Low levels of the immunoregulator Semaphorin 4D (CD100) in sera of HIV patients

Copyright © 2017 Elsevier Inc. All rights reserved.

Détails bibliographiques
Publié dans:Clinical immunology (Orlando, Fla.). - 1999. - 191(2018) vom: 15. Juni, Seite 88-93
Auteur principal: Vadasz, Z (Auteur)
Autres auteurs: Elbirt, D, Radian, S, Bezalel-Rosenberg, S, Mahlab-Guri, K, Toubi, E, Asher, I, Sthoeger, Z
Format: Article en ligne
Langue:English
Publié: 2018
Accès à la collection:Clinical immunology (Orlando, Fla.)
Sujets:Journal Article CD4 T cells CD8 T cells HAART HIV Soluble CD100/SEMA4D Soluble CD72 Antigens, CD Antigens, Differentiation, B-Lymphocyte CD100 antigen plus... CD72 protein, human Semaphorins
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245 1 0 |a Low levels of the immunoregulator Semaphorin 4D (CD100) in sera of HIV patients 
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520 |a INTRODUCTION: Semaphorin-4D (CD100), generated by CD4/CD8 T-cells and its receptor on B cells - CD72, play a role in immune regulation. Both have soluble forms - sCD100/sCD72 
520 |a METHODS: sCD100 and sCD72 levels were determined by ELISA (MyBioSource, USA) 
520 |a RESULTS: 28 chronic HIV patients and 50 matched healthy volunteers participated in our study. Before treatment, CD4 T-cells counts were 267 ± 216 cells/mcl and viral load (VL) was 586,675 ± 1897,431 copies/ml. Two years following HAART, CD4 T-cells counts rose to 475 ± 264 cells/mcl and VL dropped to 2050 ± 10,539 copies/ml. CD8 T-cells counts were stable. sCD72 levels prior (4.13 ± 2.03 ng/ml) and following HAART (3.53 ± 2.01 ng/ml) were similar to control levels (4.51 ± 2.66 ng/ml). sCD100 levels before (40.47 ± 31.4 ng/ml) and following HAART (37.68 ± 29.44 ng/ml) were significantly lower compared to controls (99.67 ± 36.72 ng/ml) despite the significant increase in CD4 T-cells counts 
520 |a CONCLUSIONS: The permanent low levels of the immunoregulator sCD100 suggest a role for CD100 in the immune dysfunction and T cells exhaustion of HIV 
650 4 |a Journal Article 
650 4 |a CD4 T cells 
650 4 |a CD8 T cells 
650 4 |a HAART 
650 4 |a HIV 
650 4 |a Soluble CD100/SEMA4D 
650 4 |a Soluble CD72 
650 7 |a Antigens, CD  |2 NLM 
650 7 |a Antigens, Differentiation, B-Lymphocyte  |2 NLM 
650 7 |a CD100 antigen  |2 NLM 
650 7 |a CD72 protein, human  |2 NLM 
650 7 |a Semaphorins  |2 NLM 
700 1 |a Elbirt, D  |e verfasserin  |4 aut 
700 1 |a Radian, S  |e verfasserin  |4 aut 
700 1 |a Bezalel-Rosenberg, S  |e verfasserin  |4 aut 
700 1 |a Mahlab-Guri, K  |e verfasserin  |4 aut 
700 1 |a Toubi, E  |e verfasserin  |4 aut 
700 1 |a Asher, I  |e verfasserin  |4 aut 
700 1 |a Sthoeger, Z  |e verfasserin  |4 aut 
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