Human mesenchymal stem cells express a myofibroblastic phenotype in vitro

التفاصيل البيبلوغرافية
العنوان: Human mesenchymal stem cells express a myofibroblastic phenotype in vitro
المؤلفون: Ngo, Melanie Allison
المساهمون: Freed, Darren (Physiology) Arora, Rakesh (Surgery), Dixon, Ian (Physiology) Wigle, Jeffrey (Biochemistry & Medical Genetics) Fernyhough, Paul (Pharmacology)
سنة النشر: 2012
المجموعة: Theses Canada / Thèses Canada (Library and Archives Canada)
مصطلحات موضوعية: mesenchymal stem cells, myofibroblasts
الوصف: There is emerging evidence to suggest that cardiac myofibroblasts (CMyfbs) participating in cardiac fibrosis represent a heterogeneous population in origin. We hypothesized that bone marrow derived mesenchymal stem cells (MSCs) readily adopt a myofibroblastic phenotype in culture. We assessed and compared human primary MSCs and human CMyfbs with respect to their phenotypic and functional characteristics by examining their gene expression profile, ability to contract collagen gels, and ability to synthesize collagen. We also examined the role of non-muscle myosin II (NMMII) in modulating the myofibroblast function using siRNA and blebbistatin to inhibit NMMII activity. The data revealed that MSCs adopt a myofibroblastic phenotype in culture and demonstrate the capability to contract collagen gels and synthesize collagen similar to human CMyfbs. Inhibition of NMMII activity with blebbistatin completely inhibits gel contractility without affecting cell viability. Thus, MSCs exhibit similar physiological and functional characteristics as CMyfbs, and may contribute to cardiac fibrosis.
نوع الوثيقة: other/unknown material
اللغة: unknown
العلاقة: http://hdl.handle.net/1993/5059Test
الإتاحة: http://hdl.handle.net/1993/5059Test
رقم الانضمام: edsbas.7D79613C
قاعدة البيانات: BASE