求翻译：凋亡是一个程序化过程，一旦程序启动，就肯定会发生凋亡。TNF-a是已知可诱导细胞发生凋亡的物质，其诱导细胞凋亡过程与caspase级联反应有关。是什么意思？

Apoptosis is a programmed process, once the program starts, it will certainly undergo apoptosis. tnf-a is known to induce cell apoptosis substance induced during apoptosis and caspase cascade.

Apoptosis is a process, procedure, once the program starts, it will certainly be Apoptosis occurs. This is a known TNF - a place to induce cell apoptosis induced by the material, and stem cells to apoptosis caspase cascade reaction.

Perishes is weakly a sequenced process, once the procedure starts, definitely can occur perishes weakly.TNF-a is known may induce the material which the cell occurs perishes weakly, its induction cell perishes weakly the process and the caspase cascade responded concerns.

Apoptosis is a programmed process, once the program starts, you'll certainly apoptosis occurs. TNF-a are substances that are known to induce cell apoptosis, cell apoptosis induced by its associated with the Caspase cascade reaction.

apoptosis is a process, procedure, once the program starts, it will certainly be Apoptosis occurs. This is a known TNF - a place to induce cell apoptosis induced by the material, and stem cells to apoptosis caspase cascade reaction. ;