目的探讨哺乳动物ste20样激酶1(mammalian sterile20-like 1,MST1)基因的miRNAs对肝脏内脂质堆积的影响。方法利用高脂诱导非酒精性脂肪性肝病(NAFLD)模型小鼠与低脂对照组小鼠的肝脏及脂肪组织进行miRNAsequence分析,选取表达上调的miR...目的探讨哺乳动物ste20样激酶1(mammalian sterile20-like 1,MST1)基因的miRNAs对肝脏内脂质堆积的影响。方法利用高脂诱导非酒精性脂肪性肝病(NAFLD)模型小鼠与低脂对照组小鼠的肝脏及脂肪组织进行miRNAsequence分析,选取表达上调的miRNAs,通过数据库miRDB、starBase筛选出可能靶向MST1靶基因3’UTR区的miRNAs进行研究,利用Western blot及双荧光素酶报告基因实验检测miRNAs对MST1的靶向效应。并在NAFLD细胞模型内进行MST1过表达或干扰,进一步验证miRNAs对MST1的表达调控作用。结果 Western blot实验显示得到mmu miR 149-5p和mmu miR 499-5p抑制鼠MST1基因蛋白水平的表达,Luciferases实验证明mmu miR 149-5p和mmu miR 499-5p靶向MST1能够增加AML-12细胞内的脂质堆积。结论mmu miR 149-5p、mmu miR 499-5p能够调控小鼠肝脏MST1表达并影响肝脏内脂质堆积。展开更多
Recently, inflammatory bowel disease （IBD） has been the subject of considerable research, with increasing attention being paid to the loss of intestinal epithelial cell barrier function as a mechanism of pathogenesi...Recently, inflammatory bowel disease （IBD） has been the subject of considerable research, with increasing attention being paid to the loss of intestinal epithelial cell barrier function as a mechanism of pathogenesis. Ste20-related proline/alanine-rich kinase （SPAK） is involved in regulating barrier function. SPAK is known to interact with inflammation-related kinases （such as p38, JNK, NKCC1, PKCS, WNK and MLCK）, and with transcription factor AP-1, resulting in diverse biological phenomena, including cell differentiation, cell transformation and proliferation, cytoskeleton rearrangement, and regulation of chloride transport. This review examines the involvement of Ste20-1ike kinases and downstream mitogen-activated protein kinases （MAPKs） pathways in the pathogenesis and control of intestinal inflammation. The primary focus will be on the molecular features of intestinal inflammation, with an emphasis on the interaction between SPAK and other molecules, and the effect of these interactions on homeostatic maintenance, cell volume regulation and increased cell permeability in intestinal inflammation.展开更多
文摘目的探讨哺乳动物ste20样激酶1(mammalian sterile20-like 1,MST1)基因的miRNAs对肝脏内脂质堆积的影响。方法利用高脂诱导非酒精性脂肪性肝病(NAFLD)模型小鼠与低脂对照组小鼠的肝脏及脂肪组织进行miRNAsequence分析,选取表达上调的miRNAs,通过数据库miRDB、starBase筛选出可能靶向MST1靶基因3’UTR区的miRNAs进行研究,利用Western blot及双荧光素酶报告基因实验检测miRNAs对MST1的靶向效应。并在NAFLD细胞模型内进行MST1过表达或干扰,进一步验证miRNAs对MST1的表达调控作用。结果 Western blot实验显示得到mmu miR 149-5p和mmu miR 499-5p抑制鼠MST1基因蛋白水平的表达,Luciferases实验证明mmu miR 149-5p和mmu miR 499-5p靶向MST1能够增加AML-12细胞内的脂质堆积。结论mmu miR 149-5p、mmu miR 499-5p能够调控小鼠肝脏MST1表达并影响肝脏内脂质堆积。
文摘Recently, inflammatory bowel disease （IBD） has been the subject of considerable research, with increasing attention being paid to the loss of intestinal epithelial cell barrier function as a mechanism of pathogenesis. Ste20-related proline/alanine-rich kinase （SPAK） is involved in regulating barrier function. SPAK is known to interact with inflammation-related kinases （such as p38, JNK, NKCC1, PKCS, WNK and MLCK）, and with transcription factor AP-1, resulting in diverse biological phenomena, including cell differentiation, cell transformation and proliferation, cytoskeleton rearrangement, and regulation of chloride transport. This review examines the involvement of Ste20-1ike kinases and downstream mitogen-activated protein kinases （MAPKs） pathways in the pathogenesis and control of intestinal inflammation. The primary focus will be on the molecular features of intestinal inflammation, with an emphasis on the interaction between SPAK and other molecules, and the effect of these interactions on homeostatic maintenance, cell volume regulation and increased cell permeability in intestinal inflammation.
