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Ganapathi KA, Nicolae A, Egan C, Geng H, Xi L, Pack SD, McFadden JR, Raffeld M, Jaffe ES, Pittaluga S. Peripheral T-cell lymphomas expressing CD30 and CD15 expand the spectrum of anaplastic large cell lymphoma, ALK-negative. Br J Haematol 2024. [PMID: 38613165 DOI: 10.1111/bjh.19442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024]
Abstract
Peripheral T-cell lymphomas (PTCL) are morphologically and biologically heterogeneous and a subset expresses CD30, including anaplastic large cell lymphomas (ALCL) and a minority of PTCL, not otherwise specified (PTCL, NOS). ALCL with ALK translocations (ALCL, ALK+) are readily identified by routine diagnostic methods, but differentiating ALCL without ALK translocation (ALCL, ALK-) and PTCL, NOS expressing CD30 (PTCL CD30+) can be challenging. Furthermore, rare PTCL co-express CD30 and CD15 (PTCL CD30+CD15+); some resemble ALCL, ALK- while others resemble classic Hodgkin lymphoma. To explore the relationship between PTCL CD30+CD15+ and ALCL, ALK-, we analysed 19 cases of PTCL with CD30 expression, previously diagnosed as ALCL, ALK- (nine cases) and PTCL CD30+CD15+ (10 cases) for DUSP22/IRF4 rearrangements, coding RNA expression and selected transcriptome analysis using the NanoString nCounter gene expression analysis platform. Unsupervised clustering showed no clear segregation between ALCL, ALK- and PTCL CD30+CD15+. Three cases previously classified as PTCL CD30+CD15+ showed DUSP22/IRF4 rearrangements, favouring a diagnosis of ALCL, ALK-. Our results suggest that cases previously designated PTCL CD30+CD15+, likely fall within the spectrum of ALCL, ALK-; additionally, a subset of ALCL, ALK- with DUSP22/IRF4 rearrangement expresses CD15, consistent with previous reports and expands the immunophenotypic spectrum of this lymphoma subgroup.
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Affiliation(s)
- Karthik A Ganapathi
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Alina Nicolae
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Caoimhe Egan
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Huimin Geng
- Department of Laboratory Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Liqiang Xi
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Svetlana D Pack
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Jason R McFadden
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Mark Raffeld
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Elaine S Jaffe
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
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Sakamoto K, Takatsuka I, Takemura T, Ono T, Nagakura Y, Pack SD, Nagao K, Honda T. Identification of skin-infiltrating donor lymphocytes in a case of pre-engraftment syndrome. J Dermatol 2023; 50:e282-e284. [PMID: 36938663 DOI: 10.1111/1346-8138.16785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 02/24/2023] [Accepted: 03/06/2023] [Indexed: 03/21/2023]
Affiliation(s)
- Keiko Sakamoto
- Department of Dermatology, Hamamatsu University School of Medicine, Shizuoka, Japan
- Cutaneous Leukocyte Biology Section, Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Ibuki Takatsuka
- Department of Hematology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Tomonari Takemura
- Department of Hematology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Takaaki Ono
- Central Clinical Facilities, Transfusion & Cell Therapy, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Yuka Nagakura
- Department of Pathology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Svetlana D Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Keisuke Nagao
- Cutaneous Leukocyte Biology Section, Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Tetsuya Honda
- Department of Dermatology, Hamamatsu University School of Medicine, Shizuoka, Japan
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Saksena A, Jain A, Pack SD, Kim J, Lee I, Tyagi M, Xi L, Pittaluga S, Raffeld M, Jaffe ES. Follicle Center Lymphoma (FCL) of the Lower Female Genital Tract (LFGT): A Novel Variant of Primary Cutaneous Follicle Center Lymphoma (PCFCL). Am J Surg Pathol 2023; 47:409-419. [PMID: 36461146 PMCID: PMC9974907 DOI: 10.1097/pas.0000000000002003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Primary cutaneous follicle center lymphoma has been distinguished from nodal follicular lymphoma (FL) based on genomic and clinical features. The nature of other extranodal FLs is not well defined. We report 15 cases of follicle center lymphoma involving the lower female genital tract. Cases were evaluated using an immunohistochemical panel for B-cell lymphoma, B-cell clonality, fluorescence in situ hybridization for BCL2 gene rearrangement, and next-generation sequencing. All patients had localized disease with no evidence of bone marrow involvement. Most cases (12/15, 80%) had a follicular pattern, at least focally. Large centrocytes were a prominent feature leading to concern for diffuse large B-cell lymphoma by referring pathologists. Neoplastic cells were positive for CD20 and BCL-6, while BCL-2 was positive in 2/15 (13%) cases. Fluorescence in situ hybridization for BCL2 gene rearrangement was negative in 10/11 (91%) cases. Next-generation sequencing performed in 10 cases revealed TNFRSF14 as the most frequently mutated gene in 6/10 (60%) cases. No case had CREBBP or KMT2D mutations as seen in nodal FL. None of the patients had progressive disease with durable complete remission achieved in 10/12 (83%) cases. The median follow-up period was 7.8 years (range: 0.2 to 20.5 y) with a 5-year overall survival of 100%. We conclude that follicle center lymphoma of the lower female genital tract is a novel variant of primary cutaneous follicle center lymphoma. Despite a frequent component of large cells, it is characterized by localized disease and low risk for dissemination. Awareness and recognition are important to distinguish these lesions from aggressive B-cell lymphomas.
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Affiliation(s)
- Annapurna Saksena
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Ashish Jain
- CCR Collaborative Bioinformatics Resource (CCBR), CCR, NCI, Bethesda, MD
- Advanced Biomedical Computational Science, Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Svetlana D. Pack
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Jung Kim
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Ina Lee
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Manoj Tyagi
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Liqiang Xi
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Mark Raffeld
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
| | - Elaine S. Jaffe
- Laboratory of Pathology, Center for Cancer Research (CCR), National Cancer Institute (NCI), NIH, Bethesda, MD
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Zhou T, Cheng J, Karrs J, Davies-Hill T, Pack SD, Xi L, Tyagi M, Kim J, Jaffe ES, Raffeld M, Pittaluga S. Clinicopathologic and Molecular Characterization of Epstein-Barr Virus-positive Plasmacytoma. Am J Surg Pathol 2022; 46:1364-1379. [PMID: 35650679 PMCID: PMC9481705 DOI: 10.1097/pas.0000000000001923] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Epstein-Barr virus (EBV)-positive plasmacytoma is a rare plasma cell neoplasm. It remains unclear whether EBV-positive plasmacytoma represents a distinct entity or a variant of plasmacytoma. It shares morphologic features with plasmablastic lymphoma (PBL) and may cause diagnostic uncertainty. To better understand EBV-positive plasmacytoma and explore diagnostic criteria, this study describes 19 cases of EBV-positive plasmacytoma, compared with 27 cases of EBV-negative plasmacytoma and 48 cases of EBV-positive PBL. We reviewed the clinicopathologic findings and performed immunohistochemistry, in situ hybridization for EBV, fluorescence in situ hybridization for MYC , and next-generation sequencing. We found that 63.2% of patients with EBV-positive plasmacytoma were immunocompromised. Anaplastic features were observed in 7/19 cases. MYC rearrangement was found in 25.0% of them, and extra copies of MYC in 81.3%. EBV-positive and EBV-negative plasmacytomas possessed similar clinicopathologic features, except more frequent cytologic atypia, bone involvement and MYC aberrations in the former group. The survival rate of patients with EBV-positive plasmacytoma was comparable to that of patients with EBV-negative plasmacytoma. In comparison to PBL, EBV-positive plasmacytoma is less commonly associated with a "starry-sky" appearance, necrosis, absence of light chain expression, and a high Ki67 index (>75%). The most recurrently mutated genes/signaling pathways in EBV-positive plasmacytoma are epigenetic regulators, MAPK pathway, and DNA damage response, while the most frequently reported mutations in PBL are not observed. Collectively, EBV-positive plasmacytoma should be regarded as a biological variant of plasmacytoma. Thorough morphologic examination remains the cornerstone for distinguishing EBV-positive plasmacytoma and PBL, and molecular studies can be a valuable complementary tool.
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Affiliation(s)
- Ting Zhou
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Jinjun Cheng
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Jeremiah Karrs
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Theresa Davies-Hill
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Svetlana D. Pack
- Molecular Diagnostics and Bioinformatics, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Liqiang Xi
- Molecular Diagnostics and Bioinformatics, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Manoj Tyagi
- Molecular Diagnostics and Bioinformatics, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Jung Kim
- Molecular Diagnostics and Bioinformatics, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Elaine S. Jaffe
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Mark Raffeld
- Molecular Diagnostics and Bioinformatics, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Stefania Pittaluga
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD
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Whittle S, Venkatramani R, Schönstein A, Pack SD, Alaggio R, Vokuhl C, Rudzinski ER, Wulf AL, Zin A, Gruver JR, Arnold MA, Merks JHM, Hettmer S, Koscielniak E, Barr FG, Hawkins DS, Bisogno G, Sparber-Sauer M. Congenital spindle cell rhabdomyosarcoma: An international cooperative analysis. Eur J Cancer 2022; 168:56-64. [PMID: 35452896 DOI: 10.1016/j.ejca.2022.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/06/2022] [Accepted: 03/18/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Spindle cell rhabdomyosarcoma (RMS) is a rare variant of RMS accounting for up to 10% of cases in infants. In older children and adults, spindle cell RMS is associated with MYOD1 mutations and a poor prognosis. In infants, it is associated with recurring fusions involving NCOA2 and VGLL2. Reports in the literature suggest a favorable prognosis for this subset, however, little is known about treatment and outcome data of infants with spindle cell RMS. METHODS Characteristics, treatment, and outcome of an international cohort of 40 patients aged ≤ 12 months with spindle cell RMS treated from 1997 to 2018 were evaluated. RESULTS Localized disease (LD) was diagnosed in 39 patients. The median age at diagnosis was 2.5 months (range 0-12 months). Expert pathologic review confirmed the diagnosis of spindle cell RMS in all patients. Among 26 tumors that had molecular evaluation, 13 had rearrangements of NCOA and/or VGLL. Multimodal treatment of infants with LD included conventional (age adjusted) chemotherapy (n = 37), resection (n = 31) and radiotherapy (RT) (n = 5, brachytherapy in 3). Complete remission was achieved in 37/39 patients. Progressive disease occurred in two infants, relapsed disease in three. Microscopically complete surgical resection was associated with five-year event-free survival (EFS) and overall survival (OS) of 100%. Two patients with tumors ≤ 5 cm were treated with microscopically complete resection only and were alive 1 and 4.2 years after diagnosis. The 5-year EFS and OS for infants with LD were 86% (±11; CI 95%) and 91% (±9; CI 95%), respectively. One patient had metastatic disease (NCOA fusion positive) with primary tumor in head and neck and brain metastases. This patient died despite chemotherapy and delayed resection of the primary tumor due to respiratory failure secondary to cytomegalovirus infection 1.2 years after diagnosis. CONCLUSION Infants with spindle cell RMS have an excellent prognosis. Multimodal treatment including microscopically complete resection of the tumor is strongly recommended.
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Affiliation(s)
- Sarah Whittle
- Texas Children's Cancer and Hematology Centers, Texas Children's Hospital, Houston, TX, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Rajkumar Venkatramani
- Texas Children's Cancer and Hematology Centers, Texas Children's Hospital, Houston, TX, USA; Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Anton Schönstein
- Network Aging Research, Heidelberg University, Heidelberg, Germany
| | - Svetlana D Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Rita Alaggio
- Pathology Unit, Department of Laboratories, Bambino Gesu Children's Hospital, IRCCS, Rome, Italy
| | - Christian Vokuhl
- Section of Pediatric Pathology, Department of Pathology, Bonn, Germany
| | - Erin R Rudzinski
- Dept. of Laboratories, Seattle Children's Hospital, OC.8.720; 4800 Sandpoint Way NE, Seattle, WA, 98105, USA
| | - Anna-Lena Wulf
- Section of Pediatric Pathology, Department of Pathology, Bonn, Germany
| | - Angelica Zin
- Institute of Pediatric Research Città Della Speranza, Padova, Italy
| | - Juliana R Gruver
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Michael A Arnold
- Department of Pathology and Laboratory Medicine, Children's Hospital Colorado, Aurora, CO, USA; Department of Pathology, University of Colorado, Anschutz Medical Campus, Aurora, CO, USA
| | | | - Simone Hettmer
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, University Medical Center Freiburg, University of Freiburg, Freiburg, Germany
| | - Ewa Koscielniak
- Klinikum der Landeshauptstadt Stuttgart GKAöR, Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pädiatrie 5 (Pädiatrische Onkologie, Hämatologie, Immunologie), Stuttgart, Germany; University of Medicine Tübingen, Tübingen, Germany
| | - Frederic G Barr
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Douglas S Hawkins
- Division of Hematology/Oncology, Seattle Children's Hospital, University of Washington, Seattle, WA, USA
| | - Gianni Bisogno
- Division of Pediatric Hematology and Oncology, Department of Women's and Children's Health, University of Padua, Padua, Italy
| | - Monika Sparber-Sauer
- Klinikum der Landeshauptstadt Stuttgart GKAöR, Olgahospital, Stuttgart Cancer Center, Zentrum für Kinder-, Jugend- und Frauenmedizin, Pädiatrie 5 (Pädiatrische Onkologie, Hämatologie, Immunologie), Stuttgart, Germany; University of Medicine Tübingen, Tübingen, Germany.
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6
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Maeng HM, Moore BN, Bagheri H, Steinberg SM, Inglefield J, Dunham K, Wei WZ, Morris JC, Terabe M, England LC, Roberson B, Rosing D, Sachdev V, Pack SD, Miettinen MM, Barr FG, Weiner LM, Panch S, Stroncek DF, Wood LV, Berzofsky JA. Phase I Clinical Trial of an Autologous Dendritic Cell Vaccine Against HER2 Shows Safety and Preliminary Clinical Efficacy. Front Oncol 2021; 11:789078. [PMID: 34976830 PMCID: PMC8716407 DOI: 10.3389/fonc.2021.789078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 11/08/2021] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Despite recent advances, there is an urgent need for agents targeting HER2-expressing cancers other than breast cancer. We report a phase I study (NCT01730118) of a dendritic cell (DC) vaccine targeting HER2 in patients with metastatic cancer or bladder cancer at high risk of relapse. PATIENTS AND METHODS Part 1 of the study enrolled patients with HER2-expressing metastatic cancer that had progressed after at least standard treatment and patients who underwent definitive treatment for invasive bladder cancer with no evidence of disease at the time of enrollment. Part 2 enrolled patients with HER2-expressing metastatic cancer who had progressed after anti-HER2 therapy. The DC vaccines were prepared from autologous monocytes and transduced with an adenoviral vector expressing the extracellular and transmembrane domains of HER2 (AdHER2). A total of five doses were planned, and adverse events were recorded in patients who received at least one dose. Objective response was evaluated by unidimensional immune-related response criteria every 8 weeks in patients who received at least two doses. Humoral and cellular immunogenicity were assessed in patients who received more than three doses. RESULTS A total of 33 patients were enrolled at four dose levels (5 × 106, 10 × 106, 20 × 106, and 40 × 106 DCs). Median follow-up duration was 36 weeks (4-124); 10 patients completed five doses. The main reason for going off-study was disease progression. The main adverse events attributable to the vaccine were injection-site reactions. No cardiac toxicity was noted. Seven of 21 evaluable patients (33.3%) demonstrated clinical benefit (1 complete response, 1 partial response, and 5 stable disease). After ≥3 doses, an antibody response was detected in 3 of 13 patients (23.1%), including patients with complete and partial responses. Lymphocytes from 10 of 11 patients (90.9%) showed induction of anti-HER2 responses measured by the production of at least one of interferon-gamma, granzyme B, or tumor necrosis factor-alpha, and there were multifunctional responses in 8 of 11 patients (72.7%). CONCLUSIONS The AdHER2 DC vaccine showed evidence of immunogenicity and preliminary clinical benefit in patients with HER2-expressing cancers, along with an excellent safety profile. It shows promise for further clinical applications, especially in combination regimens.
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Affiliation(s)
- Hoyoung M. Maeng
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States,*Correspondence: Hoyoung M. Maeng,
| | - Brittni N. Moore
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Hadi Bagheri
- Radiology and Imaging Sciences, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Seth M. Steinberg
- Biostatistics and Data Management Section, National Cancer Institute, Rockville, MD, United States
| | - Jon Inglefield
- Clinical Support Laboratory, Applied/Developmental Research Directorate, Frederick National Laboratory, Frederick, MD, United States
| | - Kim Dunham
- Clinical Support Laboratory, Applied/Developmental Research Directorate, Frederick National Laboratory, Frederick, MD, United States
| | - Wei-Zen Wei
- Department of Oncology, Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
| | - John C. Morris
- Division of Hematology-Oncology, University of Cincinnati, Cincinnati, OH, United States
| | - Masaki Terabe
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Lee C. England
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Brenda Roberson
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Douglas Rosing
- Cardiovascular Branch, National Heart, Lung, and Blood Institute, Bethesda, MD, United States
| | - Vandana Sachdev
- Cardiovascular Branch, National Heart, Lung, and Blood Institute, Bethesda, MD, United States
| | - Svetlana D. Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Markku M. Miettinen
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Frederic G. Barr
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Louis M. Weiner
- Department of Oncology, Georgetown Lombardi Comprehensive Cancer Center, Washington, DC, United States
| | - Sandhya Panch
- Center for Cellular Engineering, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - David F. Stroncek
- Center for Cellular Engineering, Clinical Center, National Institutes of Health, Bethesda, MD, United States
| | - Lauren V. Wood
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
| | - Jay A. Berzofsky
- Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States
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7
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Hadrava Vanova K, Pang Y, Krobova L, Kraus M, Nahacka Z, Boukalova S, Pack SD, Zobalova R, Zhu J, Huynh TT, Jochmanova I, Uher O, Hubackova S, Dvorakova S, Garrett TJ, Ghayee HK, Wu X, Schuster B, Knapp PE, Frysak Z, Hartmann I, Nilubol N, Cerny J, Taieb D, Rohlena J, Neuzil J, Yang C, Pacak K. Germline SUCLG2 Variants in Patients with Pheochromocytoma and Paraganglioma. J Natl Cancer Inst 2021; 114:130-138. [PMID: 34415331 DOI: 10.1093/jnci/djab158] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 12/14/2020] [Accepted: 08/18/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Pheochromocytoma and paraganglioma (PPGL) are neuroendocrine tumors with frequent mutations in genes linked to the tricarboxylic acid cycle. However, no pathogenic variant has been found to date in succinyl-CoA ligase (SUCL), an enzyme that provides substrate for succinate dehydrogenase (SDH; mitochondrial complex II; CII), a known tumor suppressor in PPGL. METHODS A cohort of 352 subjects with apparently sporadic PPGL underwent genetic testing using a panel of 54 genes developed at the National Institutes of Health, including the SUCLG2 subunit of SUCL. Gene deletion, succinate levels, and protein levels were assessed in tumors where possible. To confirm the possible mechanism, we used a progenitor cell line, hPheo1, derived from a human pheochromocytoma, and ablated and re-expressed SUCLG2. RESULTS We describe eight germline variants in the GTP-binding domain of SUCLG2 in 15 patients (15 of 352, 4.3%) with apparently sporadic PPGL. Analysis of SUCLG2-mutated tumors and SUCLG2-deficient hPheo1 cells revealed absence of SUCLG2 protein, decrease in the level of the SDHB subunit of CII and faulty assembly of the complex, resulting in aberrant respiration and elevated succinate accumulation. CONCLUSIONS Our study suggests SUCLG2 as a novel candidate gene in the genetic landscape of PPGL. Large-scale sequencing may uncover additional cases harboring SUCLG2 variants and provide more detailed information about their prevalence and penetrance.
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Affiliation(s)
- Katerina Hadrava Vanova
- Section of Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.,Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Ying Pang
- Section of Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Linda Krobova
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Michal Kraus
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic.,Faculty of Science, Charles University, Prague, Czech Republic
| | - Zuzana Nahacka
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Stepana Boukalova
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Svetlana D Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Renata Zobalova
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Jun Zhu
- Systems Biology Center, National Heart Lung Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Thanh-Truc Huynh
- Section of Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Ivana Jochmanova
- Section of Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.,1st Department of Internal Medicine, Pavol Jozef Safarik University in Kosice, Faculty of Medicine and Teaching Hospital of Louis Pasteur, Kosice, Slovakia
| | - Ondrej Uher
- Section of Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.,Department of Medical Biology, Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Sona Hubackova
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Sarka Dvorakova
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Timothy J Garrett
- Southeast Center for Integrated Metabolomics, Clinical and Translational Science Institute, University of Florida, Gainesville, FL, USA
| | - Hans K Ghayee
- Department of Medicine, Division of Endocrinology, Malcom Randall VA Medical Center, University of Florida, Gainesville, FL, USA
| | - Xiaolin Wu
- Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Bjoern Schuster
- Institute of Molecular Genetics, Czech Academy of Sciences, Prague, Czech Republic
| | - Philip E Knapp
- Section of Endocrinology, Boston Medical Center, Boston University, Boston, MA, USA
| | - Zdenek Frysak
- 3rd Department of Internal Medicine, University Hospital and Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Igor Hartmann
- Department of Urology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Naris Nilubol
- Endocrine Surgery Section, Surgical Oncology Program, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jiri Cerny
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - David Taieb
- Department of Nuclear Medicine, La Timone University Hospital, CERIMED, Aix-Marseille University, Marseille, France
| | - Jakub Rohlena
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic
| | - Jiri Neuzil
- Institute of Biotechnology, Czech Academy of Sciences, BIOCEV, Vestec, Prague West, Czech Republic.,School of Pharmacy and Medical Science, Griffith University, Southport, Qld, Australia
| | - Chunzhang Yang
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Karel Pacak
- Section of Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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Raffeld M, Abdullaev Z, Pack SD, Xi L, Nagaraj S, Briceno N, Vera E, Pittaluga S, Lopes Abath Neto O, Quezado M, Aldape K, Armstrong TS, Gilbert MR. High level MYCN amplification and distinct methylation signature define an aggressive subtype of spinal cord ependymoma. Acta Neuropathol Commun 2020; 8:101. [PMID: 32641156 PMCID: PMC7346356 DOI: 10.1186/s40478-020-00973-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/19/2020] [Indexed: 11/10/2022] Open
Abstract
We report a novel group of clinically aggressive spinal cord ependymomas characterized by Grade III histology, MYCN amplification, an absence of NF2 alterations or other recurrent pathogenic mutations, and a unique methylation classifier profile. Seven cases were found to have MYCN amplification in the course of routine mutational profiling of 552 patients with central nervous system tumors between December 2016 and July of 2019 and an eighth patient was identified from an unrelated set of cases. Methylation array analysis revealed that none of the 8 cases clustered with any of the nine previously described ependymoma methylation subgroups, and 7 of 8 formed their own tight unique cluster. Histologically all cases showed grade III features, and all demonstrated aggressive clinical behavior. These findings are presented in the context of data from three other studies describing similar cases. Therefore, a combined total of 27 MYCN amplified spinal cord ependymoma cases have now been reported in the literature, warranting their consideration as a distinctive subtype of spinal cord ependymoma (SP-EPN-MYCN) with their unique molecular characteristics and aggressive clinical behavior.
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Kim O, Park EY, Klinkebiel DL, Pack SD, Shin YH, Abdullaev Z, Emerson RE, Coffey DM, Kwon SY, Creighton CJ, Kwon S, Chang EC, Chiang T, Yatsenko AN, Chien J, Cheon DJ, Yang-Hartwich Y, Nakshatri H, Nephew KP, Behringer RR, Fernández FM, Cho CH, Vanderhyden B, Drapkin R, Bast RC, Miller KD, Karpf AR, Kim J. In vivo modeling of metastatic human high-grade serous ovarian cancer in mice. PLoS Genet 2020; 16:e1008808. [PMID: 32497036 PMCID: PMC7297383 DOI: 10.1371/journal.pgen.1008808] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 06/16/2020] [Accepted: 04/28/2020] [Indexed: 01/03/2023] Open
Abstract
Metastasis is responsible for 90% of human cancer mortality, yet it remains a challenge to model human cancer metastasis in vivo. Here we describe mouse models of high-grade serous ovarian cancer, also known as high-grade serous carcinoma (HGSC), the most common and deadliest human ovarian cancer type. Mice genetically engineered to harbor Dicer1 and Pten inactivation and mutant p53 robustly replicate the peritoneal metastases of human HGSC with complete penetrance. Arising from the fallopian tube, tumors spread to the ovary and metastasize throughout the pelvic and peritoneal cavities, invariably inducing hemorrhagic ascites. Widespread and abundant peritoneal metastases ultimately cause mouse deaths (100%). Besides the phenotypic and histopathological similarities, mouse HGSCs also display marked chromosomal instability, impaired DNA repair, and chemosensitivity. Faithfully recapitulating the clinical metastases as well as molecular and genomic features of human HGSC, this murine model will be valuable for elucidating the mechanisms underlying the development and progression of metastatic ovarian cancer and also for evaluating potential therapies. Rarely does an experimental model fully replicate the clinical metastases of a human malignancy. Faithfully representing the clinical metastases of human high-grade serous ovarian cancer with complete penetrance, coupled with histopathological, molecular, and genomic similarities, these mouse models, particularly one harboring mutant p53, will be vital to elucidating the underlying pathogenesis of human ovarian cancer. In-depth understanding of the development and progression of ovarian cancer is crucial to medical advances in the early detection, effective treatment, and prevention of ovarian cancer. Also, these robust mouse models, as well as cell lines established from the mouse primary and metastatic tumors, will serve as useful preclinical tools to evaluate therapeutic target genes and new therapies in ovarian cancer.
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Affiliation(s)
- Olga Kim
- Department of Biochemistry and Molecular Biology, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Eun Young Park
- Department of Biochemistry and Molecular Biology, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - David L. Klinkebiel
- Department of Biochemistry and Molecular Biology, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Svetlana D. Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Yong-Hyun Shin
- Department of Biochemistry and Molecular Biology, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Zied Abdullaev
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Robert E. Emerson
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Donna M. Coffey
- Department of Pathology and Genomic Medicine, Houston Methodist and Weill Cornell Medical College, Houston, Texas, United States of America
| | - Sun Young Kwon
- Department of Pathology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Chad J. Creighton
- Department of Medicine, Baylor College of Medicine, Houston, Texas, United States of America
| | - Sanghoon Kwon
- Research and Development Center, Bioway Inc, Seoul, Republic of Korea
| | - Edmund C. Chang
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas, United States of America
| | - Theodore Chiang
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas, United States of America
| | - Alexander N. Yatsenko
- Department of Obstetrics, Gynecology & Reproductive Sciences, Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Jeremy Chien
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Sacramento, California, United States of America
| | - Dong-Joo Cheon
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, NY, United States of America
| | - Yang Yang-Hartwich
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Harikrishna Nakshatri
- Department of Surgery, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Kenneth P. Nephew
- Medical Sciences Program, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Bloomington, Indiana, United States of America
| | - Richard R. Behringer
- Departments of Genetics, University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Facundo M. Fernández
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, United States of America
| | - Chi-Heum Cho
- Department of Obstetrics and Gynecology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Barbara Vanderhyden
- Department of Cellular and Molecular Medicine, University of Ottawa, and Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Ronny Drapkin
- Penn Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Robert C. Bast
- Department of Experimental Therapeutics, University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Kathy D. Miller
- Department of Medicine, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine Indianapolis, Indiana, United States of America
| | - Adam R. Karpf
- Eppley Institute for Cancer Research, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Jaeyeon Kim
- Department of Biochemistry and Molecular Biology, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
- * E-mail:
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Raess PW, Wang HW, Pack SD, Jaffe ES. CD30 + large B cell lymphoma with anaplastic features and complete loss of B cell marker expression arising from follicular lymphoma. Histopathology 2019; 75:602-605. [PMID: 31107986 DOI: 10.1111/his.13919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Philipp W Raess
- Department of Pathology, Oregon Health & Science University, Portland, OR, USA
| | - Hao-Wei Wang
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Svetlana D Pack
- Chromosome Pathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Elaine S Jaffe
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Gupta GK, Xi L, Pack SD, Jones JB, Pittaluga S, Raffeld M, Jaffe ES. ALK-positive histiocytosis with KIF5B-ALK fusion in an adult female. Haematologica 2019; 104:e534-e536. [PMID: 31371408 DOI: 10.3324/haematol.2019.230094] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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] Open
Affiliation(s)
- Gaurav K Gupta
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Liqiang Xi
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Svetlana D Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | | | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Mark Raffeld
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Elaine S Jaffe
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
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Pang Y, Gupta G, Yang C, Wang H, Huynh TT, Abdullaev Z, Pack SD, Percy MJ, Lappin TRJ, Zhuang Z, Pacak K. A novel splicing site IRP1 somatic mutation in a patient with pheochromocytoma and JAK2 V617F positive polycythemia vera: a case report. BMC Cancer 2018. [PMID: 29534684 PMCID: PMC5850917 DOI: 10.1186/s12885-018-4127-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background The role of the hypoxia signaling pathway in the pathogenesis of pheochromocytoma/paraganglioma (PPGL)-polycythemia syndrome has been elucidated. Novel somatic mutations in hypoxia-inducible factor type 2A (HIF2A) and germline mutations in prolyl hydroxylase type 1 and type 2 (PHD1 and PHD2) have been identified to cause upregulation of the hypoxia signaling pathway and its target genes including erythropoietin (EPO) and its receptor (EPOR). However, in a minority of patients presenting with this syndrome, the genetics and molecular pathogenesis remain unexplained. The aim of the present study was to uncover novel genetic causes of PPGL-polycythemia syndrome. Case presentation A female presented with a history of JAK2V617F positive PV, diagnosed in 2007, and right adrenal pheochromocytoma diagnosed and resected in 2011. Her polycythemia symptoms and hematocrit levels continued to worsen from 2007 to 2011, with an increased frequency of phlebotomies. Postoperatively, until early 2013, her hematocrit levels remained normalized. Following this, the hematocrit levels ranged between 46.4 and 48.9% [35–45%]. Tumor tissue from the patient was further tested for mutations in genes related to upregulation of the hypoxia signaling pathway including iron regulatory protein 1 (IRP1), which is a known regulator of HIF-2α mRNA translation. Functional studies were performed to investigate the consequences of these mutations, especially their effect on the HIF signaling pathway and EPO. Indel mutations (c.267-1_267delGGinsTA) were discovered at the exon 3 splicing site of IRP1. Minigene construct and splicing site analysis showed that the mutation led to a new splicing site and a frameshift mutation of IRP1, which caused a truncated protein. Fluorescence in situ hybridization analysis demonstrated heterozygous IRP1 deletions in tumor cells. Immunohistochemistry results confirmed the truncated IRP1 and overexpressed HIF-2α, EPO and EPOR in tumor cells. Conclusions This is the first report which provides direct molecular genetic evidence of association between a somatic IRP1 loss-of-function mutation and PHEO and secondary polycythemia. In patients diagnosed with PHEO/PGL and polycythemia with negative genetic testing for mutations in HIF2A, PHD1/2, and VHL, IRP1 should be considered as a candidate gene.
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Affiliation(s)
- Ying Pang
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Garima Gupta
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Chunzhang Yang
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Herui Wang
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Thanh-Truc Huynh
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ziedulla Abdullaev
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Svetlana D Pack
- Laboratory of Pathology, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Melanie J Percy
- Department of Haematology, Belfast City Hospital, Belfast, Northern Ireland, BT9 7AB, UK
| | - Terence R J Lappin
- Centre for Cancer Research and Cell Biology, Queen's University, Belfast, Northern Ireland, BT9 7AB, UK
| | - Zhengping Zhuang
- Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Karel Pacak
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, 20892, USA.
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Nguyen J, Alexander T, Jiang H, Hill N, Abdullaev Z, Pack SD, Hsu AP, Holland SM, Hickstein DD, Engels EA, Brownell I. Melanoma in patients with GATA2 deficiency. Pigment Cell Melanoma Res 2017; 31:337-340. [PMID: 29156497 DOI: 10.1111/pcmr.12671] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/13/2017] [Indexed: 01/11/2023]
Abstract
GATA2 deficiency is a recently described genetic disorder affecting hematopoietic stem cells and is associated with immunodeficiency, hematologic malignancy, and various cutaneous pathologies including cutaneous tumors. To explore the incidence and clinical course of melanoma in patients with germline GATA2 deficiencies, we conducted a retrospective chart review of 71 such patients and identified two with invasive melanoma. One melanoma was diagnosed early because it was associated with pruritus due to a graft-versus-tumor effect following bone marrow transplantation. The other one, a lentigo maligna melanoma, was locally excised but progressed to widespread metastasis and death several years later. Our observations and published studies of melanoma biology suggest an association between decreased GATA2 expression and melanoma progression. These findings suggest that GATA2 deficient patients may have an increased risk of melanoma and should be observed closely for new or changing skin lesions.
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Affiliation(s)
- Jannett Nguyen
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Tiffany Alexander
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Hong Jiang
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Natasha Hill
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Zied Abdullaev
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Svetlana D Pack
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Amy P Hsu
- Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Steven M Holland
- Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Dennis D Hickstein
- Experimental Transplantation and Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Eric A Engels
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - Isaac Brownell
- Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Navaei AH, Walter BA, Moreno V, Pack SD, Pinto P, Merino MJ. Correlation between ERG Fusion Protein and Androgen Receptor Expression by Immunohistochemistry in Prostate, Possible Role in Diagnosis and Therapy. J Cancer 2017; 8:2604-2613. [PMID: 28900498 PMCID: PMC5595090 DOI: 10.7150/jca.16751] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 08/18/2016] [Indexed: 01/01/2023] Open
Abstract
Background: Recent discovery of gene rearrangements have brought a new look to the molecular pathogenesis of cancer. Gene fusions occur in nearly 60% of prostate adenocarcinoma, being the TMPRSS2-ERG one of the most common. Evidence supports the role of ERG fusion in tumorigenesis, progression and invasion via effecting pathways such as WNT, MYC, uPA, PI3K/AKT/PTEN, RAS/RAF/MAPF, NKX3.1, GST-pi and androgen receptor (AR) mediated signaling. Most of the ERG fusions involve 5'-partners androgen responsive. Therefore, we aimed to evaluate AR and ERG fusion protein expression on prostate tissue to find clinicopathological applications and possible role in therapy. Methods: One hundred three samples, including prostate core biopsies and radical prostatectomy specimens, were evaluated for ERG and AR expression by immunohistochemistry (IHC). ERG rearrangement was done by fluorescence in situ hybridization (FISH) on 11 randomly selected cases and correlated with IHC results. Results: From the total of 103 samples, eight (8/103) were benign, fourteen (14/103) had atypical glands, two (2/103) had prostatic intraepithelial neoplasia (PIN), and seventy nine (79/103) showed prostate adenocarcinoma. Forty four (44/79) tumor cases were Gleason score (GS) 6-7 (lower GS), and thirty five (35/79) were GS of 8-10 (higher GS). ERG immunoreaction was observed in 27.8% (22/79) of the tumor cases, showing higher expression in those with lower GS (68.2%, 15/22) compared to higher GS (31.8%, 7/22). Neither benign glands nor PIN stained with ERG. AR expression was observed in 75% of benign samples, 78.5% of atypical glands, 100% of PIN, and in 87.3% of tumor cases with no significant difference based on GS. Co-expression of ERG and AR was evaluated on all the tumor samples. ERG+/AR+ was seen in 77.3% (17/22) of the ERG+ tumor cases, with higher frequency in lower GS (64.7%, 11/17) compared to those with higher GS (35.3%, 6/17). All but five corresponding ERG+ tumor samples were negative for AR. Only 5 samples were ERG-/AR- corresponding to adenocarcinoma GS of 6. Presence or absence of ERG rearrangement was confirmed by FISH and correlated with IHC results. Conclusions: Characterization of ERG status by IHC in prostate tissue has an excellent correlation with FISH. It may also assist in diagnosis since none of the benign glands stained with ERG. Co-expression of ERG+/AR+ in prostate tumor by IHC may suggest gene fusion between ERG and a 5'-partner driven by androgen signaling such as TMPRSS2, which it could represent an important ancillary test for clinical management and development of new therapeutic targets.
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Affiliation(s)
| | | | - Vanessa Moreno
- Translational Surgical Pathology, Laboratory of Pathology
| | | | - Peter Pinto
- Urologic Oncology Branch, CCR, NCI, NIH, Bethesda, MD, USA
| | - Maria J Merino
- Translational Surgical Pathology, Laboratory of Pathology
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15
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Melani C, Major A, Schowinsky J, Roschewski M, Pittaluga S, Jaffe ES, Pack SD, Abdullaev Z, Ahlman MA, Kwak JJ, Morgan R, Rabinovitch R, Pan Z, Haverkos BM, Gutman JA, Pollyea DA, Smith CA, Wilson WH, Kamdar M. PD-1 Blockade in Mediastinal Gray-Zone Lymphoma. N Engl J Med 2017; 377:89-91. [PMID: 28679093 PMCID: PMC5628739 DOI: 10.1056/nejmc1704767] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - Ajay Major
- University of Colorado School of Medicine, Aurora, CO
| | | | | | | | | | | | | | | | | | | | | | - Zenggang Pan
- University of Colorado School of Medicine, Aurora, CO
| | | | | | | | | | | | - Manali Kamdar
- University of Colorado School of Medicine, Aurora, CO
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Olanich ME, Sun W, Hewitt SM, Abdullaev Z, Pack SD, Barr FG. Abstract 3093: CDK4 amplification reduces sensitivity to CDK4/6 inhibition in fusion-positive rhabdomyosarcoma. Cancer Res 2015. [DOI: 10.1158/1538-7445.am2015-3093] [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: 11/16/2022]
Abstract
Abstract
Rhabdomyosarcoma (RMS) is the most common pediatric soft tissue sarcoma and includes an aggressive, PAX3-FOXO1 fusion-positive subtype. Amplification of chromosomal region 12q13-q14, which contains the CDK4 proto-oncogene, was identified in a subset of fusion-positive RMS. Other tumor types with CDK4 amplification or overexpression, including liposarcoma and neuroblastoma, are sensitive to CDK4/6 inhibition, suggesting that CDK4/6-targeted therapies may provide a new treatment strategy in fusion-positive RMS. To evaluate the role of CDK4 in chromosomal region 12q13-14 amplification in fusion-positive RMS and the potential clinical utility of CDK4/6 inhibition in this disease setting, we examined the biological consequences of CDK4 knockdown, CDK4 overexpression, and pharmacologic CDK4/6 inhibition in fusion-positive RMS in vitro and in vivo. Knockdown of CDK4 abrogated proliferation and transformation of 12q13-14-amplified and non-amplified fusion-positive RMS cells via G1-phase cell cycle arrest. This arrest was associated with reduced RB phosphorylation and E2F-responsive gene expression. Significant differences in E2F target expression, however, were not observed in RMS cells overexpressing CDK4 or in fusion-positive tumors harboring 12q13-14 amplification relative to control cells or tumors lacking amplification, respectively. Treatment with the small molecule CDK4/6 inhibitor LEE011 phenocopied CDK4 knockdown, decreasing viability, RB phosphorylation, and E2F-responsive gene expression and inducing G1-phase cell cycle arrest. All fusion-positive RMS cell lines showed sensitivity to CDK4/6 inhibition, with evidence of differential antitumor activity resulting from an inverse relationship between CDK4 expression and inhibitor vulnerability. This variable responsiveness to LEE011 was recapitulated in xenograft models of CDK4-amplified and non-amplified fusion-positive RMS. Our findings demonstrate that CDK4 is necessary for RB-E2F-mediated G1-phase cell cycle progression, proliferation, and transformation in fusion-positive RMS regardless of CDK4 amplification status. Our studies further indicate that single-agent LEE011 is active in the setting of fusion-positive RMS and suggest that CDK4 amplification may be a marker of reduced sensitivity whereas low CDK4 expression may be associated with higher susceptibility to CDK4/6 inhibition. Collectively, our data provide preclinical evidence supporting further investigation of CDK4/6-targeted therapies in treatment regimens for fusion-positive RMS.
Citation Format: Mary E. Olanich, Wenyue Sun, Stephen M. Hewitt, Zied Abdullaev, Svetlana D. Pack, Frederic G. Barr. CDK4 amplification reduces sensitivity to CDK4/6 inhibition in fusion-positive rhabdomyosarcoma. [abstract]. In: Proceedings of the 106th Annual Meeting of the American Association for Cancer Research; 2015 Apr 18-22; Philadelphia, PA. Philadelphia (PA): AACR; Cancer Res 2015;75(15 Suppl):Abstract nr 3093. doi:10.1158/1538-7445.AM2015-3093
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Olanich ME, Sun W, Hewitt SM, Abdullaev Z, Pack SD, Barr FG. CDK4 Amplification Reduces Sensitivity to CDK4/6 Inhibition in Fusion-Positive Rhabdomyosarcoma. Clin Cancer Res 2015; 21:4947-59. [PMID: 25810375 DOI: 10.1158/1078-0432.ccr-14-2955] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 03/18/2015] [Indexed: 12/26/2022]
Abstract
PURPOSE Rhabdomyosarcoma (RMS) is the most common pediatric soft tissue sarcoma and includes a PAX3- or PAX7-FOXO1 fusion-positive subtype. Amplification of chromosomal region 12q13-q14, which contains the CDK4 proto-oncogene, was identified in an aggressive subset of fusion-positive RMS. CDK4/6 inhibitors have antiproliferative activity in CDK4-amplified liposarcoma and neuroblastoma, suggesting CDK4/6 inhibition as a potential therapeutic strategy in fusion-positive RMS. EXPERIMENTAL DESIGN We examined the biologic consequences of CDK4 knockdown, CDK4 overexpression, and pharmacologic CDK4/6 inhibition by LEE011 in fusion-positive RMS cell lines and xenografts. RESULTS Knockdown of CDK4 abrogated proliferation and transformation of 12q13-14-amplified and nonamplified fusion-positive RMS cells via G1-phase cell-cycle arrest. This arrest was mediated by reduced RB phosphorylation and E2F-responsive gene expression. Significant differences in E2F target expression, cell-cycle distribution, proliferation, or transformation were not observed in RMS cells overexpressing CDK4. Treatment with LEE011 phenocopied CDK4 knockdown, decreasing viability, RB phosphorylation, and E2F-responsive gene expression and inducing G1-phase cell-cycle arrest. Although all fusion-positive cell lines showed sensitivity to CDK4/6 inhibition, there was diminished sensitivity associated with CDK4 amplification and overexpression. This variable responsiveness to LEE011 was recapitulated in xenograft models of CDK4-amplified and nonamplified fusion-positive RMS. CONCLUSIONS Our data demonstrate that CDK4 is necessary but overexpression is not sufficient for RB-E2F-mediated G1-phase cell-cycle progression, proliferation, and transformation in fusion-positive RMS. Our studies indicate that LEE011 is active in the setting of fusion-positive RMS and suggest that low CDK4-expressing fusion-positive tumors may be particularly susceptible to CDK4/6 inhibition.
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Affiliation(s)
- Mary E Olanich
- Cancer Molecular Pathology Section, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Wenyue Sun
- Cancer Molecular Pathology Section, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Stephen M Hewitt
- Tissue Array Research Program and Applied Molecular Pathology Laboratory, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Zied Abdullaev
- Chromosome Pathology Unit, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Svetlana D Pack
- Chromosome Pathology Unit, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Frederic G Barr
- Cancer Molecular Pathology Section, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland.
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Zhang C, Yang AI, Vasconcelos L, Moon S, Yang C, Nesvick CL, Saidkhodjaeva L, Abdullaev Z, Pack SD, Ghosh A, Chittiboina P, Heiss JD, Zhuang Z, Quezado MM, Zaghloul KA. Von hippel-lindau disease associated pulmonary carcinoid with cranial metastasis. J Clin Endocrinol Metab 2014; 99:2633-6. [PMID: 24878057 PMCID: PMC4121022 DOI: 10.1210/jc.2014-1732] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CONTEXT Carcinoids have rarely been described in von Hippel-Lindau (VHL) disease. OBJECTIVE We describe the first reported case of a patient with VHL who developed a pulmonary carcinoid that subsequently metastasized to a pre-existent cranial hemangioblastoma. RESULTS Histological and immunohistochemical features of the metastatic lesion were similar to the primary carcinoid. Both lesions demonstrated heterozygous VHL gene deletions with fluorescence in situ hybridization analysis. CONCLUSIONS This case provides direct molecular genetic evidence of an association between VHL and carcinoids.
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Affiliation(s)
- Chao Zhang
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke (C.Z., A.I.Y., C.Y., C.L.N., P.C., J.D.H., Z.Z., K.A.Z.), and Laboratory of Pathology, National Cancer Institute (L.V., S.M., L.S., Z.A., S.D.P., A.G., M.M.Q.), National Institutes of Health, Bethesda, Maryland 20892; and Department of Orthopedics (C.Z.), Xinqiao Hospital, The Third Military Medical University, Chongqing 400037, China
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19
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Sadri N, Barroeta J, Pack SD, Abdullaev Z, Chatterjee B, Puthiyaveettil R, Brooks JS, Barr FG, Zhang PJ. Malignant round cell tumor of bone with EWSR1-NFATC2 gene fusion. Virchows Arch 2014; 465:233-9. [PMID: 24993903 DOI: 10.1007/s00428-014-1613-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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] [Received: 04/18/2014] [Revised: 05/23/2014] [Accepted: 06/18/2014] [Indexed: 02/02/2023]
Abstract
Gene rearrangements involving the Ewing sarcoma breakpoint region 1 (EWSR1) gene are seen in a broad range of sarcomas and some nonmesenchymal neoplasms. Ewing sarcoma is molecularly defined by a fusion of the EWSR1 gene (or rarely the related FUS gene) to a member of the E26 transformation-specific (ETS) family of transcription factors, frequently the EWSR1-FLI1 fusion. More recently, EWSR1 gene fusion to non-ETS family members, including the nuclear factor of activated T cells, cytoplasmic, calcineurin-dependent 2 (NFATC2) gene, has been reported in a histological variant of Ewing sarcoma. Here, we report a malignant round cell tumor of bone with an EWSR1-NFATC2 fusion gene. This report builds upon the unusual morphological and clinical presentation of bone neoplasms containing an EWSR1-NFATC2 fusion gene.
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Affiliation(s)
- Navid Sadri
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Philadelphia, PA, 19104, USA,
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20
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Arnold MA, Ballester LY, Pack SD, Abdullaev Z, Merchant M, Tsokos MG. Primary subcutaneous spindle cell Ewing sarcoma with strong S100 expression and EWSR1-FLI1 fusion: a case report. Pediatr Dev Pathol 2014; 17:302-7. [PMID: 24735198 DOI: 10.2350/14-03-1454-cr.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Ewing sarcoma is described classically as a small, round cell tumor of bone and soft tissue in children and young adults. Ewing sarcoma most often is characterized by a fusion of the Ewing sarcoma breakpoint region 1 (EWSR1) and the Friend leukemia virus integration 1 (FLI1) genes, forming an EWSR1-FLI1 fusion transcript. We report an exceptional case of primary subcutaneous Ewing sarcoma in a 16-year-old female composed entirely of spindle cells with focal fascicular growth and exhibiting strong, diffuse immunohistochemical reactivity for S100, unlike classic Ewing sarcoma. However, reverse transcription-polymerase chain reaction (RT-PCR) analysis confirmed the presence of a rare variant of the EWSR1-FLI1 fusion transcript, featuring fusion of EWSR1 exon 10 to FLI1 exon 6. To our knowledge, the combined histologic, molecular, and clinical features have not been reported previously in Ewing sarcoma, and raise a broad differential diagnosis emphasizing the importance of molecular techniques in the diagnosis of this tumor.
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Affiliation(s)
- Michael A Arnold
- 1 Department of Pathology and Laboratory Medicine, The Ohio State University College of Medicine and Nationwide Children's Hospital, Columbus, OH, USA
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21
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Nicolae A, Xi L, Pittaluga S, Abdullaev Z, Pack SD, Chen J, Waldmann TA, Jaffe ES, Raffeld M. Frequent STAT5B mutations in γδ hepatosplenic T-cell lymphomas. Leukemia 2014; 28:2244-8. [PMID: 24947020 DOI: 10.1038/leu.2014.200] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- A Nicolae
- Hematopathology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - L Xi
- Molecular Diagnostics Unit, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - S Pittaluga
- Hematopathology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Z Abdullaev
- Chromosome Biology Unit, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - S D Pack
- Chromosome Biology Unit, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - J Chen
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - T A Waldmann
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - E S Jaffe
- Hematopathology Section, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - M Raffeld
- Molecular Diagnostics Unit, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
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22
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Abstract
ERG transcription factor is constitutively expressed in endothelial cells. Because benign and malignant vascular endothelia retain the ERG expression, ERG is considered a useful marker for angiosarcomas and related tumors. ERG is also expressed in a subset of prostate carcinomas and Ewing sarcomas due to ERG-involved translocations; therefore, this marker is also of high interest in the study of these malignancies. In this study, we evaluated 109 epithelioid sarcomas for ERG expression, on the basis of an initial observation of an ERG-positive case. We also studied expression of other endothelial antigens in epithelioid sarcoma. ERG was expressed in 38% of epithelioid sarcomas (41/109), usually with a uniform nuclear staining, similar to that seen in angiosarcomas. However, all epithelioid sarcomas were negative for ERG gene rearrangement indicating that ERG expression is not likely related to ERG-involving translocations in epithelioid sarcoma. Other endothelial markers, CD31, claudin 5, and Prox1, were absent in epithelioid sarcomas. The only exception was a pulmonary metastasis of epithelioid sarcoma showing focal CD31 expression, which probably resulted from antigen adsorption onto tumor cell surfaces. However, podoplanin was commonly (7/9) expressed in epithelioid sarcoma; therefore, this marker is not useful in distinguishing epithelioid sarcoma from angiosarcoma. INI1/SMARCB1 gene product was absent in all epithelioid sarcomas (considered here a definitional feature) but was absent from only 1 epithelioid angiosarcoma, indicating its relative specificity for epithelioid sarcoma in this differential diagnostic setting. ERG expression is fairly common in epithelioid sarcoma and should be recognized as a diagnostic pitfall in the differential diagnosis of epithelioid sarcoma and epithelioid angiosarcoma. General lack of endothelial cell-specific markers in epithelioid sarcoma helps in this distinction.
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Affiliation(s)
- Markku Miettinen
- *Laboratory of Pathology, National Cancer Institute, Bethesda ‡Joint Pathology Center, Silver Spring, MD †HUSLab, Helsinki, Finland
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23
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Thomas A, Lee JH, Wang Y, Abdullaev Z, Saidkhodjaeva L, Pack SD, Giaccone G. Abstract 5466: The role of fibroblast growth factor receptor 1 (FGFR1) in small cell lung cancer (SCLC). Cancer Res 2013. [DOI: 10.1158/1538-7445.am2013-5466] [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: 11/16/2022]
Abstract
Abstract
Background: Although molecularly-targeted treatment options for solid tumors have advanced in recent years, there remains a significant therapeutic need for SCLC, which constitutes 12% of all lung cancers and carries a poor prognosis. FGFR1, a transmembrane tyrosine kinase receptor encoded by the FGFR1 gene in chromosome 8p12 is involved in cell cycle, differentiation, survival, apoptosis, and angiogenesis. In SCLC, FGF/FGFR pathway is known to induce proliferation, disrupt apoptosis and mediate chemo-resistance. Pharmacologic FGFR inhibition in SCLC reduces proliferation and increases apoptosis both in vitro and in vivo. We and others have reported high copy number gains (CNG) in cytogenetic bands encoding FGFR1 in SCLC suggesting that FGFR1 may be driver mutation and a potential therapeutic target in SCLC. In this study we further characterize FGFR1 as a therapeutic target in SCLC.
Methods: Thirteen SCLC cell lines, 16 SCLC patient samples, and 14 SCLC tumors from commercially available tissue microarray (TMA) were screened for copy number alterations using array comparative genomic hybridization (aCGH) and focal FGFR1 amplifications using fluorescence in situ hybridization (FISH). In the cell lines, FGFR1 exons were sequenced from genomic DNA, mRNA expression evaluated using real-time polymerase chain reaction and protein expression determined semi-quantitatively using western blot. Growth inhibition assays were performed using PD173074, a selective FGFR inhibitor and standard cytotoxic agents (cisplatin and etoposide) to determine the correlation between FGFR1 expression and drug sensitivity.
Results: CNG was detected in 10/16 (63%) patient samples and in 5/14 (36%) of tumors from TMA (range 4-9 copies per cell). 5/13 (38%) of cell lines demonstrated CNG, but we found no FGFR1 mutations or focal amplifications in SCLC cell lines. FGFR1 mRNA expression did not correlate with CNG and the FGFR1 protein expression was unrelated to the mRNA expression. FGFR1 CNG predicted sensitivity to PD173074 with cell lines carrying higher copy numbers being more sensitive. No such correlation was detected between FGFR1 mRNA expression and PD173074 sensitivity. Higher FGFR1 mRNA expression was associated with etoposide resistance.
Conclusion: FGFR1 protein expression in SCLC cell lines is unrelated to copy number alterations and mRNA expression. CNG of 8p12 region which encodes FGFR1 predicts sensitivity to PD173074, a selective FGFR inhibitor.
Citation Format: Anish Thomas, Jih-Hsiang Lee, Yisong Wang, Ziedulla Abdullaev, Lola Saidkhodjaeva, Svetlana D. Pack, Giuseppe Giaccone. The role of fibroblast growth factor receptor 1 (FGFR1) in small cell lung cancer (SCLC). [abstract]. In: Proceedings of the 104th Annual Meeting of the American Association for Cancer Research; 2013 Apr 6-10; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2013;73(8 Suppl):Abstract nr 5466. doi:10.1158/1538-7445.AM2013-5466
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Pugacheva EM, Suzuki T, Pack SD, Kosaka-Suzuki N, Yoon J, Vostrov AA, Barsov E, Strunnikov AV, Morse HC, Loukinov D, Lobanenkov V. The structural complexity of the human BORIS gene in gametogenesis and cancer. PLoS One 2010; 5:e13872. [PMID: 21079786 PMCID: PMC2975627 DOI: 10.1371/journal.pone.0013872] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Accepted: 10/11/2010] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND BORIS/CTCFL is a paralogue of CTCF, the major epigenetic regulator of vertebrate genomes. BORIS is normally expressed only in germ cells but is aberrantly activated in numerous cancers. While recent studies demonstrated that BORIS is a transcriptional activator of testis-specific genes, little is generally known about its biological and molecular functions. METHODOLOGY/PRINCIPAL FINDINGS Here we show that BORIS is expressed as 23 isoforms in germline and cancer cells. The isoforms are comprised of alternative N- and C-termini combined with varying numbers of zinc fingers (ZF) in the DNA binding domain. The patterns of BORIS isoform expression are distinct in germ and cancer cells. Isoform expression is activated by downregulation of CTCF, upregulated by reduction in CpG methylation caused by inactivation of DNMT1 or DNMT3b, and repressed by activation of p53. Studies of ectopically expressed isoforms showed that all are translated and localized to the nucleus. Using the testis-specific cerebroside sulfotransferase (CST) promoter and the IGF2/H19 imprinting control region (ICR), it was shown that binding of BORIS isoforms to DNA targets in vitro is methylation-sensitive and depends on the number and specific composition of ZF. The ability to bind target DNA and the presence of a specific long amino terminus (N258) in different isoforms are necessary and sufficient to activate CST transcription. Comparative sequence analyses revealed an evolutionary burst in mammals with strong conservation of BORIS isoproteins among primates. CONCLUSIONS The extensive repertoire of spliced BORIS variants in humans that confer distinct DNA binding and transcriptional activation properties, and their differential patterns of expression among germ cells and neoplastic cells suggest that the gene is involved in a range of functionally important aspects of both normal gametogenesis and cancer development. In addition, a burst in isoform diversification may be evolutionarily tied to unique aspects of primate speciation.
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Affiliation(s)
- Elena M Pugacheva
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Disease, National Institutes of Health, Rockville, Maryland, United States of America.
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25
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Kim JH, Ebersole T, Kouprina N, Noskov VN, Ohzeki JI, Masumoto H, Mravinac B, Sullivan BA, Pavlicek A, Dovat S, Pack SD, Kwon YW, Flanagan PT, Loukinov D, Lobanenkov V, Larionov V. Human gamma-satellite DNA maintains open chromatin structure and protects a transgene from epigenetic silencing. Genome Res 2009; 19:533-44. [PMID: 19141594 DOI: 10.1101/gr.086496.108] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The role of repetitive DNA sequences in pericentromeric regions with respect to kinetochore/heterochromatin structure and function is poorly understood. Here, we use a mouse erythroleukemia cell (MEL) system for studying how repetitive DNA assumes or is assembled into different chromatin structures. We show that human gamma-satellite DNA arrays allow a transcriptionally permissive chromatin conformation in an adjacent transgene and efficiently protect it from epigenetic silencing. These arrays contain CTCF and Ikaros binding sites. In MEL cells, this gamma-satellite DNA activity depends on binding of Ikaros proteins involved in differentiation along the hematopoietic pathway. Given our discovery of gamma-satellite DNA in pericentromeric regions of most human chromosomes and a dynamic chromatin state of gamma-satellite arrays in their natural location, we suggest that gamma-satellite DNA represents a unique region of the functional centromere with a possible role in preventing heterochromatin spreading beyond the pericentromeric region.
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Affiliation(s)
- Jung-Hyun Kim
- Laboratory of Molecular Pharmacology, National Cancer Institute, Bethesda, Maryland 20892, USA
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26
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Jaikumar S, Zhuang Z, Mannan P, Vortmeyer AO, Furuta M, Dickerman R, Bedanova J, Lonser RR, Walbridge S, Weil RJ, Lobanenkov VV, Oldfield EH, Pack SD. Interspecies comparative genomic hybridization (I-CGH): a new twist to study animal tumor models. Cell Cycle 2007; 6:836-42. [PMID: 17377495 DOI: 10.4161/cc.6.7.4062] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Animal models of human diseases are widely used to address questions of tumor development. Selection of a particular animal model depends upon a variety of factors, among them: animal cost, species lifespan and hardiness; availability of biomolecular and genetic tools for that species; and evolutionary distance from humans. In spite of the growth in genomic data in the past several years, many animal models cannot yet be studied extensively due to gaps in genetic mapping, sequencing and functional analyses. Thus, alternative molecular genetic approaches are needed. We have designed an interspecies comparative genomic hybridization approach to analyze genetic changes in radiation-induced brain tumors in the non-human primate, Macaca mulatta. Using homologies between the primate and human genomes, we adapted widely-available CGH techniques to generate cytogenetic profiles of malignant gliomas in four monkey tumors. Losses and gains were projected onto the corresponding homologous chromosomal regions in the human genome, thus directly translating the status of the monkey gliomas into human gene content. This represents a novel method of comparative interspecies cytogenetic mapping that permits simultaneous analysis of genomic imbalances of unknown sequences in disparate species and correlation with potential or known human disease-related genes.
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Affiliation(s)
- Sivakumar Jaikumar
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
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27
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Ghochikyan A, Mkrtichyan M, Loukinov D, Mamikonyan G, Pack SD, Movsesyan N, Ichim TE, Cribbs DH, Lobanenkov VV, Agadjanyan MG. Elicitation of T cell responses to histologically unrelated tumors by immunization with the novel cancer-testis antigen, brother of the regulator of imprinted sites. J Immunol 2007; 178:566-73. [PMID: 17182597 PMCID: PMC2377412 DOI: 10.4049/jimmunol.178.1.566] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Brother of the regulator of imprinted sites (BORIS) was previously described as a transcription factor for epigenetic reprogramming the expression of which is strictly confined to germ cells of adult testes but is aberrantly activated in the vast majority of neoplastic cells. Considering the critical role of BORIS in cancerogenesis and the fact that its expression pattern may preclude thymic tolerance, we generated DNA- and protein-based mouse BORIS antitumor vaccines using a non-DNA-binding version of the BORIS molecule. Clinical use of BORIS as a vaccine Ag would require that certain safety concerns be met. Specifically, administration of the functional BORIS protein would hypothetically pose a risk of BORIS accelerating the progression of cancer. To alleviate such safety concerns, we have developed vaccines based on the BORIS molecule lacking the DNA-binding zinc fingers domain. To enhance anti-BORIS cellular immune responses, we used a standard molecular adjuvant approach. It consisted of plasmids encoding murine IL-12 and IL-18 for a DNA-based vaccine and conventional Th1 type adjuvant, Quil A, for a protein-based vaccine. Both DNA- and protein-based vaccines induced Ag-specific CD4(+) T cell proliferation with Th1 and Th2 cytokine profiles, respectively. Protein-based, but not DNA-based, BORIS vaccine induced a significant level of Ab production in immunized animals. Importantly, potent anticancer CD8(+)-cytotoxic lymphocytes were generated after immunization with the DNA-based, but not protein-based, BORIS vaccine. These cytolytic responses were observed across a wide range of different mouse cancers including mammary adenocarcinoma, glioma, leukemia, and mastocytoma.
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MESH Headings
- Adjuvants, Immunologic/administration & dosage
- Animals
- Antibody Formation
- Antigens, Neoplasm/administration & dosage
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- CD4 Antigens/analysis
- Cancer Vaccines/genetics
- Cancer Vaccines/immunology
- Cancer Vaccines/pharmacology
- Cell Line, Tumor
- Cytotoxicity, Immunologic
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/immunology
- DNA-Binding Proteins/pharmacology
- Female
- Histocompatibility Antigens Class I/immunology
- Humans
- Immunization
- Interleukin-12/genetics
- Interleukin-18/genetics
- Lymphocyte Activation
- Male
- Mice
- Mice, Inbred BALB C
- Neoplasms/immunology
- Neoplasms/pathology
- Plasmids/genetics
- Sequence Deletion
- Testis/immunology
- Th1 Cells/drug effects
- Th1 Cells/immunology
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/genetics
- Vaccines, DNA/immunology
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Affiliation(s)
- Anahit Ghochikyan
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
- Department of Neurology, Institute for Brain Aging and Dementia, University of California, Irvine, CA 92697
| | - Mikayel Mkrtichyan
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
- Department of Neurology, Institute for Brain Aging and Dementia, University of California, Irvine, CA 92697
| | - Dmitri Loukinov
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Gregory Mamikonyan
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
| | - Svetlana D. Pack
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Nina Movsesyan
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
| | - Thomas E. Ichim
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
- OncoMune Inc., Miami, FL 33122
| | - David H. Cribbs
- Department of Neurology, Institute for Brain Aging and Dementia, University of California, Irvine, CA 92697
| | - Victor V. Lobanenkov
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Michael G. Agadjanyan
- Department of Molecular Immunology, Institute for Molecular Medicine, Huntington Beach, CA 92647
- Department of Neurology, Institute for Brain Aging and Dementia, University of California, Irvine, CA 92697
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Pack SD, Weil RJ, Vortmeyer AO, Zeng W, Li J, Okamoto H, Furuta M, Pak E, Lubensky IA, Oldfield EH, Zhuang Z. Individual adult human neurons display aneuploidy: detection by fluorescence in situ hybridization and single neuron PCR. Cell Cycle 2005; 4:1758-60. [PMID: 16258289 DOI: 10.4161/cc.4.12.2153] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [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: 11/19/2022] Open
Abstract
Neurons, once committed, exit the cell cycle and undergo maturation that promote specialized activity and are believed to operate upon a stable genome. We used fluorescence in situ hybridization, selective cell microdissection, and loss of heterozygosity analysis to assess degree of aneuploidy in patients with a neurodegenerative disease and in normal controls. We found that aneuploidy occurs in approximately 40% of mature, adult human neurons in health or disease and may be a physiological mechanism that maintains neuronal fate and function; it does not appear to be an unstable state. The fact that neuronal stem cells can be identified in adult humans and that somatic mosaicism may be found in neuronal precursor cells deserves further investigation before using adult neural stem cells to treat human disease.
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Affiliation(s)
- Svetlana D Pack
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
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Hong JA, Kang Y, Abdullaev Z, Flanagan PT, Pack SD, Fischette MR, Adnani MT, Loukinov DI, Vatolin S, Risinger JI, Custer M, Chen GA, Zhao M, Nguyen DM, Barrett JC, Lobanenkov VV, Schrump DS. Reciprocal binding of CTCF and BORIS to the NY-ESO-1 promoter coincides with derepression of this cancer-testis gene in lung cancer cells. Cancer Res 2005; 65:7763-74. [PMID: 16140944 DOI: 10.1158/0008-5472.can-05-0823] [Citation(s) in RCA: 147] [Impact Index Per Article: 7.7] [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: 11/16/2022]
Abstract
Regulatory sequences recognized by the unique pair of paralogous factors, CTCF and BORIS, have been implicated in epigenetic regulation of imprinting and X chromosome inactivation. Lung cancers exhibit genome-wide demethylation associated with derepression of a specific class of genes encoding cancer-testis (CT) antigens such as NY-ESO-1. CT genes are normally expressed in BORIS-positive male germ cells deficient in CTCF and meCpG contents, but are strictly silenced in somatic cells. The present study was undertaken to ascertain if aberrant activation of BORIS contributes to derepression of NY-ESO-1 during pulmonary carcinogenesis. Preliminary experiments indicated that NY-ESO-1 expression coincided with derepression of BORIS in cultured lung cancer cells. Quantitative reverse transcription-PCR analysis revealed robust, coincident induction of BORIS and NY-ESO-1 expression in lung cancer cells, but not normal human bronchial epithelial cells following 5-aza-2'-deoxycytidine (5-azadC), Depsipeptide FK228 (DP), or sequential 5-azadC/DP exposure under clinically relevant conditions. Bisulfite sequencing, methylation-specific PCR, and chromatin immunoprecipitation (ChIP) experiments showed that induction of BORIS coincided with direct modulation of chromatin structure within a CpG island in the 5'-flanking noncoding region of this gene. Cotransfection experiments using promoter-reporter constructs confirmed that BORIS modulates NY-ESO-1 expression in lung cancer cells. Gel shift and ChIP experiments revealed a novel CTCF/BORIS-binding site in the NY-ESO-1 promoter, which unlike such sites in the H19-imprinting control region and X chromosome, is insensitive to CpG methylation in vitro. In vivo occupancy of this site by CTCF was associated with silencing of the NY-ESO-1 promoter, whereas switching from CTCF to BORIS occupancy coincided with derepression of NY-ESO-1. Collectively, these data indicate that reciprocal binding of CTCF and BORIS to the NY-ESO-1 promoter mediates epigenetic regulation of this CT gene in lung cancer cells, and suggest that induction of BORIS may be a novel strategy to augment immunogenicity of pulmonary carcinomas.
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Affiliation(s)
- Julie A Hong
- Thoracic Oncology Section, Surgery Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892-1201, USA
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Vatolin S, Abdullaev Z, Pack SD, Flanagan PT, Custer M, Loukinov DI, Pugacheva E, Hong JA, Morse H, Schrump DS, Risinger JI, Barrett JC, Lobanenkov VV. Conditional Expression of the CTCF-Paralogous Transcriptional Factor BORIS in Normal Cells Results in Demethylation and Derepression of MAGE-A1 and Reactivation of Other Cancer-Testis Genes. Cancer Res 2005; 65:7751-62. [PMID: 16140943 DOI: 10.1158/0008-5472.can-05-0858] [Citation(s) in RCA: 149] [Impact Index Per Article: 7.8] [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: 11/16/2022]
Abstract
Brother of the Regulator of Imprinted Sites (BORIS) is a mammalian CTCF paralog with the same central 11Zn fingers (11ZF) that mediate specific interactions with varying approximately 50-bp target sites. Regulated in vivo occupancy of such sites may yield structurally and functionally distinct CTCF/DNA complexes involved in various aspects of gene regulation, including epigenetic control of gene imprinting and X chromosome inactivation. The latter functions are mediated by meCpG-sensitive 11ZF binding. Because CTCF is normally present in all somatic cells, whereas BORIS is active only in CTCF- and 5-methylcytosine-deficient adult male germ cells, switching DNA occupancy from CTCF to BORIS was suggested to regulate site specificity and timing of epigenetic reprogramming. In addition to 11ZF-binding paternal imprinting control regions, cancer-testis gene promoters also undergo remethylation during CTCF/BORIS switching in germ cells. Only promoters of cancer testis genes are normally silenced in all somatic cells but activated during spermatogenesis when demethylated in BORIS-positive germ cells and are found aberrantly derepressed in various tumors. We show here that BORIS is also expressed in multiple cancers and is thus itself a cancer-testis gene and that conditional expression of BORIS in normal fibroblasts activates cancer-testis genes selectively. We tested if replacement of CTCF by BORIS on regulatory DNA occurs in vivo on activation of a prototype cancer-testis gene, MAGE-A1. Transition from a hypermethylated/silenced to a hypomethylated/activated status induced in normal cells by 5-aza-2'-deoxycytidine (5-azadC) was mimicked by conditional input of BORIS and is associated with complete switching from CTCF to BORIS occupancy at a single 11ZF target. This site manifested a novel type of CTCF/BORIS 11ZF binding insensitive to CpG methylation. Whereas 5-azadC induction of BORIS takes only few hours, derepression of MAGE-A1 occurred 1 to 2 days later, suggesting that BORIS mediates cancer-testis gene activation by 5-azadC. Indeed, infection of normal fibroblasts with anti-BORIS short hairpin RNA retroviruses before treatment with 5-azadC blocked reactivation of MAGE-A1. We suggest that BORIS is likely tethering epigenetic machinery to a novel class of CTCF/BORIS 11ZF target sequences that mediate induction of cancer-testis genes.
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Affiliation(s)
- Sergei Vatolin
- Laboratory of Immunopathology, National Institutes of Allergy and Infectious Disease, NIH, Bethesda, Maryland, USA
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Spiridonov NA, Wong L, Zerfas PM, Starost MF, Pack SD, Paweletz CP, Johnson GR. Identification and characterization of SSTK, a serine/threonine protein kinase essential for male fertility. Mol Cell Biol 2005; 25:4250-61. [PMID: 15870294 PMCID: PMC1087724 DOI: 10.1128/mcb.25.10.4250-4261.2005] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [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] Open
Abstract
Here we describe and characterize a small serine/threonine kinase (SSTK) which consists solely of the N- and C-lobes of a protein kinase catalytic domain. SSTK protein is highly conserved among mammals, and no close homologues were found in the genomes of nonmammalian organisms. SSTK specifically interacts with HSP90-1beta, HSC70, and HSP70 proteins, and this association appears to be required for SSTK kinase activity. The SSTK transcript was most abundant in human and mouse testes but was also detected in all human tissues tested. In the mouse testis, SSTK protein was localized to the heads of elongating spermatids. Targeted deletion of the SSTK gene in mice resulted in male sterility due to profound impairment in motility and morphology of spermatozoa. A defect in DNA condensation in SSTK null mutants occurred in elongating spermatids at a step in spermiogenesis coincident with chromatin displacement of histones by transition proteins. SSTK phosphorylated histones H1, H2A, H2AX, and H3 but not H2B or H4 or transition protein 1 in vitro. These results demonstrate that SSTK is required for proper postmeiotic chromatin remodeling and male fertility. Abnormal sperm chromatin condensation is common in sterile men, and our results may provide insight into the molecular mechanisms underlying certain human infertility disorders.
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Affiliation(s)
- Nikolay A Spiridonov
- Division of Therapeutic Proteins, Center for Drug Evaluation and Research, Food and Drug Administration, HFD-122, Bldg. 29A, Rm. 3B-20, 8800 Rockville Pike, Bethesda, Maryland 20892, USA.
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32
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Pack SD, Qin LX, Pak E, Wang Y, Ault DO, Mannan P, Jaikumar S, Stratakis CA, Oldfield EH, Zhuang Z, Weil RJ. Common genetic changes in hereditary and sporadic pituitary adenomas detected by comparative genomic hybridization. Genes Chromosomes Cancer 2005; 43:72-82. [PMID: 15704128 DOI: 10.1002/gcc.20162] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Twenty-four pituitary adenomas, both the sporadic type (n = 18) and the type arising in association with either multiple endocrine neoplasia, type 1 (MEN1; n = 2), or Carney complex (CNC, n = 4) were analyzed by comparative genomic hybridization. Twenty-one (88%) tumors displayed chromosomal alterations. The number of chromosomal aberrations in each tumor varied from 2 to greater than 10. Several recurrent chromosomal abnormalities were identified in this study. The most frequently detected losses of chromosomal material involved 1p (14 of 24, 58%), 11p (11 of 24, 46%), 17 (10 of 24, 42%), 16p (9 of 24, 38%), 4 (8 of 24, 33%), 10p (6 of 24, 25%), 12 (6 of 24, 25%), 20 (6 of 24, 25%), 22q (6 of 24, 25%), 13q (5 of 24, 21%), and 9p (4 of 24, 17%). Copy number increases were detected on 4q (7 of 24, 29%), 17 (8 of 24, 33%), 19 (7 of 24, 29%), 1p (6 of 24, 25%), 5 (6 of 24, 25%), 20 (6 of 24, 25%), 6q (5 of 24, 21%), 13q21-qter (5 of 24, 21%), and 16p (5 of 24, 21%). Chromosome 11 loss, which involved 11p in all cases, was the most significant finding and was common to tumors arising sporadically and in association with MEN1 and CNC. In addition, the majority of the tumors (18 of 24, 75% overall and 86% of all tumors with chromosomal abnormalities) showed involvement of chromosome 1. Tumors had either loss (14 of 24, 58%) or gain (6 of 24, 25%) in the 1p32-1pter region. Finally, changes on chromosome 17, either loss or gain, occurred in 71% (17) of all 24 patients. In summary, all the tumors with chromosomal rearrangements (21 of 24, 88%), whether sporadic pituitary adenomas or those associated with MEN1 or CNC, had alteration(s) of 1p32, 11p, or 17.
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Affiliation(s)
- Svetlana D Pack
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
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Abstract
Tal1/SCL is a basic helix-loop-helix transcription factor critical for normal hematopoiesis. To understand the mechanisms underlying transcriptional regulation by Tal1/SCL, we combined an in vitro DNA binding strategy and an in vivo chromatin immunoprecipitation analysis to search for Tal1/SCL target regions in K562 erythroleukemia cells. A 0.4-kb genomic DNA clone containing two Tal1/SCL binding E-boxes and GATA- and SATB1-binding motifs (EEGS) was identified that localized to the pericentromeric region with high homology to satellite 2 DNA. Pericentric DNA is related to heterochromatin and gene inactivation. We found that Tal1/SCL could complex with the histone H3 lysine 9 (H3K9)-specific methyltransferase Suv39H1. Binding of Tal1/SCL to EEGS chromatin correlated with hypermethylation of H3K9 and the association of heterochromatin protein HP1 to this region. In Rep4 reporter gene assays, EEGS affected repression in a manner dependent on the expression level of Tal1/SCL that was accompanied by increased H3K9 methylation in chromatin associated with EEGS and a linked promoter. A specific histone deacetylase inhibitor, trichostatin A, relieved Tal1/SCL-mediated repression by EEGS. In addition, SATB1 bound EEGS chromatin and promoted Tal1/SCL EEGS-dependent repression. We expand the list of potential interacting partners for Tal1/SCL by demonstrating direct associations of Tal1/SCL with SATB1 and with Suv39H1. These results reveal a novel mechanism of action for Tal1/SCL and implicate heterochromatin-like silencing via a cis-acting binding motif for transcriptional repression.
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Affiliation(s)
- Jie Wen
- Molecular Medicine Branch, NIDDK, National Institutes of Health, Bethesda, Maryland 20892, USA
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Pack SD, Alper OM, Stromberg K, Augustus M, Ozdemirli M, Miermont AM, Klus G, Rusin M, Slack R, Hacker NF, Ried T, Szallasi Z, Alper O. Simultaneous Suppression of Epidermal Growth Factor Receptor and c-erbB-2 Reverses Aneuploidy and Malignant Phenotype of a Human Ovarian Carcinoma Cell Line. Cancer Res 2004; 64:789-94. [PMID: 14871800 DOI: 10.1158/0008-5472.can-03-1982] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [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: 11/16/2022]
Abstract
Coexpression of epidermal growth factor receptor (EGFR) and c-erbB-2 in 47-68% of ovarian cancer cells indicate their strong association with tumor formation. We examined the effects of simultaneous antisense- or immunosuppression of EGFR and c-erbB-2 expression on the invasive phenotype, aneuploidy, and genotype of cultured human ovarian carcinoma cells (NIH:OVCAR-8). We report here that suppression of both EGFR and c-erbB-2 results in regression of aneuploidy and genomic imbalances in NIH:OVCAR-8 cells, restores a more normal phenotype, and results in a more normal gene expression profile. Combined with cytogenetic analysis, our data demonstrate that the regression of aneuploidy is due to the selective apoptosis of double antisense transfected cells with highly abnormal karyotype.
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Affiliation(s)
- Svetlana D Pack
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institues of Health, Bethesda, Maryland, USA
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35
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Wait SD, Vortmeyer AO, Lonser RR, Chang DT, Finn MA, Bhowmick DA, Pack SD, Oldfield EH, Zhuang Z. Somatic mutations inVHL germline deletion kindred correlate with mild phenotype. Ann Neurol 2004; 55:236-40. [PMID: 14755727 DOI: 10.1002/ana.10807] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Generally, von Hippel-Lindau (VHL) disease is caused by a germline mutation of the VHL gene (chromosome 3p), and tumorigenesis is initiated from a "second-hit" deletion. A subset of VHL patients have a germline deletion of the VHL gene, and the molecular events leading to tumorigenesis are not fully understood. To determine the molecular pathogenesis of tumor formation in this setting, we analyzed five central nervous system hemangioblastomas from three patients of a single VHL germline deletion kindred, all displaying mild clinical phenotype. Rather than loss of heterozygosity (the "second hit" in VHL germline mutation patients), all tumors from this kindred showed "second-hit" point mutations on the wild-type allele. Moreover, in two patients who each had two hemangioblastomas resected each tumor contained a unique mutation. The specific germline deletion and the overall genetic makeup of the patient did not predict these random "second-hit" point mutations. These results suggest that in patients with germline deletion of a tumor suppressor gene there is a unique genetic mechanism underlying tumorigenesis. This unique genetic mechanism correlates with and may help to understand the mild clinical phenotype seen in these patients.
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Affiliation(s)
- Scott D Wait
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20982, USA
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36
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Debelenko LV, Arthur DC, Pack SD, Helman LJ, Schrump DS, Tsokos M. Identification of CARS-ALK fusion in primary and metastatic lesions of an inflammatory myofibroblastic tumor. J Transl Med 2003; 83:1255-65. [PMID: 13679433 DOI: 10.1097/01.lab.0000088856.49388.ea] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.7] [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: 12/11/2022] Open
Abstract
Inflammatory myofibroblastic tumor (IMT) is a rare childhood neoplasm. The natural history of this disease is poorly understood. Recently chromosomal rearrangements involving the anaplastic lymphoma kinase (ALK) gene have been implicated in this tumor. We have studied a case of ALK-positive soft tissue IMT showing clinical and morphologic features of malignancy. Interphase fluorescence in situ hybridization demonstrated ALK rearrangements in both primary and metastatic lesions. Rapid amplification of cDNA ends (5'RACE) identified cysteinyl-tRNA synthetase (CARS) gene fused to ALK, which predicts an in-frame chimeric protein with the preserved functional catalytic domain of ALK at the C terminus. Amplification and sequencing of tumor DNA confirmed the breakpoint at the genomic level. Restriction analysis of DNA from primary soft tissue and recurrent lung tumors showed identical patterns, indicating the same clonal origin of both lesions. Western blot analysis with C-terminus ALK antibody showed expression of an aberrantly sized chimeric protein of approximately 130 kd in tumor tissue. This is the second case of IMT demonstrating CARS as the ALK fusion partner, which confirms the recurring involvement of ALK in IMT by a common genetic mechanism. Moreover, identical clonality of separate lesions involving different sites supports metastasis in IMT.
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Affiliation(s)
- Larisa V Debelenko
- Laboratory of Pathology, National Institutes of Health, National Cancer Institute, Bethesda, Maryland, USA
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37
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Huang SC, Torres-Cruz J, Pack SD, Koch CA, Vortmeyer AO, Mannan P, Lubensky IA, Gagel RF, Zhuang Z. Amplification and overexpression of mutant RET in multiple endocrine neoplasia type 2-associated medullary thyroid carcinoma. J Clin Endocrinol Metab 2003; 88:459-63. [PMID: 12519890 DOI: 10.1210/jc.2002-021254] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
We have previously identified two second hit mechanisms involved in the development of multiple endocrine neoplasia type 2 (MEN 2)-associated tumors: trisomy 10 with duplication of the mutant RET allele and loss of the wild-type RET allele. However, some of the MEN 2-associated tumors investigated did not demonstrate either mechanism. Here, we studied the TT cell line derived from MEN 2-associated medullary thyroid carcinoma with a RET germline mutation in codon 634, for alternative mechanisms of tumorigenesis. Although we observed a 2:1 ratio between mutant and wild-type RET at the genomic DNA level in this cell line, fluorescence in situ hybridization analysis revealed neither trisomy 10 nor loss of the normal chromosome 10. Instead, a tandem duplication event was responsible for amplification of mutant RET. In further studies we could for the first time demonstrate that the genomic chromosome 10 abnormalities in this cell line cause an increased production of mutant RET mRNA. These findings provide evidence for a third second hit mechanism resulting in overrepresentation and overexpression of mutant RET in MEN 2-associated tumors.
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Affiliation(s)
- Steve C Huang
- Molecular Pathogenesis Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892, USA
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38
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Lonser RR, Walbridge S, Vortmeyer AO, Pack SD, Nguyen TT, Gogate N, Olson JJ, Akbasak A, Bobo RH, Goffman T, Zhuang Z, Oldfield EH. Tumor Young Investigator Award: induction of glioblastoma multiforme in primates after fractionated whole-brain irradiation in the therapeutic dose range. Clin Neurosurg 2003; 50:350-73. [PMID: 14677452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Affiliation(s)
- Russell R Lonser
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
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39
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Lonser RR, Walbridge S, Vortmeyer AO, Pack SD, Nguyen TT, Gogate N, Olson JJ, Akbasak A, Bobo RH, Goffman T, Zhuang Z, Oldfield EH. Induction of glioblastoma multiforme in nonhuman primates after therapeutic doses of fractionated whole-brain radiation therapy. J Neurosurg 2002; 97:1378-89. [PMID: 12507137 DOI: 10.3171/jns.2002.97.6.1378] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT To determine the acute and long-term effects of a therapeutic dose of brain radiation in a primate model, the authors studied the clinical, laboratory, neuroimaging, molecular, and histological outcomes in rhesus monkeys that had received fractionated whole-brain radiation therapy (WBRT). METHODS Twelve 3-year-old male primates (Macaca mulatta) underwent fractionated WBRT (350 cGy for 5 days/week for 2 weeks, total dose 3500 cGy). Animals were followed clinically and with laboratory studies and serial magnetic resonance (MR) imaging. They were killed when they developed medical problems or neurological symptoms, lesions appeared on MR imaging, or at study completion. Gross, histological, and molecular analyses were then performed. Nine (82%) of 11 animals that underwent long-term follow up (> 2.5 years) developed neurological symptoms and/or enhancing lesions on MR imaging, which were defined as glioblastoma multiforme (GBM), 2.9 to 8.3 years after radiation therapy. The GBMs were categorized as either unifocal (three) or multifocal (six), and were located in the supratentorial (six), infratentorial (two), or both (one) cranial regions. Histological examination revealed distant, noncontiguous tumor invasion within the white matter of all nine animals harboring GBMs. Novel interspecies comparative genomic hybridization (three animals) uniformly showed deletions in the GBMs that corresponded to chromosome 9 in humans. CONCLUSIONS The high rate of GBM formation (82%) following a therapeutic dose of WBRT in nonhuman primates indicates that radioinduction of these neoplasms as a late complication of this therapy may occur more frequently than is currently recognized in human patients. The development of these tumors while monitoring the monkeys' conditions with clinical and serial MR imaging studies, and access to the tumor and the entire brain for histological and molecular analyses offers an opportunity to gather unique insights into the nature and development of GBMs.
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Affiliation(s)
- Russell R Lonser
- Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke National Institutes of Health, Bethesda, Maryland 20892-1414, USA
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40
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Martin CL, Waggoner DJ, Wong A, Uhrig S, Roseberry JA, Hedrick JF, Pack SD, Russell K, Zackai E, Dobyns WB, Ledbetter DH. "Molecular rulers" for calibrating phenotypic effects of telomere imbalance. J Med Genet 2002; 39:734-40. [PMID: 12362030 PMCID: PMC1734978 DOI: 10.1136/jmg.39.10.734] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [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: 12/08/2022]
Abstract
As a result of the increasing use of genome wide telomere screening, it has become evident that a significant proportion of people with idiopathic mental retardation have subtle abnormalities involving the telomeres of human chromosomes. However, during the course of these studies, there have also been telomeric imbalances identified in normal people that are not associated with any apparent phenotype. We have begun to scrutinize cases from both of these groups by determining the extent of the duplication or deletion associated with the imbalance. Five cases were examined where the telomere rearrangement resulted in trisomy for the 16p telomere. The size of the trisomic segment ranged from approximately 4-7 Mb and the phenotype included mental and growth retardation, brain malformations, heart defects, cleft palate, pancreatic insufficiency, genitourinary abnormalities, and dysmorphic features. Three cases with telomeric deletions without apparent phenotypic effects were also examined, one from 10q and two from 17p. All three deletions were inherited from a phenotypically normal parent carrying the same deletion, thus without apparent phenotypic effect. The largest deletion among these cases was approximately 600 kb on 17p. Similar studies are necessary for all telomeric regions to differentiate between those telomeric rearrangements that are pathogenic and those that are benign variants. Towards this goal, we are developing "molecular rulers" that incorporate multiple clones at each telomere that span the most distal 5 Mb region. While telomere screening has enabled the identification of telomere rearrangements, the use of molecular rulers will allow better phenotype prediction and prognosis related to these findings.
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Affiliation(s)
- C L Martin
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
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41
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Srivatsan ES, Chakrabarti R, Zainabadi K, Pack SD, Benyamini P, Mendonca MS, Yang PK, Kang K, Motamedi D, Sawicki MP, Zhuang Z, Jesudasan RA, Bengtsson U, Sun C, Roe BA, Stanbridge EJ, Wilczynski SP, Redpath JL. Localization of deletion to a 300 Kb interval of chromosome 11q13 in cervical cancer. Oncogene 2002; 21:5631-42. [PMID: 12165862 DOI: 10.1038/sj.onc.1205698] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [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] [Received: 01/08/2002] [Revised: 05/15/2002] [Accepted: 05/20/2002] [Indexed: 11/09/2022]
Abstract
Previous molecular genetic studies on HeLa cell (a cervical cancer cell line) derived non-tumorigenic and tumorigenic hybrids have localized a tumor suppressor gene to the long arm of chromosome 11. Analysis of cervical cancer cell lines using chromosome 11 specific probes showed deletion and translocation of 11q13 sequences in five out of eight cell lines. Fluorescence in situ hybridization (FISH), using 11q13 specific probes, has shown interstitial deletion of 11q13 sequences in the HeLa cells. In order to determine whether 11q13 deletions occur in primary cervical tumors, we analysed 36 tumors using 20 different microsatellite and RFLP markers. Semi automated fluorescein based allelotyping was performed to identify loss of heterozygosity (LOH) in tumors. The results showed allelic loss in 17 (47%) tumors. Three different regions of loss, one near MEN1, the second near D11S913, and the third near INT2 locus were observed. The smallest region of deletion overlap at the D11S913 locus was localized to a 300 Kb distance between D11S4908 and D11S5023. Fluorescence in situ hybridization (FISH), using 11q13 specific cosmid and BAC (bacterial artificial chromosome) probes, confirmed allelic deletion in the tumors. PCR analysis further identified homozygous deletion of 11q13 sequences in a primary tumor, in HeLa cells and in two HeLa cell derived tumorigenic hybrid cell lines. The homozygous deletion in the cell lines was mapped to a 5.7 kb sequence of 11q13. We hypothesize therefore that a putative cervical cancer tumor suppressor gene exists within the 300 kb of chromosome 11q13.
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MESH Headings
- Centromere/genetics
- Chromosome Deletion
- Chromosome Mapping
- Chromosomes, Artificial, Bacterial/genetics
- Chromosomes, Artificial, Bacterial/metabolism
- Chromosomes, Human, Pair 11/genetics
- DNA Primers/chemistry
- DNA, Neoplasm/analysis
- Endometrium/pathology
- Female
- Genes, Tumor Suppressor
- HeLa Cells
- Humans
- Hybrid Cells
- Image Processing, Computer-Assisted
- In Situ Hybridization, Fluorescence
- Karyotyping
- Loss of Heterozygosity
- Metaphase
- Microsatellite Repeats
- Neoplasm Proteins/genetics
- Polymorphism, Single-Stranded Conformational
- Proto-Oncogene Proteins
- Uterine Cervical Neoplasms/genetics
- Uterine Cervical Neoplasms/pathology
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Affiliation(s)
- Eri S Srivatsan
- Department of Surgery, VAGLAHS West Los Angeles, UCLA School of Medicine, Los Angeles, California, CA 90073, USA.
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42
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Loukinov DI, Pugacheva E, Vatolin S, Pack SD, Moon H, Chernukhin I, Mannan P, Larsson E, Kanduri C, Vostrov AA, Cui H, Niemitz EL, Rasko JEJ, Docquier FM, Kistler M, Breen JJ, Zhuang Z, Quitschke WW, Renkawitz R, Klenova EM, Feinberg AP, Ohlsson R, Morse HC, Lobanenkov VV. BORIS, a novel male germ-line-specific protein associated with epigenetic reprogramming events, shares the same 11-zinc-finger domain with CTCF, the insulator protein involved in reading imprinting marks in the soma. Proc Natl Acad Sci U S A 2002; 99:6806-11. [PMID: 12011441 PMCID: PMC124484 DOI: 10.1073/pnas.092123699] [Citation(s) in RCA: 259] [Impact Index Per Article: 11.8] [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: 01/29/2023] Open
Abstract
CTCF, a conserved, ubiquitous, and highly versatile 11-zinc-finger factor involved in various aspects of gene regulation, forms methylation-sensitive insulators that regulate X chromosome inactivation and expression of imprinted genes. We document here the existence of a paralogous gene with the same exons encoding the 11-zinc-finger domain as mammalian CTCF genes and thus the same DNA-binding potential, but with distinct amino and carboxy termini. We named this gene BORIS for Brother of the Regulator of Imprinted Sites. BORIS is present only in the testis, and expressed in a mutually exclusive manner with CTCF during male germ cell development. We show here that erasure of methylation marks during male germ-line development is associated with dramatic up-regulation of BORIS and down-regulation of CTCF expression. Because BORIS bears the same DNA-binding domain that CTCF employs for recognition of methylation marks in soma, BORIS is a candidate protein for the elusive epigenetic reprogramming factor acting in the male germ line.
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Affiliation(s)
- Dmitri I Loukinov
- Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892-0760, USA
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43
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Weil RJ, Vortmeyer AO, Zhuang Z, Pack SD, Theodore N, Erickson RK, Oldfield EH. Clinical and molecular analysis of disseminated hemangioblastomatosis of the central nervous system in patients without von Hippel-Lindau disease. Report of four cases. J Neurosurg 2002; 96:775-87. [PMID: 11990821 DOI: 10.3171/jns.2002.96.4.0775] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [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: 11/06/2022]
Abstract
Hemangioblastomas of the central nervous system (CNS) may occur sporadically or in association with von Hippel-Lindau (VHL) syndrome. The authors present four patients with no family history or clinical evidence of VHL syndrome in whom extensive, progressive, en plaque coating of the brainstem and spinal cord with hemangioblastomas developed 1 to 8 years after complete resection of a solitary cerebellar hemangioblastoma. Analysis included detailed physical, biochemical, radiological, and pathological examinations in all four patients, combined with family pedigree analysis. In addition, a detailed investigation of the VHL gene was undertaken. Allelic loss, comparative genomic hybridization (CGH), single-stranded conformational polymorphism screening, CpG island methylation status, and X chromosome inactivation clonality analyses were performed. Although there was no evidence of germline alterations in the VHL gene on clinical and radiological examination or in the family history (all four patients) or analysis of peripheral blood (three patients), somatic deletion of one copy of the VHL gene occurred in these tumors. These findings indicate that the multiple, separate deposits of tumors were likely derived from a single clone. Results of CGH indicate that one or several additional genes are probably involved in the malignant behavior of the hemangioblastomas in these patients. Furthermore, the malignant biological and clinical behavior of these tumors, in which multiple sites of subarachnoid dissemination developed 1 to 8 years after initial complete resection, followed by progressive tumor growth and death of the patients, occurred despite a histological appearance typical of benign hemangioblastomas. Malignant hemangioblastomatosis developed 1 to 8 years after resection of an isolated cerebellar hemangioblastoma. Alterations of the VHL gene may be permissive in this setting, but other genes are likely to be the source of the novel biological and clinical presentation of the disseminated hemangioblastomas in these patients. This appears to represent a novel condition in which the product of one or more mutations in several genes permits malignant tumor behavior despite retention of a benign histological picture, a circumstance previously not recognized in CNS tumors.
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Affiliation(s)
- Robert J Weil
- Surgical Neurology Branch, National Institutes of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892-1414, USA
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Vortmeyer AO, Huang SC, Pack SD, Koch CA, Lubensky IA, Oldfield EH, Zhuang Z. Somatic point mutation of the wild-type allele detected in tumors of patients with VHL germline deletion. Oncogene 2002; 21:1167-70. [PMID: 11850836 DOI: 10.1038/sj.onc.1205121] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [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: 07/13/2001] [Revised: 10/02/2001] [Accepted: 10/29/2001] [Indexed: 11/08/2022]
Abstract
The majority of patients with Von Hippel-Lindau (VHL) disease are affected by a VHL germline mutation involving one copy of the VHL gene. Loss of heterozygosity of the second VHL allele can be consistently demonstrated in tumor tissue from these patients, suggesting that allelic deletion is a very early or even initiating event for tumorigenesis. Approximately 20% of VHL disease patients, however, exhibit germline deletion of one entire copy or at least a substantial part of the VHL gene. To investigate the nature of the "second genetic hit" in this patient population, we analysed two renal cell carcinomas and one CNS hemangioblastoma from three unrelated patients for genetic changes of the second copy of the VHL gene. All three tumors showed retention of one VHL allele by FISH. Single-strand conformation polymorphism and mutation analysis of microdissected tumor DNA revealed somatic point mutations of the wild-type VHL copies in each of the three tumors. The results indicate that the "two hit model" is equally applicable to patients with VHL germline mutation and VHL germline deletion. In contrast to tumors from patients with VHL germline mutation, however, point mutations of the wild-type allele can be detected in tumors from patients with VHL germline deletion.
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Affiliation(s)
- Alexander O Vortmeyer
- Molecular Pathogenesis Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, Building 10, Room 5D37, Bethesda, MD 20892, USA
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Zhang J, Liu WL, Tang DC, Chen L, Wang M, Pack SD, Zhuang Z, Rodgers GP. Identification and characterization of a novel member of olfactomedin-related protein family, hGC-1, expressed during myeloid lineage development. Gene 2002; 283:83-93. [PMID: 11867215 DOI: 10.1016/s0378-1119(01)00763-6] [Citation(s) in RCA: 104] [Impact Index Per Article: 4.7] [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: 12/13/2022]
Abstract
We have cloned a novel hematopoietic granulocyte colony-stimulating factor (G-CSF)-induced olfactomedin-related glycoprotein, termed hGC-1 (human G-CSF-stimulated clone-1). mRNA differential display was used in conjunction with a modified two-phase liquid culture system. Cultures were enriched for early precursors of erythroid, myeloid, and megakaryocytic lineages, which were isolated after induction with erythropoietin, G-CSF, and thrombopoietin, respectively. RNA from the enriched cells was subjected to differential display analysis to identify lineage-specific expressed genes. One clone specifically induced by G-CSF, hGC-1, was characterized. The 2861 bp cDNA clone of hGC-1 contained an open reading frame of 1530 nucleotides, translating into a protein of 510 amino acids with a signal peptide and six N-linked glycosylation motifs. The protein sequence of hGC-1 showed it to be a glycoprotein of the olfactomedin family, which includes olfactomedin, TIGR, Noelin-2 and latrophilin-1. Olfactomedin-like genes show characteristic tissue-restricted patterns of expression; the specific tissues expressing these genes differ among the family members. hGC-1 was strongly expressed in the prostate, small intestine, and colon, moderately expressed in the bone marrow and stomach, and not detectable in other tissues. In vitro translation and ex vivo expression showed hGC-1 to be an N-linked glycoprotein. The hGC-1 gene locus mapped to chromosome 13q14.3. Together, our findings indicate that hGC-1 is primarily expressed as an extracellular olfactomedin-related glycoprotein during normal myeloid-specific lineage differentiation, suggesting the possibility of a matrix-related function for hGC-1 in differentiation.
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MESH Headings
- Amidohydrolases/metabolism
- Amino Acid Sequence
- Antigens, CD/pharmacology
- Blood Proteins/genetics
- Blood Proteins/metabolism
- Blotting, Western
- CD13 Antigens/pharmacology
- Cell Differentiation/drug effects
- Cell Line
- Chromosome Mapping
- Chromosomes, Human, Pair 13/genetics
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- Extracellular Matrix Proteins/genetics
- Female
- Gene Expression Regulation/drug effects
- Glycophorins/pharmacology
- Glycoproteins/genetics
- Glycosylation
- Granulocyte Colony-Stimulating Factor/genetics
- Granulocyte Colony-Stimulating Factor/metabolism
- HL-60 Cells
- Hematopoiesis/genetics
- Humans
- In Situ Hybridization, Fluorescence
- Integrin beta3
- K562 Cells
- Leukocytes, Mononuclear/cytology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/metabolism
- Male
- Molecular Sequence Data
- Myeloid Cells/cytology
- Myeloid Cells/drug effects
- Myeloid Cells/metabolism
- Peptide-N4-(N-acetyl-beta-glucosaminyl) Asparagine Amidase
- Platelet Membrane Glycoproteins/pharmacology
- Protein Biosynthesis
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Tumor Cells, Cultured
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Affiliation(s)
- Jiachang Zhang
- Molecular and Clinical Hematology Branch, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
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Qin LX, Tang ZY, Ye SL, Liu YK, Ma ZC, Zhou XD, Wu ZQ, Lin ZY, Sun FX, Tian J, Guan XY, Pack SD, Zhuang ZP. Chromosome 8p deletion is associated with metastasis of human hepatocellular carcinoma when high and low metastatic models are compared. J Cancer Res Clin Oncol 2001; 127:482-8. [PMID: 11501747 DOI: 10.1007/s004320100236] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [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: 12/20/2022]
Abstract
Recently, we found that chromosome 8p deletion might be associated with hepatocellular carcinoma (HCC) metastasis by analyzing the differences in chromosomal alterations between primary tumors and their matched metastatic lesions of HCC with comparative genomic hybridization (CGH) (Qin et al. 1999). To further confirm this interesting finding, the genomic changes of two models bearing human HCC with different metastatic potentials (LCI-D20 and LCI-D35), and the new human HCC cell line with high metastatic potential (MHCC97) were analyzed by CGH. Gains on 1q, 6q, 7p, and 8q, and losses on 13p, 14p, 19p, 21, and 22 were detected in both LCI-D20 and LCI-D35 models. However, high copy number amplification of a minimum region at 1q12-q22 and 12q, and deletions on 1p32-pter, 3p21-pter, 8p, 9p, 10q, 14q, and 15p were detected only in the LCI-D20 model. Gains on 1p21-p32, 2p13-p21, 6p12-pter, 9p, 15q, and 16q11-q21, and losses on 2p23-pter, 4q24-qter, 7q31-qter, 12q, 17p, and 18 were detected only in the LCI-D35 model. The chromosomal aberration patterns in the MHCC97 cell line were similar to its parent LCI-D20 model, except that gains on 19q and losses on 4, 5, 10q, and 13q were found only in the cell line. These results provide some indirect clues to the metastasis-related chromosomal aberrations of HCC and further support the finding that 8p deletion is associated with HCC metastasis. 1q12-22 and 12q might harbor a novel oncogene(s) that contributes to the development and progression of HCC. Amplification on 8q and deletions on 4q and 17p may be not necessary for HCC metastasis.
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MESH Headings
- Animals
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/secondary
- Chromosome Deletion
- Chromosomes, Human, Pair 1/genetics
- Chromosomes, Human, Pair 17/genetics
- Chromosomes, Human, Pair 6/genetics
- Chromosomes, Human, Pair 8/genetics
- Disease Models, Animal
- Humans
- In Situ Hybridization, Fluorescence
- Interphase
- Liver Neoplasms/genetics
- Liver Neoplasms/pathology
- Mice
- Mice, Nude
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Affiliation(s)
- L X Qin
- Liver Cancer Institute and Zhongshan Hospital, Medical Center of Fudan University, Shanghai, China
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Stratakis CA, Schussheim DH, Freedman SM, Keil MF, Pack SD, Agarwal SK, Skarulis MC, Weil RJ, Lubensky IA, Zhuang Z, Oldfield EH, Marx SJ. Pituitary macroadenoma in a 5-year-old: an early expression of multiple endocrine neoplasia type 1. J Clin Endocrinol Metab 2000; 85:4776-80. [PMID: 11134142 DOI: 10.1210/jcem.85.12.7064] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Multiple endocrine neoplasia type 1 (MEN 1) is associated with parathyroid, enteropancreatic, pituitary, and other tumors. The MEN1 gene, a tumor suppressor, is located on chromosome 11. Affected individuals inherit a mutated MEN1 allele, and tumorigenesis in specific tissues follows inactivation of the remaining MEN1 allele. MEN 1-associated endocrine tumors usually become clinically evident in late adolescence or young adulthood, as high levels of PTH, gastrin, or PRL. Because each of these tumors can usually be controlled with medications and/or surgery, MEN 1 has been regarded mainly as a treatable endocrinopathy of adults. Unlike in MEN 2, early testing of children in MEN 1 families is not recommended. We report a 2.3-cm pituitary macroadenoma in a 5-yr-old boy with familial MEN 1. He presented with growth acceleration, acromegaloid features, and hyperprolactinemia. We tested systematically to see whether his pituitary tumor had causes similar to or different from a typical MEN 1 tumor. Germ line DNA of the propositus and his affected relatives revealed a heterozygous point mutation in the MEN1 gene, which leads to a His139Asp (H139D) amino acid substitution. The patient had no other detectable germ-line mutations on either MEN1 allele. DNA sequencing and fluorescent in situ hybridization with a MEN1 genomic DNA sequence probe each demonstrated one copy of the MEN1 gene to be deleted in the pituitary tumor and not in normal DNA, proving MEN1 "second hit" as a tumor cause. Gsalpha mutation, common in nonhereditary GH-producing tumors, was not detected in this tumor. We conclude that this pituitary macroadenoma showed molecular genetic features of a typical MEN 1-associated tumor. This patient represents the earliest presentation of any morbid endocrine tumor in MEN 1. A better understanding of early onset MEN 1 disease is needed to formulate recommendations for early MEN 1 genetic testing.
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Affiliation(s)
- C A Stratakis
- Developmental Endocrinology Branch, National Institute of Child Health and Human Development, National Institute of Health, Bethesda, MD 20892-1862, USA.
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Huang SC, Koch CA, Vortmeyer AO, Pack SD, Lichtenauer UD, Mannan P, Lubensky IA, Chrousos GP, Gagel RF, Pacak K, Zhuang Z. Duplication of the mutant RET allele in trisomy 10 or loss of the wild-type allele in multiple endocrine neoplasia type 2-associated pheochromocytomas. Cancer Res 2000; 60:6223-6. [PMID: 11103773] [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: 02/18/2023]
Abstract
Inherited mutations of the RET proto-oncogene are tumorigenic in patients with multiple endocrine neoplasia type 2 (MEN 2). However, it is not understood why only few of the affected cells in the target organs develop into tumors. Genetic analysis of nine pheochromocytomas from five unrelated patients with MEN 2 showed either duplication of the mutant RET allele in trisomy 10 or loss of the wild-type RET allele. Our results suggest a "second hit" causing a dominant effect of the mutant RET allele, through either duplication of the mutant allele or loss of the wild-type allele, as a possible mechanism for pheochromocytoma tumorigenesis in patients with MEN 2.
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Affiliation(s)
- S C Huang
- Molecular Pathogenesis Unit, Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland 20892, USA
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Pack SD, Pak E, Tanigami A, Ledbetter DH, Fukuda MN. Assignment1 of the bystin gene BYSL to human chromosome band 6p21.1 by in situ hybridization. Cytogenet Cell Genet 2000; 83:76-7. [PMID: 9925933 DOI: 10.1159/000015131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- S D Pack
- National Institutes of Health, National Cancer Institute, Bethesda MD (USA)
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Gubin AN, Njoroge JM, Wojda U, Pack SD, Rios M, Reid ME, Miller JL. Identification of the dombrock blood group glycoprotein as a polymorphic member of the ADP-ribosyltransferase gene family. Blood 2000; 96:2621-7. [PMID: 11001920] [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] Open
Abstract
Identification of the 25 known human blood group molecules is of fundamental importance for the fields of erythroid cell biology and transfusion medicine. Here we provide the first molecular description of the "Dombrock" blood group system. A candidate gene was identified by in silico analyses of approximately 5000 expressed sequence tags (ESTs) from terminally differentiating human erythroid cells. Transfection experiments demonstrated specific binding of anti-Dombrock and confirmed glycosylphosphatidylinositol membrane attachment. Dombrock expression is developmentally regulated during erythroid differentiation and occurs at highest levels in the fetal liver. Homology studies suggest that the Dombrock molecule is a member of the adenosine 5'-diphosphate (ADP)-ribosyltransferase ectoenzyme gene family. Genotypic comparisons suggest Do(a) versus Do(b) antigenicity results from a single amino acid substitution within an encoded arginine-glycine-aspartic acid (RGD) motif of the molecule.
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Affiliation(s)
- A N Gubin
- Laboratory of Chemical Biology, National Institute of Diabetes and Digestive and Kidney Diseases, and the Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
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