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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Mi-Ock (Department of Microbiology, Yonsei University College of Medicine) Ahn, Ju-Mi (Department of Microbiology, Yonsei University College of Medicine) Han, Sun-Young (Department of Microbiology, Yonsei University College of Medicine)
저널정보
한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology 제6권 제3호
발행연도
1998.1
수록면
276 - 282 (7page)

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Retinoids regulate a wide variety of biological processes such as cellular proliferation and differentiation in many cell types. They have also shown to stimulate replication of several viruses including human cytomegalovirus (CMV). Retinoid signalling pathway involves two distinct subfamilies of nuclear receptors, retinoic acid receptors (RARs) and retinoid X receptors (RXRs) that bind to specific retinoic acid response elements (RAREs) in the promoter regions of retinoid-target genes. Here, we characterized RAREs in the regulatory regions of the CMV and of the hepatitis B vi.us (HBV). The viral RAREs, i.e., CMV-RARE and HBV-RARE, are composed of two consensus RARE half-sites (A/GGGTCA) arranged as a direct repeat separated by 5-bp and 1-bp, respectively. The RAREs were activated by both RAR/RXR heterodimers and RXR homodimers in transient transfection experiments. We also found that COUP-TF$\alpha$ (chicken ovalbumin upstream promoter-transcription factor u) and COUP-TF$\beta$ repressed the retinoid response of the viral elements. Further we demonstrated that previously known retinoid antagonist, SRI 1330, repressed retinoid-induced transactivation of the CMV-RARE. These results implicate Vitamin A, it's nuclear receptors and COUP-TFs as important regulators of the CMV and HBV pathogenesis and the SRl1330 as potential negative modulator of such retinoid-dependent processes.

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