Sung Jin Ryu1, Sang Chul Park. 1. Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Aging and Apoptosis Research Center, Seoul, South Korea.
Abstract
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. OBJECTIVES: 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.
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. OBJECTIVES: 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.
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