Analysis of Changes in MicroRNA Expression Profiles in Response to the Troxerutin-mediated Antioxidant Effect in Human Dermal Papilla Cells

Overview

Journal Mol Med Rep

Specialty Molecular Biology

Date 2015 May 9

PMID 25955790

Citations 7

Authors

Kyung Mi Lim

Sungkwan An

Ok-Kyu Lee

Myung Joo Lee

Jeong Pyo Lee

Kwang Sik Lee

Ghang Tai Lee

Kun Kook Lee

Seunghee Bae

Affiliations

Soon will be listed here.

Abstract

Dermal papilla (DP) cells function as important regulators of the hair growth cycle. The loss of these cells is a primary cause of diseases characterized by hair loss, including alopecia, and evidence has revealed significantly increased levels of reactive oxygen species (ROS) in hair tissue and DP cells in the balding population. In the present study, troxerutin, a flavonoid derivative of rutin, was demonstrated to have a protective effect against H2O2-mediated cellular damage in human DP (HDP) cells. Biochemical assays revealed that pretreatment with troxerutin exerted a protective effect against H2O2-induced loss of cell viability and H2O2-induced cell death. Further experiments confirmed that troxerutin inhibited the H2O2-induced production of ROS and upregulation of senescence-associated β-galactosidase activity. Using microRNA (miRNA) microarrays, the present study identified 24 miRNAs, which were differentially expressed in the troxerutin-pretreated, H2O2-treated HDP cells. Subsequent prediction using bioinformatics analysis revealed that the altered miRNAs were functionally involved in several cell signaling pathways, including the mitogen-activated protein kinase and WNT pathways. Overall, these results indicated that ROS-mediated cellular damage was inhibited by troxerutin and suggested that the use of troxerutin may be an effective approach in the treatment of alopecia.

Citing Articles

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