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Sciarra R, Merli M, Cristinelli C, Lucioni M, Zibellini S, Riboni R, Furlan D, Uccella S, Zerbi C, Bianchi B, Gotti M, Ferretti VV, Varraso C, Fraticelli S, Lazic T, Defrancesco I, Mora B, Libera L, Mazzacane A, Carpi F, Berliner M, Neri G, Rizzo E, De Paoli F, Sessa F, Passamonti F, Paulli M, Arcaini L. Molecular characterization of diffuse large B-cell lymphomas associated with hepatitis C virus infection. Br J Haematol 2024. [PMID: 38442902 DOI: 10.1111/bjh.19378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
Hepatitis C virus (HCV)-associated diffuse large B-cell lymphoma (DLBCL) displays peculiar clinicopathological characteristics, but its molecular landscape is not fully elucidated. In this study, we investigated the clinicopathological and molecular features of 54 patients with HCV-associated DLBCL. The median age was 71 years. An underlying marginal zone lymphoma component was detected in 14.8% of cases. FISH analysis showed rearrangements involving BCL6 in 50.9% of cases, MYC in 11.3% and BCL2 in 3.7%. Lymph2Cx-based assay was successful in 38 cases, recognizing 16 cases (42.1%) as ABC and 16 cases as GCB subtypes, while six resulted unclassified. ABC cases exhibited a higher lymphoma-related mortality (LRM). Next-generation sequencing analysis showed mutations in 158/184 evaluated genes. The most frequently mutated genes were KMT2D (42.6%), SETD1B (33.3%), RERE (29.4%), FAS and PIM1 (27.8%) and TBL1XR1 (25.9%). A mutation in the NOTCH pathway was detected in 25.9% of cases and was associated with worst LRM. Cluster analysis by LymphGen classified 29/54 cases within definite groups, including BN2 in 14 (48.2%), ST2 in seven (24.2%) and MCD and EZB in four each (13.8%). Overall, these results indicate a preferential marginal zone origin for a consistent subgroup of HCV-associated DLBCL cases and suggest potential implications for molecularly targeted therapies.
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Affiliation(s)
- Roberta Sciarra
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Michele Merli
- Division of Hematology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Marco Lucioni
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Anatomic Pathology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Silvia Zibellini
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Roberta Riboni
- Anatomic Pathology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Daniela Furlan
- Anatomic Pathology Unit, University of Insubria, Ospedale di Circolo, Varese, Italy
| | - Silvia Uccella
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Pathology Service, IRCCS, Humanitas Research Hospital, Milan, Italy
| | - Caterina Zerbi
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Benedetta Bianchi
- Division of Hematology, University Hospital Ospedale di Circolo e Fondazione Macchi-ASST Sette Laghi, Varese, Italy
| | - Manuel Gotti
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Chiara Varraso
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Sara Fraticelli
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Anatomic Pathology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Tanja Lazic
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Irene Defrancesco
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Medical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
| | - Barbara Mora
- Division of Hematology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Laura Libera
- Anatomic Pathology Unit, University of Insubria, Ospedale di Circolo, Varese, Italy
| | | | - Federico Carpi
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Martha Berliner
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Giuseppe Neri
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | | | | | - Fausto Sessa
- Anatomic Pathology Unit, University of Insubria, Ospedale di Circolo, Varese, Italy
| | - Francesco Passamonti
- Division of Hematology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
- University of Milan, Milan, Italy
| | - Marco Paulli
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Anatomic Pathology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Luca Arcaini
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Division of Hematology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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