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SPC differentiates human adipose-derived mesenchymal stem cells to vascular like cells through Rho A/Rho kinase

첫 페이지 보기
  • 발행기관
    한국생물공학회 바로가기
  • 간행물
    한국생물공학회 학술대회 바로가기
  • 통권
    2012 춘계학술대회 및 국제심포지움 (2012.04)바로가기
  • 페이지
    pp.228-228
  • 저자
    Mi-Hyeong PARK, Da Hye HONG, Won Sun PARK
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A174782

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원문정보

초록

영어
Introduction: Sphingosylphosphorylcholine (SPC) induces differentiation of human adipose tissue-derived mesenchymal stem cells (hADSCs) to smooth muscle cells (SMCs). Materials and Methods: In the present study, we characterized contractile and ion channel properties of SMCs differentiated from hADSCs (hADSC-SMCs) as a result of SPC treatment, and we investigated the molecular mechanisms involved in the SPC-induced differentiation. Results and Discussion: Using in vitro collagen gel lattice contraction and whole cell patch clamp, we showed that the hADSC-SMCs expressed functional L-type voltage-gated Ca2+ channels and contractile activities in response to KCl, carbachol, and the L-type Ca2+ channel opener Bay K8644, whereas the L-type Ca2+ channel blocker nifedipine abrogated the contractility of hADSC-SMCs. Furthermore, hADSC-SMCs expressed functional big conductance Ca2+-activated K+ (BKCa) channels, and the BKCa channel blocker iberiotoxin potentiated the Bay K8644-stimulated contractility of the hADSC-SMCs, indicating that these cells exhibited SMC-like contractile characteristics. SPC activated RhoA in hADSCs and pretreatment with Rho kinase inhibitor Y27632 or by overexpression of dominant-negative mutants of RhoA or Rho kinase completely abtogated the SPC-induced differentiation of hADSCs into SMCs. SPC also increased the expression levels of myocardin-related transcription factor (MRTF)-A, a tanscription factor involved in smooth muscle differentiation, in hADSCs. Small interference RNA-mediated depletion of endogenous MRTF-A abolished the SPC-induced differentiation of hADSCs into SMCs. Furthermore, SPC promoted nuclear translocation of MRTF-A, and pharmacological inhibition of Tho kinase blocked this effect. These results suggest that SPC induced differentiation of hADSCs into contractile SMCs through a mechanism involving RhoA/Rho kinase-dependent nuclear translocation of MRTF-A.

키워드

Sphingosylphosphorylcholine human adipose tissue-derived mesenchymal stem cells smooth muscle cells

저자

  • Mi-Hyeong PARK [ Department of Physiology, Kangwon National University School of Medicine. ]
  • Da Hye HONG [ Department of Physiology, Kangwon National University School of Medicine. ]
  • Won Sun PARK [ Department of Physiology, Kangwon National University School of Medicine. ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    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 476 DDC 576

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