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Kurz KS, Ott M, Kalmbach S, Steinlein S, Kalla C, Horn H, Ott G, Staiger AM. Large B-Cell Lymphomas in the 5th Edition of the WHO-Classification of Haematolymphoid Neoplasms-Updated Classification and New Concepts. Cancers (Basel) 2023; 15:cancers15082285. [PMID: 37190213 DOI: 10.3390/cancers15082285] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
The family/class of the large B-cell lymphomas (LBCL) in the 5th edition of the World Health Organization (WHO) classification of haematolymphoid tumors (WHO-HAEM5) features only a few major changes as compared to the 4th edition. In most entities, there are only subtle changes, many of them only representing some minor modifications in diagnostic terms. Major changes have been made in the diffuse large B-cell lymphomas (DLBCL)/high-grade B-cell lymphomas (HGBL) associated with MYC and BCL2 and/or BCL6 rearrangements. This category now consists of MYC and BCL2 rearranged cases exclusively, while the MYC/BCL6 double hit lymphomas now constitute genetic subtypes of DLBCL, not otherwise specified (NOS) or of HGBL, NOS. Other major changes are the conceptual merger of lymphomas arising in immune-privileged sites and the description of LBCL arising in the setting of immune dysregulation/deficiency. In addition, novel findings concerning underlying biological mechanisms in the pathogenesis of the different entities are provided.
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Affiliation(s)
- Katrin S Kurz
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
| | - Michaela Ott
- Department of Pathology, Marienhospital, 70199 Stuttgart, Germany
| | - Sabrina Kalmbach
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
| | - Sophia Steinlein
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
| | - Claudia Kalla
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
| | - Heike Horn
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
| | - German Ott
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
| | - Annette M Staiger
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, 70376 Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376 Stuttgart, Germany
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Wen KW, Wang L, Menke JR, Damania B. Cancers associated with human gammaherpesviruses. FEBS J 2022; 289:7631-7669. [PMID: 34536980 PMCID: PMC9019786 DOI: 10.1111/febs.16206] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 08/10/2021] [Accepted: 09/16/2021] [Indexed: 01/14/2023]
Abstract
Epstein-Barr virus (EBV; human herpesvirus 4; HHV-4) and Kaposi sarcoma-associated herpesvirus (KSHV; human herpesvirus 8; HHV-8) are human gammaherpesviruses that have oncogenic properties. EBV is a lymphocryptovirus, whereas HHV-8/KSHV is a rhadinovirus. As lymphotropic viruses, EBV and KSHV are associated with several lymphoproliferative diseases or plasmacytic/plasmablastic neoplasms. Interestingly, these viruses can also infect epithelial cells causing carcinomas and, in the case of KSHV, endothelial cells, causing sarcoma. EBV is associated with Burkitt lymphoma, classic Hodgkin lymphoma, nasopharyngeal carcinoma, plasmablastic lymphoma, lymphomatoid granulomatosis, leiomyosarcoma, and subsets of diffuse large B-cell lymphoma, post-transplant lymphoproliferative disorder, and gastric carcinoma. KSHV is implicated in Kaposi sarcoma, primary effusion lymphoma, multicentric Castleman disease, and KSHV-positive diffuse large B-cell lymphoma. Pathogenesis by these two herpesviruses is intrinsically linked to viral proteins expressed during the lytic and latent lifecycles. This comprehensive review intends to provide an overview of the EBV and KSHV viral cycles, viral proteins that contribute to oncogenesis, and the current understanding of the pathogenesis and clinicopathology of their related neoplastic entities.
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Affiliation(s)
- Kwun Wah Wen
- Department of Pathology and Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94158
| | - Linlin Wang
- Department of Laboratory Medicine, University of California, San Francisco, CA 94158
| | - Joshua R. Menke
- Department of Pathology, Stanford University, Palo Alto, CA 94304
| | - Blossom Damania
- Department of Microbiology & Immunology & Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC 27599
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Incidence of non-Hodgkin’s lymphoma among adults in Sardinia, Italy. PLoS One 2022; 17:e0260078. [PMID: 35108286 PMCID: PMC8809576 DOI: 10.1371/journal.pone.0260078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
The causes of the peculiar time trend in the incidence of non-Hodgkin’s lymphoma (NHL) in most parts of the world and of its geographic distribution are still unknown. We used the data base of 1974–2003 incident cases of hematological malignancies to explore the time trend of NHL incidence in the region of Sardinia, Italy, and we used Bayesian methods to plot the probability of NHL incidence by residential unit on the regional map. In 1974–2003, 4109 NHL cases were diagnosed among resident adults in Sardinia, with an incidence rate of 13.38 x 10−5 (95% CI 12.97–13.80). NHL incidence showed an upward trend along the study period with an average annual percent change (APC) of 4.94 (95% CI -5.39–16.4), which did not vary by gender or by age-group. Cancer registry data, covering part of the region starting from 1993, suggest that the increasing trend did not persist in the subsequent years. Areas with the highest probability of an excess incidence tended to cluster in the north-eastern part of the region and in two major urban centers, with the low incidence areas located in the south, confirming previous observations. Prevalence of viral infections, environmental and occupational exposures, or socio-economic deprivation would not explain the peculiar geographic distribution we observed. These findings provide convincing arguments for extending the coverage of routine cancer registration over the whole Sardinian population, while prompting further research on the genetic and environmental determinants of NHL in the risk areas.
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Zhou J, Nassiri M. Lymphoproliferative Neoplasms With Plasmablastic Morphology: An Overview and Diagnostic Approach. Arch Pathol Lab Med 2021; 146:407-414. [PMID: 34559873 DOI: 10.5858/arpa.2021-0117-ra] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2021] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Plasmablastic morphology can be seen in several uncommon lymphoproliferative neoplasms. Sometimes it is difficult to distinguish these neoplasms from each other. OBJECTIVE.— To review the current understanding of major lymphoproliferative neoplasms with plasmablastic morphology; summarize the clinical, morphologic, immunophenotypic, cytogenetic, and molecular characteristics of each disease entity; and highlight a practical approach for differential diagnosis. DATA SOURCES.— Peer-reviewed medical literature and the authors' personal experience. CONCLUSIONS.— Plasmablastic lymphoma; plasmablastic myeloma; primary effusion lymphoma; human herpesvirus 8-positive diffuse large B-cell lymphoma, not otherwise specified; and anaplastic lymphoma kinase (ALK)-positive large B-cell lymphoma are major lymphoproliferative neoplasms with plasmablastic morphology. These neoplasms share many common morphologic and immunophenotypic characteristics. Definitive diagnosis requires a thorough understanding of disease phenotype and diagnostic criteria of each category. Recognition of expression pattern of Epstein-Barr virus-encoded small RNA, human herpesvirus 8, and ALK in these neoplasms is critical for diagnosis in cases with typical presentation. Additional ancillary studies and clinical findings may help in difficult cases.
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Affiliation(s)
- Jiehao Zhou
- From the Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis
| | - Mehdi Nassiri
- From the Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis
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KSHV/HHV8-positive large B-cell lymphomas and associated diseases: a heterogeneous group of lymphoproliferative processes with significant clinicopathological overlap. Mod Pathol 2020; 33:18-28. [PMID: 31527708 DOI: 10.1038/s41379-019-0365-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 08/20/2019] [Accepted: 08/20/2019] [Indexed: 02/08/2023]
Abstract
In this review, we focus on the current understanding of the diagnosis of human herpesvirus 8 (HHV8)-associated lymphoproliferative disorders-a group of entities that range from hyperplastic proliferations to frank lymphomas. These diseases tend to occur in immunodeficient patients, but may occur in immunocompetent individuals as well. In recent years, we have learned of occasional cases with overlapping features among HHV8 entities, such as lesions intermediate between primary effusion lymphoma and HHV8-positive diffuse large B-cell lymphoma, not otherwise specified or cases sharing features of multicentric Castleman disease and germinotropic lymphoproliferative disorder. There is also a significant clinical overlap between these entities. It is important to have a better understanding of the biology of these lesions and to refine diagnostic criteria of these lesions, as the use of immunosuppressive agents to treat a variety of diseases, the expanded use of transplant as a therapeutic modality for a variety of cancers and organ failure patients, and the extended longevity of HIV-positive patients will likely result in an increased incidence of these lymphoproliferative processes in the future.
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Halec G, Waterboer T, Brenner N, Butt J, Hardy DW, D’Souza G, Wolinsky S, Macatangay BJ, Pawlita M, Detels R, Martínez-Maza O, Hussain SK. Serological Assessment of 18 Pathogens and Risk of AIDS-Associated Non-Hodgkin Lymphoma. J Acquir Immune Defic Syndr 2019; 80:e53-e63. [PMID: 30531297 PMCID: PMC6375787 DOI: 10.1097/qai.0000000000001916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND HIV infection is associated with increased susceptibility to common pathogens, which may trigger chronic antigenic stimulation and hyperactivation of B cells, events known to precede the development of AIDS-associated non-Hodgkin lymphoma (AIDS-NHL). METHODS To explore whether cumulative exposure to infectious agents contributes to AIDS-NHL risk, we tested sera from 199 AIDS-NHL patients (pre-NHL, average lead time 3.9 years) and 199 matched HIV-infected controls from the Multicenter AIDS Cohort Study, for anti-IgG responses to 18 pathogens using multiplex serology. Odds ratios (ORs) and 95% confidence intervals (CIs) were estimated using conditional logistic regression models. RESULTS We found no association between cumulative exposure to infectious agents and AIDS-NHL risk (OR 1.01, 95% CI: 0.91 to 1.12). However, seropositivity for trichodysplasia spinulosa polyomavirus (TSPyV), defined as presence of antibodies to TSPyV capsid protein VP1, was significantly associated with a 1.6-fold increase in AIDS-NHL risk (OR 1.62, 95% CI: 1.02 to 2.57). High Epstein-Barr virus (EBV) anti-VCA p18 antibody levels closer to the time of AIDS-NHL diagnosis (<4 years) were associated with a 2.6-fold increase in AIDS-NHL risk (OR 2.59, 95% CI: 1.17 to 5.74). In addition, high EBV anti-EBNA-1 and anti-ZEBRA antibody levels were associated with 2.1-fold (OR 0.47, 95% CI: 0.26 to 0.85) and 1.6-fold (OR 0.57, 95% CI: 0.35 to 0.93) decreased risk of AIDS-NHL, respectively. CONCLUSIONS Our results do not support the hypothesis that cumulative exposure to infectious agents contributes to AIDS-NHL development. However, the observed associations with respect to TSPyV seropositivity and EBV antigen antibody levels offer additional insights into the pathogenesis of AIDS-NHL.
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Affiliation(s)
- Gordana Halec
- University of California Los Angeles (UCLA) AIDS Institute and Department of Obstetrics and Gynecology, UCLA David Geffen School of Medicine, Los Angeles, California, USA
| | - Tim Waterboer
- Infections and Cancer Epidemiology, Research Program Infection, Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Nicole Brenner
- Infections and Cancer Epidemiology, Research Program Infection, Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Julia Butt
- Infections and Cancer Epidemiology, Research Program Infection, Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - David W. Hardy
- Clinical Investigations, Whitman-Walker Health, Washington, DC
| | - Gypsyamber D’Souza
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Steven Wolinsky
- Division of Infectious Diseases, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Bernard J. Macatangay
- Division of Infectious Diseases, Department of Medicine, University of Pittsburg School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Michael Pawlita
- Infections and Cancer Epidemiology, Research Program Infection, Inflammation and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Roger Detels
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
| | - Otoniel Martínez-Maza
- University of California Los Angeles (UCLA) AIDS Institute and Department of Obstetrics and Gynecology, UCLA David Geffen School of Medicine, Los Angeles, California, USA
| | - Shehnaz K. Hussain
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
- Samuel Oschin Comprehensive Cancer Institute and Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, California, USA
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HHV8-related lymphoid proliferations: a broad spectrum of lesions from reactive lymphoid hyperplasia to overt lymphoma. Mod Pathol 2017; 30:745-760. [PMID: 28084335 DOI: 10.1038/modpathol.2016.233] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 11/24/2016] [Accepted: 11/25/2016] [Indexed: 12/31/2022]
Abstract
Human herpesvirus 8 (HHV8)-associated lymphoid proliferations are uncommon and poorly characterized disorders mainly affecting immunosuppressed patients, especially with HIV infection. They encompass different diseases with overlapping features that complicate their classification. In addition, the role of HHV8 in reactive lymphoid hyperplasia is not well known. To analyze the clinicopathological spectrum of these lesions, we have reviewed 66 biopsies of 61 patients with HHV8 infection. All cases were also investigated for Epstein-Barr virus (EBV) and HIV infection. We identified 13 (20%) cases of HHV8-related reactive lymphoid hyperplasia, 2 (3%) HHV8 plasmablastic proliferations of the splenic red pulp, 28 (42%) multicentric Castleman disease, 6 (9%) germinotropic lymphoproliferative disorders, and 17 (26%) HHV8-related lymphomas. As expected, the pathologic subtype was predictive of overall survival (P<0.05). Forty-seven of our cases were HIV positive (77%). In addition to the classical presentation of the different entities, we identified novel and overlapping features. Reactive HHV8 proliferations were frequently associated with systemic symptoms but never progressed to overt HHV8-positive lymphoma. Two cases had a plasmablastic proliferation limited to spleen. Eight cases of multicentric Castleman disease had a previously unrecognized presentation shortly after the diagnosis of HIV infection, six cases had cavity effusions, and three showed plasmablast enriched proliferations. One germinotropic lymphoproliferative disorder was EBV negative and three occurred in HIV-positive patients, who had distinctive clinical and morphological features. Two of the HHV8-related lymphomas did not fulfill the criteria for previously recognized entities. All these findings expand the clinical and pathological spectrum of HHV8-related lymphoid proliferations, which is broader than current recognized.
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Foster WR, Bischin A, Dorer R, Aboulafia DM. Human Herpesvirus Type 8-associated Large B-cell Lymphoma: A Nonserous Extracavitary Variant of Primary Effusion Lymphoma in an HIV-infected Man: A Case Report and Review of the Literature. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2016; 16:311-21. [PMID: 27234438 DOI: 10.1016/j.clml.2016.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 03/25/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND Primary effusion lymphoma (PEL) is a rare non-Hodgkin lymphoma subtype primarily seen in human immunodeficiency virus (HIV)-infected individuals with low CD4(+) cell counts and elevated HIV viral loads. It has always been associated with human herpesvirus type 8 (HHV-8) and in 80% of cases has also been associated with Epstein-Barr virus (EBV). Less commonly, PEL has presented in patients with advanced age and other conditions associated with an altered immunity, including malignancy, liver cirrhosis, and immunosuppressive medications. It is a tumor of B-cell lineage; however, it shows a "null" phenotype, rarely expressing pan-B cell surface antigens. It will usually express CD45, CD30, CD38, CD138, and MUM1 and is characterized by lymphomatous effusions in body cavities but not lymphadenopathy. It is an aggressive lymphoma, with an average median survival of < 1 year. HHV-8-associated large B-cell lymphoma (HHV-8-LBL) is a second variant of PEL that is both solid and extracavitary. It has immunoblastic and/or anaplastic morphologic features and a distinct immunohistochemical staining pattern. It could also have a different clinical presentation than that of classic PEL. MATERIALS AND METHODS We describe the case of a 57-year-old HIV-infected man who presented with a slow-growing and asymptomatic abdominal mass. Examination of an excisional biopsy specimen showed malignant large cells with prominent cytoplasm that were positive for pan-B cell antigen CD20, HHV-8, and EBV and negative for CD138, CD10, BCL-6, CD3, and CD30. The Ki-67 labeling index was 90%. The diagnosis was stage IIIA HHV-8-LBL, and he was treated with 6 cycles of R-EPOCH (rituximab, etoposide, vincristine, doxorubicin, cyclophosphamide, and prednisone) infusion chemotherapy. At 12 months after treatment, he was in complete remission. We also performed a Medline and Embase search to better understand the clinical findings of our patient and the unique attributes of HHV-8-LBL. Focusing our search on English language studies, we identified 83 cases of HHV-8-LBL without an effusion component. We compared these 83 cases with 118 reported cases of classic PEL. RESULTS The median age of the patients with HHV-8-LBL was 41 years (range, 24-77), and 96% of the cases were associated with HIV. The median age of the patients with classic PEL was 41 years (range, 26-86), and 96% of the cases were associated with HIV. Of those with HHV-8-LBL, 31 of 61 (51%) had a pre-existing diagnosis of acquired immunodeficiency syndrome (AIDS) and 47 of 63 (75%) were coinfected with EBV. In contrast, 69 of 96 patients (72%) with classic PEL had a pre-existing AIDS diagnosis and 40 of 49 (82%) were coinfected with EBV. The mean CD4(+) count of the HHV-8-LBL patients was 256 cells/μL (range, 18-1126 cells/μL) compared with 139 cells/μL (range, 2-557 cells/μL) in the classic PEL patients. The median survival time for both groups was similar at 5.5 months (range, 25 days to ≥ 25 months) for patients with HHV-8-LBL and 4 months (range, 2 days to ≥ 113 months) for those with classic PEL. More patients with HHV-8-LBL were alive at the last follow-up point (59% vs. 18%). The percentage of patients achieving complete remission was 54% (30 of 56) and 36% (32 of 89) for HHV-8-LBL and classic PEL, respectively. CONCLUSION Our patient's high CD4(+) cell count, the lack of a pre-existing AIDS diagnosis, and the excellent response to chemotherapy highlights that HHV-8-LBL might have distinct clinical features and possibly a better response to chemotherapy than classic PEL. HHV-8-LBL should be included in the differential diagnosis of HIV patients with solid lesions. It is essential that patients' Centers for Disease Control and Prevention HIV clinical status and HIV viral load at the diagnosis of PEL and HHV-8-LBL be reported and that the reported clinical results include longer term follow-up data. Only then will a more complete clinical picture of this little-appreciated and little-understood PEL variant be defined.
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Affiliation(s)
| | - Alina Bischin
- Section of Hematology and Oncology, Virginia Mason Medical Center, Seattle, WA
| | - Russell Dorer
- Section of Hematology and Oncology, Virginia Mason Medical Center, Seattle, WA
| | - David M Aboulafia
- Section of Hematology and Oncology, Virginia Mason Medical Center, Seattle, WA; Division of Hematology, University of Washington, Seattle, WA.
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Yin CC, Jones D. Molecular approaches towards characterization, monitoring and targeting of viral-associated hematological malignancies. Expert Rev Mol Diagn 2014; 6:831-41. [PMID: 17140370 DOI: 10.1586/14737159.6.6.831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Viral-associated malignancies usually arise in the setting of altered immunity or with declines in immune function associated with aging. The main culprits are the lymphotropic herpesvirus, including Epstein-Barr virus (EBV) and human herpesvirus-8, which are the focus of this review. Chronic persistent infection and viral reactivation are the main risk factors for development of herpesvirus-associated malignancies and have provided the rationale for intensive monitoring of viral loads in some clinical contexts. Quantitative detection of EBV levels in the post-transplant period and following treatment of EBV-associated malignancies now have a proven role in outcome prediction. Both T-cell immunotherapy and humoral immunotherapies directed against latent viral antigens represent promising interventional approaches to treatment of viral-associated malignancies.
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Affiliation(s)
- C Cameron Yin
- The University of Texas MD Anderson Cancer Center, Department of Hematopathology, Houston, TX, 77030, USA.
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Gloghini A, Dolcetti R, Carbone A. Lymphomas occurring specifically in HIV-infected patients: from pathogenesis to pathology. Semin Cancer Biol 2013; 23:457-67. [PMID: 23999127 DOI: 10.1016/j.semcancer.2013.08.004] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 08/19/2013] [Accepted: 08/21/2013] [Indexed: 12/22/2022]
Abstract
Lymphomas that develop in HIV positive patients are predominantly aggressive B-cell malignancies. The most common HIV-associated lymphomas are Burkitt lymphoma (BL) and diffuse large B-cell lymphoma (DLBCL). Lymphomas that occur specifically in HIV positive patients include primary effusion lymphoma (PEL) and its solid variants, plasmablastic lymphoma of the oral cavity type and lymphoma associated with Kaposi sarcoma herpesvirus (KSHV)-related multicentric Castleman disease. These lymphomas, together with BL and immunoblastic lymphoma subtypes with plasmacytoid differentiation, carry Epstein-Barr virus (EBV) infection and display a phenotype related to plasma cells. Globally, EBV is identified in the neoplastic cells of approximately 40% of HIV-associated lymphomas, but the detection of EBV varies considerably with the site of presentation and the histological subtype. EBV infection occurs in 80-100% of primary central nervous system lymphomas and PELs, 80% of DLBCLs with immunoblastic-plasmacytoid features, and 30-50% of BL-plasmacytoid. KSHV is specifically associated with PEL, which usually occurs in a setting of profound immunosuppression. Current knowledge about HIV-associated lymphomas can be summarized as follows: (1) lymphomas specifically occurring in patients with HIV infection are closely linked to other viral diseases; (2) most of these lymphomas exhibit plasmablastic differentiation.
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Affiliation(s)
- Annunziata Gloghini
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy.
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12
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Dittmer DP, Richards KL, Damania B. Treatment of Kaposi sarcoma-associated herpesvirus-associated cancers. Front Microbiol 2012; 3:141. [PMID: 22529843 PMCID: PMC3328849 DOI: 10.3389/fmicb.2012.00141] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 03/25/2012] [Indexed: 11/13/2022] Open
Abstract
Kaposi sarcoma (KS) is the most frequent AIDS-defining cancer worldwide. KS-associated herpesvirus (KSHV) is the etiological agent of KS, and the virus is also associated with two lymphoproliferative diseases. Both KS and KSHV-associated lymphomas, are cancers of unique molecular composition. They represent a challenge for cancer treatment and an opportunity to identify new mechanisms of transformation. Here, we review the current clinical insights into KSHV-associated cancers and discuss scientific insights into the pathobiology of KS, primary effusion lymphoma, and multicentric Castleman's disease.
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Affiliation(s)
- Dirk P Dittmer
- Program in Global Oncology, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill Chapel Hill, NC, USA
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13
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Kaposi's Sarcoma-Associated Herpesvirus-Related Solid Lymphoma Involving the Heart and Brain. AIDS Res Treat 2011; 2011:729854. [PMID: 21541215 PMCID: PMC3085326 DOI: 10.1155/2011/729854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2010] [Accepted: 02/07/2011] [Indexed: 11/17/2022] Open
Abstract
Since its discovery
in 1994, Kaposi's sarcoma-associated
herpesvirus (KSHV) has been associated with
lymphoproliferative disorders, particularly in
patients infected with human immunodeficiency
virus (HIV). The disorders most strongly linked
to KSHV are multicentric Castleman's Disease
(MCD), primary effusion lymphoma, and diffuse
large B-cell lymphomas. We report an unusual
case of KSHV-associated lymphoma in an
HIV-infected patient manifesting with myocardial
and central nervous system involvement. We
discuss this case in the context of increasing
array of KSHV-associated lymphomas. In the
HIV-infected patient with a mass lesion, a
history of cutaneous Kaposi's sarcoma and
prolonged immunosuppression should alert
clinicians as to the possibility of
KSHV-associated lymphoproliferative disorders,
in order to establish a timely
diagnosis.
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Abstract
NF-κB is a pivotal transcription factor that controls cell survival and proliferation in diverse physiological processes. The activity of NF-κB is tightly controlled through its cytoplasmic sequestration by specific inhibitors, IκBs. Various cellular stimuli induce the activation of an IκB kinase, which phosphorylates IκBs and triggers their proteasomal degradation, causing nuclear translocation of activated NF-κB. Under normal conditions, the activation of NF-κB occurs transiently, thus ensuring rapid but temporary induction of target genes. Deregulated NF-κB activation contributes to the development of various diseases, including cancers and immunological disorders. Accumulated studies demonstrate that the NF-κB signaling pathway is a target of several human oncogenic viruses, including the human T cell leukemia virus type 1, the Kaposi sarcoma-associated herpesvirus, and the Epstein-Bar virus. These viruses encode specific oncoproteins that target different signaling components of the NF-κB pathway, leading to persistent activation of NF-κB. This chapter will discuss the molecular mechanisms by which NF-κB is activated by the viral oncoproteins.
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Affiliation(s)
- Shao-Cong Sun
- Department of Immunology, The University of Texas MD Anderson Cancer Center and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030
| | - Ethel Cesarman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, 1300 York Ave, New York, NY 10065
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Immunologic and virologic predictors of AIDS-related non-hodgkin lymphoma in the highly active antiretroviral therapy era. J Acquir Immune Defic Syndr 2010; 54:78-84. [PMID: 20418723 DOI: 10.1097/01.qai.0000371677.48743.8d] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
HIV-infected persons treated with highly active antiretroviral therapy (HAART) continue to have elevated risk for non-Hodgkin lymphoma (NHL). We conducted a retrospective cohort study of NHL among patients at an urban HIV clinic (N = 3025). Proportional hazards models identified immunologic and virologic predictors of NHL. Sixty-five NHLs arose during 1989 to 2006. NHL incidence declined over time. Nonetheless, 51 NHLs (78%) occurred within the HAART era (1996-2006). NHL risk increased with declining CD4 count (P trend < 0.0001) and increasing HIV viral load (P trend = 0.005). In a multivariable model, NHL risk was independently associated with both current CD4 count (hazard ratios 7.7 and 3.8, respectively, for CD4 counts 0-99 and 100-249 vs. 250+ cells/mm(3); P trend < 0.0001) and prior time spent with a viral load above 5.00 log(10) copies/mL (hazard ratios of 3.4, 2.6, and 6.8, respectively, for 0.1-0.4, 0.5-1.4, and 1.5+ yr vs. 0 yr; P trend = 0.004). Although serum globulin levels were elevated compared with the general population, NHL risk was unrelated to this B-cell activation marker (P = 0.39). Among HIV-infected individuals in the HAART era, NHLs are linked to immunosuppression and extended periods of uncontrolled HIV viremia. The association with high-level viremia could reflect detrimental effects on immune function related to incompletely effective HAART or direct effects on B cells.
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Bohlius J, Schmidlin K, Costagliola D, Fätkenheuer G, May M, Caro-Murillo AM, Mocroft A, Bonnet F, Clifford G, Karafoulidou A, Miro JM, Lundgren J, Chene G, Egger M. Incidence and risk factors of HIV-related non-Hodgkin's lymphoma in the era of combination antiretroviral therapy: a European multicohort study. Antivir Ther 2010; 14:1065-74. [PMID: 20032536 DOI: 10.3851/imp1462] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Incidence and risk factors of HIV-associated non-Hodgkin's lymphoma (NHL) are not well defined in the era of combination antiretroviral therapy (cART). METHODS A total of 56,305 adult HIV type-1 (HIV-1)-infected patients who started cART in 1 of 22 prospective studies in Europe were included. Weibull random effects models were used to estimate hazard ratios (HRs) for developing systemic NHL and included CD4(+) T-cell counts and viral load as time-updated variables. RESULTS During the 212,042 person-years of follow-up, 521 patients were diagnosed with systemic NHL and 62 with primary brain lymphoma (PBL). The incidence rate of systemic NHL was 463 per 100,000 person-years not on cART and 205 per 100,000 person-years in treated patients for a rate ratio of 0.44 (95% confidence interval [CI] 0.37-0.53). The corresponding incidence rates of PBL were 57 and 24 per 100,000 person-years (rate ratio 0.43, 95% CI 0.25-0.73). Suppression of HIV-1 replication on cART (HR 0.60, 95% CI 0.44-0.81, comparing < or =500 with 10,000-99,999 copies/ml) and increases in CD4(+) T-cell counts (HR 0.30, 0.22-0.42, comparing > or =350 with 100-199 cells/microl) were protective; a history of Kaposi's sarcoma (HR 1.70, 1.08-2.68, compared to no history of AIDS), transmission through sex between men (HR 1.57, 1.19-2.08, compared with heterosexual transmission) and older age (HR 3.71, 2.37-5.80, comparing > or =50 with 16-29 years) were risk factors for systemic NHL. CONCLUSIONS The incidence rates of both systemic NHL and PBL were substantially reduced in patients on cART. Timely initiation of therapy is key to the prevention of NHL in the era of cART.
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Characteristics of non-Hodgkin lymphoma arising in HIV-infected patients with suppressed HIV replication. AIDS 2009; 23:2301-8. [PMID: 19752717 DOI: 10.1097/qad.0b013e328330f62d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Despite effective treatment of HIV infection, some patients still develop non-Hodgkin lymphoma (NHL). We analysed patients with HIV-associated NHL and undetectable plasma HIV-RNA, according to the duration of HIV suppression. METHODS Out of 388 patients included in a prospective cohort of HIV-associated NHL from 1996 to 2008, 128 (33%) had a plasma HIV-RNA below 500 copies/ml and were included in the study. Patients with long-term HIV suppression (>18 months) were compared with patients with recent HIV suppression (< or = 18 months). RESULTS All patients but three were treated with combination antiretroviral therapy, with a median duration of 2.2 years. The median duration of HIV suppression was 10.1 months. Most cases (65%) occurred within 18 months following HIV suppression. In the more than 18 months group, patients developed NHL at a higher CD4 cell count than patients with 18 months or less of HIV suppression (359 versus 270 cells/microl, P = 0.02). None of the NHL characteristics were different between the two groups. Outcome was similar in the two groups (complete remission, 64 versus 72.5%; P = 0.35 and 3-year survival, 46 versus 56%; P = 0.08). In addition, 52% of the tumours were Epstein-Barr virus or human herpesvirus 8 associated, without any difference in the proportion of virus-associated tumours according to the duration of HIV suppression. CONCLUSION In patients with undetectable HIV-RNA, NHL occurred mainly within the first 18 months following HIV suppression. In patients developing NHL after long-term HIV suppression, the level of CD4 cell count was higher, but the association with Epstein-Barr virus or human herpesvirus 8 and the prognosis were similar to that observed in patients with recent HIV suppression.
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Simonelli C, Tedeschi R, Gloghini A, Talamini R, Bortolin MT, Berretta M, Spina M, Morassut S, Vaccher E, De Paoli P, Carbone A, Tirelli U. Plasma HHV-8 viral load in HHV-8-related lymphoproliferative disorders associated with HIV infection. J Med Virol 2009; 81:888-96. [PMID: 19319955 DOI: 10.1002/jmv.21349] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This is a mono-institutional analysis of the clinical features, immunological and virological findings, and prognostic factors of patients with HIV infection and HHV-8-lymphoproliferative disorders. Patients with Multicentric Castleman Disease and HHV-8-related lymphoma diagnosed and treated from April 1987 to June 2004 were included in the study. HHV-8 and HIV plasma viral load, CD4+ count, hematologic parameters, and general wellbeing (performance status) were assessed at the onset of the diseases and analyzed in order to identify possible prognostic factors. Nine patients with Multicentric Castleman disease, and 16 with HHV-8-related lymphomas (13 primary effusion lymphomas and 3 solid lymphomas), were diagnosed and treated out of 327 HIV-related non-Hodgkin's lymphomas. Four patients with Multicentric Castleman disease received only antiretroviral drugs; 5 HAART plus oral etoposide. Nine patients with primary effusion lymphoma were treated with a CHOP-like regimen (Cyclophosphamide, Prednisone anthracyclines, Vinca alkaloids, Bleomycin, Etoposide) and HAART; 1 with etoposide and HAART, 1 with HAART alone. The patients with solid lymphoma underwent CHOP-like chemotherapy. Patients with Multicentric Castleman disease showed lower median values of HHV-8 viral load and longer overall survival compared with HHV-8-related lymphomas. Patients with viral load of HHV-8, >40,000 cp/ml had a significant shorter overall survival. In the univariate analysis, HHV-8-related lymphoma, HHV-8 viral load >40,000 cp/ml and performance status >2 were associated with an increased risk of death. Multivariate analysis confirmed the diagnosis of lymphoma as an independent predictor of shorter survival.
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Affiliation(s)
- C Simonelli
- Division of Medical Oncology A, National Cancer Institute, Aviano, Italy.
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19
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Hjalgrim H, Engels EA. Infectious aetiology of Hodgkin and non-Hodgkin lymphomas: a review of the epidemiological evidence. J Intern Med 2008; 264:537-48. [PMID: 19017178 DOI: 10.1111/j.1365-2796.2008.02031.x] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Lymphomas constitute a heterogeneous group of malignant disorders with different clinical behaviours, pathological features and epidemiological characteristics. For some lymphoma subtypes, epidemiological evidence has long pointed to infectious aetiologies. A subset of Hodgkin lymphoma is strongly linked to Epstein-Barr virus (EBV) infection. In addition, infectious agents can directly infect and transform lymphocytes (e.g. EBV, human herpesvirus 8), induce immunosuppression (human immunodeficiency virus), or cause chronic immune stimulation (hepatitis C virus, Helicobacter pylori), all of which may play a role in the development of various non-Hodgkin lymphoma subtypes. Here, we review the epidemiological evidence linking infections with malignant lymphoma.
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Affiliation(s)
- H Hjalgrim
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.
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20
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Abstract
Among the most common HIV-associated lymphomas are Burkitt lymphoma (BL) and diffuse large B-cell lymphoma (DLBCL) with immunoblastic-plasmacytoid differentiation (also involving the central nervous system). Lymphomas occurring specifically in HIV-positive patients include primary effusion lymphoma (PEL) and its solid variants, plasmablastic lymphoma of the oral cavity type and large B-cell lymphoma arising in Kaposi sarcoma herpesvirus (KSHV)-associated multicentric Castleman disease. These lymphomas together with BL and DLBCL with immunoblastic-plasmacytoid differentiation frequently carry EBV infection and display a phenotype related to plasma cells. EBV infection occurs at different rates in different lymphoma types, whereas KSHV is specifically associated with PEL, which usually occurs in the setting of profound immunosuppression. The current knowledge about HIV-associated lymphomas can be summarized in the following key points: (1) lymphomas specifically occurring in patients with HIV infection are closely linked to other viral diseases; (2) AIDS lymphomas fall in a spectrum of B-cell differentiation where those associated with EBV or KSHV commonly exhibit plasmablastic differentiation; and (3) prognosis for patients with lymphomas and concomitant HIV infection could be improved using better combined chemotherapy protocols incorporating anticancer treatments and antiretroviral drugs.
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21
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Schwartz RA, Micali G, Nasca MR, Scuderi L. Kaposi sarcoma: a continuing conundrum. J Am Acad Dermatol 2008; 59:179-206; quiz 207-8. [PMID: 18638627 DOI: 10.1016/j.jaad.2008.05.001] [Citation(s) in RCA: 163] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Revised: 04/20/2008] [Accepted: 05/05/2008] [Indexed: 12/11/2022]
Abstract
UNLABELLED Kaposi sarcoma (KS) remains a challenge. Its classic or Mediterranean form tends to be benign. In transplant recipients it may be less so. As part of the AIDS pandemic, of which it was an original defining component, it may be life-threatening. It is due to human herpesvirus-8, which is necessary but not sufficient to produce the disease. KS has a low prevalence in the general population of the United States and United Kingdom, with an intermediate rate in Italy and Greece, and a high one in parts of Africa. In Italy, hot spots include its southern regions, the Po River Valley, and Sardinia, possibly related to a high density of blood-sucking insects. An important challenge is to treat KS patients without immunocompromising them. The potential of effective anti-herpes virus therapy and the use of sirolimus in transplantation recipients have added new opportunities for KS prevention. LEARNING OBJECTIVES At the conclusion of this learning activity, participants should be able to provide the most recent information about Kaposi sarcoma in the context in which it occurs. Its classic or Mediterranean form, its pattern in transplant recipients and others iatrogenically immunosuppressed, and its occurrence as a potentially life-threatening part of the AIDS pandemic will be stressed. Its etiology and transmission will be discussed in detail to facilitate understanding of Kaposi sarcoma and of human herpesvirus-8 infection in the general population of the United States and United Kingdom, in Italy and Greece, and in certain parts of Africa. Its therapy, including the concept of doing it without immunocompromising the patient, will be stressed. New opportunities for Kaposi sarcoma prevention will also be discussed.
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Affiliation(s)
- Robert A Schwartz
- Department of Dermatology, New Jersey Medical School, Newark, New Jersey 07103-2714, USA.
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22
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Mylona E, Baraboutis IG, Georgiou O, Rondogianni D, Lekakis LJ, Papastamopoulo V, Apostolidis I, Skoutelis AT. Solid variant of primary effusion lymphoma in successfully treated HIV infection: a case report. Int J STD AIDS 2008; 19:570-2. [DOI: 10.1258/ijsa.2007.007285] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Primary effusion lymphoma (PEL) is a unique form of non-Hodgkin lymphoma, mainly met in severely immunocompromised, HIV-positive patients. PEL is aetiologically related to human herpes virus-8 (HHV-8) and it usually presents as a lymphomatous body cavity effusion in the absence of a solid tumour mass. Recently, cases of HIV-positive patients with HHV-8-positive solid tissue lymphomas, not associated with an effusion, have been reported (solid variant of PEL). The prognosis of PEL is reported to be poor. We report a case of an HIV-positive patient with a typical solid variant of PEL without effusion. Interestingly, his disease developed while being on stable antiretroviral therapy (ART) with high CD4 counts. He had a relatively long survival with chemotherapy and ART.
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Affiliation(s)
- E Mylona
- Fifth Department of Internal Medicine, Evaggelismos Hospital, Athens, Greece
| | - I G Baraboutis
- Department of Infectious Diseases, Evaggelismos Hospital, Athens, Greece
| | - O Georgiou
- Department of Infectious Diseases, Evaggelismos Hospital, Athens, Greece
| | - D Rondogianni
- Department of Pathology, Evaggelismos Hospital, Athens, Greece
| | - L J Lekakis
- Department of Hematology, Evaggelismos Hospital, Athens, Greece
| | - V Papastamopoulo
- Fifth Department of Internal Medicine, Evaggelismos Hospital, Athens, Greece
- Department of Infectious Diseases, Evaggelismos Hospital, Athens, Greece
| | - I Apostolidis
- Department of Hematology, Oncology and Blood and Marrow Transplantation, University of Kentucky. Lexington, KY, USA
| | - A T Skoutelis
- Fifth Department of Internal Medicine, Evaggelismos Hospital, Athens, Greece
- Department of Infectious Diseases, Evaggelismos Hospital, Athens, Greece
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23
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Du MQ, Bacon CM, Isaacson PG. Kaposi sarcoma-associated herpesvirus/human herpesvirus 8 and lymphoproliferative disorders. J Clin Pathol 2007; 60:1350-7. [PMID: 18042691 PMCID: PMC2095558 DOI: 10.1136/jcp.2007.047969] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2007] [Indexed: 12/29/2022]
Abstract
Kaposi sarcoma-associated herpesvirus (KSHV), also known as human herpesvirus 8 (HHV8), is a recent addition to the list of human viruses that are directly associated with lymphoproliferative disorders. KSHV was first shown to be involved in multicentric Castleman disease and primary effusion lymphoma (PEL). Subsequently, the virus was identified in solid lymphomas, often of extranodal sites, with morphological and immunophenotypic characteristics similar to those of PEL, and in other lymphoproliferative disorders with heterogeneous clinicopathological presentations. The recent advances in our understanding of the histology, immunophenotype and pathogenesis of these KSHV-associated lymphoproliferative disorders are reviewed.
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Affiliation(s)
- M-Q Du
- Department of Pathology, University of Cambridge, Cambridge, UK.
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24
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Abstract
This review looks at the current state of knowledge on primary effusion lymphoma (PEL) and other Kaposi sarcoma herpesvirus (KSHV)/human herpesvirus 8 (HHV8)-associated lymphomas. In 1995, KSHV DNA sequences were identified within a distinct subgroup of acquired immunodeficiency syndrome-related non-Hodgkin lymphomas localized in body cavities and presenting as pleural, peritoneal and pericardial lymphomatous effusions. Subsequently, the spectrum of KSHV/HHV8-associated lymphomas has been expanded by the identification of cases of extracavitary solid lymphomas without serous effusions. Despite the diversification in the clinical presentation of KSHV/HHV8-associated lymphomas, the majority of the cases reported demonstrated similar morphology, immunophenotype and KSHV/HHV8 viral status. KSHV/HHV8 infection is also in multicentric Castleman disease-associated plasmablastic lymphoma. The exact oncogenic mechanisms of KSHV/HHV8 are not clearly defined. The prognosis for KSHV/HHV8-associated lymphomas is poor. Novel approaches for therapy, outside traditional chemotherapy with CHOP (cyclophosphamide, doxorubicin, prednisone, vincristine), have been suggested. These include the addition of antiviral therapy as well as inhibition of specific cellular targets.
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Affiliation(s)
- Antonino Carbone
- Department of Pathology, Istituto Nazionale Tumori, Milan, Italy.
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25
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Biggar RJ, Chaturvedi AK, Goedert JJ, Engels EA. AIDS-related cancer and severity of immunosuppression in persons with AIDS. J Natl Cancer Inst 2007; 99:962-72. [PMID: 17565153 DOI: 10.1093/jnci/djm010] [Citation(s) in RCA: 255] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The incidence of Kaposi sarcoma, non-Hodgkin lymphoma, and cervical cancer has been declining among persons with AIDS. We investigated the association between cancer risk and CD4 cell count among such persons. METHODS Data from US AIDS registries were linked to local cancer registry data. Cancer incidence per 100,000 person-years was determined for the 4-27 months from the onset of AIDS from January 1, 1990, through December 31, 1995--before highly active antiretroviral therapy (HAART) became available--and from January 1, 1996, through December 31, 2002. The relationships between CD4 count at AIDS onset and cancer incidence were assessed by proportional hazards models. RESULTS Among 325,516 adults with AIDS, the incidence of Kaposi sarcoma was lower in 1996-2002 (334.6 cases per 100,000 person-years) than in 1990-1995 (1838.9 cases per 100,000 person-years), and the incidence of non-Hodgkin lymphoma followed a similar pattern (i.e., 390.1 cases per 100,000 person-years in 1996-2002 and 1066.2 cases per 100,000 person-years in 1990-1995). In 1996-2002, for each decline in CD4 cell count of 50 cells per microliter of blood, increased risks were found for Kaposi sarcoma (hazard ratio [HR] = 1.40, 95% confidence interval [CI] = 1.33 to 1.50), for central nervous system non-Hodgkin lymphoma subtypes (HR = 1.85, 95% CI = 1.58 to 2.16), and for non-central nervous system diffuse large B-cell lymphoma (HR = 1.12, 95% CI = 1.04 to 1.20) but not for non-central nervous system Burkitt lymphoma (HR = 0.93, 95% CI = 0.81 to 1.06). Cervical cancer incidence was higher in 1996-2002 (86.5 per 100,000 person-years) than in 1990-1995 (64.2 per 100,000 person-years), although not statistically significantly so (relative risk [RR] = 1.41, 95% CI = 0.81 to 2.46). After adjustment for age, race, and sex or mode of HIV exposure, the risks for Kaposi sarcoma (RR = 0.22, 95% CI = 0.20 to 0.24) and for non-Hodgkin lymphoma (RR = 0.40, 95% CI = 0.36 to 0.44) were lower in the period of 1996-2002 than in 1990-1995. Similar relationships of these cancers to CD4 count were observed for 1990-1995. CONCLUSIONS Both before and after HAART was available, CD4 count was strongly associated with risks for Kaposi sarcoma and non-Hodgkin lymphoma but not for cervical cancer and Burkitt lymphoma. The decreasing incidences of most AIDS-associated cancers in persons with AIDS during the 1990s are consistent with improving CD4 counts after HAART introduction in 1996.
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Affiliation(s)
- Robert J Biggar
- Viral Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 6120 Executive Blvd, Room EPS 8014, Bethesda, MD 20852, USA.
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26
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Abstract
Among exposures presently viewed as possible etiologic factors in non-Hodgkin lymphoma (NHL), infections are close to being regarded as established causes. Infectious agents causing NHL can be classified, according to mechanism, into three broad groups. First, some viruses can directly transform lymphocytes. Lymphocyte-transforming viruses include Epstein Barr virus (linked to Burkitt's lymphoma, NHLs in immunosuppressed individuals, and extranodal natural killer/T-cell NHL), human herpesvirus 8 (primary effusion lymphoma), and human T lymphotropic virus type I (adult T-cell leukemia/lymphoma). Second, human immunodeficiency virus is unique in causing profound depletion of CD4+ T lymphocytes, leading to acquired immunodeficiency syndrome and an associated high risk for some NHL subtypes. Third, recent evidence suggests that some infections increase NHL risk through chronic immune stimulation. These infections include hepatitis C virus as well as certain bacteria that cause chronic site-specific inflammation and seem to increase risk for localized mucosa-associated lymphoid tissue NHLs. Establishing that an infectious agent causes NHL depends on showing that the agent is present in persons with NHL as well as laboratory experiments elucidating the mechanisms involved. Only epidemiologic studies can provide evidence that infection is actually a risk factor by showing that infection is more frequent in NHL cases than in controls. Given the range of mechanisms by which infections could plausibly cause NHL and our growing molecular understanding of this malignancy, this field of research deserves continued attention.
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Affiliation(s)
- Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, 6120 Executive Boulevard, EPS 7076, Rockville, MD 20852, USA.
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27
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Engels EA, Mbulaiteye SM, Othieno E, Gomez M, Mathew S, Cesarman E, Knowles DM, Chadburn A. Kaposi sarcoma-associated herpesvirus in non-Hodgkin lymphoma and reactive lymphadenopathy in Uganda. Hum Pathol 2007; 38:308-14. [PMID: 17097130 DOI: 10.1016/j.humpath.2006.08.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Revised: 08/07/2006] [Accepted: 08/14/2006] [Indexed: 11/16/2022]
Abstract
Kaposi sarcoma-associated herpesvirus (KSHV) causes Kaposi sarcoma and is also associated with primary effusion lymphoma, a subset of diffuse large B-cell lymphomas, and multicentric Castleman disease. Because KSHV infection is endemic in sub-Saharan Africa, we sought to identify cases of KSHV-positive non-Hodgkin lymphomas (NHLs) and reactive lymphadenopathy in this region. One hundred forty-four cases (80 NHLs, 64 reactive lymph nodes) from the major pathology laboratory in Uganda were reviewed. One NHL was KSHV-positive, as indicated by staining for the viral latent nuclear antigen. This NHL was a diffuse large B-cell lymphoma in a 5-year-old boy. The tumor was also Epstein-Barr virus-positive. In addition, 2 reactive lymph nodes, both classified histologically as follicular involution, stained KSHV latent nuclear antigen-positive and thus most likely represent multicentric Castleman disease. In all 3 KSHV-positive cases, a minority of cells expressed KSHV viral interleukin 6, a biologically active cytokine homolog. In conclusion, we show that KSHV is rarely associated with lymphoproliferative disorders in sub-Saharan Africa. We describe the first case of a KSHV-positive NHL from this region; this case is also the first reported pediatric lymphoma associated with KSHV infection.
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MESH Headings
- Antigens, Viral/analysis
- Child, Preschool
- Epstein-Barr Virus Infections/pathology
- Epstein-Barr Virus Infections/virology
- Herpesvirus 4, Human/genetics
- Herpesvirus 8, Human/metabolism
- Humans
- Immunohistochemistry
- In Situ Hybridization
- Lymphatic Diseases/pathology
- Lymphoma, B-Cell/pathology
- Lymphoma, B-Cell/virology
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoma, Large B-Cell, Diffuse/virology
- Lymphoma, Non-Hodgkin/pathology
- Lymphoma, Non-Hodgkin/virology
- Male
- Nuclear Proteins/analysis
- Sarcoma, Kaposi/pathology
- Sarcoma, Kaposi/virology
- Uganda
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Affiliation(s)
- Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Rockville, MD 20892, USA.
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Carbone A, Gloghini A. HHV-8-associated lymphoma: state-of-the-art review. Acta Haematol 2006; 117:129-31. [PMID: 17135725 DOI: 10.1159/000097459] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Accepted: 06/09/2006] [Indexed: 11/19/2022]
Abstract
During the first decade after the discovery of primary effusion lymphoma (PEL), sporadic and serial reports suggested that Kaposi-sarcoma-associated-herpesvirus/human-herpesvirus-8 (KSHV/HHV-8)-associated lymphomas in their liquid and solid presentation are clinically distinct, representing part of the spectrum of PEL. In HIV-seropositive patients with serous effusions, these solid lymphomas were reported before the development of an effusion lymphoma and following resolution of PEL. More recently, solid lymphomas not associated with lymphomatous effusion have been found in HIV-seropositive and HIV-seronegative patients. Despite the diversification in the clinical presentation of KSHV/HHV-8-associated lymphomas, most cases demonstrated a similar morphology, immunophenotype and KSHV/HHV-8 viral status.
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Affiliation(s)
- Antonino Carbone
- Department of Pathology, Istituto Nazionale per lo Studio e la Cura dei Tumori, Milano, Italy.
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29
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Cesarman E, Mesri EA. Kaposi sarcoma-associated herpesvirus and other viruses in human lymphomagenesis. Curr Top Microbiol Immunol 2006; 312:263-87. [PMID: 17089801 DOI: 10.1007/978-3-540-34344-8_10] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Kaposi sarcoma-associated herpesvirus (KSHV), also called human herpesvirus 8 (HHV-8), is associated with a specific subset of lymphoproliferative disorders. These include two main categories. The first is primary effusion lymphomas and related solid variants. The second is multicentric Castleman disease, from which KSHV-positive plasmablastic lymphomas can arise. KSHV contributes to lymphomagenesis by subverting the host cell molecular signaling machinery to deregulate cell growth and survival. KSHV expresses a selected set of genes in the lymphoma cells, encoding viral proteins that play important roles in KSHV lymphomagenesis. Deregulation of the NF-kappaB pathway is an important strategy used by KSHV to promote lymphoma cell survival, and the viral protein vFLIP is essential for this process. Two other viruses that are well documented to be causally associated with lymphoid neoplasia in humans are Epstein-Barr virus (EBV/HHV-4) and human T-cell lymphotropic virus (HTLV-1). Both of these are similar to KSHV in their use of viral proteins to promote cell survival by deregulating the NF-kappaB pathway. Here we review the basic information and recent developments that have contributed to our knowledge of lymphomas caused by KSHV and other viruses. The understanding of the mechanisms of viral lymphomagenesis should lead to the identification of novel therapeutic targets and to the development of rationally designed therapies.
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Affiliation(s)
- E Cesarman
- Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY 10021, USA.
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Epeldegui M, Widney DP, Martínez-Maza O. Pathogenesis of AIDS lymphoma: role of oncogenic viruses and B cell activation-associated molecular lesions. Curr Opin Oncol 2006; 18:444-8. [PMID: 16894291 DOI: 10.1097/01.cco.0000239882.23839.e5] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
PURPOSE OF REVIEW We discuss recently published studies that elucidate the pathogenesis of AIDS-associated lymphoma. RECENT FINDINGS Several recent reports have provided valuable new information on the role of gamma-herpesviruses in the pathogenesis of AIDS-associated lymphoma. In addition to this, significant new information has become available on how B cell activation-associated DNA-modifying events, involving activation-induced cytidine deaminase and DNA polymerase-eta, contribute to the molecular lesions that result in AIDS-associated lymphoma. In particular, new evidence that oncogenic viruses can directly induce activation-induced cytidine deaminase expression and oncogene mutation in human B cells is of central relevance to better understanding the pathogenesis of AIDS-associated lymphoma. SUMMARY New information provides insights into the contributions of immune dysfunction and oncogenic virus infection to pathogenesis of AIDS-associated lymphoma, and may lead to new potential targets for therapeutic intervention in these cancers.
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Affiliation(s)
- Marta Epeldegui
- Department of Microbiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90095-1740, USA
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31
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Affiliation(s)
- Ethel Cesarman
- Department of Pathology and Laboratory Medicine, Division of Hematology-Oncology, Department of Medicine, Weill Medical College of Cornell University and The New York Presbyterian Hospital, New York, NY, USA
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32
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Campo E, Chott A, Kinney MC, Leoncini L, Meijer CJLM, Papadimitriou CS, Piris MA, Stein H, Swerdlow SH. Update on extranodal lymphomas. Conclusions of the Workshop held by the EAHP and the SH in Thessaloniki, Greece. Histopathology 2006; 48:481-504. [PMID: 16623775 PMCID: PMC1448691 DOI: 10.1111/j.1365-2559.2006.02369.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Classification and proper treatment of extranodal lymphoma is hindered by the diversity of lymphoma types and the relative rarity of many of these tumour types. In order to review controversial issues in extranodal lymphoma diagnosis, a joint Workshop of the European Haematopathology Association (EAHP) and the Society for Hematopathology (SH) was held, where 99 selected cases were reviewed and discussed. This Workshop summary is focused on the most controversial aspect of cutaneous B-cell lymphoma, other extranodal B-cell lymphomas, plasmablastic lymphoma and anaplastic large-cell lymphoma in extranodal sites, and makes practical recommendations about diagnosis and therapeutic approaches.
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Affiliation(s)
- E Campo
- Department of Pathology, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
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Abstract
Abstract
Not long after the recognition of HIV as the causative agent of AIDS, it was evident that individuals infected with HIV developed lymphoma at a greater rate than the population at large. Approximately two thirds of AIDS-related lymphoma (ARL) cases are categorized as diffuse large B-cell type, with Burkitt lymphomas comprising 25% and other histologies a much smaller proportion. Typically, these individuals have presented with advanced extranodal disease and CD4+ lymphocyte counts of less than 200/mm3. Recent clinical trials have demonstrated a better outcome with chemotherapy for ARL since the introduction of combination antiretroviral treatment, termed highly active antiretroviral therapy (HAART). For patients with relapses, solid evidence points to the safety and utility of hematopoietic-cell transplantation as a salvage modality. Coinfection with other viruses such as Epstein-Barr virus and Kaposi sarcoma-associated herpesvirus have led to the genesis of previously rare or unrecognized lymphoma subtypes such as plasmablastic and primary effusion lymphomas. The immunosuppressive impact of treatment for patients with ARL receiving chemotherapy with HAART appears transient and opportunistic infections have become less problematic than prior to HAART. Significant progress has been made in the understanding and management of ARL but outcomes still remain inferior compared to those achieved in HIV- individuals.
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Affiliation(s)
- Willis H Navarro
- Division of Hematology/Oncology, University of California, San Francisco, 400 Parnassus Ave, Rm A502, San Francisco, CA 94143, USA.
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Lazzi S, Bellan C, Amato T, Palummo N, Cardone C, D'Amuri A, De Luca F, Beyanga M, Facchetti F, Tosi P, Leoncini L. Kaposi's sarcoma–associated herpesvirus/human herpesvirus 8 infection in reactive lymphoid tissues: a model for KSHV/HHV-8–related lymphomas? Hum Pathol 2006; 37:23-31. [PMID: 16360412 DOI: 10.1016/j.humpath.2005.08.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2005] [Accepted: 08/25/2005] [Indexed: 11/29/2022]
Abstract
We set out to analyze the presence of Kaposi's sarcoma-associated herpesvirus (KSHV)/human herpesvirus 8 (HHV-8) in different neoplasms occurring in East Africa, a region characterized by a high KSHV/HHV-8 seroprevalence rate and endemic Kaposi's sarcoma (KS). Our results suggest that, in endemic regions of Africa, KSHV/HHV-8 is predominantly associated with KS, independently of HIV status. During the course of this study, other important information came to light. We found the presence of KSHV/HHV-8 in 2 cases of lymph nodes partially involved by Burkitt's lymphoma and KS and in 1 case of multicentric Castleman disease. Our immunophenotypic and molecular data seem to suggest 2 different mechanisms of viral infection are at work in lymphoid cells. On one hand, when B cells show a latent phase infection with KSHV/HHV-8, after the germinal center reaction, naive B cells become resting memory B cells, similarly to Epstein-Barr virus-infected B cells. On the other hand, when lytic genes such as vIL6 are expressed in naive B cells, they may be driven to differentiate into plasmablasts without undergoing germinal center reaction. Interestingly, among KSHV/HHV-8-positive cases, in those in which there was also lymphoma, the neoplastic cells were negative for KSHV/HHV-8. This further confirms that KSHV/HHV-8 is involved in the neoplastic transformation of only certain types of lymphoma, probably in relation to their precursor infected cell. In conclusion, the maturation stage of KSHV/HHV-8-positive B cells as well as the type of viral infection may well determine the morphological, phenotypic, and clinical characteristics of KSHV/HHV-8-associated lymphomas.
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MESH Headings
- Adult
- Antigens, Viral
- B-Lymphocytes/pathology
- B-Lymphocytes/virology
- Burkitt Lymphoma/pathology
- Burkitt Lymphoma/virology
- Castleman Disease/pathology
- Castleman Disease/virology
- Cell Transformation, Neoplastic
- Child
- DNA, Viral/analysis
- Female
- Germinal Center/pathology
- Germinal Center/virology
- HIV/genetics
- HIV/isolation & purification
- Herpesvirus 4, Human/genetics
- Herpesvirus 4, Human/isolation & purification
- Herpesvirus 8, Human/genetics
- Herpesvirus 8, Human/immunology
- Herpesvirus 8, Human/isolation & purification
- Humans
- Lymphoma/pathology
- Lymphoma/virology
- Male
- Middle Aged
- Nuclear Proteins
- RNA, Viral/analysis
- Retrospective Studies
- Sarcoma, Kaposi/pathology
- Sarcoma, Kaposi/virology
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Affiliation(s)
- Stefano Lazzi
- Department of Human Pathology and Oncology, University of Siena, 53100, Italy
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Carbone A, Gloghini A, Vaccher E, Marchetti G, Gaidano G, Tirelli U. KSHV/HHV-8 associated lymph node based lymphomas in HIV seronegative subjects. Report of two cases with anaplastic large cell morphology and plasmablastic immunophenotype. J Clin Pathol 2005; 58:1039-45. [PMID: 16189148 PMCID: PMC1770735 DOI: 10.1136/jcp.2005.026542] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Kaposi sarcoma associated herpesvirus (KSHV)/human herpesvirus 8 (HHV-8) associated lymphomas, which often develop in human immunodeficiency virus (HIV) infected patients with advanced AIDS, present predominantly as primary effusion lymphoma (PEL) or, less frequently, as "solid" extracavitary based lymphomas, associated with serous effusions. These last lymphomas, also called "solid PEL", have been reported before the development of an effusion lymphoma and after resolution of PEL. Interestingly, KSHV/HHV-8 associated lymphomas that present as solid or extracavitary based lesions in HIV seropositive patients without serous effusions have been reported recently. METHODS/RESULTS This paper provides evidence for the existence of a previously undescribed KSHV/HHV-8 associated lymphoma in HIV seronegative patients without serous effusions. These lymphomas exhibit a predilection for the lymph nodes and display anaplastic large cell morphology. These tumours were completely devoid of common cell type specific antigens, including epithelial and melanocytic cell markers. B and T cell associated antigens and other commonly used lymphoid markers were absent or weakly demonstrable in a fraction of the tumour cells. Conversely, immunohistochemical studies showed strong immunostaining with plasma cell reactive antibodies. CONCLUSIONS Analysis of viral infection and immunohistological studies are of primary importance to define this lymph node based KSHV/HHV-8 associated lymphoma with anaplastic large cell morphology and plasmablastic immunophenotype occurring in HIV seronegative patients without serous effusions.
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Affiliation(s)
- A Carbone
- Department of Pathology, Centro di Riferimento Oncologico, Istituto Nazionale Tumori, IRCCS, via Venezian 1, Milano I-20133, Italy.
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Abstract
Human immunodeficiency virus (HIV)-associated lymphomas include: (1) lymphomas also occurring, although sporadically, in the absence of HIV infection. The vast majority of these lymphomas are high-grade B-cell lymphomas: Burkitt lymphoma (BL), diffuse large B-cell lymphoma (DLBCL) with centroblastic (CB) features and DLBCL with immunoblastic (IBL) features; (2) unusual lymphomas occurring more specifically in HIV-positive patients and include two rare entities, namely 'primary effusion lymphoma' (PEL) and 'plasmablastic lymphoma' of the oral cavity. The pathological heterogeneity of acquired immunodeficiency syndrome-associated non-Hodgkin's lymphomas (AIDS-NHL) reflects the heterogeneity of their associated molecular lesions. In AIDS-BL, the molecular lesions involve activation of cMYC, inactivation of P53, and infection with Epstein-Barr virus (EBV). AIDS-IBL infected with EBV are characterised by frequent expression of latent membrane protein 1--an EBV oncoprotein. The biological heterogeneity of AIDS-NHL is highlighted by their histogenetic differences. Kaposi's sarcoma-associated herpesvirus/human herpesvirus 8 (KSHV/HHV8)-associated lymphomas, which often develop in persons with advanced AIDS, present predominantly as PEL. KSHV/HHV8 has also been recently detected in solid extracavitary-based lymphomas. The KSHV/HHV8-associated solid lymphomas are (1) unusual lymphomas that occur more specifically in HIV-positive patients; (2) extracavitary and arise in nodal and/or extranodal sites; and (3) histologically, they usually display a PEL-like morphology and plasma cell-related phenotype.
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Affiliation(s)
- Antonino Carbone
- Department of Pathology, Istituto Nazionale Tumori, Milano, Italy.
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37
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Carbone A. Is diversified clinical presentation of Kaposi sarcoma-associated herpesvirus/human herpesvirus-8-associated lymphoma related to the host's changed conditions? ACTA ACUST UNITED AC 2005; 6:153-5. [PMID: 16231857 DOI: 10.1016/s1557-9190(11)70386-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Antonino Carbone
- Department of Pathology, Istituto Nazionale Tumori, Milan, Italy
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Abstract
In 1994, Chang and Moore reported on the latest of the gammaherpesviruses to infect humans, human herpesvirus 8 (HHV-8) [1]. This novel herpesvirus has and continues to present challenges to define its scope of involvement in human disease. In this review, aspects of HHV-8 infection are discussed, such as, the human immune response, viral pathogenesis and transmission, viral disease entities, and the virus's epidemiology with an emphasis on HHV-8 diagnostics.
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Affiliation(s)
- Daniel C Edelman
- Department of Pathology, University of Maryland Baltimore, School of Medicine, Baltimore, Maryland 21201, USA.
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39
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Pantanowitz L, Wu Z, Dezube BJ, Pihan G. Extracavitary Primary Effusion Lymphoma of the Anorectum. ACTA ACUST UNITED AC 2005; 6:149-52. [PMID: 16231856 DOI: 10.3816/clm.2005.n.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report a case of an extracavitary primary effusion lymphoma occurring in the anorectum of a patient with advanced acquired immune deficiency syndrome. The morphology, null cell immunophenotype, and acquisition of plasma cell markers in this case are typical of the so-called solid variant of primary effusion lymphoma. Lymphoma cells in this case were shown to be co-infected with human herpesvirus-8 and Epstein-Barr virus. Following combination chemotherapy and highly active antiretroviral therapy, this patient has remained in clinical remission for > 3.5 years. The purpose of this report is to add another case to the emerging literature regarding the heterogeneous category of extraserous human herpesvirus-8-associated lymphomas.
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Affiliation(s)
- Liron Pantanowitz
- Department of Pathology, Baystate Medical Center, Springfield, MA, USA
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40
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Chugh P, Matta H, Schamus S, Zachariah S, Kumar A, Richardson JA, Smith AL, Chaudhary PM. Constitutive NF-kappaB activation, normal Fas-induced apoptosis, and increased incidence of lymphoma in human herpes virus 8 K13 transgenic mice. Proc Natl Acad Sci U S A 2005; 102:12885-90. [PMID: 16120683 PMCID: PMC1200255 DOI: 10.1073/pnas.0408577102] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Human herpesvirus 8 (HHV-8, also called Kaposi's sarcoma-associated herpes virus) has been linked to Kaposi's sarcoma and primary effusion lymphoma. HHV-8-encoded viral Fas-associated death domain-like IL-1-converting enzyme inhibitory protein (vFLIP) is one of the few viral proteins to be expressed in latently infected cells and plays a key role in the survival and proliferation of primary effusion lymphoma cells. Two main functions have been ascribed to HHV-8 vFLIP, inhibition of caspase 8/Fas-associated death domain-like IL-1-converting enzyme and activation of NF-kappaB. In this article, we demonstrate that vFLIP-expressing transgenic mice lack any of the features seen in mice deficient in caspase 8 or Fas-associated death domain protein and are not resistant to Fas-induced apoptosis. On the other hand, these mice display constitutive activation of classical and alternative NF-kappaB pathways, enhanced response to mitogenic stimuli, and increased incidence of lymphoma. Collectively, our results demonstrate that HHV-8 vFLIP is an oncogenic protein that mimics the signaling activities of caspase 8 during antigen receptor signaling and could contribute to the development of lymphoproliferative disorders via constitutive NF-kappaB activation independent of inhibition of Fas-induced apoptosis.
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Affiliation(s)
- Priti Chugh
- Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX 75390-8593, USA
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41
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Carbone A, Gloghini A, Vaccher E, Cerri M, Gaidano G, Dalla-Favera R, Tirelli U. Kaposi's sarcoma-associated herpesvirus/human herpesvirus type 8-positive solid lymphomas: a tissue-based variant of primary effusion lymphoma. J Mol Diagn 2005; 7:17-27. [PMID: 15681470 PMCID: PMC1876263 DOI: 10.1016/s1525-1578(10)60004-9] [Citation(s) in RCA: 113] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV), also termed human herpesvirus type 8, is consistently identified in Kaposi's sarcoma, primary effusion lymphoma (PEL), and multicentric Castleman's disease. Here we report four cases of KSHV-bearing solid lymphomas that occurred in AIDS patients (cases 1 to 3) and in a human immunodeficiency virus (HIV)-seronegative person (case 4). The patients presented extranodal masses in the abdomen (cases 1, 3, and 4) or skin (case 2), and nodal involvement, together with Kaposi's sarcoma (case 3). The gastrointestinal tract was involved in two patients (cases 1 and 3). The patients did not develop a lymphomatous effusion. KSHV was detected in the tumor cells of all cases by immunohistochemistry and by polymerase chain reaction. Epstein-Barr virus was detected in two of the HIV-related cases. All KSHV-positive solid lymphomas exhibited PEL-like cell morphology. To investigate the relationship of these disorders to PEL and to other AIDS-associated diffuse large cell lymphomas, KSHV-positive solid lymphomas were tested for the expression of a set of genes that were previously shown by gene profiling analysis to define PEL tumor cells. The results showed that expression of this set of genes in KSHV-positive lymphomas is similar to that of PEL but distinct from KSHV-negative AIDS-associated diffuse large cell lymphomas. Because pathobiological features of KSHV-positive solid lymphomas closely mimic those of PEL, our results suggest that KSHV-positive solid lymphomas should be considered as a tissue-based variant of classical PEL, irrespective of HIV status.
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Affiliation(s)
- Antonino Carbone
- Division of Pathology, Centro di Riferimento Oncologico, Istituto Nazionale Tumori, IRCCS, via Pedemontana Occidentale, Aviano I-33081, Italy.
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42
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Deloose STP, Smit LA, Pals FT, Kersten MJ, van Noesel CJM, Pals ST. High incidence of Kaposi sarcoma-associated herpesvirus infection in HIV-related solid immunoblastic/plasmablastic diffuse large B-cell lymphoma. Leukemia 2005; 19:851-5. [PMID: 15744337 DOI: 10.1038/sj.leu.2403709] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Kaposi sarcoma-associated herpesvirus (KSHV) is known to be associated with two distinct lymphoproliferative disorders: primary effusion lymphoma (PEL) and multicentric Castleman disease (MCD)/MCD-associated plasmablastic lymphoma. We here report a high incidence of KSHV infection in solid HIV-associated immunoblastic/plasmablastic non-Hodgkin's lymphomas (NHLs), in patients lacking effusions and without evidence of (prior) MCD. Within a cohort of 99 HIV-related NHLs, 10 cases were found to be KSHV positive on the basis of immunostaining for KSHV LNA-1 as well as KSHV-specific polymerase chain reaction. All but one of the tumors coexpressed Epstein-Barr virus. Interestingly, all KSHV-positive cases belonged to a distinctive subgroup of 26 diffuse large B-cell lymphomas characterized by the expression of CD138 (syndecan-1) and plasmablastic/immunoblastic morphology. These KSHV-positive lymphomas were preceded by Kaposi sarcoma in 60% of the patients and involved the gastrointestinal tract in 80%. Our results indicate that KSHV infection is not restricted to PEL and MCD; it is also common (38%) in HIV-related solid immunoblastic/plasmablastic lymphomas.
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MESH Headings
- Adult
- Castleman Disease/epidemiology
- Castleman Disease/virology
- Cohort Studies
- Comorbidity
- Female
- HIV Infections/epidemiology
- HIV Infections/virology
- Herpesviridae Infections/epidemiology
- Herpesviridae Infections/virology
- Herpesvirus 8, Human/isolation & purification
- Humans
- Immunohistochemistry/methods
- Immunophenotyping
- Incidence
- Lymphoma, AIDS-Related/epidemiology
- Lymphoma, AIDS-Related/pathology
- Lymphoma, AIDS-Related/virology
- Lymphoma, Large B-Cell, Diffuse/epidemiology
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoma, Large B-Cell, Diffuse/virology
- Male
- Middle Aged
- Netherlands/epidemiology
- Sarcoma, Kaposi/epidemiology
- Sarcoma, Kaposi/virology
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Affiliation(s)
- S T P Deloose
- Department of Pathology Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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43
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Simonelli C, Tedeschi R, Gloghini A, Bortolin MT, Spina M, Bidoli E, Cinelli R, De Paoli P, Carbone A, Tirelli U. Characterization of Immunologic and Virological Parameters in HIV‐Infected Patients with Primary Effusion Lymphoma during Antiblastic Therapy and Highly Active Antiretroviral Therapy. Clin Infect Dis 2005; 40:1022-7. [PMID: 15824995 DOI: 10.1086/428615] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2004] [Accepted: 11/15/2004] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Primary effusion lymphoma (PEL) represents a peculiar lymphoma infected with human herpesvirus 8 (HHV-8) and occurs predominantly in human immunodeficiency virus (HIV)-infected patients. The aim of the present study was to evaluate the immunologic and virological parameters, including HHV-8 viremia, of 5 HIV-infected patients with PEL whose disease was diagnosed and treated at our institute. METHODS Five patients were enrolled in the study. Biological parameters, such as latent and lytic HHV-8 antigen levels, plasma HHV-8 load, Epstein-Barr virus plasma DNA load, HIV-1 load, and CD4 cell count, were assessed before treatment, during therapy, and at follow-up. RESULTS Four patients were treated with chemotherapy and highly active antiretroviral therapy (HAART), and 1 was treated with HAART alone; 3 of 5 patients reached complete remission. HHV-8 could be detected before the initiation of therapy in plasma from all patients analyzed. HHV-8 levels decreased after therapy in 4 patients. During the whole observation period, plasma HHV-8 load showed a statistically significant inverse correlation with CD4 cell count but no significant correlation with HIV load and response to therapy. CONCLUSIONS Our analysis demonstrates that HHV-8 can be detected in the plasma at the onset of PEL; its prognostic role needs to be explored. CD4 cell count seems to be the most important indicator of progression of PEL.
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Affiliation(s)
- Cecilia Simonelli
- Division of Medical Oncology A, National Cancer Institute, Aviano, Italy.
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44
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Zanetto U, Martín CA, Sapia S, Soler MDD, Narbaitz MI. Re: Cioc AM, Allen C, Kalmar J, et al. Oral plasmablastic lymphomas in AIDS patients are associated with human herpesvirus 8. Am J Surg Pathol. 2004; 25:41-46. Am J Surg Pathol 2005; 28:1537-8; author reply 1538. [PMID: 15489660 DOI: 10.1097/01.pas.0000131540.87771.24] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Aoki Y, Tosato G. Therapeutic options for human herpesvirus-8/Kaposi's sarcoma-associated herpesvirus-related disorders. Expert Rev Anti Infect Ther 2004; 2:213-25. [PMID: 15482187 DOI: 10.1586/14787210.2.2.213] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Human herpesvirus-8/Kaposi's sarcoma-associated herpesvirus infection is associated with three proliferative disorders in immunocompromised patients - Kaposi's sarcoma, primary effusion lymphoma and multicentric Castleman's disease. These disorders often develop in patients with advanced AIDS who present a number of therapeutic challenges, underscoring the importance of continuing efforts dedicated to basic and clinical research in this field. In the era of highly active antiretroviral therapy, the incidence of AIDS and Kaposi's sarcoma has considerably decreased, presumably due to enhanced anti-Kaposi's sarcoma-associated herpesvirus immune responses, whereas the situation with primary effusion lymphoma and multicentric Castleman's disease is more complex. Based on advances in the understanding of Kaposi's sarcoma-associated herpesvirus-related disorders and availability of antiretroviral agents, current and future therapeutic approaches will be discussed.
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Affiliation(s)
- Yoshiyasu Aoki
- Experimental Transplantation and Immunology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 10 Center Drive 12N226, Bethesda, MD 20892-1907, USA.
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46
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Chadburn A, Hyjek E, Mathew S, Cesarman E, Said J, Knowles DM. KSHV-Positive Solid Lymphomas Represent an Extra-Cavitary Variant of Primary Effusion Lymphoma. Am J Surg Pathol 2004; 28:1401-16. [PMID: 15489644 DOI: 10.1097/01.pas.0000138177.10829.5c] [Citation(s) in RCA: 212] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Primary effusion lymphoma (PEL) is a unique form of non-Hodgkin lymphoma (NHL) associated with Kaposi sarcoma-associated herpesvirus (KSHV; HHV-8) that displays a distinct constellation of clinical, morphologic, immunologic, and molecular characteristics. Rare KSHV-containing immunoblastic lymphomas occurring in solid tissues have been described. Whether they represent part of the spectrum of PEL has not been determined. The morphologic, immunophenotypic, and molecular features of KSHV-positive solid lymphomas occurring in 8 HIV+/AIDS patients were systematically investigated and compared with those of 29 similarly analyzed PELs. The 8 KSHV-positive solid lymphomas were virtually indistinguishable from the 29 PELs based on morphology (immunoblastic/anaplastic), immunophenotype (CD45 positive; T cell antigen negative; CD30, EMA, CD138 positive; CD10, CD15, BCL6 negative) and genotype (100% immunoglobulin genes rearranged; no identifiable abnormalities in C-MYC, BCL6, BCL1, BCL2; and uniformly EBV positive). The only identifiable phenotypic difference was that the KSHV-positive solid lymphomas appeared to express B cell-associated antigens (25%) and immunoglobulin (25%) slightly more often than the PELs (<5% and 15%, respectively; P = 0.11 and P = 0.08, respectively). The clinical presentation and course of the patients who develop KSHV-positive solid lymphomas were also similar, except for the lack of an effusion and somewhat better survival (median 11 months vs. 3 months). However, the 3 KSHV-positive solid lymphoma patients alive without disease 11, 25, and 44 months following initial presentation were recently diagnosed patients and, unlike the other patients with KSHV-positive solid lymphomas, received anti-retroviral therapy. These findings strongly suggest that these decidedly rare KSHV-positive solid lymphomas belong to the spectrum of PEL. Therefore, we propose that the KSHV-positive solid lymphomas be designated extra-cavitary PELs.
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Affiliation(s)
- Amy Chadburn
- Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, New York 10021, USA.
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47
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Huang Q, Chang KL, Gaal KK, Weiss LM. KSHV/HHV8-associated Lymphoma Simulating Anaplastic Large Cell Lymphoma. Am J Surg Pathol 2004; 28:693-7. [PMID: 15105661 DOI: 10.1097/00000478-200405000-00020] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We report a unique, previously undescribed case of KSHV/HHV8-associated lymphoma in a 49-year-old HIV-seropositive patient. The cervical lymph node-based lymphoma displayed distinctive characteristic features of preferential sinusoidal infiltrate and anaplastic cellular morphology, closely resembling classic anaplastic large cell lymphoma of the WHO classification both histologically and immunophenotypically. Paraffin immunohistochemical study showed that the lymphoma cells were strongly positive for KSHV/HHV8 latency-associated nuclear antigen, and PCR analysis confirmed the presence of KSHV/HHV8 infection. Epstein-Barr virus in situ hybridization was negative. Molecular study clearly demonstrated B-cell lineage with immunoglobulin heavy and kappa light chain gene rearrangements. This case may add to the spectrum of the heterogeneous category of KSHV/HHV8-associated B-cell lymphomas.
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MESH Headings
- AIDS-Related Opportunistic Infections/diagnosis
- AIDS-Related Opportunistic Infections/drug therapy
- AIDS-Related Opportunistic Infections/virology
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal, Murine-Derived
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Cyclophosphamide/administration & dosage
- Diagnosis, Differential
- Doxorubicin/administration & dosage
- HIV Seropositivity
- Herpesviridae Infections/diagnosis
- Herpesviridae Infections/drug therapy
- Herpesvirus 8, Human/genetics
- Herpesvirus 8, Human/isolation & purification
- Humans
- Immunohistochemistry
- Lymphoma, AIDS-Related/diagnosis
- Lymphoma, AIDS-Related/drug therapy
- Lymphoma, AIDS-Related/virology
- Lymphoma, Large-Cell, Anaplastic/diagnosis
- Lymphoma, Large-Cell, Anaplastic/drug therapy
- Lymphoma, Large-Cell, Anaplastic/virology
- Male
- Middle Aged
- Polymerase Chain Reaction
- Prednisone/administration & dosage
- RNA, Viral/genetics
- Rituximab
- Salvage Therapy
- Stem Cell Transplantation
- Treatment Outcome
- Vincristine/administration & dosage
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Affiliation(s)
- Qin Huang
- Division of Pathology, City of Hope National Medical Center, Duarte, CA 91010, USA.
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