Factors Affecting Fixation
Q: Over-fixation in formalin can make tissues brittle and difficult to section.
Did You Know?
Tuberous Sclerosis Complex (TSC) is caused by mutations in either the TSC1 (encoding hamartin) or TSC2 (encoding tuberin) genes. The TSC1/TSC2 protein complex acts as a critical inhibitor of mTORC1 by functioning as a GTPase-Activating Protein (GAP) for Rheb. Loss-of-function mutations in either TSC1 or TSC2 inactivate this complex. This leads to accumulation of Rheb-GTP, which directly and potently activates mTORC1, resulting in uncontrolled cell growth and proliferation, manifesting as the benign tumors (hamartomas) characteristic of the syndrome.
Social Sharing!
Share your knowledge:
Zambia