1
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Bakhuizen JJ, Postema FAM, van Rijn RR, van Schuppen J, Duijkers FAM, van Noesel CJM, Hennekam RC, Jongmans MCJ, Savci-Heijink CD, Smetsers SE, Terheggen-Lagro SWJ, Hopman SMJ, Oomen MWN, Merks JHM. No Pathogenic DICER1 Gene Variants in a Cohort Study of 28 Children With Congenital Pulmonary Airway Malformation. J Pediatr Surg 2024; 59:459-463. [PMID: 37989646 DOI: 10.1016/j.jpedsurg.2023.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/22/2023] [Accepted: 10/07/2023] [Indexed: 11/23/2023]
Abstract
BACKGROUND Distinguishing congenital pulmonary airway malformations (CPAMs) from pleuropulmonary blastoma (PPB) can be challenging. Previously diagnosed patients with CPAM may have been misdiagnosed and we may have missed DICER1-associated PPBs, a diagnosis with important clinical implications for patients and their families. To gain insight in potential misdiagnoses, we systematically assessed somatic DICER1 gene mutation status in an unselected, retrospective cohort of patients with a CPAM diagnosis. METHODS In the Amsterdam University Medical Center (the Netherlands), it has been standard policy to resect CPAM lesions. We included all consecutive cases of children (age 0-18 years) with a diagnosis of CPAM between 2007 and 2017 at this center. Clinical and radiographic features were reviewed, and DICER1 gene sequencing was performed on DNA retrieved from CPAM tissue samples. RESULTS Twenty-eight patients with a surgically removed CPAM were included. CPAM type 1 and type 2 were the most common subtypes (n = 12 and n = 13). For 21 patients a chest CT scan was available for reassessment by two pediatric radiologists. In 9 patients (9/21, 43%) the CPAM subtype scored by the radiologists did not correspond with the subtype given at pathology assessment. No pathogenic mutations and no copy number variations of the DICER1 gene were found in the DNA extracted from CPAM tissue (0/28). CONCLUSIONS Our findings suggest that the initial CPAM diagnoses were correct. These findings should be validated through larger studies to draw conclusions regarding whether systematic DICER1 genetic testing is required in children with a pathological confirmed diagnosis of CPAM or not. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Jette J Bakhuizen
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Floor A M Postema
- Department of Pediatrics, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Rick R van Rijn
- Department of Radiology and Nuclear Medicine, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Joost van Schuppen
- Department of Radiology and Nuclear Medicine, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Floor A M Duijkers
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Carel J M van Noesel
- Department of Pathology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Raoul C Hennekam
- Department of Pediatrics, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Marjolijn C J Jongmans
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - C Dilara Savci-Heijink
- Department of Pathology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | | | - Suzanne W J Terheggen-Lagro
- Department of Pediatric Pulmonology and Allergy, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Saskia M J Hopman
- Department of Genetics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Matthijs W N Oomen
- Department of Pediatric Surgery, Emma Children's Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Johannes H M Merks
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Division of Imaging and Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
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2
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Venger K, Elbracht M, Carlens J, Deutz P, Zeppernick F, Lassay L, Kratz C, Zenker M, Kim J, Stewart DR, Wieland I, Schultz KAP, Schwerk N, Kurth I, Kontny U. Unusual phenotypes in patients with a pathogenic germline variant in DICER1. Fam Cancer 2023; 22:475-480. [PMID: 34331184 PMCID: PMC9743360 DOI: 10.1007/s10689-021-00271-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 07/20/2021] [Indexed: 02/02/2023]
Abstract
Pathogenic germline DICER1 variants are associated with pleuropulmonary blastoma, multinodular goiter, embryonal rhabdomyosarcoma and other tumour types, while mosaic missense DICER1 variants in the RNase IIIb domain are linked to cause GLOW (global developmental delay, lung cysts, overgrowth, and Wilms' tumor) syndrome. Here, we report four families with germline DICER1 pathogenic variants in which one member in each family had a more complex phenotype, including skeletal findings, facial dysmorphism and developmental abnormalities. The developmental features occur with a variable expressivity and incomplete penetrance as also described for the neoplastic and dysplastic lesions associated with DICER1 variants. Whole exome sequencing (WES) was performed on all four cases and revealed no further pathogenic or likely pathogenic dominant, homozygous or compound heterozygous variants in three of them. Notably, a frameshift variant in ARID1B was detected in one patient explaining part of her phenotype. This series of patients shows that pathogenic DICER1 variants may be associated with a broader phenotypic spectrum than initially assumed, including predisposition to different tumours, skeletal findings, dysmorphism and developmental abnormalities, but genetic work up in syndromic patients should be comprehensive in order not to miss additional underlying /modifying causes.
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Affiliation(s)
- Kateryna Venger
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Department of Pediatrics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Miriam Elbracht
- Institute of Human Genetics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Julia Carlens
- Clinic for Pediatric Pulmonology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Peter Deutz
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Department of Pediatrics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Felix Zeppernick
- Department of Gynecology and Obstetrics, Medical Faculty, RWTH Aachen University, Aachen, Germany
- Department of Obstetrics and Gynecology, University Hospital Giessen, Giessen, Germany
| | - Lisa Lassay
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Department of Pediatrics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Christian Kratz
- Clinic for Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
| | - Martin Zenker
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Jung Kim
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD, USA
| | - Douglas R Stewart
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD, USA
| | - Ilse Wieland
- Institute of Human Genetics, University Hospital Magdeburg, Magdeburg, Germany
| | - Kris Ann P Schultz
- International PPB/DICER1 Registry, Minneapolis, MN, USA
- Cancer and Blood Disorders, Children's Minnesota, Minneapolis, MN, USA
| | - Nicolaus Schwerk
- Clinic for Pediatric Pulmonology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Ingo Kurth
- Institute of Human Genetics, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Udo Kontny
- Division of Pediatric Hematology, Oncology and Stem Cell Transplantation, Department of Pediatrics, Medical Faculty, RWTH Aachen University, Aachen, Germany.
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3
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Kondkar AA, Azad TA, Sultan T, Osman EA, Almobarak FA, Lobo GP, Al-Obeidan SA. The 3' UTR polymorphisms rs3742330 in DICER1 and rs10719 in DROSHA genes are not associated with primary open-angle and angle-closure glaucoma: As case-control study. PLoS One 2023; 18:e0284852. [PMID: 37099569 PMCID: PMC10132650 DOI: 10.1371/journal.pone.0284852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 04/10/2023] [Indexed: 04/27/2023] Open
Abstract
AIM In a retrospective and exploratory case-control study, we examined the genetic association of two common polymorphisms in the 3' untranslated region (UTR) of DICER1 (rs3742330) and DROSHA (rs10719) genes in primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG), and its related clinical phenotypes in a Saudi cohort. METHODS DNA genotyping was performed using TaqMan real-time PCR assays in 500 participants, including 152 POAG, 102 PACG, and 246 non-glaucomatous controls. Statistical analyses were performed to examine the association(s). RESULTS Allele and genotype frequency of rs3742330 and rs10719 did not vary significantly in POAG and PACG compared to controls. No significant deviation was observed from Hardy-Weinberg Equilibrium (p > 0.05). Gender stratification revealed no significant allelic/genotype association with glaucoma types. Also, these polymorphisms showed no significant genotype effect on clinical markers such as intraocular pressure, cup/disc ratio, and the number of antiglaucoma medications. Logistic regression showed no effect of age, sex, rs3742330, and rs10719 genotypes on the risk of disease outcome. We also examined a combined allelic effect of rs3742330 (A>G) and rs10719 (A>G). However, none of the allelic combinations significantly affected POAG and PACG. CONCLUSIONS The 3' UTR polymorphisms rs3742330 and rs10719 of DICER1 and DROSHA genes are not associated with POAG and PACG or its related glaucoma indices in this Middle-Eastern cohort of Saudi Arab ethnicity. However, there is a need to validate the results on a broader population and other ethnicities.
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Affiliation(s)
- Altaf A. Kondkar
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Glaucoma Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Taif A. Azad
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Tahira Sultan
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Essam A. Osman
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Faisal A. Almobarak
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Glaucoma Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Glenn P. Lobo
- Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, United States of America
| | - Saleh A. Al-Obeidan
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Glaucoma Research Chair in Ophthalmology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Juhlin CC. On the Chopping Block: Overview of DICER1 Mutations in Endocrine and Neuroendocrine Neoplasms. Surg Pathol Clin 2023; 16:107-118. [PMID: 36739158 DOI: 10.1016/j.path.2022.09.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Mutational inactivation of the DICER1 gene causes aberrant micro-RNA maturation, which in turn may have consequences for the posttranscriptional regulation of gene expression, thereby contributing to tumor formation in various organs. Germline DICER1 mutations cause DICER1 syndrome, a pleiotropic condition with an increased risk of various neoplastic conditions in the pleura, ovaries, thyroid, pituitary, pineal gland, and mesenchymal tissues. Somatic DICER1 mutations are also frequently observed in a wide variety of solid tumors, thereby highlighting the importance of this gene in tumor development. In this review, the importance of DICER1 inactivation in endocrine tumors is discussed.
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Pike S, Iyengar R, Peng CC, Chevez-Barrios P, Brown B, Shah R, Biegel J, Yellapantula V, Nagiel A, Reiser BJ, Xu L, Berry JL. Malignant teratoid intraocular ciliary body medulloepithelioma in a 5-year-old male with corresponding somatic copy number alteration profile of aqueous humor cell-free DNA. Ophthalmic Genet 2022; 43:855-861. [PMID: 36314385 PMCID: PMC9877122 DOI: 10.1080/13816810.2022.2138457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Intraocular, ciliary body, medulloepithelioma (CBME) is a rare tumor of the nonpigmented ciliary body epithelium, typically presenting in childhood. We describe a case of CBME. MATERIALS AND METHODS Ocular examination and imaging guided diagnostic and treatment decisions. Aqueous humor (AH) liquid biopsy was collected from the affected eye at eventual enucleation. Whole genome sequencing (WGS) was employed to determine somatic copy number alterations (SCNA) in AH cell-free DNA (cfDNA). Tumor sample was analyzed using various assays to evaluate for oncogenic mutations and SCNAs. Histopathology determined diagnosis. RESULTS A 5-year-old male with glaucoma and cataract in the left eye (OS) experienced worsening left eye pain and redness. There was no light perception OS and the eye was hypotonus. Anterior segment exam showed complete cataract and rubeosis iridis. Ocular B-scan ultrasound OS revealed an intraocular lesion with calcifications and retinal detachment. Orbital MRI suggested left globe hypercellularity. An infiltrative lesion involving the ciliary body was seen in the left eye on examination under anesthesia. Left eye enucleation was performed in the setting of pain, blindness, and tumor, with anterior chamber paracentesis for AH liquid biopsy collection. SCNA profile of AH cfDNA demonstrated loss of copy of chromosomes 4, 6, and 9. Tumor was negative for clinically significant mutations or SCNAs. Histopathology diagnosed malignant teratoid CBME. CONCLUSIONS We present a case of CBME and include the unique SCNA profile of AH cfDNA from the enucleated eye. This case suggests utility of AH liquid biopsy in distinguishing between differential diagnoses for intraocular mass lesions.
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Affiliation(s)
- Sarah Pike
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Rahul Iyengar
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Chen-Ching Peng
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | | | - Brianne Brown
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA
| | - Rachana Shah
- Cancer and Blood Disease Institute Retinoblastoma Program, Children’s Hospital Los Angeles, Los Angeles, CA, USA
| | - Jaclyn Biegel
- Center for Personalized Medicine, Children’s Hospital Los Angeles, Los Angeles, CA, USA
| | - Venkata Yellapantula
- Center for Personalized Medicine, Children’s Hospital Los Angeles, Los Angeles, CA, USA
| | - Aaron Nagiel
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA,The Saban Research Institute, Children’s Hospital Los Angeles, Los Angeles, CA, USA
| | - Bibiana Jin Reiser
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA,The Saban Research Institute, Children’s Hospital Los Angeles, Los Angeles, CA, USA
| | - Liya Xu
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
| | - Jesse L. Berry
- The Vision Center, Children’s Hospital Los Angeles, Los Angeles, CA, USA,USC Roski Eye Institute, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA,The Saban Research Institute, Children’s Hospital Los Angeles, Los Angeles, CA, USA,Norris Comprehensive Cancer Center, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
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6
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Kondkar AA, Azad TA, Sultan T, Radhakrishnan R, Osman EA, Almobarak FA, Lobo GP, Al-Obeidan SA. Polymorphism rs3742330 in microRNA Biogenesis Gene DICER1 Is Associated with Pseudoexfoliation Glaucoma in Saudi Cohort. Genes (Basel) 2022; 13:genes13030489. [PMID: 35328042 PMCID: PMC8956095 DOI: 10.3390/genes13030489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 12/11/2022] Open
Abstract
We investigated the association between DICER1 (rs3742330) and DROSHA (rs10719) polymorphisms and pseudoexfoliation glaucoma (PXG) and related clinical phenotypes in a Saudi cohort. In a retrospective case-control study, TaqMan real-time, PCR-based genotyping was performed in 340 participants with 246 controls and 94 PXG cases. The minor (G) allele frequency of rs3742330 in PXG (0.03) was significantly different from that in the controls (0.08) and protective against PXG (odds ratio (OR) = 0.38, 95% confidence interval (CI) = 0.16–0.92), p = 0.017). Similarly, the rs3742330 genotypes showed a significant protective association with PXG in dominant (p = 0.019, OR = 0.38, 95% CI = 0.15–0.92), over-dominant (p = 0.024, OR = 0.39, 95% CI = 0.16–0.95), and log-additive models (p = 0.017, OR = 0.38, 95% CI = 0.16–0.92). However, none remained significant after an adjustment for age, sex, and multiple testing. Rs10719 in DROSHA did not show any significant allelic or genotype association with PXG. However, a protective effect of the GA haplotype in DICER1 and DROSHA and PXG (p = 0.034) was observed. Both polymorphisms showed no significant effect on intraocular pressure and the cup–disk ratio. In conclusion, we report a significant genetic association between variant rs3742330 in DICER1, a gene involved in miRNA biogenesis, and PXG. Further investigation in a larger group of patients of different ethnicities and functional studies are warranted to replicate and validate its potential role in PXG.
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Affiliation(s)
- Altaf A. Kondkar
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia; (T.A.A.); (T.S.); (E.A.O.); (F.A.A.); (S.A.A.-O.)
- Glaucoma Research Chair in Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
- King Saud University Medical City, Department of Ophthalmology, King Saud University, Riyadh 12372, Saudi Arabia
- Correspondence: ; Tel.: +966-12825290
| | - Taif A. Azad
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia; (T.A.A.); (T.S.); (E.A.O.); (F.A.A.); (S.A.A.-O.)
| | - Tahira Sultan
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia; (T.A.A.); (T.S.); (E.A.O.); (F.A.A.); (S.A.A.-O.)
| | - Rakesh Radhakrishnan
- Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN 55455, USA; (R.R.); (G.P.L.)
| | - Essam A. Osman
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia; (T.A.A.); (T.S.); (E.A.O.); (F.A.A.); (S.A.A.-O.)
| | - Faisal A. Almobarak
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia; (T.A.A.); (T.S.); (E.A.O.); (F.A.A.); (S.A.A.-O.)
- Glaucoma Research Chair in Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
| | - Glenn P. Lobo
- Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN 55455, USA; (R.R.); (G.P.L.)
| | - Saleh A. Al-Obeidan
- Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia; (T.A.A.); (T.S.); (E.A.O.); (F.A.A.); (S.A.A.-O.)
- Glaucoma Research Chair in Department of Ophthalmology, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia
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7
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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: 59] [Impact Index Per Article: 29.5] [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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8
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Chong AS, Han H, Albrecht S, Weon YC, Park SK, Foulkes WD. DICER1 syndrome in a young adult with pituitary blastoma. Acta Neuropathol 2021; 142:1071-1076. [PMID: 34677675 DOI: 10.1007/s00401-021-02378-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 12/23/2022]
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9
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Bakhuizen JJ, Hanson H, van der Tuin K, Lalloo F, Tischkowitz M, Wadt K, Jongmans MCJ. Surveillance recommendations for DICER1 pathogenic variant carriers: a report from the SIOPE Host Genome Working Group and CanGene-CanVar Clinical Guideline Working Group. Fam Cancer 2021; 20:337-348. [PMID: 34170462 PMCID: PMC8484187 DOI: 10.1007/s10689-021-00264-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 05/19/2021] [Indexed: 12/15/2022]
Abstract
DICER1 syndrome is a rare genetic disorder that predisposes to a wide spectrum of tumors. Developing surveillance protocols for this syndrome is challenging because uncertainty exists about the clinical efficacy of surveillance, and appraisal of potential benefits and harms vary. In addition, there is increasing evidence that germline DICER1 pathogenic variants are associated with lower penetrance for cancer than previously assumed. To address these issues and to harmonize DICER1 syndrome surveillance programs within Europe, the Host Genome Working Group of the European branch of the International Society of Pediatric Oncology (SIOPE HGWG) and Clinical Guideline Working Group of the CanGene-CanVar project in the United Kingdom reviewed current surveillance strategies and evaluated additional relevant literature. Consensus was achieved for a new surveillance protocol and information leaflet that informs patients about potential symptoms of DICER1-associated tumors. The surveillance protocol comprises a minimum program and an extended version for consideration. The key recommendations of the minimum program are: annual clinical examination from birth to age 20 years, six-monthly chest X-ray and renal ultrasound from birth to age 6 years, and thyroid ultrasound every 3 years from age 8 to age 40 years. The surveillance program for consideration comprises additional surveillance procedures, and recommendations for DICER1 pathogenic variant carriers outside the ages of the surveillance interval. Patients have to be supported in choosing the surveillance program that best meets their needs. Prospective evaluation of the efficacy and patient perspectives of proposed surveillance recommendations is required to expand the evidence base for DICER1 surveillance protocols.
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Affiliation(s)
- Jette J Bakhuizen
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands.,Department of Genetics, University Medical Center Utrecht, PO Box 85090, 3508 AB, Utrecht, The Netherlands
| | - Helen Hanson
- Department of Clinical Genetics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Karin van der Tuin
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Fiona Lalloo
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, UK
| | - Marc Tischkowitz
- Department of Medical Genetics, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge University Hospital NHS Foundation Trust, Cambridge, UK
| | - Karin Wadt
- Department of Clinical Genetics, Copenhagen University Hospital Righospitalet, Copenhagen, Denmark
| | - Marjolijn C J Jongmans
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands. .,Department of Genetics, University Medical Center Utrecht, PO Box 85090, 3508 AB, Utrecht, The Netherlands.
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Mirshahi UL, Kim J, Best AF, Chen ZE, Hu Y, Haley JS, Golden A, Stahl R, Manickam K, Carr AG, Harney LA, Field A, Hatton J, Schultz KAP, Bauer AJ, Hill DA, Rosenberg PS, Murray MF, Carey DJ, Stewart DR. A Genome-First Approach to Characterize DICER1 Pathogenic Variant Prevalence, Penetrance, and Phenotype. JAMA Netw Open 2021; 4:e210112. [PMID: 33630087 PMCID: PMC7907958 DOI: 10.1001/jamanetworkopen.2021.0112] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
IMPORTANCE Genetic disorders are historically defined through phenotype-first approaches. However, risk estimates derived from phenotype-linked ascertainment may overestimate severity and penetrance. Pathogenic variants in DICER1 are associated with increased risks of rare and common neoplasms and thyroid disease in adults and children. This study explored how effectively a genome-first approach could characterize the clinical traits associated with germline DICER1 putative loss-of-function (pLOF) variants in an unselected clinical cohort. OBJECTIVE To examine the prevalence, penetrance, and phenotypic characteristics of carriers of germline DICER1 pLOF variants via genome-first ascertainment. DESIGN, SETTING, AND PARTICIPANTS This cohort study classifies DICER1 variants in germline exome sequence data from 92 296 participants of the Geisinger MyCode Community Health Initiative. Data for each MyCode participant were used from the start of the Geisinger electronic health record to February 1, 2018. MAIN OUTCOMES AND MEASURES Prevalence of germline DICER1 variation; penetrance of malignant tumors and thyroid disease in carriers of germline DICER1 variation; structured, manual review of electronic health records; and DICER1 sequencing of available tumors from an associated cancer registry. RESULTS A total of 92 296 adults (mean [SD] age, 59 [18] years; 98% white; 60% female) participated in the study. Germline DICER1 pLOF variants were observed in 1 in 3700 to 1 in 4600 participants, more than double the expected prevalence. Malignant tumors (primarily thyroid carcinoma) were observed in 4 of 25 participants (16%) with DICER1 pLOF variants, which is comparable (by 50 years of age) to the frequency of neoplasms in the largest registry- and clinic-based (phenotype-first) DICER1 studies published to date. DICER1 pLOF variants were significantly associated with risks of thyroidectomy (odds ratio [OR], 6.0; 95% CI, 2.2-16.3; P = .007) and thyroid cancer (OR, 9.2; 95% CI, 2.1-34.7; P = .02) compared with controls, but there was not a significant increase in the risk of goiter (OR, 1.8; 95% CI, 0.7-4.9). A female patient in her 80s who was a carrier of a germline DICER1 hotspot variant was apparently healthy on electronic health record review. The term DICER1 did not appear in any of the medical records of the 25 participants with a pLOF DICER1 variant, even in those affected with a known DICER1-associated tumor or thyroid phenotype. CONCLUSIONS AND RELEVANCE This cohort study was able to ascertain individuals with germline DICER1 variants based on a genome-first approach rather than through a previously established DICER1-related phenotype. Use of the genome-first approach may complement more traditional approaches to syndrome delineation and may be an efficient approach for risk estimation.
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Affiliation(s)
| | - Jung Kim
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Ana F. Best
- Biostatistics Branch, Biometric Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Zongming E. Chen
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Ying Hu
- Geisinger Clinic, Geisinger Health System, Danville, Pennsylvania
- Department of Endocrinology, Main Line Health System, Wynnewood, Pennsylvania
| | - Jeremy S. Haley
- Geisinger Clinic, Geisinger Health System, Danville, Pennsylvania
| | - Alicia Golden
- Geisinger Clinic, Geisinger Health System, Danville, Pennsylvania
| | - Richard Stahl
- Geisinger Clinic, Geisinger Health System, Danville, Pennsylvania
| | - Kandamurugu Manickam
- Division of Genetic and Genomic Medicine, Nationwide Children’s Hospital, Columbus, Ohio
| | | | | | | | - Jessica Hatton
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Kris Ann P. Schultz
- Cancer and Blood Disorders, Children’s Minnesota, Minneapolis
- International Pleuropulmonary Blastoma/DICER1 Registry, Minneapolis, Minnesota
- International Ovarian and Testicular Stromal Tumor Registry, Minneapolis, Minnesota
| | - Andrew J. Bauer
- The Thyroid Center, Division of Endocrinology and Diabetes, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - D. Ashley Hill
- ResourcePath, Sterling, Virginia
- Division of Pathology and Center for Cancer and Immunology Research, Children's National Health System, Washington, DC
- Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Philip S. Rosenberg
- Biostatistics Branch, Biometric Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Michael F. Murray
- Department of Genetics, Yale School of Medicine, New Haven, Connecticut
| | - David J. Carey
- Geisinger Clinic, Geisinger Health System, Danville, Pennsylvania
| | - Douglas R. Stewart
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
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11
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Caroleo AM, De Ioris MA, Boccuto L, Alessi I, Del Baldo G, Cacchione A, Agolini E, Rinelli M, Serra A, Carai A, Mastronuzzi A. DICER1 Syndrome and Cancer Predisposition: From a Rare Pediatric Tumor to Lifetime Risk. Front Oncol 2021; 10:614541. [PMID: 33552988 PMCID: PMC7859642 DOI: 10.3389/fonc.2020.614541] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/24/2020] [Indexed: 12/24/2022] Open
Abstract
DICER1 syndrome is a rare genetic condition predisposing to hereditary cancer and caused by variants in the DICER1 gene. The risk to present a neoplasm before the age of 10 years is 5.3 and 31.5% before the age of 60. DICER1 variants have been associated with a syndrome involving familial pleuropulmonary blastoma (PPB), a rare malignant tumor of the lung, which occurs primarily in children under the age of 6 years and represents the most common life-threatening manifestation of DICER1 syndrome. Type I, II, III, and Ir (type I regressed) PPB are reported with a 5-year overall survival ranging from 53 to 100% (for type Ir). DICER1 gene should be screened in all patients with PPB and considered in other tumors mainly in thyroid neoplasms (multinodular goiter, thyroid cancer, adenomas), ovarian tumors (Sertoli-Leydig cell tumor, sarcoma, and gynandroblastoma), and cystic nephroma. A prompt identification of this syndrome is necessary to plan a correct follow-up and screening during lifetime.
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Affiliation(s)
- Anna Maria Caroleo
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
| | - Maria Antonietta De Ioris
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
| | - Luigi Boccuto
- JC Self Research Institute, Greenwood Genetic Center, Greenwood, SC, United States.,School of Nursing, College of Behavioral, Social and Health Sciences, Clemson University, Clemson, SC, United States
| | - Iside Alessi
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
| | - Giada Del Baldo
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
| | - Antonella Cacchione
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
| | - Emanuele Agolini
- Laboratory of Medical Genetics, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Martina Rinelli
- Laboratory of Medical Genetics, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Annalisa Serra
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
| | - Andrea Carai
- Department of Neuroscience, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
| | - Angela Mastronuzzi
- Department of Onco - Hematology and Cell and Gene Therapy, Bambino Gesù Pediatric Hospital (IRCCS), Roma, Italy
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12
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Vasta LM, Nichols A, Harney LA, Best AF, Carr AG, Harris AK, Miettinen M, Schultz KAP, Kim HJ, Stewart DR. Nasal chondromesenchymal hamartomas in a cohort with pathogenic germline variation in DICER1. RHINOLOGY ONLINE 2020; 3:15-24. [PMID: 34164613 DOI: 10.4193/rhinol/20.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background Nasal chondromesenchymal hamartomas are benign, rare nasal tumors associated with DICER1 pathogenic germline variation. They can be locally destructive and recurrent if not completely resected. Methodology In this single-center, case-control study, otorhinolaryngology evaluations and review of systems questionnaires of DICER1-carriers and controls enrolled in the DICER1 Natural History Study at the National Cancer Institute were collected. Review of these medical records were analyzed to determine if DICER1-carriers experienced different sinonasal clinical manifestations compared to controls. Additionally, the number of diagnoses of nasal chondromesenchymal hamartoma cases in the NCI DICER1 study was compared against the total person years of observation of DICER1-carriers in the study to determine the total number of cases per person-years of observation. Lastly, both the NCI DICER1 study and the International Pleuropulmonary Blastoma/DICER1 Registry were queried for unpublished cases of nasal chondromesenchymal hamartomas. Results There were no clinical differences in sinonasal symptomatology between DICER1-carriers and control patients seen in the ENT clinic. We observed of two cases of nasal chondromesenchymal hamartoma in a total of 555 person-years of monitoring DICER1-carriers. We include six unpublished nasal chondromesenchymal hamartoma cases. When combined with a comprehensive literature review, 38% of nasal chondromesenchymal hamartoma cases had at least one additional DICER1-associated tumor and 24% of the NCMH were found in the ethmoid sinus, the most commonly involved paranasal sinus. Conclusions We quantify the risk of developing nasal chondromesenchymal hamartomas in our cohort of 236 DICER1-carriers, report six unpublished cases, and provide an updated review of the literature.
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Affiliation(s)
- Lauren M Vasta
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD, USA.,National Capital Consortium, Walter Reed National Military Medical Center, Bethesda, MD, USA
| | - Alison Nichols
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD, USA
| | | | - Ana F Best
- Biostatistics Branch, Biometric Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Rockville, MD, USA
| | | | - Anne K Harris
- International Pleuropulmonary Blastoma/DICER1 Registry, Minneapolis, MN, USA
| | - Markku Miettinen
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Kris Ann P Schultz
- International Pleuropulmonary Blastoma/DICER1 Registry, Minneapolis, MN, USA.,Cancer and Blood Disorders Program, Children's Minnesota, Minneapolis, MN, USA
| | - Hung Jeffrey Kim
- Office of Clinical Director, National Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD.,Department of Otolaryngology-HNS, Georgetown University Medical Center, Washington, DC, USA
| | - Douglas R Stewart
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD, USA
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13
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de Kock L, Priest JR, Foulkes WD, Alexandrescu S. An update on the central nervous system manifestations of DICER1 syndrome. Acta Neuropathol 2020; 139:689-701. [PMID: 30953130 DOI: 10.1007/s00401-019-01997-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/25/2019] [Accepted: 03/26/2019] [Indexed: 02/06/2023]
Abstract
DICER1 syndrome is a rare tumor predisposition syndrome with manifestations that predominantly affect children and young adults. The syndrome is typically caused by heterozygous germline loss-of-function DICER1 alterations accompanied on the other allele by somatic missense mutations occurring at one of a few mutation hotspots within the sequence encoding the RNase IIIb domain. DICER1 encodes a member of the microRNA biogenesis machinery. The syndrome spectrum is highly pleiotropic and features a unique constellation of benign and malignant neoplastic and dysplastic lesions. Pleuropulmonary blastoma (PPB), the most common primary lung cancer in children, is the hallmark tumor of the syndrome. Other manifestations include ovarian Sertoli-Leydig cell tumor, cystic nephroma arising in childhood, multinodular goiter, thyroid carcinoma, anaplastic sarcoma of the kidney, embryonal rhabdomyosarcoma, and nasal chondromesenchymal hamartoma, in addition to other rare entities. Several central nervous system (CNS) manifestations have also been defined, including metastases of PPB to the cerebrum, pituitary blastoma, pineoblastoma, ciliary body medulloepithelioma, and most recently primary DICER1-associated CNS sarcomas and ETMR-like infantile cerebellar embryonal tumor. Macrocephaly is a recently reported non-neoplastic, haploinsufficient phenotype. In this manuscript, we review the CNS manifestations of DICER1 syndrome.
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Affiliation(s)
- Leanne de Kock
- Department of Human Genetics, McGill University, 3640 Rue University, Room W-315D, Montreal, QC, H3A 0C7, Canada
- Lady Davis Institute, Jewish General Hospital, 3755 Cote-Sainte-Catherine Road, Montreal, QC, H3T 1E2, Canada
| | | | - William D Foulkes
- Department of Human Genetics, McGill University, 3640 Rue University, Room W-315D, Montreal, QC, H3A 0C7, Canada
- Lady Davis Institute, Jewish General Hospital, 3755 Cote-Sainte-Catherine Road, Montreal, QC, H3T 1E2, Canada
- Research Institute of the McGill University Health Centre, 1001 Décarie Boulevard, Montreal, QC, H4A 3J1, Canada
| | - Sanda Alexandrescu
- Department of Pathology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Bader 104, Boston, MA, 02115, USA.
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14
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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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15
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Kock L, Wu MK, Foulkes WD. Ten years of
DICER1
mutations: Provenance, distribution, and associated phenotypes. Hum Mutat 2019; 40:1939-1953. [DOI: 10.1002/humu.23877] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 07/08/2019] [Accepted: 07/19/2019] [Indexed: 01/08/2023]
Affiliation(s)
- Leanne Kock
- Department of Human Genetics McGill University Montréal Québec Canada
- Cancer Axis Lady Davis Institute, Jewish General Hospital Montréal Québec Canada
| | - Mona K. Wu
- Department of Human Genetics McGill University Montréal Québec Canada
- Cancer Axis Lady Davis Institute, Jewish General Hospital Montréal Québec Canada
| | - William D. Foulkes
- Department of Human Genetics McGill University Montréal Québec Canada
- Cancer Axis Lady Davis Institute, Jewish General Hospital Montréal Québec Canada
- Cancer Research Program Research Institute of the McGill University Health Centre Montreal Quebec Canada
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16
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Germline Genetics and Childhood Cancer: Emerging Cancer Predisposition Syndromes and Psychosocial Impacts. Curr Oncol Rep 2019; 21:85. [PMID: 31414239 DOI: 10.1007/s11912-019-0836-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE OF REVIEW Germline genetic variants contribute to a substantial proportion of cases of cancer in childhood. The purpose of this review is to describe two emerging pediatric cancer predisposition syndromes, including published surveillance protocols, as well as the psychological impacts related to childhood cancer predisposition. RECENT FINDINGS DICER1 syndrome is pleotropic, predisposing to a variety of tumors and likely phenotypically broader than currently realized. Rhabdoid tumor predisposition syndrome carries a risk for development of aggressive malignancies occurring in nearly any tissue. New pediatric hereditary cancer syndromes are likely to be identified as genetic evaluation evolves. Advantages and disadvantages of genetic testing and surveillance protocols need to be discussed with patients and families in a team-based approach, with the input of a genetic counselor holding expertise in pediatric cancer predisposition. Finally, literature on psychosocial impacts of hereditary cancer syndromes in pediatric patients is sparse, necessitating further research.
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17
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Choi S, Lee JS, Bassim CW, Kushner H, Carr AG, Gardner PJ, Harney LA, Schultz KAP, Stewart DR. Dental abnormalities in individuals with pathogenic germline variation in DICER1. Am J Med Genet A 2019; 179:1820-1825. [PMID: 31313479 DOI: 10.1002/ajmg.a.61292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 06/20/2019] [Accepted: 06/23/2019] [Indexed: 12/13/2022]
Abstract
Pathogenic germline variation in the microRNA processing gene DICER1 gives rise to an autosomal dominant, tumor-predisposition disorder. Conditional deletion of Dicer1 in murine dental epithelium shows that it controls tooth patterning, size, number, and shape. The human dental phenotype of people with germline pathogenic variation in DICER1 is unknown. DICER1-carriers (n = 57) and family controls (n = 55) were evaluated at the NIH Clinical Center dental clinic as part of a comprehensive medical evaluation. Digital panoramic radiographs, bite-wing radiographs, and oral photographs were collected. A single observer, blind to DICER1 status, reviewed the dental records and determined the presence or absence of 11 dental characteristics as described in the clinic notes, radiographs, or oral photographs. Subjective phenotypes were reviewed on radiographs by two examiners (blind to DICER1 status) for the presence or absence of the dental characteristics to reduce inconsistencies. By simple association, bulbous crown, periodontitis, and taurodontism were all significant (p < .05). Logistic regression with chi-square maximum likelihood estimates showed that bulbous crown and periodontitis remained significant. Recognition of these phenotypes may aid identification of individuals and families at risk for DICER1-associated neoplasms. These findings may also guide dental care for individuals with germline DICER1 pathogenic variation.
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Affiliation(s)
- Sooji Choi
- Office of the Clinical Director, National Institute of Dental and Craniofacial Research, Bethesda, Maryland
| | - Janice S Lee
- Office of the Clinical Director, National Institute of Dental and Craniofacial Research, Bethesda, Maryland
| | - Carol W Bassim
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Harvey Kushner
- BioMedical Computer Research Institute, Philadelphia, Pennsylvania
| | | | - Pamela J Gardner
- Office of the Clinical Director, National Institute of Dental and Craniofacial Research, Bethesda, Maryland
| | | | - Kris Ann P Schultz
- International Pleuropulmonary Blastoma/DICER1 Registry, Children's Minnesota, Minneapolis, Minnesota.,International Ovarian and Testicular Stromal Tumor Registry, Children's Minnesota, Minneapolis, Minnesota.,Cancer and Blood Disorders, Children's Minnesota, Minneapolis, Minnesota
| | - Douglas R Stewart
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH Rockville, Maryland
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