Oligosaccharide-linked acyl carrier protein, a novel transmethylase inhibitor, from porcine liver inhibits cell growth
- Authors
- Dong Wan Seo; Yong Kee Kim; Eun-Jung Cho; Jeung-Whan Han; Hoi Young Lee; Sungyoul Hong; Hyang-Woo Lee
- Issue Date
- Aug-2002
- Publisher
- 대한약학회
- Citation
- Archives of Pharmacal Research, v.25, no.4, pp 463 - 468
- Pages
- 6
- Journal Title
- Archives of Pharmacal Research
- Volume
- 25
- Number
- 4
- Start Page
- 463
- End Page
- 468
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/149406
- DOI
- 10.1007/bf02976603
- ISSN
- 0253-6269
1976-3786
- Abstract
- We have previously reported on the identification of the endogenous transmethylation inhibitor oligosaccharide-linked acyl carrier protein (O-ACP). In this study, the role of the transmethylation reaction on cell cycle progression was evaluated using various transmethylase inhibitors, including O-ACP. O-ACP significantly inhibited the growth of various cancer cell lines, including NIH3T3, ras-transformed NIH3T3, MDA-MB-231, HT-1376, and AGS. In addition, exposure of ras-transformed NIH3T3 to O-ACP caused cell cycle arrest at the G0/G1 phase, which led to a decrease in cells at the S phase, as determined by flow cytometry. In contrast, transmethylase inhibitors did not affect the expression of p21WAF1/Cip1, a well known inhibitor of cyclin dependent kinase, indicating that the cell cycle arrest by transmethylase inhibitors might be mediated by a p21 WAF1/Cip1-independent mechanism. Therefore, O-ACP, a novel transmethylase inhibitor, could be a useful tool for elucidating the novel role of methylation in cell proliferation and cell cycle progression.
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