Objective To review the expression of mechano-growth factor (MGF) and its roles in tissue repairs andregeneration. Methods The l iterature about the expression of MGF and its roles in tissue repairs and regeneration in recentyears was reviewed. Results MGF is sensitive to mechanical stimulation and can be expressed in various tissues/cells. MGF isresponsible for satell ite cell activation, myoblast proliferation, and plays important roles in the treatment of muscle coloboma,prevention of myocardial injury, and neuroprotection. Conclusion The important role of MGF in tissue repairs andregeneration has been identified, however, the detailed mechanisms remain unclear up to now and still need a further study.
目的 检测分化抑制因子1（Id-1）在肝细胞肝癌组织中和正常肝组织中的表达情况，了解Id-1与肝细胞肝癌患者预后关系。 方法 对获得的19例肝细胞肝癌组织标本和8例正常肝组织进行免疫组织化学染色，并对染色结果进行分级。借助SPSS软件，分析肝细胞肝癌组织标本与正常肝组织标本中的Id-1表达强度区别，Id-1与甲胎蛋白（AFP）相关性，及Id-1表达强度与肝癌患者预后之间的关系。 结果 免疫组织化学染色结果显示所有标本均表达为阳性，其中3例（+），7例（++），10例（+++）7例（++++），肝细胞肝癌组织标本与正常肝组织标本差异有统计学意义（P＜0.05）；Id-1表达与血液中AFP水平相关不显著（r=−0.121，P=0.621）；Spearman等级相关分析显示患者生存时间与Id-1表达呈负相关（r=−0.567，P=0.011）。 结论 Id-1在肝癌组织中表达增高 ，Id-1表达水平与生存时间呈负相关，但和AFP无明显相关。