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Lurain KA, Ramaswami R, Krug LT, Whitby D, Ziegelbauer JM, Wang HW, Yarchoan R. HIV-associated cancers and lymphoproliferative disorders caused by Kaposi sarcoma herpesvirus and Epstein-Barr virus. Clin Microbiol Rev 2024:e0002223. [PMID: 38899877 DOI: 10.1128/cmr.00022-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
SUMMARYWithin weeks of the first report of acquired immunodeficiency syndrome (AIDS) in 1981, it was observed that these patients often had Kaposi sarcoma (KS), a hitherto rarely seen skin tumor in the USA. It soon became apparent that AIDS was also associated with an increased incidence of high-grade lymphomas caused by Epstein-Barr virus (EBV). The association of AIDS with KS remained a mystery for more than a decade until Kaposi sarcoma-associated herpesvirus (KSHV) was discovered and found to be the cause of KS. KSHV was subsequently found to cause several other diseases associated with AIDS and human immunodeficiency virus (HIV) infection. People living with HIV/AIDS continue to have an increased incidence of certain cancers, and many of these cancers are caused by EBV and/or KSHV. In this review, we discuss the epidemiology, virology, pathogenesis, clinical manifestations, and treatment of cancers caused by EBV and KSHV in persons living with HIV.
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Affiliation(s)
- Kathryn A Lurain
- The HIV and AIDS Malignancy Branch, Center for Cancer Research, Bethesda, Maryland, USA
| | - Ramya Ramaswami
- The HIV and AIDS Malignancy Branch, Center for Cancer Research, Bethesda, Maryland, USA
| | - Laurie T Krug
- The HIV and AIDS Malignancy Branch, Center for Cancer Research, Bethesda, Maryland, USA
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Joseph M Ziegelbauer
- The HIV and AIDS Malignancy Branch, Center for Cancer Research, Bethesda, Maryland, USA
| | - Hao-Wei Wang
- Laboratory of Pathology, National Cancer Institute, Bethesda, Maryland, USA
| | - Robert Yarchoan
- The HIV and AIDS Malignancy Branch, Center for Cancer Research, Bethesda, Maryland, USA
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2
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Rodolfi S, Della-Torre E, Bongiovanni L, Mehta P, Fajgenbaum DC, Selmi C. Lymphadenopathy in the rheumatology practice: a pragmatic approach. Rheumatology (Oxford) 2024; 63:1484-1493. [PMID: 38109670 PMCID: PMC11147542 DOI: 10.1093/rheumatology/kead644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/31/2023] [Accepted: 11/05/2023] [Indexed: 12/20/2023] Open
Abstract
Lymphadenopathy is a common clinical finding and diagnostic challenge within general medicine and rheumatology practice. It may represent a primary manifestation of an underlying immune-mediated disease or indicate an infectious or neoplastic complication requiring differing management. Evaluating lymphadenopathy is of particular relevance in rheumatology, given that lymph node enlargement is a common finding within the clinical spectrum of several well-known rheumatologic disorders including RA, SLE and SS. In addition, lymphadenopathy represents a hallmark manifestation of rare immunological diseases such as Castleman disease and IgG4-related disease that must be considered in the differential diagnosis because effective targeted treatments can now impact the prognosis of these conditions. In this review we present an overview of the clinical significance of lymphadenopathy in common and rare rheumatologic diseases and propose a practical approach to lymphadenopathy in the rheumatology practice. Differential diagnosis of Castleman disease and therapeutic options for this condition of increasing rheumatologic interest will be discussed in detail.
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Affiliation(s)
- Stefano Rodolfi
- Department of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Emanuel Della-Torre
- Università Vita-Salute San Raffaele, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases (UnIRAR), Milan, Italy
- IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Lucia Bongiovanni
- Università Vita-Salute San Raffaele, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Department of Haematopathology Diagnostic Area, Unit of Pathology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Puja Mehta
- Division of Medicine, University College, Centre for Inflammation and Tissue Repair, UCL Respiratory, London
- Department of Rheumatology, University College London Hospital (UCLH), London, UK
| | - David C Fajgenbaum
- Department of Medicine, Division of Translational Medicine and Human Genetics, Center for Cytokine Storm Treatment and Laboratory, Philadelphia, PA, USA
| | - Carlo Selmi
- Department of Rheumatology and Clinical Immunology, IRCCS Humanitas Research Hospital, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
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3
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Chang LC, Fu PA, Wang SH, Chang KC, Hsu YT. Kaposi sarcoma herpesvirus/human herpesvirus 8-positive diffuse large B-cell lymphoma characterized by malignant ascites: A case report. Pathol Res Pract 2024; 255:155185. [PMID: 38342036 DOI: 10.1016/j.prp.2024.155185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/13/2024]
Abstract
Herein, we report a rare case of Kaposi sarcoma herpesvirus/human herpesvirus 8 (KSHV/HHV8)-positive diffuse large B-cell lymphoma (DLBCL), which is characterized by malignant ascites and complex karyotypes. A 72-year-old male patient who tested negative for human immunodeficiency virus presented with thrombocytopenia and lymphadenopathies. He was diagnosed with KSHV/HHV8-associated multicentric Castleman disease (MCD). After three years, he developed progressive lymphadenopathies and massive ascites. The lymphoma cells in the ascitic fluid presented with characteristic immunophenotype and monoclonality, which support the diagnosis of KSHV/HHV8-positive DLBCL. Lymphadenopathies and massive splenomegaly are common manifestations of KSHV/HHV8-positive DLBCL. Nevertheless, peritoneal involvement, as observed in this case, is a rare presentation. This emphasizes the diagnostic complexities of KSHV/HHV8-associated lymphoproliferative disorders. Within the context of preexisting KSHV/HHV8-associated multicentric Castleman disease, the differential diagnosis of this disorder can be challenging.
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Affiliation(s)
- Li-Chang Chang
- Division of Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704302, Taiwan
| | - Pei-An Fu
- Division of Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704302, Taiwan
| | - Shu-Hsien Wang
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704302, Taiwan
| | - Kung-Chao Chang
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704302, Taiwan
| | - Ya-Ting Hsu
- Division of Hematology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704302, Taiwan; Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 701401, Taiwan.
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4
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Carbone A, Chadburn A, Gloghini A, Vaccher E, Bower M. Immune deficiency/dysregulation -associated lymphoproliferative disorders. Revised classification and management. Blood Rev 2024; 64:101167. [PMID: 38195294 DOI: 10.1016/j.blre.2023.101167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/13/2023] [Accepted: 12/30/2023] [Indexed: 01/11/2024]
Abstract
Significant advances in the field of lymphoma have resulted in two recent classification proposals, the International Consensus Classification (ICC) and the 5th edition WHO. A few entities are categorized differently in the ICC compared to the WHO. Nowhere is this more apparent than the immunodeficiency lymphoproliferative disorders. The three previous versions of the WHO classification (3rd, 4th and revised 4th editions) and the ICC focused on four clinical settings in which these lesions arise for primary categorization. In contrast the 2023 WHO 5th edition includes pathologic characteristics including morphology and viral status, in addition to clinical setting, as important information for lesion classification. In addition, the 2023 WHO recognizes a broader number of clinical scenarios in which these lesions arise, including not only traditional types of immune deficiency but also immune dysregulation. With this classification it is hoped that new treatment strategies will be developed leading to better patient outcomes.
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Affiliation(s)
- Antonino Carbone
- Centro di Riferimento Oncologico, Istituto di Ricovero e Cura a Carattere Scientifico, National Cancer Institute, Aviano, Italy.
| | - Amy Chadburn
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, United States of America.
| | - Annunziata Gloghini
- Department of Advanced Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy.
| | - Emanuela Vaccher
- Infectious Diseases and Tumors Unit, Department of Medical Oncology, Centro di Riferimento Oncologico (CRO), IRCCS, National Cancer Institute, Aviano, Italy.
| | - Mark Bower
- Department of Oncology and National Centre for HIV Malignancy, Chelsea & Westminster Hospital, London SW109NH, UK.
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5
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Abraham SS, Narayanan G, Thambi SM, Vasudevan JA, Joy Philip DS, Purushothaman PN, Nair SG, Nair R. Castleman disease: Experience from a single institution. MEDICINE INTERNATIONAL 2023; 3:56. [PMID: 37927353 PMCID: PMC10620848 DOI: 10.3892/mi.2023.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/02/2023] [Indexed: 11/07/2023]
Abstract
Castleman disease (CD) describes a group of rare heterogeneous lymphoproliferative disorders characterized by enlarged hyperplastic lymph nodes. It is classified into unicentric CD (UCD) and multicentric CD (MCD). The present retrospective study examined the data of 11 patients with CD diagnosed and treated at a tertiary cancer center from 2017 to 2022. The median age of the study group was 41 years (range, 24 to 68 years). There were 8 males and 3 females. In total, 7 patients were diagnosed with UCD and 4 patients with MCD. The hyaline-vascular variant was the most common histology in both UCD and MCD. Among the 7 patients with UCD, 5 patients underwent excision, 1 patient underwent debulking followed by radiotherapy and 1 patient received single agent rituximab. Of the patients with UCD, 6 had a complete response (CR) and 1 patient had a partial response (PR). All 4 patients with MCD received systemic treatment, which included single agent rituximab (2 patients), rituximab, cyclophosphamide, doxorubicin, vincristine and prednisolone (RCHOP) (1 patient) and CHOP (1 patient). Among the patients with MCD, 1 patient attained a CR, 2 patients had a PR and 1 patient succumbed. The 3-year survival rate for the study population was 91%. In summary, CD is a rare disease occurring in immunodeficient patients. UCD is more common and is associated with better outcomes. Surgery is the mainstay of management in UCD whereas MCD requires combination chemotherapy.
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Affiliation(s)
- Sherry S. Abraham
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala 695011, India
| | - Geetha Narayanan
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala 695011, India
| | | | | | - Deepa Susan Joy Philip
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala 695011, India
| | - Prakash N. Purushothaman
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala 695011, India
| | - Sreejith G. Nair
- Department of Medical Oncology, Regional Cancer Centre, Thiruvananthapuram, Kerala 695011, India
| | - Rekha Nair
- Department of Pathology, Regional Cancer Centre, Thiruvananthapuram, Kerala 695011, India
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6
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Rasmussen C, Gérard L, Fadlallah J, Corvilain E, Galicier L, Meignin V, Oksenhendler E, Boutboul D. Higher rate of progression in HIV- than in HIV+ patients after rituximab for HHV8+ multicentric Castleman disease. Blood Adv 2023; 7:5663-5669. [PMID: 37288720 PMCID: PMC10546345 DOI: 10.1182/bloodadvances.2023010316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/16/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023] Open
Abstract
Rituximab has revolutionized the treatment of Kaposi sarcoma-associated herpesvirus/human herpesvirus 8-associated multicentric Castleman disease (HHV8+ MCD), converting a rapidly fatal illness into a relapsing disease. HHV8+ MCD mainly affects patients with HIV infection but can also be observed in patients without HIV infection. We retrospectively analyzed a cohort of 99 patients (73 who tested HIV+ and 26 who tested HIV-), with HHV8+ MCD treated with rituximab-based therapy. Baseline characteristics were similar in patients who had HIV- and HIV+ results, although those who tested HIV- were older (65 vs 42 years) and presented less frequently with Kaposi sarcoma (15% vs 40%). Ninety-five patients (70 HIV+ and 25 HIV-) achieved complete remission (CR) after rituximab-based therapy. After a median follow-up of 51 months, 36 patients (12 HIV- and 24 HIV+) experienced disease progression. The 5-year progression-free survival (PFS) was 54%. The 5-year PFS was lower in HIV- patients than in HIV+ patients : 26% and 62%, respectively (P = .02). A multivariate prognostic factors analysis including time-dependent covariates revealed that HIV- status, reoccurrence of HHV8 DNA >3 log copies per mL, and serum C-reactive protein (CRP) >20 mg/mL were independently associated with an increased risk of progression after rituximab-induced CR (P = .001; P = .01; and P = .01, respectively). The lower rate of progression observed in the population with HIV+ results despite a longer follow-up period might have resulted from the possible immune restoration upon antiretroviral therapy. HHV8 viral load and serum CRP monitoring after rituximab therapy provide information on the progression risk and may help in the decision to resume specific therapy.
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Affiliation(s)
- Camille Rasmussen
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Laurence Gérard
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Jehane Fadlallah
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Emilie Corvilain
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Lionel Galicier
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
- National Reference Center for Castleman Disease, Paris, France
| | - Véronique Meignin
- Department of Pathology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
| | - Eric Oksenhendler
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
- National Reference Center for Castleman Disease, Paris, France
- Université de Paris, Paris, France
| | - David Boutboul
- Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique–Hôpitaux de Paris, Paris, France
- National Reference Center for Castleman Disease, Paris, France
- Université de Paris, Paris, France
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7
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Ramaswami R, Uldrick TS. Remission after rituximab for HHV8+ MCD: what next? Blood Adv 2023; 7:5661-5662. [PMID: 37756537 PMCID: PMC10546343 DOI: 10.1182/bloodadvances.2023011043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023] Open
Affiliation(s)
- Ramya Ramaswami
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
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8
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Plano F, Mancuso S, Camarda GM, Butera MG, Sucato G, Alecci G, Florena AM, Perrone S, Siragusa SM. A Multicentric Castleman Disease Associated with Mixed Warm and Cold Antibody-Mediated AHA Responsive to Siltuximab. Chemotherapy 2023; 69:35-39. [PMID: 37634492 DOI: 10.1159/000533235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/21/2023] [Indexed: 08/29/2023]
Abstract
Castleman disease is non-clonal lymphoproliferative disorders defined by hypertrophy of lymph nodes. The multicentric form (MCD), in which multiple lymph node stations are involved, is not associated with HHV8 infection, but considered idiopathic, although IL-6 appears to play a central role in its pathogenesis. Here, we report the case of a patient who presented with mixed autoimmune hemolytic anemia (AIHA) and adenopathy that was very challenging to diagnose due to very low values of hemoglobin and refractoriness of obtaining any improvement of AIHA with standard first and second lines of therapy (steroids, rituximab, immunoglobulin, erythropoietin, and cyclosporine). When we safely proceeded to lymph node biopsy, a diagnosis of MCD was established. This permitted the treatment with siltuximab, an anti-IL-6 monoclonal antibody. After only 1 week, hemoglobin raised and he was discharged. After 1 year, he was still in remission. This case underlines the challenges in diagnosis of MCD, and the first case of response to siltuximab after the failure of rituximab to relieve mixed AIHA.
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Affiliation(s)
- Federica Plano
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Salvatrice Mancuso
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Giulia Maria Camarda
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Maria Giulia Butera
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Giuseppe Sucato
- Hematology Division, University Hospital Policlinico "Paolo Giaccone,", Palermo, Italy
| | - Giuseppe Alecci
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Ada Maria Florena
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
| | - Salvatore Perrone
- Hematology Division, University Hospital Policlinico "Paolo Giaccone,", Palermo, Italy
| | - Sergio Mario Siragusa
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, Palermo, Italy
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9
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Patel R, Lurain K, Yarchoan R, Ramaswami R. Clinical management of Kaposi sarcoma herpesvirus-associated diseases: an update on disease manifestations and treatment strategies. Expert Rev Anti Infect Ther 2023; 21:929-941. [PMID: 37578202 PMCID: PMC10529793 DOI: 10.1080/14787210.2023.2247161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/08/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
INTRODUCTION Kaposi sarcoma herpes virus (KSHV) is associated with several diseases including Kaposi sarcoma, a form of multicentric Castleman's disease, primary effusion lymphoma, and an inflammatory cytokine syndrome. These KSHV-associated diseases (KAD) can present with heterogenous signs and symptoms that are often associated with cytokine dysregulation that may result in multiorgan dysfunction. The inability to promptly diagnose and treat these conditions can result in long-term complications and mortality. AREAS COVERED Existing epidemiological subtypes of existing KSHV-associated diseases, specifically Kaposi sarcoma as well as the incidence of several KSHV-associated disorders are described. We review the KSHV latent and lytic phases as they correlate with KSHV-associated diseases. Given the complicated presentations, we discuss the clinical manifestations, current diagnostic criteria, existing treatment algorithms for individual KAD, and when they occur concurrently. With emerging evidence on the virus and host interactions, we evaluate novel approaches for the treatment of KAD. An extensive literature search was conducted to support these findings. EXPERT OPINION KSHV leads to complex and concurrent disease processes that are often underdiagnosed both in the United States and worldwide. New therapies that exist for many of these conditions focus on chemotherapy-sparing options that seek to target the underlying viral pathogenesis or immunotherapy strategies.
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Affiliation(s)
- Roshani Patel
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kathryn Lurain
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Robert Yarchoan
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ramya Ramaswami
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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10
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Lurain K, Yarchoan R, Ramaswami R. Immunotherapy for KSHV-associated diseases. Curr Opin Virol 2022; 55:101249. [PMID: 35803203 PMCID: PMC9464688 DOI: 10.1016/j.coviro.2022.101249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/31/2022] [Accepted: 06/08/2022] [Indexed: 11/18/2022]
Abstract
Kaposi sarcoma herpesvirus (KSHV)-associated diseases (Kaposi sarcoma, multicentric Castleman disease, primary effusion lymphoma, and KSHV inflammatory cytokine syndrome) are associated with immune suppression and dysregulation and loss of KSHV-specific immunity. These diseases are most frequent in people living with HIV as well as those with primary or iatrogenic immune deficiencies. KSHV itself can modulate the immune system via viral homologs of host cytokines or downregulation of immune-surface markers altering host immune surveillance. These factors make KSHV-associated diseases prime targets for immunotherapy approaches. Several agents have been studied or are under investigation in KSHV-associated diseases, including monoclonal antibodies, immunomodulatory agents, and therapeutic cytokines. Here, we review the role of immunotherapies in KSHV-associated diseases.
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Affiliation(s)
- Kathryn Lurain
- HIV & AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Robert Yarchoan
- HIV & AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ramya Ramaswami
- HIV & AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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11
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Liao D, Geyer JT, Kacker A. Cervical Lymphadenopathy in an Elderly Man. JAMA Otolaryngol Head Neck Surg 2022; 148:686-687. [PMID: 35551589 DOI: 10.1001/jamaoto.2022.0829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- David Liao
- Department of Otolaryngology-Head & Neck Surgery, New York-Presbyterian Hospital/Weill Cornell Medicine, New York.,Department of Otolaryngology-Head & Neck Surgery, New York-Presbyterian Hospital/Columbia University Medical Center, New York
| | - Julia T Geyer
- Department of Pathology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York
| | - Ashutosh Kacker
- Department of Otolaryngology-Head & Neck Surgery, New York-Presbyterian Hospital/Weill Cornell Medicine, New York
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12
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Cesarman E, Chadburn A, Rubinstein PG. KSHV/HHV8-mediated hematologic diseases. Blood 2022; 139:1013-1025. [PMID: 34479367 PMCID: PMC8854683 DOI: 10.1182/blood.2020005470] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/08/2021] [Indexed: 11/20/2022] Open
Abstract
Kaposi sarcoma (KS) herpesvirus (KSHV), also known as human herpesvirus 8, is the causal agent of KS but is also pathogenetically related to several lymphoproliferative disorders, including primary effusion lymphoma (PEL)/extracavitary (EC) PEL, KSHV-associated multicentric Castleman disease (MCD), KSHV+ diffuse large B-cell lymphoma, and germinotropic lymphoproliferative disorder. These different KSHV-associated diseases may co-occur and may have overlapping features. KSHV, similar to Epstein-Barr virus (EBV), is a lymphotropic gammaherpesvirus that is preferentially present in abnormal lymphoid proliferations occurring in immunecompromised individuals. Notably, both KSHV and EBV can infect and transform the same B cell, which is frequently seen in KSHV+ EBV+ PEL/EC-PEL. The mechanisms by which KSHV leads to lymphoproliferative disorders is thought to be related to the expression of a few transforming viral genes that can affect cellular proliferation and survival. There are critical differences between KSHV-MCD and PEL/EC-PEL, the 2 most common KSHV-associated lymphoid proliferations, including viral associations, patterns of viral gene expression, and cellular differentiation stage reflected by the phenotype and genotype of the infected abnormal B cells. Advances in treatment have improved outcomes, but mortality rates remain high. Our deepening understanding of KSHV biology, clinical features of KSHV-associated diseases, and newer clinical interventions should lead to improved and increasingly targeted therapeutic interventions.
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Affiliation(s)
- Ethel Cesarman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Amy Chadburn
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Paul G Rubinstein
- Section of Hematology/Oncology, Department of Medicine, John H. Stroger Jr Hospital of Cook County, Chicago, IL; and
- Department of Medicine, Ruth M. Rothstein CORE Center, Rush University Medical Center, Chicago, IL
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13
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Berger JR, Kakara M. The Elimination of Circulating Epstein-Barr Virus Infected B Cells Underlies Anti-CD20 Monoclonal Antibody Activity in Multiple Sclerosis: A Hypothesis. Mult Scler Relat Disord 2022; 59:103678. [DOI: 10.1016/j.msard.2022.103678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/08/2022] [Accepted: 02/06/2022] [Indexed: 11/29/2022]
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14
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Abu Khalaf S, Dandachi D, Granwehr BP, Rodriguez-Barradas MC. Cancer immunotherapy in adult patients with HIV. J Investig Med 2022; 70:883-891. [PMID: 35086858 DOI: 10.1136/jim-2021-002205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2021] [Indexed: 11/03/2022]
Abstract
The availability of antiretroviral therapy (ART) has increased the life expectancy of people with HIV (PWH) and reduced the incidence of AIDS-associated malignancies, yet PWH have a significantly increased incidence of malignancy and less favorable outcomes of cancer treatment compared with the general population.Immunotherapy has revolutionized cancer therapy, becoming the standard of care for various malignancy treatments. However, PWH are an underserved population with limited access to clinical trials and cancer treatment.This review of the available evidence on different classes of cancer immunotherapy in PWH is mostly based on case reports, case series, but few prospective studies and clinical trials due to the exclusion of PWH from most oncologic clinical trials. The results of the available evidence support the safety of immunotherapy in PWH. Immunotherapy has similar effectiveness in PWH, an acceptable toxicity profile, and has no clinically significant impact on HIV viral load and CD4-T cell count. In addition, there is no reported change in the incidence of opportunistic infections and other complications for PWH with well-controlled viremia.This review aims to briefly summarize the current state of immunotherapy in cancer, guide clinicians in the management of immunotherapy in cancer PWH, and encourage the inclusion of PWH in clinical trials of cancer immunotherapy.
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Affiliation(s)
- Suha Abu Khalaf
- Department of Medicine, Division of Infectious Diseases, University of Missouri System, Columbia, Missouri, USA
| | - Dima Dandachi
- Department of Medicine, Division of Infectious Diseases, University of Missouri System, Columbia, Missouri, USA
| | - Bruno P Granwehr
- Department of Medicine, Division of Infectious Diseases, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Maria C Rodriguez-Barradas
- Infectious Diseases Section, Michael E DeBakey VAMC, Houston, Texas, USA.,Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
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Guayboon T, Chinthammitr Y, Sukpanichnant S, Horthongkham N, Angkasekwinai N. Human herpesvirus 8-associated multicentric Castleman disease in a patient with advanced HIV infection: A case report. Medicine (Baltimore) 2021; 100:e28077. [PMID: 34889256 PMCID: PMC8663817 DOI: 10.1097/md.0000000000028077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/15/2021] [Indexed: 01/05/2023] Open
Abstract
RATIONAL Multicentric Castleman disease (MCD) is a nonclonal lymphoproliferative disorder that is rarely reported from Southeast Asian countries. Here, we report a case of human herpesvirus 8 (HHV-8)-associated MCD in a patient with advanced human immunodeficiency virus (HIV) infection who presented with prolonged intermittent fever, urticarial rash, hepatosplenomegaly, and generalized lymphadenopathy. PATIENT CONCERNS A 34-year-old man with advanced HIV infection who was in good compliance with his antiretroviral treatment regimen presented with intermittent fever, weight loss, marked hepatosplenomegaly, and generalized lymphadenopathy. Recurrent symptoms of high-grade fever, abdominal discomfort, pancytopenia, and high C-reactive protein level occurred for 16 months. DIAGNOSES Histopathological findings of left inguinal lymph node revealed diffuse effacement of lymph node architecture with coexpression of HHV-8 latency-associated nuclear antigen 1 from immunohistochemical staining. The HHV-8 viral load was 335,391 copies/mL. INTERVENTIONS The patient was treated initially with one dose of intravenous rituximab (375 mg/m2) followed by subcutaneous rituximab (1400 mg) weekly for 5 weeks. OUTCOMES The patient's recurrent systemic symptoms subsided dramatically, and he has now been in remission for almost two years. LESSONS HHV8-associated MCD remains a diagnostic challenge in advanced HIV disease and should be suspected in those with recurrent flares of systemic inflammatory symptoms. Lymph node histopathology is essential for diagnosis and for excluding clonal malignancy. HHV-8 viral load is also useful for diagnosis and for monitoring disease activity.
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Affiliation(s)
- Theerajet Guayboon
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Yingyong Chinthammitr
- Division of Hematology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sanya Sukpanichnant
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Navin Horthongkham
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Nasikarn Angkasekwinai
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Carbone A, Borok M, Damania B, Gloghini A, Polizzotto MN, Jayanthan RK, Fajgenbaum DC, Bower M. Castleman disease. Nat Rev Dis Primers 2021; 7:84. [PMID: 34824298 PMCID: PMC9584164 DOI: 10.1038/s41572-021-00317-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/06/2021] [Indexed: 01/02/2023]
Abstract
Castleman disease (CD), a heterogeneous group of disorders that share morphological features, is divided into unicentric CD and multicentric CD (MCD) according to the clinical presentation and disease course. Unicentric CD involves a solitary enlarged lymph node and mild symptoms and excision surgery is often curative. MCD includes a form associated with Kaposi sarcoma herpesvirus (KSHV) (also known as human herpesvirus 8) and a KSHV-negative idiopathic form (iMCD). iMCD can present in association with severe syndromes such as TAFRO (thrombocytopenia, ascites, fever, reticulin fibrosis and organomegaly) or POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal plasma cell disorder and skin changes). KSHV-MCD often occurs in the setting of HIV infection or another cause of immune deficiency. The interplay between KSHV and HIV elevates the risk for the development of KSHV-induced disorders, including KSHV-MCD, KSHV-lymphoproliferation, KSHV inflammatory cytokine syndrome, primary effusion lymphoma and Kaposi sarcoma. A CD diagnosis requires a multidimensional approach, including clinical presentation and imaging, pathological features, and molecular virology. B cell-directed monoclonal antibody therapy is the standard of care in KSHV-MCD, and anti-IL-6 therapy is the recommended first-line therapy and only treatment of iMCD approved by the US FDA and EMA.
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Affiliation(s)
- Antonino Carbone
- Centro di Riferimento Oncologico (CRO), IRCCS, National Cancer Institute, Aviano, Italy.
- S. Maria degli Angeli Hospital, Pordenone, Italy.
| | - Margaret Borok
- Unit of Internal Medicine, University of Zimbabwe Faculty of Medicine and Health Sciences, Harare, Zimbabwe
| | - Blossom Damania
- Department of Microbiology and Immunology and Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Annunziata Gloghini
- Department of Pathology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Mark N Polizzotto
- Clinical Hub for Interventional Research, John Curtin School of Medical Research, The Australian National University, Canberra, NSW, Australia
| | - Raj K Jayanthan
- Castleman Disease Collaborative Network, Philadelphia, PA, USA
| | - David C Fajgenbaum
- Center for Cytokine Storm Treatment & Laboratory, University of Pennsylvania, Philadelphia, PA, USA
| | - Mark Bower
- National Centre for HIV Malignancy, Chelsea & Westminster Hospital, London, UK
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17
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KSHV/HHV8-Associated Lymphoproliferative Disorders: Lessons Learnt from People Living with HIV. HEMATO 2021. [DOI: 10.3390/hemato2040047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In 1992, Kaposi sarcoma herpesvirus (KSHV/HHV8) was discovered and identified as the causative agent for Kaposi sarcoma. Subsequently, the presence of this virus has been detected in a number of lymphoproliferative disorders in people living with HIV (PLWH), including: KSHV-associated multicentric Castleman disease, primary effusion lymphoma, KSHV-positive diffuse large B-cell lymphoma, and germinotropic lymphoproliferative disorder. Each of these rare entities has subsequently been diagnosed in HIV-negative individuals. The recognition of some of these KSHV/HHV8-associated lymphoproliferative disorders has led to their inclusion in the WHO classification of lymphomas in 2008 and the revision of 2016; however, further revision is under way to update the classification. The relatively recent recognition of these lymphoproliferative disorders and their low incidence, particularly in the HIV-negative population, means that there is little published evidence and consensus on their clinical features and management. The publication of a new WHO classification of lymphomas should yield diagnostic clarity, providing an impetus for retrospective case series and prospective clinical trials in these KSHV/HHV8-associated lymphoproliferative disorders.
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18
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Lomas OC, Streetly M, Pratt G, Cavet J, Royston D, Schey S, Ramasamy K. The management of Castleman disease. Br J Haematol 2021; 195:328-337. [PMID: 34340261 DOI: 10.1111/bjh.17688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/13/2021] [Accepted: 06/15/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Oliver C Lomas
- Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Matthew Streetly
- Guys and St, Thomas' NHS Foundation Trust, London, UK
- Kings College Hospital NHS Foundation Trust, London, UK
| | - Guy Pratt
- Department of Haematology, University Hospitals Birmingham NHS Foundation, Birmingham, UK
| | - Jim Cavet
- The Christie NHS Foundation Trust, Manchester, UK
| | - Daniel Royston
- Department of Cellular Pathology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Stephen Schey
- King's College, University of London, London, UK
- Department of Haematology, King's College Hospital, London, UK
| | - Karthik Ramasamy
- Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- NIHR Oxford Biomedical Research Centre, Oxford University NHS Foundation Trust, Oxford, UK
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Darwish I, Costiniuk C, Kronfli N, Haegert D, Routy JP. Concurrent HIV viral blips during two episodes of multicentric Castleman disease in an adult on antiretroviral therapy: Implication for HIV persistence. IDCases 2021; 26:e01315. [PMID: 34786336 PMCID: PMC8577484 DOI: 10.1016/j.idcr.2021.e01315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/18/2021] [Indexed: 11/26/2022] Open
Abstract
Human herpesvirus-8 (HHV8)-associated multicentric Castleman disease (HHV8-MCD) is a rare nonmalignant lymphoproliferative disorder most commonly observed in PLWH. Herein, we describe an HIV-infected adult male from Cameroon with relapsing HHV8-MCD (HIV+MCD). The patient developed constitutional symptoms, diffuse lymphadenopathy, thrombocytopenia and autoimmune hemolytic anemia. Excisional lymph node biopsy findings were consistent with HHV8-MCD. He was successfully treated with corticosteroids and rituximab. One year later, he developed relapsing disease and was successfully treated again with rituximab. Interestingly, HIV viral load blips correlate with MCD flares, suggesting that low-level viremia is linked with T-cell clonal expansion and/or inflammation, rather than a lack of effective antiretroviral therapy. Rituximab either alone or in combination with chemotherapy for aggressive disease is the standard of care, with approximately 95% of treated patients achieving complete remission. Despite highly effective therapy, HIV+MCD often presents with a relapsing and remitting disease course and carries an increased risk for the development of HHV8-associated lymphoma.
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Affiliation(s)
- Ilyse Darwish
- Division of Infectious Diseases, McGill University Health Centre, Montréal, Quebec, Canada
| | - Cecilia Costiniuk
- Division of Infectious Diseases, McGill University Health Centre, Montréal, Quebec, Canada
- Chronic Viral Illness Service, McGill University Health Centre, Montréal, Quebec, Canada
- Department of Microbiology and Immunology, McGill University, Montréal, Quebec, Canada
| | - Nadine Kronfli
- Division of Infectious Diseases, McGill University Health Centre, Montréal, Quebec, Canada
- Chronic Viral Illness Service, McGill University Health Centre, Montréal, Quebec, Canada
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montréal, Quebec, Canada
| | - David Haegert
- Department of Pathology, McGill University Health Centre, Montréal, Quebec, Canada
| | - Jean-Pierre Routy
- Chronic Viral Illness Service, McGill University Health Centre, Montréal, Quebec, Canada
- Department of Microbiology and Immunology, McGill University, Montréal, Quebec, Canada
- Division of Hematology, McGill University Health Centre, Montréal, Quebec, Canada
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20
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Goodman AM, Jeong AR, Phillips A, Wang HY, Sokol ES, Cohen PR, Sicklick J, Fajgenbaum DC, Kurzrock R. Novel somatic alterations in unicentric and idiopathic multicentric Castleman disease. Eur J Haematol 2021; 107:642-649. [PMID: 34431136 DOI: 10.1111/ejh.13702] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Castleman disease (CD) is a heterogeneous group of disorders involving systemic inflammation and lymphoproliferation. Recently, clonal mutations have been identified in unicentric CD (UCD) and idiopathic multicentric CD (iMCD), suggesting a potential underlying neoplastic process. METHODS Patients with UCD or iMCD with next generation sequencing (NGS) data on tissue DNA and/or circulating tumor DNA (ctDNA) were included. RESULTS Five patients were included, 4 with iMCD and 1 with UCD. Four patients (80%) were women; median age was 40 years. Three of five patients (60%) had ≥1 clonal mutation detected on biopsy among the genes included in the panel. One patient with iMCD had a 14q32-1p35 rearrangement and a der(1)dup(1)(q42q21)del(1)(q42) (1q21 being IL-6R locus) on karyotype. This patient also had a NF1 K2459fs alteration on ctDNA (0.3%). Another patient with iMCD had a KDM5C Q836* mutation, and one patient with UCD had a TNS3-ALK fusion but no ALK expression by immunohistochemistry. CONCLUSIONS We report 4 novel somatic alterations found in patients with UCD or iMCD. The 1q21 locus contains IL-6R, and duplication of this locus may increase IL-6 expression. These findings suggest that a clonal process may be responsible for the inflammatory phenotype in some patients with UCD and iMCD.
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Affiliation(s)
- Aaron M Goodman
- Division of Blood and Marrow Transplantation, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Ah-Reum Jeong
- Division of Hematology and Oncology, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Alexis Phillips
- Division of Translational Medicine and Human Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Huan-You Wang
- Division of Laboratory and Genomic Medicine, Department of Pathology, University of California San Diego, La Jolla, California, USA
| | - Ethan S Sokol
- Cancer Genomics Research, Foundation Medicine, Cambridge, Massachusetts, USA
| | - Philip R Cohen
- Department of Dermatology, University of California Davis Medical Center, Sacramento, California, USA.,Department of Dermatology, Touro University California College of Osteopathic Medicine, Vallejo, California, USA
| | - Jason Sicklick
- Division of Surgical Oncology, Department of Surgery, University of California San Diego, La Jolla, California, USA
| | - David C Fajgenbaum
- Division of Translational Medicine and Human Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Razelle Kurzrock
- Division of Hematology and Oncology, Department of Medicine, Center for Personalized Cancer Therapy, University of California San Diego, La Jolla, California, USA
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21
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Liu B, Huang Y, Tang L, Guan J, Zhou X, Zhan H. Inflammatory pseudotumor of Castleman disease and IgG4-related disease masquerading as kidney malignancy. Diagn Pathol 2021; 16:74. [PMID: 34376196 PMCID: PMC8353839 DOI: 10.1186/s13000-021-01134-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 07/28/2021] [Indexed: 12/24/2022] Open
Abstract
Background With widespread clinical application of imaging techniques, renal space-occupying lesions have been identified at an increasing frequency. Here, we report two rare cases, Castleman disease (CD) and IgG4-related disease (IgG4-RD), presenting primarily with the symptoms and imaging findings of kidney malignancy. Case presentation In case 1, an occupying lesion located in the right renal pelvis was detected using magnetic resonance imaging in a 32-year-old female who presented with hematuria and lumbago. First misdiagnosed as carcinoma of the renal pelvis, the patient underwent right radical nephroureterectomy. However, postoperative pathological and immunohistochemistry studies finally confirmed the diagnosis of CD. In case 2, a 45-year-old male presented with the chief complaint of anuria. Nephrostomy and renal biopsy indicated lymphoma, following which, antegrade urography and computed tomography urography were performed, which revealed bilateral hydronephrosis and mass lesions around the renal pelvis. Partial resection of the masses and frozen section examination indicated the diagnosis of CD. However, the results of postoperative histopathology and immunohistochemistry combined with serum IgG4 were consistent with IgG4-RD. Both the patients recovered well after drug treatment without recurrence of the diseases. Conclusions Inflammatory pseudotumor of CD and IgG4-RD with kidney involvement are primarily diagnosed by postoperative histopathology and can pose a preoperative diagnostic challenge because these lesions can masquerade as kidney malignancy. Therefore, we recommend core biopsy as a nonnegligible procedure to evaluate renal masses and potentially prevent unnecessary surgical treatment.
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Affiliation(s)
- Bolong Liu
- Department of Urology, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yong Huang
- Department of Urology, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Luying Tang
- Department of Pathology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jiexia Guan
- Department of Pathology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiangfu Zhou
- Department of Urology, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
| | - Hailun Zhan
- Department of Urology, the Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
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Role of 18F-FDG PET/CT in the Management of Patients Affected by HHV-8-Associated Multicentric Castleman’s Disease. HEMATO 2021. [DOI: 10.3390/hemato2020024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Our aim was to investigate the usefulness of 18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in the diagnosis, treatment response evaluation, and follow-up of human herpesvirus-8 (HHV-8)-associated multicentric Castleman’s disease (MCD). Fifteen patients with histologically diagnosis of HHV-8-associated MCD were retrospectively included. For all patients, a 18F-FDG PET/CT scan was performed before any treatment for diagnosis and PET/CT scans after Rituximab (4 cycles) for the evaluation of treatment response; moreover, 22 PET/CT were performed during the follow-up to check disease status. To evaluate treatment response, we applied Deauville criteria. PET/CT findings were compared with other conventional imaging (CI) findings. At diagnosis, 18F-FDG PET/CT showed an increased FDG-uptake in all cases corresponding to lymph nodes and confirming the MCD. The average SUVmax of the FDG avid lesions were 8.75, average lesion-to-liver SUVmax ratio was 3.6, and average lesion-to-blood pool SUVmax ratio was 3.9. After first-line therapy, 18F-FDG PET/CT resulted negative (Deauville score < 4) in seven patients and positive in the remaining eight (Deauville score 4–5). A negative restaging PET/CT was associated with a lower risk of relapse. During follow-up, PET/CT detected the presence of relapse or progression in 5 (23%) cases with an accuracy higher than CI. 18F-FDG PET/CT seems to be an useful tool in studying HHV-8-associated MCD both at diagnosis and during follow-up.
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Abstract
Despite widely available antiretroviral therapy, lymphoma remains the leading cause of death for human immunodeficiency virus (HIV)-infected persons in economically developed countries. Even a few months of drug interruptions can lead to drops in the CD4 cell count, HIV viremia, and an increased risk of lymphoma. Currently, good HIV control facilitates intensive therapies appropriate to the lymphoma, including autologous and even allogeneic hematopoietic stem cell transplantation. Nonetheless, HIV-related lymphomas have unique aspects, including pathogenetic differences driven by the presence of HIV and often coinfection with oncogenic viruses. Future therapies might exploit these differences. Lymphoma subtypes also differ in the HIV-infected population, and the disease has a higher propensity for advanced-stage, aggressive presentation and extranodal disease. Other unique aspects include the need to avoid potential interactions between antiretroviral therapy and chemotherapeutic agents and the need for HIV-specific supportive care such as infection prophylaxis. Overall, the care of these patients has progressed sufficiently that recent guidelines from the American Society of Clinical Oncology advocate the inclusion of HIV-infected patients alongside HIV-negative patients in cancer clinical trials when appropriate. This article examines HIV lymphoma and includes Burkitt lymphoma in the general population.
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24
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Gliga S, Orth HM, Lübke N, Timm J, Luedde T, Jensen BEO. Multicentric Castleman's disease in HIV patients: a single-center cohort diagnosed from 2008 to 2018. Infection 2021; 49:945-951. [PMID: 33945103 PMCID: PMC8094123 DOI: 10.1007/s15010-021-01618-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/23/2021] [Indexed: 11/24/2022]
Abstract
Purpose Castleman’s disease (CD) is a well-established entity but there is a lack of available data regarding the management and therapy of HIV- and HHV-8-positive multicentric CD (MCD). We provide our own single-center experience with HIV-associated MCD. Methods We performed a retrospective, descriptive study on a cohort of patients with MCD, diagnosed and admitted to the infectious diseases or intensive care unit in the University Hospital Düsseldorf between 2008 and 2018. Included patients had a previous or new HIV diagnosis and clinical signs resembling MCD with evidence of HHV-8 replication or histological diagnosis for MCD. Results Nine male patients were included in the study. All patients were treated with Rituximab after diagnosis of MCD, with six of them acquiring resolution of symptoms. Three patients received tocilizumab additionally. Other treatment options included: splenectomy (2/9), valganciclovir (2/9), vincristine and siltuximab (1/9), ruxolitinib and Cytosorb® (2/9). The relapse rate was 44% (4/9) and the survival rate 87.5% after 1 year (8/9) and 71.4% after 3 years (5/7). Conclusion The most effective first-line therapy and retreatment option remains rituximab. The effectiveness of other treatment options like splenectomy or different immunotherapeutic approaches requires confirmation in larger-scale studies.
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Affiliation(s)
- Smaranda Gliga
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany.
| | - Hans Martin Orth
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Nadine Lübke
- Institute of Virology, Heinrich Heine-University, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Jörg Timm
- Institute of Virology, Heinrich Heine-University, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Tom Luedde
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
| | - Björn-Erik Ole Jensen
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Düsseldorf, Heinrich Heine University, Düsseldorf, Germany
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Ramaswami R, Lurain K, Polizzotto MN, Ekwede I, Waldon K, Steinberg SM, Mangusan R, Widell A, Rupert A, George J, Gonçalves PH, Marshall VA, Whitby D, Wang HW, Pittaluga S, Jaffe ES, Little RF, Uldrick TS, Yarchoan R. Characteristics and outcomes of KSHV-associated multicentric Castleman disease with or without other KSHV diseases. Blood Adv 2021; 5:1660-1670. [PMID: 33720337 PMCID: PMC7993110 DOI: 10.1182/bloodadvances.2020004058] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/10/2021] [Indexed: 12/27/2022] Open
Abstract
Kaposi sarcoma (KS)-associated herpesvirus (KSHV)-associated multicentric Castleman disease (MCD) is a relapsing and remitting systemic lymphoproliferative disorder characterized by severe inflammatory symptoms most common among people living with HIV (PLWH). Patients with KSHV-MCD may present with concurrent KSHV-associated diseases, such as KS and/or primary effusion lymphoma (PEL). We evaluated clinical and immunologic characteristics, the effects of concurrent KSHV malignancies, and treatments from the largest prospective natural history study of participants with KSHV-MCD within the United States. Treatment options administered at investigator discretion included high-dose zidovudine with valganciclovir (AZT/VGC), rituximab, or rituximab with liposomal doxorubicin (R-Dox) during KSHV-MCD flares. Survival analyses and prognostic factors were explored for all participants. Sixty-two participants with HIV were enrolled, including 20 with KSHV-MCD alone, 34 with KSHV-MCD and KS, 1 with KSHV-MCD and PEL, and 7 with all KSHV-associated diseases. Forty-four percent of KSHV-MCD diagnoses were made at our institution. Forty-four participants received rituximab-based therapies, 20 of whom had maintenance AZT/VGC or interferon. Participants receiving R-Dox and then maintenance AZT/VGC had the highest 5-year progression-free survival (89%). Cytokine profiles during KSHV-MCD flares did not differ by the presence of concurrent KSHV-associated diseases. The 10-year survival was 71% (95% confidence interval [CI], 56% to 82%) for all participants. A concurrent diagnosis of PEL negatively impacted survival (PEL hazard ratio, 5.4; 95% CI, 1.8 to 16.8). KSHV-MCD is an underdiagnosed condition among PLWH, including those with KS. KSHV-MCD has an excellent prognosis with appropriate treatment. Physicians should be alert for patients with multiple KSHV diseases, which impact optimal treatment and survival outcomes. This study was registered at www.clinicaltrials.gov as #NCT00099073.
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Affiliation(s)
| | | | | | | | | | - Seth M Steinberg
- Biostatistics and Data Management Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | | | | | - Adam Rupert
- AIDS Monitoring Laboratory, Leidos Biomedical Research, Frederick, MD
| | - Jomy George
- Clinical Pharmacokinetics Research Laboratory, National Institutes of Health, Bethesda, MD
| | | | - Vickie A Marshall
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical, Frederick National Laboratory for Cancer Research, Frederick, MD; and
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos Biomedical, Frederick National Laboratory for Cancer Research, Frederick, MD; and
| | - Hao-Wei Wang
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Elaine S Jaffe
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
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Koa B, Borja AJ, Aly M, Padmanabhan S, Tran J, Zhang V, Rojulpote C, Pierson SK, Tamakloe MA, Khor JS, Werner TJ, Fajgenbaum DC, Alavi A, Revheim ME. Emerging role of 18F-FDG PET/CT in Castleman disease: a review. Insights Imaging 2021; 12:35. [PMID: 33709329 PMCID: PMC7952491 DOI: 10.1186/s13244-021-00963-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
Castleman disease (CD) describes a group of rare hematologic conditions involving lymphadenopathy with characteristic histopathology and a spectrum of clinical abnormalities. CD is divided into localized or unicentric CD (UCD) and multicentric CD (MCD) by imaging. MCD is further divided based on etiological driver into human herpesvirus-8-associated MCD, POEMS-associated MCD, and idiopathic MCD. There is notable heterogeneity across MCD, but increased level of pro-inflammatory cytokines, particularly interleukin-6, is an established disease driver in a portion of patients. FDG-PET/CT can help determine UCD versus MCD, evaluate for neoplastic conditions that can mimic MCD clinico-pathologically, and monitor therapy responses. CD requires more robust characterization, earlier diagnosis, and an accurate tool for both monitoring and treatment response evaluation; FDG-PET/CT is particularly suited for this. Moving forward, future prospective studies should further characterize the use of FDG-PET/CT in CD and specifically explore the utility of global disease assessment and dual time point imaging. Trial registration ClinicalTrials.gov, NCT02817997, Registered 29 June 2016, https://clinicaltrials.gov/ct2/show/NCT02817997
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Affiliation(s)
- Benjamin Koa
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA.,Drexel University College of Medicine, Philadelphia, PA, USA
| | - Austin J Borja
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA.,Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Mahmoud Aly
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Sayuri Padmanabhan
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph Tran
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Vincent Zhang
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Sheila K Pierson
- Department of Medicine, Division of Translational Medicine and Human Genetics, University of Pennsylvania, Philadelphia, PA, USA
| | - Mark-Avery Tamakloe
- Department of Medicine, Division of Translational Medicine and Human Genetics, University of Pennsylvania, Philadelphia, PA, USA
| | - Johnson S Khor
- Department of Medicine, Division of Translational Medicine and Human Genetics, University of Pennsylvania, Philadelphia, PA, USA
| | - Thomas J Werner
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - David C Fajgenbaum
- Department of Medicine, Division of Translational Medicine and Human Genetics, University of Pennsylvania, Philadelphia, PA, USA
| | - Abass Alavi
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Mona-Elisabeth Revheim
- Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA. .,Division of Radiology and Nuclear Medicine, Oslo University Hospital, Sognsvannsveien 20, 0372, Oslo, Norway. .,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Problemveien 7, 0316, Oslo, Norway.
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27
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Liu HL, Fan L, Li JY. [Progress in the diagnosis and treatment of Castleman disease]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 41:697-700. [PMID: 32942829 PMCID: PMC7525180 DOI: 10.3760/cma.j.issn.0253-2727.2020.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- H L Liu
- Department of Hematology, the First Affiliated Hospital with Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - L Fan
- Department of Hematology, the First Affiliated Hospital with Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
| | - J Y Li
- Department of Hematology, the First Affiliated Hospital with Nanjing Medical University, Jiangsu Province Hospital, Nanjing 210029, China
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28
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Affiliation(s)
- David C Fajgenbaum
- From the Department of Medicine, Division of Translational Medicine and Human Genetics, Center for Cytokine Storm Treatment and Laboratory (D.C.F.), and the Center for Cellular Immunotherapies and the Parker Institute for Cancer Immunotherapy (C.H.J.), Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Carl H June
- From the Department of Medicine, Division of Translational Medicine and Human Genetics, Center for Cytokine Storm Treatment and Laboratory (D.C.F.), and the Center for Cellular Immunotherapies and the Parker Institute for Cancer Immunotherapy (C.H.J.), Perelman School of Medicine, University of Pennsylvania, Philadelphia
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29
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van den Bogaart L, Cipriano A, Koutsokera A, Manuel O. Understanding rare infections post-lung transplantation. Expert Rev Respir Med 2020; 15:325-338. [PMID: 33106068 DOI: 10.1080/17476348.2021.1843428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Introduction: Lung transplant recipients are at the highest risk of infectious complications among all solid-organ transplant (SOT) recipients. In the current era, many standardized protocols in terms of diagnostic algorithms, prophylaxis, and therapeutic strategies have improved the management of the most common infectious complications. Conversely, diagnosis of rare infections can be particularly challenging and this can delay appropriate treatment.Areas covered: This article will review the epidemiology, clinical presentation, diagnostic and therapeutic management of certain rarely reported viral, fungal, bacterial and parasitic infections in lung transplant recipients.Expert opinion: Once the most frequent infections are excluded, clinical suspicion combined with molecular diagnostic methods such as targeted and broad-spectrum PCRs can allow diagnosis of a rare infection. A multidisciplinary team, including transplant pulmonologists, transplant infectious diseases specialists, microbiologists and pathologists is essential for prompt diagnosis and optimal therapeutic management.
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Affiliation(s)
- Lorena van den Bogaart
- Infectious Diseases Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland.,Transplantation Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Ana Cipriano
- Infectious Disease Department, Centro Hospitalar Do Porto, Porto, Portugal
| | - Angela Koutsokera
- Division of Pulmonology, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Oriol Manuel
- Infectious Diseases Service, Lausanne University Hospital (CHUV), Lausanne, Switzerland.,Transplantation Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland
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30
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Proteomic approaches to investigate gammaherpesvirus biology and associated tumorigenesis. Adv Virus Res 2020; 109:201-254. [PMID: 33934828 DOI: 10.1016/bs.aivir.2020.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The DNA viruses, Kaposi's sarcoma-associated herpesvirus (KSHV) and Epstein-Barr virus (EBV), are members of the gammaherpesvirus subfamily, a group of viruses whose infection is associated with multiple malignancies, including cancer. The primary host for these viruses is humans and, like all herpesviruses, infection with these pathogens is lifelong. Due to the persistence of gammaherpesvirus infection and the potential for cancer formation in infected individuals, there is a driving need to understand not only the biology of these viruses and how they remain undetected in host cells but also the mechanism(s) by which tumorigenesis occurs. One of the methods that has provided much insight into these processes is proteomics. Proteomics is the study of all the proteins that are encoded by a genome and allows for (i) identification of existing and novel proteins derived from a given genome, (ii) interrogation of protein-protein interactions within a system, and (iii) discovery of druggable targets for the treatment of malignancies. In this chapter, we explore how proteomics has contributed to our current understanding of gammaherpesvirus biology and their oncogenic processes, as well as the clinical applications of proteomics for the detection and treatment of gammaherpesvirus-associated cancers.
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31
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Overview of Castleman disease. Blood 2020; 135:1353-1364. [PMID: 32106302 DOI: 10.1182/blood.2019000931] [Citation(s) in RCA: 208] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/03/2020] [Indexed: 01/02/2023] Open
Abstract
Castleman disease (CD) describes a group of at least 4 disorders that share a spectrum of characteristic histopathological features but have a wide range of etiologies, presentations, treatments, and outcomes. CD includes unicentric CD (UCD) and multicentric CD (MCD), the latter of which is divided into idiopathic MCD (iMCD), human herpes virus-8 (HHV8)-associated MCD (HHV8-MCD), and polyneuropathy, organomegaly, endocrinopathy, monoclonal plasma cell disorder, skin changes (POEMS)-associated MCD (POEMS-MCD). iMCD can be further subclassified into iMCD-thrombocytopenia, ascites, reticulin fibrosis, renal dysfunction, organomegaly (iMCD-TAFRO) or iMCD-not otherwise specified (iMCD-NOS). Advances in diagnosis, classification, pathogenesis, and therapy are substantial since the original description of UCD by Benjamin Castleman in 1954. The advent of effective retroviral therapy and use of rituximab in HHV8-MCD have improved outcomes in HHV8-MCD. Anti-interleukin-6-directed therapies are highly effective in many iMCD patients, but additional therapies are required for refractory cases. Much of the recent progress has been coordinated by the Castleman Disease Collaborative Network (CDCN), and further progress will be made by continued engagement of physicians, scientists, and patients. Progress can also be facilitated by encouraging patients to self-enroll in the CDCN's ACCELERATE natural history registry (#NCT02817997; www.CDCN.org/ACCELERATE).
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32
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Toscano M, Cristina S, Cipriano P, Alves AR. Misdiagnosing multicentric Castleman's disease in an HIV-positive patient. ACTA ACUST UNITED AC 2020; 66:401-404. [PMID: 32578769 DOI: 10.1590/1806-9282.66.4.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 11/24/2019] [Indexed: 11/22/2022]
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Re A, Cattaneo C, Montoto S. Treatment management of haematological malignancies in people living with HIV. LANCET HAEMATOLOGY 2020; 7:e679-e689. [PMID: 32791044 DOI: 10.1016/s2352-3026(20)30115-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/15/2020] [Accepted: 04/06/2020] [Indexed: 01/10/2023]
Abstract
Although the incidence of HIV-associated lymphomas decreased after the introduction of effective combination antiretroviral therapy, they became the most common AIDS-related cancer in high-income countries. Moreover, as people living with HIV live longer, a wide range of non-AIDS-related cancer has emerged, including other haematological malignancies. Nonetheless, combination antiretroviral therapy has offered people with HIV the opportunity to receive the same therapies as those provided to the general population, and intensive curative therapies have become the standard. However, several population-based studies highlight a major health-care disparity between people with HIV and those without, with people who are HIV positive often excluded from using innovative therapies and participating in prospective trials. In addition, patients from low-income countries frequently receive inappropriate treatment. The hope is that with increased awareness of effective curative options these disparities will decrease, and people with HIV will be given the same therapeutic opportunities and enrolled in clinical trials alongside patients who are HIV negative.
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Affiliation(s)
- Alessandro Re
- Department of Hematology, Azienda Socio Sanitaria Territoriale Spedali Civili, Brescia, Italy.
| | - Chiara Cattaneo
- Department of Hematology, Azienda Socio Sanitaria Territoriale Spedali Civili, Brescia, Italy
| | - Silvia Montoto
- Department of Haemato-Oncology, St Bartholomew's Hospital, London, UK
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34
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Wu YJ, Su KY. Updates on the diagnosis and management of multicentric Castleman disease. Tzu Chi Med J 2020; 33:22-28. [PMID: 33505874 PMCID: PMC7821823 DOI: 10.4103/tcmj.tcmj_15_20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/13/2020] [Accepted: 04/27/2020] [Indexed: 12/28/2022] Open
Abstract
Multicentric Castleman disease (MCD) is an uncommon systemic lymphoproliferative disease. The diagnosis of this disease is typically challenging and requires collaboration between clinicians and pathologists. Moreover, it is important to exclude other diseases (such as malignancies, autoimmune diseases, and infectious diseases) that have similar clinical manifestations and pathological findings. Patients with untreated severe MCD have high mortality due to devastating cytokine storms. Thus, early diagnosis and prompt treatment is a key imperative. The diagnosis of MCD is based on the clinical signs of systemic inflammation, serological tests, and typical pathological features. In this review article, we provide an overview of MCD with a focus on the emerging evidence pertaining to its diagnosis and treatment.
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Affiliation(s)
- Ya-Ju Wu
- Division of Critical Care Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Kuei-Ying Su
- Division of Rheumatology and Immunology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
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35
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Ramaswami R, Lurain K, Peer CJ, Serquiña A, Wang V, Widell A, Goncalves P, Steinberg SM, Marshall V, George J, Figg WD, Whitby D, Ziegelbauer J, Uldrick TS, Yarchoan R. Tocilizumab in patients with symptomatic Kaposi sarcoma herpesvirus-associated multicentric Castleman disease. Blood 2020; 135:2316-2319. [PMID: 32276276 PMCID: PMC7316216 DOI: 10.1182/blood.2019004602] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
| | | | | | | | | | | | | | - Seth M Steinberg
- Biostatistics and Data Management Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Vickie Marshall
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos-Biomedical, Frederick National Laboratory for Cancer Research, Frederick, MD; and
| | - Jomy George
- Clinical Pharmacokinetics Research Laboratory, National Institutes of Health, Bethesda, MD
| | | | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Leidos-Biomedical, Frederick National Laboratory for Cancer Research, Frederick, MD; and
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36
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Excellent Outcomes with Surgery or Radiotherapy in the Management of Castleman Disease Including a Case of Oligocentric Disease. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2020; 20:685-689. [PMID: 32522439 DOI: 10.1016/j.clml.2020.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Castleman disease (CD) is a rare polyclonal lymphoproliferative disorder of unclear etiology. Standard therapy for unicentric CD is surgical resection. Radiotherapy can be used; however, its efficacy is poorly characterized. PATIENTS AND METHODS We reviewed patients with histologically confirmed CD undergoing definitive local therapy at our institution between 1990 and 2017. Overall survival was determined from the date of diagnosis. Local progression-free survival and distant failure-free survival were determined from the date of first definitive therapy. The Kaplan-Meier method was used to analyze survival. RESULTS Forty-four patients (29 female and 15 male) were identified with a median age at diagnosis of 40 years (range, 14-70 years). Thirty-five (80%) patients received surgery alone, 3 (7%) had surgery followed by radiotherapy, and 6 (14%) had radiotherapy alone. Thirty-nine (89%) patients had a single area of involvement, and 3 (7%) patients had limited regional involvement. Two (5%) patients had multicentric CD and received consolidative radiotherapy. The 3-year overall, local progression-free, and distant failure-free survival were 92%, 100%, and 100%, respectively. No distant failures were observed. The median radiation dose was 3960 cGy (range, 3600-5940 cGy) in 22 fractions (range, 18-33 fractions). CONCLUSIONS Unicentric CD is readily amenable to cure with local therapy. Surgical excision is preferred, but radiation appears to be an effective alternative for patients when surgery is high risk or not feasible. Patients with oligo- or multi-centric CD may experience prolonged disease-free survival with consolidative radiotherapy after partial response to systemic therapy.
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37
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Arenas DJ, Floess K, Kobrin D, Pai RAL, Srkalovic MB, Tamakloe MA, Rasheed R, Ziglar J, Khor J, Parente SAT, Pierson SK, Martinez D, Wertheim GB, Kambayashi T, Baur J, Teachey DT, Fajgenbaum DC. Increased mTOR activation in idiopathic multicentric Castleman disease. Blood 2020; 135:1673-1684. [PMID: 32206779 PMCID: PMC7205815 DOI: 10.1182/blood.2019002792] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 02/03/2020] [Indexed: 12/13/2022] Open
Abstract
Idiopathic multicentric Castleman disease (iMCD) is a rare and poorly understood hematologic disorder characterized by lymphadenopathy, systemic inflammation, cytopenias, and life-threatening multiorgan dysfunction. Interleukin-6 (IL-6) inhibition effectively treats approximately one-third of patients. Limited options exist for nonresponders, because the etiology, dysregulated cell types, and signaling pathways are unknown. We previously reported 3 anti-IL-6 nonresponders with increased mTOR activation who responded to mTOR inhibition with sirolimus. We investigated mTOR signaling in tissue and serum proteomes from iMCD patients and controls. mTOR activation was increased in the interfollicular space of iMCD lymph nodes (N = 26) compared with control lymph nodes by immunohistochemistry (IHC) for pS6, p4EBP1, and p70S6K, known effectors and readouts of mTORC1 activation. IHC for pS6 also revealed increased mTOR activation in iMCD compared with Hodgkin lymphoma, systemic lupus erythematosus, and reactive lymph nodes, suggesting that the mTOR activation in iMCD is not just a product of lymphoproliferation/inflammatory lymphadenopathy. Further, the degree of mTOR activation in iMCD was comparable to autoimmune lymphoproliferative syndrome, a disease driven by mTOR hyperactivation that responds to sirolimus treatment. Gene set enrichment analysis of serum proteomic data from iMCD patients (n = 88) and controls (n = 42) showed significantly enriched mTORC1 signaling. Finally, functional studies revealed increased baseline mTOR pathway activation in peripheral monocytes and T cells from iMCD remission samples compared with healthy controls. IL-6 stimulation augmented mTOR activation in iMCD patients, which was abrogated with JAK1/2 inhibition. These findings support mTOR activation as a novel therapeutic target for iMCD, which is being investigated through a trial of sirolimus (NCT03933904).
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Affiliation(s)
- Daniel J Arenas
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Katherine Floess
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Dale Kobrin
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Ruth-Anne Langan Pai
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Maya B Srkalovic
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Mark-Avery Tamakloe
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Rozena Rasheed
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jasira Ziglar
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Johnson Khor
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Sophia A T Parente
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Sheila K Pierson
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Gerald B Wertheim
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA; and
| | - Taku Kambayashi
- Department of Pathology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Joseph Baur
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - David T Teachey
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, PA; and
| | - David C Fajgenbaum
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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38
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Bernabei L, Waxman A, Caponetti G, Fajgenbaum DC, Weiss BM. AA amyloidosis associated with Castleman disease: A case report and review of the literature. Medicine (Baltimore) 2020; 99:e18978. [PMID: 32028407 PMCID: PMC7015640 DOI: 10.1097/md.0000000000018978] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 11/27/2019] [Accepted: 12/30/2019] [Indexed: 12/01/2022] Open
Abstract
RATIONALE AA amyloidosis (AA) is caused by a wide variety of inflammatory states, but is infrequently associated with Castleman disease (CD). CD describes a heterogeneous group of hematologic disorders that share characteristic lymph node histopathology. CD can present with a solitary enlarged lymph node (unicentric CD, UCD) or with multicentric lymphadenopathy (MCD), constitutional symptoms, cytopenias, and multiple organ dysfunction due to an interleukin-6 driven cytokine storm. PATIENT CONCERNS We are reporting a case of a 26-year-old woman with no significant past medical history who presented with a 3-month history of fatigue and an unintentional 20-pound weight loss. DIAGNOSIS A CT-scan of the abdomen and pelvis revealed hepatosplenomegaly and a mesenteric mass. Congo Red staining from a liver biopsy showed apple-green birefringence and serum markers were suggestive of an inflammatory process. Post-excision examination of the resected mass revealed a reactive lymph node with follicular hyperplasia with kappa and lambda stains showing polyclonal plasmacytosis consistent with CD. INTERVENTIONS The patient underwent surgery to remove the affected lymph node. OUTCOMES IL-6, anemia, leukocytosis, and thrombocytosis resolved or normalized 2 weeks after resection; creatinine normalized 9 months postsurgery. Twenty two months post-surgery her IFN-γ normalized, her fatigue resolved, her proteinuria was reduced by >90% and she had returned to her baseline weight. LESSONS Our case and literature review suggest that patients presenting with UCD or MCD along with organ failure should prompt consideration of concurrent AA amyloidosis.
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Affiliation(s)
| | - Adam Waxman
- Penn Amyloidosis Program, Abramson Cancer Center
| | | | - David C. Fajgenbaum
- Division of Translational Medicine and Human Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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39
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Abstract
Cancer is the leading cause of death for HIV-infected persons in economically developed countries, even in the era of antiretroviral therapy (ART). Lymphomas remain a leading cause of cancer morbidity and mortality for HIV-infected patients and have increased incidence even in patients optimally treated with ART. Even limited interruptions of ART can lead to CD4 cell nadirs and HIV viremia, and increase the risk of lymphoma. The treatment of lymphoma is now similar for HIV-infected patients and the general population: patients with good HIV control can withstand intensive therapies appropriate to the lymphoma, including autologous and even allogeneic hematopoietic stem cell transplantation. Nonetheless, HIV-related lymphomas have unique aspects, including differences in lymphoma pathogenesis, driven by the presence of HIV, in addition to coinfection with oncogenic viruses. These differences might be exploited in the future to inform therapies. The relative incidences of lymphoma subtypes also differ in the HIV-infected population, and the propensity to advanced stage, aggressive presentation, and extranodal disease is higher. Other unique aspects include the need to avoid potential interactions between ART and chemotherapeutic agents, and the need for HIV-specific supportive care, such as infection prophylaxis. Despite these specific challenges for cancer treatment in the setting of HIV infection, the care of these patients has progressed sufficiently that recent guidelines from the American Society of Clinical Oncology advocate the inclusion of HIV-infected patients alongside HIV- patients in cancer clinical trials when appropriate.
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40
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Kaposi sarcoma-associated herpesvirus/human herpesvirus 8-associated lymphoproliferative disorders. Blood 2019; 133:1186-1190. [PMID: 30610029 DOI: 10.1182/blood-2018-11-852442] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 12/27/2018] [Indexed: 11/20/2022] Open
Abstract
Kaposi sarcoma-associated herpesvirus/human herpesvirus 8 is associated with multicentric Castleman disease (MCD) and primary effusion lymphoma (PEL). In MCD, infected B cells, although polyclonal, express a monotypic immunoglobulin Mλ phenotype, probably through editing toward λ light chain in mature B cells. They are considered to originate from pre-germinal center (GC) naive B cells. Both viral and human interleukin-6 contribute to the plasmacytic differentiation of these cells, and viral replication can be observed in some infected cells. PEL cells are clonal B cells considered as GC/post-GC B cells. One can also hypothesize that they originate from the same infected naive B cells and that additional factors could be responsible for their peculiar phenotype.
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41
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Fajgenbaum DC. Novel insights and therapeutic approaches in idiopathic multicentric Castleman disease. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2018; 2018:318-325. [PMID: 30504327 PMCID: PMC6245974 DOI: 10.1182/asheducation-2018.1.318] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Castleman disease (CD) describes a heterogeneous group of hematologic disorders that share characteristic lymph node histopathology. Patients of all ages present with either a solitary enlarged lymph node (unicentric CD) or multicentric lymphadenopathy (MCD) with systemic inflammation, cytopenias, and life-threatening multiple organ dysfunction resulting from a cytokine storm often driven by interleukin 6 (IL-6). Uncontrolled human herpesvirus-8 (HHV-8) infection causes approximately 50% of MCD cases, whereas the etiology is unknown in the remaining HHV-8-negative/idiopathic MCD cases (iMCD). The limited understanding of etiology, cell types, and signaling pathways involved in iMCD has slowed development of treatments and contributed to historically poor patient outcomes. Here, recent progress for diagnosing iMCD, characterizing etio-pathogenesis, and advancing treatments are reviewed. Several clinicopathological analyses provided the evidence base for the first-ever diagnostic criteria and revealed distinct clinical subtypes: thrombocytopenia, anasarca, fever, reticulin fibrosis/renal dysfunction, organomegaly (iMCD-TAFRO) or iMCD-not otherwise specified (iMCD-NOS), which are both observed all over the world. In 2014, the anti-IL-6 therapy siltuximab became the first iMCD treatment approved by the US Food and Drug Administration, on the basis of a 34% durable response rate; consensus guidelines recommend it as front-line therapy. Recent cytokine and proteomic profiling has revealed normal IL-6 levels in many patients with iMCD and potential alternative driver cytokines. Candidate novel genomic alterations, dysregulated cell types, and signaling pathways have also been identified as candidate therapeutic targets. RNA sequencing for viral transcripts did not reveal novel viruses, HHV-8, or other viruses pathologically associated with iMCD. Despite progress, iMCD remains poorly understood. Further efforts to elucidate etiology, pathogenesis, and treatment approaches, particularly for siltuximab-refractory patients, are needed.
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Affiliation(s)
- David C Fajgenbaum
- Division of Translational Medicine & Human Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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42
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Fajgenbaum DC. Novel insights and therapeutic approaches in idiopathic multicentric Castleman disease. Blood 2018; 132:2323-2330. [PMID: 30487129 PMCID: PMC6265649 DOI: 10.1182/blood-2018-05-848671] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/05/2018] [Indexed: 12/12/2022] Open
Abstract
Castleman disease (CD) describes a heterogeneous group of hematologic disorders that share characteristic lymph node histopathology. Patients of all ages present with either a solitary enlarged lymph node (unicentric CD) or multicentric lymphadenopathy (MCD) with systemic inflammation, cytopenias, and life-threatening multiple organ dysfunction resulting from a cytokine storm often driven by interleukin 6 (IL-6). Uncontrolled human herpesvirus-8 (HHV-8) infection causes approximately 50% of MCD cases, whereas the etiology is unknown in the remaining HHV-8-negative/idiopathic MCD cases (iMCD). The limited understanding of etiology, cell types, and signaling pathways involved in iMCD has slowed development of treatments and contributed to historically poor patient outcomes. Here, recent progress for diagnosing iMCD, characterizing etio-pathogenesis, and advancing treatments are reviewed. Several clinicopathological analyses provided the evidence base for the first-ever diagnostic criteria and revealed distinct clinical subtypes: thrombocytopenia, anasarca, fever, reticulin fibrosis/renal dysfunction, organomegaly (iMCD-TAFRO) or iMCD-not otherwise specified (iMCD-NOS), which are both observed all over the world. In 2014, the anti-IL-6 therapy siltuximab became the first iMCD treatment approved by the US Food and Drug Administration, on the basis of a 34% durable response rate; consensus guidelines recommend it as front-line therapy. Recent cytokine and proteomic profiling has revealed normal IL-6 levels in many patients with iMCD and potential alternative driver cytokines. Candidate novel genomic alterations, dysregulated cell types, and signaling pathways have also been identified as candidate therapeutic targets. RNA sequencing for viral transcripts did not reveal novel viruses, HHV-8, or other viruses pathologically associated with iMCD. Despite progress, iMCD remains poorly understood. Further efforts to elucidate etiology, pathogenesis, and treatment approaches, particularly for siltuximab-refractory patients, are needed.
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Affiliation(s)
- David C Fajgenbaum
- Division of Translational Medicine & Human Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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Cheng JL, Cui J, Wang Y, Xu ZZ, Liu F, Liang SB, Tian H. Unicentric Castleman disease presenting as a retroperitoneal peripancreatic mass: A report of two cases and review of literature. World J Gastroenterol 2018; 24:3958-3964. [PMID: 30228787 PMCID: PMC6141333 DOI: 10.3748/wjg.v24.i34.3958] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 07/10/2018] [Accepted: 07/21/2018] [Indexed: 02/06/2023] Open
Abstract
Castleman disease (CD) is a rare disorder of lymph nodes and related tissues. CD generally occurs in the mediastinum, as well as in cervical, retroperitoneal and axillary regions. The disease is classified into two major types: unicentric CD (UCD) and multicentric CD. The occurrence of UCD in the retroperitoneal peripancreatic region is quite rare. We encountered two cases of retroperitoneal peripancreatic UCD in our hospital during the past three years. Following a series of medical examinations, including magnetic resonance imaging, computed tomography, ultrasonography and postoperative histopathological examination, these two patients were diagnosed with UCD, which presented as a retroperitoneal peripancreatic mass. The mass in each patient was completely excised, and no postoperative radiochemotherapy was administered. Both patients recovered well without recurrence during a follow-up period of 30 mo and 8 mo.
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Affiliation(s)
- Jia-Lin Cheng
- Taishan Medical University, Tai’an 271016, Shandong Province, China
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
| | - Jing Cui
- Department of Pathology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
| | - Yi Wang
- Department of Medical Imaging, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
| | - Zong-Zhen Xu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
| | - Feng Liu
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
| | - Shu-Bin Liang
- Taishan Medical University, Tai’an 271016, Shandong Province, China
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
| | - Hu Tian
- Department of General Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, Shandong Province, China
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The unholy trinity of human herpesvirus 8-associated malignancy in a person living with HIV-1. AIDS 2018; 32:404-406. [PMID: 29309348 DOI: 10.1097/qad.0000000000001719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lurain K, Yarchoan R, Uldrick TS. Treatment of Kaposi Sarcoma Herpesvirus-Associated Multicentric Castleman Disease. Hematol Oncol Clin North Am 2018; 32:75-88. [PMID: 29157621 DOI: 10.1016/j.hoc.2017.09.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Kaposi sarcoma herpesvirus (KSHV)-associated multicentric Castleman disease (MCD) is a rare, polyclonal lymphoproliferative disorder characterized by flares of inflammatory symptoms, edema, cytopenias, lymphadenopathy, and splenomegaly. Diagnosis requires a lymph node biopsy. Pathogenesis is related to dysregulated inflammatory cytokines, including human and viral interleukin-6. Rituximab alone or in combination with chemotherapy, such as liposomal doxorubicin, has led to an overall survival of over 90% at 5 years. Experimental approaches to treatment include virus activated cytotoxic therapy with high-dose zidovudine and valganciclovir and targeting human interleukin-6 activity. Despite successful treatment of KSHV-MCD, patients remain at high risk for developing non-Hodgkin lymphomas.
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Affiliation(s)
- Kathryn Lurain
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, Bethesda, MD 20892-1868, USA
| | - Robert Yarchoan
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, Bethesda, MD 20892-1868, USA
| | - Thomas S Uldrick
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, 10 Center Drive, Bethesda, MD 20892-1868, USA.
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Abstract
: The search for the etiologic agent for Kaposi sarcoma led to the discovery of Kaposi sarcoma-associated herpesvirus (KSHV) in 1994. KSHV, also called human herpesvirus-8, has since been shown to be the etiologic agent for several other tumors and diseases, including primary effusion lymphoma (PEL), an extracavitary variant of PEL, KSHV-associated diffuse large B-cell lymphoma, a form of multicentric Castleman disease, and KSHV inflammatory cytokine syndrome. KSHV encodes several genes that interfere with innate and specific immunity, thwart apoptosis, enhance cell proliferation and cytokine production, and promote angiogenesis, and these play important roles in disease pathogenesis. HIV is an important cofactor in Kaposi sarcoma pathogenesis, and widespread use of antiretroviral therapy has reduced Kaposi sarcoma incidence. However, Kaposi sarcoma remains the second most frequent tumor arising in HIV-infected patients in the United States and is particularly common in sub-Saharan Africa. KSHV prevalence varies substantially in different populations. KSHV is secreted in saliva, and public health measures to reduce its spread may help reduce the incidence of KSHV-associated diseases. Although there have been advances in the treatment of Kaposi sarcoma, KSHV-multicentric Castleman disease, and PEL, improved therapies are needed, especially those that are appropriate for Kaposi sarcoma in resource-poor regions.
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