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Hernández-Ramírez LC, Perez-Rivas LG, Theodoropoulou M, Korbonits M. An Update on the Genetic Drivers of Corticotroph Tumorigenesis. Exp Clin Endocrinol Diabetes 2024. [PMID: 38830604 DOI: 10.1055/a-2337-2265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
The genetic landscape of corticotroph tumours of the pituitary gland has dramatically changed over the last 10 years. Somatic changes in the USP8 gene account for the most common genetic defect in corticotrophinomas, especially in females, while variants in TP53 or ATRX are associated with a subset of aggressive tumours. Germline defects have also been identified in patients with Cushing's disease: some are well-established (MEN1, CDKN1B, DICER1), while others are rare and could represent coincidences. In this review, we summarise the current knowledge on the genetic drivers of corticotroph tumorigenesis, their molecular consequences, and their impact on the clinical presentation and prognosis.
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Affiliation(s)
- Laura C Hernández-Ramírez
- Red de Apoyo a la Investigación, Coordinación de la Investigación Científica, Universidad Nacional Autónoma de México e Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | | | - Marily Theodoropoulou
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, LMU München, Munich 80336, Germany
| | - Márta Korbonits
- Centre for Endocrinology, Barts and The London School of Medicine, Queen Mary University of London, Charterhouse Square, London, UK
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2
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Wang F, Zhou C, Zhu Y, Keshavarzi M. The microRNA Let-7 and its exosomal form: Epigenetic regulators of gynecological cancers. Cell Biol Toxicol 2024; 40:42. [PMID: 38836981 PMCID: PMC11153289 DOI: 10.1007/s10565-024-09884-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/15/2024] [Indexed: 06/06/2024]
Abstract
Many types of gynecological cancer (GC) are often silent until they reach an advanced stage, and are therefore often diagnosed too late for effective treatment. Hence, there is a real need for more efficient diagnosis and treatment for patients with GC. During recent years, researchers have increasingly studied the impact of microRNAs cancer development, leading to a number of applications in detection and treatment. MicroRNAs are a particular group of tiny RNA molecules that regulate regular gene expression by affecting the translation process. The downregulation of numerous miRNAs has been observed in human malignancies. Let-7 is an example of a miRNA that controls cellular processes as well as signaling cascades to affect post-transcriptional gene expression. Recent research supports the hypothesis that enhancing let-7 expression in those cancers where it is downregulated may be a potential treatment option. Exosomes are tiny vesicles that move through body fluids and can include components like miRNAs (including let-7) that are important for communication between cells. Studies proved that exosomes are able to enhance tumor growth, angiogenesis, chemoresistance, metastasis, and immune evasion, thus suggesting their importance in GC management.
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Affiliation(s)
- Fei Wang
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China
| | - Chundi Zhou
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China
| | - Yanping Zhu
- Haiyan People's Hospital, Zhejiang Province, Jiaxing, 314300, Zhejiang, China.
| | - Maryam Keshavarzi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Tehran, Iran.
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3
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Thorner PS, Chong AL, Apellaniz-Ruiz M, Benlimame N, Marrano P, Brimo F, Shuangshoti S, Shuangshoti S, Foulkes WD. Estrogen Receptor Expression in DICER1-related Lesions is Associated With the Presence of Cystic Components. Am J Surg Pathol 2024; 48:733-741. [PMID: 38539053 DOI: 10.1097/pas.0000000000002209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
DICER1 tumor predisposition syndrome results from pathogenic variants in DICER1 and is associated with a variety of benign and malignant lesions, typically involving kidney, lung, and female reproductive system. Over 70% of sarcomas in DICER1 tumor predisposition syndrome occur in females. Notably, pediatric cystic nephroma (pCN), a classic DICER1 tumor predisposition syndrome lesion, shows estrogen receptor (ER) expression in stromal cells. There are also renal, hepatic, and pancreatic lesions unassociated with DICER1 tumor predisposition syndrome that have an adult female predominance and are characterized/defined by ER-positive stromal cells. Except for pCN, the expression of ER in DICER1-associated lesions remains uninvestigated. In the present study, ER expression was assessed by immunohistochemistry in 89 cases of DICER1-related lesions and 44 lesions lacking DICER1 pathogenic variants. Expression was seen in stromal cells in pCN and pleuropulmonary blastoma (PPB) types I and Ir, whereas anaplastic sarcoma of kidney and PPB types II and III were typically negative, as were other solid tumors of non-Müllerian origin. ER expression was unrelated to the sex or age of the patient. Expression of ER showed an inverse relationship to preferentially expressed antigen in melanoma (PRAME) expression; as lesions progressed from cystic to solid (pCN/anaplastic sarcoma of kidney, and PPB types I to III), ER expression was lost and (PRAME) expression increased. Thus, in DICER1 tumor predisposition syndrome, there is no evidence that non-Müllerian tumors are hormonally driven and antiestrogen therapy is not predicted to be beneficial. Lesions not associated with DICER1 pathogenic variants also showed ER-positive stromal cells, including cystic pulmonary airway malformations, cystic renal dysplasia, and simple renal cysts in adult kidneys. ER expression in stromal cells is not a feature of DICER1 perturbation but rather is related to the presence of cystic components.
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Affiliation(s)
- Paul Scott Thorner
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Anne-Laure Chong
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, Canada
- Cancer Axis, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada
| | - Maria Apellaniz-Ruiz
- Cancer Axis, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
- Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec
| | - Naciba Benlimame
- Research Pathology Facility, Lady Davis Institute, Jewish General Hospital, Montreal, Canada
| | - Paula Marrano
- Department of Pediatric Laboratory Medicine, Hospital for Sick Children, Toronto
| | - Fadi Brimo
- Department of Pathology, McGill University Health Centre, Montreal, QC, Canada
| | - Somruetai Shuangshoti
- Institute of Pathology, Department of Medical Services, Ministry of Public Health, Bangkok, Thailand
| | - Shanop Shuangshoti
- Department of Pathology and Chulalongkorn GenePRO Center, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - William D Foulkes
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, Canada
- Cancer Axis, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, Canada
- Department of Human Genetics, McGill University, Montreal, Canada
- Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec
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4
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Thorner PS, Chong AS, Nadaf J, Benlimame N, Marrano P, Chami R, Fu L, Foulkes WD. PRAME protein expression in DICER1-related tumours. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2022; 8:294-304. [PMID: 35297207 PMCID: PMC8977278 DOI: 10.1002/cjp2.264] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/28/2022] [Accepted: 01/30/2022] [Indexed: 11/09/2022]
Abstract
DICER1 syndrome is an autosomal dominant tumour predisposition syndrome usually affecting persons under 30 years of age. Many of the associated benign and malignant lesions occur almost exclusively in DICER1 syndrome. One such tumour, pituitary blastoma (pitB), overexpresses PRAME 500x above control levels. PRAME (PReferentially expressed Antigen in MElanoma) is expressed in malignancies that are not DICER1-related (e.g. melanoma). To address whether PRAME expression is part of the DICER1 phenotype, or simply a feature of pitB, a series of 75 DICER1-mutated specimens and 33 non-mutated specimens was surveyed using immunohistochemistry for PRAME, together with EZH2, which complexes with PRAME. In DICER1-mutated specimens, positive staining for PRAME was only seen in malignant tumours; 7 of 11 histological types and 34/62 individual tumours were positive, while non-tumourous lesions were always negative. Pleuropulmonary blastoma (PPB) showed a continuum in staining, with type I lesions being PRAME negative (n = 7) but all type II and type III lesions PRAME positive (n = 7). Similarly, cystic nephroma (CN) was negative (n = 8), with anaplastic sarcoma of the kidney being positive (n = 2). However, one atypical CN with mesenchymal cell proliferation was PRAME-positive. Embryonal rhabdomyosarcoma (RMS) with DICER1 pathogenic variants (PVs) was positive for PRAME (5/6), but the same tumour type without DICER1 PVs was also positive (9/15). Staining for EZH2 corresponded to that seen with PRAME, validating the latter. This study leads us to conclude that (1) PRAME expression occurs in two-thirds of DICER1-related malignancies; (2) PRAME may be a marker for the progression that certain DICER1-related lesions are thought to undergo, such as PPB and CN; and (3) PRAME expression in some tumours, such as RMS, appears to be an intrinsic feature of the tumour, rather than specifically related to DICER1 PVs. Therapy directed against PRAME may offer novel treatment options in patients with the DICER1 syndrome.
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Affiliation(s)
- Paul S Thorner
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Anne-Sophie Chong
- Department of Human Genetics, McGill University, Montreal, QC, Canada.,Cancer Axis, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada.,Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Javad Nadaf
- Department of Human Genetics, McGill University, Montreal, QC, Canada.,Cancer Axis, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada
| | - Naciba Benlimame
- Research Pathology Facility, Lady Davis Institute, Jewish General Hospital, Montreal, QC, Canada
| | - Paula Marrano
- Division of Pathology, Hospital for Sick Children, Toronto, ON, Canada
| | - Rose Chami
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Division of Pathology, Hospital for Sick Children, Toronto, ON, Canada
| | - Lili Fu
- Department of Pathology, McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - William D Foulkes
- Department of Human Genetics, McGill University, Montreal, QC, Canada.,Cancer Axis, Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada.,Cancer Research Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Gerald Bronfman Department of Oncology, McGill University, Montreal, QC, Canada
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5
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González IA, Stewart DR, Schultz KAP, Field AP, Hill DA, Dehner LP. DICER1 tumor predisposition syndrome: an evolving story initiated with the pleuropulmonary blastoma. Mod Pathol 2022; 35:4-22. [PMID: 34599283 PMCID: PMC8695383 DOI: 10.1038/s41379-021-00905-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/09/2021] [Accepted: 08/09/2021] [Indexed: 02/06/2023]
Abstract
DICER1 syndrome (OMIM 606241, 601200) is a rare autosomal dominant familial tumor predisposition disorder with a heterozygous DICER1 germline mutation. The most common tumor seen clinically is the pleuropulmonary blastoma (PPB), a lung neoplasm of early childhood which is classified on its morphologic features into four types (IR, I, II and III) with tumor progression over time within the first 4-5 years of life from the prognostically favorable cystic type I to the unfavorable solid type III. Following the initial report of PPB, its association with other cystic neoplasms was demonstrated in family studies. The detection of the germline mutation in DICER1 provided the opportunity to identify and continue to recognize a number seemingly unrelated extrapulmonary neoplasms: Sertoli-Leydig cell tumor, gynandroblastoma, embryonal rhabdomyosarcomas of the cervix and other sites, multinodular goiter, differentiated and poorly differentiated thyroid carcinoma, cervical-thyroid teratoma, cystic nephroma-anaplastic sarcoma of kidney, nasal chondromesenchymal hamartoma, intestinal juvenile-like hamartomatous polyp, ciliary body medulloepithelioma, pituitary blastoma, pineoblastoma, primary central nervous system sarcoma, embryonal tumor with multilayered rosettes-like cerebellar tumor, PPB-like peritoneal sarcoma, DICER1-associated presacral malignant teratoid neoplasm and other non-neoplastic associations. Each of these neoplasms is characterized by a second somatic mutation in DICER1. In this review, we have summarized the salient clinicopathologic aspects of these tumors whose histopathologic features have several overlapping morphologic attributes particularly the primitive mesenchyme often with rhabdomyoblastic and chondroid differentiation and an uncommitted spindle cell pattern. Several of these tumors have an initial cystic stage from which there is progression to a high grade, complex patterned neoplasm. These pathologic findings in the appropriate clinical setting should serve to alert the pathologist to the possibility of a DICER1-associated neoplasm and initiate appropriate testing on the neoplasm and to alert the clinician about the concern for a DICER1 mutation.
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Affiliation(s)
- Iván A. González
- grid.239552.a0000 0001 0680 8770Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA USA
| | - Douglas R. Stewart
- grid.48336.3a0000 0004 1936 8075Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD USA
| | - Kris Ann P. Schultz
- International Pleuropulmonary Blastoma/DICER1 Registry, Children’s Minnesota, Minneapolis, MN USA ,Cancer and Blood Disorders, Children’s Minnesota, Minneapolis, MN USA
| | | | - D. Ashley Hill
- International Pleuropulmonary Blastoma/DICER1 Registry, Children’s Minnesota, Minneapolis, MN USA ,ResourcePath LLC, Sterling, VA USA ,grid.253615.60000 0004 1936 9510Division of Pathology, Children’s National Medical Center, George Washington University School of Medicine and Health Sciences, Washington, DC USA
| | - Louis P. Dehner
- International Pleuropulmonary Blastoma/DICER1 Registry, Children’s Minnesota, Minneapolis, MN USA ,grid.411019.cThe Lauren V. Ackerman Laboratory of Surgical Pathology, Barnes-Jewish and St. Louis Children’s Hospitals, Washington University Medical Center, St. Louis, MO USA
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6
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DICER1-sarcoma: an emerging entity. Mod Pathol 2021; 34:2096-2097. [PMID: 34642426 DOI: 10.1038/s41379-021-00935-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 11/08/2022]
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7
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Li Y, Xi SY, Yong JJ, Wu XY, Yang XH, Wang F. Morphologic, Immunohistochemical, and Genetic Differences Between High-grade and Low-grade Fetal Adenocarcinomas of the Lung. Am J Surg Pathol 2021; 45:1464-1475. [PMID: 34138800 PMCID: PMC8508719 DOI: 10.1097/pas.0000000000001744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Fetal adenocarcinoma of the lung (FLAC) is a rare lung tumor classified into low-grade fetal adenocarcinoma of the lung (LG-FLAC) and high-grade fetal adenocarcinoma of the lung (HG-FLAC). It remains debatable whether HG-FLAC is a subset of FLAC or a distinct subtype of the conventional lung adenocarcinoma (CLA). In this study, samples of 4 LG-FLAC and 2 HG-FLAC cases were examined, and the clinicopathologic, immunohistochemical (IHC), and mutational differences between the 2 subtypes were analyzed using literature review. Morphologically, LG-FLACs had a pure pattern with complex glandular architecture composed of cells with subnuclear and supranuclear vacuoles, mimicking a developing fetal lung. In contrast, HG-FLACs contained both fetal lung-like (FLL) and CLA components. With regard to IHC markers, β-catenin exhibited a nuclear/cytoplasmic staining pattern in LG-FLACs but a membranous staining pattern in HG-FLACs. Furthermore, p53 was expressed diffusely and strongly in HG-FLACs, whereas in LG-FLACs, p53 staining was completely absent. Using next-generation sequencing targeting a 1021-gene panel, mutations of CTNNB1 and DICER1 were detected in all 4 LG-FLAC samples, and a novel mutation, MYCN P44L, was discovered in 2 LG-FLAC samples. DNA samples of the FLL and CLA components of HG-FLACs were separately extracted and sequenced. The FLL component harbored no CTNNB1, DICER1, or MYCN mutations; moreover, the FLL genetic profile largely overlapped with that of the CLA component. The morphologic, IHC, and genetic features of HG-FLAC indicate that it is a variant of CLA rather than a subset of FLAC. Thus, HG-FLAC should be treated differently from LG-FLAC.
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Affiliation(s)
- Yue Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Departments of Molecular Diagnostics
| | - Shao-yan Xi
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Pathology, Sun Yat-Sen University Cancer Center
| | - Juan-juan Yong
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People’s Republic of China
| | - Xiao-yan Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Departments of Molecular Diagnostics
| | - Xin-hua Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Departments of Molecular Diagnostics
| | - Fang Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
- Departments of Molecular Diagnostics
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8
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Kebudi R, Dural O, Bay SB, Gorgun O, Onder S, Bilgic B, Yilmaz I, Iribas A, Arndt CA, Harris AK, Field A, Schultz KAP, Hill DA. Childhood Rhabdomyosarcoma of the Female Genital Tract: Association with Pathogenic DICER1 Variation, Clinicopathological Features, and Outcomes. J Pediatr Adolesc Gynecol 2021; 34:449-453. [PMID: 33484847 DOI: 10.1016/j.jpag.2021.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 12/23/2020] [Accepted: 01/14/2021] [Indexed: 12/17/2022]
Abstract
STUDY OBJECTIVE Rhabdomyosarcomas (RMSs) of the female genital tract (FGT) have been recently shown to be associated with germline pathogenic variation in DICER1, which can underlie a tumor predisposition disorder. We sought to determine the incidence of a pathogenic variation in DICER1 in a cohort of RMSs of the FGT, as well as to evaluate the clinicopathological features and outcomes of the patients. DESIGN, SETTING, PARTICIPANTS, INTERVENTIONS, AND MAIN OUTCOME MEASURES: We retrospectively reviewed medical records of the patients diagnosed with RMS of the FGT between 1990 and 2019. Molecular genetic sequencing of the tumor to detect an RNase IIIb domain hot spot mutation in DICER1 samples was performed in 7 patients. Individuals with a missense mutation in the tumor were also screened for a loss of function germline mutation in DICER1. RESULTS Of 210 cases of pediatric RMS, 11 arose from the FGT. Molecular genetic sequencing of the tumor samples revealed a somatic missense mutation in the RNase IIIb domain of DICER1 in a total of 3 patients, 2 patients with embryonal RMS of the cervix/uterus, and 1 patient with ovarian embryonal RMS. As a result of genetic testing for the loss of function germline mutation in DICER1, a heterozygous pathogenic variant was also found in 2 of these patients. CONCLUSION Despite the limited number of patients, our findings suggest that it is important to be aware of the possible association between RMS of FGT and pathogenic germline DICER1 variants because the detection of this mutation in a patient or relatives can provide the opportunity for surveillance of related conditions that might improve long-term outcomes and survival.
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Affiliation(s)
- Rejin Kebudi
- Division of Pediatric Hematology-Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey.
| | - Ozlem Dural
- Department of Obstetrics and Gynecology, Istanbul University, School of Medicine, Istanbul, Turkey
| | - Sema Buyukkapu Bay
- Division of Pediatric Hematology-Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | - Omer Gorgun
- Division of Pediatric Hematology-Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | - Semen Onder
- Department of Pathology, Istanbul University, School of Medicine, Istanbul, Turkey
| | - Bilge Bilgic
- Department of Pathology, Istanbul University, School of Medicine, Istanbul, Turkey
| | - Ismail Yilmaz
- University of Health Sciences, Department of Pathology, Sultan Abdulhamid Han Training and Research Hospital, Istanbul, Turkey
| | - Ayca Iribas
- Radiation Oncology, Oncology Institute, Istanbul University, Istanbul, Turkey
| | - Carola A Arndt
- Department of Pediatric and Adolescent Medicine, Mayo Clinic and Foundation, Rochester, Minnesota
| | - Anne K Harris
- International Pleuropulmonary Blastoma/DICER1 Registry, Minneapolis, Minnesota; International Ovarian and Testicular Stromal Tumor (OTST) Registry, Minneapolis, Minnesota; Cancer and Blood Disorders, Children's Minnesota, Minneapolis, Minnesota
| | | | - Kris Ann P Schultz
- International Pleuropulmonary Blastoma/DICER1 Registry, Minneapolis, Minnesota; International Ovarian and Testicular Stromal Tumor (OTST) Registry, Minneapolis, Minnesota; Children's Minnesota, Minneapolis, Minnesota
| | - D Ashley Hill
- ResourcePath, Sterling, Virginia; Department of Pathology, Children's National Health System, Washington, DC; George Washington University School of Medicine and Health Sciences, Washington, DC
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9
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Apellaniz-Ruiz M, McCluggage WG, Foulkes WD. DICER1-associated embryonal rhabdomyosarcoma and adenosarcoma of the gynecologic tract: Pathology, molecular genetics, and indications for molecular testing. Genes Chromosomes Cancer 2020; 60:217-233. [PMID: 33135284 DOI: 10.1002/gcc.22913] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 10/21/2020] [Indexed: 12/21/2022] Open
Abstract
Gynecologic sarcomas are uncommon neoplasms, the majority occurring in the uterus. Due to the diverse nature of these, the description of "new" morphological types and the rarity of some of them, pathological diagnosis and treatment is often challenging. Finding genetic alterations specific to, and frequently occurring, in a certain type can aid in the diagnosis. DICER1 is a highly conserved ribonuclease crucial in the biogenesis of microRNAs and mutations in DICER1 (either somatic or germline) have been detected in a wide range of sarcomas including genitourinary embryonal rhabdomyosarcomas (ERMS) and adenosarcomas. Importantly, DICER1-associated sarcomas share morphological features irrespective of the site of origin such that the pathologist can strongly suspect a DICER1 association. A review of the literature shows that almost all gynecologic ERMS reported (outside of the vagina) harbor DICER1 alterations, while approximately 20% of adenosarcomas also do so. These two tumor types exhibit significant morphological overlap and DICER1 tumor testing may be helpful in distinguishing between them, because a negative result makes ERMS unlikely. Given that germline pathogenic DICER1 variants are frequent in uterine (corpus and cervix) ERMS and pathogenic germline variants in this gene cause a hereditary cancer predisposition syndrome (DICER1 syndrome), patients diagnosed with these neoplasms should be referred to medical genetic services. Cooperation between pathologists and geneticists is crucial and will help in improving the diagnosis and management of these uncommon sarcomas.
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Affiliation(s)
| | - W Glenn McCluggage
- Department of Pathology, Belfast Health and Social Care Trust, Belfast, UK
| | - William D Foulkes
- Department of Human Genetics, McGill University, Montréal, Québec, Canada
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10
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The Value of DICER1 Mutation Analysis in “Subtle” Diagnostically Challenging Embryonal Rhabdomyosarcomas of the Uterine Cervix. Int J Gynecol Pathol 2020; 40:435-440. [DOI: 10.1097/pgp.0000000000000718] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Significantly greater prevalence of DICER1 alterations in uterine embryonal rhabdomyosarcoma compared to adenosarcoma. Mod Pathol 2020; 33:1207-1219. [PMID: 31900434 DOI: 10.1038/s41379-019-0436-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 11/06/2019] [Accepted: 11/25/2019] [Indexed: 01/25/2023]
Abstract
Embryonal rhabdomyosarcomas (ERMS) account for 2-3% of cancers in pediatric and adolescent populations. They are rarer in adults. We and others have reported that ERMS arising in the uterine cervix may harbor mutations in the gene encoding the microRNA biogenesis enzyme, DICER1, but a large series of cases has not been published. In the uterus, distinguishing ERMS from adenosarcoma can be very challenging, even for expert pathologists, and DICER1 alterations have been identified in a variable subset of uterine adenosarcomas. We hypothesized that DICER1 genetic testing may be useful in distinguishing between ERMS and adenosarcoma. We conducted a central pathology review-based study of 64 tumors initially thought to be uterine ERMS or adenosarcoma; 19 neoplasms had a consensus diagnosis of ERMS, 27 of adenosarcoma and for 18, no consensus diagnosis was reached. The median age at diagnosis was 30 years (range 2.5-69) for ERMS, 57.5 years (range 27-82) for adenosarcoma, and 65.5 years (range 32-86) for no consensus cases. In our series, the DICER1 mutation prevalence differed between the three groups: DICER1 alterations were present in 18/19 (95%) ERMS, 7/27 (26%) adenosarcomas (p < 0.001), and 4/18 (22%) no consensus cases. A germline alteration was present in 6/12 ERMS patients tested versus 0/6 adenosarcoma patients. Thus, although DICER1 mutations are near ubiquitous in uterine ERMS and are significantly less common in uterine adenosarcoma, DICER1 testing is only of value in distinguishing between the two neoplasms when a DICER1 mutation is absent, as this is helpful in excluding ERMS. On review of the clinical and radiological features of the single DICER1 wild-type cervical ERMS, this was thought most likely to be of vaginal origin. Given the significant prevalence of DICER1 germline pathogenic variants in uterine ERMS, all patients with this diagnosis should be referred to a genetics service.
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12
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Warren M, Hiemenz MC, Schmidt R, Shows J, Cotter J, Toll S, Parham DM, Biegel JA, Mascarenhas L, Shah R. Expanding the spectrum of dicer1-associated sarcomas. Mod Pathol 2020; 33:164-174. [PMID: 31537896 PMCID: PMC7528621 DOI: 10.1038/s41379-019-0366-x] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/28/2022]
Abstract
DICER1 syndrome is a hereditary cancer predisposition syndrome caused by deleterious germline DICER1 mutations. Characteristic "hotspot" somatic mutations of DICER1 have been identified in DICER1-associated tumors. With the exception of genitourinary embryonal rhabdomyosarcoma and anaplastic sarcoma of the kidney, sarcomas are rarely reported in DICER1 syndrome. Herein, we report the clinical, histopathologic, and molecular findings of a germline DICER1-associated ovarian sarcoma in a 5-year-old female, a somatic DICER1-associated metastatic peritoneal sarcoma in a 16-year-old female, and a somatic DICER1-associated primary intracranial sarcoma in a 4-year-old male. A comprehensive review of the literature, including 83 DICER1-associated sarcomas, illustrates an unequivocal histologic pattern mimicking pleuropulmonary blastoma, regardless of the site of origin. The features include undifferentiated small round blue cells, poorly differentiated spindle cells, and large bizarre pleomorphic cells (anaplasia), often with rhabdomyoblastic and/or chondroid differentiation, and rare bone/osteoid formation. This unique heterogeneous histologic pattern should raise suspicion for pathogenic DICER1 mutation(s) warranting a detailed review of the family history and DICER1 mutation analysis. In addition to expanding the phenotypic spectrum of DICER1-associated conditions, identification of pathogenic DICER1 variants facilitates optimized genetic counseling, caregiver education and judicious imaging-based surveillance.
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Affiliation(s)
- Mikako Warren
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Matthew C. Hiemenz
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Ryan Schmidt
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jared Shows
- Department of Pathology, Long Beach Medical Center, Miller Children’s Hospital, Long Beach, CA, USA
| | - Jennifer Cotter
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Stephanie Toll
- Division of Hematology, Oncology and Blood and Marrow Transplantation, Children’s Center for Cancer and Blood Diseases, Children’s Hospital Los Angeles, Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - David M. Parham
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jaclyn A. Biegel
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Leo Mascarenhas
- Division of Hematology, Oncology and Blood and Marrow Transplantation, Children’s Center for Cancer and Blood Diseases, Children’s Hospital Los Angeles, Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Rachana Shah
- Division of Hematology, Oncology and Blood and Marrow Transplantation, Children’s Center for Cancer and Blood Diseases, Children’s Hospital Los Angeles, Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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13
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Guillerman RP, Foulkes WD, Priest JR. Imaging of DICER1 syndrome. Pediatr Radiol 2019; 49:1488-1505. [PMID: 31620849 DOI: 10.1007/s00247-019-04429-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 03/28/2019] [Accepted: 05/14/2019] [Indexed: 02/06/2023]
Abstract
DICER1 syndrome is a highly pleiotropic tumor predisposition syndrome that has been increasingly recognized in the last 10 years. Diseases in the syndrome result from mutations in both copies of the gene DICER1, a highly conserved gene that is critically implicated in micro-ribonucleic acid (miRNA) biogenesis and hence modulation of messenger RNAs. In general, susceptible individuals carry an inherited germline mutation that disables one copy of DICER1; within tumors, a very characteristic second mutation alters function of the other gene copy. About 20 hamartomatous, hyperplastic or neoplastic conditions comprise DICER1 syndrome. Most are not life-threatening, but some are aggressive malignancies. There are many unaffected carriers because penetrance is generally low; however, clinically occult thyroid nodules and lung cysts are frequent. Rare diseases of early childhood were the first recognized conditions in DICER1 syndrome, while other conditions affect adolescents and adults. The hallmarks of DICER1 syndrome are certain rare tumors including pleuropulmonary blastoma; cystic nephroma; ovarian Sertoli-Leydig cell tumor; sarcomas of the cervix, kidneys and cerebrum; pituitary blastoma; ciliary body medulloepithelioma; and nasal chondromesenchymal hamartoma. Radiologists are often the first practitioners to observe these diverse manifestations and play a primary role in recognizing DICER1 syndrome.
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Affiliation(s)
- R Paul Guillerman
- Department of Pediatric Radiology, Texas Children's Hospital, 6701 Fannin St., Suite 470, Houston, TX, 77030, USA.
| | - William D Foulkes
- Department of Human Genetics, McGill University, Lady Davis Institute, Segal Cancer Centre,, Jewish General Hospital,, Montreal, QC, Canada
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Two cases of primary supratentorial intracranial rhabdomyosarcoma with DICER1 mutation which may belong to a "spindle cell sarcoma with rhabdomyosarcoma-like feature, DICER1 mutant". Brain Tumor Pathol 2019; 36:174-182. [PMID: 31487013 DOI: 10.1007/s10014-019-00352-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/19/2019] [Indexed: 02/07/2023]
Abstract
Rhabdomyosarcoma is the most common soft-tissue sarcoma affecting children and adolescents. It is defined as a malignant neoplasm characterized by morphologic, immunohistochemical, ultrastructural, or molecular genetic evidence of primary skeletal muscle differentiation, usually in the absence of any other pattern of differentiation. Primary intracranial rhabdomyosarcoma (PIRMS) is an extremely rare neoplasm, with only 60 cases reported in the literature, and generally has poor prognosis with an overall survival of only 9.1 months. The DICER1 gene encodes an RNA endoribonuclease that plays a key role in gene expression regulation through the production of small RNAs. Herein, we report two cases of PIRMS with somatic DICER1 mutation showing morphological and immunohistochemical evidence of primary skeletal muscle differentiation; the two cases share common clinical features, including young age, supratentorial tumor, and onset of intratumoral bleeding. Although methylation profiling was not performed, both cases shared clinical and pathological characteristics in common with recently proposed methylation entity "spindle cell sarcoma with rhabdomyosarcoma-like features, DICER1 mutant (SCS-RMSlike-DICER1)''. Our cases provide further evidence of the link between primary intracranial sarcoma and DICER1 mutation which may form a distinct entity.
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Robertson JC, Jorcyk CL, Oxford JT. DICER1 Syndrome: DICER1 Mutations in Rare Cancers. Cancers (Basel) 2018; 10:cancers10050143. [PMID: 29762508 PMCID: PMC5977116 DOI: 10.3390/cancers10050143] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/13/2018] [Accepted: 05/14/2018] [Indexed: 12/20/2022] Open
Abstract
DICER1 syndrome is a rare genetic disorder that predisposes individuals to multiple cancer types. Through mutations of the gene encoding the endoribonuclease, Dicer, DICER1 syndrome disrupts the biogenesis and processing of miRNAs with subsequent disruption in control of gene expression. Since the first description of DICER1 syndrome, case reports have documented novel germline mutations of the DICER1 gene in patients with cancers as well as second site mutations that alter the function of the Dicer protein expressed. Here, we present a review of mutations in the DICER1 gene, the respective protein sequence changes, and clinical manifestations of DICER1 syndrome. Directions for future research are discussed.
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Affiliation(s)
- Jake C Robertson
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
| | - Cheryl L Jorcyk
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
- Biomolecular Research Center, Boise State University, Boise, ID 83725-1511, USA.
| | - Julia Thom Oxford
- Department of Biological Sciences, Boise State University, Boise, ID 83725-1515, USA.
- Biomolecular Research Center, Boise State University, Boise, ID 83725-1511, USA.
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Ring KL, Garcia C, Thomas MH, Modesitt SC. Current and future role of genetic screening in gynecologic malignancies. Am J Obstet Gynecol 2017; 217:512-521. [PMID: 28411145 DOI: 10.1016/j.ajog.2017.04.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 03/28/2017] [Accepted: 04/04/2017] [Indexed: 02/06/2023]
Abstract
The world of hereditary cancers has seen exponential growth in recent years. While hereditary breast and ovarian cancer and Lynch syndrome account for the majority of mutations encountered by gynecologists, newly identified deleterious genetic mutations continue to be unearthed with their associated risks of malignancies. However, these advances in genetic cancer predispositions then force practitioners and their patients to confront the uncertainties of these less commonly identified mutations and the fact that there is limited evidence to guide them in expected cancer risk and appropriate risk-reduction strategies. Given the speed of information, it is imperative to involve cancer genetics experts when counseling these patients. In addition, coordination of screening and care in conjunction with specialty high-risk clinics, if available, allows for patients to have centralized management for multiple cancer risks under the guidance of physicians with experience counseling these patients. The objective of this review is to present the current literature regarding genetic mutations associated with gynecologic malignancies as well to propose screening and risk-reduction options for these high-risk patients.
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17
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Abstract
It has been reported that germline DICER1 mutations correlate with a distinctive human disease syndrome. Many published studies within this field have been conducted based on rare cases. We systematically searched bibliographic databases, including PubMed, Embase, and COSMIC for articles which are related to diseases covered by DICER1 syndrome. The weighted summary of mutation frequencies among patients with pleuropulmonary blastoma (PPB), cystic nephroma (CN), and Sertoli-Leydig cell tumor (SLCT) were calculated. Forty-nine eligible articles were included. In total, 72 cases with multimorbidity of DICER1 syndrome were identified. More females (n=46, 64%) presented with multimorbidity than males (n=18, 25%) and the remaining 8 patients' sex were unknown. Nineteen of 72 patients with multimorbidity suffered from another disease that was not yet included in DICER1 syndrome, which would provide potential phenotypes of DICER1 syndrome. The germline DICER1 mutation frequencies in PPB, CN, and SLCT were 66.9%, 73.2%, and 57.1%, respectively. The somatic DICER1 mutation frequencies of PPB, CN, and SLCT were 92.4%, 87.9%, and 43.3%, respectively. Majority of patients with multimorbidity of DICER1 syndrome were mutation positive individuals so that multimorbidity may suggest the possible germline mutation of these patients and their relatives.
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18
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de Kock L, Rivera B, Revil T, Thorner P, Goudie C, Bouron-Dal Soglio D, Choong CS, Priest JR, van Diest PJ, Tanboon J, Wagner A, Ragoussis J, Choong PFM, Foulkes WD. Sequencing of DICER1 in sarcomas identifies biallelic somatic DICER1 mutations in an adult-onset embryonal rhabdomyosarcoma. Br J Cancer 2017; 116:1621-1626. [PMID: 28524158 PMCID: PMC5518865 DOI: 10.1038/bjc.2017.147] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 04/25/2017] [Accepted: 04/26/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Sarcomas are rare and heterogeneous cancers. We assessed the contribution of DICER1 mutations to sarcoma development. METHODS The coding region of DICER1 was sequenced in 67 sarcomas using a custom Fluidigm Access Array. The RNase III domains were Sanger sequenced in six additional sarcomas to identify hotspot DICER1 variants. RESULTS The median age of sarcoma diagnosis was 45.7 years (range: 3 months to 87.4 years). A recurrent embryonal rhabdomyosarcoma (ERMS) of the broad ligament, first diagnosed at age 23 years, harboured biallelic pathogenic somatic DICER1 variants (1 truncating and 1 RNase IIIb missense). We identified nine other DICER1 variants. One somatic variant (p.L1070V) identified in a pleomorphic sarcoma and one germline variant (c.2257-7A>G) may be pathogenic, but the others are considered to be benign. CONCLUSIONS We show that deleterious DICER1 mutations underlie the genetic basis of only a small fraction of sarcomas, in particular ERMS of the urogenital tract.
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Affiliation(s)
- Leanne de Kock
- Department of Human Genetics, McGill University, 1205 Dr. Penfield Avenue, Stewart Biology Building, Room N5/13, Montréal, QC H3A 1B1, Canada
- Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, 3755 Cote Sainte Catherine Road, Montréal, QC H3T 1E2, Canada
| | - Barbara Rivera
- Department of Human Genetics, McGill University, 1205 Dr. Penfield Avenue, Stewart Biology Building, Room N5/13, Montréal, QC H3A 1B1, Canada
- Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, 3755 Cote Sainte Catherine Road, Montréal, QC H3T 1E2, Canada
| | - Timothée Revil
- McGill University and Genome Quebec Innovation Centre, 740 Dr Penfield Avenue, Montréal, QC H3A 0G4, Canada
| | - Paul Thorner
- Division of Pathology, Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G 1X8, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King’s College Circle, Toronto, ON M5S 1A8, Canada
| | - Catherine Goudie
- Department of Paediatrics, McGill University, 1001 Décarie Boulevard, Montréal, QC H4A 3J1, Canada
| | | | - Catherine S Choong
- Princess Margaret Hospital for Children, Roberts Road, Subiaco, WA 6008, Australia
- The University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia
| | | | - Paul J van Diest
- Department of Pathology, University Medical Center Utrecht, Heidelberglaan 100, Utrecht 3584 CX, The Netherlands
| | - Jantima Tanboon
- Department of Pathology, Siriraj Hospital, Bangkok Noi, Bangkok 10700, Thailand
- Faculty of Medicine, Mahidol University, Bangkok Noi, Bangkok 10700, Thailand
| | - Anja Wagner
- Department of Clinical Genetics, Erasmus MC University Medical Center, Wytemaweg 80, Rotterdam 3015 CN, The Netherlands
| | - Jiannis Ragoussis
- McGill University and Genome Quebec Innovation Centre, 740 Dr Penfield Avenue, Montréal, QC H3A 0G4, Canada
| | - Peter FM Choong
- Department of Surgery, St. Vincent’s Hospital Melbourne, University of Melbourne, 41 Victoria Parade, Melbourne, VIC 3065, Australia
| | - William D Foulkes
- Department of Human Genetics, McGill University, 1205 Dr. Penfield Avenue, Stewart Biology Building, Room N5/13, Montréal, QC H3A 1B1, Canada
- Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, 3755 Cote Sainte Catherine Road, Montréal, QC H3T 1E2, Canada
- Department of Medical Genetics, Research Institute of the McGill University Health Centre, 1001 Décarie Boulevard, Montréal, QC H4A 3J1, Canada
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Scollon S, Anglin AK, Thomas M, Turner JT, Wolfe Schneider K. A Comprehensive Review of Pediatric Tumors and Associated Cancer Predisposition Syndromes. J Genet Couns 2017; 26:387-434. [PMID: 28357779 DOI: 10.1007/s10897-017-0077-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 01/30/2017] [Indexed: 12/11/2022]
Abstract
An understanding of the role of inherited cancer predisposition syndromes in pediatric tumor diagnoses continues to develop as more information is learned through the application of genomic technology. Identifying patients and their relatives at an increased risk for developing cancer is an important step in the care of this patient population. The purpose of this review is to highlight various tumor types that arise in the pediatric population and the cancer predisposition syndromes associated with those tumors. The review serves as a guide for recognizing genes and conditions to consider when a pediatric cancer referral presents to the genetics clinic.
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Affiliation(s)
- Sarah Scollon
- Department of Pediatrics, Baylor College of Medicine, Texas Children's Cancer Center, Texas Children's Hospital, 1102 Bates St, FC 1200, Houston, TX, 77030, USA.
| | | | | | - Joyce T Turner
- Department of Genetics and Metabolism, Children's National Medical Center, Washington, DC, USA
| | - Kami Wolfe Schneider
- Department of Pediatrics, University of Colorado, Center for Cancer and Blood Disorders, Children's Hospital Colorado, Aurora, CO, USA
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20
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Bracken CP, Scott HS, Goodall GJ. A network-biology perspective of microRNA function and dysfunction in cancer. Nat Rev Genet 2016; 17:719-732. [DOI: 10.1038/nrg.2016.134] [Citation(s) in RCA: 468] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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de Kock L, Bah I, Revil T, Bérubé P, Wu MK, Sabbaghian N, Priest JR, Ragoussis J, Foulkes WD. Deep Sequencing Reveals Spatially Distributed Distinct Hot Spot Mutations in DICER1-Related Multinodular Goiter. J Clin Endocrinol Metab 2016; 101:3637-3645. [PMID: 27459524 DOI: 10.1210/jc.2016-1328] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
CONTEXT Nontoxic multinodular goiter (MNG) occurs frequently, but its genetic etiology is not well established. Familial MNG and MNG occurring with ovarian Sertoli-Leydig cell tumor are associated with germline DICER1 mutations. We recently identified second somatic DICER1 ribonuclease (RNase) IIIb mutations in two MNGs. OBJECTIVE The objective of the study was to investigate the occurrence of somatic DICER1 mutations and mutational clonality in MNG. PATIENTS MNGs from 15 patients (10 with and five without germline DICER1 mutations) were selected based on tissue availability. DESIGN Core biopsies/scrapings (n = 70) were obtained, sampling areas of follicular hyperplasia, hyperplasia within colloid pools, unremarkable thyroid parenchyma, and areas of thyroid parenchyma, not classified. After capture with a Fluidigm access array, the coding sequence of DICER1 was deep sequenced using DNA from each core/scraping. RESULTS All germline DICER1-mutated cases were found to harbor at least one RNase III mutation. Specifically, we identified 12 individually distinct DICER1 RNase IIIb hot spot mutations in 32 of the follicular hyperplasia or hyperplasia within colloid pools cores/scrapings. These mutations are predicted to affect the metal-ion binding residues at positions p.Glu1705, p.Asp1709, p.Gly1809, p.Asp1810, and p.Glu1813. Somatic RNase IIIb mutations were identified in the 10 DICER1 germline mutated MNGs as follows: two cases contained one somatic mutation, five cases contained two mutations, and three cases contained three distinct somatic hot spot mutations. No RNase IIIb mutations were identified in the MNGs from individuals without germline DICER1 mutations. CONCLUSIONS This study demonstrates that nodules within MNG occurring in DICER1 syndrome are associated with spatially distributed somatic DICER1 RNase IIIb mutations.
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Affiliation(s)
- Leanne de Kock
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - Ismaël Bah
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - Timothée Revil
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - Pierre Bérubé
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - Mona K Wu
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - Nelly Sabbaghian
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - John R Priest
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - Jiannis Ragoussis
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
| | - William D Foulkes
- Departments of Human Genetics (L.d.K., M.K.W., W.D.F.), Pathology (I.B.), Oncology (W.D.F.), McGill University; Department of Medical Genetics, Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital (L.d.K., M.K.W., N.S., W.D.F.); Research Institute of the McGill University Health Centre (L.d.K., W.D.F.); McGill University and Genome Québec Innovation Centre (T.R., P.B., J.R.), Montréal, Québec, Canada; and (J.R.P.), Minneapolis, Minnesota, USA
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22
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Abstract
Patients with germline DICER1 mutations are at increased risk of developing a wide range of tumors, most of which are relatively rare in the general population. In the gynecologic tract, these include ovarian sex cord-stromal tumors, particularly Sertoli-Leydig cell tumor, and embryonal rhabdomyosarcoma of the cervix. In some cases, these are the sentinel neoplasms. DICER1-associated tumors may have distinctive morphologic appearances that may prompt the pathologist to consider an underlying tumor predisposition syndrome and therefore consideration of genetic evaluation in the patient and her family.
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MESH Headings
- DEAD-box RNA Helicases/genetics
- Diagnosis, Differential
- Female
- Genetic Predisposition to Disease
- Genital Neoplasms, Female/diagnosis
- Genital Neoplasms, Female/genetics
- Genital Neoplasms, Female/pathology
- Germ-Line Mutation
- Humans
- Neoplastic Syndromes, Hereditary/diagnosis
- Neoplastic Syndromes, Hereditary/genetics
- Neoplastic Syndromes, Hereditary/pathology
- Ovarian Neoplasms/diagnosis
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/pathology
- Prognosis
- Rhabdomyosarcoma, Embryonal/diagnosis
- Rhabdomyosarcoma, Embryonal/genetics
- Rhabdomyosarcoma, Embryonal/pathology
- Ribonuclease III/genetics
- Sertoli-Leydig Cell Tumor/diagnosis
- Sertoli-Leydig Cell Tumor/genetics
- Sertoli-Leydig Cell Tumor/pathology
- Sex Cord-Gonadal Stromal Tumors/diagnosis
- Sex Cord-Gonadal Stromal Tumors/genetics
- Sex Cord-Gonadal Stromal Tumors/pathology
- Uterine Cervical Neoplasms/diagnosis
- Uterine Cervical Neoplasms/genetics
- Uterine Cervical Neoplasms/pathology
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Affiliation(s)
- Colin J R Stewart
- Department of Histopathology, King Edward Memorial Hospital, School for Women's and Infants' Health, University of Western Australia, Subiaco, Perth, Western Australia 6008, Australia.
| | - Adrian Charles
- Department of Anatomical Pathology, Sidra Medical and Research Center, PO Box 26999, Doha, Qatar
| | - William D Foulkes
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada; Department of Oncology, McGill University, Montreal, Quebec, Canada; Department of Medical Genetics, Jewish General Hospital, McGill University Health Centre, Montreal, Quebec, Canada; Cancer Genetics Laboratory, Lady Davis Institute, Montreal, Quebec H3T 1E2, Canada
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23
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Faure A, Atkinson J, Bouty A, O'Brien M, Levard G, Hutson J, Heloury Y. DICER1 pleuropulmonary blastoma familial tumour predisposition syndrome: What the paediatric urologist needs to know. J Pediatr Urol 2016; 12:5-10. [PMID: 26454454 DOI: 10.1016/j.jpurol.2015.08.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 08/22/2015] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Germline-inactivating DICER1 mutations are responsible of a familial tumour susceptibility syndrome with an increased risk of tumours, mainly pleuropulmonary blastoma (PPB). DICER1 mutations also cause a range of other tumours, some of them in urogenital organs (cystic nephroma [CN], ovarian sex cord-stromal tumours, bladder and cervix embryonal rhabdomyosarcoma [ERMS]). OBJECTIVE The aim was to clarify the range of urogenital phenotypes associated with DICER1 mutations and to give practical course of action to paediatric urologist that are exposed to DICER1-related conditions. STUDY DESIGN A literature review was performed. Pertinent papers focused on urogenital diseases associated with DICER1 mutations were reviewed. RESULTS Seventy per cent of CN have a DICER1 germline mutation. The majority of them (80%) have PPB. Like PPB, CN could undergo a malignant progression to a primitive sarcoma. Some rare cases of Wilms tumours were reported. Regarding gonadal manifestations, sex-cord stromal neoplasia of the ovary, especially Sertoli-Leydig cell tumour (SLCT), is the most frequent tumour associated with DICER1 germline mutation. Germline DICER1 mutations also predispose to uterine cervix and bladder ERMS. DISCUSSION The presence of unusual tumours suggesting DICER1 mutations may alert clinicians. The first step is to obtain a complete familial history. The variable clinical presentation and the modest penetrance raise concerns about the appropriateness of genetic testing to patients and their relatives. The education of DICER1 mutations carriers about tumour-related symptoms is consensual. In the first 5 years of life, a yearly chest X-ray and abdominal ultrasound are recommended. CONCLUSION The presence of a CN, ovarian SLCT or urogenital ERMS in a child should alert the clinician to the possibility of DICER1 mutation and the associated risk of PPB. Individuals with one of the typical DICER1 conditions should be offered DICER1 analysis. Despite the low penetrance, a genetic counselling and testing should be offered to the family of the affected child.
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Affiliation(s)
- Alice Faure
- Royal Children's Hospital, Department of Paediatric Urology, Melbourne, Australia.
| | - John Atkinson
- Royal Children's Hospital, Department of Paediatric Urology, Melbourne, Australia
| | - Aurore Bouty
- Royal Children's Hospital, Department of Paediatric Urology, Melbourne, Australia
| | - Mike O'Brien
- Royal Children's Hospital, Department of Paediatric Urology, Melbourne, Australia
| | - Guillaume Levard
- Paediatric Surgery Department, University Hospital, Poitiers, France
| | - John Hutson
- Royal Children's Hospital, Department of Paediatric Urology, Melbourne, Australia; FD Stephens Surgical Research Group, Murdoch Children's Research Institute, Melbourne, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Yves Heloury
- Royal Children's Hospital, Department of Paediatric Urology, Melbourne, Australia
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25
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Abstract
MicroRNAs (miRNAs) are integral to the gene regulatory network. A single miRNA is capable of controlling the expression of hundreds of protein coding genes and modulate a wide spectrum of biological functions, such as proliferation, differentiation, stress responses, DNA repair, cell adhesion, motility, inflammation, cell survival, senescence and apoptosis, all of which are fundamental to tumorigenesis. Overexpression, genetic amplification, and gain-of-function mutation of oncogenic miRNAs ("onco-miRs") as well as genetic deletion and loss-of-function mutation of tumor suppressor miRNAs ("suppressor-miRs") are linked to human cancer. In addition to the dysregulation of a specific onco-miR or suppressor-miRs, changes in global miRNA levels resulting from a defective miRNA biogenesis pathway play a role in tumorigenesis. The function of individual onco-miRs and suppressor-miRs and their target genes in cancer has been described in many different articles elsewhere. In this review, we primarily focus on the recent development regarding the dysregulation of the miRNA biogenesis pathway and its contribution to cancer.
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Affiliation(s)
- Akiko Hata
- a Cardiovascular Research Institute, University of California , San Francisco , CA , USA
| | - Risa Kashima
- a Cardiovascular Research Institute, University of California , San Francisco , CA , USA
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26
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Crucis A, Richer W, Brugières L, Bergeron C, Marie-Cardine A, Stephan JL, Girard P, Corradini N, Munzer M, Lacour B, Minard-Colin V, Sarnacki S, Ranchere-Vince D, Orbach D, Bourdeaut F. Rhabdomyosarcomas in children with neurofibromatosis type I: A national historical cohort. Pediatr Blood Cancer 2015; 62:1733-8. [PMID: 25893277 DOI: 10.1002/pbc.25556] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 03/20/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Rhabdomyosarcoma (RMS) occasionally occurs in a context of a predisposition syndrome. The most common predisposition syndromes include germline TP53 mutations and constitutive alterations in RAS pathway activation, such as Costello syndrome, Noonan syndrome and neurofibromatosis type 1. We report a national retrospective series of 16 RMS occurring in neurofibromatosis type 1 (NF1) patients during childhood, within a 20-year period. RESULTS The mean age at diagnosis of the cancer was 2.5 years. All were embryonal subtype. Most tumours developed in the pelvis. One was metastatic. Chemotherapy and radiotherapy were normally scheduled without any specific toxicity. The 5-year event-free survival and overall survival were 67% and 87%, respectively. Long-term sequel related to chemotherapy consisted in two chronic tubulopathies, hence not obviously different from non-NF1 patients. No second cancer was reported so far with a median follow-up of 9.7 years. The genomic analysis performed on six samples revealed the abnormalities commonly observed in sporadic RMS: gain of chromosome 2 (5/6), 8 (6/6) and chromosome 11p loss of heterozygosity (5/6). Interestingly, we identified small deletions in tumour suppressor genes that may synergize with NF1 inactivation. CONCLUSIONS Patients with neurofibromatosis are prone to develop embryonal-type RMS that require the same treatment as sporadic cases.
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Affiliation(s)
- Anne Crucis
- Hopital Necker Enfants-Malades, Service de Reanimation pédiatrique, Paris, France
| | - Wilfrid Richer
- INSERMU830, Laboratoire de génétique et biologie des cancers, Institut Curie, Paris, France.,SIRIC, Recherche Translationnelle en Oncologie Pediatrique, Institut Curie, Paris, France
| | - Laurence Brugières
- Département d'Oncologie de l'Enfant et l'Adolescent, Institut Gustave Roussy, Villejuif, France
| | | | | | - Jean-Louis Stephan
- CHU de Saint-Etienne, Service d'hémato-oncologie pédiatrique, Saint-Etienne, France.,Universite Saint-Etienne, Saint-Etienne, France
| | - Pauline Girard
- CHU de Grenoble, Service d'hémato-oncologie pédiatrique, Grenoble, France
| | - Nadege Corradini
- CHU d'Amiens, Service d'hémato-oncologie pédiatrique, Amiens, France
| | - Martine Munzer
- CHU de Nantes, Service d'hémato-oncologie pédiatrique, Nantes, France
| | - Brigitte Lacour
- Registre national des tumeurs solides de l'enfant, CESP INSERM, Vandoeuvre-les-Nancy, France
| | - Veronique Minard-Colin
- Département d'Oncologie de l'Enfant et l'Adolescent, Institut Gustave Roussy, Villejuif, France
| | - Sabine Sarnacki
- Université Paris Rene Descartes, Paris, France.,Hopital Necker Enfants-Malades, Service de chirurgie infantile, Paris, France
| | | | - Daniel Orbach
- INSERMU830, Laboratoire de génétique et biologie des cancers, Institut Curie, Paris, France
| | - Franck Bourdeaut
- INSERMU830, Laboratoire de génétique et biologie des cancers, Institut Curie, Paris, France.,SIRIC, Recherche Translationnelle en Oncologie Pediatrique, Institut Curie, Paris, France.,Institut Curie, Departement d'oncologie pédiatrique adolescent jeune adulte, Paris, France
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27
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Chen J, Wang Y, McMonechy MK, Anglesio MS, Yang W, Senz J, Maines-Bandiera S, Rosner J, Trigo-Gonzalez G, Grace Cheng SW, Kim J, Matzuk MM, Morin GB, Huntsman DG. Recurrent DICER1 hotspot mutations in endometrial tumours and their impact on microRNA biogenesis. J Pathol 2015; 237:215-25. [PMID: 26033159 DOI: 10.1002/path.4569] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 03/15/2015] [Accepted: 05/22/2015] [Indexed: 12/18/2022]
Abstract
DICER1 plays a critical role in microRNA (miRNA) biogenesis. Recurrent somatic 'hotspot' mutations at the four metal-binding sites within the RNase IIIb domain of DICER1 were identified in ovarian sex cord-stromal tumours and have since been described in other paediatric tumours. In this study, we screened the RNase IIIb domain of DICER1 in 290 endometrial tumours and identified six cases with hotspot mutations, including two cases affected by an atypical G1809R mutation directly adjacent to a metal-binding site. Using Illumina and Sanger targeted resequencing, we observed and validated biallelic DICER1 mutations in several cases with hotspot mutations. Through in vitro DICER1 cleavage assays, small RNA deep sequencing and real-time PCR, we demonstrated that mutations adding a positively charged side chain to residue 1809 have similar detrimental effects on 5p miRNA production to mutations at the metal-binding sites. As expected, 5p miRNAs were globally reduced in tumours and cell lines with hotspot mutations. Pathway analysis of gene expression profiles indicated that genes de-repressed due to loss of 5p miRNAs are strongly associated with pathways regulating the cell cycle. Using a Dicer1-null mouse cell line model, we found that expression of DICER1 hotspot mutants promoted cell proliferation, whereas wild-type (WT) DICER1 inhibited cell proliferation. Furthermore, targets of let-7 family miRNAs are enriched among the up-regulated genes, suggesting that loss of let-7 may be impacting downstream pathways. Our results reveal that DICER1 hotspot mutations are implicated in common malignancies and may constitute a unique oncogenic pathway.
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Affiliation(s)
- Jiamin Chen
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Center for Translational and Applied Genomics, BC Cancer Agency, Vancouver, BC, Canada
| | - Yemin Wang
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Center for Translational and Applied Genomics, BC Cancer Agency, Vancouver, BC, Canada
| | - Melissa K McMonechy
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Center for Translational and Applied Genomics, BC Cancer Agency, Vancouver, BC, Canada
| | - Michael S Anglesio
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Winnie Yang
- Center for Translational and Applied Genomics, BC Cancer Agency, Vancouver, BC, Canada
| | - Janine Senz
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Sarah Maines-Bandiera
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jamie Rosner
- Department of Molecular Oncology, BC Cancer Agency, Vancouver, BC, Canada
| | | | - S W Grace Cheng
- Michael Smith Genome Sciences Centre, BC Cancer Agency, Vancouver, BC, Canada
| | - Jaeyeon Kim
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Martin M Matzuk
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Gregg B Morin
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada.,Michael Smith Genome Sciences Centre, BC Cancer Agency, Vancouver, BC, Canada
| | - David G Huntsman
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada.,Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada.,Center for Translational and Applied Genomics, BC Cancer Agency, Vancouver, BC, Canada
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28
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Kurzynska-Kokorniak A, Koralewska N, Pokornowska M, Urbanowicz A, Tworak A, Mickiewicz A, Figlerowicz M. The many faces of Dicer: the complexity of the mechanisms regulating Dicer gene expression and enzyme activities. Nucleic Acids Res 2015; 43:4365-80. [PMID: 25883138 PMCID: PMC4482082 DOI: 10.1093/nar/gkv328] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 03/31/2015] [Indexed: 12/14/2022] Open
Abstract
There is increasing evidence indicating that the production of small regulatory RNAs is not the only process in which ribonuclease Dicer can participate. For example, it has been demonstrated that this enzyme is also involved in chromatin structure remodelling, inflammation and apoptotic DNA degradation. Moreover, it has become increasingly clear that cellular transcript and protein levels of Dicer must be strictly controlled because even small changes in their accumulation can initiate various pathological processes, including carcinogenesis. Accordingly, in recent years, a number of studies have been performed to identify the factors regulating Dicer gene expression and protein activity. As a result, a large amount of complex and often contradictory data has been generated. None of these data have been subjected to an exhaustive review or critical discussion. This review attempts to fill this gap by summarizing the current knowledge of factors that regulate Dicer gene transcription, primary transcript processing, mRNA translation and enzyme activity. Because of the high complexity of this topic, this review mainly concentrates on human Dicer. This review also focuses on an additional regulatory layer of Dicer activity involving the interactions of protein and RNA factors with Dicer substrates.
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Affiliation(s)
| | - Natalia Koralewska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland
| | - Maria Pokornowska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland
| | - Anna Urbanowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland
| | - Aleksander Tworak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland
| | - Agnieszka Mickiewicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland
| | - Marek Figlerowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan 61-704, Poland Institute of Computing Science, Poznan University of Technology, Poznan 60-965, Poland
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29
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30
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de Kock L, Druker H, Weber E, Hamel N, Traubici J, Malkin D, Arseneau J, Stewart CJR, Bouron-Dal Soglio D, Priest JR, Foulkes WD. Ovarian embryonal rhabdomyosarcoma is a rare manifestation of the DICER1 syndrome. Hum Pathol 2015; 46:917-22. [PMID: 25836323 DOI: 10.1016/j.humpath.2015.02.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 01/30/2015] [Accepted: 02/09/2015] [Indexed: 11/19/2022]
Abstract
Embryonal rhabdomyosarcoma (ERMS), a soft tissue sarcoma, is one of the most common pediatric cancers. Certain ERMSs are associated with the DICER1 syndrome, a tumor predisposition syndrome caused by germ-line DICER1 mutations. Characteristic somatic mutations have also been identified in DICER1-associated tumor types. These "hotspot" mutations affect the catalytic activity of the DICER1 ribonuclease IIIb domain. Primary ovarian ERMS (oERMS) is extremely rare. We present a case of a 6-year-old girl with an oERMS harboring 2 DICER1 mutations. The girl also exhibited other DICER1 phenotypes: cystic nephroma (CN) and multinodular goiter. Somatic investigations of the CN identified a hotspot DICER1 mutation different from that in the oERMS. Significantly, the CN presented at 12 years of age, which is much older than the previously reported age range of susceptibility. This report documents the occurrence of DICER1 mutations in a case of oERMS, expanding the spectrum of DICER1-associated tumors.
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Affiliation(s)
- Leanne de Kock
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada H3A 0G4; Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, Montreal, Quebec, Canada H3T 1E2
| | - Harriet Druker
- Division of Hematology/Oncology, The Hospital for Sick Children, Department of Molecular and Medical Genetics, The University of Toronto, Toronto, Ontario, Canada M5G 1X8
| | - Evan Weber
- Department of Medical Genetics, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada H3H 2R9
| | - Nancy Hamel
- Department of Medical Genetics, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada H3H 2R9
| | - Jeffrey Traubici
- Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, Ontario, Canada M5G 1X8
| | - David Malkin
- Division of Hematology/Oncology, The Hospital for Sick Children, Departments of Pediatrics Medical Biophysics, The University of Toronto, Toronto, Ontario, Canada M5G 1X8
| | - Jocelyne Arseneau
- Department of Pathology, McGill University, Montreal, Quebec, Canada H3A 2B4
| | - Colin J R Stewart
- School for Women's and Infants' Health, University of Western Australia, Perth, Western Australia, Australia WA 6008
| | - Dorothée Bouron-Dal Soglio
- Department of Pathology, CHU-Sainte Justine and University of Montreal, Montréal, Quebec, Canada H3T 1C5
| | | | - William D Foulkes
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada H3A 0G4; Lady Davis Institute, Segal Cancer Centre, Jewish General Hospital, Montreal, Quebec, Canada H3T 1E2; Department of Medical Genetics, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada H3H 2R9; Program in Cancer Genetics, Department of Oncology and Human Genetics, McGill University, Montreal, Quebec, Canada H2W 1S6.
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31
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Wu Y, Chen D, Li Y, Bian L, Ma T, Xie M. DICER1 mutations in a patient with an ovarian Sertoli-Leydig tumor, well-differentiated fetal adenocarcinoma of the lung, and familial multinodular goiter. Eur J Med Genet 2014; 57:621-5. [DOI: 10.1016/j.ejmg.2014.09.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 09/21/2014] [Indexed: 11/28/2022]
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32
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de Kock L, Sabbaghian N, Druker H, Weber E, Hamel N, Miller S, Choong CS, Gottardo NG, Kees UR, Rednam SP, van Hest LP, Jongmans MC, Jhangiani S, Lupski JR, Zacharin M, Bouron-Dal Soglio D, Huang A, Priest JR, Perry A, Mueller S, Albrecht S, Malkin D, Grundy RG, Foulkes WD. Germ-line and somatic DICER1 mutations in pineoblastoma. Acta Neuropathol 2014; 128:583-95. [PMID: 25022261 DOI: 10.1007/s00401-014-1318-7] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 06/26/2014] [Accepted: 06/28/2014] [Indexed: 11/24/2022]
Abstract
Germ-line RB-1 mutations predispose to pineoblastoma (PinB), but other predisposing genetic factors are not well established. We recently identified a germ-line DICER1 mutation in a child with a PinB. This was accompanied by loss of heterozygosity (LOH) of the wild-type allele within the tumour. We set out to establish the prevalence of DICER1 mutations in an opportunistically ascertained series of PinBs. Twenty-one PinB cases were studied: Eighteen cases had not undergone previous testing for DICER1 mutations; three patients were known carriers of germ-line DICER1 mutations. The eighteen PinBs were sequenced by Sanger and/or Fluidigm-based next-generation sequencing to identify DICER1 mutations in blood gDNA and/or tumour gDNA. Testing for somatic DICER1 mutations was also conducted on one case with a known germ-line DICER1 mutation. From the eighteen PinBs, we identified four deleterious DICER1 mutations, three of which were germ line in origin, and one for which a germ line versus somatic origin could not be determined; in all four, the second allele was also inactivated leading to complete loss of DICER1 protein. No somatic DICER1 RNase IIIb mutations were identified. One PinB arising in a germ-line DICER1 mutation carrier was found to have LOH. This study suggests that germ-line DICER1 mutations make a clinically significant contribution to PinB, establishing DICER1 as an important susceptibility gene for PinB and demonstrates PinB to be a manifestation of a germ-line DICER1 mutation. The means by which the second allele is inactivated may differ from other DICER1-related tumours.
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Affiliation(s)
- Leanne de Kock
- Department of Human Genetics, McGill University, Montreal, QC, Canada
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