کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3142061 1196766 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mesenchymal stem cell proliferation and mineralization but not osteogenic differentiation are strongly affected by extracellular pH
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی دندانپزشکی، جراحی دهان و پزشکی
پیش نمایش صفحه اول مقاله
Mesenchymal stem cell proliferation and mineralization but not osteogenic differentiation are strongly affected by extracellular pH
چکیده انگلیسی

Osteomyelitis is a serious complication in oral and maxillofacial surgery affecting bone healing. Bone remodeling is not only controlled by cellular components but also by ionic and molecular composition of the extracellular fluids in which calcium phosphate salts are precipitated in a pH dependent manner.ObjectiveTo determine the effect of pH on self-renewal, osteogenic differentiation and matrix mineralization of mesenchymal stem cells (MSCs).MethodsWe selected three different pH values; acidic (6.3, 6.7), physiological (7.0–8.0) and severe alkaline (8.5). MSCs were cultured at different pH ranges, cell viability measured by WST-1, apoptosis detected by JC-1, senescence was analyzed by β-galactosidase whereas mineralization was detected by Alizarin Red and osteogenic differentiation analyzed by Real-time PCR.ResultsSelf-renewal was affected by pH as well as matrix mineralization in which pH other than physiologic inhibited the deposition of extracellular matrix but did not affect MSCs differentiation as osteoblast markers were upregulated. The expression of osteocalcin and alkaline phosphatase activity was upregulated whereas osteopontin was downregulated under acidic pH.ConclusionpH affected MSCs self-renewal and mineralization without influencing osteogenic differentiation. Thus, future therapies, based on shifting acid-base balance toward the alkaline direction might be beneficial for prevention or treatment of osteomyelitis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Cranio-Maxillofacial Surgery - Volume 44, Issue 6, June 2016, Pages 715–724
نویسندگان
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