Cited by 15Skin Protection and AgingMicroRNA in disease regulationSirtuins and Resveratrol in Medicine

MicroRNA-378b regulates α-1-type 1 collagen expression via sirtuin 6 interference

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Joo, Dahye, An, Sungkwan, Choi, Byung Gon, Kim, Karam, Choi, Young Min, Ahn, Kyu Joong, An, In-Sook, Cha, Hwa Jun·2017·Molecular Medicine Reports

Abstract

Ultraviolet (UV) light mediates skin aging and induces destruction of the dermis by modulating the expression levels of extracellular matrix‑associated genes, including collagen and matrix metalloproteinases. Sirtuin 6 (SIRT6), a member of the sirtuin family of proteins, regulates collagen metabolism and is an established anti‑aging protein. However, the exact underlying mechanism by which SIRT6 expression is regulated in dermal fibroblasts during the aging process is unclear. The present study demonstrated that expression of microRNA‑378b (miR‑378b) is induced in UVB‑exposed human dermal fibroblasts (HDFs), and this was inversely associated with the mRNA expression levels of α‑1‑type 1 collagen (COL1A1). In addition, knockdown of miR‑378b enhanced the mRNA expression levels of COL1A1 in HDFs. A target analysis for miR‑378b was performed, and the results revealed that SIRT6, a regulator of COL1A1, contains a target sequence for miR‑378b in its 3'untranslated region. Notably, the present study demonstrated that an miR‑378b mimic and inhibitor may directly regulate SIRT6 expression in HDFs. In conclusion, the present study suggested that miR‑378b represses the mRNA expression levels of COL1A1 via interference with SIRT6 in HDFs, and may contribute to the underlying molecular mechanism by which UVB inhibits collagen I in dermal fibroblasts.

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Authors
Joo, D., An, S., Choi, B. G., Kim, K., Choi, Y. M., Ahn, K. J., An, I.-S., & Cha, H. J.
Affiliations
  • Konkuk University (KR)
  • Osan University (KR)
Venue
Molecular Medicine Reports
Published
2017-09-28
Volume
16
Issue
6
Pages
8520-8524
ISSN
  • 1791-2997 (ISSN-L)
  • 1791-3004
OpenAlex
W2757138425
Cited by
15
References
30
Citations by year
2026: 2 · 2024: 1 · 2023: 2 · 2022: 1 · 2021: 4 · 2020: 2 · 2019: 2 · 2018: 1
FWCI
1.56
Type
journal article
Language
en
Open access
Locations
  • Molecular Medicine Reports (publishedVersion)
  • PubMed (publishedVersion)
Funders
Konkuk University
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
Keywords
SIRT6, COL1A1, type I collagen, dermal fibroblasts, extracellular matrix, 3' untranslated region, microRNA target regulation, collagen expression
MeSH terms
Collagen Type I, alpha 1 Chain, Fibroblasts, Gene Expression Regulation, Humans, Protein Binding, RNA, Messenger, Ultraviolet Rays, Down-Regulation, Dermis, 3' Untranslated Regions, Collagen Type I, RNA Interference, MicroRNAs, Sirtuins

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