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안혜숙(Hye Suk An),한희창(Hee Chang Han),김하원(Ha Won Kim),현진원(Jin Won Hyun),이은방(Eun Bang Lee) 한국응용약물학회 2002 Biomolecules & Therapeutics(구 응용약물학회지) Vol.10 No.2
N/A Taurine (2-ethaneaminosulfonic acid, ^+NH_3CH_2CH_2SO_3^-) is endogenous amino acid with functions as modulator of osmoregulation, antioxidation, detoxification, transmembrane calcium transport, and a free radical scavenger in mammarian tissues. Taurine transporter(TAUT) contains 12 transmembrane helices, which are typical of the Na^+- and Cl^--dependent transporter gene family, and has been cloned recently from several species and tissues. To analyze the expression of TAUT mRNA, one step RT-PCR was performed from human and mouse cultured cell lines and from various mouse tissues. The primers were designed to encode highly conserved amino acid sequences at the second transmembrane domain and at the fourth and fifth intracellular domains. RT-PCR analysis showed both of the human intestine HT-29 and mouse macrophage RAW264.7 cell lines expressed mRNA of TAUT. To define the expression patterns of the TAUT mRNA in the murine organs, RT-PCR was performed to detect cDNA representing TAUT mRNA from seven different mouse tissues. The TAUT was detected in all of the mouse tissues analyzed such as heart, lung, thymus, kidney, liver, spleen and brain. A large amount of transcript was found from heart, liver, spleen, kidney, and brain, while lung contained a very small amount of transcript.
마우스 대식세포에서 스테로이드 호르몬과 세포내 Ca++ 이 타우린수송체의 활성에 미치는 영향
김하원(Ha Won Kim),안혜숙(Hye Suk An),이선민(Sun Min Lee),이은진(Eun Jin Lee),현진원(Jin Won Hyun),박건구(Kun Koo Park),박태선(Tae Sun Park),김병각(Byong Kak Kim) 한국응용약물학회 2001 Biomolecules & Therapeutics(구 응용약물학회지) Vol.9 No.1
N/A The activity of taurine transporter is affected by various extracellular stimuli such as ion, hormone and stress. To assess effects of steroid hormones and cyclosporin A (CsA) on the taurine transporter activity, murine monocytic RAW264.7 cell line was stimulated with dexamethasone (DM), triamcinolone (TA), cortisone (CS), hydrocortisone (HCS), prednisone (PSN), prednisolone (PSL) and methylprednisolone (MPSL) in the presence of 12-O-tetradecanoylphorbol-l3-acetate (TPA). Treatment of TPA on the cell line led to significant reduction of taurine transporter activity. However, in case of stimulation of the cells with steroid hormones in the presence of TPA, all of them recovered TPA-induced reduction of the taurine transporter activity. Treatment of the cells with CsA led to significant reduction of the taurine transporter activity. Ionomycin (IM) recovered the reduced taurine transporter activity by CsA, but failed in the presence of EDTA, a calcium chelating agent. These results showed that glucocorticoid hormone recovered TPA-induced reduction of taurine transporter activity and that IM recovered CsA-induced reduction of the transporter activity by increasing intracellular free Ca^(++) concentration.
Cordyceps militaris 로부터 분리한 Ergosterol Peroxide 의 한국인 암세포주에 대한 항암작용
김하원(Ha Won Kim),김영호(Young Ho Kim),채흥복(Xing Fu Cai),남경숙(Kyong Suk Nam),이승정(Seung Jung Lee),안혜숙(Hye Suk An),정은호(Eun Ho Jeong),윤승현(Seung Hyun Yun),성수경(Su Kyong Sung),이성진(Sung Jin Lee),현진원(Jin Won Hyun) 한국균학회 2001 韓國菌學會誌 Vol.29 No.1
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