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RESEARCH PRODUCT

TlR expression profile of human gingival margin-derived stem progenitor cells

Sabine Adam-klagesKarim Fawzy-el-sayedMohamed MekhemarDietrich KabelitzChristof E. Dörfer

subject

0301 basic medicineCD14GingivaCD34OdontologíaBiology03 medical and health sciencesHumansCD90Progenitor cellGeneral DentistryCells CulturedColony-forming unitOral Medicine and PathologyStem CellsResearchRegeneration (biology)Toll-Like Receptors:CIENCIAS MÉDICAS [UNESCO]Ciencias de la saludCell biology030104 developmental biologyOtorhinolaryngologyUNESCO::CIENCIAS MÉDICASImmunologyCD146SurgeryStem cell

description

Background Gingival margin-derived stem/progenitor cells (G-MSCs) show remarkable periodontal regenerative potential in vivo. During regeneration, G-MSCs may interact with their inflammatory environment via toll-like-receptors (TLRs). The present study aimed to depict the G-MSCs TLRs expression profile. Material and Methods Cells were isolated from free gingival margins, STRO-1-immunomagnetically sorted and seeded to obtain single colony forming units (CFUs). G-MSCs were characterized for CD14, CD34, CD45, CD73, CD90, CD105, CD146 and STRO-1 expression, and for multilineage differentiation potential. Following G-MSCs’ incubation in basic or inflammatory medium (IL-1β, IFN-γ, IFN-α, TNF-α) a TLR expression profile was generated. Results G-MSCs showed all stem/progenitor cells’ characteristics. In basic medium G-MSCs expressed TLRs 1, 2, 3, 4, 5, 6, 7, and 10. The inflammatory medium significantly up-regulated TLRs 1, 2, 4, 5, 7 and 10 and diminished TLR 6 (p≤0.05, Wilcoxon-Signed-Ranks-Test). Conclusions The current study describes for the first time the distinctive TLRs expression profile of G-MSCs under uninflamed and inflamed conditions. Key words:Stem cells, TLR, gingiva, polymerase chain reaction, FACS.

yearjournalcountryeditionlanguage
2015-01-07Medicina Oral Patología Oral y Cirugia Bucal
https://doi.org/10.4317/medoral.20593