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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Identification of a major locus, TNF1, that controls BCG-triggered tumor necrosis factor production by leukocytes in an area hyperendemic for tuberculosis
Clinical Infectious Diseases, Volume 57, No. 7, Year 2013
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Description
Background. Tumor necrosis factor (TNF) is a key immune regulator of tuberculosis resistance, as exemplified by the highly increased risk of tuberculosis disease among individuals receiving TNF-blocker therapy. Methods. We determined the extent of TNF production after stimulation with BCG or BCG plus interferon gamma (IFN-γ) using a whole blood assay in 392 children belonging to 135 nuclear families from an area hyperendemic for tuberculosis in South Africa.We conducted classical univariate and bivariate genome-wide linkage analysis of TNF production using the data from both stimulation protocols by means of an extension of the maximum-likelihoodbinomial method for quantitative trait loci to multivariate analysis. Results. Stimulation of whole blood by either BCG or BCG plus IFN-γ resulted in a range of TNF release across subjects. Extent of TNF production following both stimulation protocols was highly correlated (r = 0.81).We failed to identify genetic linkage of TNF release when considering each stimulus separately. However, using a multivariate approach, we detected a major pleiotropic locus (P < 10-5) on chromosome region 11p15, termed TNF locus 1 (TNF1), that controlled TNF production after stimulation by both BCG alone and BCG plus IFN-γ. Conclusions. The TNF1 locus was mapped in the vicinity of the TST1 locus, previously identified in the same family sample, that controls tuberculin skin test (TST) negativity per se, that is, T-cell-independent resistance to Mycobacterium tuberculosis infection. This suggested that there is a connection between TST negativity per se and TNF production. © The Author 2013. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. All rights reserved.
Available Materials
https://efashare.b-cdn.net/share/pmc/articles/PMC3765013/bin/supp_57_7_963__index.html
https://efashare.b-cdn.net/share/pmc/articles/PMC3765013/bin/supp_cit438_cit438supp.doc
Authors & Co-Authors
Cobat, Aurélie
Canada, Montreal
Mcgill Faculty of Medicine and Health Sciences
Hoal, Eileen G.
South Africa, Stellenbosch
Stellenbosch University
Gallant, Caroline Julie
Canada, Montreal
Mcgill Faculty of Medicine and Health Sciences
Simkin, Leah
Canada, Montreal
Mcgill Faculty of Medicine and Health Sciences
Black, Gillian Frances
South Africa, Stellenbosch
Stellenbosch University
Stanley, Kim
South Africa, Stellenbosch
Stellenbosch University
Jaïs, Jean Philippe
France, Paris
Université Paris Cité
Yu, Tingheng
Canada, Montreal
Mcgill Faculty of Medicine and Health Sciences
Boland, Anne
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Grange, Ghislain
France, Paris
Hôpital Necker Enfants Malades
Delacourt, Christophe
France, Paris
Hôpital Necker Enfants Malades
Van Helden, Paul D.
South Africa, Stellenbosch
Stellenbosch University
Casanova, Jean Laurent
France, Paris
Hôpital Necker Enfants Malades
United States, New York
Rockefeller University
Abel, Laurent
France, Paris
Hôpital Necker Enfants Malades
United States, New York
Rockefeller University
Alcaïs, Alexandre
France, Paris
Hôpital Necker Enfants Malades
United States, New York
Rockefeller University
France, Paris
Hopital Cochin Ap-hp
Schurr, Erwin
Canada, Montreal
Mcgill Faculty of Medicine and Health Sciences
Statistics
Citations: 36
Authors: 16
Affiliations: 7
Identifiers
Doi:
10.1093/cid/cit438
ISSN:
10584838
e-ISSN:
15376591
Research Areas
Cancer
Genetics And Genomics
Maternal And Child Health
Study Approach
Quantitative
Study Locations
South Africa