PMID- 36092833 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220913 IS - 2328-8957 (Print) IS - 2328-8957 (Electronic) IS - 2328-8957 (Linking) VI - 9 IP - 9 DP - 2022 Sep TI - Hepatitis B-Related Hepatic Flare During Immune Reconstitution Syndrome After Antiretroviral Treatment Initiation in an HBV Surface Antigen-Positive Patient With HIV: Viroimmunological and Histological Characterization. PG - ofac451 LID - 10.1093/ofid/ofac451 [doi] LID - ofac451 AB - HIV and hepatitis B virus (HBV) coinfection is relatively common. Initiation of antiretroviral therapy (ART) in people with HIV (PWH) causes a progressive restoration of cell-mediated immune functions. In the presence of overt or occult coinfections, immune restoration might lead to immune reconstitution inflammatory syndrome (IRIS). Here, we describe the clinical, immunological, virological, and histological characterization of a case of HBV-related IRIS hepatitis in a PWH after ART initiation. A liver biopsy was performed during HBV-related IRIS hepatic flare, and liver samples were analyzed through immunohistochemistry and molecular techniques, with the assessment of intrahepatic HBV-DNA, covalently closed circular DNA, and HBV pregenomic RNA through a droplet digital polymerase chain reaction system. Immune activation and senescence were also longitudinally assessed. In this clinical case, the hepatic flare occurred 6 weeks after ART initiation with a therapeutic regimen including tenofovir alafenamide (TAF) and emtricitabine (FTC). The episode was self-limiting, characterized by hyperactivation of peripheral blood CD4+ and CD8+ T-lymphocytes, and resolved without ART discontinuation, leading to the achievement of HBsAg seroconversion (HBsAg-/HBsAb+) and HBV-DNA plasma undetectability. Notably, hyperactivation of the immune system plays a pivotal role in promoting the control of HBV replication, thus triggering the achievement of HBsAg seroconversion during treatment with TAF/FTC. CI - (c) The Author(s) 2022. Published by Oxford University Press on behalf of Infectious Diseases Society of America. FAU - Iannetta, Marco AU - Iannetta M AUID- ORCID: 0000-0002-6938-8627 AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Crea, Angela M A AU - Crea AMA AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Di Lorenzo, Andrea AU - Di Lorenzo A AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Campogiani, Laura AU - Campogiani L AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Teti, Elisabetta AU - Teti E AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Malagnino, Vincenzo AU - Malagnino V AUID- ORCID: 0000-0002-6561-5298 AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Compagno, Mirko AU - Compagno M AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Coppola, Luigi AU - Coppola L AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Piermatteo, Lorenzo AU - Piermatteo L AD - Department of Experimental Medicine, Tor Vergata University, Rome, Italy. FAU - Palmieri, Giampiero AU - Palmieri G AD - Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy. FAU - Cimino, Carolina AU - Cimino C AD - Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy. FAU - Salpini, Romina AU - Salpini R AD - Department of Experimental Medicine, Tor Vergata University, Rome, Italy. FAU - Zingaropoli, Maria A AU - Zingaropoli MA AD - Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy. FAU - Ciardi, Maria R AU - Ciardi MR AUID- ORCID: 0000-0002-0894-6496 AD - Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy. FAU - Mastroianni, Claudio M AU - Mastroianni CM AUID- ORCID: 0000-0002-1286-467X AD - Department of Public Health and Infectious Diseases, Sapienza University, Rome, Italy. FAU - Parisi, Saverio G AU - Parisi SG AD - Department of Molecular Medicine, University of Padova, Padua, Italy. FAU - Svicher, Valentina AU - Svicher V AUID- ORCID: 0000-0002-2377-504X AD - Department of Experimental Medicine, Tor Vergata University, Rome, Italy. AD - Department of Biology, Tor Vergata University, Rome, Italy. FAU - Andreoni, Massimo AU - Andreoni M AD - Department of System Medicine, Tor Vergata University, Rome, Italy. FAU - Sarmati, Loredana AU - Sarmati L AD - Department of System Medicine, Tor Vergata University, Rome, Italy. LA - eng PT - Case Reports DEP - 20220829 PL - United States TA - Open Forum Infect Dis JT - Open forum infectious diseases JID - 101637045 PMC - PMC9454030 OTO - NOTNLM OT - AIDS OT - HBV OT - IRIS OT - biopsy OT - cccDNA OT - immune activation OT - pgRNA EDAT- 2022/09/13 06:00 MHDA- 2022/09/13 06:01 PMCR- 2022/08/29 CRDT- 2022/09/12 04:22 PHST- 2022/07/12 00:00 [received] PHST- 2022/08/26 00:00 [accepted] PHST- 2022/09/12 04:22 [entrez] PHST- 2022/09/13 06:00 [pubmed] PHST- 2022/09/13 06:01 [medline] PHST- 2022/08/29 00:00 [pmc-release] AID - ofac451 [pii] AID - 10.1093/ofid/ofac451 [doi] PST - epublish SO - Open Forum Infect Dis. 2022 Aug 29;9(9):ofac451. doi: 10.1093/ofid/ofac451. eCollection 2022 Sep.