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Mycobacterium smegmatis enhances shikonin-induced immunogenic cell death—an efficient in situ tumor vaccine strategy 被引量:1
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作者 Zhaoye Qian Zhe Zhang +4 位作者 Lanqi Cen Yaohua Ke Jie Shao Manman Tian Baorui Liu 《Journal of Biomedical Research》 CAS CSCD 2024年第4期369-381,共13页
Tumor vaccines are a promising avenue in cancer immunotherapy.Despite the progress in targeting specific immune epitopes,tumor cells lacking these epitopes can evade the treatment.Here,we aimed to construct an efficie... Tumor vaccines are a promising avenue in cancer immunotherapy.Despite the progress in targeting specific immune epitopes,tumor cells lacking these epitopes can evade the treatment.Here,we aimed to construct an efficient in situ tumor vaccine called Vac-SM,utilizing shikonin(SKN)to induce immunogenic cell death(ICD)and Mycobacterium smegmatis as an immune adjuvant to enhance in situ tumor vaccine efficacy.SKN showed a dose-dependent and time-dependent cytotoxic effect on the tumor cell line and induced ICD in tumor cells as evidenced by the CCK-8 assay and the detection of the expression of relevant indicators,respectively.Compared with the control group,the in situ Vac-SM injection in mouse subcutaneous metastatic tumors significantly inhibited tumor growth and distant tumor metastasis,while also improving survival rates.Mycobacterium smegmatis effectively induced maturation and activation of bone marrow-derived dendritic cells(DCs),and in vivo tumor-draining lymph nodes showed an increased maturation of DCs and a higher proportion of effector memory T-cell subsets with the Vac-SM treatment,based on flow cytometry analysis results.Collectively,the Vac-SM vaccine effectively induces ICD,improves antigen presentation by DCs,activates a specific systemic antitumor T-cell immune response,exhibits a favorable safety profile,and holds the promise for clinical translation for local tumor immunotherapy. 展开更多
关键词 mycobacterium SMEGMATIS SHIKONIN IMMUNOGENIC cell death tumor vaccines IMMUNOGENICITY CYTOTOXICITY
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Overview of the immunological mechanisms in hepatitis B virus reactivation:Implications for disease progression and management strategies 被引量:1
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作者 Hui Ma Qing-Zhu Yan +2 位作者 Jing-Ru Ma Dong-Fu Li Jun-Ling Yang 《World Journal of Gastroenterology》 SCIE CAS 2024年第10期1295-1312,共18页
Hepatitis B virus(HBV)reactivation is a clinically significant challenge in disease management.This review explores the immunological mechanisms underlying HBV reactivation,emphasizing disease progression and manageme... Hepatitis B virus(HBV)reactivation is a clinically significant challenge in disease management.This review explores the immunological mechanisms underlying HBV reactivation,emphasizing disease progression and management.It delves into host immune responses and reactivation’s delicate balance,spanning innate and adaptive immunity.Viral factors’disruption of this balance,as are interac-tions between viral antigens,immune cells,cytokine networks,and immune checkpoint pathways,are examined.Notably,the roles of T cells,natural killer cells,and antigen-presenting cells are discussed,highlighting their influence on disease progression.HBV reactivation’s impact on disease severity,hepatic flares,liver fibrosis progression,and hepatocellular carcinoma is detailed.Management strategies,including anti-viral and immunomodulatory approaches,are critically analyzed.The role of prophylactic anti-viral therapy during immunosuppressive treatments is explored alongside novel immunotherapeutic interventions to restore immune control and prevent reactivation.In conclusion,this compre-hensive review furnishes a holistic view of the immunological mechanisms that propel HBV reactivation.With a dedicated focus on understanding its implic-ations for disease progression and the prospects of efficient management stra-tegies,this article contributes significantly to the knowledge base.The more profound insights into the intricate interactions between viral elements and the immune system will inform evidence-based approaches,ultimately enhancing disease management and elevating patient outcomes.The dynamic landscape of management strategies is critically scrutinized,spanning anti-viral and immunomodulatory approaches.The role of prophylactic anti-viral therapy in preventing reactivation during immunosuppressive treatments and the potential of innovative immunotherapeutic interventions to restore immune control and proactively deter reactivation. 展开更多
关键词 Hepatitis B virus reactivation immunological mechanisms Disease progression Management strategies Immune response
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Core fucosylation and its roles in gastrointestinal glycoimmunology
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作者 Nian-Zhu Zhang Li-Fen Zhao +5 位作者 Qian Zhang Hui Fang Wan-Li Song Wen-Zhe Li Yu-Song Ge Peng Gao 《World Journal of Gastrointestinal Oncology》 SCIE 2023年第7期1119-1134,共16页
Glycosylation is a common post-translational modification in eukaryotic cells.It is involved in the production of many biologically active glycoproteins and the regulation of protein structure and function.Core fucosy... Glycosylation is a common post-translational modification in eukaryotic cells.It is involved in the production of many biologically active glycoproteins and the regulation of protein structure and function.Core fucosylation plays a vital role in the immune response.Most immune system molecules are core fucosylated glycoproteins such as complements,cluster differentiation antigens,immunoglobulins,cytokines,major histocompatibility complex molecules,adhesion molecules,and immune molecule synthesis-related transcription factors.These core fucosylated glycoproteins play important roles in antigen recognition and clearance,cell adhesion,lymphocyte activation,apoptosis,signal transduction,and endocytosis.Core fucosylation is dominated by fucosyltransferase 8(Fut8),which catalyzes the addition ofα-1,6-fucose to the innermost GlcNAc residue of N-glycans.Fut8 is involved in humoral,cellular,and mucosal immunity.Tumor immunology is associated with aberrant core fucosylation.Here,we summarize the roles and potential modulatory mechanisms of Fut8 in various immune processes of the gastrointestinal system. 展开更多
关键词 Fucosyltransferase 8 Core fucosylation Glycoimmunology Gastrointestinal tumor immunology T cell signal pathway
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Molecular Identification of Mycobacterium Strains Responsible of Bovine Tuberculosis Cases in Bobo-Dioulasso Slaughterhouse, Burkina Faso
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作者 Mariétou Konate Aminata Fofana# +2 位作者 Yacouba Kouadima Aboubacar Sidiki Ouattara Adama Sanou 《Advances in Microbiology》 CAS 2024年第2期105-114,共10页
Bovine tuberculosis (bTB) is an endemic zoonosis significantly affects animal health in Burkina Faso. The primary causative agent is Mycobacterium tuberculosis (M. tuberculosis) complex, mainly M. bovis. Cattle are co... Bovine tuberculosis (bTB) is an endemic zoonosis significantly affects animal health in Burkina Faso. The primary causative agent is Mycobacterium tuberculosis (M. tuberculosis) complex, mainly M. bovis. Cattle are considered as natural reservoir of M. bovis. However, in Burkina Faso, the circulation of these strains remains poorly understood and documented. This study aimed to identify and characterize Mycobacterium strains from suspected carcasses during routine meat inspection at Bobo-Dioulasso refrigerated slaughterhouse. A prospective cross-sectional study was conducted from January 2021 to December 2022 on cases of seizures linked to suspected bovine tuberculosis. Microbiological and molecular analyzes were used for mycobacterial strain isolation and characterization. Out of 50 samples, 24% tested positive by microscopy and 12% by culture. Molecular analysis identified 6 strains of Mycobacteria, exclusively Mycobacterium bovis specifically the subspecies bovis (Mycobacterium bovis subsp bovis). In conclusion, M. bovis subsp bovis is the primary agent responsible for bovine tuberculosis in Bobo-Dioulasso. Continuous monitoring of mycobacterial strains is therefore necessary for the effective control of this pathology in the local cattle population. 展开更多
关键词 Bovine Tuberculosis mycobacterium bovis Molecular Identification Cattle Population Burkina Faso
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Epidemiology and Clinical Features of Mycobacterium avium Complex Pulmonary Disease in a Brazilian Amazon Cohort
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作者 Jose Tadeu Colares Monteiro Adriana Rodrigues Barretto +9 位作者 Ruan Seguin Azevedo Quaresma Bianca Miranda Gouveia Ismari Perini Furlaneto Victória Menezes da Costa Yan Corrêa Rodrigues Layana Rufino Ribeiro Ricardo J. de Paula Souza e Guimarães Alex Brito Souza Ana Roberta Fusco da Costa Karla Valéria Batista Lima 《Advances in Microbiology》 CAS 2024年第6期287-302,共16页
The incidence of Mycobacterium avium complex pulmonary disease (MACPD) has been globally increasing. The present study aims to provide a comprehensive analysis of clinical characteristics and treatment response among ... The incidence of Mycobacterium avium complex pulmonary disease (MACPD) has been globally increasing. The present study aims to provide a comprehensive analysis of clinical characteristics and treatment response among patients in the Amazon region of Brazil and conduct a retrospective cohort study at a prominent referral hospital in the State of Par, Brazil, from 2012 to 2020. The M. avium group represented 58.9% of cases, followed by M. intracellulare (35.7%), M. colombiense (3.6%), and M. chimaera (1.8%). The majority of patients (73.2%) were female and with an average age of 63 years. Primary clinical manifestations included persistent cough and sputum production. The Charlson comorbidity index (CCI) averaged 2.47, with 36.3% of patients having a CCI score equal to higher than 3. Notably, over 70% of patients had received treatment for pulmonary tuberculosis before initiating treatment for MAC infection. The fibrocavitary radiologic form was the most prevalent (55.4%), frequently exhibiting a bilateral distribution (53.6%). Antimicrobial susceptibility revealed a significant prevalence of MAC resistance to drugs in the therapeutic regimen. Despite this, most of the patients experienced clinical improvement (50%). In conclusion, this study highlights a higher prevalence of MAC infections among middle-aged women, with a history of pulmonary tuberculosis treatment and presenting the fibrocavitary radiological form was predominant. 展开更多
关键词 MACDP Nontuberculous Mycobacteria mycobacterium avium Lung Disease
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Immunological disturbance effect of exogenous histamine towards key immune cells
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作者 Yanan Liu Huan Li +5 位作者 Chong Wang Shanjun Chen Renjie Lian Weiqiang Wang Linglin Fu Yanbo Wang 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第4期1856-1863,共8页
Histamine in food has attracted widespread attention due to the potential toxicity and associated health risk.However,its influences on immunological components,especially the function of key immune cells,are still po... Histamine in food has attracted widespread attention due to the potential toxicity and associated health risk.However,its influences on immunological components,especially the function of key immune cells,are still poorly known.In this work,we explored the effects of exogenous histamine on the function of key immune cells such as intestinal epithelial cells,dendritic cells,and T cells.The results showed that histamine could affect the expression of allergy-related genes in CMT93 cells at a high dose of histamine.Moreover,it’s found that histamine could cause an imbalance in the levels of relevant immune factors secreted by dendritic cells and T cells,especially those related to allergy.At the same time,the proportion of MHC class IIpositive dendritic cells and the proportion of T helper 2(Th2)cells in CD4^(+)T cells increased after histamine stimulation.We concluded that the presence of a certain level of histamine in food may affect the expression of allergy-related cytokines,disrupt the balance of the immune homeostasis,and potentially lead to adverse immune reactions.This work demonstrated the importance of including the estimation of histamine’s immune safety in aquatic products rather than merely considering the potential risk of food poisoning. 展开更多
关键词 HISTAMINE immunological disturbance Food allergy Immune factor Edible safety
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Inferring Mycobacterium Tuberculosis Drug Resistance and Transmission using Whole-genome Sequencing in a High TB-burden Setting in China
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作者 FAN Yu Feng LIU Dong Xin +11 位作者 CHEN Yi Wang OU Xi Chao MAO Qi Zhi YANG Ting Ting WANG Xi Jiang HE Wen Cong ZHAO Bing LIU Zhen Jiang ABULIMITI Maiweilanjiang AIHEMUTI Maimaitiaili GAO Qian ZHAO Yan Lin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第2期157-169,共13页
Objective China is among the 30 countries with a high burden of tuberculosis(TB)worldwide,and TB remains a public health concern.Kashgar Prefecture in the southern Xinjiang Autonomous Region is considered as one of th... Objective China is among the 30 countries with a high burden of tuberculosis(TB)worldwide,and TB remains a public health concern.Kashgar Prefecture in the southern Xinjiang Autonomous Region is considered as one of the highest TB burden regions in China.However,molecular epidemiological studies of Kashgar are lacking.Methods A population-based retrospective study was conducted using whole-genome sequencing(WGS)to determine the characteristics of drug resistance and the transmission patterns.Results A total of 1,668 isolates collected in 2020 were classified into lineages 2(46.0%),3(27.5%),and 4(26.5%).The drug resistance rates revealed by WGS showed that the top three drugs in terms of the resistance rate were isoniazid(7.4%,124/1,668),streptomycin(6.0%,100/1,668),and rifampicin(3.3%,55/1,668).The rate of rifampicin resistance was 1.8%(23/1,290)in the new cases and 9.4%(32/340)in the previously treated cases.Known resistance mutations were detected more frequently in lineage 2 strains than in lineage 3 or 4 strains,respectively:18.6%vs.8.7 or 9%,P<0.001.The estimated proportion of recent transmissions was 25.9%(432/1,668).Multivariate logistic analyses indicated that sex,age,occupation,lineage,and drug resistance were the risk factors for recent transmission.Despite the low rate of drug resistance,drug-resistant strains had a higher risk of recent transmission than the susceptible strains(adjusted odds ratio,1.414;95%CI,1.023–1.954;P=0.036).Among all patients with drug-resistant tuberculosis(DR-TB),78.4%(171/218)were attributed to the transmission of DR-TB strains.Conclusion Our results suggest that drug-resistant strains are more transmissible than susceptible strains and that transmission is the major driving force of the current DR-TB epidemic in Kashgar. 展开更多
关键词 mycobacterium tuberculosis Whole-genome sequencing(WGS) Transmission Drug resistance XINJIANG
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Tuberculosis in the Carcinal Environment in Chad Due to the Mycobacterium Tuberculosis Circulante Complex
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作者 Ahmat Idriss Ahmat Mahamat Tahir Ngaré Hassan +4 位作者 Ngandolo Bongo Nare Richard Mahamat Adanao Adoudou Mbah Ntepe Leonel Javeres Hamidou Yacoubou Ali Mahamat Moussa 《Journal of Biosciences and Medicines》 2024年第2期214-224,共11页
Tuberculosis (TB) is a serious infectious disease and its control is considered a challenge, particularly among vulnerable populations such as prisoners. The prevalence of TB in prisons is an alarming public health pr... Tuberculosis (TB) is a serious infectious disease and its control is considered a challenge, particularly among vulnerable populations such as prisoners. The prevalence of TB in prisons is an alarming public health problem in many countries. The aim of this study is to describe the epidemiology of tuberculosis and the strategies for controlling this disease in the Chadian prison population. During the course of our study, the prevalence of tuberculosis in prisons was 9.64%. The age group between 55 years and over (43.33%) was the most represented in this study, and all patients were men with a frequency of 62.66%. The cross-tabulation of Culture_7H9G and Culture_7H9P showed that out of our total positive sample, we found a total of 87 positive strains and 63 negative strains. Our study shows that it is essential to know the prevalence of tuberculosis in all the country’s prisons. Indeed, this can serve as an indication of the need for action in prisons to reduce TB rates, in particular by improving the structure of prison environments, diagnosing new cases quickly and accurately, identifying drug-resistant strains and implementing effective, direct treatment observed in people with tuberculosis. 展开更多
关键词 mycobacterium PRISON Tuberculosis and Chad
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Early Prosthetic Valve Endocarditis with Mycobacterium Tuberculosis after Mitral Valve Replacement: A Case Report
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作者 Papa Amath Diagne Mory Camara +12 位作者 Papa Ousmane Ba Momar Sokhna Diop Moussa Samba Abdou Lahad Mbengue Jean Claude Ndiogou Dione Myriam Bizrane Marième Soda Mbaye Moussa Seck Diop Toudiani Malam Kaka Papa Salmane Ba Papa Adama Dieng Amadou Gabriel Ciss Assane Ndiaye 《World Journal of Cardiovascular Surgery》 2024年第3期33-40,共8页
Background: Tuberculous endocarditis is a rare but serious complication of heart valve replacement surgery. We report the case of a 24-year-old patient, who presented with tuberculous endocarditis after mechanical mit... Background: Tuberculous endocarditis is a rare but serious complication of heart valve replacement surgery. We report the case of a 24-year-old patient, who presented with tuberculous endocarditis after mechanical mitral valve replacement, with a favorable clinical course following anti-tuberculosis treatment. Case Presentation: We report a 24-year-old male patient, admitted to the cardiac surgery department of the Fann Hospital (Dakar, Senegal), for the management of severe mixed (rheumatic and endocarditic) mitral insufficiency with associated tricuspid insufficiency. He had a history of recurrent angina and polyarthralgia in childhood, was hospitalized several times for refractory global cardiac decompensation, and for a suspected infective endocarditis a month before his admission. On admission, the clinical examination revealed signs suggestive of mitral and tricuspid insufficiency. Transthoracic echocardiography revealed severe post-endocarditic mitral insufficiency with A3 amputation, highly mobile 15 mm vegetations on the free edge of the large valve, moderate tricuspid insufficiency, and severe pulmonary artery hypertension. Mechanical mitral valve replacement and tricuspid valve annuloplasty using autologous pericardial strip were performed via median sternotomy. After ten days, the patient presented with global cardiac decompensation associated with a clinico-biological infectious syndrome, and tans-oesophageal echography revealed an abscess at the sinotubular junction, communicating with the aorta. A thoraco-abdomino-pelvic CT scan was done, which revealed a bilateral alveolar-interstitial syndrome with mediastinal lymphadenopathy. Anti-tuberculosis treatment with RHZE was initiated for 06 months. The clinical course was favorable. Conclusion: Tuberculous endocarditis in prostheses is a serious complication of heart valve replacement surgery, which may evolve favorably under medical treatment. 展开更多
关键词 Tuberculous Endocarditis Prosthetic Valve Endocarditis mycobacterium Tuberculosis
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Mycobacterium gordoniasis of the cervical lymph nodes:A case report
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作者 Ling Peng Rong Ma +1 位作者 Yong Li Jie Cheng 《World Journal of Clinical Cases》 SCIE 2024年第19期3995-4002,共8页
BACKGROUND Owing to the advancement in bacterial identification techniques,the detection rate of non-tuberculous mycobacterium(NTM)has been on the rise.Different from Mycobacterium tuberculosis,the clinical symptoms o... BACKGROUND Owing to the advancement in bacterial identification techniques,the detection rate of non-tuberculous mycobacterium(NTM)has been on the rise.Different from Mycobacterium tuberculosis,the clinical symptoms of NTM are not easily detected,and the clinical efficacy and prognosis are somewhat heterogeneous.To report a case of Mycobacterium gordoniasis of cervical lymph node diagnosed in Anhui Chest Hospital in July 2022.CASE SUMMARY Upon examination,the patient who weighed 67.5 kg,was human immunodeficiency virus negative,healthy,without hypertension,diabetes,heart disease and other basic diseases microscopic analysis revealed granulomatous inflammation with coagulation necrosis in the lymphocyte,and tuberculosis was not ruled out.Plain computed tomography scans of the neck and chest indicated the presence of a single grayish-yellow and grayish-brown tissue,the dimensions of which was top of form 10.5 cm×3.0 cm×1.5 cm.After pathological consultation in our hospital,the diagnosis was confirmed as NTM infection.CONCLUSION This case report and the clinical epidemiological research on improving NTM have important guiding significance for improving decision-making in clinical treatments. 展开更多
关键词 mycobacterium gordoniasis Cervical lymph nodes Literature analysis Clinical treatments Case Report
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Overlapping infections of Mycobacterium canariasense and Nocardia farcinica in an immunocompetent patient:A case report
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作者 Hai-Yan Huang Kun-Peng Bu +1 位作者 Jin-Wei Liu Jing Wei 《World Journal of Clinical Cases》 SCIE 2024年第12期2079-2085,共7页
BACKGROUND Infections by non-tuberculous mycobacteria(NTM)have become more common in recent years.Mycobacterium canariasense(M.canariasense)was first reported as an opportunistic pathogen in 2004,but there have been v... BACKGROUND Infections by non-tuberculous mycobacteria(NTM)have become more common in recent years.Mycobacterium canariasense(M.canariasense)was first reported as an opportunistic pathogen in 2004,but there have been very few case reports since then.Nocardia is a genus of aerobic and Gram-positive bacilli,and these species are also opportunistic pathogens and in the Mycobacteriales order.Conventional methods for diagnosis of NTM are inefficient.Metagenomic next-generation sequencing(mNGS)can rapidly detect many pathogenic microorganisms,even rare species.Most NTM and Nocardia infections occur in immunocompromised patients with atypical clinical symptoms.There are no previous reports of infection by M.canariasense and Nocardia farcinica(N.farcinica),especially in immunocompetent patients.This case report describes an immunocompetent 52-year-old woman who had overlapping infections of M.canariasense,N.farcinica,and Candida parapsilosis(C.parapsilosis)based on mNGS.CASE SUMMARY A 52-year-old woman presented with a productive cough and chest pain for 2 wk,and recurrent episodes of moderate-grade fever for 1 wk.She received antibiotics for 1 wk at a local hospital,and experienced defervescence,but the productive cough and chest pain persisted.We collected samples of a lung lesion and alveolar lavage fluid for mNGS.The lung tissue was positive for M.canariasense,N.farcinica,and C.parapsilosis,and the alveolar lavage fluid was positive for M.canariasense.The diagnosis was pneumonia,and application of appropriate antibiotic therapy cured the patient.CONCLUSION Etiological diagnosis is critical for patients with infectious diseases.mNGS can identify rare and novel pathogens,and does not require a priori knowledge. 展开更多
关键词 Overlapping infection mycobacterium canariasense Nocardia farcinica Metagenomic next-generation sequencing technology Case report
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Integrative bioinformatics and in vitro exploration of EVI2A expression:unraveling its immunological and prognostic implications in kidney renal clear cell carcinoma
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作者 RONG LIU SHENG LI +7 位作者 SITU XIONG FUCUN ZHENG XIANGPENG ZHAN JIN ZENG BIN FU SONGHUI XU SHAOXING ZHU RU CHEN 《Oncology Research》 SCIE 2024年第11期1733-1746,共14页
EVI2A has emerged as a significant biomarker in various diseases;however,its biological role and mechanism in kidney renal clear cell carcinoma(KIRC)remains unexplored.We used TCGA and GEO databases to analyze EVI2A g... EVI2A has emerged as a significant biomarker in various diseases;however,its biological role and mechanism in kidney renal clear cell carcinoma(KIRC)remains unexplored.We used TCGA and GEO databases to analyze EVI2A gene expression comprehensively and performed pan-cancer assessments.Clinical relevance was evaluated through Kaplan-Meier analysis and ROC curves.The gene’s immune relevance was explored through analyses of the tumor microenvironment(TME),Tumor Immune Single-cell Hub(TISCH),immune checkpoints,and immunotherapy sensitivity.Our results indicate that EVI2A expression is upregulated in KIRC,showing correlations with tumor grade and T/N/M stage.EVI2A demonstrates high diagnostic accuracy(AUC=0.906)and predicts poor overall and progression-free survival in KIRC patients.Furthermore,EVI2A expression exhibits significant associations with immunity,including TME scores and specific immune cell types such as Tfh cells,CD4 memory T cells,and CD8+T cells.Elevated EVI2A expression suggests increased sensitivity to PD-1/CTLA-4 and tyrosine kinase inhibitors.In vitro assays confirmed the impact of EVI2A on KIRC behavior,with its knockdown resulting in reduced cell proliferation and migration.In conclusion,our comprehensive analysis identifies EVI2A as a promising biomarker and a novel therapeutic target for intervening in KIRC.These findings hold significant implications for further research and potential clinical applications. 展开更多
关键词 EVI2A Kidney Renal Clear Cell Carcinoma(KIRC) Prognosis immunological analysis
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Obstructive sleep apnea-hypopnea syndrome immunological relationship
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作者 Mahmoud Ali Alaa Ramadan Salim Surani 《World Journal of Clinical Cases》 SCIE 2024年第27期6011-6014,共4页
Obstructive sleep apnea-hypopnea syndrome(OSAHS)is a complex disorder cha-racterized by symptoms resulting from intermittent hypoxia and hypopnea,with research indicating a crucial role of immune system dysregulation ... Obstructive sleep apnea-hypopnea syndrome(OSAHS)is a complex disorder cha-racterized by symptoms resulting from intermittent hypoxia and hypopnea,with research indicating a crucial role of immune system dysregulation and genetic variations in its pathogenesis.A recent Zhao et al study utilizes Mendelian ran-domization analysis to explore the causal relationship between immune cell characteristics and OSAHS.The study identifies specific lymphocyte subsets as-sociated with OSAHS,providing valuable insights into the disease's pathophy-siology and potential targets for therapeutic intervention.The findings underscore the significance of genetic and immunological factors in sleep disorders,offering a fresh perspective on OSAHS's complexities.Compared to existing literature,Zhao et al's study stands out for its focus on genetic markers and specific immune responses associated with OSAHS,expanding upon previous research primarily centered on systemic inflammation.In conclusion,the study represents a signi-ficant advancement in the field,shedding light on the causal role of immune cells in OSAHS and paving the way for future research and targeted treatments. 展开更多
关键词 Obstructive sleep apnea Mendelian randomization Lymphocyte charac-teristics immunology Obstructive sleep apnea-hypopnea syndrome
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Mutation Characteristics of inhA and katG Genes in Isoniazid-Resistant Mycobacterium Tuberculosis Patients in Xinjiang
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作者 Shu-Tao Li Wen-Long Guan He Yang 《Journal of Clinical and Nursing Research》 2024年第1期140-145,共6页
Objective:To analyze the mutation characteristics of inhA and katG genes in isoniazid-resistant Mycobacterium tuberculosis in Xinjiang.Methods:The katG and inhA in 148 strains of isoniazid-resistant Mycobacterium tube... Objective:To analyze the mutation characteristics of inhA and katG genes in isoniazid-resistant Mycobacterium tuberculosis in Xinjiang.Methods:The katG and inhA in 148 strains of isoniazid-resistant Mycobacterium tuberculosis were amplified through fluorescence quantitative PCR,and the amplified products were sequenced and compared.Results:The inhA gene mutation rate of 148 strains of isoniazid-resistant mycobacterium tuberculosis was 13.51%(20/148),among which the inhA gene mutation rate among patients of Han,Uygur,and Kazakh ethnicity were 15.87%,13.21%,and 17.65%,respectively.There was no significant difference in the inhA mutation rate among nationalities(c^(2)=2.897,P>0.05).The mutation rate of the katG gene was 84.46%(125/148),among which the mutation rates of patients of Han,Uyghur,and Kazak ethnicities were 82.54%,84.91%,and 76.47%,respectively.The Hui and other ethnic groups were all affected by the katG gene mutation.There was no significant difference in the mutation rate of the katG gene among different ethnicities(c^(2)=3.772,P>0.05).The mutation rates of the inhA gene in southern Xinjiang,northern Xinjiang,and other provinces were 18.60%,9.28%,and 37.50%,respectively.The mutation rates of the inhA gene in different regions were statistically different(c^(2)=6.381,P<0.05).There was no significant difference in the inhA mutation rate between patients from southern and northern Xinjiang(c^(2)=2.214,P>0.05)and between southern Xinjiang and other provinces(c^(2)=1.424,P>0.05).However,the mutation rate of the inhA gene in patients from other provinces was higher than that in northern Xinjiang(c^(2)=5.539,P<0.05).The mutation rates of the katG gene in southern Xinjiang,northern Xinjiang,and other provinces were 81.40%,87.63%,and 62.50%,respectively.There was no significant difference in the mutation rates of the katG gene among different regions(c^(2)=3.989,P>0.05).Conclusion:katG gene mutation was predominant in isoniazid-resistant tuberculosis patients in Xinjiang Uygur Autonomous Region,and inhA and katG gene mutation were no different among different ethnic groups. 展开更多
关键词 mycobacterium tuberculosis Drug resistance ISONIAZID Gene mutation
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Immunological Evaluation of a Novel Mycobacterium tuberculosis Antigen Rv0674 被引量:4
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作者 XIAO Tong Yang LIU Hai Can +8 位作者 LI Xiao Qin HUANG Ming Xiang LI Gui Lian LI Na YAN Yu Han LUO Qiao WANG Xue Zhi LI Ma Chao WAN Kang Lin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2019年第6期427-437,共11页
Objective This study aimed to characterize the diagnostic and vaccine potential of a novel Mycobacterium tuberculosisantigen Rv0674. Methods To evaluate thediagnostic potential and antigenicity of Rv0674, IgG was eval... Objective This study aimed to characterize the diagnostic and vaccine potential of a novel Mycobacterium tuberculosisantigen Rv0674. Methods To evaluate thediagnostic potential and antigenicity of Rv0674, IgG was evaluated using ELISA and interferon (IFN)-γ was done by using ELISpot assay among TB patients and healthy donors. For immunogenicity evaluation, BALB/c mice were immunized with Rv0674. Cytokine production was determined by cytokine release assay using an ELISA kit, and the antibodies were tested using ELISA. Results The results of serum Elisa tests showed that Rv0674 specific immunoglobulin G (IgG) response was higher in TB patients than negative controls. And Rv0674 had good performance in serological test with sensitivity and specificity of 77.1% and 81.1%, respectively. While it shows poor sensitivity and specificity of 26.23% and 79.69% for IFN-γ tests. In BALB/c mice, Rv0674 adjuvant by DDA/PolyI:C could also induce a high level of IFN-γ, interleukin-2 and interleukin-6 as well as a high IgG titer in both high-and low-dose groups indicating that Rv0674 is essential in humoral and cellular immunity. Moreover, the cytokine profile and IgG isotypecharacterized Rv0674 as a Th1/Th2-mixed-type protective immunity with the predominance of Th1 cytokines. Conclusion Rv0674 may be a good potential candidate for the development of TB serological diagnosis and a new TB vaccine. 展开更多
关键词 ANTIGEN immunologIC diagnosis mycobacterium TUBERCULOSIS Rv0674 VACCINE
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A Multi-Agent Immunology Model for Security Computer 被引量:5
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作者 Liang Yi wen, Li Huan, Kang Li shan, Dong Hong bin College of Computer Science, Wuhan University, Wuhan 430072, China 《Wuhan University Journal of Natural Sciences》 CAS 2001年第Z1期486-490,共5页
This paper presents a computer immunology model for computer security, whose main components are defined as idea of Multi Agent. It introduces the natural immune system on the principle, discusses the idea and chara... This paper presents a computer immunology model for computer security, whose main components are defined as idea of Multi Agent. It introduces the natural immune system on the principle, discusses the idea and characteristics of Multi Agent. It gives a system model, and describes the structure and function of each agent. Also, the communication method between agents is described. 展开更多
关键词 computer immunology multi agent computer security
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Exercise immunology:Future directions 被引量:7
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作者 David C.Nieman Brandt D.Pence 《Journal of Sport and Health Science》 SCIE 2020年第5期432-445,共14页
Several decades of research in the area of exercise immunology have shown that the immune system is highly responsive to acute and chronic exercise training.Moderate exercise bouts enhance immunosurveillance and when ... Several decades of research in the area of exercise immunology have shown that the immune system is highly responsive to acute and chronic exercise training.Moderate exercise bouts enhance immunosurveillance and when repeated over time mediate multiple health benefits.Most of the studies prior to 2010 relied on a few targeted outcomes related to immune function.During the past decade,technologic advances have created opportunities for a multi-omics and systems biology approach to exercise immunology.This article provides an overview of metabolomics,lipidomics,and proteomics as they pertain to exercise immunology,with a focus on immunometabolism.This review also summarizes how the composition and diversity of the gut microbiota can be influenced by exercise,with applications to human health and immunity.Exercise-induced improvements in immune function may play a critical role in countering immunosenescence and the development of chronic diseases,and emerging omics technologies will more clearly define the underlying mechanisms.This review summarizes what is currently known regarding a multi-omics approach to exercise immunology and provides future directions for investigators. 展开更多
关键词 EXERCISE immunology LIPIDOMICS Metabolomics PROTEOMICS
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Immunology of tuberculosis 被引量:8
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作者 Qing Zhang Isamu Sugawara 《World Journal of Experimental Medicine》 2012年第4期70-74,共5页
Various T cells and macrophages as well as cytokines are involved in the immunopathogenesis of tuberculosis(TB). A better understanding of immunology of TB can not only lead to the discovery of new immunodiagnostic to... Various T cells and macrophages as well as cytokines are involved in the immunopathogenesis of tuberculosis(TB). A better understanding of immunology of TB can not only lead to the discovery of new immunodiagnostic tools, accelerate and facilitate the assessment of new therapeutic methods, but also find new treatment regimens. In this highlight topic we cover the latest developments in the role of T cells, macrophages, Natural killer(NK) cells, invariant NK T(iN KT) cells and γδ T cells with TB infection. Histologically, TB displays exudative inflammation, proliferative inflammation and productive inflammation depending on the time course. T cells first recognize antigen within the mycobacterially-infected lung, and then activate, differentiate, but the first T cell activation occurs in the draining lymph nodes of the lung. When protective T cells reach sufficient numbers, they can stop bacterial growth. Except for T cells, neutrophils also participate actively in defense against early-phase TB. NK cells are innate lymphocytes which are a first line of defense against mycobacterial infection. Human NK cells use the NKp46, NCRs and NKG2 D receptors to lyse Mycobacterium TB-infected monocytes and alveolar macrophages. NK cells produce not only interferon-γ, but also interleukin(IL)-22, which is induced by IL-15 and DAP-10. iN KT cells show different phenotypes and functions. Many iN KT cells are CD4+,few iN KT cells are CD8+, while an additional fraction of iN KT cells are negative for both CD4 and CD8. γδ T cells represent an early innate defense in antimycobacterial immunity. Studies done in humans and animal models have demonstrated complex patterns of γδ T cell immune responses during chronic TB. Human alveolar macrophages and monocytes can serve as antigen presentation cells for γδ T cells. Furthermore, the predominance of Vγ9Vδ2 T cells in TB has been confirmed. 展开更多
关键词 MYCOBACTERIA TUBERCULOSIS immunology T CELLS Macrophages Dendritic CELLS Invariant natural KILLER T cell NEUTROPHILS Cytokine
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Liver immunology and herbal treatment 被引量:3
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作者 Yasemin H Balaban Ceylan Aka Ufuk Koca-Caliskan 《World Journal of Hepatology》 CAS 2017年第17期757-770,共14页
Beyond the metabolic functions, the liver recently has been defined as an organ of immune system(IS), which have central regulatory role for innate and adaptive immunity. The liver keeps a delicate balance between hep... Beyond the metabolic functions, the liver recently has been defined as an organ of immune system(IS), which have central regulatory role for innate and adaptive immunity. The liver keeps a delicate balance between hepatic screening of pathogenic antigens and immune tolerance to self-antigens. Herbal treatments with immunological effects have potential to alter this hepatic immune balance towards either therapeutic side or diseases side by inducing liver injury via hepatotoxicity or initiation of autoimmune diseases. Most commonly known herbal treatments, which have therapeutic effect on liver and IS, have proven via in vitro, in vivo, and/or clinical studies were summarized in this review. 展开更多
关键词 Herbal treatments Hepatic immunology Drug induced liver injury Adaptive immunity Innate immunity
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Progresses in Integrated Traditional Chinese and Western Medical Research on Reproductive Immunology 被引量:1
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作者 李大金 李超荆 《Chinese Journal of Integrated Traditional and Western Medicine》 2003年第2期142-145,共4页
Reproductive immunology is a crossed subject of reproductive biology and immunobiology. Great progresses have been achieved in the subject along with the deep development in life science. Modern reproductive immunolog... Reproductive immunology is a crossed subject of reproductive biology and immunobiology. Great progresses have been achieved in the subject along with the deep development in life science. Modern reproductive immunology includes immunological regulation of fertility, materno-fetal immuno-regu-lation, and neuro-reproductive endocrino-immune network. With the integrated traditional Chinese and western medicine (ICWM) applied to reproductive immunology it has been greatly enriched in research contents and depth. The present review is to introduce the recent progresses in research of integrated medicine on reproductive immunology. 展开更多
关键词 in with IS Progresses in Integrated Traditional Chinese and Western Medical Research on Reproductive immunology of that on
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