Question

we all know that nerve cell do not go through cell division then how is it possible in brain cancer? as camcer is caused due to uuncontrolled cell division

Answer 1

you are right to the extent that by far the evidences have indicated that adult human neurons have insignificant capacity to divide. But at the same time, we must understand that apart from neurons, there are several other types of supporting cells, including various glial cells, blood vessel cells, pitutary gland cells, meningeal cells and those of the nerve sheaths and skull, which retain capability to replicate in adult mammalian brain, thus almost all tumors in adult people arise from these lineages. Only a fraction of brain tumors are of neuronal origin, usually arising in embryonic or foetal stages of the children or occasionally in neonatal life, when the neurons continue to divide at low rate.However, about 10 to 15 % of the brain neoplasms are metastases from primary tumors in other body sites than brain