Abstract Title:

Ginsenoside Rd reverses cisplatin resistance in non-small-cell lung cancer A549 cells by downregulating the nuclear factor erythroid 2-related factor 2 pathway.

Abstract Source:

Anticancer Drugs. 2019 Sep ;30(8):838-845. PMID: 31415285

Abstract Author(s):

Song Chian, Yanna Zhao, Ming Xu, Xiaoling Yu, Xing Ke, Ruilan Gao, Liming Yin

Article Affiliation:

Song Chian


Clinical drug resistance to platinum-based chemotherapy is considered a major impediment in the successful treatment of non-small-cell lung cancer (NSCLC). The nuclear factor erythroid 2-related factor 2 (NRF2) signaling pathway regulates the oxidative stress response, and in many cancer types, the high constitutive expression of NRF2 leads to proliferation and chemoresistance. Ginsenoside Rd (GS-Rd) is the main active component of ginsenosides. Here, GS-Rd was found to inhibit the proliferation of A549 lung cancer cells and induce G0/G1 phase arrest. We established cisplatin (DDP)-resistant A549 cell lines (A549/DDP). The half maximal inhibitory concentrations of DDP, gemcitabine, and adriamycin were much higher in A549/DDP cells than in A549 cells. The A549/DDP cell lines developed multidrug resistance, accompanied by activation of multidrug resistance protein 1 and multidrug resistance-associated protein 1, as well as NRF2 and its target genes. Treatment with GS-Rd inhibited the NRF2 pathway and significantly sensitized A549/DDP cells to therapeutic drugs. In addition, NRF2 knockdown attenuated the synergistic effects of GS-Rd in both A549 and A54/DDP cells. Taken together, these data show that NRF2 plays an important role in acquired drug resistance in NSCLC, and GS-Rd may ameliorate this chemoresistance by downregulating the NRF2 pathway. This study demonstrates that the NRF2 pathway may serve as a therapeutic target in NSCLC, and ginseng compounds may be effective for the treatment of this disease.

Study Type : In Vitro Study

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