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Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

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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
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
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Mesenchymal Stem Cells01:19

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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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Adaptive Mechanisms in Cancer Cells02:53

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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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Targeted Cancer Therapies02:57

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
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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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Updated: Jul 1, 2025

Studying Pancreatic Cancer Stem Cell Characteristics for Developing New Treatment Strategies
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Cancer Stem Cells: Current Challenges and Future Perspectives.

Muhammad Vaseem Shaikh1, Stefan Custers2, Alisha Anand2

  • 1Department of Surgery, McMaster University, Hamilton, ON, Canada.

Methods in Molecular Biology (Clifton, N.J.)
|March 13, 2024
PubMed
Summary
This summary is machine-generated.

Cancer stem cells (CSCs) drive tumor recurrence despite advanced treatments. New technologies and improved clinical trials are needed to overcome CSC challenges and develop effective therapies.

Keywords:
CRISPR-Cas9 systemCancer stem cellsCell surface makersFluorescent activated cell sortingIntratumoral heterogeneityMinimal residual disease.Single cell RNA sequencingStandard of careTumor initiating cells

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Area of Science:

  • Oncology
  • Cancer Biology
  • Stem Cell Research

Background:

  • Despite significant advancements in cancer care, a substantial number of patients experience tumor progression and recurrence.
  • Cancer stem cells (CSCs) are implicated in tumor persistence and relapse due to their self-renewal and differentiation capabilities.

Approach:

  • CSCs are currently identified and isolated using cell surface markers via fluorescence or magnetic-based cell sorting.
  • This review examines current limitations in CSC research, including marker identification, therapy resistance, and drug development.

Key Points:

  • Challenges in CSC research include identifying universal markers and overcoming therapy resistance.
  • Cutting-edge technologies like single-cell sequencing and CRISPR-Cas9 screens offer new avenues for targeted therapies.
  • Developing novel drugs and improving clinical trial designs are crucial for precision medicine.

Conclusions:

  • Addressing CSC-related challenges requires integrating advanced technologies for deeper biological insights.
  • Future research should focus on developing targeted therapies and refining clinical trial strategies for better patient outcomes.