Lycorine upregulates the expression of RMB10, promotes apoptosis and inhibits the proliferation and migration of cervical cancer cells

Int J Mol Med. 2022 Dec;50(6):145. doi: 10.3892/ijmm.2022.5201. Epub 2022 Nov 11.

Abstract

Although there are numerous treatment strategies, including surgery and chemotherapy, the prognosis of cervical cancer remains far from satisfactory. There is an urgent need to develop more effective, more tolerable and safer therapeutics for the treatment of cervical cancer. Lycorine is a natural plantextract that has been previously found to confer anti‑tumor activities. Therefore, in the present study, the effects of lycorine and its possible mechanism of action in cervical cancer were investigated. Cell Counting Kit‑8, wound healing and Transwell assays were used to verify the proliferation and migration of HeLa cells following lycorine intervention. The results demonstrated that lycorine significantly inhibited the proliferation and migration of HeLa cells. RNA binding motif 10 (RBM10) is a protein associated with apoptosis. It has been suggested that lycorine can affect the expression of RBM10. Flow cytometry demonstrated that lycorine may inhibit the initiation and progression of cervical cancer by promoting apoptosis, which may be mediated through the upregulation of RBM10 expression and increasing TNF‑α levels. Xenograft mouse experiments indicated that when lycorine was injected through the tail vein, HeLa tumor growth was inhibited. Mechanistically, western blotting demonstrated that lycorine significantly inhibited the activation of the Akt signaling pathway and potentially reversed epithelial‑mesenchymal transition, which was also mediated by RBM10. Furthermore, following RBM10 knockdown with small interfering‑RNA, the inhibitory effects of lycorine on cervical cancer was significantly abrogated. Overall, results of the present study suggest that lycorine can upregulate the expression of RBM10 and inhibit the proliferation and migration of cervical cancer cells.

Keywords: Akt signaling pathway; RNA binding motif 10; apoptosis; cervical cancer; lycorine.

MeSH terms

  • Animals
  • Apoptosis
  • Cell Line, Tumor
  • Cell Movement
  • Cell Proliferation
  • Female
  • Gene Expression Regulation, Neoplastic
  • HeLa Cells
  • Humans
  • Mice
  • Phenanthridines* / pharmacology
  • RNA-Binding Proteins* / genetics
  • Uterine Cervical Neoplasms* / drug therapy
  • Uterine Cervical Neoplasms* / genetics

Substances

  • lycorine
  • RBM10 protein, human
  • RNA-Binding Proteins
  • Phenanthridines

Grants and funding

The present study was supported by the National Natural Science Foundation of China (grant no. 81402298), the Young Scholars Program of the Shandong University, the opening project of the Collaborative Innovation Center for classic and famous prescriptions of traditional Chinese medicine in Shandong Province entitled 'Functional mechanism of Chaihu Guizhi Ganjiang Decoction in the treatment of Sjögren's syndrome' (grant no. 2019KFY10) and the project 'Research on the functional mechanism of stem cell exosomes in the treatment of Sjögren's syndrome' of Shandong Jiekai Biotechnology Co., Ltd. (grant no. 1350022002).