Hepatocellular carcinoma(HCC)is one of the most common malignant tumors in the world with a high incidence and has become one of the most malignant cancers worldwide.Its clinical treatment mainly includes surgical int...Hepatocellular carcinoma(HCC)is one of the most common malignant tumors in the world with a high incidence and has become one of the most malignant cancers worldwide.Its clinical treatment mainly includes surgical intervention,chemotherapy,and iirununotherapy,with poor curative effect and prognosis.In recent years,with the development of basic research,it has been revealed that protein tyrosine phosphatase receptor-type O(PTPRO)plays an important role in the pathogenesis of hepatocellular carcinoma.Protein tyrosine phosphatase receptor-type O is a new type of protein tyrosine phosphatase,which has been proven to inhibit oncoprotein.In this paper,the potential mechanism of protein tyrosine phosphatase receptor-type O in the progression of hepatocellular carcinoma is discussed to provide reference for clinical treatment and drug development.展开更多
Protein tyrosine phosphatases(PTPs) play an important role in regulating cell signaling events in coordination with tyrosine kinases to control cell proliferation, apoptosis, survival, migration, and invasion. Recepto...Protein tyrosine phosphatases(PTPs) play an important role in regulating cell signaling events in coordination with tyrosine kinases to control cell proliferation, apoptosis, survival, migration, and invasion. Receptor-type protein tyrosine phosphatases(PTPRs) are a subgroup of PTPs that share a transmembrane domain with resulting similarities in function and target specificity. In this review, we summarize genetic and epigenetic alterations including mutation, deletion, amplification, and promoter methylation of PTPRs in cancer and consider the consequences of PTPR alterations in different types of cancers. We also summarize recent developments using PTPRs as prognostic or predictive biomarkers and/or direct targets. Increased understanding of the role of PTPRs in cancer may provide opportunities to improve therapeutic approaches.展开更多
动脉型肺动脉高压(pulmonary arterial hypertension,PAH)是以肺血管病理性重塑和肺动脉压升高为特征的进行性心肺疾病。骨形态发生蛋白受体2(bone morphogenetic protein receptor type 2,BMPR2)信号通路功能异常是驱动PAH发生发展的...动脉型肺动脉高压(pulmonary arterial hypertension,PAH)是以肺血管病理性重塑和肺动脉压升高为特征的进行性心肺疾病。骨形态发生蛋白受体2(bone morphogenetic protein receptor type 2,BMPR2)信号通路功能异常是驱动PAH发生发展的关键分子机制。作为PAH的主要遗传易感因素,约70%的遗传性PAH(heritable PAH,HPAH)和20%的特发性PAH(idiopathic PAH,IPAH)患者携带BMPR2突变。传统观点认为BMPR2通过Smad依赖的经典信号通路调控血管稳态,但近年研究显示其非经典信号通路(如TAK1-MAPK、PI3K-AKT、RhoAROCK等)的异常激活也是驱动PAH进展的关键因素。本文阐述BMPR2非经典信号通路的分子机制及其在PAH中的作用,并介绍靶向这些通路的治疗潜力。展开更多
目的为受体相互作用蛋白激酶1(RIPK1)抑制剂的开发及作用机制研究提供参考。方法采用计算机检索2005年至2024年PubMed、Web of Science、中国知网等数据库中RIPK1抑制剂的相关研究文献,总结RIPK1的结构、生物学功能与影响疾病,以及其抑...目的为受体相互作用蛋白激酶1(RIPK1)抑制剂的开发及作用机制研究提供参考。方法采用计算机检索2005年至2024年PubMed、Web of Science、中国知网等数据库中RIPK1抑制剂的相关研究文献,总结RIPK1的结构、生物学功能与影响疾病,以及其抑制剂的分类。结果RIPK1为包含671个氨基酸的多功能蛋白,通过其激酶结构域、调节区域、死亡结构域、受体相互作用蛋白同型相互作用基序(RHIM)结构域在细胞死亡、炎性反应、肿瘤免疫反应中发挥重要作用。RIPK1与多发性硬化症、肌萎缩性侧索硬化症等慢性神经退行性疾病,炎症性肠病、银屑病等免疫和自身炎症性疾病,胶质母细胞瘤、黑色素瘤等肿瘤的发生与发展密切相关。基于作用构象和结合位点,RIPK1可分为Ⅰ型、Ⅱ型、Ⅲ型三磷酸腺苷竞争性抑制剂;基于化学结构,RIPK1可分为Necrostatin-1(Nec-1)及其衍生物类、苯并氧氮杂酮类、二氢吡唑类、苯并噻唑类、天然产物类及其衍生物类RIPK1抑制剂。结论RIPK1抑制剂研究在分子机制、构效关系及药物设计方面取得了显著进展,在基础研究与临床应用中有广阔前景。随着对RIPK1生物学功能的深入理解及新一代抑制剂的研发,RIPK1抑制剂有望为多种疾病提供新的治疗策略。展开更多
文摘Hepatocellular carcinoma(HCC)is one of the most common malignant tumors in the world with a high incidence and has become one of the most malignant cancers worldwide.Its clinical treatment mainly includes surgical intervention,chemotherapy,and iirununotherapy,with poor curative effect and prognosis.In recent years,with the development of basic research,it has been revealed that protein tyrosine phosphatase receptor-type O(PTPRO)plays an important role in the pathogenesis of hepatocellular carcinoma.Protein tyrosine phosphatase receptor-type O is a new type of protein tyrosine phosphatase,which has been proven to inhibit oncoprotein.In this paper,the potential mechanism of protein tyrosine phosphatase receptor-type O in the progression of hepatocellular carcinoma is discussed to provide reference for clinical treatment and drug development.
文摘Protein tyrosine phosphatases(PTPs) play an important role in regulating cell signaling events in coordination with tyrosine kinases to control cell proliferation, apoptosis, survival, migration, and invasion. Receptor-type protein tyrosine phosphatases(PTPRs) are a subgroup of PTPs that share a transmembrane domain with resulting similarities in function and target specificity. In this review, we summarize genetic and epigenetic alterations including mutation, deletion, amplification, and promoter methylation of PTPRs in cancer and consider the consequences of PTPR alterations in different types of cancers. We also summarize recent developments using PTPRs as prognostic or predictive biomarkers and/or direct targets. Increased understanding of the role of PTPRs in cancer may provide opportunities to improve therapeutic approaches.
文摘动脉型肺动脉高压(pulmonary arterial hypertension,PAH)是以肺血管病理性重塑和肺动脉压升高为特征的进行性心肺疾病。骨形态发生蛋白受体2(bone morphogenetic protein receptor type 2,BMPR2)信号通路功能异常是驱动PAH发生发展的关键分子机制。作为PAH的主要遗传易感因素,约70%的遗传性PAH(heritable PAH,HPAH)和20%的特发性PAH(idiopathic PAH,IPAH)患者携带BMPR2突变。传统观点认为BMPR2通过Smad依赖的经典信号通路调控血管稳态,但近年研究显示其非经典信号通路(如TAK1-MAPK、PI3K-AKT、RhoAROCK等)的异常激活也是驱动PAH进展的关键因素。本文阐述BMPR2非经典信号通路的分子机制及其在PAH中的作用,并介绍靶向这些通路的治疗潜力。
文摘目的为受体相互作用蛋白激酶1(RIPK1)抑制剂的开发及作用机制研究提供参考。方法采用计算机检索2005年至2024年PubMed、Web of Science、中国知网等数据库中RIPK1抑制剂的相关研究文献,总结RIPK1的结构、生物学功能与影响疾病,以及其抑制剂的分类。结果RIPK1为包含671个氨基酸的多功能蛋白,通过其激酶结构域、调节区域、死亡结构域、受体相互作用蛋白同型相互作用基序(RHIM)结构域在细胞死亡、炎性反应、肿瘤免疫反应中发挥重要作用。RIPK1与多发性硬化症、肌萎缩性侧索硬化症等慢性神经退行性疾病,炎症性肠病、银屑病等免疫和自身炎症性疾病,胶质母细胞瘤、黑色素瘤等肿瘤的发生与发展密切相关。基于作用构象和结合位点,RIPK1可分为Ⅰ型、Ⅱ型、Ⅲ型三磷酸腺苷竞争性抑制剂;基于化学结构,RIPK1可分为Necrostatin-1(Nec-1)及其衍生物类、苯并氧氮杂酮类、二氢吡唑类、苯并噻唑类、天然产物类及其衍生物类RIPK1抑制剂。结论RIPK1抑制剂研究在分子机制、构效关系及药物设计方面取得了显著进展,在基础研究与临床应用中有广阔前景。随着对RIPK1生物学功能的深入理解及新一代抑制剂的研发,RIPK1抑制剂有望为多种疾病提供新的治疗策略。
