**5. Conclusion**

In the present study, we observed a significant association for CXCL12 and MMP-9 polymorphisms exclusively in patients with MM, NHL and Hodgkin's disease suggesting that these polymorphisms are fair candidate gene variants to these 3 hematological diseases.

Furthermore we've confirmed that the SDF1-3'A allele was highly associated to a good mobilizing capacity especially in the group of healthy allogenic PBSC donors where the analysis not biased by background disease or chemotherapy.

Besides, we suggested a possible association of GG genotypes to poorer mobilization is already deduced.

### **6. Acknowledgment**

We thank all participant and all patients in this work
