ArticleWorld journal of clinical oncology2025
NOTCH1 combined with chemotherapy synergistically inhibits triple-negative breast cancer.
Article in World journal of clinical oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundChemotherapy for triple-negative breast cancer (TNBC) is often limited in efficacy due to drug resistance. The NOTCH1 pathway significantly contributes to the advancement of tumors, but its mechanism of action in sensitizing TNBC to chemotherapy and its association with the downstream molecule, NT5E, is unclear.
aimTo explore the molecular mechanisms by which NOTCH1 regulates cisplatin sensitivity in TNBC cells, and to validate its synergistic effect with NT5E.
methodsExpression of NOTCH1 in MDA-MB-231 cells was silenced using RNA interference, and the changes in cell proliferation, migration and cisplatin sensitivity were measured in combination with cell function experiments. The regulatory relationship between NOTCH1 and NT5E was analyzed using qPCR and Western blotting, and the silencing effect of NOTCH1 was verified using NT5E overexpression experiments.
resultsKnockdown of NOTCH1 hindered the growth and motility of TNBC cells and lowered cisplatin's half-maximal inhibitory concentration. Expression of NOTCH1 and NT5E was positively correlated, and NOTCH1 silencing led to a decrease in the expression of NT5E. Elevated NT5E expression attenuated the suppressive effects of NOTCH1 knockdown on both cell proliferation and cisplatin response.
conclusionNOTCH1 enhances TNBC cisplatin chemosensitivity by regulating NT5E expression. This study provides a new target and experimental basis for the development of combination therapy strategies for TNBC.
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