In the early stages of carcinogenesis, TGF-β acts as a potent tumor suppressor by inducing cell cycle arrest and apoptosis. A critical step in cancer progression is the acquisition of resistance to this growth-inhibitory effect. This often occurs through mutations that inactivate components of the TGF-β signaling pathway, such as TGFBRII, SMAD4, or SMAD2, allowing the cells to proliferate unchecked.

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Zambia

• Chita katowando – 271 pts

• Visual Pathway Lesions
• Positive and Negative Symptoms
• Hallucinations and Delusions
• Antipsychotic Medications
• Emergency: Environmental Emergencies