Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer

Drug resistance is perhaps the greatest challenge in improving outcomes for cancer patients undergoing treatment with targeted therapies. It is becoming clear that “persisters,” a subpopulation of drug-tolerant cells found in cancer populations, play a critical role in the development of drug resist...

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Main Authors: Heidie Frisco Cabanos, Aaron N. Hata
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/11/2666
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author Heidie Frisco Cabanos
Aaron N. Hata
author_facet Heidie Frisco Cabanos
Aaron N. Hata
author_sort Heidie Frisco Cabanos
collection DOAJ
description Drug resistance is perhaps the greatest challenge in improving outcomes for cancer patients undergoing treatment with targeted therapies. It is becoming clear that “persisters,” a subpopulation of drug-tolerant cells found in cancer populations, play a critical role in the development of drug resistance. Persisters are able to maintain viability under therapy but are typically slow cycling or dormant. These cells do not harbor classic drug resistance driver alterations, and their partial resistance phenotype is transient and reversible upon removal of the drug. In the clinic, the persister state most closely corresponds to minimal residual disease from which relapse can occur if treatment is discontinued or if acquired drug resistance develops in response to continuous therapy. Thus, eliminating persister cells will be crucial to improve outcomes for cancer patients. Using lung cancer targeted therapies as a primary paradigm, this review will give an overview of the characteristics of drug-tolerant persister cells, mechanisms associated with drug tolerance, and potential therapeutic opportunities to target this persister cell population in tumors.
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spelling doaj.art-28887b2a841f4709afb380bf2ae6eafb2023-11-21T21:50:26ZengMDPI AGCancers2072-66942021-05-011311266610.3390/cancers13112666Emerging Insights into Targeted Therapy-Tolerant Persister Cells in CancerHeidie Frisco Cabanos0Aaron N. Hata1Massachusetts General Hospital Cancer Center, Charlestown, MA 02129, USAMassachusetts General Hospital Cancer Center, Charlestown, MA 02129, USADrug resistance is perhaps the greatest challenge in improving outcomes for cancer patients undergoing treatment with targeted therapies. It is becoming clear that “persisters,” a subpopulation of drug-tolerant cells found in cancer populations, play a critical role in the development of drug resistance. Persisters are able to maintain viability under therapy but are typically slow cycling or dormant. These cells do not harbor classic drug resistance driver alterations, and their partial resistance phenotype is transient and reversible upon removal of the drug. In the clinic, the persister state most closely corresponds to minimal residual disease from which relapse can occur if treatment is discontinued or if acquired drug resistance develops in response to continuous therapy. Thus, eliminating persister cells will be crucial to improve outcomes for cancer patients. Using lung cancer targeted therapies as a primary paradigm, this review will give an overview of the characteristics of drug-tolerant persister cells, mechanisms associated with drug tolerance, and potential therapeutic opportunities to target this persister cell population in tumors.https://www.mdpi.com/2072-6694/13/11/2666drug-tolerant persisterstargeted therapyacquired drug resistance
spellingShingle Heidie Frisco Cabanos
Aaron N. Hata
Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer
Cancers
drug-tolerant persisters
targeted therapy
acquired drug resistance
title Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer
title_full Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer
title_fullStr Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer
title_full_unstemmed Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer
title_short Emerging Insights into Targeted Therapy-Tolerant Persister Cells in Cancer
title_sort emerging insights into targeted therapy tolerant persister cells in cancer
topic drug-tolerant persisters
targeted therapy
acquired drug resistance
url https://www.mdpi.com/2072-6694/13/11/2666
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