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Vinciguerra M, Leto F, Cassarà F, Tartaglia V, Malacarne M, Coviello D, Cigna V, Orlandi E, Picciotto F, Cucinella G, Salzano E, Piccione M, Maggio A, Giambona A. Incidental Detection of a Chromosomal Aberration by Array-CGH in an Early Prenatal Diagnosis for Monogenic Disease on Coelomic Fluid. LIFE (BASEL, SWITZERLAND) 2022; 13:life13010020. [PMID: 36675969 PMCID: PMC9863495 DOI: 10.3390/life13010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/18/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Turner syndrome is a rare genetic condition in which a female is partly or completely missing an X chromosome. Signs and symptoms vary among those affected. In fetuses that survive at birth and without congenital malformations, the prognosis is usually positive, but it has high lethality in utero, especially in the first trimester of pregnancy. METHODS We report a case of monosomy X detected during a prenatal diagnosis for beta thalassemia on coelomic fluid (CF) at the VIII week of gestation. Beta globin gene analysis, whole genome amplification (WGA), quantitative fluorescent PCR and array comparative genomic hybridization (array-CGH) were performed on DNA extracted from CF. RESULTS A monoallelic pattern of all Short Tandem Repeats mapped on the X chromosome was found and array-CGH performed on WGA from a few fetal erythroblasts confirmed monosomy X. CONCLUSION This report underlines the importance of an early prenatal diagnosis and the countless potentialities of array-CGH that could make definition of molecular karyotype possible from a few fetal cells, unlike conventional cytogenetic techniques that require a greater cellular content. This is the first report of a molecular karyotype obtained from two cells selected by micromanipulation of CF and defined at such an early gestational age.
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Affiliation(s)
- Margherita Vinciguerra
- Unit of Molecular Diagnosis of Rare Hematological Diseases, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
- Correspondence: (M.V.); (A.G.); Tel.: +39-091-680-2770
| | - Filippo Leto
- Unit of Molecular Diagnosis of Rare Hematological Diseases, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Filippo Cassarà
- Unit of Molecular Diagnosis of Rare Hematological Diseases, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Viviana Tartaglia
- Unit of Molecular Diagnosis of Rare Hematological Diseases, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Michela Malacarne
- Laboratory of Human Genetics, Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Domenico Coviello
- Laboratory of Human Genetics, Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Valentina Cigna
- Unit of Fetal Medicine and Prenatal Diagnosis, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Emanuela Orlandi
- Unit of Fetal Medicine and Prenatal Diagnosis, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Francesco Picciotto
- Unit of Fetal Medicine and Prenatal Diagnosis, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Gaspare Cucinella
- Unit of Fetal Medicine and Prenatal Diagnosis, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Emanuela Salzano
- Medical Genetics Unit, Azienda Ospedaliera Ospedali Riuniti Villa Sofia Cervello, 90146 Palermo, Italy
| | - Maria Piccione
- Medical Genetics Unit, Azienda Ospedaliera Ospedali Riuniti Villa Sofia Cervello, 90146 Palermo, Italy
| | - Aurelio Maggio
- Unit of Hematology for Rare Diseases of Blood and Blood-Forming Organs, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
| | - Antonino Giambona
- Unit of Molecular Diagnosis of Rare Hematological Diseases, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, 90146 Palermo, Italy
- Correspondence: (M.V.); (A.G.); Tel.: +39-091-680-2770
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