The document discusses the Efruzher cancer theory and the role of the T3 receptor in carcinogenesis. It states that cytokines and growth factors can stimulate both cell proliferation and differentiation depending on dosage levels. The T3 receptor is located in the nucleus and mitochondria. Cancer cells continuously receive high levels of ligand signaling for proliferation but have broken down mitochondrial energy generation and aerobic glycolysis. They also have unsuccessful transcription expression from normal DNA sequences.