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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Abnormal expression of inflammatory genes in placentas of women with sickle cell anemia and sickle hemoglobin C disease

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Author(s):
Baptista, Leticia C. ; Costa, Maria Laura ; Ferreira, Regiane ; Albuquerque, Dulcineia M. ; Lanaro, Carolina ; Fertrin, Kleber Y. ; Surita, Fernanda G. ; Parpinelli, Mary A. ; Costa, Fernando F. ; de Melo, Monica Barbosa
Total Authors: 10
Document type: Journal article
Source: ANNALS OF HEMATOLOGY; v. 95, n. 11, p. 1859-1867, NOV 2016.
Web of Science Citations: 3
Abstract

Sickle cell disease (SCD) is a complex disease that is characterized by the polymerization of deoxyhemoglobin S, altered red blood cell membrane biology, endothelial activation, hemolysis, a procoagulant state, acute and chronic inflammation, and vaso-occlusion. Among the physiological changes that occur during pregnancy, oxygen is consumed by fetal growth, and pregnant women with SCD are more frequently exposed to low oxygen levels. This might lead to red blood cells sickling, and, consequently, to vaso-occlusion. The mechanisms by which SCD affects placental physiology are largely unknown, and chronic inflammation might be involved in this process. This study aimed to evaluate the gene expression profile of inflammatory response mediators in the placentas of pregnant women with sickle cell cell anemia (HbSS) and hemoglobinopathy SC (HbSC). Our results show differences in a number of these genes. For the HbSS group, when compared to the control group, the following genes showed differential expression: IL1RAP (2.76-fold), BCL6 (4.49-fold), CXCL10 (-2.12-fold), CXCR1 (-3.66-fold), and C3 (-2.0-fold). On the other hand, the HbSC group presented differential expressions of the following genes, when compared to the control group: IL1RAP (4.33-fold), CXCL1 (3.05-fold), BCL6 (4.13-fold), CXCL10 (-3.32-fold), C3 (-2.0-fold), and TLR3 (2.38-fold). Taken together, these data strongly suggest a differential expression of several inflammatory genes in both SCD (HbSS and HbSC), indicating that the placenta might become an environment with hypoxia, and increased inflammation, which could lead to improper placental development. (AU)

FAPESP's process: 08/57441-0 - Clinical, cellular and molecular alterations in hemoglobinopathies and other hereditary hemolytic anemias
Grantee:Fernando Ferreira Costa
Support type: Research Projects - Thematic Grants
FAPESP's process: 14/00984-3 - Red blood cell disorders: pathophysiology and new therapeutic approaches
Grantee:Fernando Ferreira Costa
Support type: Research Projects - Thematic Grants