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Preparation of Single Epithelial Cells Suspension from Mouse Mammary Glands.

Single cell RNA sequencing is a very powerful means for cellular heterogeneous studies and so becoming wildly utilized nowadays. To guarantee the success of such analysis, it is very important, though sometimes difficult, to obtain single cells suspension with high quality, especially from the primary solid organs like mammary glands. Digestion of mouse or human mammary glands with enzymes was previously described. However, the yield, viability, especially the separation degree of the cells have rarely been noticed in these studies. Here we described a detailed protocol for the single epithelial cells suspension preparation from mouse mammary glands, which could be applied for single cell RNA sequencing on different platforms. This protocol could be well adapted for dissociation of other solid organs and tumors, and the single cell suspension could be also used for many other experiments.