cancer

definition of cancer -> neoplasia of abnormal tissue

persist once stimulus is removed

• is more aggressive, and goes beyond the limit of the organ -> can spread across organ?

theye dont respond to any stimulus coming from outside

normal cells ahve alot of gene regulation, some cells can respond to certain activitse. become more active \ less active etc

receiving negative control -> stops it pos -> activates it

cancer cell develop a mechanism to avoid \ not respond to outside sginals

• very specific of cancer

mechanism of developing that specific self independance/sustainance

• they dont respond to any negative control

group of diseases

• geneticalaly related rarely inherited (very low percentage)
• most are SPORADIC

some susceptiblity of cancer

a family may have history of cancer that means that everyone has a chance of countering it, a higher chance, but it;s not guaranteed

one single cell can do all of this

• it's very agressive, and develops fast

healthy cells how do they develop cancer?