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Chronic Brucellosis Patients Retain Low Frequency of CD4+ T-Lymphocytes Expressing CD25 and CD28 afterEscherichiacoli LPS Stimulation of PHA-Cultured PBMCs
Joint Authors
Skendros, Panagiotis
Boura, Panagiota
Tselios, Konstantinos
Sarantopoulos, Alexandros
Source
Journal of Immunology Research
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-12-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Chronic brucellosis patients display a defective Th1 response to PHA.
We have previously shown that heat-killed B.
abortus (HKBA) can downregulate the PHA-induced increase of CD4+/CD25+ and CD14+/CD80+ cells of brucellosis patients.
In the present study, we investigate the effect of E.
coli LPS, as a potent stimulant of monocytes and autologous T-lymphocytes, on the PHA-cultured PBMCs of the same groups of patients.
Thirteen acute brucellosis (AB) patients, 22 chronic brucellosis (CB) patients, 11 “cured” subjects, and 15 healthy volunteers were studied.
The percentage of CD4+/CD25+ and CD4+/CD28+ T-lymphocytes as well as CD14+/CD80+ monocytes were analyzed by flow cytometry after PBMCs culture with PHA plus E.
coli LPS.
A significant decrease in the percentage of CD4+/CD25+ and CD4+/CD28+ T-lymphocytes was observed in CB compared to AB.
In HKBA cultures, compared to E.
coli LPS-cultures, there was a significant reduction of CD4+/CD25+ T-lymphocytes in all groups and CD14+/CD80+ in patients groups.
We suggest that Brucella can modulate host immune response, leading to T-cell anergy and chronic infection.
American Psychological Association (APA)
Skendros, Panagiotis& Sarantopoulos, Alexandros& Tselios, Konstantinos& Boura, Panagiota. 2008. Chronic Brucellosis Patients Retain Low Frequency of CD4+ T-Lymphocytes Expressing CD25 and CD28 afterEscherichiacoli LPS Stimulation of PHA-Cultured PBMCs. Journal of Immunology Research،Vol. 2008, no. 2008, pp.1-8.
https://search.emarefa.net/detail/BIM-988062
Modern Language Association (MLA)
Skendros, Panagiotis…[et al.]. Chronic Brucellosis Patients Retain Low Frequency of CD4+ T-Lymphocytes Expressing CD25 and CD28 afterEscherichiacoli LPS Stimulation of PHA-Cultured PBMCs. Journal of Immunology Research No. 2008 (2008), pp.1-8.
https://search.emarefa.net/detail/BIM-988062
American Medical Association (AMA)
Skendros, Panagiotis& Sarantopoulos, Alexandros& Tselios, Konstantinos& Boura, Panagiota. Chronic Brucellosis Patients Retain Low Frequency of CD4+ T-Lymphocytes Expressing CD25 and CD28 afterEscherichiacoli LPS Stimulation of PHA-Cultured PBMCs. Journal of Immunology Research. 2008. Vol. 2008, no. 2008, pp.1-8.
https://search.emarefa.net/detail/BIM-988062
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-988062