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Effect of Astragalus Injection on Serious Abdominal Traumatic Patients’ Cellular Immunity 被引量:4
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作者 吴坚 王毅鑫 +3 位作者 苏文利 朱文献 陆景伟 厉振凯 《Chinese Journal of Integrated Traditional and Western Medicine》 2006年第1期29-31,共3页
Objective: To explore the change of serious abdominal traumatic patients' cellular immunity and the effect of Astragalus Injection (AI) on it. Methods: Sixty-three serious abdominal traumatic patients were random... Objective: To explore the change of serious abdominal traumatic patients' cellular immunity and the effect of Astragalus Injection (AI) on it. Methods: Sixty-three serious abdominal traumatic patients were randomly assigned into two groups, the conventional group and the treated group, patients in the conventional group were given conventional treatment, while others in the treated group were given conventional treatment as the basis, with Al20 ml was added into 250 ml of 5% glucose solution given through intravenous dripping, and then on the first day and 14th day, their T cell activated antigens as well as that of 10 healthy subjects were monitored. Results: On the first day, in the conventional group and treated group, the levels of CD3^+ , CD4^+ , CD4^+/CD8^+ , 0D16^+ , CD69^+ and CD3^+/homologous leucocytic antigen-DR (HLA-DR+ ) were apparently lower than those in the healthy group ( P〈0.05), while the CD8^+ was significantly higher than that in the healthy group (P〈0.05), and there was no significant difference between the conventional group and the treated group (P〉0.05) ; on the 14th days, the levels of CD3^+, CD4^+, CD4^+/CD8^+, CD16^+, CD69^+ and CD3^+/HLA-DR^+ of the treated group got closed to healthy subject value, and got even higher than those of conventional group (P〈0. 05); CD8^+ got close to that of healthy subjects, while obviously lower than that of conventional group ( P〈0. 05). Conclusion: After serious abdominal trauma, cellular immunity lowered, auxiliary use of AI was beneficial to the restoration of cellular immunity. 展开更多
关键词 TRAUMA Astragalus Injection cellular immunity
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Cellular immunity augmentation in mainstream oncologic therapy 被引量:2
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作者 Daohong Chen Xiaoshi Zhang 《Cancer Biology & Medicine》 SCIE CAS CSCD 2017年第2期121-128,共8页
Anticancer immunotherapy has undergone a long evolving journey for decades, and has been dramatically applied to mainstream treatments in oncology in recent 5 years. This progress represents an advanced milestone foll... Anticancer immunotherapy has undergone a long evolving journey for decades, and has been dramatically applied to mainstream treatments in oncology in recent 5 years. This progress represents an advanced milestone following cytotoxic medicine and targeted therapy. Cellular immunity plays a pivotal role in the immune responses of hosts to tumor antigens. Such immunity is notably suppressed during neoplastic progression due to immuno-editing processes. Cellular immunity can also be selectively reactivated to combat malignancies while exploiting the advantages of contemporary scientific breakthroughs in molecular immunology and genetic engineering. The rapid advancement of cellular immunity-based therapeutic approaches has achieved high efficacy in certain cancer patients. Consequently, the landscape of oncologic medicine and pharmaceutical innovation has transformed recently. In this regard, we present a comprehensive update on clinically established anti-cancer treatments with cell immunity augmentation as the major mechanism of action. 展开更多
关键词 cellular immunity ONCOLOGY pharmaceutical innovation
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Cryoablation Combined with TACE for Treating Large Hepatocellular Carcinoma: Tumor Load and Cellular Immunity 被引量:1
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作者 Haipeng Yu Lanlan Yang +4 位作者 Zhi Guo Wenge Xin Fang Liu Xiuying Guo Baoguo Li 《Chinese Journal of Clinical Oncology》 CSCD 2005年第6期842-848,共7页
OBJECTIVE To study the effectiveness on the tumor load and cellular immune function of percutaneous cryoablation (argon-helium cryoablative system, AHCS) combined with transarterial chemoembolization (TACE) for tr... OBJECTIVE To study the effectiveness on the tumor load and cellular immune function of percutaneous cryoablation (argon-helium cryoablative system, AHCS) combined with transarterial chemoembolization (TACE) for treating large hepatocellular carcinomas (HCCs) with diameters over 10 ca. METHODS A total of 48 HCC patients were treated with AHCS after TACE. Tumor sizes ranged from 10 to 14 cm. All cases were a hypervascular type. There were 38 Child A cases and 10 Child B cases. Forty were AFP positive and 8 negative. The patients were randomized with therapy group consisting of 26 cases and the control group 22 cases. The therapy group received AHCS 4 weeks following TACE treatment. Reexamination included pathology, tumor markers, T-lymphocyte subgroup levels and computed tomography or MRI. The necrosis rate of the tumor load was calculated by Cavalieri's theory. EORTC QLQ-C30 was used in quality of life evaluation. RESULTS The average tumor-load reduction rate (necrosis rate) was 8.07% after TACE, and 28.65% after AHCS. Coagulation necrosis was produced in the target area. The tumor markers deceased significantly after AHCS. Tumor-load reduction after AHCS was more significant than after TACE. Suppression of cellular immunity after TACE was significant. In contrast, CD3^+, CD4^+ and NK increased after AHCS and an abnormal T-lymphocyte distribution was corrected. Quality of life after AHCS increased according to the EORTC QLQ-C30 evaluation. No severe complications occurred. CONCLUSION Percutaneous AHCS cryoablation after TACE reduced the tumor load in the short term. At the same time, cellular immune function was increased after AHCS. TACE was critical in increasing the therapeutic efficacy of AHCS because of its embolisation of blood vessels preventing a Flow Effect. Reduction of the tumor load in the short term may conduce to increase cellular immunity. Percutaneous AHCS cryoablation combined with TACE can reduce the tumor load, improve cellular immunity and increase quality of life of HCC patients. This type of therapy deserves to be studied further research. 展开更多
关键词 CRYOABLATION transarterial chemoembolization tumor load cellular immunity hepatocellular carcinoma.
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Correlative factors of poor prognosis and abnormal cellular immune function in patients with Alzheimer’s disease 被引量:2
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作者 Hua Bai Hong-Mei Zeng +2 位作者 Qi-Fang Zhang Yue-Zhi Hu Fei-Fei Deng 《World Journal of Clinical Cases》 SCIE 2024年第6期1063-1075,共13页
BACKGROUND Alzheimer’s disease(AD)is a serious disease causing human dementia and social problems.The quality of life and prognosis of AD patients have attracted much attention.The role of chronic immune inflammation... BACKGROUND Alzheimer’s disease(AD)is a serious disease causing human dementia and social problems.The quality of life and prognosis of AD patients have attracted much attention.The role of chronic immune inflammation in the pathogenesis of AD is becoming more and more important.AIM To study the relationship among cognitive dysfunction,abnormal cellular immune function,neuroimaging results and poor prognostic factors in patients.METHODS A retrospective analysis of 62 hospitalized patients clinical diagnosed with AD who were admitted to our hospital from November 2015 to November 2020.Collect cognitive dysfunction performance characteristics,laboratory test data and neuroimaging data from medical records within 24 h of admission,including Mini Mental State Examination Scale score,drawing clock test,blood T lymphocyte subsets,and neutrophils and lymphocyte ratio(NLR),disturbance of consciousness,extrapyramidal symptoms,electroencephalogram(EEG)and head nucleus magnetic spectroscopy(MRS)and other data.Multivariate logistic regression analysis was used to determine independent prog-nostic factors.the modified Rankin scale(mRS)was used to determine whether the prognosis was good.The correlation between drug treatment and prognostic mRS score was tested by the rank sum test.RESULTS Univariate analysis showed that abnormal cellular immune function,extrapyramidal symptoms,obvious disturbance of consciousness,abnormal EEG,increased NLR,abnormal MRS,and complicated pneumonia were related to the poor prognosis of AD patients.Multivariate logistic regression analysis showed that the decrease in the proportion of T lym-phocytes in the blood after abnormal cellular immune function(odd ratio:2.078,95%confidence interval:1.156-3.986,P<0.05)was an independent risk factor for predicting the poor prognosis of AD.The number of days of donepezil treatment to improve cognitive function was negatively correlated with mRS score(r=0.578,P<0.05).CONCLUSION The decrease in the proportion of T lymphocytes may have predictive value for the poor prognosis of AD.It is recommended that the proportion of T lymphocytes<55%is used as the cut-off threshold for predicting the poor prog-nosis of AD.The early and continuous drug treatment is associated with a good prognosis. 展开更多
关键词 Alzheimer’s disease cellular immunity PROGNOSIS T lymphocytes Magnetic resonance spectroscopy
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Humoral and cellular immunity against diverse SARS-CoV-2 variants
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作者 Changxu Chen Xin Wang Zeli Zhang 《Journal of Genetics and Genomics》 SCIE CSCD 2023年第12期934-947,共14页
Since the outbreak of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in late 2019, the virus has rapidly spread worldwide. This has led to an unprecedented ... Since the outbreak of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in late 2019, the virus has rapidly spread worldwide. This has led to an unprecedented global pandemic, marked by millions of COVID-19 cases and a significant number of fatalities. Over a relatively short period, several different vaccine platforms are developed and deployed for use globally to curb the pandemic. However, the genome of SARS-CoV-2 continuously undergoes mutation and/or recombination, resulting in the emergence of several variants of concern (VOC). These VOCs can elevate viral transmission and evade the neutralizing antibodies induced by vaccines, leading to reinfections. Understanding the impact of the SARS-CoV-2 genomic mutation on viral pathogenesis and immune escape is crucial for assessing the threat of new variants to public health. This review focuses on the emergence and pathogenesis of VOC, with particular emphasis on their evasion of neutralizing antibodies. Furthermore, the memory B cell, CD4+, and CD8+ T cell memory induced by different COVID-19 vaccines or infections are discussed, along with how these cells recognize VOC. This review summarizes the current knowledge on adaptive immunology regarding SARS-CoV-2 infection and vaccines. Such knowledge may also be applied to vaccine design for other pathogens. 展开更多
关键词 SARS-CoV-2 COVID-19 Vaccines Humoral immunity cellular immunity
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Rho 1 participates in parasitoid wasp eggs maturation and host cellular immunity inhibition 被引量:1
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作者 Ruijuan Wang Zhe Lin +5 位作者 Lizhen Zhou Caihua Chen Xianhao Yu Junje Zhang Zhen Zou Zhiqiang Lu 《Insect Science》 SCIE CAS CSCD 2023年第3期677-692,共16页
Endoparasitoid wasps introduce venom into their host insects during the egglaying stage.Venom proteins play various roles in the host physiology,development,immunity,and behavior manipulation and regulation.In this st... Endoparasitoid wasps introduce venom into their host insects during the egglaying stage.Venom proteins play various roles in the host physiology,development,immunity,and behavior manipulation and regulation.In this study,we identified a venom protein,MmRhol,a small guanine nucleotide-binding protein derived from ovary in the endoparasitoid wasp Microplitis mediator and found that knockdown of its expression by RNA interference caused down-regulation of vitellogenin and juvenile hormone,egg production,and cocoons formation in the female wasps.We demonstrated that MmRho1 entered the cotton bollworm's(host)hemocytes and suppressed cellular immune responses after parasitism using immunofluorescence staining.Furthermore,wasp MmRhol interacted with the cotton bollworm's actin cytoskeleton rearrangement regulator diaphanous by yeast 2-hybrid and glutathione s-transferase pull-down.In conclusion,this study indicates that MmRho1 plays dual roles in wasp development and the suppression of the host insect cellular immune responses. 展开更多
关键词 cellular immune responses diaphanous endoparasitoid wasp juvenile hormone small guanine nucleotide-binding protein VITELLOGENESIS
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Trade-off between cellular immunity and life span in meal- worm beetles Tenebrio molitor 被引量:1
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作者 Indrikis KRAMS Janina DAUKSTE +4 位作者 Inese KIVLENIECE Ants KAASIK Tatjana KRAMA Todd M. FREEBERG Markus J. RANTALA 《Current Zoology》 SCIE CAS CSCD 2013年第3期340-346,共7页
Encapsulation is a nonspecific, cellular response through which insects defend themselves against multicellular pathogens. During this immune reaction, haemocytes recognize an object as foreign and cause other haemocy... Encapsulation is a nonspecific, cellular response through which insects defend themselves against multicellular pathogens. During this immune reaction, haemocytes recognize an object as foreign and cause other haemocytes to aggregate and form a capsule around the object, often consisting of melanized cells. The process of melanisation is accompanied by the forma- tion of potentially toxic reactive oxygen species, which can kill not only pathogens but also host cells. In this study we tested whether the encapsulation response is costly in mealworm beetles Tenebrio molitor. We found a negative relationship between the duration of implantation via a nylon monofilament and remaining life span. We also found a negative relationship between the strength of immune response and remaining life span, suggesting that cellular immunity is costly in T. molitor, and that there is a trade-off between immune response and remaining life span. However, this relationship disappeared at 31-32 hours of implanta- tion at 25 ± 2℃. As the disappearance of a relationship between duration of implantation and lifespan coincided with the highest values of encapsulation response, we concluded that the beetles stopped investment in the production of melanotic cells, as the implant, a synthetic parasite, was fully isolated from the host's tissues . 展开更多
关键词 Cost of immunity cellular immunity ENCAPSULATION LIFESPAN Tenebrio molitor
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Effect of Shenmai Injection on Cardiac Function and Cellular Immunity of Patients with Infantile Viral Myocarditis
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作者 贾旭林 李润森 +3 位作者 白翠莲 杨雅琳 李亚蕊 刘秀萍 《Chinese Journal of Integrative Medicine》 SCIE CAS 1997年第1期26-29,共4页
Objective: To evaluate the clinical effect of Shenmai injection (SMI) on infantile viral myocarditis. Methods: Fifty patients were treated with SMI combined with routine Western medicines, the effects were observed an... Objective: To evaluate the clinical effect of Shenmai injection (SMI) on infantile viral myocarditis. Methods: Fifty patients were treated with SMI combined with routine Western medicines, the effects were observed and compared with those treated with Western medicines alone or compound Salviae liquid. Results: The cardiac function and cellular immunity of patients treated with SMI were significantly improved. The effect of SMI was superior to that of control groups. Conclusion: Using SMI as supplementary treatment in treating infantile viral myocarditis was helpful in recovery of cardiac function and cellular immunity. 展开更多
关键词 Shenmai injection infantile viral myocarditis cardiac function cellular immunity
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Simultaneous enhancement of cellular and humoral immunity by the lymph node-targeted cholesterolized TLR7 agonist liposomes
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作者 Dandan Wan Ziyi Bai +9 位作者 Yu Zhang Li Chen Haiying Que Tianxia Lan Weiqi Hong Jiayu Huang Cai He Yuquan Wei Qiang Pu Xiawei Wei 《Acta Pharmaceutica Sinica B》 SCIE CAS CSCD 2024年第10期4577-4590,共14页
Toll-like receptor(TLR)agonists,as promising adjuvants and immunotherapeutic agents,have the potential to enhance immune responses and modulate antigen-dependent T-cell immune memory through activation of distinct sig... Toll-like receptor(TLR)agonists,as promising adjuvants and immunotherapeutic agents,have the potential to enhance immune responses and modulate antigen-dependent T-cell immune memory through activation of distinct signaling pathways.However,their clinical application is hindered by uncontrolled systemic inflammatory reactions.Therefore,it is imperative to create a vaccine adjuvant for TLR receptors that ensures both safety and efficacy.In this study,we designed lymph node-targeted cholesterolized TLR7 agonist cationic liposomes(1V209-Cho-Lip^(+))to mitigate undesired side effects.Co-delivery of the model antigen OVA and cholesterolized TLR7 agonist facilitated DC maturation through TLR activation while ensuring optimal presentation of the antigen to CD8^(+)T cells.The main aim of the present study is to evaluate the adjuvant effectiveness of 1V209-Cho-Lip^(+)in tumor vaccines.Following immunization with 1V209-Cho-Lip^(+)+OVA,we observed a pronounced"depot effect"and enhanced trafficking to secondary lymphoid organs.Prophylactic vaccination with 1V209-Cho-Lip^(+)^(+)OVA significantly delays tumor development,prolongs mouse survival,and establishes durable immunity against tumor recurrence.Additionally,1V209-Cho-Lip^(+)+OVA,while used therapeutic tumor vaccine,has demonstrated its efficacy in inhibiting tumor progression,and when combined with anti-PD-1,it further enhances antitumor effects.Therefore,the co-delivery of antigen and lymph node-targeted cholesterolized TLR7 agonist shows great promise as a cancer vaccine. 展开更多
关键词 TLR7 agonist Cationic liposomes Lymph node Cancer nanovaccines IMMUNOTHERAPY CROSS-PRESENTATION cellular immunity Humoral immunity
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Predictors of prognosis in Alzheimer’s disease: The role of cognitive dysfunction, immune abnormalities, and advanced neuroimaging
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作者 Hafsa Arshad Raja Abdulqadir J Nashwan 《World Journal of Clinical Cases》 SCIE 2024年第27期6004-6006,共3页
Alzheimer’s disease(AD)is a grave illness that results in cognitive and social issues.A recent study examined the association between neuroimaging results,cognitive dysfunction,atypical cellular immune function,and p... Alzheimer’s disease(AD)is a grave illness that results in cognitive and social issues.A recent study examined the association between neuroimaging results,cognitive dysfunction,atypical cellular immune function,and poor prognostic factors in AD patients who demonstrated poor prognosis.Poor prognosis was associated with abnormal cellular immune function,extrapyramidal symptoms,altered consciousness,abnormal electroencephalogram,modified Rankin scale,increased neutrophil lymphocyte ratio,and severe pneumonia.The impaired cellular immune function characterized by a reduction in the blood T lym-phocytes’proportion predicted poor prognosis as an independent risk factor in AD.Early initiation and maintenance of AD medications is associated with better outcomes. 展开更多
关键词 Amyloid beta peptide Alzheimer's disease DEMENTIA cellular immunity PROGNOSIS T lymphocytes Magnetic resonance spectroscopy
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Impact of dexmedetomidine-assisted anesthesia in elderly patients undergoing radical resection of colon cancer
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作者 Xiao-Peng Tian Hui-Min Bu +1 位作者 Hong-Yan Ma Min Zhao 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第9期2925-2933,共9页
BACKGROUND Radical resection of colon cancer under general anesthesia is one of the main treatment methods for this malignancy.However,due to the physiological charac-teristics of elderly patients,the safety of periop... BACKGROUND Radical resection of colon cancer under general anesthesia is one of the main treatment methods for this malignancy.However,due to the physiological charac-teristics of elderly patients,the safety of perioperative anesthesia needs special attention.As anα2-adrenergic receptor agonist,dexmedetomidine(Dex)has attracted much attention from anesthesiologists due to its stabilizing effect on heart rate and blood pressure,inhibitory effect on inflammation,and sedative and analgesic effects.Its application in general anesthesia may have a positive impact on the quality of anesthesia and postoperative recovery in elderly patients undergoing radical resection of colon cancer.METHODS A total of 165 colon cancer patients who underwent radical surgery for colon cancer under general anesthesia at Qingdao University Affiliated Haici Hospital,Qingdao,China were recruited and divided into two groups:A and B.In group A,Dex was administered 30 min before surgery,while group B received an equivalent amount of normal saline.The hemodynamic changes,pulmonary compliance,airway pressure,inflammatory factors,confusion assessment method scores,Ramsay Sedation-Agitation Scale scores,and cellular immune function indicators were compared between the two groups.RESULTS Group A showed less intraoperative hemodynamic fluctuations,better pulmonary compliance,and lower airway resistance compared with group B.Twelve hours after the surgery,the serum levels of TLR-2,TLR-4,IL-6,and TNF-αin group A were significantly lower than those of group B(P<0.05).After extubation,the Ramsay Sedation-Agitation Scale score of group A patients was significantly higher than that of group B patients,indicating a higher level of sedation.The incidence of delirium was significantly lower in group A than in group B(P<0.05).CONCLUSION The use of Dex as an adjunct to general anesthesia for radical surgery in elderly patients with colon cancer results in better effectiveness of anesthesia. 展开更多
关键词 DEXMEDETOMIDINE General anesthesia ELDERLY Colon cancer radical surgery Anesthesia effectiveness DELIRIUM cellular immunity
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Roles of Tregs in development of hepatocellular carcinoma:A meta-analysis 被引量:5
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作者 Hong-Qiang Zhao Wei-Min Li +1 位作者 Zhong-Qiou Lu Yong-Ming Yao 《World Journal of Gastroenterology》 SCIE CAS 2014年第24期7971-7978,共8页
AIM: To assess systematically the association between regulatory T cells (Tregs) and hepatocellular carcinoma (HCC).
关键词 Hepatocellular carcinoma Regulatory T cells META-ANALYSIS Tumor escape cellular immunity
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TfR1 Extensively Regulates the Expression of Genes Associated with Ion Transport and Immunity 被引量:4
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作者 Nan HUANG Lei-Lei ZHAN +4 位作者 Yi CHENG Xiao-long WANG Ya-xun WEI Qi WANG Wen-jing LI 《Current Medical Science》 SCIE CAS 2020年第3期493-501,共9页
Transferrin receptor 1(TfR1),encoded by the TFRC gene,is the gatekeeper of cellular iron uptake for cells.A variety of molecular mechanisms are at work to tightly regulate TfR1 expression,and abnormal TfR1 expression ... Transferrin receptor 1(TfR1),encoded by the TFRC gene,is the gatekeeper of cellular iron uptake for cells.A variety of molecular mechanisms are at work to tightly regulate TfR1 expression,and abnormal TfR1 expression has been associated with various diseases.In the current study,to determine the regulation pattern of TfR1,we cloned and overexpressed the human TFRC gene in HeLa cells.RNA-sequencing(RNA-seq)was used to analyze the global transcript levels in overexpressed(OE)and normal control(NC)samples.A total of 1669 differentially expressed genes(DEGs)were identified between OE and NC.Gene ontology(GO)analysis was carried out to explore the functions of the DEGs.It was found that multiple DEGs were associated with ion transport and immunity.Moreover,the regulatory network was constructed on basis of DEGs associated with ion transport and immunity,highlighting that TFRC was the node gene of the network.These results together suggested that precisely controlled TfR1 expression might be not only essential for iron homeostasis,but also globally important for cell physiology,including ion transport and immunity. 展开更多
关键词 transferrin receptor 1 OVEREXPRESSION RNA-SEQ differentially expressed genes ion transport cellular immunity
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Role of autoimmunity in primary biliary cirrhosis 被引量:8
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作者 Tian-Yan Shi Feng-Chun Zhang 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第48期7141-7148,共8页
Primary biliary cirrhosis(PBC) is an autoimmune liver disease characterized by the presence of serum autoantibodies and chronic nonsuppurative destructive cholangitis.The pathogenesis of PBC involves environmental fac... Primary biliary cirrhosis(PBC) is an autoimmune liver disease characterized by the presence of serum autoantibodies and chronic nonsuppurative destructive cholangitis.The pathogenesis of PBC involves environmental factors,genetic predisposition and loss of immune tolerance.In recent years,it has become univocally accepted that an inappropriately activated immune response is one of the most important factors in PBC.In this study,the role of autoimmunity in PBC is summarized and a feasible research orientation is recommended. 展开更多
关键词 Primary biliary cirrhosis Autoimmunity Humoral immunity cellular immunity Nonspecific immunity
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HPV16E7-HSP70 Hybrid DNA Vaccine Induces E7-Specific Cytotoxic T Cells and Antitumor Immunity 被引量:2
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作者 ZHU Liqin LI Hui XIONG Jinhu WANG Tongxiang OU Xuan WEI Yun WU Xinxing 《Wuhan University Journal of Natural Sciences》 CAS 2006年第3期749-755,共7页
Using human papillomavirus type 16 (HPV16) E7 as an antigen and Heat Shock Protein 70 as adjuvant, we constructed a DNA vaccine by linking HSP70 gene to E7^C91G; gene. Mice, after being immunized with E7^C91G;-HSP70... Using human papillomavirus type 16 (HPV16) E7 as an antigen and Heat Shock Protein 70 as adjuvant, we constructed a DNA vaccine by linking HSP70 gene to E7^C91G; gene. Mice, after being immunized with E7^C91G;-HSP70, E7^C91G/HSP70, E7^C91G, and wild E7 DNA vaccines respectively, produced E7 specific CD8^+ T-cell precursor frequencies of 280.33±2.52, 144.34±4.04, 164.34±5.13 and 82.33±3.51 respectively within every 1 × 10^5 mouse splenocytes. This proves that E7^C91G-HSP70 fusion vaccine can significantly enhance the E7 specific cellular immunity within the mice body(p〈0. 01). After being immunized with E7^C91G-HSP70 fusion vaccine, tumor-bearing mice of the group being treated have significantly longer latency and survival periods, comparing with other three categories of E7 vaccines. Experiment shows that this vaccine has a significant effect on enhancing E7 positive tumor-treatment within mice body. After being immunized with E7^C91G-HSP70 vaccine, there were no pathological changes found in livers, kidneys and spleens of the mice, which proves that the vaccine is quite safe. After all, E7^C91G-HSP70 fusion vaccine has a much stronger tumor- treatment effect than thai of wild type E7 DNA vaccine. 展开更多
关键词 human papillomavirus type 16 (HPV16) E7 gene DNA vaccine cellular immunity
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Functional identification of C-type lectin in the diamondback moth,Plutella xylostella(L.)innate immunity 被引量:1
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作者 LI Jin-yang LIN Jun-han +3 位作者 G.Mandela FERNANDEZ-GRANDON ZHANG Jia-yu YOU Min-sheng XIA Xiao-feng 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第12期3240-3255,共16页
C-type lectins(CTLs)are a superfamily of Ca^(2+)-dependent carbohydrate-recognition proteins,and an important pattern recognition receptor(PRR)in insect innate immunity which can mediate humoral and cellular immunity ... C-type lectins(CTLs)are a superfamily of Ca^(2+)-dependent carbohydrate-recognition proteins,and an important pattern recognition receptor(PRR)in insect innate immunity which can mediate humoral and cellular immunity in insects.In this study,we report a novel dual carbohydrate-recognition domain(CRD)CTL from Plutella xylostella which we designate PxIML.PxIML is a protein with a 969 bp open reading frame(ORF)encoding 322 amino acids,containing a signal peptide and a dual-CRD with EPN(Glu_(124)-Pro_(125)-Asn_(126))and QPD(Gln_(274)-Pro_(275)-Asp_(276))motifs.The expression of PxIML mRNA in the fat body was significantly higher than in hemocytes and midgut.The relative expression levels of PxIML in the whole insect and the fat body were significantly inhibited after infection with Bacillus thuringiensis 8010(Bt8010)at 18 h,while they were significantly upregulated after infection with Serratia marcescens IAE6 or Pichia pastoris.The recombinant PxIML(rPxIML)protein could bind to the tested pathogen-associated molecular patterns(PAMPs),and the bacteria of Enterobacter sp.IAE5,S.marcescens IAE6,Staphylococcus aureus,Escherichia coli BL21,and Bt8010 in a Ca^(2+)-dependent manner,however,it showed limited binding to the fungus,P.pastoris.The rPxIML exhibited strong activity in the presence of Ca^(2+) to agglutinate Bt8010,Enterobacter sp.IAE5 and S.aureus,but it only weakly agglutinated with E.coli BL21,and could not agglutinate with S.marcescens IAE6 or P.pastoris.Furthermore,the rPxIML could bind to hemocytes,promote the adsorption of hemocytes to beads,and enhance the phenoloxidase(PO)activity and melanization of P.xylostella.Our results suggest that PxIML plays an important role in pathogen recognition and in mediating subsequent humoral and cellular immunity of P.xylostella. 展开更多
关键词 diamondback moth humoral and cellular immunity C-type lectin pattern recognition receptors carbohydrate-recognition domain
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Efficient Humoral and Cellular Immune Responses Induced by a Chimeric Virus-like Particle Displaying the Epitope of EV71 without Adjuvant 被引量:1
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作者 LIANG Pu YI Yao +4 位作者 SU Qiu Dong QIU Feng FAN Xue Ting LU Xue Xin BI Sheng Li 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2018年第5期343-350,共8页
Objective To eliminate the side effects of aluminum adjuvant and His-tag,we constructed chimeric VLPs displaying the epitope of EV71(SP70) without His-tagged.Then evaluating whether the VLPs could efficiently evoke ... Objective To eliminate the side effects of aluminum adjuvant and His-tag,we constructed chimeric VLPs displaying the epitope of EV71(SP70) without His-tagged.Then evaluating whether the VLPs could efficiently evoke not only humoral but also cellular immune responses against EV71 without adjuvant.Methods The fusion protein was constructed by inserting SP70 into the MIR of truncated HBc Ag sequence,expressed in E.Coli,and purified through ion exchange chromatography and density gradient centrifugation.Mice were immunized with the VLPs and sera were collected afterwards.The specific antibody titers,Ig G subtypes and neutralizing efficacy were detected by ELISA,neutralization assay,and EV71 lethal challenge.IFN-γ and IL-4 secreted by splenocytes were tested by ELISPOT assay.Results HBc-SP70 proteins can self-assemble into empty VLPs.After immunization with HBc-SP70 VLPs,the detectable anti-EV71 antibodies were effective in neutralizing EV71 and protected newborn mice from EV71 lethal challenge.There was no significant difference for the immune efficacy whether the aluminum adjuvant was added or not.The specific Ig G subtypes were mainly IgG1 and IgG2 b and splenocytes from the mice immunized produced high levels of IFN-γ and IL-4.Conclusion The fusion proteins without His-tagged was expressed and purified as soluble chimeric HBc-SP70 VLPs without renaturation.In the absence of adjuvant,they were efficient to elicit high levels of Th1/Th2 mixed immune response as well as assisted by aluminum adjuvant.Furthermore,the chimeric VLPs have potential to prevent HBV and EV71 infection simultaneously. 展开更多
关键词 Virus-like particles Enterovirus 71 Neutralizing antibody Humoral and cellular immunity ADJUVANT VACCINE
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EFFECTS OF REINFORCED DECOCTION OF ANGELICAE SINENSIS FOR ENRICHING BLOOD ON THE IMMUNITY OF IMMUNOSUPPRESSED MICE 被引量:2
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作者 李选社 薛晚利 +2 位作者 郝炳华 刘伟 石兴民 《Academic Journal of Xi'an Jiaotong University》 2001年第1期36-38,共3页
Objective To investigate the effect of reinforced Decoction of Angelicae Sinensis for enriching blood (RDAEB) on the immunity of immunosuppressed mice induced by cyclophosphamide (Cy). Methods Mice were given RDAEB th... Objective To investigate the effect of reinforced Decoction of Angelicae Sinensis for enriching blood (RDAEB) on the immunity of immunosuppressed mice induced by cyclophosphamide (Cy). Methods Mice were given RDAEB through stomach perfusion for 10 d (50 mg/d). Then, RBC-C3bR rate,RBC-IC rate (as the index- es of erythrocyte immunity)and E-rosette forming rate,acidic a-naphthyl acetate esterase positive rate, lymphocyte transformation rate (as the indexes of cellular immunity) of mice were tested. Results RBC-C3Br rate, RBC-IC rat- e,E-rosette forming rate, acidic α-naphthyl acetate esterase positive rate and lymphocyte transformation rate in the Cy-RDAEB group were markedly higher than those in the Cy group (P<0.0l),and returned to the levels of normal group. Conclusion RDAEB is effective in recovering and enhancing cellular and erythrocyte immunity of immuno- suppressed mice. 展开更多
关键词 reinforced decoction of Angelicae Sinensis for Enriching Blood cellular immunity erythrocytie immunity cyclophosphamide immunosuppressed
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Effect of Different Oligosaccharides on Immunity and Production Performance of Piglets 被引量:1
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作者 LI Mei LIU Wen-li +5 位作者 ZHAO Gui-ying YU Li-ming WU Yong-hao WU Yan-fen PAN Zi-qiang SHEN Zhi-hua 《Animal Husbandry and Feed Science》 CAS 2010年第8期9-11,共3页
[ Objective] To study the effects of different oligosaccharides on immunity and production performance of piglets.[ Method] A total of 75 Yorkshire x Rongchang piglets were assigned into five groups, 15 in each group.... [ Objective] To study the effects of different oligosaccharides on immunity and production performance of piglets.[ Method] A total of 75 Yorkshire x Rongchang piglets were assigned into five groups, 15 in each group. Isomalto-oligosaccharide ( IMO), fructo-oligosaccharide ( FOS), mannan-oligosacchadde (MOS), and mixed oligosacchadde were supplemented to basal diet (7.5 g/kg), respectively. The control group was also set. The experimental period lasted for 53 d. The clinic symptoms and diarrhea were observed. All piglets were weighed once a week. Feed intake was also recorded. Blood was collected via precaval vein for determination of immunology indexes at the age of 30 and 60 d, respectively. [ Result] The IMO and FOS enhanced cellular immunity of 30-day-old piglets significantly (P 〈 0.05), and the IMO also enhanced their humoral immunity. The MOS enhanced cellular immunity and humoral immunity of 60-day-old piglets significantly (P 〈 0.05). It also improved production performance largest, and its diarrhea rate was the lowest. [ Conclusion] Different oligosaccharides have various effects on immunity and production performance of oiolets. 展开更多
关键词 OLIGOSACCHARIDES PIGLETS cellular immunity Humoral immunity
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THE HUMORAL AND CELLULAR IMMUNE RESPONSES INDUCED BY HPV18L1-E6/E7 DNA VACCINES IN MICE
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作者 杨谨 李旭 +2 位作者 李昂 王一理 司履生 《Journal of Pharmaceutical Analysis》 SCIE CAS 2006年第1期44-48,77,共6页
Objective To construct eukaryotic expression vector of HPV18 L1-E6, E7 chimeric gene and examine the humoral and cellular immune responses induced by this DNA vaccines in mice. Methods The C-terminal of major capsid p... Objective To construct eukaryotic expression vector of HPV18 L1-E6, E7 chimeric gene and examine the humoral and cellular immune responses induced by this DNA vaccines in mice. Methods The C-terminal of major capsid protein L1 gene and mutant zinc finger domains of early E6/7 oncogenes in HPV18 were integrated and inserted into eukaryotic expression vector pVAX1 to generate vaccines pVAX1-L1E6Mxx, E7Mxx. CHO cells were transiently transfected with the individual construct. Target protein expressions in the lysate of the transfected cells were measured by ELISA and immunocytochemistry. After BALB/c mice were vaccinated with various recombinant plasmids(pVAX1-L1-E6M3 or pVAX1-L1-E7M3) and immunie adjuvants (pLXHDmB7-2 or LTB) through different administration routes (intramuscular or intranasal) , the great cellular immune responses were produced as revealed by delayed-type hypersensitivity (DTH) and lymphocyte proliferation, and the expression of IL-4 and IFN-γ cells in CD4 + and CD8 + subpopulations. Results The highly efficient expression of pVAX1-L1E6Mxx, E7Mxx vector in host eukaryotic cells were demonstrated both by ELISA and immunocytochemistry. The level of specific serum IgG against HPV in experiment groups mice was much higher than that of control group, and intranuscular immunization group had the highest antibody level. Intramuscular immunization groups were superior to intranasal immunization groups in DTH response, splenocyte proliferation and CD8+ IFN-γ + cells number, but CD4 + IL4 + cell number was higher in intranasal immunization groups. The immunization groups using pLXHDmB7-2 as adjuvant were superior to other groups in immunoresponse. Conclusion These DNA vaccines produce remarkable cellular and humoral immune responses in the mouse and may provide as prophylatic and therapeutic candidates for HPV induced cancer treatment. 展开更多
关键词 human papilomavirus type 18 DNA vaccine site-directed mutation humoral immunity cellular immunity
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