Journal of International Oncology ›› 2024, Vol. 51 ›› Issue (9): 590-594.doi: 10.3760/cma.j.cn371439-20240422-00098

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Progress in the study of the pregnane X receptor in drug resistance in breast cancer

Han Xiaoxu1, Zhang Nan2(), Liu Shuai2()   

  1. 1School of Graduate, Shandong First Medical University, Jinan 250117, China
    2Breast Centre, Central Hospital Affiliated to Shandong First Medical University, Jinan 250013, China
  • Received:2024-04-22 Revised:2024-05-07 Online:2024-09-08 Published:2024-10-12
  • Contact: Zhang Nan, Liu Shuai E-mail:zlkzn2016@126.com;discoveryliu@163.com
  • Supported by:
    Natural Science Foundation of Shandong Province of China(ZR2020MH201);Clinical Research Foundation of Shandong Medical Association—Qilu Special Project(YXH2022ZX02168);Big Data Technology Plan of Jinan Municipal Health Commission(2022-YBD-03)

Abstract:

The pregnane X receptor (PXR) is a crucial regulator of cytochrome P-450 (CYP450) expression. It is involved in oxidative stress, steroid and bile acid metabolism, inflammatory response, apoptosis, cell proliferation and other biological behaviors, and also participates in the metabolism, transport and clearance of chemotherapy drugs. After activation, PXR can affect chemotherapy drug resistance of breast cancer through genetic variation and epigenetic modification, regulation of apoptosis, and participation in phosphorylation/dephosphorylation. It may be a potential therapeutic target for patients with breast cancer resistance.

Key words: Breast neoplasms, Pregnane X receptor, Drug resistance