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Chen BJ, Hsieh SM, Hsieh TH, Jhuang JY, Kao YC. DUSP22-rearranged primary cutaneous CD30-positive T-cell lymphoproliferative disorders and adult T-cell leukemia/lymphoma frequently share the LEF1+/TIA1- immunophenotype. Hum Pathol 2024; 150:58-66. [PMID: 38971328 DOI: 10.1016/j.humpath.2024.07.002] [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: 03/24/2024] [Revised: 06/30/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
DUSP22 rearrangements are genetic alterations observed in a subset of systemic anaplastic large cell lymphoma (S-ALCL), primary cutaneous anaplastic large cell lymphoma (C-ALCL), and lymphomatoid papulosis (LyP). Previous investigations have shown that the LEF1+/TIA1- immunoprofile and MSC E116K mutations are highly associated with DUSP22 rearrangement in ALCL. However, the existing literature primarily focuses on S-ALCL. Our understanding of the LEF1/TIA1 immunoprofile and MSC mutation status in C-ALCL/LyP is still limited. In this study, we aimed to assess LEF1/TIA1 expression and MSC mutations in a cohort of 23 C-ALCL/LyP cases, along with a control group of histological mimickers. DUSP22 rearrangements were detected by fluorescence in situ hybridization in eight cases (6/10 C-ALCL, 2/13 LyP). We found LEF1 expression in five out of eight (63%) DUSP22-rearranged cases (3/6 C-ALCL, 2/2 LyP), and none of the 15 cases lacking DUSP22 rearrangements. Furthermore, we also found frequent LEF1 expression in adult T-cell leukemia/lymphoma (ATLL; 10 of 11, 91%) within the control group. TIA1 expression was consistently negative in all DUSP22-rearranged C-ALCL/LyP and ATLL cases tested. MCS E116K mutation was identified in one of five DUSP22-rearranged C-ALCL cases. RNA sequencing of a DUSP22-rearranged C-ALCL revealed a novel DUSP22::SNHG fusion coexisting with a CD58::WNT2B fusion. In conclusion, our findings demonstrated a lower rate of LEF1 expression in DUSP22-rearranged C-ALCL/LyP compared to previous reports that predominantly focused on S-ALCL. Moreover, we observed that the majority of ATLL cases also expressed LEF1, suggesting that the LEF1+/TIA1- immunoprofile does not differentiate DUSP22-rearranged C-ALCL/LyP from ATLL.
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MESH Headings
- Humans
- Dual-Specificity Phosphatases/genetics
- Mitogen-Activated Protein Kinase Phosphatases/genetics
- Male
- Female
- Middle Aged
- Lymphoid Enhancer-Binding Factor 1/genetics
- Lymphoid Enhancer-Binding Factor 1/analysis
- Adult
- Aged
- Gene Rearrangement
- Skin Neoplasms/genetics
- Skin Neoplasms/pathology
- Immunophenotyping
- Ki-1 Antigen/genetics
- Ki-1 Antigen/analysis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/analysis
- Aged, 80 and over
- In Situ Hybridization, Fluorescence
- Mutation
- Lymphomatoid Papulosis/genetics
- Lymphomatoid Papulosis/pathology
- Young Adult
- Phenotype
- Lymphoma, Primary Cutaneous Anaplastic Large Cell/genetics
- Lymphoma, Primary Cutaneous Anaplastic Large Cell/pathology
- Immunohistochemistry
- Lymphoma, Large-Cell, Anaplastic/genetics
- Lymphoma, Large-Cell, Anaplastic/pathology
- Lymphoma, Large-Cell, Anaplastic/immunology
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Affiliation(s)
- Bo-Jung Chen
- Department of Pathology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan; Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.
| | - Shu-Min Hsieh
- Department of Clinical Pathology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan.
| | - Tsung-Han Hsieh
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, 110, Taiwan.
| | - Jie-Yang Jhuang
- Department of Pathology, MacKay Memorial Hospital, Taipei, 10449, Taiwan; Department of Medicine, School of Medicine, MacKay Medical College, New Taipei City, 252, Taiwan.
| | - Yu-Chien Kao
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan; Department of Pathology, Taipei Medical University Hospital, Taipei, 110, Taiwan; Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 704, Taiwan.
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2
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Oishi N, Ahmed R, Feldman AL. Updates in the Classification of T-cell Lymphomas and Lymphoproliferative Disorders. Curr Hematol Malig Rep 2023; 18:252-263. [PMID: 37870698 PMCID: PMC10834031 DOI: 10.1007/s11899-023-00712-9] [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] [Accepted: 09/07/2023] [Indexed: 10/24/2023]
Abstract
PURPOSE OF REVIEW Mature T/NK-cell neoplasms comprise a heterogeneous group of diseases with diverse clinical, histopathologic, immunophenotypic, and molecular features. A clinically relevant, comprehensive, and reproducible classification system for T/NK-cell neoplasms is essential for optimal management, risk stratification, and advancing understanding of these diseases. Two classification systems for lymphoid neoplasms were recently introduced: the 5th edition of World Health Organization classification (WHO-HAEM5) and the 2022 International Consensus Classification (ICC). In this review, we summarize the basic framework and updates in the classification of mature T/NK-cell neoplasms. RECENT FINDINGS WHO-HAEM5 and ICC share basic concepts in classification of T/NK-cell neoplasms, emphasizing integration of clinical presentation, pathology, immunophenotype, and genetics. Major updates in both classifications include unifying nodal T-follicular helper-cell lymphomas into a single entity and establishing EBV-positive nodal T/NK-cell lymphoma as a distinct entity. However, some differences exist in taxonomy, terminology, and disease definitions. The recent classifications of mature T/NK-cell neoplasms are largely similar and provide new insights into taxonomy based on integrated clinicopathologic features.
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Affiliation(s)
- Naoki Oishi
- Department of Pathology, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Reham Ahmed
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Andrew L Feldman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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3
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Montes-Moreno S. Primary cutaneous CD30+ lymphoproliferative disorders with DUSP22 translocation. PATHOLOGIE (HEIDELBERG, GERMANY) 2023; 44:136-139. [PMID: 38010388 DOI: 10.1007/s00292-023-01258-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/19/2023] [Indexed: 11/29/2023]
Abstract
Primary cutaneous CD30+ lymphoproliferative disorders (LPD) encompass a broad category of clonal T cell proliferations with varied clinical presentations. Classically, lymphomatoid papulosis (LyP) and primary cutaneous anaplastic large cell lymphoma (ALCL) have been recognized as distinct clinicopathological entities according to their differing clinical features. Recently, a subset of LyP and both cutaneous and systemic ALCL have been shown to carry a DUSP22 translocation [1-3], a defining molecular feature for the novel entity "LyP with DUSP22t" [1]. In cutaneous biopsies, both primary cutaneous DUSP22-translocated ALCL and LyP with DUSP22 rearrangements are characterized by a biphasic pattern with significant small cell epidermotropism. A distinct protein expression profile with preserved T Cell Receptor (TCR) expression, positivity for CD30, LEF1, HLA, and CD58, and negativity for cytotoxic marker expression as well as phospho-STAT3 protein is consistently found in these cases.
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Affiliation(s)
- Santiago Montes-Moreno
- Anatomic Pathology Service and Translational Hematopathology Lab, Hospital Universitario Marques de Valdecilla, Universidad de Cantabria, IDIVAL, Santander, Spain.
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4
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Fadl A, Oishi N, Shi M, Dasari S, Ansell SM, Ketterling RP, Feldman AL. Anaplastic large cell lymphomas with equivocal DUSP22 FISH results: recommendations for clinical reporting and diagnostic evaluation. Hum Pathol 2023; 141:6-14. [PMID: 37633531 PMCID: PMC10840904 DOI: 10.1016/j.humpath.2023.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/15/2023] [Accepted: 08/21/2023] [Indexed: 08/28/2023]
Abstract
Anaplastic large cell lymphoma (ALCL), one of the most common T-cell lymphomas, shows unifying pathological features but is clinically and genetically heterogeneous. One genetic subgroup, characterized by recurrent DUSP22 rearrangements (R), has distinct morphologic, immunophenotypic, and molecular features and can be identified in routine pathology practice using a breakapart (BAP) fluorescence in situ hybridization (FISH) probe. However, some cases show equivocal BAP-FISH findings (BAP-FISHEQ) and the features of these cases are poorly understood. Here, we sought to characterize DUSP22 BAP-FISHEQ ALCLs further. First, we applied an immunohistochemistry (IHC) algorithm using TIA1, pSTAT3Y705, and LEF1, which can predict DUSP22-R with high accuracy. Among 37 BAP-FISHEQ ALCLs, 18 (49%) were IHC-algorithm positive (IHCPOS), 8 (21%) were IHC-algorithm negative (IHCNEG), and 11 (30%) were IHCEQ. In 32 BAP-FISHEQ cases, we also applied a dual-color, dual-fusion (D-FISH) probe for t(6;7)(p25.3;q32.3), which accounts for 45% of DUSP22-R ALCLs. Among BAP-FISHEQ cases, D-FISH was positive in 10/18 IHCPOS cases (56%), 0/9 IHCEQ cases (0%), and 0/5 IHCNEG cases (0%). Median survival in BAP-FISHEQ ALCLs was 105 months, intermediate between BAP-FISHPOS ALCLs (median survival not reached) and BAP-FISHNEG ALCLs (19 months). Thus, DUSP22 BAP-FISHEQ ALCLs are clinicopathologically heterogeneous, likely due to an admixture of cases with an unbalanced DUSP22-R and cases with focal deletions without rearrangement. For clinical reporting, we recommend that DUSP22 BAP-FISHEQ ALCLs be reported as equivocal, and not be grouped with BAP-FISHPOS ALCLs. Clinical adoption of an IHC algorithm, possibly supplemented by t(6; 7) D-FISH, could facilitate genetic subtyping in about two-thirds of BAP-FISHEQ ALCLs.
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Affiliation(s)
- Amr Fadl
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905 USA
| | - Naoki Oishi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905 USA; Department of Pathology, University of Yamanashi, Chuo, Yamanashi Prefecture, Japan
| | - Min Shi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905 USA
| | - Surendra Dasari
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, 55905 USA
| | | | - Rhett P Ketterling
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905 USA
| | - Andrew L Feldman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905 USA.
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5
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Falini B, Lazzi S, Pileri S. A comparison of the International Consensus and 5th WHO classifications of T-cell lymphomas and histiocytic/dendritic cell tumours. Br J Haematol 2023; 203:369-383. [PMID: 37387351 DOI: 10.1111/bjh.18940] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/17/2023] [Accepted: 06/05/2023] [Indexed: 07/01/2023]
Abstract
Since the publication in 2017 of the revised 4th Edition of the World Health Organization (WHO) classification of haematolymphoid tumours, here referred to as WHO-HAEM4, significant clinicopathological, immunophenotypic and molecular advances have been made in the field of lymphomas, contributing to refining the diagnostic criteria of several diseases, upgrading entities previously defined as provisional and identifying new entities. This process has resulted in two recent classification proposals of lymphoid neoplasms: the International Consensus Classification (ICC) and the 5th edition of the WHO classification (WHO-HAEM5). In this paper, we review and compare the two classifications in terms of diagnostic criteria and entity definition, focusing on T-cell lymphomas and histiocytic/dendritic cell tumours. Moreover, we update the genetic data of the various pathological entities. The main goal is to provide a tool to facilitate the work of the pathologists, haematologists and researchers involved in the diagnosis and treatment of these haematological malignancies.
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Affiliation(s)
- Brunangelo Falini
- Institute of Haematology and CREO, University and Santa Maria della Misericordia Hospital of Perugia, Perugia, Italy
| | - Stefano Lazzi
- Department of Medical Biotechnology, Institute of Pathology, University of Siena, Siena, Italy
| | - Stefano Pileri
- European Institute of Oncology IRCCS, Milan, Italy
- Diatech Pharmacogenetics, Jesi, Italy
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6
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Miyagaki T, Inoue N, Kamijo H, Boki H, Takahashi-Shishido N, Suga H, Shimauchi T, Kiyohara E, Hirai Y, Yonekura K, Takeuchi K, Sugaya M. Prognostic factors for primary cutaneous anaplastic large-cell lymphoma: a multicentre retrospective study from Japan. Br J Dermatol 2023; 189:612-620. [PMID: 37539944 DOI: 10.1093/bjd/ljad266] [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: 03/29/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND The clinical implications of DUSP22 rearrangement and the association between DUSP22 rearrangement and lymphoid enhancer-binding factor 1 (LEF1) expression pattern in CD30+ cutaneous T-cell lymphomas (CTCLs) are unknown. OBJECTIVES This study assessed the incidence of DUSP22 rearrangement and its clinical and immunohistochemical implications in primary cutaneous anaplastic large-cell lymphoma (pcALCL), lymphomatoid papulosis (LyP) and CD30+ mycosis fungoides with large-cell transformation (MF-LCT), focusing especially on the association with the prognosis and LEF1 expression pattern. Prognostic factors of pcALCL were also examined. METHODS We conducted a multicentre retrospective study including patients with pcALCL, LyP and MF-LCT diagnosed between 1 January 2000 and 31 December 2018 in Japan. Baseline data at diagnosis, treatment course, overall survival (OS) and disease-specific survival (DSS) were collected. Immunohistochemical analysis and fluorescence in situ hybridization to detect DUSP22 and TP63 rearrangement were performed using skin samples at diagnosis. We investigated the association between staining pattern and these gene rearrangements. We also assessed the prognostic implications of clinical status, immunohistochemical results and the presence of gene rearrangements. RESULTS DUSP22 rearrangement was detected in 50% (11 of 22) of cases of pcALCL, but not in any cases with LyP (0 of 14) or MF-LCT (0 of 11). TP63 rearrangement was not detected in any case. Clinically, patients with pcALCL with DUSP22 rearrangement did not tend to develop ulcers (P = 0.081). There was no significant association between DUSP22 rearrangement status and immunohistochemical results, including LEF1 expression pattern. T3 stage and the presence of lower limb lesions were significantly associated with shorter OS (P = 0.012 and 0.021, respectively, by log-rank test). Similarly, they were significantly correlated with shorter DSS (P = 0.016 and 0.0001, respectively). CONCLUSIONS DUSP22 rearrangement is relatively specific to pcALCL among CD30+ CTCLs in Japan. Although the LEF1 expression pattern was not related to DUSP22 rearrangement in pcALCL, there was no rearrangement if LEF1 was not expressed. We confirmed that T3 stage and the lower limb involvement were significantly associated with decreased OS and DSS. The presence or absence of lower limb lesions should be included in T-stage subcategorization in the future.
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Affiliation(s)
- Tomomitsu Miyagaki
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
- Department of Dermatology, St Marianna University School of Medicine, Kanagawa, Japan
| | - Norihito Inoue
- Pathology Project for Molecular Targets, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hiroaki Kamijo
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hikari Boki
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | | | - Hiraku Suga
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Takatoshi Shimauchi
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Eiji Kiyohara
- Department of Dermatology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Yoji Hirai
- Department of Dermatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama,Japan
| | - Kentaro Yonekura
- Department of Dermatology, Imamura General Hospital, Kagoshima, Japan
| | - Kengo Takeuchi
- Pathology Project for Molecular Targets, The Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Makoto Sugaya
- Department of Dermatology, International University of Health and Welfare, Chiba, Japan
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7
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Ud Din N, Rahim S, Ansar Z, Ahmed A, Ahmad Z. Anaplastic Large-cell Lymphoma Involving Gastrointestinal Tract: A Clinicopathologic Study of 25 Cases of a Rare Tumor at a Rare Site. Int J Surg Pathol 2023; 31:1195-1205. [PMID: 36514288 DOI: 10.1177/10668969221137518] [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] [Indexed: 12/15/2022]
Abstract
Background. Anaplastic large-cell lymphoma (ALCL) is an uncommon lymphoma divided into anaplastic lymphoma kinase (ALK) positive, ALK negative, and breast implant-associated (BIA) ALCL. Gastrointestinal tract involvement is very rare and may be difficult to diagnose. Its recognition is crucial as prognostic ramifications are different. Objectives. To describe clinicopathological features of ALCL involving the gastrointestinal tract. Materials and Methods. Slides were reviewed. Diagnosis was confirmed. Histological and immunohistochemical features were described. Results.Twenty-five tumors were diagnosed during the study period. Ages ranged from 14 to 65 years (mean 41 years). Mean age for ALK-negative and ALK-positive patients were 49 and 17 years, respectively. Twenty-one were males and 4 were females. Eighteen involved small intestine. Mean tumor size was 4.2 cm. All showed diffuse sheets of large anaplastic cells with pleomorphic nuclei, abundant pink cytoplasm, and strong positivity for CD30. Epithelial membrane antigen was positive in 17 tumors and keratin was negative in all. Eighteen tumors were ALK negative. Out of 14 patients with follow-up, 12 died within a few months of diagnosis. Seven had stage IE, 5 had stage IIE, and 2 had stage IV disease. Two patients were alive at 35 and 60 months. Twelve received chemotherapy. Conclusion. A marked male predominance was noted. Small intestine was the commonest site of involvement. Majority were ALK negative. ALK-negative tumors occurred in older patients and ALK positive in younger patients. Prognosis was poor. ALCL should be included in the differential diagnosis of anaplastic epithelioid cell neoplasms in the gastrointestinal tract.
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Affiliation(s)
- Nasir Ud Din
- Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan
| | - Shabina Rahim
- Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan
| | - Zeeshan Ansar
- Section of Molecular Pathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan
| | - Arsalan Ahmed
- Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan
| | - Zubair Ahmad
- Section of Histopathology, Department of Pathology and Laboratory Medicine, Aga Khan University Hospital, Karachi, Pakistan
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Piccaluga PP, Khattab SS. A Comparison of the Fifth World Health Organization and the International Consensus Classifications of Mature T-Cell Lymphomas. Int J Mol Sci 2023; 24:14170. [PMID: 37762472 PMCID: PMC10532420 DOI: 10.3390/ijms241814170] [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: 07/31/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Peripheral T-cell lymphomas (PTCLs) are a rare subset of non-Hodgkin lymphomas that often carry significant difficulty in diagnosis and classification because of their rarity and biological complexity. Previous editions of the World Health Organization (WHO) classifications of hemopoietic neoplasms in 2001, 2008, and 2017 aimed to standardize hemopoietic neoplasm diagnosis in general. Since then, crucial clinico-pathological, immunophenotypic, and recent molecular discoveries have been made in the field of lymphomas, contributing to refining diagnostic criteria of several diseases, upgrading entities previously defined as provisional, and identifying new entities. In 2022, two different models were proposed to classify hematolymphoid neoplasms: the 5th edition of the WHO classification (WHO-HAEM5) and the International Consensus Classification (ICC). Of note, a common nosography is mandatory to ensure progress in health science and ensure the basis for a real precision medicine. In this article, the authors summarized the main differences with the previous fourth WHO edition and reviewed the main discrepancies between the two newest classifications, as far as PTCLs are concerned.
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Affiliation(s)
- Pier Paolo Piccaluga
- Biobank of Research, IRCCS Azienda Opedaliera-Universitaria di Bologna, 40138 Bologna, Italy
- Department of Medical and Surgical Sciences, Bologna University School of Medicine, 40138 Bologna, Italy
| | - Shaimaa S. Khattab
- Medical Research Institute, Hematology Department, Alexandria University, Alexandria 5310002, Egypt;
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9
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Osakada A, Fujimoto M, Ueshima C, Kaku Y, Nishikori M, Inoue N, Takeuchi K, Haga H. Constant small-cell changes and variable LEF1 expression in DUSP22-rearranged primary cutaneous anaplastic large-cell lymphoma: Analysis of the repeated biopsies of three patients. Pathol Int 2023; 73:456-462. [PMID: 37530485 DOI: 10.1111/pin.13360] [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: 05/08/2023] [Accepted: 07/15/2023] [Indexed: 08/03/2023]
Abstract
DUSP22-rearranged primary cutaneous anaplastic large-cell lymphoma (pcALCL) has a biphasic histological pattern defined by large dermal atypical lymphocytes and epidermotropic small lymphocytes resembling pagetoid reticulosis, but the positivity rate of the biphasic pattern in DUSP22-rearranged pcALCL is unknown. Immunohistochemically, LEF1 expression in >75% of tumor cells is associated with DUSP22-rearrangement (DUSP22-R) in systemic ALCL. However, whether this association applies to pcALCL remains unclear. To analyze these pathological clues for screening DUSP22-R, we reviewed 11 skin biopsies from three patients with DUSP22-rearranged pcALCL. All specimens showed a biphasic pattern, of which three showed nonpagetoid infiltration of the epidermis. In all lesions, small-cell changes of tumor cells were observed not only within the epidermis but also under the epidermis. LEF1 positivity rates varied by lesion (range: 30%-90%, mean: 59.6%) with only three patients expressing LEF1 in more than 75% of tumor cells. In conclusion, the biphasic pattern was a constant finding in DUSP22-rearranged pcALCL, but it was not always pagetoid reticulosis-like. The recognition of small-cell change outside the epidermis may be helpful in diagnosing DUSP22-rearranged pcALCL. However, LEF1 expression was variable and its diagnostic usefulness may be limited.
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Affiliation(s)
- Akio Osakada
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Masakazu Fujimoto
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Chiyuki Ueshima
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Yo Kaku
- Department of Dermatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Momoko Nishikori
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto, Japan
| | - Norihito Inoue
- Division of Pathology, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Kengo Takeuchi
- Division of Pathology, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
- Pathology Project for Molecular Targets, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hironori Haga
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
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10
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Drieux F, Lemonnier F, Gaulard P. How molecular advances may improve the diagnosis and management of PTCL patients. Front Oncol 2023; 13:1202964. [PMID: 37427095 PMCID: PMC10328093 DOI: 10.3389/fonc.2023.1202964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 05/22/2023] [Indexed: 07/11/2023] Open
Abstract
Peripheral T-cell lymphomas (PTCL) comprised more than 30 rare heterogeneous entities, representing 10 to 15% of adult non-Hodgkin lymphomas. Although their diagnosis is still mainly based on clinical, pathological, and phenotypic features, molecular studies have allowed for a better understanding of the oncogenic mechanisms involved and the refinement of many PTCL entities in the recently updated classifications. The prognosis remains poor for most entities (5-year overall survival < 30%), with current conventional therapies based on anthracyclin-based polychemotherapy regimen, despite many years of clinical trials. The recent use of new targeted therapies appears to be promising for relapsed/refractory patients, such as demethylating agents in T-follicular helper (TFH) PTCL. However further studies are needed to evaluate the proper combination of these drugs in the setting of front-line therapy. In this review, we will summarize the oncogenic events for the main PTCL entities and report the molecular targets that have led to the development of new therapies. We will also discuss the development of innovative high throughput technologies that aid the routine workflow for the histopathological diagnosis and management of PTCL patients.
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Affiliation(s)
- Fanny Drieux
- Service d’Anatomie et de Cytologie Pathologiques, INSERM U1245, Centre Henri Becquerel, Rouen, France
| | - François Lemonnier
- Unité hémopathies Lymphoïdes, Hôpitaux Universitaires Henri Mondor, Assistance Publique des Hôpitaux de Paris, Créteil, France
- Institut Mondor de Recherche Biomédicale, INSERM U955, Université Paris Est Créteil, Créteil, France
| | - Philippe Gaulard
- Institut Mondor de Recherche Biomédicale, INSERM U955, Université Paris Est Créteil, Créteil, France
- Département de Pathologie, Hôpitaux Universitaires Henri Mondor, Assistance Publique des Hôpitaux de Paris, Créteil, France
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11
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Qiu L, Tang G, Li S, Vega F, Lin P, Wang SA, Wang W, Iyer SP, Malpica L, Miranda RN, Konoplev S, Tang Z, Fang H, Medeiros LJ, Xu J. DUSP22 rearrangement is associated with a distinctive immunophenotype but not outcome in patients with systemic ALK-negative anaplastic large cell lymphoma. Haematologica 2023; 108:1604-1615. [PMID: 36453104 PMCID: PMC10230410 DOI: 10.3324/haematol.2022.281222] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/07/2022] [Indexed: 08/28/2023] Open
Abstract
DUSP22 rearrangement (R) has been associated with a favorable outcome in systemic ALK-negative anaplastic large cell lymphoma (ALCL). However, a recent study found that patients with DUSP22-R ALK-negative ALCL have a poorer prognosis than was reported initially. In this study, we compared the clinicopathological features and outcomes of patients with ALKnegative ALCL with DUSP22-R (n=22) versus those without DUSP22-R (DUSP22-NR; n=59). Patients with DUSP22-R ALCL were younger than those with DUSP22-NR neoplasms (P=0.049). DUSP22-R ALK-negative ALCL cases were more often positive for CD15, CD8, and less frequently expressed pSTAT3Tyr705, PD-L1, granzyme B and EMA (all P<0.05). TP63 rearrangement (TP63-R) was detected in three of the 66 (5%) ALK-negative ALCL cases tested and none of these cases carried the DUSP22-R. Overall survival of patients with DUSP22-R ALCL was similar to that of the patients with DUSP22-NR neoplasms regardless of International Prognostic Index score, stage, age, or stem cell transplantation status (all P>0.05), but was significantly shorter than that of the patients with ALK-positive ALCL (median overall survival 53 months vs. undefined, P=0.005). Five-year overall survival rates were 40% for patients with DUSP22-R ALCL versus 82% for patients with ALK-positive ALCL. We conclude that DUSP22-R neoplasms represent a distinctive subset of ALK-negative ALCL. However, in this cohort DUSP22-R was not associated with a better clinical outcome. Therefore, we suggest that current treatment guidelines for this subset of ALK-negative ALCL patients should not be modified at present.
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Affiliation(s)
- Lianqun Qiu
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Guilin Tang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Shaoying Li
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Francisco Vega
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Pei Lin
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Sa A Wang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Wei Wang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Swaminathan P Iyer
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center
| | - Luis Malpica
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center
| | - Roberto N Miranda
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Sergej Konoplev
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Zhenya Tang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Hong Fang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - L Jeffrey Medeiros
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center
| | - Jie Xu
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center.
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12
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Díaz de la Pinta FJ, Moreno MR, Salgado RN, García NC, Santonja C, Buira SP, Piris MA, Requena L, Manso R, Rodríguez-Pinilla SM. Anaplastic Large Cell Lymphomas With The 6p25.3 Rearrangement Are A Heterogeneous Group Of Tumours With A Diverse Molecular Background. Hum Pathol 2023:S0046-8177(23)00102-8. [PMID: 37127078 DOI: 10.1016/j.humpath.2023.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/03/2023]
Abstract
ALK-negative anaplastic large cell lymphoma (ALCL) cases with 6p25.3 rearrangement are characterized by peculiar morphological and immunohistochemical features compare to 6p25.3-negative ALK-negative ALCL cases. A subgroup of 6p25.3-positive ALK-negative ALCL cases show the t(6,7)(p25.3;q32.3) rearrangement. Aims: To analyse the differences between 6p25.3-rearranged cases with and without t(6,7)(p25.3;q32.3). Using RNA-sequencing we studied a series of 17 samples showing 6p25.3-rearrangement, identified by FISH, consisting of seven systemic and eight primary cutaneous cases including two examples of secondary skin involvement by systemic ALCL. RNA-sequencing exclusively detected a translocation involving a gene in the 6p25.3 region (either IRF4 or DUSP22) in 7/14 cases (50%). In six of these seven cases the partner proved to be the LINC-PINT region in chromosome 7, while an EXOC2::DUSP22 rearrangement was found in one case. All cases but one were primary cutaneous ALCLs. They all were CD3 positive and BCL2 negative, while most of them expressed p-STAT3. On the contrary, cases without the t(6,7)(p25.3;q32.3) were mainly systemic (71%, 5/7) against just two pcALCL. In general, they lose CD3 (50% positive) and p-STAT3 (25% positive) expression, being all of them BCL2 positive. Moreover, in 60% of them other gene fusions were found. At the transcriptional level, they were characterized by the overexpression of TCF3 (TCF7L1/E2A), DLL3, CD58 and BCL2 genes. 75%(6/8) of pcALCL with 6p25.3 rearrangement featured the so-called "biphasic morphologic pattern, which was not found in cutaneous involvement from systemic ALCL. 83% (5/6) of the pcALCL cases with the "biphasic morphologic pattern" showed the t(6,7)(p25.3;q32.3) rearrangement. ALK-negative ALCL cases with 6p25.3 rearrangement are a subgroup of tumours that are heterogeneous with respect to the presence or absence of the t(6,7)(p25.3;q32.3) translocation.
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Affiliation(s)
| | | | - Rocío Nieves Salgado
- Haematology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | | | - Carlos Santonja
- Pathology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Sandra Pérez Buira
- Pathology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Miguel A Piris
- Pathology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - Luis Requena
- Dermatology Department, Hospital Universitario, Fundación Jiménez Díaz, Madrid, Spain
| | - Rebeca Manso
- Pathology Department, Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain.
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Oishi N, Feldman AL. Current Concepts in Nodal Peripheral T-Cell Lymphomas. Surg Pathol Clin 2023; 16:267-285. [PMID: 37149360 DOI: 10.1016/j.path.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
This review summarizes the current understanding of mature T-cell neoplasms predominantly involving lymph nodes, including ALK-positive and ALK-negative anaplastic large cell lymphomas, nodal T-follicular helper cell lymphoma, Epstein-Barr virus-positive nodal T/NK-cell lymphoma, and peripheral T-cell lymphoma (PTCL), not otherwise specified. These PTCLs are clinically, pathologically, and genetically heterogeneous, and the diagnosis is made by a combination of clinical information, morphology, immunophenotype, viral positivity, and genetic abnormalities. This review summarizes the pathologic features of common nodal PTCLs, highlighting updates in the fifth edition of the World Health Organization classification and the 2022 International Consensus Classification.
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14
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Yuan CT, Cheng AL, Hou HA. Primary effusion anaplastic large cell lymphoma with indolent clinical course and IRF4/DUSP22 rearrangement: a case report expanding the spectrum of effusion-based lymphoma. Virchows Arch 2023; 482:641-645. [PMID: 35984488 DOI: 10.1007/s00428-022-03385-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 11/25/2022]
Abstract
Effusion-based lymphomas arising from pleural cavities are mostly B cell lymphomas. Non-B cell origins are very rare. These non-B cell lymphomas are usually disseminated and aggressive, and their underlying genetic changes are indeterminate. Here, we reported the first case of primary effusion anaplastic large cell lymphoma (ALCL) with exclusive involvement of a single body cavity, indolent initial presentation, and IRF4/DUSP22 rearrangement. This 73-year-old man had been in his usual health until he presented with exertional dyspnea for 1 month. Physical examination and whole-body imaging indicated isolated left pleural effusion without lymphadenopathies or tumors. Thoracentesis revealed anaplastic large lymphoid cells that were CD30 + , CD3 - , CD8 + , TIA1 + , CD138 - , Epstein-Barr virus-encoded small RNA - , human herpesvirus 8 - , and ALK - . Fluorescence in situ hybridization exhibited IRF4/DUSP22 rearrangement. A primary effusion ALK-negative ALCL was diagnosed. There was no evident progression without chemotherapeutics until 4 months after the diagnosis. Our findings expanded the spectrum of effusion-based lymphoma. Recognition of this disease could prevent misdiagnosis and guide treatment strategies for patients.
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Affiliation(s)
- Chang-Tsu Yuan
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Pathology, National Taiwan University Cancer Center, Taipei, Taiwan
- Department of Pathology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ann-Lii Cheng
- Department of Oncology, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Hsin-An Hou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, No.7, Chung Shan S. Rd, Zhongzheng Dist, 100225, Taipei City, Taiwan.
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JAK/STAT3 Signaling Activation Related to Distinct Clinicopathologic Features in Systemic ALK - Anaplastic Large Cell Lymphomas : New Insights into Their Heterogeneity. Am J Surg Pathol 2023; 47:55-64. [PMID: 36315833 DOI: 10.1097/pas.0000000000001995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Systemic anaplastic lymphoma kinase (ALK)-negative anaplastic large cell lymphoma (ALCL) is a group of heterogenous CD30 + T-cell non-Hodgkin lymphomas. Previous studies have highlighted the importance of JAK/STAT3 signaling activation in the molecular pathogenesis of ALK - ALCLs. In the present study, we aimed to establish a potential relationship between JAK/STAT3 signaling activation and clinicopathologic features in ALK - ALCLs, and further recognize the heterogenous nature of these neoplasms. Immunohistochemistry staining of the phosphorylated-STAT3 (p-STAT3) and dual-specificity protein phosphatase 22 ( DUSP22 ) gene rearrangement analysis were performed. Forty-five cases of ALK - ALCL were divided into 3 groups, including 9 DUSP22 -rearranged ALCLs, 21 p-STAT3 + double-negative (DN) ALCLs (both ALK and DUSP22 rearrangement negative), and 15 p-STAT3 - DN-ALCLs. Morphologically, p-STAT3 + DN-ALCLs exhibited sheet-like neoplastic cells and sometimes showed large pleomorphic cells scattered in a lymphocyte-rich background more frequently than those in other ALK - ALCLs subtypes. Phenotypically, the p-STAT3 + DN-ALCLs frequently expressed cytotoxic molecules, epithelial membrane antigen, and programmed death-ligand 1, whereas CD3 and CD5 expression was not observed. Clinically, patients with p-STAT3 + DN-ALCLs had a better prognosis than those with p-STAT3 - DN-ALCLs. These observations suggest that p-STAT3 + DN-ALCLs represent a distinct subtype of ALK - ALCLs. Identifying ALK - ALCL subtypes by using p-STAT3 staining and DUSP22 rearrangement is a promising approach that may contribute to risk stratification and better treatment decisions in the future clinical practice.
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16
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Feldman AL, Oishi N, Ketterling RP, Ansell SM, Shi M, Dasari S. Immunohistochemical Approach to Genetic Subtyping of Anaplastic Large Cell Lymphoma. Am J Surg Pathol 2022; 46:1490-1499. [PMID: 35941721 PMCID: PMC9588576 DOI: 10.1097/pas.0000000000001941] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Anaplastic large cell lymphoma (ALCL) can be classified genetically based on rearrangements (R) of the ALK , TP63 , and/or DUSP22 genes. ALK- R defines a specific entity, ALK-positive ALCL, while DUSP22- R and TP63- R define subgroups of ALK-negative ALCLs with distinct clinicopathologic features. ALK -R and TP63 -R produce oncogenic fusion proteins that can be detected by immunohistochemistry. ALK immunohistochemistry is an excellent surrogate for ALK- R and screening with p63 immunohistochemistry excludes TP63- R in two third of ALCLs. In contrast, DUSP22 -R does not produce a fusion protein and its identification requires fluorescence in situ hybridization. However, DUSP22- R ALCL has a characteristic phenotype including negativity for cytotoxic markers and phospho-STAT3 Y705 . Recently, we also identified overexpression of the LEF1 transcription factor in DUSP22- R ALCL. Here, we sought to validate this finding and examine models for predicting DUSP22- R using immunohistochemistry for LEF1 and TIA1 or phospho-STAT3 Y705 . We evaluated these 3 markers in our original discovery cohort (n=45) and in an independent validation cohort (n=46) of ALCLs. The correlation between DUSP22- R and LEF1 expression replicated strongly in the validation cohort ( P <0.0001). In addition, we identified and validated a strategy using LEF1 and TIA1 immunohistochemistry that predicted DUSP22- R with positive and negative predictive values of 100% after exclusion of indeterminate cases and would eliminate the need for fluorescence in situ hybridization in 65% of ALK-negative ALCLs. This approach had similar results in identifying DUSP22- R in the related condition, lymphomatoid papulosis. Together with previous data, these findings support a 4-marker immunohistochemistry algorithm using ALK, LEF1, TIA1, and p63 for genetic subtyping of ALCL.
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Affiliation(s)
- Andrew L. Feldman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Naoki Oishi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
- Department of Pathology, University of Yamanashi, Chuo, Yamanashi, Japan
| | | | | | - Min Shi
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Surendra Dasari
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
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Pathological and Molecular Features of Nodal Peripheral T-Cell Lymphomas. Diagnostics (Basel) 2022; 12:diagnostics12082001. [PMID: 36010351 PMCID: PMC9407466 DOI: 10.3390/diagnostics12082001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022] Open
Abstract
Peripheral T-cell lymphomas (PTCLs) are uncommon neoplasms derived from mature T cells or NK cells. PTCLs comprise numerous disease entities, with over 30 distinct entities listed in the latest WHO classification. They predominantly affect adults and elderly people and usually exhibit an aggressive clinical course with poor prognosis. According to their presentation, PTCLs can be divided into nodal, extranodal or cutaneous, and leukemic types. The most frequent primary sites of PTCLs are lymph nodes, with over half of cases showing nodal presentation. Nodal PTCLs include ALK-positive and ALK-negative anaplastic large cell lymphoma; nodal T-cell lymphoma with T follicular helper cell origin; and PTCL, not otherwise specified. Adult T-cell leukemia/lymphoma also frequently affects lymph nodes. Recent pathological and molecular findings in nodal PTCLs have profoundly advanced the identification of tumor signatures and the refinement of the classification. Therefore, the therapies and pathological diagnosis of nodal PTCLs are continually evolving. This paper aims to provide a summary and update of the pathological and molecular features of nodal PTCLs, which will be helpful for diagnostic practice.
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The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours: Lymphoid Neoplasms. Leukemia 2022; 36:1720-1748. [PMID: 35732829 PMCID: PMC9214472 DOI: 10.1038/s41375-022-01620-2] [Citation(s) in RCA: 1133] [Impact Index Per Article: 566.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/17/2022] [Accepted: 05/26/2022] [Indexed: 02/05/2023]
Abstract
We herein present an overview of the upcoming 5th edition of the World Health Organization Classification of Haematolymphoid Tumours focussing on lymphoid neoplasms. Myeloid and histiocytic neoplasms will be presented in a separate accompanying article. Besides listing the entities of the classification, we highlight and explain changes from the revised 4th edition. These include reorganization of entities by a hierarchical system as is adopted throughout the 5th edition of the WHO classification of tumours of all organ systems, modification of nomenclature for some entities, revision of diagnostic criteria or subtypes, deletion of certain entities, and introduction of new entities, as well as inclusion of tumour-like lesions, mesenchymal lesions specific to lymph node and spleen, and germline predisposition syndromes associated with the lymphoid neoplasms.
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Aberrant Expression of Lymphoid Enhancer-Binding Factor 1 (LEF1) in Hodgkin Lymphoma. Hum Pathol 2022; 125:2-10. [PMID: 35421421 DOI: 10.1016/j.humpath.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/28/2022] [Accepted: 04/04/2022] [Indexed: 11/22/2022]
Abstract
Lymphoid enhancer-binding factor 1 (LEF1) is a transcription factor involved in T-cell maturation and is usually absent in mature B-cells. Previous studies have shown aberrant LEF1 expression as a sensitive and specific marker in chronic lymphocytic leukemia/small lymphocytic lymphoma. Our primary aims were i) to analyze LEF1 expression in classic Hodgkin lymphomas (CHL) including de novo and Richter syndrome (RS), and to assess if LEF1 can be a surrogate marker to assess clonal relationship in RS, and ii) to compare LEF1 expression in CHL and Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL). We included 117 patients: 24 CHL-RS, 66 CHL-de novo and 27 NLPHL. There was no significant difference in LEF1 expression between CHL-RS and CHL-de novo (79.2% vs 87.9%, P = 0.299), or in type I and type II CHL-RS (75% vs 81.3%, P = 1.000). However, CHL showed a significantly higher LEF1 expression compared to NLPHL (85.6% vs 44.4%, P<0.0001). As the Wnt/β-catenin pathway directly regulates LEF1 expression in a β-catenin-dependent way, β-catenin expression was assessed in 76 cases and all were negative. Additionally, no association between EBV-positivity and LEF1-expression was detected. Overall, our findings show high LEF1 expression in CHL, regardless of RS or de novo, indicating LEF1 cannot be utilized as a surrogate marker to suggest clonal relationship in RS. Compared with CHL, LEF1 expression is significantly less common in NLPHL, further attesting that they are biologically distinct entities. The absent β-catenin expression suggests LEF1 expression is independent of Wnt/β-catenin signaling pathway in Hodgkin lymphomas.
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ALK-Negative Anaplastic Large Cell Lymphoma: Current Concepts and Molecular Pathogenesis of a Heterogeneous Group of Large T-Cell Lymphomas. Cancers (Basel) 2021; 13:cancers13184667. [PMID: 34572893 PMCID: PMC8472588 DOI: 10.3390/cancers13184667] [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: 08/22/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 12/21/2022] Open
Abstract
Simple Summary ALK- anaplastic large cell lymphoma (ALK- ALCL) is a rare subtype of CD30+ large T-cell lymphoma that typically affects older adults and has a poor prognosis. Recognition of its histopathologic spectrum, subtypes, and of other tumors that can resemble ALK- ALCL is crucial to avoid making a wrong diagnosis that could result in inappropriate treatment for a patient. In recent years, several important studies have identified recurrent molecular alterations that have shed light on the pathogenesis of this lymphoma. However, on the other hand, putting all this vast information together into a concise form has become challenging. In this review, we present not only a more detailed view of the histopathologic findings of ALK- ALCL but also, we attempt to provide a more simplified perspective of the relevant genetic and molecular alterations of this type of lymphoma, that in our opinion, is not available to date. Abstract Anaplastic large cell lymphoma (ALCL) is a subtype of CD30+ large T-cell lymphoma (TCL) that comprises ~2% of all adult non-Hodgkin lymphomas. Based on the presence/absence of the rearrangement and expression of anaplastic lymphoma kinase (ALK), ALCL is divided into ALK+ and ALK-, and both differ clinically and prognostically. This review focuses on the historical points, clinical features, histopathology, differential diagnosis, and relevant cytogenetic and molecular alterations of ALK- ALCL and its subtypes: systemic, primary cutaneous (pc-ALCL), and breast implant-associated (BIA-ALCL). Recent studies have identified recurrent genetic alterations in this TCL. In systemic ALK- ALCL, rearrangements in DUSP22 and TP63 are detected in 30% and 8% of cases, respectively, while the remaining cases are negative for these rearrangements. A similar distribution of these rearrangements is seen in pc-ALCL, whereas none have been detected in BIA-ALCL. Additionally, systemic ALK- ALCL—apart from DUSP22-rearranged cases—harbors JAK1 and/or STAT3 mutations that result in the activation of the JAK/STAT signaling pathway. The JAK1/3 and STAT3 mutations have also been identified in BIA-ALCL but not in pc-ALCL. Although the pathogenesis of these alterations is not fully understood, most of them have prognostic value and open the door to the use of potential targeted therapies for this subtype of TCL.
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Merlio JP, Kadin ME. Cytokines, Genetic Lesions and Signaling Pathways in Anaplastic Large Cell Lymphomas. Cancers (Basel) 2021; 13:4256. [PMID: 34503066 PMCID: PMC8428234 DOI: 10.3390/cancers13174256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/18/2021] [Accepted: 08/18/2021] [Indexed: 12/20/2022] Open
Abstract
ALCL is a tumor of activated T cells and possibly innate lymphoid cells with several subtypes according to clinical presentation and genetic lesions. On one hand, the expression of transcription factors and cytokine receptors triggers signaling pathways. On the other hand, ALCL tumor cells also produce many proteins including chemokines, cytokines and growth factors that affect patient symptoms. Examples are accumulation of granulocytes stimulated by IL-8, IL-17, IL-9 and IL-13; epidermal hyperplasia and psoriasis-like skin lesions due to IL-22; and fever and weight loss in response to IL-6 and IFN-γ. In this review, we focus on the biology of the main ALCL subtypes as the identification of signaling pathways and ALCL-derived cytokines offers opportunities for targeted therapies.
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Affiliation(s)
- Jean-Philippe Merlio
- Tumor Biology and Tumor Bank Laboratory, Centre Hospitalier et Universitaire de Bordeaux, 33600 Pessac, France
- INSERM U1053, University Bordeaux, 33000 Bordeaux, France
| | - Marshall E. Kadin
- Department of Pathology and Laboratory Medicine, Brown University Alpert School of Medicine, Providence, RI 02903, USA
- Department of Dermatology, Boston University, Boston, MA 02215, USA
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