Targeting major vault protein in senescence-associated apoptosis resistance.
BACKGROUND
Recent studies have shown that major vault protein (MVP) is involved in intracellular signaling, cell survival, differentiation and innate immunity and that it is not directly responsible for nucleo-cytoplasmic drug transport in multi-drug-resistant cancer cell lines. Recently, we reported that MVP increases with age both in vitro and in vivo, and that age-related upregulation of MVP facilitates apoptosis resistance of senescent human diploid fibroblasts (HDFs) based on the interaction with c-Jun-mediated downregulation of bcl-2.


OBJECTIVE
To discuss the role of MVP in cell survival and signaling in the development of resistance to apoptosis exhibited by senescent HDFs.


CONCLUSIONS
MVP represents a versatile platform for regulation of cellular signaling and survival and is a potential therapeutic target for modulation of resistance to apoptosis, implicated in aging modulation and cancer treatment.
Ryu
Sung Jin
SJ
Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Aging and Apoptosis Research Center, Seoul, South Korea.
Park
Sang Chul
SC