Therapy induced senescence and its implications in cancer

Senescence is a phenomenon of ‘end of cells replicative capacity’, characterized by irreversible cell cycle arrest which in the context of cancer, will contain the growth of tumour. Hence possibility of using pro-senescence therapies for cancer therapeutics has generated substantial interest. In thi...

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Main Authors: Jyothi Nair, Poorvaja Muley, Shilpee Dutt
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2017-01-01
Series:Biomedical Research Journal
Subjects:
Online Access:http://www.brjnmims.org/article.asp?issn=2349-3666;year=2017;volume=4;issue=1;spage=28;epage=48;aulast=Nair;type=0
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author Jyothi Nair
Poorvaja Muley
Shilpee Dutt
author_facet Jyothi Nair
Poorvaja Muley
Shilpee Dutt
author_sort Jyothi Nair
collection DOAJ
description Senescence is a phenomenon of ‘end of cells replicative capacity’, characterized by irreversible cell cycle arrest which in the context of cancer, will contain the growth of tumour. Hence possibility of using pro-senescence therapies for cancer therapeutics has generated substantial interest. In this regards there are several reports showing that senescence can be induced in cancer cells by genotoxic agents used in anti-neoplastic therapy, such senescence is called ‘therapy induced senescence’ (TIS). Therapy induced senescent cells undergo cell death or eventual immune-mediated clearance. However, recent reports also show the existence of ‘therapy induced senescence reversal’ mechanisms in some cancers, wherein after a definite period of time, senescent cells overcome the arrest and re-enter the cell cycle, eventually repopulating the tumour which will limit the use of senescence for cancer therapeutics. The data also highlighs that TIS is complex and we do not fully understand many aspects of this phenomenon. Therefore to harness senescence for cancer therapeutics, a deeper understanding of the underlying molecular mechanisms governing establishment and reversal of senescence is required. In the current review, we have discussed current knowledge of the therapeutic agents inducing senescence, their mechanism of induction and the implication of senescence reversal in cancers.
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spelling doaj.art-02045d8b0d044d73abde631c9d5ddf592022-12-21T20:31:48ZengWolters Kluwer Medknow PublicationsBiomedical Research Journal2349-36662349-36742017-01-0141284810.4103/2349-3666.240590Therapy induced senescence and its implications in cancerJyothi NairPoorvaja MuleyShilpee DuttSenescence is a phenomenon of ‘end of cells replicative capacity’, characterized by irreversible cell cycle arrest which in the context of cancer, will contain the growth of tumour. Hence possibility of using pro-senescence therapies for cancer therapeutics has generated substantial interest. In this regards there are several reports showing that senescence can be induced in cancer cells by genotoxic agents used in anti-neoplastic therapy, such senescence is called ‘therapy induced senescence’ (TIS). Therapy induced senescent cells undergo cell death or eventual immune-mediated clearance. However, recent reports also show the existence of ‘therapy induced senescence reversal’ mechanisms in some cancers, wherein after a definite period of time, senescent cells overcome the arrest and re-enter the cell cycle, eventually repopulating the tumour which will limit the use of senescence for cancer therapeutics. The data also highlighs that TIS is complex and we do not fully understand many aspects of this phenomenon. Therefore to harness senescence for cancer therapeutics, a deeper understanding of the underlying molecular mechanisms governing establishment and reversal of senescence is required. In the current review, we have discussed current knowledge of the therapeutic agents inducing senescence, their mechanism of induction and the implication of senescence reversal in cancers.http://www.brjnmims.org/article.asp?issn=2349-3666;year=2017;volume=4;issue=1;spage=28;epage=48;aulast=Nair;type=0cancersenescencechemotherapeutic agents
spellingShingle Jyothi Nair
Poorvaja Muley
Shilpee Dutt
Therapy induced senescence and its implications in cancer
Biomedical Research Journal
cancer
senescence
chemotherapeutic agents
title Therapy induced senescence and its implications in cancer
title_full Therapy induced senescence and its implications in cancer
title_fullStr Therapy induced senescence and its implications in cancer
title_full_unstemmed Therapy induced senescence and its implications in cancer
title_short Therapy induced senescence and its implications in cancer
title_sort therapy induced senescence and its implications in cancer
topic cancer
senescence
chemotherapeutic agents
url http://www.brjnmims.org/article.asp?issn=2349-3666;year=2017;volume=4;issue=1;spage=28;epage=48;aulast=Nair;type=0
work_keys_str_mv AT jyothinair therapyinducedsenescenceanditsimplicationsincancer
AT poorvajamuley therapyinducedsenescenceanditsimplicationsincancer
AT shilpeedutt therapyinducedsenescenceanditsimplicationsincancer