Cited by 73Chemokine receptors and signalingDNA Repair MechanismsMechanisms of cancer metastasis

ATM regulation of IL-8 links oxidative stress to cancer cell migration and invasion

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Chen, Wei-Ta, Ebelt, Nancy D, Stracker, Travis H, Xhemalce, Blerta, Van Den Berg, Carla L, Miller, Kyle M·2015·eLife

Abstract

Ataxia-telangiectasia mutated (ATM) protein kinase regulates the DNA damage response (DDR) and is associated with cancer suppression. Here we report a cancer-promoting role for ATM. ATM depletion in metastatic cancer cells reduced cell migration and invasion. Transcription analyses identified a gene network, including the chemokine IL-8, regulated by ATM. IL-8 expression required ATM and was regulated by oxidative stress. IL-8 was validated as an ATM target by its ability to rescue cell migration and invasion defects in ATM-depleted cells. Finally, ATM-depletion in human breast cancer cells reduced lung tumors in a mouse xenograft model and clinical data validated IL-8 in lung metastasis. These findings provide insights into how ATM activation by oxidative stress regulates IL-8 to sustain cell migration and invasion in cancer cells to promote metastatic potential. Thus, in addition to well-established roles in tumor suppression, these findings identify a role for ATM in tumor progression.

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  • ATM drives IL8 secretion by breast cancer cells independently of its DNA damage response role, promoting disease progression through autocrine or paracrine mechanisms.

    “similar lines, ATM reportedly drives IL8 secretion by breast cancer cells independently of its role in the DDR, ultimately favoring disease progression via autocrine or paracrine mechanisms (Chen et al., 2015).”

    From Immunomodulation by targeted anticancer agents (2021) · cites this paper as Chen et al., 2015

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Authors
Chen, W.-T., Ebelt, N. D., Stracker, T. H., Xhemalce, B., Van Den Berg, C. L., & Miller, K. M.
Affiliations
  • The University of Texas at Austin (US)
  • Institute for Research in Biomedicine (ES)
  • Department of Molecular Biosciences, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, United States
Corresponding author
Miller, Kyle M
Venue
eLife
Published
2015-06-01
Volume
4
ISSN
2050-084X (ISSN-L)
OpenAlex
W2099968101
Cited by
73
References
78
Citations by year
2025: 9 · 2024: 5 · 2023: 8 · 2022: 7 · 2021: 4 · 2020: 7 · 2019: 13 · 2018: 6 · 2017: 3 · 2016: 8 · 2015: 3
FWCI
2.91
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Ministerio de Economía y Competitividad (BFU2012-39521)
  • Cancer Prevention and Research Institute of Texas (CPRIT) (R116)
Topics
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mechanisms of cancer metastasis
Keywords
ATM kinase, interleukin-8, oxidative stress, tumor cell migration, tumor invasion, metastasis, lung metastasis, breast cancer, tumor progression, DNA damage response
MeSH terms
Animals, Breast Neoplasms, Cell Fractionation, Cell Movement, Electrophoresis, Polyacrylamide Gel, Female, Flow Cytometry, Humans, Luciferases, Lung Neoplasms, Neoplasm Invasiveness, Blotting, Western, Gene Expression Regulation, Neoplastic, Interleukin-8, DNA Primers, Oxidative Stress, Microarray Analysis, Chromatin Immunoprecipitation, Mice, Gene Regulatory Networks, Real-Time Polymerase Chain Reaction, Ataxia Telangiectasia Mutated Proteins

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