VDUP1 upregulated by TGF-beta 1 and 1,25-dihydorxyvitamin D-3 inhibits tumor cell growth by blocking cell-cycle progression
- Authors
- Han, SH; Jeon, JH; Ju, HR; Jung, U; Kim, KY; Sook, H; Yoo, HS; Lee, YH; Song, KS; Hwang, HM; Na, YS; Yang, Y; Lee, KN; Choi, I
- Issue Date
- Jun-2003
- Publisher
- NATURE PUBLISHING GROUP
- Keywords
- Cell cycle; PLZF; TGF-β1; Tumor; VDUP1
- Citation
- ONCOGENE, v.22, no.26, pp 4035 - 4046
- Pages
- 12
- Journal Title
- ONCOGENE
- Volume
- 22
- Number
- 26
- Start Page
- 4035
- End Page
- 4046
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/149141
- DOI
- 10.1038/sj.onc.1206610
- ISSN
- 0950-9232
1476-5594
- Abstract
- Vitamin D-3 upregulated protein 1 (VDUP1) is a 1,25-dihydroxyvitamin D-3 (1,25(OH)(2)D-3) upregulated protein, and it is induced by various stresses. In human tumor tissues, VDUP1 expression was downregulated. Upon stimulation by growth-inhibitory signals such as TGF-beta1 and 1,25(OH)(2)D-3, its expression was rapidly upregulated as the cell growth was retarded. The transfection of VDUP1 in tumor cells reduced cell growth. The VDUP1 expression was also increased when the cell-cycle progression was arrested. Transfection of VDUP1 induced cell-cycle arrest at the G0/G1 phase, indicating that VDUP1 possesses a tumor-suppressive activity. In addition, it was found that VDUP1 interacted with promyelocytic leukemia zinc-finger, Fanconi anemia zinc-finger, and histone deacetylase 1, which are known to be transcriptional corepressors. VDUP1 itself suppressed IL-3 receptor and cyclin A2 promoter activity. Taken together, these results suggest that VDUP1 is a novel antitumor gene which forms a transcriptional repressor complex.
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