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Updated: Apr 3, 2026
A Novel Clinical Grade Isolation Method for Human Kidney Perivascular Stromal Cells
Published on: August 7, 2017
Current approaches in identification and isolation of human renal cell carcinoma cancer stem cells
Mohammed I Khan1, Anna M Czarnecka2, Igor Helbrecht2
1Molecular Oncology Laboratory, Clinic of Oncology, Military Institute of Medicine, ul. Szaserów 128, 04-141, Warsaw, Poland. imrankhanbioinfo@gmail.com.
Abstract:
In recent years, cancer stem cells (CSCs)/tumor initiating cells (TICs) have been identified inside different tumors. However, currently used anti-cancer therapies are mostly directed against somatic tumor cells without targeting CSCs/TICs. CSCs/TICs also gain resistance to chemotherapies/radiotherapies. For the development of efficient treatment strategies, choosing the best method for isolation and characterization of CSCs/TICs is still debated among the scientific community. In this review, we summarize recent data concerning isolation techniques for CSCs using magnetic cell sorting and flow cytometry. The review focuses on the strategies for sample preparation during flow cytometric analysis, elaborating biomarkers such as CXCR4, CD105, and CD133. In addition, functional properties characteristic of CSCs/TICs using side population selection through Hoechst 33342 dye, aldehyde dehydrogenase 1, dye-cycle violet, and rhodamine 123 are also discussed. We also include a special focus on enriching CSCs/TICs using three-dimensional cell culture models such as agarose-agarose microbeads and sphere formation.
Insights
Identifying and isolating cancer stem cells (CSCs) is crucial for effective cancer treatment. This review details methods like flow cytometry and 3D cultures for CSC isolation and characterization.
Area of Science:
- Oncology
- Cell Biology
- Biotechnology
Background:
- Cancer stem cells (CSCs) / tumor-initiating cells (TICs) are implicated in tumor growth and therapy resistance.
- Current anti-cancer therapies often fail to target CSCs/TICs effectively.
- Optimal isolation and characterization methods for CSCs/TICs remain a subject of scientific debate.
Purpose of the Study:
- To review and summarize recent advancements in CSC/TIC isolation and characterization techniques.
- To provide insights into effective strategies for targeting CSCs/TICs in cancer treatment development.
Main Methods:
- Magnetic cell sorting (MACS) and flow cytometry for CSC/TIC isolation.
- Analysis of biomarkers including CXCR4, CD105, and CD133.
- Functional assays utilizing Hoechst 33342 dye, aldehyde dehydrogenase 1, dye-cycle violet, and rhodamine 123.
- Enrichment of CSCs/TICs using 3D cell culture models like sphere formation and agarose microbeads.
Main Results:
- Detailed discussion on sample preparation strategies for flow cytometry.
- Elaboration on the utility of specific biomarkers for CSC/TIC identification.
- Exploration of functional assays to characterize CSC/TIC properties.
- Highlighting the effectiveness of 3D culture models for CSC/TIC enrichment.
Conclusions:
- Effective isolation and characterization of CSCs/TICs are critical for developing superior cancer therapies.
- Flow cytometry, biomarker analysis, functional assays, and 3D culture models offer promising avenues for CSC/TIC research.
- Further research into these methods will advance the development of targeted anti-cancer strategies.
