Journal
MALAYSIAN JOURNAL OF PATHOLOGY
Volume 38, Issue 2, Pages 75-82Publisher
MALAYSIAN JOURNAL PATHOLOGY
Keywords
Glucose regulated protein; cancer
Categories
Funding
- University of Malaya Post Graduate Research grant (PPP) [PG180-2015B]
- Univerisity of Malaya HIR Chancellery grant [UM.C/625/1/HIR/224]
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Heat shock proteins (HSPs) are a family of evolutionary conserved proteins that work as molecular chaperones for cellular proteins essential for cell viability and growth as well as having numerous cyto-protective roles. They are sub-categorised based on their molecular weights; amongst which some of the most extensively studied are the HSP90 and HSP70 families. Important members of these two families; Heat shock proteins 70 and heat shock proteins 90 (Hsp70/90), are the glucose regulated proteins (GRP). These stress-inducible chaperones possess distinct roles from that of the other HSPs, residing mostly in the endoplasmic reticulum and mitochondria, but they can also be translocated to other cellular locations. Their ability in adapting to stress conditions in the tumour microenvironment suggests novel functions in cancer. GRPs have been implicated in many crucial steps of carcinogenesis to include stabilization of oncogenic proteins, induction of tumour angiogenesis, inhibition of apoptosis and replicative senescence, and promotion of invasion and metastasis.
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