Journal: International Journal of Molecular Sciences
Article Title: Mesenchymal Stem Cells Extract (MSCsE)-Based Therapy Alleviates Xerostomia and Keratoconjunctivitis Sicca in Sjogren’s Syndrome-Like Disease
doi: 10.3390/ijms20194750
Figure Lengend Snippet: Proliferation rates, serum EGF levels, and gene expression levels of key genes at 16 weeks post-treatment. ( A ) Immunofluorescence staining of submandibular (SMG) (upper panel) and lacrimal (LG) (lower panel) glands for proliferation protein Ki-67 (red), nuclei were stained with DAPI (blue), ( B ) Proliferation rate (Ki-67-positive cells %) for submandibular and lacrimal glands was calculated using random 200× magnified images (acquired by Volocity software) using Image J software. Two examiners independently analyzed images in a blind manner. MSCs/MSCsE treatments promoted tissue proliferation in the glands significantly higher than the control group and their rates were comparable to the ICR group. ( C ) Serum levels of EGF measured by ELISA. Both treatments elevated EGF levels in comparison to the control group, but only MSCsE treatment induced a significantly higher level. ( D ) Relative expression of key genes for tissue function, repair, regeneration, and apoptosis were analyzed by quantitative RT-PCR in lacrimal (LG) and submandibular (SG) glands. Gene expression levels in the lacrimal gland were significantly higher in MSCs-/MSCsE-treated groups than that of the control for AQP5, EGF, LYZ1, MMP2, and BMP7. Gene expression levels in the submandibular gland were significantly higher in MSCs-/MSCsE-treated groups than that of the control for AQP5, EGF, FGF2, and BMP7; and significantly lower for MMP2 and CASP3. Y-axis shows the relative expression of the gene compared to GAPDH, three experimental replicates were conducted for each sample. Scale bar = 74 μm, * p < 0.05, ** p < 0.01; *** p < 0.001, n = 3–6. All data were presented as mean ± S.D. Control: saline-treated; MSCs: Mesenchymal stem cells; MSCsE: Mesenchymal stem cells extract.
Article Snippet: The BM pellet was reconstituted and mixed thoroughly with the MSCs media (MesenCultTM MSC Basal Medium+ MesenCultTM Mesenchymal Stem Cell Stimulatory Supplements (STEMCELL)).
Techniques: Gene Expression, Immunofluorescence, Staining, Software, Control, Enzyme-linked Immunosorbent Assay, Comparison, Expressing, Quantitative RT-PCR, Saline