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Inhibitory effect of dibutyryl chitin ester on nitric oxide and prostaglandin E₂ production in LPS-stimulated RAW 264.7 cells.
Arch Pharm Res. 2012 Jul; 35(7):1287-92.AP

Abstract

Inflammation is a highly complex process that protects against foreign challenge or tissue injury. The ester derivative dibutyryl chitin (DBC) reportedly accelerates wound healing and exerts an anti-inflammatory effect. However, little is known regarding the inhibitory effect of DBC in anti-inflammation. In this study, we investigated the effect of DBC on the inducible nitric oxide synthetase (iNOS) and cyclooxygenage-2 (COX-2) pathways and pro-inflammatory cytokine production in lipopolysaccharide (LPS)-treated RAW 264.7 macrophages. Our results demonstrate that DBC (MW 3,772) significantly inhibits overproduction of NO and PGE(2) as well as pro-inflammatory cytokines, such as tumor necrosis factor-α and interleukin-1β, in LPS-stimulated RAW 264.7 macrophages. Inhibition of NO and PGE(2) overproduction in LPSstimulated RAW 264.7 macrophages by DBC was mediated through the down-regulation of iNOS and COX-2 expression. These results demonstrate that DBC efficiently inhibits inflammation and has potential as an effective anti-inflammatory and wound healing agent.

Authors+Show Affiliations

School of Alternative Medicine & Health Science, College of Alternative Medicine, Jeonju University, Jeonju 560-759, Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22864752

Citation

Jeon, In Hwa, et al. "Inhibitory Effect of Dibutyryl Chitin Ester On Nitric Oxide and Prostaglandin E₂ Production in LPS-stimulated RAW 264.7 Cells." Archives of Pharmacal Research, vol. 35, no. 7, 2012, pp. 1287-92.
Jeon IH, Mok JY, Park KH, et al. Inhibitory effect of dibutyryl chitin ester on nitric oxide and prostaglandin E₂ production in LPS-stimulated RAW 264.7 cells. Arch Pharm Res. 2012;35(7):1287-92.
Jeon, I. H., Mok, J. Y., Park, K. H., Hwang, H. M., Song, M. S., Lee, D., Lee, M. H., Lee, W. Y., Chai, K. Y., & Jang, S. I. (2012). Inhibitory effect of dibutyryl chitin ester on nitric oxide and prostaglandin E₂ production in LPS-stimulated RAW 264.7 cells. Archives of Pharmacal Research, 35(7), 1287-92. https://doi.org/10.1007/s12272-012-0720-8
Jeon IH, et al. Inhibitory Effect of Dibutyryl Chitin Ester On Nitric Oxide and Prostaglandin E₂ Production in LPS-stimulated RAW 264.7 Cells. Arch Pharm Res. 2012;35(7):1287-92. PubMed PMID: 22864752.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Inhibitory effect of dibutyryl chitin ester on nitric oxide and prostaglandin E₂ production in LPS-stimulated RAW 264.7 cells. AU - Jeon,In Hwa, AU - Mok,Ji Ye, AU - Park,Kwang-Hyun, AU - Hwang,Hee Min, AU - Song,Mi Seon, AU - Lee,Duckhee, AU - Lee,Min Hee, AU - Lee,Woo-Yiel, AU - Chai,Kyu Yun, AU - Jang,Seon Il, Y1 - 2012/08/03/ PY - 2011/11/22/received PY - 2012/03/19/accepted PY - 2012/03/09/revised PY - 2012/8/7/entrez PY - 2012/8/7/pubmed PY - 2012/12/19/medline SP - 1287 EP - 92 JF - Archives of pharmacal research JO - Arch Pharm Res VL - 35 IS - 7 N2 - Inflammation is a highly complex process that protects against foreign challenge or tissue injury. The ester derivative dibutyryl chitin (DBC) reportedly accelerates wound healing and exerts an anti-inflammatory effect. However, little is known regarding the inhibitory effect of DBC in anti-inflammation. In this study, we investigated the effect of DBC on the inducible nitric oxide synthetase (iNOS) and cyclooxygenage-2 (COX-2) pathways and pro-inflammatory cytokine production in lipopolysaccharide (LPS)-treated RAW 264.7 macrophages. Our results demonstrate that DBC (MW 3,772) significantly inhibits overproduction of NO and PGE(2) as well as pro-inflammatory cytokines, such as tumor necrosis factor-α and interleukin-1β, in LPS-stimulated RAW 264.7 macrophages. Inhibition of NO and PGE(2) overproduction in LPSstimulated RAW 264.7 macrophages by DBC was mediated through the down-regulation of iNOS and COX-2 expression. These results demonstrate that DBC efficiently inhibits inflammation and has potential as an effective anti-inflammatory and wound healing agent. SN - 0253-6269 UR - https://www.unboundmedicine.com/medline/citation/22864752/Inhibitory_effect_of_dibutyryl_chitin_ester_on_nitric_oxide_and_prostaglandin_E₂_production_in_LPS_stimulated_RAW_264_7_cells_ L2 - https://dx.doi.org/10.1007/s12272-012-0720-8 DB - PRIME DP - Unbound Medicine ER -