Most biological processes require energy and are tightly regulated. Energy is extracted from food supplies and eventually transformed into ATP, the universal energy carrier of the cell. These pathways consist of many reactions which involve NAD or NADP, small molecules which serve as intermediate energy transmitters.
Vitamin B3 is essential for the synthesis of these nucleotides. Interestingly, the key molecules in energy transduction also have important roles in the regulation of all vital
MESI-STRAT: Systems Medicine of Metabolic-Signaling Networks -A New Concept for Breast Cancer Patient Stratification.
Breast cancer is a complex disease with high prevalence in the European Union and world-wide. 75%-80 of the patients have estrogen receptor-positive (ER)-positive tumors and are treated with endocrine therapies. Endocrine therapies, which block ER-driven tumor growth, show high efficacy. Yet, a significant proportion of the patients will eventually relapse with metastatic breast