Anti-Inflammatory Effect of Quercetagetin, an Active Component of Immature Citrus unshiu, in HaCaT Human Keratinocytes.
- Author:
Gyeoung Jin KANG
1
;
Sang Chul HAN
;
Jong Woo OCK
;
Hee Kyoung KANG
;
Eun Sook YOO
Author Information
1. Department of Pharmacology, School of Medicine, Jeju National University, Jeju 690-756, Republic of Korea. eunsyoo@jejunu.ac.kr
- Publication Type:Original Article
- Keywords:
Quercetagetin;
Flavonoids;
Immature Citrus unshiu;
TARC (CCL17);
MDC (CCL22)
- MeSH:
Cell Movement;
Chemokine CCL17;
Chemokine CCL22;
Chemokines;
Chromatography, High Pressure Liquid;
Citrus*;
Dermatitis, Atopic;
Flavonoids;
Humans*;
Keratinocytes*;
Quercetin;
RNA, Messenger;
Skin Diseases
- From:Biomolecules & Therapeutics
2013;21(2):138-145
- CountryRepublic of Korea
- Language:English
-
Abstract:
Citrus fruit contain various flavonoids that have multiple biological activities. However, the content of these flavonoids are changed during maturation and immature Citrus is known to contain larger amounts than mature. Chemokines are significant mediators for cell migration, while thymus and activation-regulated chemokine (TARC/CCL17) and macrophage-derived chemokine (MDC/CCL22) are well known as the typical inflammatory chemokines in atopic dermatitis (AD), a pruritic and chronic inflammatory skin disease. We reported recently that the EtOH extract of immature Citrus unshiu inhibits TARC and MDC production. Therefore, we investigated the activity of flavonoids contained in immature Citrus on TARC and MDC levels. As a result, among the various flavonoids, quercetagetin has stronger inhibitory effects on the protein and mRNA expression of TARC and MDC than other flavonoids. Quercetagetin particularly has better activity on TARC and MDC level than quercetin. In HPLC analysis, the standard peak of quercetagetin matches the peaks of extract of immature C. unshiu. This suggests that quercetagetin is an anti-inflammatory component in immature C. unshiu.
