IL-33/ST2信号通路在纤维化疾病中的作用

Interleukin (IL)-33 is a member of IL-1 family. It is identified as a functional ligand for ST2 which is an IL-1 receptor-like protein. IL-33/ST2 signaling is involved in T-cell-mediated immune responses. Increasing evidence indicates that IL-33 has different roles in different diseases. Recently, some studies have demonstrated that IL-33 may be related to the genesis and development of fibrosis diseases. We review current knowledge of the biological characteristics of IL-33 and the role of IL-33/ST2 signaling pathway in fibrosis diseases.     

小鼠ST2基因慢病毒表达载体的构建及鉴定

<正>ST2是白细胞介素-1(interleukin-1,IL-1)受体家族的一员[1],是IL-33的受体。它最初是在成纤维细胞增殖的初期阶段发现的一个基因,也被称为T1,Fit-1[2-3]。由于剪切和拼接方式的不同,ST2在人体内有跨膜型ST2(transmembrane ST2 isoform,ST2L)、可溶型ST2(soluble ST2,sST2)及ST2变体     

rhBMP-2对再生障碍性贫血小鼠骨髓造血恢复的促进作用

探究了人重组骨形态发生蛋白-2(rhBMP-2)对再障小鼠的治疗作用。采用5-FU联合白消安建立小鼠再障模型,通过干预rhBMP-2进行治疗。考察了各实验组小鼠白细胞数、骨髓单核细胞数、体重、存活率、脾系数、粒系-巨系细胞集落(CFU-GM)数以及骨髓单核细胞中CD34⁺细胞比例,进行股骨、脾脏HE切片分析。结果表明,相较于再障对照组,rhBMP-2治疗组小鼠的白细胞数、存活率、CFU-GM集落数及骨髓单核细胞数显著提高,并且骨髓单核细胞中的CD34⁺细胞含量也提高,显著改善脾脏功能和缓解骨髓抑制,证实rhBMP-2能够促进再障小鼠造血损伤的修复。