The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy

Microtubule poisons, as is the case with other antitumor drugs, routinely promote autophagy in tumor cells. However, the nature and function of the autophagy, in terms of whether it is cytoprotective, cytotoxic or nonprotective, cannot be predicted; this likely depends on both the type of drug studi...

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Main Authors: Jingwen Xu, Ahmed M. Elshazly, David A. Gewirtz
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/10/7/1632
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author Jingwen Xu
Ahmed M. Elshazly
David A. Gewirtz
author_facet Jingwen Xu
Ahmed M. Elshazly
David A. Gewirtz
author_sort Jingwen Xu
collection DOAJ
description Microtubule poisons, as is the case with other antitumor drugs, routinely promote autophagy in tumor cells. However, the nature and function of the autophagy, in terms of whether it is cytoprotective, cytotoxic or nonprotective, cannot be predicted; this likely depends on both the type of drug studied as well as the tumor cell under investigation. In this article, we explore the literature relating to the spectrum of microtubule poisons and the nature of the autophagy induced. We further speculate as to whether autophagy inhibition could be a practical strategy for improving the response to cancer therapy involving these drugs that have microtubule function as a primary target.
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spelling doaj.art-a4fb1390db4b42869cf87aad38745c3f2023-12-01T21:56:07ZengMDPI AGBiomedicines2227-90592022-07-01107163210.3390/biomedicines10071632The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic StrategyJingwen Xu0Ahmed M. Elshazly1David A. Gewirtz2School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, ChinaMassey Cancer Center, Department of Pharmacology and Toxicology, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, USAMassey Cancer Center, Department of Pharmacology and Toxicology, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, USAMicrotubule poisons, as is the case with other antitumor drugs, routinely promote autophagy in tumor cells. However, the nature and function of the autophagy, in terms of whether it is cytoprotective, cytotoxic or nonprotective, cannot be predicted; this likely depends on both the type of drug studied as well as the tumor cell under investigation. In this article, we explore the literature relating to the spectrum of microtubule poisons and the nature of the autophagy induced. We further speculate as to whether autophagy inhibition could be a practical strategy for improving the response to cancer therapy involving these drugs that have microtubule function as a primary target.https://www.mdpi.com/2227-9059/10/7/1632autophagymicrotubule poisoncytoprotectivecytotoxicnonprotectivechemosensitization
spellingShingle Jingwen Xu
Ahmed M. Elshazly
David A. Gewirtz
The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy
Biomedicines
autophagy
microtubule poison
cytoprotective
cytotoxic
nonprotective
chemosensitization
title The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy
title_full The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy
title_fullStr The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy
title_full_unstemmed The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy
title_short The Cytoprotective, Cytotoxic and Nonprotective Functional Forms of Autophagy Induced by Microtubule Poisons in Tumor Cells—Implications for Autophagy Modulation as a Therapeutic Strategy
title_sort cytoprotective cytotoxic and nonprotective functional forms of autophagy induced by microtubule poisons in tumor cells implications for autophagy modulation as a therapeutic strategy
topic autophagy
microtubule poison
cytoprotective
cytotoxic
nonprotective
chemosensitization
url https://www.mdpi.com/2227-9059/10/7/1632
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