Blueprint Genetics Bone Marrow Failure Syndrome Panel
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Blueprint Genetics Hereditary Leukemia Panel
Hereditary Leukemia Panel Test code: ON0101 Is a 41 gene panel that includes assessment of non-coding variants. Is ideal for patients with a personal history of a syndrome that confers an increased risk of leukemia or patients with a family history of a syndrome that confers an increased risk of leukemia. About Hereditary Leukemia An inherited predisposition to hematological malignancies, namely acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), and bone marrow myelodysplastic syndrome (MDS) may be associated with syndromic features or occur as the principal clinical feature. MDSs and AMLs can occur in the context of syndromic bone marrow failure (eg. dyskeratosis congenita, Fanconi anemia). Other hereditary syndromes with an increased risk of leukemia include Li-Fraumeni syndrome (TP53), ataxia telangiectasia (ATM), Bloom syndrome (BLM), neurofibromatosis type 1 (NF1) and less frequently Noonan syndrome (PTPN11, CBL). Some reports have also shown an association of biallelic germline mutations in constitutional mismatch repair-deficiency syndrome genes, MLH1, MSH2, MSH6, and PMS2 with the development of ALL. Isolated hematological malignancies are associated with germline mutations in RUNX1 (familial platelet syndrome with predisposition to acute myelogenous leukemia), CEBPA (familial AML), GATA2 (GATA2-associated syndromes) and DDX41(DDX41 -related myeloid neoplasms). There is a rapidly expanding list of germline mutations associated with increased risks for myeloid malignancies and inherited predisposition to hematologic malignancies may be more common than has been thought. Many different genetic defects associated with the development of leukemia have been described but the common underlying mechanism is a dysfunctional DNA damage response. Recognition of an inherited cause provides a specific molecular diagnosis and helps to guide treatment, understand unique disease features, prognosis and other organ systems that may be involved, and identify others in the family who may be at risk. -
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CCR PEDIATRIC ONCOLOGY SERIES CCR Pediatric Oncology Series Recommendations for Childhood Cancer Screening and Surveillance in DNA Repair Disorders Michael F. Walsh1, Vivian Y. Chang2, Wendy K. Kohlmann3, Hamish S. Scott4, Christopher Cunniff5, Franck Bourdeaut6, Jan J. Molenaar7, Christopher C. Porter8, John T. Sandlund9, Sharon E. Plon10, Lisa L. Wang10, and Sharon A. Savage11 Abstract DNA repair syndromes are heterogeneous disorders caused by around the world to discuss and develop cancer surveillance pathogenic variants in genes encoding proteins key in DNA guidelines for children with cancer-prone disorders. Herein, replication and/or the cellular response to DNA damage. The we focus on the more common of the rare DNA repair dis- majority of these syndromes are inherited in an autosomal- orders: ataxia telangiectasia, Bloom syndrome, Fanconi ane- recessive manner, but autosomal-dominant and X-linked reces- mia, dyskeratosis congenita, Nijmegen breakage syndrome, sive disorders also exist. The clinical features of patients with DNA Rothmund–Thomson syndrome, and Xeroderma pigmento- repair syndromes are highly varied and dependent on the under- sum. Dedicated syndrome registries and a combination of lying genetic cause. Notably, all patients have elevated risks of basic science and clinical research have led to important in- syndrome-associated cancers, and many of these cancers present sights into the underlying biology of these disorders. Given the in childhood. Although it is clear that the risk of cancer is rarity of these disorders, it is recommended that centralized increased, there are limited data defining the true incidence of centers of excellence be involved directly or through consulta- cancer and almost no evidence-based approaches to cancer tion in caring for patients with heritable DNA repair syn- surveillance in patients with DNA repair disorders. -
CCR PEDIATRIC ONCOLOGY SERIES CCR Pediatric Oncology Series Recommendations for Surveillance for Children with Leukemia-Predisposing Conditions Christopher C
CCR PEDIATRIC ONCOLOGY SERIES CCR Pediatric Oncology Series Recommendations for Surveillance for Children with Leukemia-Predisposing Conditions Christopher C. Porter1, Todd E. Druley2, Ayelet Erez3, Roland P. Kuiper4, Kenan Onel5, Joshua D. Schiffman6, Kami Wolfe Schneider7, Sarah R. Scollon8, Hamish S. Scott9, Louise C. Strong10, Michael F. Walsh11, and Kim E. Nichols12 Abstract Leukemia, the most common childhood cancer, has long been patients. The panel recognized that for several conditions, recognized to occasionally run in families. The first clues about routine monitoring with complete blood counts and bone the genetic mechanisms underlying familial leukemia emerged marrow evaluations is essential to identify disease evolution in 1990 when Li-Fraumeni syndrome was linked to TP53 muta- and enable early intervention with allogeneic hematopoietic tions. Since this discovery, many other genes associated with stem cell transplantation. However, for others, less intensive hereditary predisposition to leukemia have been identified. surveillance may be considered. Because few reports describ- Although several of these disorders also predispose individuals ing the efficacy of surveillance exist, the recommendations to solid tumors, certain conditions exist in which individuals are derived by this panel are based on opinion, and local expe- specifically at increased risk to develop myelodysplastic syn- rience and will need to be revised over time. The development drome (MDS) and/or acute leukemia. The increasing identifica- of registries and clinical trials is urgently needed to enhance tion of affected individuals and families has raised questions understanding of the natural history of the leukemia-predis- around the efficacy, timing, and optimal methods of surveil- posing conditions, such that these surveillance recommenda- lance. -
Exostoses, Enchondromatosis and Metachondromatosis; Diagnosis and Management
Acta Orthop. Belg., 2016, 82, 102-105 ORIGINAL STUDY Exostoses, enchondromatosis and metachondromatosis; diagnosis and management John MCFARLANE, Tim KNIGHT, Anubha SINHA, Trevor COLE, Nigel KIELY, Rob FREEMAN From the Department of Orthopaedics, Robert Jones Agnes Hunt Hospital, Oswestry, UK We describe a 5 years old girl who presented to the region of long bones and are composed of a carti- multidisciplinary skeletal dysplasia clinic following lage lump outside the bone which may be peduncu- excision of two bony lumps from her fingers. Based on lated or sessile, the knee is the most common clinical examination, radiolographs and histological site (1,10). An isolated exostosis is a common inci- results an initial diagnosis of hereditary multiple dental finding rarely requiring treatment. Disorders exostosis (HME) was made. Four years later she developed further lumps which had the radiological associated with exostoses include HME, Langer- appearance of enchondromas. The appearance of Giedion syndrome, Gardner syndrome and meta- both exostoses and enchondromas suggested a possi- chondromatosis. ble diagnosis of metachondromatosis. Genetic testing Enchondroma are the second most common be- revealed a splice site mutation at the end of exon 11 on nign bone tumour characterised by the formation of the PTPN11 gene, confirming the diagnosis of meta- hyaline cartilage in the medulla of a bone. It occurs chondromatosis. While both single or multiple exosto- most frequently in the hand (60%) and then the feet. ses and enchondromas occur relatively commonly on The typical radiological features are of a well- their own, the appearance of multiple exostoses and defined lucent defect with endosteal scalloping and enchondromas together is rare and should raise the differential diagnosis of metachondromatosis. -
Disease Reference Book
The Counsyl Foresight™ Carrier Screen 180 Kimball Way | South San Francisco, CA 94080 www.counsyl.com | [email protected] | (888) COUNSYL The Counsyl Foresight Carrier Screen - Disease Reference Book 11-beta-hydroxylase-deficient Congenital Adrenal Hyperplasia .................................................................................................................................................................................... 8 21-hydroxylase-deficient Congenital Adrenal Hyperplasia ...........................................................................................................................................................................................10 6-pyruvoyl-tetrahydropterin Synthase Deficiency ..........................................................................................................................................................................................................12 ABCC8-related Hyperinsulinism........................................................................................................................................................................................................................................ 14 Adenosine Deaminase Deficiency .................................................................................................................................................................................................................................... 16 Alpha Thalassemia............................................................................................................................................................................................................................................................. -
My Beloved Neutrophil Dr Boxer 2014 Neutropenia Family Conference
The Beloved Neutrophil: Its Function in Health and Disease Stem Cell Multipotent Progenitor Myeloid Lymphoid CMP IL-3, SCF, GM-CSF CLP Committed Progenitor MEP GMP GM-CSF, IL-3, SCF EPO TPO G-CSF M-CSF IL-5 IL-3 SCF RBC Platelet Neutrophil Monocyte/ Basophil B-cells Macrophage Eosinophil T-Cells Mast cell NK cells Mature Cell Dendritic cells PRODUCTION AND KINETICS OF NEUTROPHILS CELLS % CELLS TIME Bone Marrow: Myeloblast 1 7 - 9 Mitotic Promyelocyte 4 Days Myelocyte 16 Maturation/ Metamyelocyte 22 3 – 7 Storage Band 30 Days Seg 21 Vascular: Peripheral Blood Seg 2 6 – 12 hours 3 Marginating Pool Apoptosis and ? Tissue clearance by 0 – 3 macrophages days PHAGOCYTOSIS 1. Mobilization 2. Chemotaxis 3. Recognition (Opsonization) 4. Ingestion 5. Degranulation 6. Peroxidation 7. Killing and Digestion 8. Net formation Adhesion: β 2 Integrins ▪ Heterodimer of a and b chain ▪ Tight adhesion, migration, ingestion, co- stimulation of other PMN responses LFA-1 Mac-1 (CR3) p150,95 a2b2 a CD11a CD11b CD11c CD11d b CD18 CD18 CD18 CD18 Cells All PMN, Dendritic Mac, mono, leukocytes mono/mac, PMN, T cell LGL Ligands ICAMs ICAM-1 C3bi, ICAM-3, C3bi other other Fibrinogen other GRANULOCYTE CHEMOATTRACTANTS Chemoattractants Source Activators Lipids PAF Neutrophils C5a, LPS, FMLP Endothelium LTB4 Neutrophils FMLP, C5a, LPS Chemokines (a) IL-8 Monocytes, endothelium LPS, IL-1, TNF, IL-3 other cells Gro a, b, g Monocytes, endothelium IL-1, TNF other cells NAP-2 Activated platelets Platelet activation Others FMLP Bacteria C5a Activation of complement Other Important Receptors on PMNs ñ Pattern recognition receptors – Detect microbes - Toll receptor family - Mannose receptor - bGlucan receptor – fungal cell walls ñ Cytokine receptors – enhance PMN function - G-CSF, GM-CSF - TNF Receptor ñ Opsonin receptors – trigger phagocytosis - FcgRI, II, III - Complement receptors – ñ Mac1/CR3 (CD11b/CD18) – C3bi ñ CR-1 – C3b, C4b, C3bi, C1q, Mannose binding protein From JG Hirsch, J Exp Med 116:827, 1962, with permission. -
Dyskeratosis Congenita Precision Panel Overview Indications Clinical
Dyskeratosis Congenita Precision Panel Overview Dyskeratosis Congenita (DKC) is a rare, progressive bone marrow failure syndrome characterized by reticulated skin hyperpigmentation, nail dystrophy and oral leukoplakia. Patients usually present with symptoms of skin hyperpigmentation and nail changes during the first decade of life. It is caused by germline mutations in genes regulating telomere maintenance, resulting in very short telomeres. DKC is a genetically heterogeneous with X-linked recessive form being the most common, autosomal dominant and autosomal recessive subtypes based on different patters of inheritance. Early mortality is associated with bone marrow failure, infections, lung and pulmonary complications as well as malignancy. The Igenomix Dyskeratosis Congenita Precision Panel can be used for an accurate and directed diagnosis as well as differential diagnosis of reticulate pigmentary disorders ultimately leading to a better management and prognosis of the disease. It provides a comprehensive analysis of the genes involved in this disease using next-generation sequencing (NGS) to fully understand the spectrum of relevant genes involved. Indications The Igenomix Dyskeratosis Congenita Precision Panel is used for patients with a clinical diagnosis or suspicion with or without the following symptoms: ‐ Abnormal skin pigmentation (tan-to-gray hyperpigmented or hypopigmented macules and patches) ‐ Nail dystrophy ‐ Skin atrophy and telangiectasia ‐ Alopecia of the skin, eyebrows and eyelashes ‐ Mucosal leukoplakia ‐ Bone marrow failure ‐ Dental manifestations Clinical Utility The clinical utility of this panel is: ‐ The genetic and molecular confirmation for an accurate clinical diagnosis of a symptomatic patient. 1 ‐ Early initiation of treatment involving a multidisciplinary team in the form of hematopoietic stem cell transplantation as well as medical care to prevent complications and early surveillance of malignancy. -
Targeted Disruption of Shp2 in Chondrocytes Leads to Metachondromatosis with Multiple Cartilaginous Protrusions
ORIGINAL ARTICLE JBMR Targeted Disruption of Shp2 in Chondrocytes Leads to Metachondromatosis With Multiple Cartilaginous Protrusions Harry KW Kim,1,2 Gen‐Sheng Feng,3 Di Chen,4 Philip D King,5 and Nobuhiro Kamiya1,2 1Texas Scottish Rite Hospital for Children, Dallas, TX, USA 2Orthopaedic Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA 3Department of Pathology and Division of Biological Sciences, University of California San Diego, La Jolla, CA, USA 4Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA 5Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA ABSTRACT Metachondromatosis is a benign bone disease predominantly observed in the hands and feet of children or young adults demonstrating two different manifestations: a cartilage‐capped bony outgrowth on the surface of the bone called exostosis and ectopic cartilaginous nodules inside the bone called enchondroma. Recently, it has been reported that loss‐of‐function mutations of the SHP2 gene, which encodes the SHP2 protein tyrosine phosphatase, are associated with metachondromatosis. The purpose of this study was to investigate the role of SHP2 in postnatal cartilage development, which is largely unknown. We disrupted Shp2 during the postnatal stage of mouse development in a chondrocyte‐specific manner using a tamoxifen‐inducible system. We found tumor‐like nodules on the hands and feet within a month after the initial induction. The SHP2‐deficient mice demonstrated an exostosis‐like and enchondroma‐like phenotype in multiple bones of the hands, feet, and ribs as assessed by X‐ray and micro‐computed tomography (CT). Histological assessment revealed the disorganization of the growth plate cartilage, a cartilaginous protrusion from the epiphyseal bone, and ectopic cartilage nodules within the bones, which is consistent with the pathological features of metachondromatosis in humans (ie, both exostosis and enchondroma). -
Prevalence and Incidence of Rare Diseases: Bibliographic Data
Number 1 | January 2019 Prevalence and incidence of rare diseases: Bibliographic data Prevalence, incidence or number of published cases listed by diseases (in alphabetical order) www.orpha.net www.orphadata.org If a range of national data is available, the average is Methodology calculated to estimate the worldwide or European prevalence or incidence. When a range of data sources is available, the most Orphanet carries out a systematic survey of literature in recent data source that meets a certain number of quality order to estimate the prevalence and incidence of rare criteria is favoured (registries, meta-analyses, diseases. This study aims to collect new data regarding population-based studies, large cohorts studies). point prevalence, birth prevalence and incidence, and to update already published data according to new For congenital diseases, the prevalence is estimated, so scientific studies or other available data. that: Prevalence = birth prevalence x (patient life This data is presented in the following reports published expectancy/general population life expectancy). biannually: When only incidence data is documented, the prevalence is estimated when possible, so that : • Prevalence, incidence or number of published cases listed by diseases (in alphabetical order); Prevalence = incidence x disease mean duration. • Diseases listed by decreasing prevalence, incidence When neither prevalence nor incidence data is available, or number of published cases; which is the case for very rare diseases, the number of cases or families documented in the medical literature is Data collection provided. A number of different sources are used : Limitations of the study • Registries (RARECARE, EUROCAT, etc) ; The prevalence and incidence data presented in this report are only estimations and cannot be considered to • National/international health institutes and agencies be absolutely correct. -
Orphanet Report Series Rare Diseases Collection
Marche des Maladies Rares – Alliance Maladies Rares Orphanet Report Series Rare Diseases collection DecemberOctober 2013 2009 List of rare diseases and synonyms Listed in alphabetical order www.orpha.net 20102206 Rare diseases listed in alphabetical order ORPHA ORPHA ORPHA Disease name Disease name Disease name Number Number Number 289157 1-alpha-hydroxylase deficiency 309127 3-hydroxyacyl-CoA dehydrogenase 228384 5q14.3 microdeletion syndrome deficiency 293948 1p21.3 microdeletion syndrome 314655 5q31.3 microdeletion syndrome 939 3-hydroxyisobutyric aciduria 1606 1p36 deletion syndrome 228415 5q35 microduplication syndrome 2616 3M syndrome 250989 1q21.1 microdeletion syndrome 96125 6p subtelomeric deletion syndrome 2616 3-M syndrome 250994 1q21.1 microduplication syndrome 251046 6p22 microdeletion syndrome 293843 3MC syndrome 250999 1q41q42 microdeletion syndrome 96125 6p25 microdeletion syndrome 6 3-methylcrotonylglycinuria 250999 1q41-q42 microdeletion syndrome 99135 6-phosphogluconate dehydrogenase 67046 3-methylglutaconic aciduria type 1 deficiency 238769 1q44 microdeletion syndrome 111 3-methylglutaconic aciduria type 2 13 6-pyruvoyl-tetrahydropterin synthase 976 2,8 dihydroxyadenine urolithiasis deficiency 67047 3-methylglutaconic aciduria type 3 869 2A syndrome 75857 6q terminal deletion 67048 3-methylglutaconic aciduria type 4 79154 2-aminoadipic 2-oxoadipic aciduria 171829 6q16 deletion syndrome 66634 3-methylglutaconic aciduria type 5 19 2-hydroxyglutaric acidemia 251056 6q25 microdeletion syndrome 352328 3-methylglutaconic -
Chediak‑Higashi Syndrome in Three Indian Siblings
Case Report Silvery Hair with Speckled Dyspigmentation: Chediak‑Higashi Access this article online Website: Syndrome in Three Indian Siblings www.ijtrichology.com Chekuri Raghuveer, Sambasiviah Chidambara Murthy, DOI: Mallur N Mithuna, Tamraparni Suresh 10.4103/0974-7753.167462 Quick Response Code: Department of Dermatology and Venereology, Vijayanagara Institute of Medical Sciences, Bellary, Karnataka, India ABSTRACT Silvery hair is a common feature of Chediak-Higashi syndrome (CHS), Griscelli syndrome, and Elejalde syndrome. CHS is a rare autosomal recessive disorder characterized by partial oculocutaneous albinism, frequent pyogenic infections, and the presence of abnormal large granules in leukocytes and other granule containing cells. A 6-year-old girl had recurrent Address for correspondence: respiratory infections, speckled hypo- and hyper-pigmentation over exposed areas, and Dr. Chekuri Raghuveer, silvery hair since early childhood. Clinical features, laboratory investigations, hair microscopy, Department of Dermatology and skin biopsy findings were consistent with CHS. Her younger sisters aged 4 and 2 years and Venereology, Vijayanagara had similar clinical, peripheral blood picture, and hair microscopy findings consistent with Institute of Medical Sciences, CHS. This case is reported for its rare occurrence in all the three siblings of the family, prominent pigmentary changes, and absent accelerated phase till date. Awareness, early Bellary ‑ 583 104, recognition, and management of the condition may prevent the preterm morbidity associated. Karnataka, India. E‑mail: c_raghuveer@ yahoo.com Key words: Partial albinism, primary immunodeficiency, silvery hair syndrome INTRODUCTION frontal scalp, eyebrows, eyelashes [Figure 1], and ocular pigmentary dilution was present. Other systems including hediak‑Higashi syndrome (CHS) is a rare, autosomal neurological findings were normal. -
Whole Exome Sequencing Gene Package Intellectual Disability, Version 9.1, 31-1-2020
Whole Exome Sequencing Gene package Intellectual disability, version 9.1, 31-1-2020 Technical information DNA was enriched using Agilent SureSelect DNA + SureSelect OneSeq 300kb CNV Backbone + Human All Exon V7 capture and paired-end sequenced on the Illumina platform (outsourced). The aim is to obtain 10 Giga base pairs per exome with a mapped fraction of 0.99. The average coverage of the exome is ~50x. Duplicate and non-unique reads are excluded. Data are demultiplexed with bcl2fastq Conversion Software from Illumina. Reads are mapped to the genome using the BWA-MEM algorithm (reference: http://bio-bwa.sourceforge.net/). Variant detection is performed by the Genome Analysis Toolkit HaplotypeCaller (reference: http://www.broadinstitute.org/gatk/). The detected variants are filtered and annotated with Cartagenia software and classified with Alamut Visual. It is not excluded that pathogenic mutations are being missed using this technology. At this moment, there is not enough information about the sensitivity of this technique with respect to the detection of deletions and duplications of more than 5 nucleotides and of somatic mosaic mutations (all types of sequence changes). HGNC approved Phenotype description including OMIM phenotype ID(s) OMIM median depth % covered % covered % covered gene symbol gene ID >10x >20x >30x A2ML1 {Otitis media, susceptibility to}, 166760 610627 66 100 100 96 AARS1 Charcot-Marie-Tooth disease, axonal, type 2N, 613287 601065 63 100 97 90 Epileptic encephalopathy, early infantile, 29, 616339 AASS Hyperlysinemia,