Glucosamine (GlcN) derivative, GNK407 suppressed lipopolysaccharide (LPS)-induction of inflammatory genes such as inducible nitric oxide synthase (iNOS), Cyclooxygenase-2 (COX-2), interleukin-6 (IL-6), interleukin-1beta (IL-1 β) in mouse macrophage cell line (RAW 264.7). GNK407 inhibited LPS-induced activation of nuclear factor-kB (NF-kB). The inhibitory effect of GNK407 was mediate by inhibition of p65 DNA binding to NF-kB binding sequence of iNOS promoter in RAW 264.7 cells. Additionally, p65 is O-GlcNAcylated by LPS, and this modification suppressed by GNK407 in RAW 264.7 cells. Taken together, GNK407 inhibited LPS-induced inflammatory responses by suppressing NF-kB activation potentially through the inhibition LPS-induced upregulation of p65 O-GlcNAcylation. Our finding suggest that GNK407 may serve as novel anti-inflammatory agent.
저자
Jin-A Shin [ Department of Physiology and Biophysics, Inha University, College of Medicine, Incheon, Korea. ]
Ji-Sun Hwang [ Department of Physiology and Biophysics, Inha University, College of Medicine, Incheon, Korea. ]
Song-Yi Kim [ Department of Physiology and Biophysics, Inha University, College of Medicine, Incheon, Korea. ]
Inn-Oc Han [ Department of Physiology and Biophysics, Inha University, College of Medicine, Incheon, Korea. ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.