PMID- 29538651 OWN - NLM STAT- MEDLINE DCOM- 20191104 LR - 20191104 IS - 1537-6591 (Electronic) IS - 1058-4838 (Print) IS - 1058-4838 (Linking) VI - 67 IP - 3 DP - 2018 Jul 18 TI - Emergence of Polyfunctional Cytotoxic CD4+ T Cells in Mycobacterium avium Immune Reconstitution Inflammatory Syndrome in Human Immunodeficiency Virus-Infected Patients. PG - 437-446 LID - 10.1093/cid/ciy016 [doi] AB - BACKGROUND: Immune reconstitution inflammatory syndrome (IRIS) is an aberrant inflammatory response in individuals with advanced human immunodeficiency virus (HIV) infection, after antiretroviral therapy (ART) initiation. The pathogenesis of Mycobacterium avium complex (MAC)-associated IRIS has not been fully elucidated. METHODS: We investigated monocyte and CD4+ T-cell responses in vitro, tumor necrosis factor (TNF) expression in tissues, and plasma cytokines and inflammatory markers, in 13 HIV-infected patients with MAC-IRIS and 14 HIV-uninfected patients with pulmonary MAC infection. RESULTS: Prior to ART, HIV-infected compared with HIV-uninfected patients, had reduced TNF+ monocytes (P = .013), although similar cytokine (interferon gamma [IFN-gamma], TNF, interleukin 2 [IL-2], and interleukin 17 [IL-17])-expressing CD4+ T cells. During IRIS, monocyte cytokine production was restored. IFN-gamma+ (P = .027), TNF+ (P = .004), and polyfunctional CD4+ T cells (P = 0.03) also increased. These effectors were T-betlow, and some expressed markers of degranulation and cytotoxic potential. Blockade of cytotoxic T-lymphocyte associated protein 4 and lymphocyte activation gene-3 further increased CD4+ T-cell cytokine production. Tissue immunofluorescence showed higher proportions of CD4+ and CD68+ (monocyte/macrophage) cells expressed TNF during IRIS compared with HIV-uninfected patients. Plasma IFN-gamma (P = .048), C-reactive protein (P = .008), and myeloperoxidase (P < .001) levels also increased, whereas interleukin 10 decreased (P = .008) during IRIS. CONCLUSIONS: Advanced HIV infection was associated with impaired MAC responses. Restoration of monocyte responses and expansion of polyfunctional MAC-specific T-betlow CD4+ T cells with cytotoxic potential after ART initiation may overwhelm existing regulatory and inhibitory mechanisms, leading to MAC-IRIS. FAU - Hsu, Denise C AU - Hsu DC AD - Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland. FAU - Breglio, Kimberly F AU - Breglio KF AD - Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland. FAU - Pei, Luxin AU - Pei L AD - Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland. FAU - Wong, Chun-Shu AU - Wong CS AD - Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland. FAU - Andrade, Bruno B AU - Andrade BB AD - Instituto Goncalo Moniz, Fundacao Oswaldo Cruz, Salvador, Bahia, Brazil. AD - Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Fundacao Jose Silveira, Salvador, Bahia, Brazil. AD - Curso de Medicina, Faculdade de Tecnologia e Ciencias, Salvador, Bahia, Brazil. AD - Wellcome Centre for Infectious Disease Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa. AD - Division of Infectious Diseases, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee. FAU - Sheikh, Virginia AU - Sheikh V AD - Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland. FAU - Smelkinson, Margery AU - Smelkinson M AD - Biological Imaging Section, NIAID, Bethesda, Maryland. FAU - Petrovas, Constantinos AU - Petrovas C AD - Tissue Analysis Core Section, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland. FAU - Rupert, Adam AU - Rupert A AD - Functional Immunology Section, AIDS Monitoring Laboratory, SAIC-Frederick, National Cancer Institute, National Institutes of Health, Frederick, Maryland. FAU - Gil-Santana, Leonardo AU - Gil-Santana L AD - Instituto Goncalo Moniz, Fundacao Oswaldo Cruz, Salvador, Bahia, Brazil. AD - Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Fundacao Jose Silveira, Salvador, Bahia, Brazil. AD - Curso de Medicina, Faculdade de Tecnologia e Ciencias, Salvador, Bahia, Brazil. FAU - Zelazny, Adrian AU - Zelazny A AD - Department of Laboratory Medicine, NIAID, NIH, Bethesda, Maryland. FAU - Holland, Steven M AU - Holland SM AD - Laboratory of Clinical Infectious Diseases, NIAID Bethesda, Maryland. FAU - Olivier, Kenneth AU - Olivier K AD - Pulmonary Clinical Medicine Section, National Heart, Lung, and Blood Institute. FAU - Barber, Daniel AU - Barber D AD - Laboratory of Parasitic Diseases, NIAID, NIH, Bethesda, Maryland. FAU - Sereti, Irini AU - Sereti I AD - Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland. LA - eng GR - HHMI/Howard Hughes Medical Institute/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PT - Research Support, Non-U.S. Gov't PL - United States TA - Clin Infect Dis JT - Clinical infectious diseases : an official publication of the Infectious Diseases Society of America JID - 9203213 RN - 0 (Cytokines) SB - IM MH - Adult MH - Aged MH - CD4-Positive T-Lymphocytes/*immunology MH - Cohort Studies MH - Cytokines/immunology MH - Female MH - HIV Infections/*complications/*immunology/microbiology MH - Humans MH - Immune Reconstitution Inflammatory Syndrome/immunology/*microbiology/virology MH - Male MH - Middle Aged MH - Mycobacterium avium MH - T-Lymphocytes, Cytotoxic/*immunology PMC - PMC6248720 EDAT- 2018/03/15 06:00 MHDA- 2019/11/05 06:00 PMCR- 2019/08/01 CRDT- 2018/03/15 06:00 PHST- 2017/10/04 00:00 [received] PHST- 2018/02/02 00:00 [accepted] PHST- 2018/03/15 06:00 [pubmed] PHST- 2019/11/05 06:00 [medline] PHST- 2018/03/15 06:00 [entrez] PHST- 2019/08/01 00:00 [pmc-release] AID - 4925763 [pii] AID - ciy016 [pii] AID - 10.1093/cid/ciy016 [doi] PST - ppublish SO - Clin Infect Dis. 2018 Jul 18;67(3):437-446. doi: 10.1093/cid/ciy016.