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FOXC2 Disease Mutations Identified in Lymphedema Distichiasis Patients Impair Transcriptional Activity and Cell Proliferation
Open AccessArticle

TIE1 as a Candidate Gene for Lymphatic Malformations with or without Lymphedema

Department of Vascular Rehabilitation, San Giovanni Battista Hospital, 00148 Rome, Italy
Division of Rehabilitation Medicine, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, 60126 Ancona, Italy
Department of Biology, Faculty of Natural Sciences, University of Ss. Cyril and Methodius In Trnava, 91701 Trnava, Slovakia
MAGI Euregio, 39100 Bolzano, BZ, Italy
Department of Medical Genetics, Faculty of Medicine, Erciyes University, 38039 Kayseri, Turkey
MAGI-Balkan, 1019 Tirana, Albania
Innovative Informatica Technologies, Hyderabad 500 049, India
EBTNA-Lab, 38068 Rovereto, TN, Italy
MAGI’s Lab, 38068 Rovereto, TN, Italy
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(18), 6780;
Received: 28 July 2020 / Revised: 8 September 2020 / Accepted: 8 September 2020 / Published: 16 September 2020
(This article belongs to the Special Issue Molecular Research on Lymphedema)
TIE1 is a cell surface protein expressed in endothelial cells. Involved in angiogenesis and lymphangiogenesis, including morphogenesis of lymphatic valves, TIE1 is important for lymphatic system functional integrity. The main purpose of this study was to identify different variants in the TIE1 gene that could be associated with lymphatic malformations or dysfunction and predisposition for lymphedema. In a cohort of 235 Italian lymphedema patients, who tested negative for variants in known lymphedema genes, we performed a further test for new candidate genes, including TIE1. Three probands carried different variants in TIE1. Two of these segregated with lymphedema or lymphatic dysfunction in familial cases. Variants in TIE1 could contribute to the onset of lymphedema. On the basis of our findings, we propose TIE1 as a candidate gene for comprehensive genetic testing of lymphedema. View Full-Text
Keywords: TIE1; NGS; lymphedema; genetic diagnostics TIE1; NGS; lymphedema; genetic diagnostics
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Michelini, S.; Ricci, M.; Veselenyiova, D.; Kenanoglu, S.; Kurti, D.; Baglivo, M.; Fiorentino, A.; Basha, S.H.; Priya, S.; Serrani, R.; Krajcovic, J.; Dundar, M.; Dautaj, A.; Bertelli, M. TIE1 as a Candidate Gene for Lymphatic Malformations with or without Lymphedema. Int. J. Mol. Sci. 2020, 21, 6780.

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