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Cancer Stem Cells and Tumor Maintenance02:40

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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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Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
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Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
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A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized 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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Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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Bioactive lipids in cancer stem cells.

Romana-Rea Begicevic1, Frank Arfuso2, Marco Falasca3

  • 1Metabolic Signalling Group, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia.

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Cancer stem cells (CSCs) drive tumor growth and treatment resistance. This review explores how lipid metabolism and bioactive lipids regulate CSC fate and signaling pathways, offering new therapeutic targets.

Keywords:
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Area of Science:

  • Oncology
  • Cancer Biology
  • Metabolic Pathways

Background:

  • Tumors exhibit cellular heterogeneity, complicating eradication efforts.
  • Cancer stem cells (CSCs) possess self-renewal properties, conferring resistance to therapies.
  • Lipid metabolism is increasingly recognized for its role in cancer progression.

Purpose of the Study:

  • To review recent findings on lipid metabolism in CSCs.
  • To elucidate the mechanisms by which bioactive lipids influence CSC fate.
  • To explore the involvement of lipid metabolism in CSC signaling pathways.

Main Methods:

  • Literature review of recent studies on lipid metabolism and CSCs.
  • Analysis of the roles of key enzymes (e.g., stearoyl-CoA desaturase-1, HMG-CoA reductase) in CSCs.
  • Focus on bioactive lipids and their regulatory functions.

Main Results:

  • Accumulating evidence points to critical roles for enzymes regulating lipid metabolism in CSCs.
  • Specific bioactive lipids are identified as key regulators of CSC fate.
  • Lipid metabolism is implicated in crucial CSC signaling pathways.

Conclusions:

  • Understanding lipid metabolism in CSCs is crucial for developing novel cancer therapies.
  • Targeting lipid metabolism pathways presents a promising strategy to overcome CSC-mediated treatment resistance.
  • Further research into bioactive lipids is needed to fully exploit their therapeutic potential.