Lysosomes, caspase-mediated apoptosis, and cytoplasmic activation of P21, but not cell senescence, participate in a redundant fashion in embryonic morphogenetic cell death

溶酶体、胱天蛋白酶介导的细胞凋亡和 P21 的细胞质激活（而非细胞衰老）以冗余方式参与胚胎形态发生细胞死亡