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Kazak, Esra, Costa Oliveria, Sergio, Goral, Güher, Akalin, Halis, Yilmaz, Emel, Heper, Yasemin, Barbaros Oral, Haluk. (1389). Brucella abortus L7/L12 Recombinant Protein Induces Strong Th1 Response in Acute Brucellosis Patients. سامانه مدیریت نشریات علمی, 7(3), 132-141. doi: 10.22034/iji.2010.17050
Esra Kazak; Sergio Costa Oliveria; Güher Goral; Halis Akalin; Emel Yilmaz; Yasemin Heper; Haluk Barbaros Oral. "Brucella abortus L7/L12 Recombinant Protein Induces Strong Th1 Response in Acute Brucellosis Patients". سامانه مدیریت نشریات علمی, 7, 3, 1389, 132-141. doi: 10.22034/iji.2010.17050
Kazak, Esra, Costa Oliveria, Sergio, Goral, Güher, Akalin, Halis, Yilmaz, Emel, Heper, Yasemin, Barbaros Oral, Haluk. (1389). 'Brucella abortus L7/L12 Recombinant Protein Induces Strong Th1 Response in Acute Brucellosis Patients', سامانه مدیریت نشریات علمی, 7(3), pp. 132-141. doi: 10.22034/iji.2010.17050
Kazak, Esra, Costa Oliveria, Sergio, Goral, Güher, Akalin, Halis, Yilmaz, Emel, Heper, Yasemin, Barbaros Oral, Haluk. Brucella abortus L7/L12 Recombinant Protein Induces Strong Th1 Response in Acute Brucellosis Patients. سامانه مدیریت نشریات علمی, 1389; 7(3): 132-141. doi: 10.22034/iji.2010.17050

Brucella abortus L7/L12 Recombinant Protein Induces Strong Th1 Response in Acute Brucellosis Patients

Iranian Journal of Immunology
مقاله 1، دوره 7، شماره 3، آذر 2010، صفحه 132-141    اصل مقاله (1.98 M)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22034/iji.2010.17050
نویسندگان
Esra Kazak1؛ Sergio Costa Oliveria2؛ Güher Goral3؛ Halis Akalin1؛ Emel Yilmaz1؛ Yasemin Heper1؛ Haluk Barbaros Oral* 3
1Department of Infectious Diseases and Clinical Microbiology, Uludağ University Faculty of Medicine, Bursa, Türkiye
2Department of Biochemistry and Immunology, Federal University of Minas Gerais, Brazil
3Department of Medical Microbiology, Immunology Unit, Uludağ University Faculty of Medicine, Bursa, Türkiye
چکیده
Background: Because of high morbidity of the brucellosis in humans and the potential use of the microorganism as an agent of biologic warfare, protection of effective vaccines and specific diagnostic reagents become necessary to eradicate brucellosis.
Objective: In this study we aimed to investigate the cytokine responses and changes in peripheral blood lymphocyte subgroups of acute brucellosis patients in response to L7/L12 and glyceraldehyde 3-phosphate dehydrogenase (GAPDH) recombinant proteins derived from Brucella abortus.
Methods: levels of IFN-γ, IL-4 and IL-10 secreted from PBMCs of 25 acute brucellosis patients and 15 healthy controls, stimulated with Phytohemagglutinin (PHA), L7/L12 or GAPDH were measured by ELISA. Furthermore alterations in lymphocyte subgroups in response to these Brucella antigens were determined by flow cytometry.
Results: Extracellular IFN-γ levels were found to be elevated after stimulation with L7/L12 in patients with acute brucellosis, whereas no significant changes were found in IL-4 and IL-10 levels. Similar data was also obtained with GAPDH, but the stimulation of IFN-γ production was not observed in all patients and was not as strong as that observed for L7/L12. Moreover, when the distribution of lymphocytes subgroups (CD3+, CD3+CD4+, CD3+CD8+, CD4+CD25+, CD3+CD69+ and CD3+CD152+) was evaluated, it was found that the stimulation with L7/L12 and GAPDH only led to an increase in the percentage of CD3+CD69+ lymphocytes.
Conclusion: These data indicate that Brucella abortus L7/L12 or GAPDH induce a Th1 type immune response in acute brucellosis patients. Additionally, these recombinant proteins, especially L7/L12, may be used in new vaccine preparations and diagnostic tests.
کلیدواژه‌ها
Brucellosis؛ Cytokine؛ Recombinant Proteins؛ T Lymphocytes
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