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Kim JS, Kim AY, Shin HM, Ahn SI, Shim HJ, Nam KW, Hwang KA, Youn HS. Aster yomena suppresses LPS-induced cyclooxygenase-2 and inducible nitric oxide synthase expression. FOOD AGR IMMUNOL 2016. [DOI: 10.1080/09540105.2016.1251395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Ji-Soo Kim
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Ah-Yeon Kim
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Hyeon-Myeong Shin
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Sang-Il Ahn
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Hyun-Jin Shim
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Kung-Woo Nam
- Department of Life Science and Biotechnology, College of Natural Science, Soonchunhyang University, Asan, Republic of Korea
| | - Kyung-A Hwang
- Department of Agrofood Resources, National Academy of Agricultural Science, RDA, Wanju, Republic of Korea
| | - Hyung-Sun Youn
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
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Ahn SI, Kim JS, Gu GJ, Shin HM, Kim AY, Shim HJ, Kim YJ, Koh KO, Mang JY, Kim DY, Youn HS. Suppression of Toll-Like Receptor 4 Dimerization by 1-[5-Methoxy-2-(2-nitrovinyl)phenyl]pyrrolidine. Arch Pharm (Weinheim) 2016; 349:785-790. [DOI: 10.1002/ardp.201600159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/21/2016] [Accepted: 07/26/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Sang-Il Ahn
- Department of Medical Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
| | - Ji-Soo Kim
- Department of Medical Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
| | - Gyo-Jeong Gu
- Department of Medical Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
| | - Hyeon-Myeong Shin
- Department of Biomedical Laboratory Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
| | - Ah-Yeon Kim
- Department of Biomedical Laboratory Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
| | - Hyun-Jin Shim
- Department of Biomedical Laboratory Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
| | - Yeon Joo Kim
- Department of Chemistry, College of Natural Sciences; Soonchunhyang University; Asan-Si Chungnam Republic of Korea
| | - Kwang Oh Koh
- Department of Chemistry, College of Natural Sciences; Soonchunhyang University; Asan-Si Chungnam Republic of Korea
| | - Joo Yang Mang
- Department of Chemistry, College of Natural Sciences; Soonchunhyang University; Asan-Si Chungnam Republic of Korea
| | - Dae Young Kim
- Department of Chemistry, College of Natural Sciences; Soonchunhyang University; Asan-Si Chungnam Republic of Korea
| | - Hyung-Sun Youn
- Department of Medical Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
- Department of Biomedical Laboratory Science, College of Medical Sciences; SoonChunHyang University; Chungnam Asan Republic of Korea
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Ahn SI, Kim JS, Hong CY, Gu GJ, Shin HM, Jeong HJ, Koh KO, Mang JY, Kim DY, Youn HS. 1-[4-Fluoro-2-(2-nitrovinyl)phenyl]pyrrolidine Suppresses Toll-Like Receptor 4 Dimerization Induced by Lipopolysaccharide. J Immunoassay Immunochem 2016; 37:307-15. [PMID: 26744907 DOI: 10.1080/15321819.2015.1135162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Toll-like receptor 4 (TLR4) recognizes LPS and triggers the activation of the myeloid differential factor 88 (MyD88)- and toll-interleukin-1 receptor domain-containing adapter, inducing interferon-β (TRIF)-dependent major downstream signaling pathways. Previously, we presented biochemical evidence that 1-[4-Fluoro-2-(2-nitrovinyl)phenyl]pyrrolidine (FPP), which was synthesized in our laboratory, inhibits NF-κB activation induced by LPS. Here, we investigated whether FPP modulates the TLR4 downstream signaling pathways and what anti-inflammatory target in TLR4 signaling is regulated by FPP. FPP inhibited LPS-induced NF-κB activation by targeting TLR4 dimerization. These results suggest that FPP can modulate the TLR4 signaling pathway at the receptor level to decrease inflammatory gene expression.
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Affiliation(s)
- Sang-Ii Ahn
- a Department of Medical Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Ji-Soo Kim
- a Department of Medical Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Chae-Yeon Hong
- b Department of Biomedical Laboratory Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Gyo-Jeong Gu
- a Department of Medical Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Hyeon-Myeong Shin
- b Department of Biomedical Laboratory Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Hyun Jung Jeong
- c Department of Chemistry , College of Natural Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Kwang Oh Koh
- c Department of Chemistry , College of Natural Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Joo Yang Mang
- c Department of Chemistry , College of Natural Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Dae Young Kim
- c Department of Chemistry , College of Natural Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
| | - Hyung-Sun Youn
- a Department of Medical Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea.,b Department of Biomedical Laboratory Science , College of Medical Sciences, SoonChunHyang University , Asan-Si , Chungnam , Republic of Korea
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Ahn SI, Kim JS, Hong CY, Gu GJ, Shin HM, Paek JH, Kim S, Lim SS, Youn HS. Eupatorium makinoisuppresses toll-like receptor signaling pathways. FOOD AGR IMMUNOL 2015. [DOI: 10.1080/09540105.2015.1086315] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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