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-cyclopentyl-adenosine, added to the cultures at each medium change, stimulated proliferation only in differentiating DPSC and enhanced the osteogenic differentiation earlier in DPSCs than in S-ASCs. These effects were counteracted by cell pretreatment with a selective A1R antagonist. Thus, our findings suggest that S-ASCs could be advantageously used in regenerative orthopedics/dentistry, and locally released or exogenously added purines may play a role in bone repair/remodeling, even though this aspect should be more thoroughly evaluated.
D’Alimonte et al. (Sat,) studied this question.