Cited by 155Cancer Cells and MetastasisMesenchymal stem cell researchHematopoietic Stem Cell Transplantation

Elimination of human lung cancer stem cells through targeting of the stem cell factor–c-kit autocrine signaling loop

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Levina, Vera, Marrangoni, Adele, Wang, Tingting, Parikh, Simul, Su, Yunyun, Herberman, Ronald, Lokshin, Anna, Gorelik, Elieser·2010·Cancer Research

Published version of a preprint

Abstract

Cancer stem cells (CSC) are thought to be responsible for tumor initiation and tumor regeneration after chemotherapy. Previously, we showed that chemotherapy of non-small cell lung cancer (NSCLC) cells lines can select for outgrowth of highly tumorigenic and metastatic CSCs. The high malignancy of lung CSCs was associated with an efficient cytokine network. In this study, we provide evidence that blocking stem cell factor (SCF)-c-kit signaling is sufficient to inhibit CSC proliferation and survival promoted by chemotherapy. CSCs were isolated from NSCLC cell lines as tumor spheres under CSC-selective conditions and their stem properties were confirmed. In contrast to other tumor cells, CSCs expressed c-kit receptors and produced SCF. Proliferation of CSCs was inhibited by SCF-neutralizing antibodies or by imatinib (Gleevec), an inhibitor of c-kit. Although cisplatin treatment eliminated the majority of tumor cells, it did not eliminate CSCs, whereas imatinib or anti-SCF antibody destroyed CSCs. Significantly, combining cisplatin with imatinib or anti-SCF antibody prevented the growth of both tumor cell subpopulations. Our findings reveal an important role for the SCF-c-kit signaling axis in self-renewal and proliferation of lung CSCs, and they suggest that SCF-c-kit signaling blockade could improve the antitumor efficacy of chemotherapy of human NSCLC.

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Authors
Levina, V., Marrangoni, A., Wang, T., Parikh, S., Su, Y., Herberman, R., Lokshin, A., & Gorelik, E.
Affiliations
University of Pittsburgh (US)
Corresponding author
Levina, Vera
Venue
Cancer Research
Published
2010-01-01
Volume
70
Issue
1
Pages
338-346
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2093146854
Cited by
155
References
48
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 6 · 2022: 8 · 2021: 13 · 2020: 5 · 2019: 7 · 2018: 10 · 2017: 9 · 2016: 9 · 2015: 9 · 2014: 16 · 2013: 18 · 2012: 17
FWCI
6.00
Type
journal article
Language
en
Open access
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Cancer Institute (R21CA143736, R01CA098642, U01CA117452, R03CA136019, R01CA108990)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
Keywords
lung cancer stem cells, non-small cell lung cancer, stem cell factor, CD117, autocrine signaling, imatinib, cisplatin, chemoresistance, tumor spheres, self-renewal, combination therapy
MeSH terms
Imatinib Mesylate, Antineoplastic Combined Chemotherapy Protocols, Benzamides, Carcinoma, Non-Small-Cell Lung, Cells, Cultured, Cisplatin, Flow Cytometry, Humans, Image Processing, Computer-Assisted, Lung Neoplasms, Piperazines, Pyrimidines, Neoplastic Stem Cells, Signal Transduction, Proto-Oncogene Proteins c-kit, Stem Cell Factor, Autocrine Communication

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