Tissue samples were minced with a scalpel before enzymatic digestion. For enzymatic disaggregation, we initially incubated with 1 mg/mL collagenase IV (Thermo Fisher Scientific, France) for 1 h, 2.5 h, and 24 h. To shorten incubation time, we introduced trypsin. Subsequently, digestion with 1 mg/mL collagenase IV was combined with 0.25% trypsin-EDTA (Sigma Aldrich, MO, USA): 1 h collagenase with 5 min trypsin, 2 h collagenase with 2 min trypsin.
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