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Criteria to Define Salivary Gland Stem Cells

Researchers from the laboratory of Catherine Ovitt (University of Rochester, New York, USA) realized that several diverse and non‐overlapping cell populations had been designated as adult stem cells in the mammalian salivary gland. In a new STEM CELLS review, Weng et al. focus on the criteria used to define these cell populations and highlight the limitations associated with each. The authors hope that this critical re‐evaluation of the characterization of these cell populations may serve to highlight those cells of interest to the development of salivary gland-based regenerative therapies.