MYC is a transcription factor that plays a critical role in cancer by promoting cell growth and proliferation through metabolic activities. It coordinates nutrient acquisition to produce ATP and essential cellular components, which increase cell mass and trigger DNA replication and cell division. In cancer, genetic and epigenetic changes silence checkpoints, allowing MYC to drive uncontrolled growth. MYC-driven metabolic pathways become essential for cancer cells, making them vulnerable to therapeutic targeting. MYC functions by binding to DNA through its dimerization with MAX, regulating gene expression. It is tightly regulated in normal cells, but in cancer, MYC amplifications, translocations, or viral insertions remove its dependence on growth factors. MYC's activity is influenced by chromatin accessibility and other transcription factors, allowing it to both amplify and repress gene expression. MYC's role in metabolism is central to cell growth, as it promotes ribosome biogenesis, cell growth, and proliferation. MYC also regulates protein translation by activating genes involved in ribosome assembly and nutrient import. It stimulates the production of tRNAs through effects on Pol III transcription. In normal cells, MYC's activity is controlled by checkpoints like p53 and ARF, which prevent uncontrolled growth. However, in cancer, these checkpoints are often lost, allowing MYC to drive tumorigenesis. MYC's metabolic role includes promoting glycolysis and glutaminolysis, which provide energy and building blocks for cell growth. It enhances the production of ATP, reducing equivalents for biosynthesis, and building blocks for growing cells. MYC also regulates nucleotide synthesis, which is essential for cell proliferation. It coordinates the synthesis of purines and pyrimidines, and is involved in lipid synthesis, which is crucial for membrane formation. MYC's role in organelle biogenesis, particularly ribosomes and mitochondria, is essential for ATP production and cell growth. It stimulates mitochondrial biogenesis, which is necessary for energy production. MYC also influences other organelles, such as lysosomes and autophagy, but does not increase the genesis of all organelles. MYC directly triggers cell cycle progression by activating genes like cyclin D and CDK4, and by activating E2F transcription factors. It also promotes DNA replication by activating key replication genes, such as the MCM family. MYC's regulation of metabolism and cell cycle is crucial for cancer progression. Targeting MYC's metabolic pathways has shown promise in cancer therapy. Anti-folate drugs like aminopterin and methotrexate have been effective in treating cancers, as they inhibit folate metabolism, which is essential for MYC-driven cell growth. Recent studies suggest that targeting specific metabolic enzymes, such as those involved in glycolysis and glutaminolysis, could be effective in treating MYC-driven cancers. Synthetic lethality studies have identified genes that, when lost, are lethal to MYC-overexpressing cells, offering potentialMYC is a transcription factor that plays a critical role in cancer by promoting cell growth and proliferation through metabolic activities. It coordinates nutrient acquisition to produce ATP and essential cellular components, which increase cell mass and trigger DNA replication and cell division. In cancer, genetic and epigenetic changes silence checkpoints, allowing MYC to drive uncontrolled growth. MYC-driven metabolic pathways become essential for cancer cells, making them vulnerable to therapeutic targeting. MYC functions by binding to DNA through its dimerization with MAX, regulating gene expression. It is tightly regulated in normal cells, but in cancer, MYC amplifications, translocations, or viral insertions remove its dependence on growth factors. MYC's activity is influenced by chromatin accessibility and other transcription factors, allowing it to both amplify and repress gene expression. MYC's role in metabolism is central to cell growth, as it promotes ribosome biogenesis, cell growth, and proliferation. MYC also regulates protein translation by activating genes involved in ribosome assembly and nutrient import. It stimulates the production of tRNAs through effects on Pol III transcription. In normal cells, MYC's activity is controlled by checkpoints like p53 and ARF, which prevent uncontrolled growth. However, in cancer, these checkpoints are often lost, allowing MYC to drive tumorigenesis. MYC's metabolic role includes promoting glycolysis and glutaminolysis, which provide energy and building blocks for cell growth. It enhances the production of ATP, reducing equivalents for biosynthesis, and building blocks for growing cells. MYC also regulates nucleotide synthesis, which is essential for cell proliferation. It coordinates the synthesis of purines and pyrimidines, and is involved in lipid synthesis, which is crucial for membrane formation. MYC's role in organelle biogenesis, particularly ribosomes and mitochondria, is essential for ATP production and cell growth. It stimulates mitochondrial biogenesis, which is necessary for energy production. MYC also influences other organelles, such as lysosomes and autophagy, but does not increase the genesis of all organelles. MYC directly triggers cell cycle progression by activating genes like cyclin D and CDK4, and by activating E2F transcription factors. It also promotes DNA replication by activating key replication genes, such as the MCM family. MYC's regulation of metabolism and cell cycle is crucial for cancer progression. Targeting MYC's metabolic pathways has shown promise in cancer therapy. Anti-folate drugs like aminopterin and methotrexate have been effective in treating cancers, as they inhibit folate metabolism, which is essential for MYC-driven cell growth. Recent studies suggest that targeting specific metabolic enzymes, such as those involved in glycolysis and glutaminolysis, could be effective in treating MYC-driven cancers. Synthetic lethality studies have identified genes that, when lost, are lethal to MYC-overexpressing cells, offering potential