Downregulated expression of the signaling molecules Nck, c-Crk, Grb2/Ash, PI 3-kinase p110α and WRN during fibroblast aging in vitro

Abstract

An RT-PCR analysis was performed to examine changes in intracellular signal transducing molecules during in-vitro aging of human fibroblasts. Expression of Nck, c-Crk, Grb2/Ash, phosphoinositide (PI) 3-kinase p110 α and Werner's syndrome gene product WRN was noticeably reduced in late passage cells, showing a concurrent downregulation of a set of signaling molecules accompanying aging.