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Melendez YP, Mahmoud A, Caddell R, Nelson R, Sokol L, Shah B, Saeed H. CLO22-066: Toxicity of a Modified PEG-Asparaginase Based SMILE Regimen is Comparable to L-Asparaginase Based SMILE in a non-Asian Population. J Natl Compr Canc Netw 2022. [DOI: 10.6004/jnccn.2021.7185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
| | | | | | - R Nelson
- 1 Moffitt Cancer Center, Tampa, FL
| | - L Sokol
- 1 Moffitt Cancer Center, Tampa, FL
| | - B Shah
- 1 Moffitt Cancer Center, Tampa, FL
| | - H Saeed
- 1 Moffitt Cancer Center, Tampa, FL
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2
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Isom J, Messina J, Seminario-Vidal L, Sokol L. LB774 Comparison of clinical and pathologic assessment of lesions in Mycosis Fungoides. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.07.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Cowan RA, Scarisbrick JJ, Zinzani PL, Nicolay JP, Sokol L, Pinter-Brown L, Quaglino P, Iversen L, Dummer R, Musiek A, Foss F, Ito T, Rosen JP, Medley MC. Efficacy and safety of mogamulizumab by patient baseline blood tumour burden: a post hoc analysis of the MAVORIC trial. J Eur Acad Dermatol Venereol 2021; 35:2225-2238. [PMID: 34273208 PMCID: PMC9290719 DOI: 10.1111/jdv.17523] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 07/02/2021] [Indexed: 12/21/2022]
Abstract
Background Mogamulizumab was compared with vorinostat in the phase 3 MAVORIC trial (NCT01728805) in 372 patients with relapsed/refractory mycosis fungoides (MF) or Sézary syndrome (SS) who had failed ≥1 prior systemic therapy. Mogamulizumab significantly prolonged progression‐free survival (PFS), with a superior objective response rate (ORR) vs. vorinostat. Objectives This post hoc analysis was performed to evaluate the effect of baseline blood tumour burden on patient response to mogamulizumab. Methods PFS, ORR, time to next treatment (TTNT), skin response (modified Severity‐Weighted Assessment Tool [mSWAT]) and safety were assessed in patients stratified by blood classification (B0 [n = 126], B1 [n = 62], or B2 [n = 184], indicating increasing blood involvement). Results Investigator‐assessed PFS was longer for mogamulizumab versus vorinostat across all blood classes, significantly so for B1 and B2 patients. ORR was higher with mogamulizumab than with vorinostat in all blood classification groups and more markedly so with escalating B class (B0: 15.6% vs. 6.5%, P = 0.0549; B1: 25.8% vs. 6.5%, P = 0.2758; B2: 37.4% vs. 3.2%, P < 0.0001). TTNT was significantly longer for patients treated with mogamulizumab versus vorinostat with B1 (12.63 vs. 3.07 months; HR 0.32 [95% CI 0.16–0.67]; P = 0.0018) and B2 (13.07 vs. 3.53 months; HR 0.30 [95% CI 0.21–0.43]; P < 0.0001) blood involvement. In the mogamulizumab arm, 81 patients (43.5%) had ≥50% change in the mSWAT vs. 41 patients (22.0%) with vorinostat; mSWAT improvements with mogamulizumab occurred most often in B1 and B2 patients. Rapid, sustained reductions were seen in CD4+CD26‐ cell counts and CD4:CD8 ratios in mogamulizumab patients for all B classes. Treatment‐emergent adverse events were less frequent overall with mogamulizumab and similar in frequency regardless of B class. Conclusions This post hoc analysis indicates greater clinical benefit with mogamulizumab vs. vorinostat in patients with MF and SS classified as having B1 and B2 blood involvement.
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Affiliation(s)
- R A Cowan
- Christie Hospital Foundation NHS Trust, University of Manchester, Manchester, UK
| | | | - P L Zinzani
- IRCCS Azienda Ospedaliero, Universitaria di Bologna, Bologna, Italia.,Istituto di Ematologia 'Seràgnoli', Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale Università degli Studi, Bologna, Italia
| | - J P Nicolay
- University Medical Centre Mannheim, Mannheim, Germany
| | - L Sokol
- Moffitt Cancer Center, Tampa, FL, USA
| | - L Pinter-Brown
- Chao Family Comprehensive Cancer Center, University of California-Irvine, Orange, CA, USA
| | | | - L Iversen
- Department of Dermatology, Aarhus University Hospital, Aarhus, Denmark
| | - R Dummer
- Universitäts Spital Zürich, Zürich, Switzerland
| | - A Musiek
- Division of Dermatology, Washington University in Saint Louis, St. Louis, Missouri, USA
| | - F Foss
- Hematology and Stem Cell Transplantation, Yale School of Medicine, New Haven, Connecticut, USA
| | - T Ito
- Kyowa Kirin Pharmaceutical Development, Inc., Princeton, NJ, USA
| | - J-P Rosen
- Kyowa Kirin International, Buckinghamshire, UK
| | - M C Medley
- Kyowa Kirin International, Buckinghamshire, UK
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Abramson JS, Bengston EM, Redd R, Barnes JA, Takvorian T, Sokol L, Lansigan F, Armand P, Shah B, Jacobsen E, Martignetti R, Turba E, Metzler SR, Patterson V, LaCasce AS, Bello CM. MATURE RESULTS FROM A PHASE II TRIAL OF BRENTUXIMAB VEDOTIN PLUS ADRIAMYCIN AND DACARBAZINE WITHOUT RADIATION IN NON‐BULKY LIMITED STAGE CLASSICAL HODGKIN LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.110_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- J. S. Abramson
- Massachusetts General Hospital Center for Lymphoma Boston Massachusetts USA
| | - E. M. Bengston
- Dartmouth‐Hitchcock Medical Center Hematology/Oncology Lebanon New Hampshire USA
| | - R. Redd
- Dana‐Farber Cancer Institute Biostatistics Boston Massachusetts USA
| | - J. A. Barnes
- Massachusetts General Hospital Center for Lymphoma Boston Massachusetts USA
| | - T. Takvorian
- Massachusetts General Hospital Center for Lymphoma Boston Massachusetts USA
| | - L. Sokol
- Moffitt Cancer Center Hematology/Oncology Tampa USA
| | - F. Lansigan
- Dartmouth‐Hitchcock Medical Center Hematology/Oncology Lebanon New Hampshire USA
| | - P. Armand
- Dana‐Farber Cancer Institute Medical Oncology Boston USA
| | - B. Shah
- Moffitt Cancer Center Hematology/Oncology Tampa USA
| | - E. Jacobsen
- Dana‐Farber Cancer Institute Medical Oncology Boston USA
| | - R. Martignetti
- Massachusetts General Hospital Center for Lymphoma Boston Massachusetts USA
| | - E. Turba
- Moffitt Cancer Center Hematology/Oncology Tampa USA
| | - S. R. Metzler
- Dartmouth‐Hitchcock Medical Center Hematology/Oncology Lebanon New Hampshire USA
| | - V. Patterson
- Dana‐Farber Cancer Institute Medical Oncology Boston USA
| | - A. S. LaCasce
- Dana‐Farber Cancer Institute Medical Oncology Boston USA
| | - C. M. Bello
- Moffitt Cancer Center Hematology/Oncology Tampa USA
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5
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Bridgelall S, Michalski J, Zhang X, Sokol L, Dong N, Zhang L. Single Institutional Experience on Cutaneous Manifestation of Adult T-cell Leukemia/Lymphoma - Potential Diagnostic Pitfall. Am J Clin Pathol 2020. [DOI: 10.1093/ajcp/aqaa161.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction/Objective
Adult T-cell Leukemia/Lymphoma (ATLL) is an aggressive peripheral T-cell neoplasm caused by the human T-cell lymphotropic virus-1 (HTLV1). Approximately half of the patients diagnosed with ATLL have heterogeneous cutaneous manifestations and 1/3 of those patients have skin changes e.g. rashes, papules, and nodules at initial presentation. There is clinical and morphologic overlap between ATLL and other cutaneous T-cell neoplasms such as Cutaneous T-Cell Lymphoma/mycosis fungoides (CTCL/MF) which could pose a potential diagnostic challenge.
Methods
A retrospective study was conducted using PathNet system to search for HTLV1 positive ATLL patients. Clinicopathologic features of the patients with cutaneous involvement were analyzed.
Results
Total 31 patients with ATLL were identified. Nine patients (29%, median 54.5 years, range 47-67 years, male: female ratio 2:7) showed skin manifestations, and the cutaneous involvement with ATLL was confirmed by skin biopsy. Five (55.5%, 5/9) cases were initially misdiagnosed as CTCL/MF. Among the 5 patients, 2 presented with skin rash or diffuse erythematous patch/plaque before developing generalized lymphadenopathy or overt circulating atypical lymphocytosis; 2 developed severe pruritic rash with erythematous skin changes resembling Sezary syndrome; and 1 patient had folliculotrophic MF diagnosed 12 years before. Notably, atypical lymphocytosis (0.46- 41.19/µL) occurred in 3 of the 4 remaining cases. In addition, eight of the 9 patients displayed a variable level of CD3+/CD4+/ CD25strong+ abnormal T-cells on flow cytometry. A low-level bone marrow involvement (2-10%) was found in 8 of 9 cases. Elevated calcium levels were identified in 3 of 9 cases (33%). There were 7 of 8 patients (87.5%) who developed generalized lymphadenopathy when diagnosis of ATLL was rendered.
Conclusion
In patients with cutaneous manifestations, features including hypercalcemia, atypical lymphocytosis, lymphadenopathy, CD3/CD4/strong CD25 coexpression, and bone marrow involvement should prompt a test for HTLV1. Early diagnosis of ATLL can initiate proper treatment and improve patient clinical outcomes.
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Affiliation(s)
- S Bridgelall
- Pathology and Cell Biology, University of South Florida, Tampa, Florida, UNITED STATES
| | - J Michalski
- Pathology and Cell Biology, University of South Florida, Tampa, Florida, UNITED STATES
| | - X Zhang
- Moffitt Cancer Center, Tampa, Florida, UNITED STATES
| | - L Sokol
- Moffitt Cancer Center, Tampa, Florida, UNITED STATES
| | - N Dong
- Moffitt Cancer Center, Tampa, Florida, UNITED STATES
| | - L Zhang
- Moffitt Cancer Center, Tampa, Florida, UNITED STATES
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Abstract
Tagraxofusp is a toxin-cytokine fusion protein consisting of engineered diphtheria toxin (DT) and interleukin-3 (IL-3). The IL-3 domain binds to the cluster of differentiation 123 (CD123) and translocates DT into the cytosol, which leads to cell death. Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare and aggressive hematologic malignancy with a strong expression of CD123. Historical data show that the prognosis of BPDCN is poor, with a median overall survival of 9 to 13 months. On December 21, 2018, the United States Food and Drug Administration (FDA) approved tagraxofusp for the treatment of adults and children with newly diagnosed or relapsed/refractory BPDCN, becoming the first FDA-approved drug for this disease. In this review, we examine the preclinical studies and phase I/II clinical studies that led to FDA approval of tagraxofusp, focusing on its molecular pharmacology, pharmacokinetics, efficacy and safety profile. We also discuss future directions regarding BPDCN management.
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Affiliation(s)
- A Tandon
- Department of Internal Medicine, University of South Florida, Tampa, Florida, USA
| | - Y Zhang
- Department of Internal Medicine, University of South Florida, Tampa, Florida, USA
| | - L Sokol
- Department of Malignant Hematology, Moffitt Cancer Center, Tampa, Florida, USA.
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7
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Witzig T, Sokol L, Kim W, Foss F, Jacobsen E, de la Cruz Vincente F, Caballero D, Advani R, Roncero Vidal J, Marin-Niebla A, Rodriguez Izquierdo A, de Ona Navarrete R, Terol M, Domingo-Domenech E, Rodriguez M, Piris M, Bolognese J, Janes M, Burrows F, Kessler L, Mishra V, Curry R, Kurman M, Scholz C, Gualberto A. TIPIFARNIB IN RELAPSED OR REFRACTORY ANGIOIMMUNOBLASTIC T-CELL LYMPHOMA (AITL) AND CXCL12+ PERIPHERAL T-CELL LYMPHOMA (PTCL): PRELIMINARY RESULTS FROM A PHASE 2 STUDY. Hematol Oncol 2019. [DOI: 10.1002/hon.32_2629] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T. Witzig
- Laboratory Medicine and Pathology; Mayo Clinic; Rochester United States
| | - L. Sokol
- Hematology; H. Lee Moffitt Cancer Center & Research Institute; Tampa FL United States
| | - W. Kim
- Hematology - Oncology; Samsung Medical Center; Seoul Republic of Korea
| | - F. Foss
- Medical Oncology; Yale University School of Medicine; New Haven United States
| | - E. Jacobsen
- Medical Oncology; Dana-Farber Cancer Institute; Boston United States
| | | | - D. Caballero
- Hematology - Oncology; Hospital Universitario de Salamanca; Salamanca Spain
| | - R. Advani
- Medicine - Med/Oncology; Stanford University Medical Center; Palo Alto United States
| | | | - A. Marin-Niebla
- Hematology - Oncology; Vall D'Hebron Institute of Oncology; Barcelona Spain
| | | | | | - M.J. Terol
- Hematology; Hospital Clinico Universitario de Valencia; València Spain
| | | | | | - M.A. Piris
- Pathology; Fundación Jiménez Díaz; Madrid Spain
| | | | - M.R. Janes
- Biology; Wellspring Biosciences, Inc.; San Diego United States
| | - F. Burrows
- Research; Kura Oncology, Inc.; San Diego United States
| | - L. Kessler
- Development; Kura Oncology, Inc.; San Diego United States
| | - V. Mishra
- Development; Kura Oncology, Inc.; San Diego United States
| | - R. Curry
- Development; Kura Oncology, Inc.; Cambridge United States
| | - M. Kurman
- Development; Kura Oncology, Inc.; Cambridge United States
| | - C. Scholz
- Development; Kura Oncology, Inc.; Cambridge United States
| | - A. Gualberto
- Development; Kura Oncology, Inc.; Cambridge United States
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Falchi L, Lue J, Montanari F, Marchi E, Amengual J, Sawas A, Deng C, Khan K, Kim H, Rada A, Malanga M, Francescone M, Soderquist C, Park D, Bhagat G, Sokol L, Shustov A, O'Connor O. TARGETING THE PERIPHERAL T-CELL LYMPHOMA (PTCL) EPIGENOME WITH ORAL 5-AZACYTIDINE AND ROMIDEPSIN: RESULTS AND CLINICAL-MOLECULAR CORRELATIONS FROM A PHASE 2 STUDY. Hematol Oncol 2019. [DOI: 10.1002/hon.135_2629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- L. Falchi
- Medicine; Columbia University Medical Center; New York United States
| | - J.K. Lue
- Medicine; Columbia University Medical Center; New York United States
| | - F. Montanari
- Medicine; Columbia University Medical Center; New York United States
| | - E. Marchi
- Medicine; Columbia University Medical Center; New York United States
| | - J.E. Amengual
- Medicine; Columbia University Medical Center; New York United States
| | - A. Sawas
- Medicine; Columbia University Medical Center; New York United States
| | - C. Deng
- Medicine; Columbia University Medical Center; New York United States
| | - K. Khan
- Medicine; Columbia University Medical Center; New York United States
| | - H.A. Kim
- Medicine; Columbia University Medical Center; New York United States
| | - A. Rada
- Medicine; Columbia University Medical Center; New York United States
| | - M. Malanga
- Medicine; Columbia University Medical Center; New York United States
| | - M.F. Francescone
- Medicine; Columbia University Medical Center; New York United States
| | - C.R. Soderquist
- Medicine; Columbia University Medical Center; New York United States
| | - D.C. Park
- Medicine; Columbia University Medical Center; New York United States
| | - G. Bhagat
- Medicine; Columbia University Medical Center; New York United States
| | - L. Sokol
- Malignant Hematology; Moffitt Cancer Center/University of South Florida; Tampa United States
| | - A.R. Shustov
- Medicine; University of Washington School of Medicine; Seattle United States
| | - O.A. O'Connor
- Medicine; Columbia University Medical Center; New York United States
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9
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Kim Y, Ortiz-Romero P, Pro B, Sokol L, Scarisbrick J, Musiek A, Vermeer M, Dummer R, Halwani A, Fierro M, Moriya J, Leoni M, Bagot M. TIME TO NEXT TREATMENT IN PATIENTS WITH PREVIOUSLY TREATED CUTANEOUS T-CELL LYMPHOMA (CTCL) RECEIVING MOGAMULIZUMAB OR VORINOSTAT: A POST-HOC ANALYSIS OF THE MAVORIC STUDY. Hematol Oncol 2019. [DOI: 10.1002/hon.95_2630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Y.H. Kim
- Dermatology; Stanford University School of Medicine; Stanford United States
| | - P.L. Ortiz-Romero
- Dermatología; Institute i+12, Hospital Universitario 12 de Octubre, Universidad Complutense; Madrid Spain
| | - B. Pro
- Oncology; Northwestern University; Chicago United States
| | - L. Sokol
- Hematology/Oncology; H. Lee Moffitt Cancer Center; Tampa United States
| | - J. Scarisbrick
- Lymphoma Service; University Hospitals Birmingham; Birmingham United Kingdom
| | - A. Musiek
- Dermatology; Washington University; St. Louis United States
| | - M. Vermeer
- Dermatology; Leiden University Medical Center; Leiden Netherlands
| | - R. Dummer
- Dermatology; UniversitatsSpital Zurich; Zurich Switzerland
| | - A. Halwani
- Hematology; University of Utah; Salt Lake City United States
| | - M. Fierro
- Scienze Mediche; Università di Torino; Torino Italy
| | - J. Moriya
- Biostatistics; Kyowa Kirin Pharmaceutical Development, Inc.; Princeton United States
| | - M. Leoni
- Medical Sciences; Kyowa Kirin Pharmaceutical Development, Inc.; Princeton United States
| | - M. Bagot
- Service de Dermatologie; Hôpital Saint Louis, APHP, Inserm U976, Université Paris 7; Paris France
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Ruan J, Leonard J, Coleman M, Rutherford S, Van Besien K, Rodriguez A, Benderoff L, Mehta-Shah N, Moskowitz A, Sokol L, Cerchietti L, Inghirami G, Martin P. MULTI-CENTER PHASE II STUDY OF ORAL AZACITIDINE (CC-486) PLUS CHOP AS INITIAL TREATMENT FOR PERIPHERAL T-CELL LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.8_2632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J. Ruan
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - J.P. Leonard
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - M. Coleman
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - S. Rutherford
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - K. Van Besien
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - A. Rodriguez
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - L. Benderoff
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - N. Mehta-Shah
- Department of Medicine; Washington University in St. Louis; St Louis United States
| | - A. Moskowitz
- Department of Medicine; Memorial Sloan Kettering Cancer Center; New York United States
| | - L. Sokol
- Department of Medicine; Moffitt Cancer Center; Tampa United States
| | - L. Cerchietti
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
| | - G. Inghirami
- Department of Pathology; Weill Cornell Medical College; New York United States
| | - P. Martin
- Medicine/Hematology-Oncology; Weill Cornell Medical College; New York United States
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Sandoval-Sus J, Dalia S, Mhaskar R, Chavez J, Ausekar A, Purnapatre K, Scheiber J, Sokol L. Intensified 14-day rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone (RCHOP14) compared to RCHOP21 in patients with newly diagnosed diffuse large B cell lymphoma (DLBCL): A systematic review and meta-analysis of randomized controlled trials. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy286.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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12
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Payton M, Pinchasik D, Mehta A, Goel S, Zain J, Sokol L, Jacobsen E, Patel M, Horwitz S, Meric-Bernstam F, Shustov A, Weinstock D, Aivado M, Annis D. Phase 2a study of a novel stapled peptide ALRN-6924 disrupting MDMX- and MDM2-mediated inhibition of wild-type TP53 in patients with peripheral t-cell lymphoma. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx373.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Witzig T, Sokol L, Jacobsen E, Advani R, Mondejar R, Piris M, Burrows F, Melvin C, Mishra V, Scholz C, Gualberto A. PRELIMINARY RESULTS FROM AN OPEN-LABEL, PHASE II STUDY OF TIPIFARNIB IN RELAPSED OR REFRACTORY PERIPHERAL T-CELL LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T. Witzig
- Laboratory Medicine and Pathology; Mayo Clinic; Rochester USA
| | - L. Sokol
- Medical Oncology; H. Lee Moffitt Cancer Center & Research Institute; Tampa USA
| | - E. Jacobsen
- Medical Oncology; Dana Farber Cancer Institute; Boston USA
| | - R. Advani
- Medicine - Med/Oncology; Stanford Cancer Institute; Palo Alto USA
| | - R. Mondejar
- Laboratorio de Genómica del Cáncer, IDIVAL-Instituto de Investigación Marqués de Valdecilla; Santander Spain
| | - M. Piris
- Pathology Service, Fundación Jiménez Díaz; Madrid Spain
| | - F. Burrows
- Research & Development; Kura Oncology; La Jolla USA
| | - C. Melvin
- Research & Development; Kura Oncology; La Jolla USA
| | - V. Mishra
- Research & Development; Kura Oncology; La Jolla USA
| | - C. Scholz
- Research & Development; Kura Oncology; La Jolla USA
| | - A. Gualberto
- Research & Development; Kura Oncology; La Jolla USA
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14
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Horwitz S, Coiffier B, Foss F, Prince HM, Sokol L, Greenwood M, Caballero D, Morschhauser F, Pinter-Brown L, Iyer SP, Shustov A, Nichols J, Balser J, Balser B, Pro B. Utility of ¹⁸fluoro-deoxyglucose positron emission tomography for prognosis and response assessments in a phase 2 study of romidepsin in patients with relapsed or refractory peripheral T-cell lymphoma. Ann Oncol 2015; 26:774-779. [PMID: 25605745 PMCID: PMC4374388 DOI: 10.1093/annonc/mdv010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 12/19/2014] [Accepted: 12/23/2014] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND For patients with peripheral T-cell lymphoma (PTCL), the value of (18)fluoro-deoxyglucose positron emission tomography (FDG-PET) scans for assessing prognosis and response to treatment remains unclear. The utility of FDG-PET, in addition to conventional radiology, was examined as a planned exploratory end point in the pivotal phase 2 trial of romidepsin for the treatment of relapsed/refractory PTCL. PATIENTS AND METHODS Patients received romidepsin at a dose of 14 mg/m(2) on days 1, 8, and 15 of 28-day cycles. The primary end point was the rate of confirmed/unconfirmed complete response (CR/CRu) as assessed by International Workshop Criteria (IWC) using conventional radiology. For the exploratory PET end point, patients with at least baseline FDG-PET scans were assessed by IWC + PET criteria. RESULTS Of 130 patients, 110 had baseline FDG-PET scans, and 105 were PET positive at baseline. The use of IWC + PET criteria increased the objective response rate to 30% compared with 26% by conventional radiology. Durations of response were well differentiated by both conventional radiology response criteria [CR/CRu versus partial response (PR), P = 0.0001] and PET status (negative versus positive, P < 0.0001). Patients who achieved CR/CRu had prolonged progression-free survival (PFS, median 25.9 months) compared with other response groups (P = 0.0007). Patients who achieved PR or stable disease (SD) had similar PFS (median 7.2 and 6.3 months, respectively, P = 0.6427). When grouping PR and SD patients by PET status, patients with PET-negative versus PET-positive disease had a median PFS of 18.2 versus 7.1 months (P = 0.0923). CONCLUSIONS Routine use of FDG-PET does not obviate conventional staging, but may aid in determining prognosis and refine response assessments for patients with PTCL, particularly for those who do not achieve CR/CRu by conventional staging. The optimal way to incorporate FDG-PET scans for patients with PTCL remains to be determined. TRIAL REGISTRATION NCT00426764.
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MESH Headings
- Antibiotics, Antineoplastic/therapeutic use
- Depsipeptides/therapeutic use
- Drug Resistance, Neoplasm/drug effects
- Fluorodeoxyglucose F18/pharmacokinetics
- Follow-Up Studies
- Humans
- Lymphoma, T-Cell, Peripheral/diagnostic imaging
- Lymphoma, T-Cell, Peripheral/drug therapy
- Lymphoma, T-Cell, Peripheral/mortality
- Lymphoma, T-Cell, Peripheral/pathology
- Neoplasm Staging
- Positron-Emission Tomography/statistics & numerical data
- Prognosis
- Prospective Studies
- Radiopharmaceuticals/pharmacokinetics
- Remission Induction
- Survival Rate
- Tissue Distribution
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Affiliation(s)
- S Horwitz
- Lymphoma Division, Memorial Sloan-Kettering Cancer Center, New York, USA.
| | - B Coiffier
- Department of Hematology, Hospices Civils de Lyon, Lyon, France
| | - F Foss
- Hematology Department, Yale Cancer Center, New Haven, USA
| | - H M Prince
- Division of Cancer Medicine, Department of Haematology, Peter MacCallum Cancer Centre and University of Melbourne, Australia
| | - L Sokol
- Department of Malignant Hematology, Moffitt Cancer Center, Tampa, USA
| | - M Greenwood
- Department of Haematology, Royal North Shore Hospital, Sydney, Australia
| | - D Caballero
- Hematology Department, Hospital Universitario de Salamanca, Salamanca, Spain
| | - F Morschhauser
- Department of Hematology, Hôpital Claude Huriez, CHU de Lille, France
| | - L Pinter-Brown
- Division of Hematology-Oncology, UCLA Medical Center, Los Angeles
| | - S P Iyer
- Malignant Hematology, Houston Methodist Cancer Center, Houston
| | - A Shustov
- Division of Hematology, University of Washington, Seattle
| | | | | | | | - B Pro
- Division of Hematology, Thomas Jefferson University, Philadelphia, USA
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15
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Basiorka A, Mcgraw K, Eksioglu E, Chen X, Johnson J, Padron E, Komrokji R, Sokol L, Coll R, O'Neill L, Cooper M, Robertson A, Wei S, List A. 32 ACTIVATION OF REDOX-SENSITIVE INFLAMMASOMES UNDERLIES THE BIOLOGICAL PHENOTYPE OF MYELODYSPLASTIC SYNDROMES. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30033-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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McGraw KL, Zhang LM, Rollison DE, Basiorka AA, Fulp W, Rawal B, Jerez A, Billingsley DL, Lin HY, Kurtin SE, Yoder S, Zhang Y, Guinta K, Mallo M, Solé F, Calasanz MJ, Cervera J, Such E, González T, Nevill TJ, Haferlach T, Smith AE, Kulasekararaj A, Mufti G, Karsan A, Maciejewski JP, Sokol L, Epling-Burnette PK, Wei S, List AF. The relationship of TP53 R72P polymorphism to disease outcome and TP53 mutation in myelodysplastic syndromes. Blood Cancer J 2015; 5:e291. [PMID: 25768405 PMCID: PMC4382654 DOI: 10.1038/bcj.2015.11] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/13/2015] [Indexed: 01/22/2023] Open
Abstract
Nonsynonymous TP53 exon 4 single-nucleotide polymorphism (SNP), R72P, is linked to cancer and mutagen susceptibility. R72P associations with specific cancer risk, particularly hematological malignancies, have been conflicting. Myelodysplastic syndrome (MDS) with chromosome 5q deletion is characterized by erythroid hypoplasia arising from lineage-specific p53 accumulation resulting from ribosomal insufficiency. We hypothesized that apoptotically diminished R72P C-allele may influence predisposition to del(5q) MDS. Bone marrow and blood DNA was sequenced from 705 MDS cases (333 del(5q), 372 non-del(5q)) and 157 controls. Genotype distribution did not significantly differ between del(5q) cases (12.6% CC, 38.1% CG, 49.2% GG), non-del(5q) cases (9.7% CC, 44.6% CG, 45.7% GG) and controls (7.6% CC, 37.6% CG, 54.8% GG) (P=0.13). Allele frequency did not differ between non-del(5q) and del(5q) cases (P=0.91) but trended towards increased C-allele frequency comparing non-del(5q) (P=0.08) and del(5q) (P=0.10) cases with controls. Median lenalidomide response duration increased proportionate to C-allele dosage in del(5q) patients (2.2 (CC), 1.3 (CG) and 0.89 years (GG)). Furthermore, C-allele homozygosity in del(5q) was associated with prolonged overall and progression-free survival and non-terminal interstitial deletions that excluded 5q34, whereas G-allele homozygozity was associated with inferior outcome and terminal deletions involving 5q34 (P=0.05). These findings comprise the largest MDS R72P SNP analysis.
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Affiliation(s)
- K L McGraw
- Hematology Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - L M Zhang
- Molecular Genomics Core Lab, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - D E Rollison
- Cancer Epidemiology, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - A A Basiorka
- 1] Hematology Department, H Lee Moffitt Cancer Center, Tampa, FL, USA [2] Cancer Biology PhD Program, University of South Florida, Tampa, FL, USA
| | - W Fulp
- Biostatistics and Bioinformatics Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - B Rawal
- Mayo Clinic, Biostatistics-Division of Health Sciences Research, Jacksonville, FL, USA
| | - A Jerez
- Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH, USA
| | | | - H-Y Lin
- Biostatistics and Bioinformatics Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | | | - S Yoder
- Molecular Genomics Core Lab, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - Y Zhang
- Biostatistics and Bioinformatics Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - K Guinta
- Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH, USA
| | - M Mallo
- Institut de Recerca Contra la Leucèmia Josep Carreras (IJC) Badalona, Barcelona, Spain
| | - F Solé
- Institut de Recerca Contra la Leucèmia Josep Carreras (IJC) Badalona, Barcelona, Spain
| | - M J Calasanz
- Hematology Department, Hospital Universitario La Fe, Valencia, Spain
| | - J Cervera
- Hematology Department, Hospital Universitario La Fe, Valencia, Spain
| | - E Such
- Hematology Department, Hospital Universitario La Fe, Valencia, Spain
| | - T González
- Genomics Medicine Public Foundation, Hospital Clinico Universitario, Santiago de Compostela, Spain
| | - T J Nevill
- British Columbia Cancer Agency, Vancouver, BC, Canada
| | | | - A E Smith
- King's College London, King's College Hospital, London, UK
| | | | - G Mufti
- King's College London, King's College Hospital, London, UK
| | - A Karsan
- British Columbia Cancer Agency, Vancouver, BC, Canada
| | - J P Maciejewski
- Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH, USA
| | - L Sokol
- Hematology Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | | | - S Wei
- Immunology Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
| | - A F List
- Hematology Department, H Lee Moffitt Cancer Center, Tampa, FL, USA
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17
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Wei S, Chen X, McGraw K, Zhang L, Komrokji R, Clark J, Caceres G, Billingsley D, Sokol L, Lancet J, Fortenbery N, Zhou J, Eksioglu EA, Sallman D, Wang H, Epling-Burnette PK, Djeu J, Sekeres M, Maciejewski JP, List A. Lenalidomide promotes p53 degradation by inhibiting MDM2 auto-ubiquitination in myelodysplastic syndrome with chromosome 5q deletion. Oncogene 2012; 32:1110-20. [PMID: 22525275 DOI: 10.1038/onc.2012.139] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Allelic deletion of the RPS14 gene is a key effector of the hypoplastic anemia in patients with myelodysplastic syndrome (MDS) and chromosome 5q deletion (del(5q)). Disruption of ribosome integrity liberates free ribosomal proteins to bind to and trigger degradation of mouse double minute 2 protein (MDM2), with consequent p53 transactivation. Herein we show that p53 is overexpressed in erythroid precursors of primary bone marrow del(5q) MDS specimens accompanied by reduced cellular MDM2. More importantly, we show that lenalidomide (Len) acts to stabilize MDM2, thereby accelerating p53 degradation. Biochemical and molecular analyses showed that Len inhibits the haplodeficient protein phosphatase 2A catalytic domain alpha (PP2Acα) phosphatase resulting in hyperphosphorylation of inhibitory serine-166 and serine-186 residues on MDM2, and displaces binding of RPS14 to suppress MDM2 autoubiquitination whereas PP2Acα overexpression promotes drug resistance. Bone marrow specimens from del(5q) MDS patients resistant to Len overexpressed PP2Acα accompanied by restored accumulation of p53 in erythroid precursors. Our findings indicate that Len restores MDM2 functionality in the 5q- syndrome to overcome p53 activation in response to nucleolar stress, and therefore may warrant investigation in other disorders of ribosomal biogenesis.
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Affiliation(s)
- S Wei
- H Lee Moffitt Cancer Center, Tampa, FL 33647, USA.
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Sugimori C, Padron E, Caceres G, Shain K, Sokol L, Zhang L, Tiu R, O'Keefe CL, Afable M, Clemente M, Lee JM, Maciejewski JP, List AF, Epling-Burnette PK, Araten DJ. Paroxysmal nocturnal hemoglobinuria and concurrent JAK2(V617F) mutation. Blood Cancer J 2012; 2:e63. [PMID: 22829258 PMCID: PMC3317526 DOI: 10.1038/bcj.2012.7] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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19
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Horwitz SM, Coiffier B, Foss FM, Prince HM, Sokol L, Greenwood M, Caballero D, Borchmann P, Morschhauser F, Wilhelm M, Pinter-Brown LC, Padmanabhan S, Shustov AR, Nichols J, Balser J, Carroll S, Pro B. Complete responses (CR/CRu) on a phase II study of romidepsin in relapsed or refractory peripheral T-cell lymphoma (R/R PTCL). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.8033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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20
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Sokol L, Caceres G, Rocha K, Stockero K, Dewald D, List A. JAK2V617F mutation in myelodysplastic syndrome (MDS) with del(5q) arises in genetically discordant clones. Leuk Res 2010; 34:821-3. [DOI: 10.1016/j.leukres.2009.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 09/12/2009] [Accepted: 09/12/2009] [Indexed: 10/20/2022]
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21
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Shah BD, Tao J, Sokol L, Chervenick PA, Tomblyn MR, Pinilla-Ibarz J, Moscinski L, Antonia S, Sotomayor EM, Dessureault S. Bystander vaccine therapy in mantle cell lymphoma (MCL): Phase II clinical results. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.2608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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22
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Vigil CE, Ayala E, Sokol L. Autologous stem cell transplant in peripheral T cell lymphomas: Single institution 10-year retrospective analysis. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e19538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e19538 Background: Peripheral T-cell lymphoma is a rare entitydisease, compromising 10% of non-Hodgkin's lymphoma worldwide and 5% of all lymphoid neoplasms in the United States. The long-term survival of conventional therapies has led the exploration of alternatives. High-dose chemotherapy followed by autologous haematopoietic stem cell transplantation, has been explored in recent years with little experiences. We are reporting our single-institute data in this population. Methods: A retrospective analysis on patients with diagnosis of peripheral T-cell lymphoma receiving autologous stem cell transplant was conducted (January 1997 to July 2008). The patients were stratified according to their International Prognostic Index (IPI), disease status at the time of transplant and histology type. Results: Twenty-nine subjects were identified, with a median age of 51; 13 patients had Anaplastic T cell, 18 patient had PTCL-nos, and 6 patients with angioimmunoblastic T cell lymphoma. Seventeen patients (58.62%) presented with an aa IPI score greater than 2.4 patients were in complete remission, 15 at first relapse, 4 in greater than 1 episode, and 6 with refractory disease at the time of transplantion.Kaplan Meier overall survival (OS) 72 and relapse free survival (RFS) was 62 at 1 year respectively. A multivariate analysis and new risk stratification based on the IPI score system and disease status at time of transplant were employed. We found that the lower risk category demonstrated a higher likelihood of longer survival HR 3.4. However, such outcome was not statistically significant (p = 0.1360). Conclusions: The status at time of transplant with new methods for evaluation of minimal residual disease may help in assessing outcome. Larger prospective studies investigating innovative regimens is warranted. No significant financial relationships to disclose.
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Affiliation(s)
- C. E. Vigil
- H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - E. Ayala
- H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
| | - L. Sokol
- H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL
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23
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Svajdler M, Bohus P, Baumöhlová H, Sokol L, Bielek J. [Epithelioid hemangioma of the foot]. Cesk Patol 2006; 42:86-90. [PMID: 16715634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Epithelioid hemangioma (angiolymphoid hyperplasia with eosinophilia, EH/ALHE) is a rare benign angioproliferative lesion which typically occurs in the region of the head and neck. In the literature, occurence on the extremity is only rarely described. A case of multiple occurence of EH/ALHE in the skin of the toes and metatarsal bone with osteolysis is reported. Occurence on the extremity, superficial and deep affection and some "atypical" microscopic features may cause diagnostic dilemma. The key diagnostic features of EH/ALHE are vascular channels lined with epithelioid endothelial cells, surrounding layer of myopericytes, absence of atypia and mitotic activity and characteristic inflammation. Immunohistochemistry may be helpful in settling the diagnosis.
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Affiliation(s)
- M Svajdler
- Oddelenie patológie, Fakultná nemocnica L. Pasteura, Kosice.
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24
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Nagy V, Schneider H, Valanský L, Sokol L. Sarcomatous Dedifferentiated Renal Cell Carcinoma Mimicking a Severe Purulent Kidney Infection. Urol Int 2006; 76:77-81. [PMID: 16401926 DOI: 10.1159/000089740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2005] [Accepted: 07/19/2005] [Indexed: 11/19/2022]
Abstract
Sarcomatous renal cell carcinomas (SRCCs) originate from a dedifferentiation of renal cell carcinoma (RCC). They are characterized by an aggressive course and very poor prognosis. Less known is their ability to imitate inflammatory diseases of the kidney. The aim of the study was to outline the less usual symptoms of SRCCs in a retrospective analysis of 180 patients operated for RCC in 1997-2001. In 11 (6.1%) patients (8 men and 3 women, age 40-76 years, mean age 60 years) SRCC was present. The pTNM classification, results of histological examination, the stage of RCC dedifferentiation and survival after the operation are presented. In almost every patient SRCC was diagnosed at a late stage with combined histological variants of RCC. Survival of the patients after the operation ranged from 1 to 19 (average 8.8) months. In 2 patients an atypical clinical picture imitated abscess of the kidney and calculous pyonephrosis. The authors warn that in spite of the clinical signs of inflammatory disease of the kidneys, a tumorous origin should be excluded. In doubtful cases a quick peroperative biopsy and histology should be performed. Sometimes only a definitive histological examination can reveal the tumorous origin of the disease.
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Affiliation(s)
- V Nagy
- Department of Urology, Faculty of Medicine, University of P.J. Safárik, Kosice, Slovak Republic.
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25
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Wagnerova M, Andrasina I, Sokol L, Jutka K, Berc A, Packan T, Matula P. Efficacy, tolerance and immunohistological analysis (IHA) in the group of 52 patients in inflammatory stage IIIB breast cancer (IBC) treated with F-FEC regimen. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- M. Wagnerova
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
| | - I. Andrasina
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
| | - L. Sokol
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
| | - K. Jutka
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
| | - A. Berc
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
| | - T. Packan
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
| | - P. Matula
- Dept of Radiotherapy and Oncology, VOU Kosice, Kosice, Slovakia; Dept of Pathology Univ. Hosp Tr. SNP 1, Kosice, Kosice, Slovakia
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26
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Zámecník M, Mukensnabl P, Sokol L, Michal M. Perineurial cells and nerve axons in gastrointestinal schwannomas: a similarity with neurofibromas. An immunohistochemical study of eight cases. Cesk Patol 2004; 40:150-3. [PMID: 15645849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Gastrointestinal schwannoma (GIS) is a distinctive and extremely rare lesion showing some differences from conventional soft tissue schwannoma and some similarities with common soft tissue neurofibroma. Soft tissue neurofibromas and schwannomas differ by contents of specific types of nerve sheath cells, such as Schwann cells, perineurial cells and CD34+ cells. To compare GIS with these soft tissue lesions, eight cases of typical GIS were studied immunohistochemically to evaluate their nerve sheath cell types. Epithelial membrane antigen (EMA) and claudin-1 as perineurial cell markers, and neurofilament protein as a marker for intratumoral axons were used. In addition, the tumors were stained for cytokeratin, CD117 (C-KIT), alpha-muscle specific actin, S100 protein and CD34. EMA- and claudin-positive cells were seen in 2 (25%) and one lesion, respectively, thus resembling cellular composition of neurofibroma. Intratumoral neurofilament protein positive axons otherwise typical of neurofibroma were found inside 4 tumors (50%). CD34 positivity was found in 6 tumors (75%) and often revealed a diffuse pattern as seen in neurofibroma and not a zonal pattern as described in schwannomas. These results show that GIS has some features that are more typical for neurofibroma than for conventional schwannoma. In surgical pathology practice, a finding of intratumoral axons and positivity for claudin-1 and especially for EMA should not preclude diagnosis of GIS.
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Affiliation(s)
- M Zámecník
- Sikl's Department of Pathology, Charles University, Pilsen, Czech Republic.
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27
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Abstract
Adrenal myelolipoma is an uncommon, benign and hormonally inactive tumor. Most lesions are asymptomatic and usually are discovered incidentally at autopsy studies. Authors report on 6 patients (5 women, 1 man) with adrenal myelolipomas (5 right, 1 left), analyze their morphological findings and association with an adrenal hormonal overproduction. Five of the patients underwent surgery because of tumor size, in 3 of them histological evaluation confirmed myelolipoma and in 2 cases an adrenocortical adenoma with foci of myelolipoma. All the patients were asymptomatic and in 4 cases hormonal overproduction was not found. One female patient has oveproduction of dehydroepiandrosteron-sulphate (DHEAS) indicating a 3beta hydroxylase deficiency in this tumor and 1 patient has primary aldosteronism with a histological finding of an association of adrenocortical adenoma with foci of myelolipoma. Neither Cushings syndrome nor congenital adrenal hyperplasia were present in our group of patients.
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Affiliation(s)
- H Wagnerová
- Department of Internal Medicine, Faculty Hospital Kosice, 04011, Slovak Republic.
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28
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Hes O, Hora M, Perez-Montiel DM, Suster S, Alvarado CI, Curík R, Sokol L, Ondic O, Mikulástík J, Betlach J, Peychl L, Hrabal P, Kodet R, Straka L, Ferák I, Michal M, Kastner J, Chudácek Z. [Spindle cell and cuboidal renal cell carcinoma (loopoma). 10 case reports]. Cas Lek Cesk 2004; 143:169-73. [PMID: 15134035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
BACKGROUND Current classification systems of neoplasms arising from renal parenchyma distinguish 5 categories of renal cell carcinoma (RCC), i.e. conventional RCC, papillary RCC, chromophobe RCC, collecting duct/medullary RCC and unclassified RCC. We present 13 cases of unusual and unclassified spindle and cuboidal renal cell carcinomas. METHODS AND RESULTS The studied group consisted of 13 patients (7 men and 6 women). They ranged in age from 22 to 65 years (mean 57.3). Generally, the tumours were well circumscribed and confined to the kidney, whitish to grey on section with a diameter 4.5-13 cm (mean 8.6 cm). One patient was investigated for loin pain and nocturia. Three patients had staghorn nephrolithiasis and vague sonographic findings in renal parenchyma. In one patient the renal tumour was found when examined on follow-up examination for prostatic adenocarcinoma. None of our patients was known to have elevated levels of parathyroid hormone due to hyperplasia, adenoma or carcinoma of the parathyroid gland. Clinical follow-up of the patients ranged from 9 months to 8 years (mean 2.3 years). Microscopically, the tumours were composed of two main populations of cells: flattened, spindle cells with sparse cytoplasm and small cuboidal cells with clear to light eosinophilic cytoplasm. Eight patients are currently well without signs of recurrence or metastasis, one had metastasis in the regional lymph node at the time of nephrectomy, one died of unrelated cause, and three were lost to follow-up. CONCLUSIONS We present 13 cases of unclassified RCC. Our cases were histologically, immunohistochemically and ultrastructurally similar to the hitherto reported case reports of this variant of RCC. It is obvious, that that variant of RCC should be recognised as a new subtype of RCC.
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Affiliation(s)
- O Hes
- Oddĕlení speciální diagnostiky SPAU FN, Plzen.
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29
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Hes O, Hora M, Perez-Montiel DM, Suster S, Curík R, Sokol L, Ondic O, Mikulástík J, Betlach J, Peychl L, Hrabal P, Kodet R, Straka L, Ferák I, Vrabec V, Michal M. Spindle and cuboidal renal cell carcinoma, a tumour having frequent association with nephrolithiasis: report of 11 cases including a case with hybrid conventional renal cell carcinoma/ spindle and cuboidal renal cell carcinoma components. Histopathology 2002; 41:549-55. [PMID: 12460208 DOI: 10.1046/j.1365-2559.2002.01515.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS We present the largest series of an unclassified subtype of renal cell carcinoma, which seems to be a distinct morphological entity and which is sometimes designated as spindle and cuboidal renal cell carcinoma. METHODS AND RESULTS Eleven cases of spindle and cuboidal renal cell carcinoma were found among 7000 primary renal cell tumours in Pilsen's routine and consultation files. The patients were five men and six women. They ranged in age from 22 to 65 years (mean 56.8). Microscopically, the tumours were composed of two main populations of cells. First, the preponderant type of cells was formed by flattened, spindle cells with sparse cytoplasm. The second cell type was a small cuboidal cell with clear to light eosinophilic cytoplasm. Spindle-shaped cells were arranged in a fascicular pattern often reminiscent of low-grade smooth muscle tumours. Solid areas of spindle cells were also present. Small cuboidal cells formed sparse tubular structures lined by a row of single cells. In addition to all previous published cases of spindle and cuboidal renal cell carcinoma we observed an association of nephrolithiasis in our cases. It was seen in 3/11 of our patients. A previously unreported feature is the occurrence of a conventional renal cell carcinoma component in one of our cases. Seven of our patients are currently well without signs of recurrence or metastasis, one had metastasis in a regional lymph node at the time of nephrectomy, one died of an unrelated condition, and two were lost to follow-up. CONCLUSIONS We present 11 cases of spindle and cuboidal renal cell carcinoma, which is believed to be a distinctive morphological entity. Our cases were histologically, immunohistochemically and ultrastructurally similar to the previously reported cases of spindle and cuboidal renal cell carcinoma. In contrast to all previously reported cases of spindle and cuboidal renal cell carcinoma, we observed an association with nephrolithiasis in three of our cases; moreover, one of our tumours had a conventional renal cell carcinoma component and another revealed a metastatic focus in a regional lymph node. None of our patients died of the disease. This study confirms that spindle and cuboidal renal cell carcinoma has a low malignant potential.
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Affiliation(s)
- O Hes
- Department of Pathology and Department of Urology, Charles University Hospital Plzen, Czech Republic
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30
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Sokol L, Garcia B, Rodriguez J, West M, Johnson K. Using data mining to find fraud in HCFA health care claims. Top Health Inf Manage 2001; 22:1-13. [PMID: 11680273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Data mining can be/used to detect health care fraud and abuse through visualization of very large data sets to isolate new and unusual patterns of activity. Data mining has allowed better direction and use of health care fraud detection and investigative resources by recognizing and quantifying the underlying indicators of fraudulent claims, fraudulent providers, and fraudulent beneficiaries. A large amount of work must be performed prior to the actual data mining. These precursory tasks include: customer discussions, data extraction and cleaning, transformation of the database, and auditing (basic statistics and visualization of the information) of the data. This paper describes the tasks performed in support of a project for HCFA (Health Care Financing Administration).
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Affiliation(s)
- L Sokol
- Veridian Corporation, Fairfax, Virginia, USA
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Lazurova I, Wagnerova H, Zachar L, Schwartz P, Trejbal D, Bober J, Sokol L, Kovacova A. [Hormonal and morphologic characteristics of adrenal incidentalomas]. BRATISL MED J 2001; 101:499-502. [PMID: 11187053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The authors analyse hormonal and morphological characteristics of adrenal incidentalomas, i.e. pathological adrenal masses accidentally found on CT scan performed due to extraadrenal causes of other causes of adrenal pathology. The group of patients was consisted by 42 patients at the age 24-79 years (27 females and 15 males). The most frequent clinical symptoms included arterial hypertension, diabetes mellitus and obesity. CT examinations revealed 36 cases of unilateral lesions (in 21 cases the lesions were localised on the right and in 15 cases on the left) and 6 bilateral lesions. The size of adrenal masses ranged from 7 mm to 12 cm. The CT examination helped in characterising myelolipomas in 3 cases, cysts in two cases, and pre-assuming malignity in 6 cases. Hormonal analyses have revealed primary aldosteronism in 2 cases, subclinical hypercortisolism in 1, steroid enzymopathy in 2 and secondary hyperaldosteronism in 2 patients. No patient had catecholamine overproduction. 19 patients were indicated for adrenalectomy with the following histological findings.: adenoma (n = 5), cyst (n = 2), myelolipoma (n = 3), carcinoma (n = 3), feochromocytoma, ganglioneuroma, metastases, lymphoma, sarcoidosis and pseudodrenal structure--Gravitz tumor (n = 1, respectively). The size of all neoplasms exceeded 3 cm, therefore the authors recommend adrenalectomy in incidentalomas with hormonal activity exceeding 3 cm in size. (Tab. 2, Fig. 1, Ref. 17.)
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Affiliation(s)
- I Lazurova
- IInd Department of Internal Medicine, Faculty of Medicine, Safarikiensis University, University Hospital, Kosice.
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32
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Sokol L. [Watteau, Marivaux, and fêtes galantes: in other words, what can happen in the garden?]. Biul Hist Sztuki 2001; 63:125-141. [PMID: 20020557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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33
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Lazurova I, Schwartz P, Trejbal D, Zachar M, Bober J, Sokol L, Wagnerova H, Trejbalova L, Valansky L. [Incidence of primary hyperaldosteronism in hospitalized patients with hypertension]. BRATISL MED J 1999; 100:200-3. [PMID: 10914143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
AIMS To detect the incidence of primary hyperaldosteronism (PH) in hospitalized hypertensive patients. METHODS Authors assessed plasma renin activity (PRA) and plasma aldosterone (PA) in 100 patients with arterial hypertension hospitalized at the II. department of Internal medicine in Kosice because of resistance to ambulatory treatment, eventually with the aim of differential diagnosis of arterial hypertension. RESULTS From 100 hypertensive patients 90 (90%) have had essential hypertension (EH), 8 (8%) PH, 2 (2%) renovascular hypertension and 1 patient (1%) pheochromocytoma. Aldosterone-renin ratio was in PH patients 10-fold higher comparing with EH patients. From the 8 patients with PH 4 have had adenoma and in 3 patients hyperplasia was diagnosed with the use of CT or histology, 1 case was idiopathic hyperaldosteronism without CT hyperplasia evidence. In all PH patients the level of kalemia was less than 4 mmol/l, i.e. kalemia 4.0 mmol/l has 100% sensitivity for PH detection. CONCLUSION Introduction of PRA and PA examinations in the diagnostic process of arterial hypertension led to more frequent diagnosis of PH, which may probably represent the most frequent form of endocrine hypertension. Although ARR is a reliable test for PH screening, routine ARR examinations in ambulatory practice are technically complicated and connected with high costs. Increasing the threshold level of kalemia for PH detection led to higher sensitivity and that is why the authors consider ARR examination rational in every patient with kalemia level less than 4 mmol/l. (Tab. 4, Ref. 18.)
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Affiliation(s)
- I Lazurova
- IInd Dpt of Internal Medicine, University Hospital, Kosice, Slovakia
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34
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Plank L, Szépe P, Adamkov M, Sokol L, Durcanský D. [Primary hepatosplenic T-cell (gamma delta) lymphoma: morphology and immunohistochemistry in 3 cases]. Cesk Patol 1999; 35:55-62. [PMID: 11038656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
We analyzed one autopsy case and two biopsy cases of primary (hepato-)splenic lymphoma, diagnosed in numerous trephine bone marrow, spleen and liver biopsies. It is a distinctive "new" type of a rare T-cell lymphoma characterized usually by rearrangement of gamma delta chains of T-cell receptor. Morphologically, the lymphoma is composed of a cytologically monotonous proliferation of small to medium sized lymphocytes, with diagnostically characteristic intrasinusoidal spread in the bone marrow, spleen and liver. The involvement of the lymph nodes is always absent. Immunohistochemically, the tumor cells expressed constant CD3 positivity and negativity for B- and myelomonocytic antigens, together with an inconstant coexpression of CD43 and CD45RO. In contrast to other and more common primary B-cell splenic lymphomas, its biological behaviour is more aggressive.
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Affiliation(s)
- L Plank
- Ustav patologickej anatómie JLF UK a MFN, Martin
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35
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Kralovics R, Sokol L, Prchal JT. Absence of polycythemia in a child with a unique erythropoietin receptor mutation in a family with autosomal dominant primary polycythemia. J Clin Invest 1998; 102:124-9. [PMID: 9649565 PMCID: PMC509073 DOI: 10.1172/jci2886] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Primary familial and congenital polycythemia (PFCP or familial erythrocytosis) is a rare proliferative disorder of erythroid progenitor cells, characterized by elevated erythrocyte mass and hemoglobin concentration, hypersensitivity of erythroid progenitors to erythropoietin (EPO), and autosomal dominant inheritance or sporadic occurrence. A number of EPO receptor (EPOR) mutations were found in subjects with PFCP; most of these mutations resulted in the truncation of the COOH-terminal of the EPOR protein. We studied a family with autosomal dominant inheritance of PFCP in which four subjects were affected in three generations. We screened the affected individuals for EPOR gene mutations using SSCP analysis and found a C5964G mutation in exon VIII that changes tyrosine codon 426 to a translation termination codon resulting in an EPOR protein truncated by 83 amino acids. The mutant C5964G-EPOR exhibited hypersensitive EPO-dependent proliferation compared to the wild-type EPOR when tested in a murine interleukin-3-dependent myeloid cell line (FDC-P1). We also examined the segregation of the mutation with PFCP in the family and found that a child in the third generation inherited the mutation without having laboratory evidence of polycythemia. Further in vitro analysis of the erythroid progenitor cells of this affected child revealed that the progenitor cells were hypersensitive to EPO (a hallmark of PFCP) suggesting the presence of the disease at the level of progenitor cells. Failure of this child to develop polycythemia suggests the existence of as yet unidentified environmental or genetic factors that may suppress disease development.
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Affiliation(s)
- R Kralovics
- University of Alabama at Birmingham, Division of Hematology/Oncology, Birmingham, Alabama 35294-0006, USA.
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36
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Lazurova I, Sokol L, Trejbal D, Bober J, Zachar M, Pajtasova D. Aldosterone-producing adenoma associated with foci of myelolipoma. Wien Klin Wochenschr 1998; 110:379-81. [PMID: 9654694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The simultaneous occurrence of adrenal myelolipoma and endocrine disorders is rare. Myelolipomas have occasionally been found in patients with Cushing's syndrome, pheochromocytoma and hyperthyroidism. A recently published study described one well-documented case of adrenal adenoma and myelolipoma in a patient with Conn's syndrome. In this report the patient had a one-year history of treated hyperthyroidism and diagnosed aldosterone-producing adenoma. A disseminated adrenal myelolipoma was found within the adrenocortical adenoma. To our knowledge this histological finding has not been previously reported in association with both Conn's syndrome and hyperthyroidism.
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Affiliation(s)
- I Lazurova
- Department of Internal Medicine, Pathology and Surgery, Faculty Hospital, Kosice, Slovak Republic
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37
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Abstract
A 16-year-old boy is presented with the problem of free micturition, having a palpable, painless tumour spreading from the symphysis to the umbilicus. Cystoscopy revealed an impression in the vertex of the urinary bladder covered by the inflamed mucous membrane with a bulbar oedema. Fistulography showed transitional urachus persistens communicating with the terminal loops of the ileum. During surgery, a solid, fan-like fibrous connective tissue was removed, together with the vertex of the urinary bladder and peritoneum. Adhering loops of the terminal ileum were sharply separated and sutured. Histopathological examination confirmed actinomycosis of the urachus persistens penetrating into the ileum.
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Affiliation(s)
- V Nagy
- Clinic of Urology, Safarik University School of Medicine, Kosice, Slovakia
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38
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Kralovics R, Sokol L, Broxson EH, Prchal JT. The erythropoietin receptor gene is not linked with the polycythemia phenotype in a family with autosomal dominant primary polycythemia. Proc Assoc Am Physicians 1997; 109:580-5. [PMID: 9394420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Primary familial and congenital polycythemia (PFCP or familial erythrocytosis) is a rare hematological disorder with either autosomal-dominant inheritance or sporadic occurrence. It is characterized by an increased proliferation of erythroid precursors that results in an elevated red blood cell mass. In some of the PFCP families, the disease phenotype is associated with mutations of the erythropoietin receptor (EPOR). Mutations in other genes are likely to cause PFCP as well, but no evidence so far has been provided to support this contention. In this study, we present a family in which 6 of 15 family members were affected in three generations. We screened exon VIII of the EPOR gene for mutations and found a C-->T substitution (C6148T) in the maternal grandmother of the propositus. The mutated allele of the affected grandmother was not passed to either of her two affected children or to her one healthy child; thus, the disease phenotype was not linked to the C6148T mutation in this family. Further examination of the inheritance of the EPOR gene alleles and sequence analysis ruled out linkage between the disease phenotype and the EPOR gene; therefore, an abnormality in another gene must be the cause of PFCP in this particular family. In three affected family members tested, erythroid progenitors were hypersensitive to EPO. This in vitro behavior of the progenitors confirms the diagnosis of PFCP in these subjects. Moreover, it suggests a dominant lesion of an as-yet unidentified gene, either at the level of the EPOR-signaling pathway or another erythropoiesis-regulating pathway that may be responsible for enhanced proliferation of the erythroid progenitors.
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Affiliation(s)
- R Kralovics
- Division of Hematology and Oncology, University of Alabama at Birmingham 35294, USA
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39
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Abstract
We report two cases of a previously unrecognized neoplasm, each characterized by prominent lobular configuration in the subcutaneous tissue. Within the neoplasms were distinctive garland-shaped structures composed of glial fibrillary acidic protein (GFAP) positive cells with indistinct borders, encased in concentric loops of fine collage fibers. In some areas, the neoplastic cells were distributed in small lacunae. The extracellular space between the collagenous tissue and the cells was filled with copious myxoid matrix. One of the neoplasms also demonstrated areas with spindle cells which resembled leiomyoma. Immunohistochemistry was negative for smooth muscle actin (1A4), muscle actin (HHF35), S-100 protein, desmin, cytokeratin, KP1, and epithelial membrane antigen (EMA.) Currently, both patients are free of recurrence or metastasis 2 and 4 years after primary surgical excision. The neoplasms, which we term benign polymorphous mesenchymal tumor of soft parts (BPMT), should be distinguished from ossifying fibromyxoid tumor of soft parts, extraskeletal mesenchymal chondrosarcoma, neoplasms arising in ectopic breast tissue and mixed tumor of the skin.
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Affiliation(s)
- M Michal
- Department of Pathology, Medical Faculty, Charles University, Pilsen, Czech Republic
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40
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Sergeyeva A, Gordeuk VR, Tokarev YN, Sokol L, Prchal JF, Prchal JT. Congenital polycythemia in Chuvashia. Blood 1997; 89:2148-54. [PMID: 9058738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Familial and congenital polycythemia, not due to high oxygen affinity hemoglobin or reduced 2,3-diphosphoglycerate in erythrocytes, is common in the Chuvash population of the Russian Federation. Hundreds of individuals appear to be affected in an autosomal recessive pattern. We studied six polycythemic Chuvash patients <20 years of age from unrelated families and 12 first-degree family members. Hemoglobins were markedly elevated in the index subjects (mean +/- standard deviation [SD] of 22.6 +/- 1.4 g/dL), while platelet and white blood cell counts were normal. Although performed in only three of the index subjects, serum erythropoietin concentrations determined by both radioimmune and functional assays were significantly higher in polycythemic patients compared with first-degree family members with normal hemoglobin concentrations. Southern blot analysis of the Bgl 2 erythropoietin gene polymorphism showed that one polycythemic subject was a heterozygote, suggesting the absence of linkage of polycythemia with the erythropoietin gene, assuming autosomal recessive inheritance. Polymerase chain reaction (PCR) amplification of the GGAA and GA minisatellite polymorphic regions of the erythropoietin receptor gene showed no evidence of linkage of phenotype with this gene. We conclude that Chuvash polycythemia may represent a secondary form of familial and congenital polycythemia of as yet unknown etiology. This condition is the only endemic form of familial and congenital polycythemia described.
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Affiliation(s)
- A Sergeyeva
- Medical Institute of the Chuvash State University, Cheboksary, Russia
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41
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Prchal JT, Sokol L. "Benign erythrocytosis" and other familial and congenital polycythemias. Eur J Haematol Suppl 1996; 57:263-8. [PMID: 8982288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The term familial and congenital polycythemia encompasses a heterogeneous group of disorders with the common characteristic of an absolute increased red cell mass since birth and/or similar phenotype also present in relatives. In the last 2 decades the differential diagnosis between primary and secondary familial polycythemias became more physiologically relevant as new sensitive techniques, such as accurate measurements of serum erythropoietin (S-EPO) concentration by radioimmunoassay (RIA) or ELISA, and assessment of growth of erythroid progenitor cells in vitro became available. Consequently, correct classification of many older previous reports of familial polycythemias is difficult. While familial secondary polycythemias due to high oxygen affinity hemoglobin mutants are not infrequent and have been well delineated in terms of molecular pathophysiology and phenotype during the last 3 decades, those secondary familial polycythemias due to 2,3 DPG deficiency are very rare. Familial and congenital polycythemias with increased EPO concentration and normal arterial oxygen saturation and oxygen dissociation kinetics represent an intriguing group of disorders wherein the molecular lesions remain obscure; however, in some instances a possibility of abnormal oxygen sensing pathway involving hypoxia inducible factor-1 (HIF-1) open an intriguing yet unexplored area of hematology and biology. In contrast the primary familial and congenital polycythemia (PFCP) has been only recently recognized (the first report published in 1977). Various designations have been used in the past to describe PFCP, a rare clinical syndrome, including: benign familial erythrocytosis, polycythemia vera of childhood, primary polycythemia, pure erythrocytosis, etc. Some of these terms stressed the relatively benign, non-progressive course of the disease with a normal lifespan of affected subjects; however, the apparent benignity of some of these disorders has been questioned. These disorders are familial and/or congenital, and the clinical and laboratory evidence of secondary polycythemias must be excluded. Only about 2 dozen familial and sporadic cases with PFCP have been reported. However, the mutations of erythropoietin receptor (EPOR) found in some of families with PFCP represent the only defined molecular defect of primary polycythemic phenotypes. All reported PFCP associated EPOR mutations result in truncation of its intracytoplasmic C-terminal domain which negatively regulates the EPO/EPOR signal transduction pathway. Subjects with these mutations have decreased or normal S-EPO and increased sensitivity of erythroid progenitor cells to low EPO concentrations in in vitro assays. Mutations of other genes involved in post EPOR signaling pathway such as JAK-2, HCP and STAT 5 may also play a causative role in pathogenesis of some of PFCP families where mutation of EPOR was not found.
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Affiliation(s)
- J T Prchal
- Department of Medicine, University Alabama at Birmingham 35294, USA.
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42
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Nagy V, Valanský L, Sokol L, Petrovicová J. [Prostate cancer: palpation versus ultrasonography]. Rozhl Chir 1996; 75:322-6. [PMID: 8769028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The authors compared in a group of 273 symptomatic patients the effectiveness of palpation and transabdominal USG of the prostate and in a group of 162 patients palpation and transrectal USG of the prostate in diagnosing of prostate carcinoma. Histopathological correlation was available in 203 (74.4%) patients, all of them examined by transrectal USG. From the whole group of 273 patients prostate carcinoma was confirmed in 69 (25.3%). Based on USG examination alone prostate cancer was proved by histopathological methods in three (4.3%) patients with a negative finding on palpation. A disappointment of the USG method was that it did not prove possible to diagnose before operation incidental cancer in 14 (20.3%) patients with BPH. USG made it possible to define more accurately the stage of cancer in groups T2 and T3. The effectiveness was assessed as follows: sensitivity, specificity and total accuracy during palpation was 75.4%, 88.8%, 84.2%, in transabdominal USG: 78.3%, 91.8%, 87.2% and in transrectal USG of the prostated 97.7%, 90.7% and the overall accuracy 92.6%. Despite these results for screening of patients with prostate cancer USG of the prostate can be recommended only after palpation and PSA examination.
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Affiliation(s)
- V Nagy
- Urologická klinika LF UPJS, Kosice
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43
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Danihel L, Sokol L, Breitenecker G, Korbel' M, Porubský J, Líska J, Zaviacic T. [Extrauterine choriocarcinoma--a rare form of gestational trophoblastic disease]. BRATISL MED J 1996; 97:279-83. [PMID: 8705325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Choriocarcinoma represents the most serious form of trophoblast gestation disease. In the majority of cases the carcinomatous tissues fill out the uterine cavity, or they grow in a form of nodes deep in the uterine wall. The primary extrauterine localization of this tumour is very rare. The authors describe two cases of choriocarcinomas with tubal or ovarian localization. (Fig. 4, Ref. 19.)
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Affiliation(s)
- L Danihel
- Ustav patologickej anatómie LFUK, Bratislave, Slovakia
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44
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Abstract
We describe a case of the salivary gland anlage tumor (congenital pleomorphic adenoma). The tumor arose in the nasopharynx as a pedunculated mass. Microscopically most of the tumor contained large necrotic areas which revealed squamous cell metaplasia resulting in the formation of large cysts. This feature has never been described previously in this tumor and might lead to an erroneous diagnosis.
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Affiliation(s)
- M Michal
- Department of Pathology, Medical Faculty, Charles University, Pilsen, Czech Republic
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45
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Trejbal D, Gonsorcíková V, Lazúrová I, Vajó J, Pálová E, Trejbalová L, Sokol L, Zimácek J. [The clinical picture of latent hypothyroidism in women]. Vnitr Lek 1996; 42:162-165. [PMID: 8686203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The authors investigated the most frequent clinical symptoms in a group of 132 women with latent hypothyroidism (mean age 40.2 years, incl. 102 women younger than 45 years). They assessed the diagnosis on the basis of an excessive TSH response after administration of 0.2 mg thyreoliberin by the i.v. route (TRH test), while the thyroxine values were normal (TSH 0 min.: 4.93 +/- 3.55, TSH after 20 min. following TRH: 39.27 +/- 18.28 mIU/ml, T4: 102.0 +/- 25.02 nmol/l). Forty-one patients (31%) had goitrectomy in the case-history. USG examination of 70 patients revealed goitre in 13 (18.6%) reduced echogenity of the thyroid gland in 20 (28.6%) and microcysts in 31 (44.2%) of the patients. Analysis of the clinical symptoms revealed manifestations of a depressive symptomatology in 56 patients (40.3%), benign mammary dysplasia in 39 patients (29%). In the subgroup of women younger than 45 years an impaired menstrual cycle was recorded in 49 (48%) and galactorrhoea in 10 patients (9.8%). After thyroid substitution (L-thyroxine 50 micrograms/day) they observed in the majority normalization of the menstrual cycle and partial improvement of depressive manifestations.
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46
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Sokol L, Prchal JT. Human genome--chromosome no. 19. Cas Lek Cesk 1995; 134:625-9. [PMID: 7585875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Chromosome 19 is short but has higher relative density of genes than other chromosomes. Increasing number of the genes coding for proteins implicated in the pathogenesis of various human diseases have been mapped on chromosome 19. Mutations of low density lipoprotein receptor (LDL-R) result in one of the most frequent mendelian inherited disorder-familial hypercholesterolemia. Mutations of insulin receptor (INSR) are causative for rare syndromes of insulin resistance and some of non insulin dependent diabetes mellitus (NIDDM). Erythropoietin receptor (EPOR) mutations are causative for rare primary familial and congenital polycythemias (PFCP). Defects of one of the largest gene in the human genome RYR 1 (ryanodine receptor gene) (> 240 kb in size) accounts for majority of malignant hyperthermia (MH) and central core disease (CCD). All these disorders represent group of receptor diseases. The amplification of GCT trinucleotide repeats in myotonic dystrophy protein kinase (DMPK) gene is causative for myotonic dystrophy (DM) and represents a new class of human gene mutations: trinucleotide repeat mutations. Apolipoprotein E (APOE) locus plays a role in pathogenesis of the late onset familial Alzheimer's disease. Translocation of EA2 gene which encodes two helix-loop-helix (HLH) transcription proteins and its fusion with PBXI or hepatic leukemia factor (HLF) leads to the leukemogenesis in subgroup of ALL. Interestingly adeno-associated virus (AAV), currently widely used as vector for gene therapy has unique capability of specific integration into human chromosome 19q.
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Affiliation(s)
- L Sokol
- Department of Medicine, University of Alabama at Birmingham, USA
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47
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Plank L, Sokol L, Adamkov M, Szépe P, Pokorná E, Strachilová J, Ocková J, Sekerková S, Balková R. [Monocytoid B-lymphocyte lymphoma: a new type within the spectrum of non-Hodgkin's B-cell lymphoma]. BRATISL MED J 1995; 96:361-7. [PMID: 7552415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Clonal proliferation of monocytoid B-lymphocytes (MBLy)--monocytoid B-cell lymphoma (MBCL) represents a "new" type of lymphoma within the spectrum of B-cell malignancies. OBJECTIVES The aim of the study was to evaluate the possibilities of a routine histological and immunohistochemical diagnosis of MBCL. METHODS Three cases of MBCL diagnosed in peripheral lymph nodes (n = 2) and in mammary gland with infiltration of regional lymph node (n = 1) were analyzed both histologically and immunohistochemically using a panel approach (Ig chains, CD30 antigen, markers of B-cells, T-cells and of monocytes/histiocytes). RESULTS Morphological appearance of neoplastic cells of MBCL is identical to that of MBLy in reactive conditions--kidney-shaped nuclei, bright clear PAS-negative cytoplasm, and small inconspicuous nucleoli. CONCLUSIONS Morphological appearance together with immunophenotypic results (positivity of CD20 and Ki-B5, negativity of CD3, CD43, CD45RO, and of lysozyme, negativity of CD30) are considered to represent sufficient diagnostic criteria of MBCL, including its differential diagnosis of other B-cell low grade malignancies. An increase of large cell type MBLy might represent a feature of a secondary blastic transformation of MBCL. (Tab. 2, Fig. 5, Ref. 27.)
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Affiliation(s)
- L Plank
- Institute of Pathology, Jessenius School of Medicine, Comenius University, Martin, Slovakia
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48
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Sokol L, Luhovy M, Guan Y, Prchal JF, Semenza GL, Prchal JT. Primary familial polycythemia: a frameshift mutation in the erythropoietin receptor gene and increased sensitivity of erythroid progenitors to erythropoietin. Blood 1995; 86:15-22. [PMID: 7795221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Primary familial and congenital polycythemia (PFCP) is characterized by erythrocytosis with normal arterial PO2, blood P50, and serum erythropoietin (EPO) levels. In two PFCP families EPO receptor (EPOR) polymorphisms cosegregated with PFCP. A heterozygous insertion of G at EPOR nucleotide 5975 was identified in genomic DNA from polycythemic members of family no. 2. 5974insG shifts the reading frame at codon 430, predicting amino acid substitutions and truncation of the last 64 amino acids. Wild-type and mutant EPOR transcripts were detected in erythroid progenitors from affected individuals. Burst-forming units-erythroid from patients exhibited increased colony size and sensitivity to EPO. Transfected Ba/F3 cells expressing EPOR 5974insG exhibited increased EPO sensitivity compared with cells expressing wild-type EPOR. The functional effect of this EPOR mutation was directly compared with the other C-terminal mutations reported in unrelated PFCP families by expression in Ba/F3 cells. The transfected cells with another primary polycythemia associated EPOR mutant construct (G6002A) also exhibited increased sensitivity to EPO.
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Affiliation(s)
- L Sokol
- Division of Hematology/Oncology, University of Alabama at Birmingham 35294, USA
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49
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Busque L, Gilliland DG, Prchal JT, Sieff CA, Weinstein HJ, Sokol JM, Belickova M, Wayne AS, Zuckerman KS, Sokol L. Clonality in juvenile chronic myelogenous leukemia. Blood 1995; 85:21-30. [PMID: 7803795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Juvenile chronic myelogenous leukemia (JCML) is a myeloproliferative disease in which morbidity and mortality are primarily caused by nonhematopoietic organ failure from myelomonocytic infiltration or by failure of the normal bone marrow. Morphologic evidence of maturation arrest, karyotypic abnormalities, and progression to blast crisis are infrequent events. Viral infections and other reactive processes can initially mimic the clinical course of JCML, creating diagnostic problems. Because of the rarity of JCML and technical limitations, formal clonality studies have not been reported previously. Nine female JCML patients were identified by clinical criteria, characteristic 'spontaneous' in vitro cell growth, and negative cultures and titers for various viral agents. Peripheral blood and bone marrow samples were obtained at the time of diagnosis for cell separation and RNA and DNA isolation. To assess clonality, X-chromosome inactivation patterns were evaluated using three different, recently developed polymerase chain reaction-based clonality assays. All nine female JCML patients showed evidence for monoclonal origin of mononuclear cells at the time of diagnosis. Cell separation studies further traced the monoclonal origin back to at least the most primitive myeloid progenitor cell. Reversion to a polyclonal state was demonstrated after bone marrow transplant and also in one patient following treatment with 13-cis retinoic acid. This demonstration of clonality in JCML delineates it from the reactive processes and provides a basis for molecular genetic strategies to identify causally associated mutations.
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MESH Headings
- Adult
- Bone Marrow/pathology
- Bone Marrow Transplantation
- Cell Separation
- Child
- Child, Preschool
- Clone Cells/chemistry
- Clone Cells/pathology
- DNA/analysis
- DNA/metabolism
- Dosage Compensation, Genetic
- Female
- Glucosephosphate Dehydrogenase/genetics
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Middle Aged
- Phosphoglycerate Kinase/genetics
- Polymerase Chain Reaction
- Polymorphism, Genetic
- Receptors, Androgen/genetics
- Tretinoin/therapeutic use
- X Chromosome
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Affiliation(s)
- L Busque
- Division of Hematology-Oncology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
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