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CXCL12 gene polymorphism and hematologic recovery after transplantation of peripheral blood progenitor cells

A Gieryng1, K Bogunia-Kubik, A Lange

  • 1L. Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland.

Transplantation Proceedings
|October 26, 2010
PubMed

Insights

The stromal cell-derived factor-1 (SDF-1/CXCL12) gene polymorphism influences hematopoietic stem cell recovery. Patients with the CXCL12-3'A allele showed faster granulocyte and platelet recovery after autologous peripheral blood progenitor cell transplantation.

Area of Science:

  • Hematology
  • Genetics
  • Transplantation Immunology

Background:

  • Stromal cell-derived factor-1 (SDF-1/CXCL12) gene polymorphism (3'-UTR,801A>G) is linked to CD34+ cell release.
  • Understanding factors affecting hematopoietic stem cell (HSC) engraftment is crucial for transplantation outcomes.

Purpose of the Study:

  • To investigate the association between CXCL12 gene polymorphism and HSC engraftment.
  • To evaluate the impact of CXCL12 polymorphism on granulocyte and platelet recovery post-autologous peripheral blood progenitor cell transplantation (PBPCT).

Main Methods:

  • CXCL12 genotyping using PCR-RFLP with MspI enzyme in 57 autologous PBPCT recipients.
  • Analysis of granulocyte and platelet recovery timelines.
  • Multiple regression analysis to identify independent predictors of recovery.

Main Results:

  • Faster recovery of granulocytes (median 15 vs 17 days) and platelets (median 17 vs 21 days) was observed in patients with the CXCL12-3'A allele.
  • Significant correlation between the pace of granulocyte and platelet recovery (P<.001).
  • CXCL12-3'A allele independently associated with faster granulocyte and platelet recovery (P=.020).

Conclusions:

  • The CXCL12 gene polymorphism, specifically the 3'A allele, is a significant factor influencing hematopoietic stem cell engraftment.
  • This polymorphism is associated with accelerated recovery of granulocytes and platelets following autologous PBPCT.
  • Findings suggest potential for genotype-guided supportive care strategies in transplantation.

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