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Fig. 1 | Stem Cell Research & Therapy

Fig. 1

From: Exendin-4 enhances the differentiation of Wharton’s jelly mesenchymal stem cells into insulin-producing cells through activation of various β-cell markers

Fig. 1

a Phase-contrast image of isolated WJ-MSCs (passage 3) showing homogeneous fibroblast-like cells. Magnification: 10×; scale bar = 100 μm. b Immunophenotyping for isolated WJ-MSCs; cells were labeled with FITC-conjugated or PE-conjugated antibodies and examined by flow cytometry. The immunophenotyping profile of WJ-MSCs showed negative for CD34 and CD14 but positive for CD73, CD90 and CD105. ch Differentiation of isolated cells down several mesenchymal lineages: c uninduced WJ-MSCs as control for adipogenic differentiation; d induced WJ-MSCs showing red staining of oil droplets using Oil Red, characteristic for successful adipogenic differentiation; e uninduced control WJ-MSCs for osteogenic differentiation experiment; f induced WJ-MSCs showing positive Alizarin Red-S staining for calcium-rich extracellular matrix, indicating successful osteogenic differentiation characteristic for MSCs; g uninduced control WJ-MSCs for the chondrogenic differentiation experiment; h induced WJ-MSCs showing blue staining by Alcian 8GX blue for sulfated proteoglycan, indicating the successful chondrogenic differentiation of isolated WJ-MSCs. Scale bar = 100 μm

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