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Expression and characterization of the flavoprotein domain of gp91phox
Chang-Hoon Han and Mun-Han Lee 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2000, 제 1권 제 1호 3 19-26 (8 pages)
Truncated forms of gp91(phox) were expressed in E. coli in which the N-terminal hydrophobic transmembrane region was replaced with a portion of the highly soluble bacterial protein thioredoxin (TRX). TRX-gp91(phox) (306-569), which contains the putative FAD and NADPH binding sites, showed NADPH-dependent NBT (nitroblue tetrazolium) reductase activity, whereas TRX-gp91(phox) (304-423) and TRX-gp91(phox) (424-569) were inactive. Activity saturated at about a 1:1 molar ratio of FAD to... -
Enhanced Expression of Cell Adhesion Molecules in the Aorta of Diabetic Mice is Mediated by gp91phox-derived Superoxide
MiRanYun, JongJaeKim, SunMiLee, HyeJinHeo, SunSikBae, ChiDaeKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.2 6 109-116 (8 pages)
in control aorta (0.9⁑0.5 and 1.6⁑0.3, respectively), accompanied with the enhanced expression of gp91phox, a membrane subunit of NAD(P)H oixdase. Furthermore, there was a strong positive correlation (r=0.89, P＜0.01 in ICAM-1 and r=0.88, P＜0.01 in VCAM-1) between ICAM-1/VCAM-1 expression and vascular production of superoxide. The present data indicate that the increased production of superoxide via NAD(P)H oxidase may explain the enhanced expression of CAM in diabetic vasculatures. -
Activation domain in P67phox regulates the steady state reduction of FAD in gp91phox
Chang-Hoon Han, Mun-Han Lee 대한수의학회 Journal of Veterinary Science 5 Pages
대한수의학회 Journal of Veterinary Science 2000, 제 1권 제 1호 4 27-31 (5 pages)
An activation domain in p67(phox) (residues 199-210) is critical for regulating NADPH oxidase activity in cell-free system [10] To determine the steady state reduction of FAD, thioacetamide-FAD was reconstituted in gp91(phox), and the fluorescence of its oxidised form was monitored. Omission of p67(phox) decreased the steady state reduction of the FAD from 28% to 4%, but omission of p47(phox) had little effect. A series of the truncated forms of p67(phox) were expressed in E.coli to determine... -
4-O-methylhonokiol Attenuates Oxidative Stress that Triggers Teratogenesis of Embryos in Cultured Mouse Embryos Exposed to Nicotine
Lee Wha Gwon, Chunmei Lin, Jung Min Yon, Seul Gi Park, Sl Bi Chu, Beom Jun Lee, Young Won Yun, Sang Yoon Nam 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 118 199-200 (2 pages)
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Lycopene Inhibits Nicotine-induced Embryo Anomalies Via Antioxidative, Anti-apoptotic, and Anti-inflammatory Activities
Seul Gi Park, Chunmei Lin, Sl Bi Chu, Jung Min Yon, Lee Wha Gwon, Beom Jun Lee, Young Won Yun, Sang Yoon Nam 대한수의학회 대한수의학회 학술대회발표집 1 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 117 199-199 (1 pages)
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Vibrio vulnificus VvhA Induces Mitochondrial Cell Death Via Lipid Raft-mediated ROS Production and NF-kB Activation in Intestinal Epithelial Cells
Young Hyun Jung, Sei Jung Lee, Hyun Jik Lee, Dah Ihm Kim, Jeong Yeon Kim, Ing Ing Chai, Gee Euhn Choi, Ho Jae Han 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 116 198-199 (2 pages)
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Dieckol Attenuates Microglia-mediated Neuronal Cell Death via ERK, Akt and NADPH Oxidase-mediated Pathways
YanjiCui, Jee-YunPark, JinjiWu, JiHyungLee, Yoon-SilYang, Moon-SeokKang, Sung-CherlJung, JooMinPark, Eun-SookYoo, Seong-HoKim, SangmeeAhnJ 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.3 5 219-228 (10 pages)
1 μg/ml)-stimulated BV-2 microglia. In addition, DEK markedly attenuated Akt phosphorylation and increased expression of gp91phox, which is the catalytic component of NADPH oxidase complex responsible for microglial reactive oxygen species (ROS) generation. Finally, DEK significantly attenuated neuronal cell death that is induced by treatment of microglial conditioned media containing neurotoxic secretary molecules. These neuroprotective effects of DEK were also confirmed in a neuron-microglia... -
Expression and Activity of the Na-K ATPase in Ischemic Injury of Primary Cultured Astrocytes
MiJungKim, JinyoungHur, In-HyeHam, HyeJinYang, YounghoonKim, SeungjoonPark, Young-WukCho 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.4 4 275-281 (7 pages)
Astrocytes are reported to have critical functions in ischemic brain injury including protective effects against ischemia-induced neuronal dysfunction. Na-K ATPase maintains ionic gradients in astrocytes and is suggested as an indicator of ischemic injury in glial cells. Here, we examined the role of the Na-K ATPase in the pathologic process of ischemic injury of primary cultured astrocytes. Chemical ischemia was induced by sodium azide and glucose deprivation. Lactate dehydrogenase assays... -
Involvement of NAD(P)H Oxidase in a Potential Link between Diabetes and Vascular Smooth Muscle Cell Proliferation
HyeYoungJeong, MiRanYun, ChiDaeKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2003, Vol.7 No.2 9 103-109 (7 pages)
The cellular mechanisms that contribute to the acceleration of atherosclerosis in diabetes are poorly understood. Therefore, the potential mechanisms involved in the diabetes-dependent increase in vascular smooth muscle cell (VSMC) proliferation was investigated. Using primary culture of VSMC from streptozotocin-induced diabetic rat aorta, cell proliferation assay showed two-fold increase in cell number accompanied with enhanced superoxide generation compared to normal VSMC, 2 days after...
