Cited by 2,463Drug Transport and Resistance MechanismsCancer Cells and MetastasisAntibiotic Resistance in Bacteria

Drug resistance in cancer: An overview

Open access
Housman, Genevieve, Byler, Shannon, Heerboth, Sarah, Lapinska, Karolina, Longacre, Mckenna, Snyder, Nicole, Sarkar, Sibaji·2014·Cancers

Abstract

Cancers have the ability to develop resistance to traditional therapies, and the increasing prevalence of these drug resistant cancers necessitates further research and treatment development. This paper outlines the current knowledge of mechanisms that promote or enable drug resistance, such as drug inactivation, drug target alteration, drug efflux, DNA damage repair, cell death inhibition, and the epithelial-mesenchymal transition, as well as how inherent tumor cell heterogeneity plays a role in drug resistance. It also describes the epigenetic modifications that can induce drug resistance and considers how such epigenetic factors may contribute to the development of cancer progenitor cells, which are not killed by conventional cancer therapies. Lastly, this review concludes with a discussion on the best treatment options for existing drug resistant cancers, ways to prevent the formation of drug resistant cancers and cancer progenitor cells, and future directions of study.

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Crossref · 10.3390/cancers6031769

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112 of 112 references verified0 citation errors · 0 not checkable

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  • Cancer stem cells exhibit intrinsic resistance to chemotherapy via overexpression of ATP-binding cassette (ABC) drug transporters, enhanced DNA repair capabilities, upregulation of anti-apoptotic proteins, and altered expression of drug metabolism-associated markers.

    “CSCs, in particular, exhibit intrinsic resistance to chemotherapy via overexpression of ATP-binding cassette (ABC) drug transporters, enhanced DNA repair capabilities, upregulation of anti-apoptotic proteins, and altered expression of drug metabolism-associated markers [122,123,124].”

    From Modeling Tumor Microenvironment Complexity In Vitro: Spheroids as Physiologically Relevant Tumor Models and Strategies for Their Analysis (2025) · cites this paper as [124]

    Section 3 (page unavailable) says cancer progenitor cells, also called cancer stem cells, are often drug resistant and identifies increased MDR1 expression as one possible mechanism. Sections 2.4 and 2.5 discuss DNA repair and anti-apoptotic proteins as resistance mechanisms in cancers generally, but do not establish them as mechanisms specifically in cancer stem cells. The copy also does not establish altered drug-metabolism-associated markers as a cancer stem cell mechanism. (LLM, conf=0.88)

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Authors
Housman, G., Byler, S., Heerboth, S., Lapinska, K., Longacre, M., Snyder, N., & Sarkar, S.
Affiliations
  • Arizona State University (US)
  • Boston University (US)
  • Harvard University (US)
Corresponding author
Sarkar, Sibaji
Venue
Cancers
Publisher
MDPI AG
Published
2014-09-05
Volume
6
Issue
3
Pages
1769-1792
ISSN
2072-6694 (ISSN-L)
OpenAlex
W2131487381
Cited by
2,463
References
112
Citations by year
2026: 89 · 2025: 192 · 2024: 273 · 2023: 308 · 2022: 278 · 2021: 301 · 2020: 290 · 2019: 303 · 2018: 227 · 2017: 119 · 2016: 47 · 2015: 31 · 2014: 3
FWCI
7.60
Type
journal article
Language
en
Open access
Locations
  • Cancers (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • Arizona State University Library Digital Repository (Arizona State University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Antibiotic Resistance in Bacteria
Keywords
chemoresistance, drug inactivation, drug target alterations, drug efflux, DNA repair, cell death inhibition, epithelial-mesenchymal transition, tumor heterogeneity, epigenetic modifications, cancer stem cells

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