The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics

p21<b><sup>cip1/waf1</sup></b> mediates various biological activities by sensing and responding to multiple stimuli, via p53-dependent and independent pathways. p21 is known to act as a tumor suppressor mainly by inhibiting cell cycle progression and allowing DNA repair. Sign...

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Main Authors: Samar Al Bitar, Hala Gali-Muhtasib
Format: Article
Language:English
Published: MDPI AG 2019-09-01
Series:Cancers
Subjects:
p21
Online Access:https://www.mdpi.com/2072-6694/11/10/1475
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spelling doaj-79e7d812a1174eaeb95129a5f7b35b262020-11-24T22:08:19ZengMDPI AGCancers2072-66942019-09-011110147510.3390/cancers11101475cancers11101475The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel TherapeuticsSamar Al Bitar0Hala Gali-Muhtasib1Department of Biology, and Center for Drug Discovery, American University of Beirut, Beirut 1103, LebanonDepartment of Biology, and Center for Drug Discovery, American University of Beirut, Beirut 1103, Lebanonp21<b><sup>cip1/waf1</sup></b> mediates various biological activities by sensing and responding to multiple stimuli, via p53-dependent and independent pathways. p21 is known to act as a tumor suppressor mainly by inhibiting cell cycle progression and allowing DNA repair. Significant advances have been made in elucidating the potential role of p21 in promoting tumorigenesis. Here, we discuss the involvement of p21 in multiple signaling pathways, its dual role in cancer, and the importance of understanding its paradoxical functions for effectively designing therapeutic strategies that could selectively inhibit its oncogenic activities, override resistance to therapy and yet preserve its tumor suppressive functions.https://www.mdpi.com/2072-6694/11/10/1475p21signaling pathwayscell cycledual rolecancer therapychemoresistance
collection DOAJ
language English
format Article
sources DOAJ
author Samar Al Bitar
Hala Gali-Muhtasib
spellingShingle Samar Al Bitar
Hala Gali-Muhtasib
The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics
Cancers
p21
signaling pathways
cell cycle
dual role
cancer therapy
chemoresistance
author_facet Samar Al Bitar
Hala Gali-Muhtasib
author_sort Samar Al Bitar
title The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics
title_short The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics
title_full The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics
title_fullStr The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics
title_full_unstemmed The Role of the Cyclin Dependent Kinase Inhibitor p21<sup>cip1/waf1</sup> in Targeting Cancer: Molecular Mechanisms and Novel Therapeutics
title_sort role of the cyclin dependent kinase inhibitor p21<sup>cip1/waf1</sup> in targeting cancer: molecular mechanisms and novel therapeutics
publisher MDPI AG
series Cancers
issn 2072-6694
publishDate 2019-09-01
description p21<b><sup>cip1/waf1</sup></b> mediates various biological activities by sensing and responding to multiple stimuli, via p53-dependent and independent pathways. p21 is known to act as a tumor suppressor mainly by inhibiting cell cycle progression and allowing DNA repair. Significant advances have been made in elucidating the potential role of p21 in promoting tumorigenesis. Here, we discuss the involvement of p21 in multiple signaling pathways, its dual role in cancer, and the importance of understanding its paradoxical functions for effectively designing therapeutic strategies that could selectively inhibit its oncogenic activities, override resistance to therapy and yet preserve its tumor suppressive functions.
topic p21
signaling pathways
cell cycle
dual role
cancer therapy
chemoresistance
url https://www.mdpi.com/2072-6694/11/10/1475
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