Comparison of anticancer effects of HDAC inhibitors CG-745 and SAHA in non-small lung cancer cells.

IF 2.5 Q2 RESPIRATORY SYSTEM Tuberculosis and Respiratory Diseases Pub Date : 2025-02-13 DOI:10.4046/trd.2024.0090

Hyo Jin Kim, Ui Ri An, Han Jee Yoon, Hyun Lim, Ki Eun Hwang, Young Suk Kim, Hak Ryul Kim

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Abstract

Background: Histone deacetylase (HDAC) inhibition offers the potential for anti-cancer effects in a variety of cancers, since HDAC plays an important role in cancer development and progression. Thus, we demonstrated the therapeutic efficacy of the new HDAC inhibitor, CG-745, in comparison with existing HDAC inhibitors, such as suberoylanilide hydroxamic acid (SAHA) in non-small lung cancer (NSCLC) cells.

Methods: The effect of CG-745 on apoptosis and reactive oxygen species (ROS) dependent mitochondrial dysfunction in human A549 and H460 cells was investigated by Annexin V assay, MitoSoX and Western blot. Also, to confirm HDAC expression, it was analyzed using real-time PCR. To confirm the inhibitory effect of EMT on CG-745 by TGF-β1, Western blot, scratch analysis, and matrigel invasion analysis were performed.

Results: Compared to SAHA, CG-745 inhibited cell viability and mRNA expression of HDACs such as HDAC1, HDAC2, HDAC3 and HDAC8. It also caused apoptosis, ROS and mitochondrial dysfunction in a concentration-dependent manner. CG-745 reversed EMT induced by TGF-β1 in A549 and H460 cells, and inhibited migration and invasion increased by TGF-β1. CG-745 has been shown to inhibit EMT and induce apoptosis in NSCLC cells.

Conclusion: It suggests that CG-745 could be a new treatment strategy for treatment of NSCLC.

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