Jongsung Lee, Eunsun Jung, Jienny Lee, Deokhoon Park
언어
영어(ENG)
URL
https://www.earticle.net/Article/A144458
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원문정보
초록
영어
Ultraviolet (UV) irradiation is a major environmental factor responsible for a high incidence of skin aging, which is referred to as photoaging, as well as skin cancer and melanoma. UVA (320-380 nm) irradiation represents 90% of the solar UV light that reaches the earth’ surface and is able to deeply penetrate into subcutis; therefore, its contribution to human life may be significant. In addition, Adipocyte dysfunction is strongly associated with the development of obesity, which is a major risk factor for many disorders including diabetes, hypertension and heart disease. This study shows that ultraviolet A (UVA) inhibits adipogenic differentiation of human adipose tissue-derived mesenchymal stem cells (hAMSCs) and its action mechanisms. The mRNA levels of peroxidase proliferator-activated receptor (PPAR) g and CCAAT/enhancer binding protein (C/EBP) a, but not C/EBP b and d, were reduced by UVA. Moreover, the mRNA levels of PPAR g target genes (lipoprotein lipase (LPL), CD36, Protein(aP2)andliverXreceptors(LXR)a) were down-regulated by UVA. Additionally, attempts to elucidate a possible mechanism underlying the UVA-mediated effects revealed that UVA induced migration inhibitory factor (MIF) gene expression, and that this was mediated through activation of activator protein (AP)-1 (especially, Jun N-terminal Kinase (JNK) and p42/44 (mapk))and (NF-kB). In addition, reduced adipogenesis by UVA was recovered upon the treatment with anti-MIF antibodies. AMP-activated protein kinase (AMPK) phosphorylation and upregulation of Kruppel-like factor 2 (KLF2) were induced by UVA. Taken together, these findings suggest that the inhibition of adipogenic differentiation of hAMSCs by UVA occurs primarily through the reduced expression of PPAR g, which is mediated by upregulation of KLF2 via the activation of MIF-AMPK signaling.
저자
Jongsung Lee [ Biospectrum Life Science Institute, Seongnam City, Gyunggi Do 462-807, Republic of Korea. ]
Eunsun Jung [ Biospectrum Life Science Institute, Seongnam City, Gyunggi Do 462-807, Republic of Korea. ]
Jienny Lee [ Biospectrum Life Science Institute, Seongnam City, Gyunggi Do 462-807, Republic of Korea. ]
Deokhoon Park [ Biospectrum Life Science Institute, Seongnam City, Gyunggi Do 462-807, Republic of Korea. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동
간행물
간행물명
한국생물공학회 학술대회
간기
반년간
수록기간
1985~2013
십진분류
KDC 476DDC 576
이 권호 내 다른 논문 / 한국생물공학회 학술대회 2011년도 한국생물공학회 춘계학술발표대회