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[求助] 做细胞的同仁来帮帮!!!

看不懂这段话的逻辑,To further characterize quercetin-induced apoptosis and to
investigate which apoptotic pathway quercetin activated, we
examined caspase-3 and caspase-9, the apical proteases in the
extrinsic pathways. As shown in Fig. 8A, procaspase-3 and
procaspase-9 decreased significantly after quercetin exposure for
48 h in A2780S cells; moreover, the levels of cleaved caspase-3
and caspase-9 increased in a concentration-dependent manner.
Collectively, we proposed that quercetin triggers apoptosis
through the intrinsic pathway but not the extrinsic pathway.
活化型caspase-3、9(诱导细胞凋亡的蛋白酶)水平升高了,他们又是非固有通路的顶端酶,但为什么说凋亡是通过固有通路捏???
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