The tissue came from another person's thymus gland and was partly grown in a laboratory.

该组织来自另一个人的胸腺，在某种程度上是在实验室中培养出来的。

The thymus gland is an organ that plays an important part in the immune system, which fights infection and disease in the human body.

胸腺是在人体免疫系统中发挥重要作用的器官，它抗击人体所受的感染和疾病。

This seems to reduce the muscle weakness symptoms even in people that don't appear to have any identifiable problems with the thymus gland itself.

这似乎可以减轻重症肌无力症状，即使那些患者的胸腺本身没有问题。