Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients
The Beckwith–Wiedemann spectrum (BWSp) ranges from isolated lateralized overgrowth (ILO) to classic phenotypes. In this broad clinical spectrum, an epigenetic alteration on chromosome 11p15.5 can be detected. The risk for embryonal tumors is high, especially in patients with lateralized overgrowth (...
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MDPI AG
2023-03-01
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| Series: | Cancers |
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| Online Access: | https://www.mdpi.com/2072-6694/15/6/1872 |
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| author | Beyhan Tüysüz Serdar Bozlak Dilek Uludağ Alkaya Süheyla Ocak Büşra Kasap Evrim Sunamak Çifçi Ali Seker Ilhan Avni Bayhan Hilmi Apak |
| author_facet | Beyhan Tüysüz Serdar Bozlak Dilek Uludağ Alkaya Süheyla Ocak Büşra Kasap Evrim Sunamak Çifçi Ali Seker Ilhan Avni Bayhan Hilmi Apak |
| author_sort | Beyhan Tüysüz |
| collection | DOAJ |
| description | The Beckwith–Wiedemann spectrum (BWSp) ranges from isolated lateralized overgrowth (ILO) to classic phenotypes. In this broad clinical spectrum, an epigenetic alteration on chromosome 11p15.5 can be detected. The risk for embryonal tumors is high, especially in patients with lateralized overgrowth (LO). The aim of this study is to investigate epigenetic alterations in 11p15.5 and tumor risk in 87 children with LO. The methylation level of 11p15.5 was examined in the blood of all patients and in skin samples or buccal swabs from 40 patients with negative blood tests; 63.2% of patients were compatible with the ILO phenotype, 18.4% were atypical, and 18.4% were classic. The molecular diagnosis rate was 81.2% for the atypical and classic phenotypes, and 10.9% for the ILO phenotype. In patients with epigenetic alterations, LO was statistically significantly more severe than in test negatives. Tumors developed in six (6.9%) of the total 87 patients with LO; four belonged to the atypical or classical phenotype (12.5%) and two to ILO (3.5%). Three of the four patients with atypical/classical phenotypes had pUPD11, one had IC1-GOM alteration, and two ILO patients were negative. We conclude that LO patients should be monitored for tumor risk even if their epigenetic tests are negative. |
| first_indexed | 2024-03-11T06:48:35Z |
| format | Article |
| id | doaj.art-5ce2055480ea4a04af89bcc2ba078806 |
| institution | Directory Open Access Journal |
| issn | 2072-6694 |
| language | English |
| last_indexed | 2024-03-11T06:48:35Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cancers |
| spelling | doaj.art-5ce2055480ea4a04af89bcc2ba0788062023-11-17T10:08:22ZengMDPI AGCancers2072-66942023-03-01156187210.3390/cancers15061872Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth PatientsBeyhan Tüysüz0Serdar Bozlak1Dilek Uludağ Alkaya2Süheyla Ocak3Büşra Kasap4Evrim Sunamak Çifçi5Ali Seker6Ilhan Avni Bayhan7Hilmi Apak8Department of Pediatric Genetics, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Pediatric Genetics, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Pediatric Genetics, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Pediatric Hematology and Oncology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Pediatric Genetics, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Pediatric Genetics, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Orthopedics and Traumatology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyDepartment of Orthopedics and Traumatology, Baltalimani Bone Diseases Training and Research Center, University of Health Sciences, 34470 Istanbul, TurkeyDepartment of Pediatric Hematology and Oncology, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, 34098 Istanbul, TurkeyThe Beckwith–Wiedemann spectrum (BWSp) ranges from isolated lateralized overgrowth (ILO) to classic phenotypes. In this broad clinical spectrum, an epigenetic alteration on chromosome 11p15.5 can be detected. The risk for embryonal tumors is high, especially in patients with lateralized overgrowth (LO). The aim of this study is to investigate epigenetic alterations in 11p15.5 and tumor risk in 87 children with LO. The methylation level of 11p15.5 was examined in the blood of all patients and in skin samples or buccal swabs from 40 patients with negative blood tests; 63.2% of patients were compatible with the ILO phenotype, 18.4% were atypical, and 18.4% were classic. The molecular diagnosis rate was 81.2% for the atypical and classic phenotypes, and 10.9% for the ILO phenotype. In patients with epigenetic alterations, LO was statistically significantly more severe than in test negatives. Tumors developed in six (6.9%) of the total 87 patients with LO; four belonged to the atypical or classical phenotype (12.5%) and two to ILO (3.5%). Three of the four patients with atypical/classical phenotypes had pUPD11, one had IC1-GOM alteration, and two ILO patients were negative. We conclude that LO patients should be monitored for tumor risk even if their epigenetic tests are negative.https://www.mdpi.com/2072-6694/15/6/187211p15 methylation defectsBeckwith–Wiedemann spectrumlateralized overgrowthWilms tumorembryonal tumors |
| spellingShingle | Beyhan Tüysüz Serdar Bozlak Dilek Uludağ Alkaya Süheyla Ocak Büşra Kasap Evrim Sunamak Çifçi Ali Seker Ilhan Avni Bayhan Hilmi Apak Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients Cancers 11p15 methylation defects Beckwith–Wiedemann spectrum lateralized overgrowth Wilms tumor embryonal tumors |
| title | Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients |
| title_full | Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients |
| title_fullStr | Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients |
| title_full_unstemmed | Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients |
| title_short | Investigation of 11p15.5 Methylation Defects Associated with Beckwith-Wiedemann Spectrum and Embryonic Tumor Risk in Lateralized Overgrowth Patients |
| title_sort | investigation of 11p15 5 methylation defects associated with beckwith wiedemann spectrum and embryonic tumor risk in lateralized overgrowth patients |
| topic | 11p15 methylation defects Beckwith–Wiedemann spectrum lateralized overgrowth Wilms tumor embryonal tumors |
| url | https://www.mdpi.com/2072-6694/15/6/1872 |
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