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ABSTRACT: Background
Autoantibodies against interferon-γ are associated with severe disseminated opportunistic infection, but their importance and prevalence are unknown.Methods
We enrolled 203 persons from sites in Thailand and Taiwan in five groups: 52 patients with disseminated, rapidly or slowly growing, nontuberculous mycobacterial infection (group 1); 45 patients with another opportunistic infection, with or without nontuberculous mycobacterial infection (group 2); 9 patients with disseminated tuberculosis (group 3); 49 patients with pulmonary tuberculosis (group 4); and 48 healthy controls (group 5). Clinical histories were recorded, and blood specimens were obtained.Results
Patients in groups 1 and 2 had CD4+ T-lymphocyte counts that were similar to those in patients in groups 4 and 5, and they were not infected with the human immunodeficiency virus (HIV). Washed cells obtained from patients in groups 1 and 2 had intact cytokine production and a response to cytokine stimulation. In contrast, plasma obtained from these patients inhibited the activity of interferon-γ in normal cells. High-titer anti-interferon-γ autoantibodies were detected in 81% of patients in group 1, 96% of patients in group 2, 11% of patients in group 3, 2% of patients in group 4, and 2% of controls (group 5). Forty other anticytokine autoantibodies were assayed. One patient with cryptococcal meningitis had autoantibodies only against granulocyte-macrophage colony-stimulating factor. No other anticytokine autoantibodies or genetic defects correlated with infections. There was no familial clustering.Conclusions
Neutralizing anti-interferon-γ autoantibodies were detected in 88% of Asian adults with multiple opportunistic infections and were associated with an adult-onset immunodeficiency akin to that of advanced HIV infection. (Funded by the National Institute of Allergy and Infectious Diseases and the National Institute of Dental and Craniofacial Research; ClinicalTrials.gov number, NCT00814827.).
SUBMITTER: Browne SK
PROVIDER: S-EPMC4190026 | biostudies-literature | 2012 Aug
REPOSITORIES: biostudies-literature
Browne Sarah K SK Burbelo Peter D PD Chetchotisakd Ploenchan P Suputtamongkol Yupin Y Kiertiburanakul Sasisopin S Shaw Pamela A PA Kirk Jennifer L JL Jutivorakool Kamonwan K Zaman Rifat R Ding Li L Hsu Amy P AP Patel Smita Y SY Olivier Kenneth N KN Lulitanond Viraphong V Mootsikapun Piroon P Anunnatsiri Siriluck S Angkasekwinai Nasikarn N Sathapatayavongs Boonmee B Hsueh Po-Ren PR Shieh Chi-Chang CC Brown Margaret R MR Thongnoppakhun Wanna W Claypool Reginald R Sampaio Elizabeth P EP Thepthai Charin C Waywa Duangdao D Dacombe Camilla C Reizes Yona Y Zelazny Adrian M AM Saleeb Paul P Rosen Lindsey B LB Mo Allen A Iadarola Michael M Holland Steven M SM
The New England journal of medicine 20120801 8
<h4>Background</h4>Autoantibodies against interferon-γ are associated with severe disseminated opportunistic infection, but their importance and prevalence are unknown.<h4>Methods</h4>We enrolled 203 persons from sites in Thailand and Taiwan in five groups: 52 patients with disseminated, rapidly or slowly growing, nontuberculous mycobacterial infection (group 1); 45 patients with another opportunistic infection, with or without nontuberculous mycobacterial infection (group 2); 9 patients with di ...[more]