Cited by 98Cancer Cells and MetastasisLung Cancer Research StudiesMesenchymal stem cell research

Lung cancer stem cell markers as therapeutic targets: An update on signaling pathways and therapies

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Zheng, Yue, Wang, Laduona, Yin, Limei, Yao, Zhuoran, Tong, Ruizhan, Xue, Jianxin, Lu, You·2022·Frontiers in Oncology

Abstract

Cancer stem cells, a relatively small group of self-renewing cancer cells, were first isolated from acute myeloid leukemia. These cells can play a crucial role in tumor metastasis, relapse, and therapy resistance. The cancer stem cell theory may be applied to lung cancer and explain the inefficiency of traditional treatments and eventual recurrence. However, because of the unclear accuracy and illusive biological function of cancer stem cells, some researchers remain cautious about this theory. Despite the ongoing controversy, cancer stem cells are still being investigated, and their biomarkers are being discovered for application in cancer diagnosis, targeted therapy, and prognosis prediction. Potential lung cancer stem cell markers mainly include surface biomarkers such as CD44, CD133, epithelial cell adhesion molecule, and ATP-binding cassette subfamily G member 2, along with intracellular biomarkers such as aldehyde dehydrogenase, sex-determining region Y-box 2, NANOG, and octamer-binding transcription factor 4. These markers have different structures and functions but are closely associated with the stem potential and uncontrollable proliferation of tumor cells. The aberrant activation of major signaling pathways, such as Notch, Hedgehog, and Wnt, may be associated with the expression and regulation of certain lung cancer stem cell markers, thus leading to lung cancer stem cell maintenance, chemotherapy resistance, and cancer promotion. Treatments targeting lung cancer stem cell markers, including antibody drugs, nanoparticle drugs, chimeric antigen receptor T-cell therapy, and other natural or synthetic specific inhibitors, may provide new hope for patients who are resistant to conventional lung cancer therapies. This review provides comprehensive and updated data on lung cancer stem cell markers with regard to their structures, functions, signaling pathways, and promising therapeutic target approaches, aiming to elucidate potential new therapies for lung cancer.

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Authors
Zheng, Y., Wang, L., Yin, L., Yao, Z., Tong, R., Xue, J., & Lu, Y.
Affiliations
Sichuan University (CN)
Venue
Frontiers in Oncology
Published
2022-05-26
Volume
12
Pages
873994-873994
ISSN
2234-943X (ISSN-L)
OpenAlex
W4281871473
Cited by
97
References
116
Citations by year
2026: 12 · 2025: 24 · 2024: 28 · 2023: 31 · 2022: 2
FWCI
2.63
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Oncology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • West China Hospital, Sichuan University
  • National Natural Science Foundation of China
Topics
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Health Sciences › Medicine › Oncology › Lung Cancer Research Studies
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
Keywords
lung cancer, cancer stem cells, stem cell markers, therapeutic target, CD44, CD133, EGFR, TAP1, aldehyde dehydrogenase, Nanog, Oct4, Notch signaling, Hedgehog signaling, Wnt signaling, chemoresistance, CAR T-cell therapy, nanoparticle drug delivery, antibody-drug conjugates

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