PMID- 30215671 OWN - NLM STAT- MEDLINE DCOM- 20200130 LR - 20231005 IS - 1537-6591 (Electronic) IS - 1058-4838 (Print) IS - 1058-4838 (Linking) VI - 68 IP - 2 DP - 2019 Jan 7 TI - Increased Metabolic Activity on 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography in Human Immunodeficiency Virus-Associated Immune Reconstitution Inflammatory Syndrome. PG - 229-238 LID - 10.1093/cid/ciy454 [doi] AB - BACKGROUND: Immune reconstitution inflammatory syndrome (IRIS) represents an unexpected inflammatory response shortly after initiation of antiretroviral therapy (ART) in some human immunodeficiency virus (HIV)-infected patients with underlying neoplasia or opportunistic infections, including tuberculosis. We hypothesized that IRIS is associated with increased glycolysis and that 18F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET/CT) could help identify high-risk subjects. METHODS: In this prospective cohort study, 30 HIV-infected patients (CD4+ count <100 cells/microL) underwent FDG-PET/CT scans at baseline and 4-8 weeks after ART initiation. Ten patients developed IRIS (6 mycobacterial). RESULTS: At baseline, total glycolytic activity, total lesion volume, and maximum standardized uptake values (SUVs) of pathologic FDG uptake (reflective of opportunistic disease burden) were significantly higher in IRIS vs non-IRIS (P = .010, .017, and .029, respectively) and significantly correlated with soluble inflammatory biomarkers (interferon-gamma, myeloperoxidase, tumor necrosis factor, interleukin 6, soluble CD14). Baseline bone marrow (BM) and spleen FDG uptake was higher in mycobacterial IRIS specifically. After ART initiation, BM and spleen mean SUV decreased in non-IRIS (P = .004, .013) but not IRIS subjects. Our results were supported by significantly higher glucose transporter 1 (Glut-1) expression of CD4+ cells and monocytes after ART initiation in IRIS/mycobacterial IRIS compared with non-IRIS patients. CONCLUSIONS: We conclude that increased pathologic metabolic activity on FDG-PET/CT prior to ART initiation is associated with IRIS development and correlates with inflammatory biomarkers. Abnormally elevated BM and spleen metabolism is associated with mycobacterial IRIS, HIV viremia, and Glut-1 expression on CD4+ cells and monocytes. CLINICAL TRIALS REGISTRATION: NCT02147405. FAU - Hammoud, Dima A AU - Hammoud DA AD - Center for Infectious Diseases Imaging, Clinical Center, National Institutes of Health (NIH). FAU - Boulougoura, Afroditi AU - Boulougoura A AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Papadakis, Georgios Z AU - Papadakis GZ AD - Center for Infectious Diseases Imaging, Clinical Center, National Institutes of Health (NIH). FAU - Wang, Jing AU - Wang J AD - Clinical Research Directorate/Clinical Monitoring Research Program, Leidos Biomedical Research, Inc, National Cancer Institute, Frederick. FAU - Dodd, Lori E AU - Dodd LE AD - Biostatistics Research Branch, NIAID, NIH, Bethesda. FAU - Rupert, Adam AU - Rupert A AD - Leidos Biomedical Research Inc, Frederick National Laboratory for Cancer Research. FAU - Higgins, Jeanette AU - Higgins J AD - Leidos Biomedical Research Inc, Frederick National Laboratory for Cancer Research. FAU - Roby, Gregg AU - Roby G AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Metzger, Dorinda AU - Metzger D AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Laidlaw, Elizabeth AU - Laidlaw E AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Mican, JoAnn M AU - Mican JM AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Pau, Alice AU - Pau A AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Lage, Silvia AU - Lage S AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Wong, Chun-Shu AU - Wong CS AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Lisco, Andrea AU - Lisco A AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Manion, Maura AU - Manion M AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Sheikh, Virginia AU - Sheikh V AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. FAU - Millo, Corina AU - Millo C AD - Positron Emission Tomography Department, Clinical Center, NIH, Bethesda, Maryland. FAU - Sereti, Irini AU - Sereti I AD - Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), NIH, Bethesda. LA - eng SI - ClinicalTrials.gov/NCT02147405 GR - HHSN261200800001C/RC/CCR NIH HHS/United States GR - HHSN261200800001E/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural 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 (Anti-HIV Agents) RN - 0 (Biomarkers) RN - 0 (Glucose Transporter Type 1) RN - 0 (Radiopharmaceuticals) RN - 0Z5B2CJX4D (Fluorodeoxyglucose F18) SB - IM MH - Adult MH - Anti-HIV Agents/*adverse effects/therapeutic use MH - Biomarkers MH - Female MH - *Fluorodeoxyglucose F18 MH - Gene Expression Regulation/drug effects MH - Glucose Transporter Type 1/genetics/metabolism MH - HIV Infections/*complications MH - Humans MH - Immune Reconstitution Inflammatory Syndrome/*diagnostic imaging/*metabolism MH - Male MH - Monocytes/metabolism MH - *Positron Emission Tomography Computed Tomography MH - Radiopharmaceuticals/pharmacology MH - T-Lymphocytes/metabolism PMC - PMC6321853 EDAT- 2018/09/15 06:00 MHDA- 2020/01/31 06:00 PMCR- 2019/09/11 CRDT- 2018/09/15 06:00 PHST- 2018/03/03 00:00 [received] PHST- 2018/05/23 00:00 [accepted] PHST- 2018/09/15 06:00 [pubmed] PHST- 2020/01/31 06:00 [medline] PHST- 2018/09/15 06:00 [entrez] PHST- 2019/09/11 00:00 [pmc-release] AID - 5095310 [pii] AID - ciy454 [pii] AID - 10.1093/cid/ciy454 [doi] PST - ppublish SO - Clin Infect Dis. 2019 Jan 7;68(2):229-238. doi: 10.1093/cid/ciy454.