PMID- 22343919 OWN - NLM STAT- MEDLINE DCOM- 20120619 LR - 20220408 IS - 1528-0020 (Electronic) IS - 0006-4971 (Linking) VI - 119 IP - 14 DP - 2012 Apr 5 TI - Natural killer cell degranulation capacity predicts early onset of the immune reconstitution inflammatory syndrome (IRIS) in HIV-infected patients with tuberculosis. PG - 3315-20 LID - 10.1182/blood-2011-09-377523 [doi] AB - Immune reconstitution inflammatory syndrome (IRIS) is a common and potentially serious complication occurring in HIV-infected patients being treated for tuberculosis (TB) using combined antiretroviral treatment. A role of adaptive immunity has been suggested in the onset of IRIS, whereas the role of natural killer (NK) cells has not yet been explored. The present study sought to examine the involvement of NK cells in the onset of IRIS in HIV-infected patients with TB and to identify predictive markers of IRIS. A total of 128 HIV-infected patients with TB from the Cambodian Early versus Late Introduction of Antiretroviral Drugs (CAMELIA) trial were enrolled in Cambodia. Thirty-seven of the 128 patients developed IRIS. At inclusion, patients had low CD4 cell counts (27 cells/mm(3)) and high plasma viral load (5.76 and 5.50 log/mL in IRIS and non-IRIS patients, respectively). At baseline, NK-cell degranulation capacity was significantly higher in IRIS patients than in non-IRIS patients (9.6% vs 6.38%, P < .005). At IRIS onset, degranulation capacity did not differ between patients, whereas activating receptor expression was lower in IRIS patients. Patients with degranulation levels > 10.84% had a higher risk of IRIS (P = .002 by log-rank test). Degranulation level at baseline was the most important IRIS predictor (hazard ratio = 4.41; 95% confidence interval, 1.60-12.16). We conclude that NK-degranulation levels identify higher IRIS risk in HIV-infected patients with TB. FAU - Pean, Polidy AU - Pean P AD - Institut Pasteur in Cambodia, Phnom Penh, Cambodia. FAU - Nerrienet, Eric AU - Nerrienet E FAU - Madec, Yoann AU - Madec Y FAU - Borand, Laurence AU - Borand L FAU - Laureillard, Didier AU - Laureillard D FAU - Fernandez, Marcelo AU - Fernandez M FAU - Marcy, Olivier AU - Marcy O FAU - Sarin, Chan AU - Sarin C FAU - Phon, Kerya AU - Phon K FAU - Taylor, Sylvia AU - Taylor S FAU - Pancino, Gianfranco AU - Pancino G FAU - Barre-Sinoussi, Francoise AU - Barre-Sinoussi F FAU - Scott-Algara, Daniel AU - Scott-Algara D CN - Cambodian Early versus Late Introduction of Antiretroviral Drugs (CAMELIA) study team LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120217 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, T-Lymphocyte) RN - 0 (CD69 antigen) RN - 0 (Lectins, C-Type) RN - 0 (Receptors, Natural Killer Cell) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Adult MH - Antigens, CD/metabolism MH - Antigens, Differentiation, T-Lymphocyte/metabolism MH - Antiretroviral Therapy, Highly Active MH - Cell Degranulation/*immunology MH - Coinfection/immunology MH - Female MH - HIV Infections/complications/drug therapy/*immunology MH - Humans MH - Immune Reconstitution Inflammatory Syndrome/complications/*immunology MH - Interferon-gamma/metabolism MH - Killer Cells, Natural/*immunology/metabolism MH - Lectins, C-Type/metabolism MH - Male MH - Receptors, Natural Killer Cell/metabolism MH - Tuberculosis/complications/*immunology FIR - Sok, Thim IR - Sok T FIR - Blanc, Francois-Xavier IR - Blanc FX FIR - Goldfeld, Anne E IR - Goldfeld AE FIR - Laureillard, Didier IR - Laureillard D FIR - Rekacewitz, Claire IR - Rekacewitz C FIR - Vong, Sirenda IR - Vong S EDAT- 2012/02/22 06:00 MHDA- 2012/06/20 06:00 CRDT- 2012/02/21 06:00 PHST- 2012/02/21 06:00 [entrez] PHST- 2012/02/22 06:00 [pubmed] PHST- 2012/06/20 06:00 [medline] AID - S0006-4971(20)48031-0 [pii] AID - 10.1182/blood-2011-09-377523 [doi] PST - ppublish SO - Blood. 2012 Apr 5;119(14):3315-20. doi: 10.1182/blood-2011-09-377523. Epub 2012 Feb 17.