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Schierz IAM, Piro E, Giuffrè M, Pinello G, Angelini A, Antona V, Cimador M, Corsello G. Clinical and genetic approach in the characterization of newborns with anorectal malformation. J Matern Fetal Neonatal Med 2022; 35:4513-4520. [DOI: 10.1080/14767058.2020.1854213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ingrid Anne Mandy Schierz
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Ettore Piro
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Mario Giuffrè
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Giuseppa Pinello
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Alice Angelini
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Vincenzo Antona
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Marcello Cimador
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Pediatric Surgery Unit, University Hospital “P. Giaccone”, Palermo, Italy
| | - Giovanni Corsello
- Department of Health Promotion, Mother-Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, Neonatal Intensive Care Unit, University Hospital “P. Giaccone”, Palermo, Italy
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Enhancing Molecular Testing for Effective Delivery of Actionable Gene Diagnostics. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9120745. [PMID: 36550951 PMCID: PMC9774983 DOI: 10.3390/bioengineering9120745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/07/2022] [Accepted: 11/29/2022] [Indexed: 12/02/2022]
Abstract
There is a deep need to navigate within our genomic data to find, understand and pave the way for disease-specific treatments, as the clinical diagnostic journey provides only limited guidance. The human genome is enclosed in every nucleated cell, and yet at the single-cell resolution many unanswered questions remain, as most of the sequencing techniques use a bulk approach. Therefore, heterogeneity, mosaicism and many complex structural variants remain partially uncovered. As a conceptual approach, nanopore-based sequencing holds the promise of being a single-molecule-based, long-read and high-resolution technique, with the ability of uncovering the nucleic acid sequence and methylation almost in real time. A key limiting factor of current clinical genetics is the deciphering of key disease-causing genomic sequences. As the technological revolution is expanding regarding genetic data, the interpretation of genotype-phenotype correlations should be made with fine caution, as more and more evidence points toward the presence of more than one pathogenic variant acting together as a result of intergenic interplay in the background of a certain phenotype observed in a patient. This is in conjunction with the observation that many inheritable disorders manifest in a phenotypic spectrum, even in an intra-familial way. In the present review, we summarized the relevant data on nanopore sequencing regarding clinical genomics as well as highlighted the importance and content of pre-test and post-test genetic counselling, yielding a complex approach to phenotype-driven molecular diagnosis. This should significantly lower the time-to-right diagnosis as well lower the time required to complete a currently incomplete genotype-phenotype axis, which will boost the chance of establishing a new actionable diagnosis followed by therapeutical approach.
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Cox TC, Camci ED, Vora S, Luquetti DV, Turner EE. The genetics of auricular development and malformation: new findings in model systems driving future directions for microtia research. Eur J Med Genet 2014; 57:394-401. [PMID: 24880027 DOI: 10.1016/j.ejmg.2014.05.003] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 05/11/2014] [Indexed: 01/05/2023]
Abstract
Microtia is a term used to describe a wide array of phenotypic presentations of the outer ear. Although the majority of the cases are isolated in nature, much of our understanding of the causes of microtia has been driven by the identification of genes underlying syndromic forms where the anomaly co-presents with various other craniofacial and extra-craniofacial structural defects. In this review we discuss recent findings in mice deficient in Hoxa2, a key regulator of branchial arch patterning, which has necessitated a revision to the canonical model of pinna morphogenesis. The revised model will likely impact current classification schemes for microtia and, as we argue in this review, the interpretation of the developmental basis for various auricular malformations. In addition, we highlight recent studies in other mammalian species that are providing the first clues as to possible causes of at least some isolated anomalies and thus should now accelerate the search for the more elusive genetic contributions to the many isolated and non-syndromic cases of microtia. These findings, together with the application of new genome-level sequencing technologies and more thorough quantitative assessment of available mutant mouse resources, promise an exciting future for genetic studies in microtia.
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Affiliation(s)
- Timothy C Cox
- Center for Developmental Biology & Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics (Craniofacial Medicine), University of Washington, Seattle, WA, USA; Department of Oral Health Sciences, University of Washington, Seattle, WA, USA; Department of Anatomy & Developmental Biology, Monash University, Clayton, Victoria, Australia.
| | - Esra D Camci
- Center for Developmental Biology & Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA; Department of Oral Health Sciences, University of Washington, Seattle, WA, USA
| | - Siddharth Vora
- Center for Developmental Biology & Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA; Department of Oral Health Sciences, University of Washington, Seattle, WA, USA
| | - Daniela V Luquetti
- Center for Developmental Biology & Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics (Craniofacial Medicine), University of Washington, Seattle, WA, USA
| | - Eric E Turner
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA; Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA
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