Acta Anatomica Sinica ›› 2023, Vol. 54 ›› Issue (6): 695-702.doi: 10.16098/j.issn.0529-1356.2023.06.011

• Cancer Biology • Previous Articles     Next Articles

Effect of serine protease inhibitor Kazaltype 1 on the proliferation of hepatocellular carcinoma cell and its mechanism

ZHAO Wei-ming  LI Xiao  YU Guo-ying  WANG Gai-ping  CHANG Cui-fang*   

  1. Collage of Life Sciences, He’nan Normal University, State Key Laboratory for Cell Differentiation and Regulation, Henan Xinxiang 453007, China
  • Received:2022-07-05 Revised:2022-11-02 Online:2023-12-06 Published:2023-12-06
  • Contact: Cui-Fang CHANG E-mail:changcuifang@126.com

Abstract:

Objective  To explore the effect of serine protease inhibitor Kazal-type 1(SPINK1) on the proliferation of hepatocellular carcinoma cells RH-35 and its underling molecular mechanism.   Methods Spink1 gene expression in liver cancer and rat liver cancer models were analyzed by Gene Expression Omnibus (GEO) data, RH-35 cells were treated with rrSPINK1 protein, the effect of rrSPINK1 on the proliferation and apoptosis of RH-35 cells was explored by MTT, 2’-deoxy-5-ethynyluridine(EdU) and flow cytometry, the molecular mechanism of SPINK1 regulating liver cancer were detected by Real-time PCR and Western blotting.   Results The results showed that Spink1 gene was over-expressed significantly in liver cancer and rat liver cancer models, rrSPINK1-treated RH-35 cells showed increased viability, EdU-positive cell rate, and the proportion of cells in S phase and G2/M phase compared to the control group. However, there was no significant difference in RH-35 cell apoptosis. rrSPINK1 up-regulated the expression of p38 MAPK and STAT pathway-related genes/proteins in RH-35 cells; and the expression of Spink1 gene in liver cancer was positively correlated with that of Mpak13, Stat1 and Stat3 genes.  Conclusion SPINK1 may promote the expression of p38 MAPK and Januk kinase/signal transducers and activators of transcription(JAK/STAT), and promote the proliferation of hepatocellular carcinoma cells.

Key words: Serine protease inhibitor Kazal-type 1, Liver cancer, Cell proliferation, Flow cytometry, Human, Rat

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