Protocol for sorting cancer stem cells using a combination of anti-CD133 antibody and lectin cyanovirin-N

  • 0NHC Key Laboratory of Glycoconjuates Research, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai 200032, P.R. China.

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Summary

This summary is machine-generated.

This study introduces a new method to isolate cancer stem cells (CSCs) by combining CD133 with specific glycan chains, improving CSC identification and sorting for cancer research.

Area Of Science

  • Biochemistry
  • Cancer Biology
  • Glycobiology

Background

  • CD133 is a common marker for cancer stem cells (CSCs).
  • The N-glycan structure of CD133 presents ambiguity, limiting precise CSC isolation.
  • Improved markers are needed for accurate CSC identification and therapeutic targeting.

Purpose Of The Study

  • To develop a refined protocol for isolating cancer stem cells (CSCs).
  • To enhance the specificity of CSC markers by combining CD133 with glycan chain information.
  • To provide a method for more accurate sorting of CSCs from tumor samples.

Main Methods

  • Purification and biotinylation of cyanovirin-N (CVN) proteins.
  • Development of a protocol combining CD133 and α-1,2-high-mannose type glycan chains.
  • Sorting of tumor cells expressing both CD133 and α-1,2-linked mannose (CD133+α-1,2-Man+).

Main Results

  • A novel method for identifying and sorting CSCs was established.
  • The combination of CD133 and α-1,2-high-mannose glycans provides a more specific CSC marker.
  • The protocol enables precise isolation of CD133+α-1,2-Man+ cells.

Conclusions

  • The developed protocol offers enhanced specificity for cancer stem cell isolation.
  • Combining CD133 with specific glycan markers improves CSC identification accuracy.
  • This method has potential applications in cancer research and therapy development.