Predictive parameters for granulocyte colony-stimulating factor-induced peripheral blood stem cell mobilization

Area of Science:

• Hematology
• Transplantation Immunology

Background:

• Selecting optimal donors for allogeneic stem cell transplantation is crucial.
• Predicting CD34+ cell yields after G-CSF mobilization is essential for successful transplantation.

Purpose of the Study:

• To identify reliable parameters for predicting CD34+ cell yields.
• To investigate the kinetics of CD34+ cells and related factors during G-CSF mobilization.

Main Methods:

• Retrospective analysis of 15 healthy donors receiving G-CSF.
• Monitoring peripheral blood levels of WBCs, CD34+ cells, MMP-9, MMP-2, TIMP-1, and TIMP-2.
• Correlation analysis between cell counts and mobilization yields.

Main Results:

• CD34+ cell numbers in peripheral blood increased after G-CSF treatment.
• Day 4 peripheral blood CD34+ cell counts strongly correlated with PBSC product yields.
• MMP-9 levels also showed a positive correlation with circulating CD34+ cells.

Conclusions:

• Peripheral blood CD34+ cell counts are a useful predictor of PBSC mobilization.
• This finding can aid in selecting suitable donors for allogeneic transplantation.