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Advances in Hematology
Volume 2014 (2014), Article ID 273860, 6 pages
http://dx.doi.org/10.1155/2014/273860
Research Article

Influence of the Clinical Status on Stress Reticulocytes, CD 36 and CD 49d of SSFA2 Homozygous Sickle Cell Patients Followed in Abidjan

1Department of Hematology, Faculty of Pharmacy, University Felix Houphouet Boigny, Cocody, BP 2308 Abidjan 08, Cote D'Ivoire
2Unit of Hematology, Central Laboratory, Teaching Hospital of Yopougon, BP 632 Abidjan 21, Cote D'Ivoire
3Clinic Hematology Service, Teaching Hospital of Yopougon, BP 632 Abidjan 21, Cote D'Ivoire
4AIDS Biological Unit, Central Laboratory, Teaching Hospital of Yopougon, BP 632 Abidjan 21, Cote D'Ivoire

Received 25 August 2013; Revised 12 January 2014; Accepted 12 January 2014; Published 27 February 2014

Academic Editor: Aldo Roccaro

Copyright © 2014 Duni Sawadogo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background and Objectives. Interactions between sickle cells involving CD 49d, CD36, and the vascular endothelium may initiate vasoocclusion leading to acute painful episodes and multiple organ failure. Materials and Methods. We selected 60 SS patients who had never been treated by hydroxyurea. We performed a total blood count. We identified with immunophenotyping by flow cytometry total reticulocytes their distribution according to the degree of maturity (mature, intermediate, very immature) and CD 36+ and CD 49d+ antigens. Stress reticulocytes corresponded to the sum of intermediate and immature cells. Results. Subjects in crisis had more total reticulocytes and very immature reticulocytes than subjects in stationary phase (). During the crisis, total CD 36+ reticulocytes (214 870 ± 107 584/μL versus 148 878 ± 115 024/μL; ) and the very immature CD 36+ reticulocytes (28.9 ± 7.9% versus 23.0 ± 6.4%; ) increased. The clinical status had no impact on CD 49d+ reticulocytes. Conclusion. The rates of stress reticulocytes in general and those expressing CD 49d and CD 36 were very high. The clinical status had an influence on CD 36+ reticulocytes. The expression of adhesion molecules is only one of the parameters involved in sickle cell disease crisis.