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Szczawińska-Popłonyk A, Schwartzmann E, Chmara Z, Głukowska A, Krysa T, Majchrzycki M, Olejnicki M, Ostrowska P, Babik J. Chromosome 22q11.2 Deletion Syndrome: A Comprehensive Review of Molecular Genetics in the Context of Multidisciplinary Clinical Approach. Int J Mol Sci 2023; 24:ijms24098317. [PMID: 37176024 PMCID: PMC10179617 DOI: 10.3390/ijms24098317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/30/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
The 22q11.2 deletion syndrome is a multisystemic disorder characterized by a marked variability of phenotypic features, making the diagnosis challenging for clinicians. The wide spectrum of clinical manifestations includes congenital heart defects-most frequently conotruncal cardiac anomalies-thymic hypoplasia and predominating cellular immune deficiency, laryngeal developmental defects, midline anomalies with cleft palate and velar insufficiency, structural airway defects, facial dysmorphism, parathyroid and thyroid gland hormonal dysfunctions, speech delay, developmental delay, and neurocognitive and psychiatric disorders. Significant progress has been made in understanding the complex molecular genetic etiology of 22q11.2 deletion syndrome underpinning the heterogeneity of clinical manifestations. The deletion is caused by chromosomal rearrangements in meiosis and is mediated by non-allelic homologous recombination events between low copy repeats or segmental duplications in the 22q11.2 region. A range of genetic modifiers and environmental factors, as well as the impact of hemizygosity on the remaining allele, contribute to the intricate genotype-phenotype relationships. This comprehensive review has been aimed at highlighting the molecular genetic background of 22q11.2 deletion syndrome in correlation with a clinical multidisciplinary approach.
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Affiliation(s)
- Aleksandra Szczawińska-Popłonyk
- Department of Pediatric Pneumonology, Allergy and Clinical Immunology, Institute of Pediatrics, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Eyal Schwartzmann
- Medical Student Scientific Society, English Division, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Zuzanna Chmara
- Medical Student Scientific Society, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Antonina Głukowska
- Medical Student Scientific Society, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Tomasz Krysa
- Medical Student Scientific Society, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Maksymilian Majchrzycki
- Medical Student Scientific Society, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Maurycy Olejnicki
- Medical Student Scientific Society, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Paulina Ostrowska
- Medical Student Scientific Society, Karol Marcinkowski University of Medical Sciences, 60-572 Poznań, Poland
| | - Joanna Babik
- Gynecology and Obstetrics with Pregnancy Pathology Unit, Franciszek Raszeja Municipal Hospital, 60-834 Poznań, Poland
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Cortés-Martín J, Peñuela NL, Sánchez-García JC, Montiel-Troya M, Díaz-Rodríguez L, Rodríguez-Blanque R. Deletion Syndrome 22q11.2: A Systematic Review. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9081168. [PMID: 36010058 PMCID: PMC9406687 DOI: 10.3390/children9081168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 05/27/2023]
Abstract
22q11.2 deletion syndrome (DS 22q11.2) is a rare disease of genetic origin, caused by the loss of the q11.2 region of chromosome 22. It affects one in 4000 live newborns, and among the clinical manifestations that can occur in this syndrome are abnormalities in the parathyroid glands (producing calcium deficits), the palate, the heart and the thymus. It is also known as DiGeorge syndrome or velocardiofacial syndrome, among other names, depending on the clinical presentation of each individual. The main objective of the review was to update information on DS 22q11.2 from publications in the scientific literature. The daily activities of these patients are seriously impaired, due to the impact of the clinical manifestations. Interventions can be performed to improve their social, cognitive and emotional skills, thus increasing their ability to perform different daily activities.
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Affiliation(s)
- Jonathan Cortés-Martín
- Research Group CTS1068, Andalusia Research Plan, Junta de Andalucía, 18014 Granada, Spain; (J.C.-M.); (M.M.-T.); (L.D.-R.); (R.R.-B.)
- Department of Nursing, School of Health Sciences, University of Granada, 18016 Granada, Spain
| | | | - Juan Carlos Sánchez-García
- Research Group CTS1068, Andalusia Research Plan, Junta de Andalucía, 18014 Granada, Spain; (J.C.-M.); (M.M.-T.); (L.D.-R.); (R.R.-B.)
- Department of Nursing, School of Health Sciences, University of Granada, 18016 Granada, Spain
| | - Maria Montiel-Troya
- Research Group CTS1068, Andalusia Research Plan, Junta de Andalucía, 18014 Granada, Spain; (J.C.-M.); (M.M.-T.); (L.D.-R.); (R.R.-B.)
- Department of Nursing, School of Health Sciences, Ceuta Campus, University of Granada, 51001 Ceuta, Spain
| | - Lourdes Díaz-Rodríguez
- Research Group CTS1068, Andalusia Research Plan, Junta de Andalucía, 18014 Granada, Spain; (J.C.-M.); (M.M.-T.); (L.D.-R.); (R.R.-B.)
- Department of Nursing, School of Health Sciences, University of Granada, 18016 Granada, Spain
| | - Raquel Rodríguez-Blanque
- Research Group CTS1068, Andalusia Research Plan, Junta de Andalucía, 18014 Granada, Spain; (J.C.-M.); (M.M.-T.); (L.D.-R.); (R.R.-B.)
- San Cecilio University Hospital, 18016 Granada, Spain
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Ito M, Tokura T, Miyauchi T, Sato (Boku) A, Kimura H, Tsuchihashi H, Katayama Y. Collaboration of perioperative management in an adult patient with 22 q 11.2 deletion syndrome: A case report. Clin Case Rep 2022; 10:e05489. [PMID: 35223027 PMCID: PMC8855494 DOI: 10.1002/ccr3.5489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/30/2022] [Accepted: 02/08/2022] [Indexed: 11/20/2022] Open
Abstract
A 24‐year‐old woman diagnosed with 22 q 11.2 deletion syndrome was referred for multiple extractions. Due to the syndrome, the patient had schizophrenia, cardiac anomalies, and maxillofacial complications. This case report suggested that a multidisciplinary team approach is important for perioperative management of patients with 22 q 11.2 deletion syndrome.
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Affiliation(s)
- Mikiko Ito
- Department of Oral and Maxillofacial Surgery, School of Dentistry Aichi‐Gakuin University Nagoya Japan
| | - Tatsuya Tokura
- Department of Psychiatry Nagoya University Graduate School of Medicine Nagoya Japan
| | - Tomoya Miyauchi
- Department of Psychiatry Kachi Memorial Hospital Toyohashi Japan
| | - Aiji Sato (Boku)
- Department of Anesthesiology, School of Dentistry Aichi‐Gakuin University Nagoya Japan
| | - Hiroyuki Kimura
- Department of Psychiatry Nagoya University Graduate School of Medicine Nagoya Japan
| | - Hayami Tsuchihashi
- Department of Oral and Maxillofacial Surgery, School of Dentistry Aichi‐Gakuin University Nagoya Japan
| | - Yoshiko Katayama
- Department of Oral and Maxillofacial Surgery, School of Dentistry Aichi‐Gakuin University Nagoya Japan
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