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Related Concept Videos

Adaptive Mechanisms in Cancer Cells02:53

Adaptive Mechanisms in Cancer Cells

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Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
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Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
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The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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Cancer02:18

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Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
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Updated: Dec 13, 2025

Author Spotlight: Transmitochondrial Cybrid Generation Using Cancer Cell Lines
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How do cancer cells replenish their fuel supply?

Abdallah K Alameddine1, Frederick T Conlin2,3, Brian J Binnall1

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Cancer cells reprogram metabolism, enhancing glycolysis and autophagy to fuel oncogenesis. Understanding these metabolic shifts and targeting them with new drugs offers promising avenues for cancer therapy.

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Area of Science:

  • Oncology
  • Metabolic pathways
  • Cancer biology

Background:

  • Genetic changes, nutrient availability, and metabolic alterations are key drivers of oncogenesis.
  • Cancer cell metabolism is intricately linked with oncogenic growth pathways.
  • Targeting cancer metabolism is an emerging therapeutic strategy.

Purpose of the Study:

  • To review the metabolic properties of cancer cells.
  • To outline the interplay between oncogenic pathways and cancer metabolism.
  • To summarize metabolism-targeting cancer drugs in clinical development.

Main Methods:

  • Literature review of studies published within the last decade.
  • Focus on articles highlighting energy metabolism in cancer phenotypes.
  • Synthesis of information on metabolic reprogramming in cancer.

Main Results:

  • Cancer cells enhance glycolysis and autophagy to maintain potent metabolism.
  • Redox balance in cancer cells is achieved through metabolic adaptations.
  • Krebs cycle intermediates and beta-oxidation products are rerouted.

Conclusions:

  • Cancer pathogenesis involves complex, often elusive, homeostatic dysregulations.
  • Systems biology offers a framework for understanding cancer phenotypes.
  • Targeting cancer-related metabolic reprogramming may lead to novel therapeutics and improved patient care.