Cited by 93PARP inhibition in cancer therapyPI3K/AKT/mTOR signaling in cancerDNA Repair Mechanisms

Phosphoinositide 3-kinase inhibitors induce DNA damage through nucleoside depletion

Open access
Juvekar, Ashish, Hu, Hai, Yadegarynia, Sina, Lyssiotis, Costas A., Ullas, Soumya, Lien, Evan C., Bellinger, Gary, Son, Jaekyoung +8 more·2016·Proceedings of the National Academy of Sciences

Abstract

Significance: Mutations in the PI3K pathway are highly prevalent in cancers, and isoform-specific and pan-PI3K inhibitors have entered clinical trials in both solid and hematologic malignancies. The PI3K δ-specific inhibitor idelalisib (in combination with rituximab) was recently approved for the treatment of chronic lymphocytic leukemia. However, identifying tumor types and biological mechanisms that predict for response to PI3K inhibitors as single agents or in combination has been a challenge. Our data indicate that PI3K inhibitors induce DNA damage in tumors that have defects in DNA damage-repair pathways and that they do so by impairing the production of Rib phosphate and amino acids needed for deoxynucleotide synthesis.

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  • Inhibiting oncogenic signaling with PI3K inhibitors depletes DNA nucleotides, decreases DNA synthesis, and causes DNA damage.

    “Conversely, inhibiting oncogenic signaling using PI3K inhibitors, has been found to deplete DNA nucleotides, decrease DNA synthesis, and cause DNA damage (Juvekar et al., 2016).”

    From Targeting Metabolism for Cancer Therapy (2017) · cites this paper as Juvekar et al., 2016

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Authors
Juvekar, A., Hu, H., Yadegarynia, S., Lyssiotis, C. A., Ullas, S., Lien, E. C., Bellinger, G., Son, J., Hok, R. C., Seth, P., Daly, M. B., Kim, B., Scully, R., Asara, J. M., Cantley, L. C., & Wulf, G. M.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • Weill Cornell Medicine (US)
  • Yale University (US)
  • Asan Medical Center (KR)
  • Emory University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2016-07-08
Volume
113
Issue
30
Pages
E4338-47
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2474366905
Cited by
93
References
40
Citations by year
2026: 7 · 2025: 5 · 2024: 9 · 2023: 8 · 2022: 9 · 2021: 8 · 2020: 15 · 2019: 15 · 2018: 7 · 2017: 10
FWCI
5.74
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Breast Cancer Research Foundation (NA)
  • Mary Kay Foundation (NA)
  • Breast Cancer Alliance (NA)
  • Men's Initiative DFHCC (NA)
  • Stand Up to Cancer Dream Team Translational Research Award (SU2C-AACR-DT0209)
  • HHS | National Institutes of Health (R01 GM041890, 5P01CA120964-05, 5P30CA006516-46, GM104198, AI049781, NIHP50 CA168504)
Topics
  • Health Sciences › Medicine › Oncology › PARP inhibition in cancer therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
PI3K inhibitors, DNA damage, nucleotide depletion, nucleoside triphosphates, AKT inhibition, pentose phosphate pathway, ribose-5-phosphate, DNA synthesis, DNA repair, BRCA1, TP53, triple-negative breast cancer, PARP inhibitors, combination therapy, BKM120, carbon flux
MeSH terms
Poly(ADP-ribose) Polymerase Inhibitors, Phosphoinositide-3 Kinase Inhibitors, Aminopyridines, Animals, Antineoplastic Combined Chemotherapy Protocols, DNA Damage, DNA, Neoplasm, Female, Humans, Mice, Inbred C57BL, Morpholines, Nucleosides, Mice, SCID, Mice, Inbred NOD, Mice, Knockout, Cell Line, Tumor, Cell Proliferation, Phosphatidylinositol 3-Kinase, Triple Negative Breast Neoplasms

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