This review presents current classification, functions of main groups of mitogen-activated protein kinases (MAPK) and summarizes data on the ways of their activation and functioning, giving particular emphasis to p38 MAPK. The authors consider the influence on these signaling cascades as a promising direction for activation of connective tissue growth. This article summarizes international practices on the activation and blocking of intracellular cascades and also the authors’ own experience in this field. In particular, the article shows that p38 MAP-kinase stimulation while JNK inactivation causes accelerated formation of connective tissue in the area of postoperative surgical scar. The authors prove the opportunity to manage connective t...