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Jurkat T 임파구의 세포주기 기전에 미치는 저근백피 ( Ailanthus altissima)의 효과
황상구(Sang Gu Hwang),이형철(Hyung Chul Lee),김춘관(Chun Kwan Kim),김대근(Dae Geun Kim),이기옥(Gi Oug Lee),윤용갑(Young Gab Yun),전병훈(Byung Hun Jeon) 대한약학회 2002 약학회지 Vol.46 No.1
Ailanthus altissima has been used to settle an upset stomach, to alleviate a fever and as an insecticide. We reported that the water extract of A. altissima induced apoptotic cell death in Jurkat T.acute Iymphoblastic leukemia cells. Herel we showed the dose-dependent inhibitions of cell viability by the extract, as measured by cell morphology The cell cycle contro1 genes are considered to play important roles in tumorigenesis. The purpose of the present study is also to investigale the effect ot A. altissima on cell cycle progression and its molecular mechanism in the cells. The level of p21-proleln was Increased after treatment ot the extract, whereas both Bcl-2 and Bax protein levels were not changed. These resu1ts suggest that A. altissima Induces apoptotic cel1 death via p2l- dependent signaling pathway in furkat cells which oelete wlld type p53 checkpoint related gene products tested (cyclin D3, cyclin dependent kinase 4, retinoblastoma E2F1) were decreased In their. Protein levels in a dose-dependent manner after treatment of the extract. Taken together, these resu1ts inulcate that the increase of apoptotlc cell death by A. altissima may be due to the inhibition of cell cycle in Jurkat cells.
부유세균에 대한 살균기능을 가진 조명등기구에 관한 연구
황상구(Sang-Gu Hwang),최홍규(Hong-Kyoo Choi),송영주(Young-Joo Song),윤철구(Cheol-Gu Yoon),이정은(Jung-Eun Lee),신혜영(Hye-Young Shin) 한국조명·전기설비학회 2010 한국조명·전기설비학회 학술대회논문집 Vol.2010 No.9월
조명기구에 살균장치를 부착하여 설치함으로써 별도의 환기장치를 시설하는데 드는 경제적 비용을 줄일 수 있다. 따라서 본 논문에서는 실내공기오염을 별도의 환기장치를 시설하지 않고 자외선 살균시스템을 내장한 조명기구를 일반조명과 겸용으로 설치하여 실내 공기의 오염을 지속적으로 제거할 수 있는 공기살균겸용 조명등기구를 제안하였다. 또한 실내 공간 내에 공기살균기능을 가진 조명등기구를 일정량 설치하고 이에 대한 효과를 입증하였다.
백혈병세포주 Jurkat T 세포에서 합환피 Albizzia julibrissin 물 추출물의 아포토시으 유도 효과
황상구(Sang Gu Hwang),이형철(Hyung Chul Lee),김춘관(Chun Kwan Kim),김용익(Yong Ik Kim),주성민(Sung Min Ju),김원신(Won Sin Kim),전병훈(Byung Hun Jeon) 대한약학회 2001 약학회지 Vol.45 No.6
Apoptosis is a morphologically and biochemically distinct form of cell death that occurs in many different cell types in a wide variety of organisms.Albizzia julibrissin belonging the family Leguminosae has been used for the treatment of contusion, sore throat, amnesia, and insomnia in oriental traditional medicine. This study investigates whether the water extract of A. julibrissin induce apoptotic cell death in Jurkat T-acute Iymphoblastic leukemia (ALL) cells. Jurkat cells were increased inhibitions of cell viability in a concentration-dependent manner by A. julibrissin. This herbal medicine also caused apoptosis as measured by cell morphology and DNA fragmentation. The capability of A. julibrissin to induce apoptosis was associated with proteolytic cleavage of specific target protein such as poly (ADP-ribose) polymerase (PARP) protein suggesting the possible involvement of caspases. Our result showed that Bcl-2 and Bax protein levels were not changed in all A. julibrissin-treated groups compared to control group. These results suggest that A. julibrissin-mediated apoptosis is independent with Bcl-2 related signaling pathway in this cells.
저근백피(Ailanthus altissima) 물 추출물에 의한 급성림프성백혈병 Jurkat T Lymphocytes의 세포고사 유도
황상구,이형철,김춘관,천현자,정승일,전병훈,Hwang, Sang-Gu,Lee, Hyung-Chul,Kim, Chun-Kwan,Chun, Hyun-Ja,Jeung, Seung-Il,Jeon, Byung-Hun 한국생약학회 2001 생약학회지 Vol.32 No.4
Ailanthus altissima belonging to the family Simaroubaceae has been used to settle an upset stomach, to combat a fever, and as an insecticide. Apoptosis is an active process, which is a critical feature of the regulated development of multicellular organisms. We investigated whether the extract of A. altissima induced apoptotic cell death in Jurkat T-acute lymphoblastic leukemia (ALL) cells. Upon treatments with the extract, the dose-dependent inhibitions of cell viability were observed. It also caused apoptosis as measured by cell morphology and DNA fragmentation. The capability of the extract to induce apoptosis was associated with proteolytic cleavage of specific target protein such as poly(ADP-ribose)polymerase (PARP) protein, suggesting the possible involvement of the activations of caspases. Further study showed that Bcl-2 protein levels were not changed in all treated groups compared to control group. These results suggest that A. altissima induces Bcl- 2-independent apoptosis in Jurkat T cells.