期刊文献+
共找到82,127篇文章
< 1 2 250 >
每页显示 20 50 100
高通量TCR免疫组库技术在艾滋病中的应用及前景分析
1
作者 任莹珂 李杰 +3 位作者 许前磊 李强 王露 桑锋 《中国免疫学杂志》 CAS CSCD 北大核心 2024年第7期1565-1568,F0003,共5页
T细胞受体(TCR)免疫组库是机体所有TCR的总和,TCR免疫组库的多样性与HIV识别和免疫逃逸密切相关。高通量免疫组库测序技术能够检测分析TCR组库的所有序列,真实反映所有TCR的遗传信息,全面揭示TCR组库的复杂性和多样性。通过高通量测序... T细胞受体(TCR)免疫组库是机体所有TCR的总和,TCR免疫组库的多样性与HIV识别和免疫逃逸密切相关。高通量免疫组库测序技术能够检测分析TCR组库的所有序列,真实反映所有TCR的遗传信息,全面揭示TCR组库的复杂性和多样性。通过高通量测序技术分析TCR免疫组库变化可监测HIV患者诊疗情况、疾病进展及预后,同时有助于疫苗研发、病毒库清除及临床疗效评价,从而为丰富HIV/AIDS防治思路和靶点提供依据。 展开更多
关键词 高通量tcr免疫组库技术 HIV AIDS
下载PDF
Are TrkB receptor agonists the right tool to fulfill the promises for a therapeutic value of the brain-derived neurotrophic factor? 被引量:4
2
作者 Marta Zagrebelsky Martin Korte 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第1期29-34,共6页
Brain-derived neurotrophic factor signaling via its receptor tro pomyosin receptor kinase B regulates several crucial physiological processes.It has been shown to act in the brain,promoting neuronal survival,growth,an... Brain-derived neurotrophic factor signaling via its receptor tro pomyosin receptor kinase B regulates several crucial physiological processes.It has been shown to act in the brain,promoting neuronal survival,growth,and plasticity as well as in the rest of the body where it is involved in regulating for instance aspects of the metabolism.Due to its crucial and very pleiotro pic activity,reduction of brain-derived neurotrophic factor levels and alterations in the brain-derived neurotrophic factor/tropomyosin receptor kinase B signaling have been found to be associated with a wide spectrum of neurological diseases.Howeve r,because of its poor bioavailability and pharmacological properties,brain-derived neurotrophic factor itself has a very low therapeutic value.Moreover,the concomitant binding of exogenous brain-derived neurotrophic factor to the p75 neurotrophin receptor has the potential to elicit several unwanted and deleterious side effects.Therefo re,developing tools and approaches to specifically promote tropomyosin receptor kinase B signaling has become an important goal of translational research.Among the newly developed tools are different categories of tropomyosin receptor kinase B receptor agonist molecules.In this review,we give a comprehensive description of the diffe rent tro pomyosin receptor kinase B receptor agonist drugs developed so far and of the res ults of their application in animal models of several neurological diseases.Moreover,we discuss the main benefits of tropomyosin receptor kinase B receptor agonists,concentrating especially on the new tropomyosin receptor kinase B agonist antibodies.The benefits observed both in vitro and in vivo upon application of tropomyosin receptor kinase B receptor agonist drugs seem to predominantly depend on their general neuroprotective activity and their ability to promote neuronal plasticity.Moreover,tro pomyosin receptor kinase B agonist antibodies have been shown to specifically bind the tropomyosin receptor kinase B receptor and not p75 neurotrophin receptor.Therefore,while,based on the current knowledge,the tropomyosin receptor kinase B receptor agonists do not seem to have the potential to reve rse the disease pathology per se,promoting brainderived neurotrophic factor/tro pomyosin receptor kinase B signaling still has a very high therapeutic relevance. 展开更多
关键词 Alzheimer's disease brain-derived neurotrophic factor DEPRESSION Parkinson's disease tropomyosin receptor kinase B receptor
下载PDF
基于TCR模型的台风极值降雨强度预测
3
作者 王荣 黄文锋 《合肥工业大学学报(自然科学版)》 CAS 北大核心 2024年第3期406-410,427,共6页
近些年台风带来的强降雨与洪水灾害给沿海城市造成严重的经济损失和人员伤亡,极端降雨环境多数是在台风作用下产生的,且极值降雨强度是城市防洪排涝、排水规划和工程设计的雨量计算依据。为更加合理准确地预测极值降雨,文章引入热带气... 近些年台风带来的强降雨与洪水灾害给沿海城市造成严重的经济损失和人员伤亡,极端降雨环境多数是在台风作用下产生的,且极值降雨强度是城市防洪排涝、排水规划和工程设计的雨量计算依据。为更加合理准确地预测极值降雨,文章引入热带气旋降雨(tropical cyclone rainfall,TCR)模型,利用蒙特卡罗(Monte Carlo)技术模拟香港地区的极值降雨强度。对比相关规范与历史数据,该方法能较好地预测极值降雨强度,为后续台风降雨灾害危险性分析和排水工程建设研究提供一定的参考。 展开更多
关键词 台风 热带气旋降雨(tcr)模型 极值降雨强度 蒙特卡罗(Monte Carlo)技术
下载PDF
单细胞TCR测序在肿瘤免疫治疗中的应用
4
作者 戴薇(综述) 蒋敬庭 周游(审阅) 《中国肿瘤生物治疗杂志》 CAS CSCD 北大核心 2024年第8期821-826,共6页
T细胞受体(TCR)序列可作为分辨T细胞特异性的唯一标签,因其多样性的特征,在特定时间内个体循环系统中所有TCR构成的TCR组库可以反映个体的抗肿瘤免疫状态。单细胞TCR测序技术能够在单细胞水平上检测编码TCR双链的基因序列和表达量等信息... T细胞受体(TCR)序列可作为分辨T细胞特异性的唯一标签,因其多样性的特征,在特定时间内个体循环系统中所有TCR构成的TCR组库可以反映个体的抗肿瘤免疫状态。单细胞TCR测序技术能够在单细胞水平上检测编码TCR双链的基因序列和表达量等信息,包括获得TCR的α链和β链的配对信息,从而在细胞水平上更为准确地探索TCR组库的异质性,还可结合其他技术将TCR序列与基因组、转录组、蛋白质组等多组学信息成套配对,精准展现细胞水平上的多角度信息。因该技术具有高通量、高分辨率的优势而被广泛应用于肿瘤免疫治疗相关研究,为探索TME中T细胞功能、发展T细胞受体工程化T细胞(TCR-T)疗法、预测免疫检查点抑制剂(ICI)疗效等提供重要依据,成为重要的筛选工具,期待该技术的发展使更多肿瘤患者受益。 展开更多
关键词 单细胞tcr测序 文库构建 肿瘤免疫治疗 肿瘤微环境 T细胞受体工程化T细胞 免疫检查点抑制剂
下载PDF
Role of bitter contributors and bitter taste receptors:a comprehensive review of their sources,functions and future development 被引量:1
5
作者 Xinyue Zhou Han Wang +6 位作者 Ming Huang Jin Chen Jianle Chen Huan Cheng Xingqian Ye Wenjun Wang Donghong Liu 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第4期1806-1824,共19页
Bitterness,one of the 5“basic tastes”,is usually undesired by humans.However,abundant literature reported that bitter fruits and vegetables have beneficial health effects due to their bitter contributors.This review... Bitterness,one of the 5“basic tastes”,is usually undesired by humans.However,abundant literature reported that bitter fruits and vegetables have beneficial health effects due to their bitter contributors.This review provided an updated overview of the main bitter contributors of typical bitter fruits and vegetables and their health benefits.The main bitter contributors,including phenolics,terpenoids,alkaloids,amino acids,nucleosides and purines,were summarized.The bioactivities and wide range of beneficial effects of them on anti-cancers,anti-inflammations,anti-microbes,neuroprotection,inhibiting chronic and acute injury in organs,as well as regulating behavior performance and metabolism were reported.Furthermore,not only did the bitter taste receptors(taste receptor type 2 family,T2Rs)show taste effects,but extra-oral T2Rs could also be activated by binding with bitter components,regulating physiological activities via modulating hormone secretion,immunity,metabolism,and cell proliferation.This review provided a new perspective on exploring and explaining the nutrition of bitter foods,revealing the relationship between the functions of bitter contributors from food and T2Rs.Future trends may focus on revealing the possibility of T2Rs being targets for the treatment of diseases,exploring the mechanism of T2Rs mediating the bioactivities,and making bitter foods more acceptable without getting rid of bitter contributors. 展开更多
关键词 Bitter contributors Bitter taste receptor Health benefits FRUITS VEGETABLES
下载PDF
Precision targeting in hepatocellular carcinoma:Exploring ligandreceptor mediated nanotherapy 被引量:1
6
作者 Xia-Qing Zhou Ya-Ping Li Shuang-Suo Dang 《World Journal of Hepatology》 2024年第2期164-176,共13页
Hepatocellular carcinoma(HCC)is the most common primary liver cancer and poses a major challenge to global health due to its high morbidity and mortality.Conventional chemotherapy is usually targeted to patients with ... Hepatocellular carcinoma(HCC)is the most common primary liver cancer and poses a major challenge to global health due to its high morbidity and mortality.Conventional chemotherapy is usually targeted to patients with intermediate to advanced stages,but it is often ineffective and suffers from problems such as multidrug resistance,rapid drug clearance,nonspecific targeting,high side effects,and low drug accumulation in tumor cells.In response to these limitations,recent advances in nanoparticle-mediated targeted drug delivery technologies have emerged as breakthrough approaches for the treatment of HCC.This review focuses on recent advances in nanoparticle-based targeted drug delivery systems,with special attention to various receptors overexpressed on HCC cells.These receptors are key to enhancing the specificity and efficacy of nanoparticle delivery and represent a new paradigm for actively targeting and combating HCC.We comprehensively summarize the current understanding of these receptors,their role in nanoparticle targeting,and the impact of such targeted therapies on HCC.By gaining a deeper understanding of the receptor-mediated mechanisms of these innovative therapies,more effective and precise treatment of HCC can be achieved. 展开更多
关键词 TARGETING Hepatocellular carcinoma receptor NANOMEDICINE CHEMOTHERAPY
下载PDF
TCR DNA疫苗在自身免疫病中的研究进展
7
作者 张俊宁 王广宇 +1 位作者 欧明林 侯显良 《中国免疫学杂志》 CAS CSCD 北大核心 2024年第6期1292-1296,共5页
自身免疫病(AID)是由于机体对自身抗原失去耐受,免疫系统攻击自身组织或细胞引起组织器官或细胞损伤,并出现一定临床表现的疾病。研究证明,在AID的治疗中,致病性T细胞可以被TCR疫苗选择性抑制或杀伤,应用前景很广阔。本文从TCR疫苗的作... 自身免疫病(AID)是由于机体对自身抗原失去耐受,免疫系统攻击自身组织或细胞引起组织器官或细胞损伤,并出现一定临床表现的疾病。研究证明,在AID的治疗中,致病性T细胞可以被TCR疫苗选择性抑制或杀伤,应用前景很广阔。本文从TCR疫苗的作用机制、相关疾病以及疫苗的安全性等方面,对其在AID领域的研究现状进行简要综述。 展开更多
关键词 tcr tcr DNA疫苗 自身免疫病
下载PDF
Transient receptor potential channels as predictive marker and potential indicator of chemoresistance in colon cancer 被引量:1
8
作者 WEI HU THOMAS WARTMANN +5 位作者 MARCO STRECKER ARISTOTELIS PERRAKIS ROLAND CRONER ARPAD SZALLASI WENJIE SHI ULF D.KAHLERT 《Oncology Research》 SCIE 2024年第1期227-239,共13页
Transient receptor potential(TRP)channels are strongly associated with colon cancer development and progression.This study leveraged a multivariate Cox regression model on publicly available datasets to construct a TR... Transient receptor potential(TRP)channels are strongly associated with colon cancer development and progression.This study leveraged a multivariate Cox regression model on publicly available datasets to construct a TRP channels-associated gene signature,with further validation of signature in real world samples from our hospital treated patient samples.Kaplan-Meier(K-M)survival analysis and receiver operating characteristic(ROC)curves were employed to evaluate this gene signature’s predictive accuracy and robustness in both training and testing cohorts,respectively.Additionally,the study utilized the CIBERSORT algorithm and single-sample gene set enrichment analysis to explore the signature’s immune infiltration landscape and underlying functional implications.The support vector machine algorithm was applied to evaluate the signature’s potential in predicting chemotherapy outcomes.The findings unveiled a novel three TRP channels-related gene signature(MCOLN1,TRPM5,and TRPV4)in colon adenocarcinoma(COAD).The ROC and K-M survival curves in the training dataset(AUC=0.761;p=1.58e-05)and testing dataset(AUC=0.699;p=0.004)showed the signature’s robust predictive capability for the overall survival of COAD patients.Analysis of the immune infiltration landscape associated with the signature revealed higher immune infiltration,especially an increased presence of M2 macrophages,in high-risk group patients compared to their low-risk counterparts.High-risk score patients also exhibited potential responsiveness to immune checkpoint inhibitor therapy,evident through increased CD86 and PD-1 expression profiles.Moreover,the TRPM5 gene within the signature was highly expressed in the chemoresistance group(p=0.00095)and associated with poor prognosis(p=0.036)in COAD patients,highlighting its role as a hub gene of chemoresistance.Ultimately,this signature emerged as an independent prognosis factor for COAD patients(p=6.48e-06)and expression of model gene are validated by public data and real-world patients.Overall,this bioinformatics study provides valuable insights into the prognostic implications and potential chemotherapy resistance mechanisms associated with TRPs-related genes in colon cancer. 展开更多
关键词 Colon cancer Transient receptor potential channels Prognostic signature Chemotherapy efficiency TRPM5
下载PDF
PRaG 3.0 therapy for human epidermal growth factor receptor 2-positive metastatic pancreatic ductal adenocarcinoma:A case report 被引量:2
9
作者 Yue-Hong Kong Mei-Ling Xu +10 位作者 Jun-Jun Zhang Guang-Qiang Chen Zhi-Hui Hong Hong Zhang Xiao-Xiao Dai Yi-Fu Ma Xiang-Rong Zhao Chen-Yang Zhang Rong-Zheng Chen Peng-Fei Xing Li-Yuan Zhang 《World Journal of Gastroenterology》 SCIE CAS 2024年第9期1237-1249,共13页
BACKGROUND Pancreatic ductal adenocarcinoma(PDAC)is a highly fatal disease with limited effective treatment especially after first-line chemotherapy.The human epidermal growth factor receptor 2(HER-2)immunohistochemis... BACKGROUND Pancreatic ductal adenocarcinoma(PDAC)is a highly fatal disease with limited effective treatment especially after first-line chemotherapy.The human epidermal growth factor receptor 2(HER-2)immunohistochemistry(IHC)positive is associated with more aggressive clinical behavior and shorter overall survival in PDAC.CASE SUMMARY We present a case of multiple metastatic PDAC with IHC mismatch repair proficient but HER-2 IHC weakly positive at diagnosis that didn’t have tumor regression after first-line nab-paclitaxel plus gemcitabine and PD-1 inhibitor treatment.A novel combination therapy PRaG 3.0 of RC48(HER2-antibody-drug conjugate),radio-therapy,PD-1 inhibitor,granulocyte-macrophage colony-stimulating factor and interleukin-2 was then applied as second-line therapy and the patient had confirmed good partial response with progress-free-survival of 6.5 months and overall survival of 14.2 month.She had not developed any grade 2 or above treatment-related adverse events at any point.Percentage of peripheral CD8^(+) Temra and CD4^(+) Temra were increased during first two activation cycles of PRaG 3.0 treatment containing radiotherapy but deceased to the baseline during the maintenance cycles containing no radiotherapy.CONCLUSION PRaG 3.0 might be a novel strategy for HER2-positive metastatic PDAC patients who failed from previous first-line approach and even PD-1 immunotherapy but needs more data in prospective trials. 展开更多
关键词 Pancreatic ductal adenocarcinoma PRaG 3.0 therapy Human epidermal growth factor receptor 2 Novel combination therapy Case report
下载PDF
MicroRNA-630 alleviates inflammatory reactions in rats with diabetic kidney disease by targeting toll-like receptor 4 被引量:2
10
作者 Qi-Shun Wu Dan-Na Zheng +3 位作者 Cheng Ji Hui Qian Juan Jin Qiang He 《World Journal of Diabetes》 SCIE 2024年第3期488-501,共14页
BACKGROUND Diabetic kidney disease(DKD)is a major complication of diabetes mellitus.Renal tubular epithelial cell(TEC)damage,which is strongly associated with the inflammatory response and mesenchymal trans-differenti... BACKGROUND Diabetic kidney disease(DKD)is a major complication of diabetes mellitus.Renal tubular epithelial cell(TEC)damage,which is strongly associated with the inflammatory response and mesenchymal trans-differentiation,plays a significant role in DKD;However,the precise molecular mechanism is unknown.The recently identified microRNA-630(miR-630)has been hypothesized to be closely associated with cell migration,apoptosis,and autophagy.However,the association between miR-630 and DKD and the underlying mechanism remain unknown.AIM To investigate how miR-630 affects TEC injury and the inflammatory response in DKD rats.METHODS Streptozotocin was administered to six-week-old male rats to create a hypergly cemic diabetic model.In the second week of modeling,the rats were divided into control,DKD,negative control of lentivirus,and miR-630 overexpression groups.After 8 wk,urine and blood samples were collected for the kidney injury assays,and renal tissues were removed for further molecular assays.The target gene for miR-630 was predicted using bioinformatics,and the association between miR-630 and toll-like receptor 4(TLR4)was confirmed using in vitro investigations and double luciferase reporter gene assays.Overexpression of miR-630 in DKD rats led to changes in body weight,renal weight index,basic blood parameters and histopathological changes.RESULTS The expression level of miR-630 was reduced in the kidney tissue of rats with DKD(P<0.05).The miR-630 and TLR4 expressions in rat renal TECs(NRK-52E)were measured using quantitative reverse transcription polymerase chain reaction.The mRNA expression level of miR-630 was significantly lower in the high-glucose(HG)and HG+mimic negative control(NC)groups than in the normal glucose(NG)group(P<0.05).In contrast,the mRNA expression level of TLR4 was significantly higher in these groups(P<0.05).However,miR-630 mRNA expression increased and TLR4 mRNA expression significantly decreased in the HG+miR-630 mimic group than in the HG+mimic NC group(P<0.05).Furthermore,the levels of tumor necrosis factor-alpha(TNF-α),interleukin-1β(IL-1β),and IL-6 were significantly higher in the HG and HG+mimic NC groups than in NG group(P<0.05).However,the levels of these cytokines were significantly lower in the HG+miR-630 mimic group than in the HG+mimic NC group(P<0.05).Notably,changes in protein expression were observed.The HG and HG+mimic NC groups showed a significant decrease in E-cadherin protein expression,whereas TLR4,α-smooth muscle actin(SMA),and collagen IV protein expression increased(P<0.05).Conversely,the HG+miR-630 mimic group exhibited a significant increase in E-cadherin protein expression and a notable decrease in TLR4,α-SMA,and collagen IV protein expression than in the HG+mimic NC group(P<0.05).The miR-630 targets TLR4 gene expression.In vivo experiments demonstrated that DKD rats treated with miR-630 agomir exhibited significantly higher miR-630 mRNA expression than DKD rats injected with agomir NC.Additionally,rats treated with miR-630 agomir showed significant reductions in urinary albumin,blood glucose,TLR4,and proinflammatory markers(TNF-α,IL-1β,and IL-6)expression levels(P<0.05).Moreover,these rats exhibited fewer kidney lesions and reduced infiltration of inflammatory cells.CONCLUSION MiR-630 may inhibit the inflammatory reaction of DKD by targeting TLR4,and has a protective effect on DKD. 展开更多
关键词 Diabetic kidney disease MicroRNA-630 Toll-like receptor 4 Mouse model Renal tubular epithelial cells damage Hyperglycemic model
下载PDF
Leukocyte immunoglobulin-like receptor B2:A promising biomarker for colorectal cancer 被引量:1
11
作者 Wen-Zhuo Zhao Hong-Gang Wang Xiao-Zhong Yang 《World Journal of Gastroenterology》 SCIE CAS 2024年第4期421-423,共3页
According to the latest global cancer statistics,colorectal cancer(CRC)has emerged as the third most prevalent malignant tumor across the globe.In recent decades,the medical field has implemented several levels of CRC... According to the latest global cancer statistics,colorectal cancer(CRC)has emerged as the third most prevalent malignant tumor across the globe.In recent decades,the medical field has implemented several levels of CRC screening tests,encompassing fecal tests,endoscopic examinations,radiological examinations and blood tests.Previous studies have shown that leukocyte immunoglobulin-like receptor B2(LILRB2)is involved in inhibiting immune cell function,immune evasion,and promoting tumor progression in acute myeloid leukemia and nonsmall cell lung cancer.However,its interaction with CRC has not been reported yet.Recently,a study published in the World Journal of Gastroenterology revealed that LILRB2 and its ligand,angiopoietin-like protein 2,are markedly overexpressed in CRC.This overexpression is closely linked to tumor progression and is indicative of a poor prognosis.The study highlights the potential of utilizing the concentration of LILRB2 in serum as a promising biomarker for tumors.However,there is still room for discussion regarding the data processing and analysis in this research. 展开更多
关键词 Colorectal cancer Leukocyte immunoglobulin-like receptor B2 Angiopoietinlike protein 2 Therapeutic target Noninvasive screening biomarker
下载PDF
Olfactory receptors in neural regeneration in the central nervous system
12
作者 Rafael Franco Claudia Garrigós +3 位作者 Toni Capó Joan Serrano-Marín Rafael Rivas-Santisteban Jaume Lillo 《Neural Regeneration Research》 SCIE CAS 2025年第9期2480-2494,共15页
Olfactory receptors are crucial for detecting odors and play a vital role in our sense of smell,influencing behaviors from food choices to emotional memories.These receptors also contribute to our perception of flavor... Olfactory receptors are crucial for detecting odors and play a vital role in our sense of smell,influencing behaviors from food choices to emotional memories.These receptors also contribute to our perception of flavor and have potential applications in medical diagnostics and environmental monitoring.The ability of the olfactory system to regenerate its sensory neurons provides a unique model to study neural regeneration,a phenomenon largely absent in the central nervous system.Insights gained from how olfactory neurons continuously replace themselves and reestablish functional connections can provide strategies to promote similar regenerative processes in the central nervous system,where damage often results in permanent deficits.Understanding the molecular and cellular mechanisms underpinning olfactory neuron regeneration could pave the way for developing therapeutic approaches to treat spinal co rd injuries and neurodegenerative diseases like Alzheimer's disease.Olfa ctory receptors are found in almost any cell of eve ry orga n/tissue of the mammalian body.This ectopic expression provides insights into the chemical structures that can activate olfactory receptors.In addition to odors,olfactory receptors in ectopic expression may respond to endogenous compounds and molecules produced by mucosal colonizing microbiota.The analysis of the function of olfactory receptors in ectopic expression provides valuable information on the signaling pathway engaged upon receptor activation and the receptor's role in proliferation and cell differentiation mechanisms.This review explo res the ectopic expression of olfa ctory receptors and the role they may play in neural regeneration within the central nervous system,with particular attention to compounds that can activate these receptors to initiate regenerative processes.Evidence suggests that olfactory receptors could serve as potential therapeutic targets for enhancing neural repair and recovery following central nervous system injuries. 展开更多
关键词 adenosine receptors adrenergic receptors ectopic expression G proteincoupled receptors GLIA NEURONS
下载PDF
P2Y1 receptor in Alzheimer’s disease
13
作者 Shan Luo Yifei Wang Tatsuhiro Hisatsune 《Neural Regeneration Research》 SCIE CAS 2025年第2期440-453,共14页
Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated tau.Targeting amyloid-beta plaques has b... Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated tau.Targeting amyloid-beta plaques has been a primary direction for developing Alzheimer’s disease treatments in the last decades.However,existing drugs targeting amyloid-beta plaques have not fully yielded the expected results in the clinic,necessitating the exploration of alternative therapeutic strategies.Increasing evidence unravels that astrocyte morphology and function alter in the brain of Alzheimer’s disease patients,with dysregulated astrocytic purinergic receptors,particularly the P2Y1 receptor,all of which constitute the pathophysiology of Alzheimer’s disease.These receptors are not only crucial for maintaining normal astrocyte function but are also highly implicated in neuroinflammation in Alzheimer’s disease.This review delves into recent insights into the association between P2Y1 receptor and Alzheimer’s disease to underscore the potential neuroprotective role of P2Y1 receptor in Alzheimer’s disease by mitigating neuroinflammation,thus offering promising avenues for developing drugs for Alzheimer’s disease and potentially contributing to the development of more effective treatments. 展开更多
关键词 ASTROCYTES NEUROINFLAMMATION P2Y1 receptor purinergic receptor
下载PDF
基于双模块卷积神经网络的TCR-多肽结合位点预测
14
作者 高媛 鲁曼曼 +1 位作者 林勇 谢鹭 《软件工程》 2024年第5期51-55,共5页
TCR(T细胞受体)-多肽结合位点的准确预测对免疫治疗和相关药物发现具有重要意义。文章综合多个文献及数据库整理了一个TCR-多肽结合位点数据集,并引入了一种基于卷积神经网络的预测方法Propep-TCR。该方法综合考虑了输入TCR的序列特征... TCR(T细胞受体)-多肽结合位点的准确预测对免疫治疗和相关药物发现具有重要意义。文章综合多个文献及数据库整理了一个TCR-多肽结合位点数据集,并引入了一种基于卷积神经网络的预测方法Propep-TCR。该方法综合考虑了输入TCR的序列特征和结构特征,通过采用残基可变滑动窗口方法提取每个目标残基的特征向量。为解决数据集中正负样本不平衡的问题,还采用了改进的损失函数和过采样技术。实验结果表明,Propep-TCR可以成功预测出TCR序列中的潜在结合位点,取得了优于传统算法的性能,其预测准确度达到0.98,AUROC达到了0.95。 展开更多
关键词 卷积神经网络 结合位点预测 tcr-多肽相互作用 深度学习
下载PDF
Soluble p75 neurotrophic receptor as a reliable biomarker in neurodegenerative diseases: what is the evidence? 被引量:1
15
作者 Georges Jourdi Samuel Fleury +1 位作者 Imane Boukhatem Marie Lordkipanidzé 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第3期536-541,共6页
Neurodegenerative diseases are often misdiagnosed,especially when the diagnosis is based solely on clinical symptoms.The p75 neurotrophic receptor(p75^(NTR))has been studied as an index of sensory and motor nerve deve... Neurodegenerative diseases are often misdiagnosed,especially when the diagnosis is based solely on clinical symptoms.The p75 neurotrophic receptor(p75^(NTR))has been studied as an index of sensory and motor nerve development and maturation.Its cleavable extracellular domain(ECD)is readily detectable in various biological fluids including plasma,serum and urine.There is evidence for increased p75NTR ECD levels in neurodegenerative diseases such as Alzheimer’s disease,amyotrophic lateral sclerosis,age-related dementia,schizophrenia,and diabetic neuropathy.Whether p75^(NTR) ECD could be used as a biomarker for diagnosis and/or prognosis in these disorders,and whether it could potentially lead to the development of targeted therapies,remains an open question.In this review,we present and discuss published studies that have evaluated the relevance of this emerging biomarker in the context of various neurodegenerative diseases.We also highlight areas that require further investigation to better understand the role of p75^(NTR) ECD in the clinical diagnosis and management of neurodegenerative disorders. 展开更多
关键词 Alzheimer’s disease amyotrophic lateral sclerosis BIOMARKER DEMENTIA diabetic neuropathy nerve growth factor receptor(NGFR) NEURODEGENERATION p75^(NTR) schizophrenia
下载PDF
Melanocortin 3,5 receptors immunohistochemical expression in colonic mucosa of inflammatory bowel disease patients:A matter of disease activity?
16
作者 Antonietta Gerarda Gravina Iacopo Panarese +7 位作者 Maria Consiglia Trotta Michele D'Amico Raffaele Pellegrino Franca Ferraraccio Marilena Galdiero Roberto Alfano Paolo Grieco Alessandro Federico 《World Journal of Gastroenterology》 SCIE CAS 2024年第9期1132-1142,共11页
BACKGROUND Melanocortin 3 and 5 receptors(i.e.,MC3R and MC5R)belong to the melanocortin family.However,data regarding their role in inflammatory bowel diseases(IBD)are currently unavailable.AIM This study aims to asce... BACKGROUND Melanocortin 3 and 5 receptors(i.e.,MC3R and MC5R)belong to the melanocortin family.However,data regarding their role in inflammatory bowel diseases(IBD)are currently unavailable.AIM This study aims to ascertain their expression profiles in the colonic mucosa of Crohn’s disease(CD)and ulcerative colitis(UC),aligning them with IBD disease endoscopic and histologic activity.METHODS Colonic mucosal biopsies from CD/UC patients were sampled,and immunohisto-chemical analyses were conducted to evaluate the expression of MC3R and MC5R.Colonic sampling was performed on both traits with endoscopic scores(Mayo endoscopic score and CD endoscopic index of severity)consistent with inflamed mucosa and not consistent with disease activity(i.e.,normal appearing mucosa).RESULTS In both CD and UC inflamed mucosa,MC3R(CD:+7.7 fold vs normal mucosa,P<0.01;UC:+12 fold vs normal mucosa,P<0.01)and MC5R(CD:+5.5 fold vs normal mucosa,P<0.01;UC:+8.1 fold vs normal mucosa,P<0.01)were significantly more expressed compared to normal mucosa.CONCLUSION MC3R and MC5R are expressed in the colon of IBD patients.Furthermore,expression may differ according to disease endoscopic activity,with a higher degree of expression in the traits affected by disease activity in both CD and UC,suggesting a potential use of these receptors in IBD pharmacology. 展开更多
关键词 Melanocortin 3 receptor Melanocortin 5 receptor Ulcerative colitis Crohn's disease Inflammatory bowel disease
下载PDF
Peroxisome proliferator-activated receptor agonists:A new hope towards the management of alcoholic liver disease
17
作者 Siva Sundara Kumar Durairajan Abhay Kumar Singh Ashok Iyaswamy 《World Journal of Gastroenterology》 SCIE CAS 2024年第35期3965-3971,共7页
In this editorial,we examine a paper by Koizumi et al,on the role of peroxisome proliferator-activated receptor(PPAR)agonists in alcoholic liver disease(ALD).The study determined whether elafibranor protected the inte... In this editorial,we examine a paper by Koizumi et al,on the role of peroxisome proliferator-activated receptor(PPAR)agonists in alcoholic liver disease(ALD).The study determined whether elafibranor protected the intestinal barrier and reduced liver fibrosis in a mouse model of ALD.The study also underlines the role of PPARs in intestinal barrier function and lipid homeostasis,which are both affected by ALD.Effective therapies are necessary for ALD because it is a critical health issue that affects people worldwide.This editorial analyzes the possibility of PPAR agonists as treatments for ALD.As key factors of inflammation and metabolism,PPARs offer multiple methods for managing the complex etiology of ALD.We assess the abilities of PPARα,PPARγ,and PPARβ/δagonists to prevent steatosis,inflammation,and fibrosis due to liver diseases.Recent research carried out in preclinical and clinical settings has shown that PPAR agonists can reduce the severity of liver disease.This editorial discusses the data analyzed and the obstacles,advantages,and mechanisms of action of PPAR agonists for ALD.Further research is needed to understand the efficacy,safety,and mechanisms of PPAR agonists for treating ALD. 展开更多
关键词 Alcoholic liver disease Peroxisome proliferator-activated receptors Peroxisome proliferator-activated receptors agonists Liver fibrosis INFLAMMATION Metabolic regulation HEPATOPROTECTION
下载PDF
On the Impairment of Stress-Induced Changes in Triglyceride Levels via a Sub-Toxic Dose of Unmethylated Cytidine Phosphate Guanosine Oligodinucleotide (a Toll-Like Receptor 9 Ligand)
18
作者 Reiko Seki Kazuhisa Nishizawa 《Journal of Biosciences and Medicines》 2024年第9期95-112,共18页
Changes in lipid metabolism have been implicated in protection against infectious diseases. In the first experiment of this study, we measured clinical lipid parameters in a murine model where the unmethylated cytidin... Changes in lipid metabolism have been implicated in protection against infectious diseases. In the first experiment of this study, we measured clinical lipid parameters in a murine model where the unmethylated cytidine phosphate guanosine (CpG) oligodinucleotide (ODN1826), a Toll-like receptor 9 (TLR9) agonist was administered in combination with D-galactosamine (GalN) that caused relatively liver-specific inflammation and toxicity. In the control mice group injected with phosphate-buffered saline (PBS) (acute psychological stress model associated with blood sampling), the serum triglyceride (TG) levels showed a rapid decrease followed by a rebound at 24 h as we have recently reported. However, such a TG rebound was impaired in the CpG/GalN- and solely CpG-treated groups of mice despite an absence of liver injury based on serum alanine aminotransferase levels in the latter group. Thus, the stress-associated serum TG rebound was abrogated by the injection of a sub-hepatotoxic CpG dose. In the second experiment, we simply measured the hepatic CD36 and SACRB1 (the gene for scavenger receptor B1 (SR-B1)) transcripts after the i.p. administration of PBS, CpG or CpG/GalN. There was a remarkable elevation of hepatic CD36 transcript expression in both the CpG- and CpG/GalN-treated mice at 8 h post-CpG injection whereas the increase in the PBS-treated mice was slower than the former two groups, suggesting that hepatic CD36 transcript expression is more pronounced in the combined stress models than under psychological stress alone. The individual mice data showed that the increase in CD36 expression was accompanied by a reduction in SCARB1 mRNA, showing reciprocal regulation between these two genes. Together with our previously reported findings, these data suggest that, in a murine model combining psychological stress with TLR-triggered hepatic inflammation, the psychological stress facilitates liver uptake of plasma TG (and its components fatty acids), but the subsequent re-esterification and/or release of TG-rich lipoproteins from the liver is impaired due to the concomitant TLR-signaling. We hypothesize that lipid metabolism during acute stress shifts toward an elevated hepatic uptake of lipids due to concomitant TLR signaling, facilitating the clearance of bacterial lipids by the liver. 展开更多
关键词 Toll-Like receptor 9 Cytidine Phosphate Guanosine Oligodinucleotide Scavenger receptor B1 TRIGLYCERIDE Hepatic Inflammation
下载PDF
C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway as a therapeutic target and regulatory mechanism for spinal cord injury
19
作者 Xiangzi Wang Xiaofei Niu +4 位作者 Yingkai Wang Yang Liu Cheng Yang Xuyi Chen Zhongquan Qi 《Neural Regeneration Research》 SCIE CAS 2025年第8期2231-2244,共14页
Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory damage.The expression of the C-C motif chemokine ligand... Spinal cord injury involves non-reversible damage to the central nervous system that is characterized by limited regenerative capacity and secondary inflammatory damage.The expression of the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis exhibits significant differences before and after injury.Recent studies have revealed that the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis is closely associated with secondary inflammatory responses and the recruitment of immune cells following spinal cord injury,suggesting that this axis is a novel target and regulatory control point for treatment.This review comprehensively examines the therapeutic strategies targeting the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis,along with the regenerative and repair mechanisms linking the axis to spinal cord injury.Additionally,we summarize the upstream and downstream inflammatory signaling pathways associated with spinal cord injury and the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis.This review primarily elaborates on therapeutic strategies that target the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the latest progress of research on antagonistic drugs,along with the approaches used to exploit new therapeutic targets within the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis and the development of targeted drugs.Nevertheless,there are presently no clinical studies relating to spinal cord injury that are focusing on the C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 axis.This review aims to provide new ideas and therapeutic strategies for the future treatment of spinal cord injury. 展开更多
关键词 apoptosis C-C motif chemokine ligand 2/C-C motif chemokine receptor 2 pathway C-C motif chemokine receptor 2 antagonists chemokine ligand 2 chemokine receptor 2 inflammation macrophage microglia spinal cord injury therapeutic method
下载PDF
Glucagon-like peptide-1 receptor agonists as a possible intervention to delay the onset of type 1 diabetes:A new horizon 被引量:1
20
作者 Mahmoud Nassar Ajay Chaudhuri +1 位作者 Husam Ghanim Paresh Dandona 《World Journal of Diabetes》 SCIE 2024年第2期133-136,共4页
Type 1 diabetes(T1D)is a chronic autoimmune condition that destroys insulinproducing beta cells in the pancreas,leading to insulin deficiency and hyperglycemia.The management of T1D primarily focuses on exogenous insu... Type 1 diabetes(T1D)is a chronic autoimmune condition that destroys insulinproducing beta cells in the pancreas,leading to insulin deficiency and hyperglycemia.The management of T1D primarily focuses on exogenous insulin replacement to control blood glucose levels.However,this approach does not address the underlying autoimmune process or prevent the progressive loss of beta cells.Recent research has explored the potential of glucagon-like peptide-1 receptor agonists(GLP-1RAs)as a novel intervention to modify the disease course and delay the onset of T1D.GLP-1RAs are medications initially developed for treating type 2 diabetes.They exert their effects by enhancing glucose-dependent insulin secretion,suppressing glucagon secretion,and slowing gastric emptying.Emerging evidence suggests that GLP-1RAs may also benefit the treatment of newly diagnosed patients with T1D.This article aims to highlight the potential of GLP-1RAs as an intervention to delay the onset of T1D,possibly through their potential immunomodulatory and anti-inflammatory effects and preservation of beta-cells.This article aims to explore the potential of shifting the paradigm of T1D management from reactive insulin replacement to proactive disease modification,which should open new avenues for preventing and treating T1D,improving the quality of life and long-term outcomes for individuals at risk of T1D. 展开更多
关键词 Type 1 diabetes Semaglutide Glucagon-like peptide-1 receptor agonists Insulin therapy Autoimmune response Blood glucose monitoring Β-cell preservation Early screening Teplizumab Randomized controlled trials
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部