CONTROLLING PROLIFERATION OF COLON CANCER CELLS THROUGH INHIBITION OF P97 - A PROTEIN INVOLVED IN DNA DAMAGE REPAIR

Quỳnh Chi Đỗ 1, Khắc Cường Bùi2,
1 Laboratory Animal Research Center, Vietnam Military Medical University
2 Trung tâm nghiên cứu động vật thực nghiệm, Học viện quân y

Main Article Content

Abstract

Objectives: DNA damage repair plays an important role in cell survival and development. Inhibition of DNA damage repair is the target of several therapeutic treatments. This study was conducted to evaluate the inhibitory effect of CB5083 on colon cancer cells, a specific inhibitor of p97 - a protein involved in the DNA damage repair. Methods: The study used CB5083, a specific p97 inhibitor, and the colon cancer cell line HCT116. Experimental assays were used including cell proliferation assay, cell migration assay, cell cycle assay by flowcytometry. Results: CB5083 inhibited HCT116 cell proliferation in vitro. CB5083 also affects cell migration and cell distribution at different phases of the cell cycle. Conclusion: CB5083, a specific inhibitor of p97 – a protein involved in DNA damage repair, has a proliferative inhibition on colon cancer cells in vitro.

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References

1. Meerang M, Ritz D, Paliwal S, et al. The ubiquitin-selective segregase VCP/p97 orchestrates the response to DNA double-strand breaks. Nat Cell Biol. Oct 23 2011; 13(11):1376-1382. DOI:10.1038/ncb2367.
2. Vaz B, Halder S, Ramadan K. Role of p97/VCP (Cdc48) in genome stability. Front Genet. 2013; 4:60. DOI:10.3389/fgene.2013.00060.
3. Raman M, Havens CG, Walter JC, Harper JW. A genome-wide screen identifies p97 as an essential regulator of DNA damage-dependent CDT1 destruction. Mol Cell. Oct 7 2011; 44(1):72-84. DOI:10.1016/j.molcel. 2011.06.036.
4. Acs K, Luijsterburg MS, Ackermann L, Salomons FA, Hoppe T, Dantuma NP. The AAA-ATPase VCP/p97 promotes 53BP1 recruitment by removing L3MBTL1 from DNA double-strand breaks. Nat Struct Mol Biol. Nov 27 2011; 18(12):1345-1350. DOI:10.1038/nsmb.2188.
5. Ramadan K. p97/VCP- and Lys48- linked polyubiquitination form a new signaling pathway in DNA damage response. Cell Cycle. Mar 15 2012; 11(6):1062-1069. DOI:10.4161/cc.11.6. 19446.
6. Mansoori B, Mohammadi A, Davudian S, Shirjang S, Baradaran B. The Different Mechanisms of Cancer Drug Resistance: A Brief Review. Adv Pharm Bull. Sep 2017; 7(3):339-348. DOI:10.15171/apb.2017.041.
7. Wang X, Wen T, Miao H, Hu W, Lei M, Zhu Y. Discovery of a new class of valosine containing protein (VCP/P97) inhibitors for the treatment of colorectal cancer. Bioorg Med Chem. Nov 15 2022; 74:117050. DOI:10.1016/j.bmc.2022.117050.
8. Dominguez-Brauer C, Thu KL, Mason JM, Blaser H, Bray MR, Mak TW. Targeting Mitosis in Cancer: Emerging Strategies. Mol Cell. Nov 19 2015; 60(4):524-536. DOI:10.1016/ j.molcel.2015.11.006.
9. Zhao Z, Wu M, Zhang X, et al. CB-5083, an inhibitor of P97, suppresses osteosarcoma growth and stem cell properties by altering protein homeostasis. Am J Transl Res. 2020; 12(6):2956-2967.
10. Bastola P, Neums L, Schoenen FJ, Chien J. VCP inhibitors induce endoplasmic reticulum stress, cause cell cycle arrest, trigger caspase-mediated cell death and synergistically kill ovarian cancer cells in combination with Salubrinal. Mol Oncol. Dec 2016; 10(10):1559-1574. DOI:10.1016/ j.molonc. 2016.09.005.