Abstract
Tumor suppressor genes play an important role in preventing neoplastic transformation and maintaining normal tissue homeostasis. Par-4 is one such tumor suppressor which is unique in its ability to selectively induce apoptosis in cancer cells while leaving the normal cells unaffected. The cancer cell specific activity of Par-4 is elicited through intracellular as well as extracellular mechanisms. Intracellularly Par-4 acts through the inhibition of pro-survival pathways and activation of Fas mediated apoptosis whereas extracellular (secreted Par-4) acts by binding to cell surface GRP78 leading to activation of the extrinsic apoptotic pathway. Many studies have highlighted the importance of Par-4 not only in preventing cancer development/recurrence but also as a promising anticancer therapeutic agent.
Original language | English |
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Title of host publication | Anticancer Genes |
Pages | 155-166 |
Number of pages | 12 |
DOIs | |
State | Published - 2014 |
Publication series
Name | Advances in Experimental Medicine and Biology |
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Volume | 818 |
ISSN (Print) | 0065-2598 |
ISSN (Electronic) | 2214-8019 |
Bibliographical note
Funding Information:This study was supported by KLCR grant and NIH/NCI grant CA060872 (to VMR). The authors thank the past and present members of the Rangnekar Laboratory and collaborators who contributed to the work described in this review article.
Keywords
- Apoptosis
- Extracellular systemic effects
- Par-4/PAWR
- Prostate cancer
- Tumor suppressor protein
ASJC Scopus subject areas
- General Biochemistry, Genetics and Molecular Biology