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논문 기본 정보

자료유형
학술저널
저자정보
Kim Jong-Hui (Department of Physiology, Institute of Bioscience and Biotechnology, Kangwon National University School of Medicine, Chuncheon 24341, KoreaInterdisciplinary Graduate Program in BIT Medical C) Hwang Soobeen (Department of Physiology, Institute of Bioscience and Biotechnology, Kangwon National University School of Medicine, Chuncheon 24341, KoreaInterdisciplinary Graduate Program in BIT Medical C) Park Seo-In (Department of Physiology, Institute of Bioscience and Biotechnology, Kangwon National University School of Medicine, Chuncheon 24341, KoreaInterdisciplinary Graduate Program in BIT Medical C) Lee Hyo-Ji (Department of Biological Sciences and Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Korea) Jung Yu-Jin (Interdisciplinary Graduate Program in BIT Medical Convergence, Chuncheon 24341, KoreaDepartment of Biological Sciences and Kangwon Radiation Convergence Research Support Center, Kangwon Nati) Jo Su-Hyun (Department of Physiology, Institute of Bioscience and Biotechnology, Kangwon National University School of Medicine, Chuncheon 24341, KoreaInterdisciplinary Graduate Program in BIT Medical C)
저널정보
대한약리학회 The Korean Journal of Physiology & Pharmacology The Korean Journal of Physiology & Pharmacology 제28권 제4호
발행연도
2024.7
수록면
323 - 333 (11page)
DOI
10.4196/kjpp.2024.28.4.323

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Polychlorinated biphenyls (PCBs) were once used throughout various industries; however, because of their persistence in the environment, exposure remains a global threat to the environment and human health. The Kv1.3 and Kv1.5 channels have been implicated in the immunotoxicity and cardiotoxicity of PCBs, respectively. We determined whether 3,3′,4,4′-tetrachlorobiphenyl (PCB77), a dioxin-like PCB, alters human Kv1.3 and Kv1.5 currents using the Xenopus oocyte expression system. Exposure to 10 nM PCB77 for 15 min enhanced the Kv1.3 current by approximately 30.6%, whereas PCB77 did not affect the Kv1.5 current at concentrations up to 10 nM. This increase in the Kv1.3 current was associated with slower activation and inactivation kinetics as well as right-shifting of the steady-state activation curve. Pretreatment with PCB77 significantly suppressed tumor necrosis factor-α and interleukin-10 production in lipopolysaccharide-stimulated Raw264.7 macrophages. Overall, these data suggest that acute exposure to trace concentrations of PCB77 impairs immune function, possibly by enhancing Kv1.3 currents.

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