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Related Concept Videos

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.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
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Distinctive Features of Adult Stem Cells vs Cancer Stem Cells01:18

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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.
Adult stem 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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The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
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Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
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Related Experiment Video

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Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies
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Heterogeneity in cancer stem cells.

Anxin Wang1, Lisha Chen1, Chunlin Li1

  • 1Key Laboratory for Nano-Bio Interface Research, Suzhou Key Laboratory for Nanotheranostics, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.

Cancer Letters
|December 3, 2014
PubMed
Summary

Cancer stem cells (CSCs) exhibit unstable phenotypes due to heterogeneity, complicating targeted therapies. Understanding CSC variation is crucial for developing effective cancer treatment strategies.

Keywords:
Cancer stem cellHeterogeneitySurface markerTargeting therapy

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Area of Science:

  • Oncology
  • Cancer Biology
  • Stem Cell Research

Background:

  • Cancer stem cells (CSCs) are increasingly recognized as heterogeneous populations with unstable phenotypes.
  • Both intrinsic and extrinsic factors contribute to the phenotypic variation observed in CSCs.
  • This heterogeneity can lead to rapid relapse post-treatment, posing a challenge for CSC-targeted therapeutics.

Purpose of the Study:

  • To review the origins and manifestations of heterogeneity in cancer stem cells.
  • To discuss the therapeutic implications of CSC heterogeneity.
  • To highlight the need for novel CSC targeting strategies and markers.

Main Methods:

  • Literature review of studies on cancer stem cell heterogeneity.
  • Analysis of mechanisms driving CSC phenotypic variation.
  • Discussion of therapeutic strategies and their limitations.

Main Results:

  • CSCs are inherently heterogeneous, with diverse subpopulations.
  • Phenotypic instability is a key characteristic of CSCs.
  • Current CSC-targeting strategies face challenges due to this heterogeneity.

Conclusions:

  • Understanding CSC heterogeneity is critical for advancing cancer therapeutics.
  • Development of new CSC surface markers and targeting approaches is necessary.
  • Addressing CSC phenotypic variation may improve treatment efficacy and prevent relapse.