No evidence of HAND2 involvement in nonsyndromic cleft lip with or without cleft palate
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Marcella Martinelli & Ambra Girardi & Francesca Farinella & Francesco Carinci & Furio Pezzetti & Elisabetta Caramelli & Luca Scapoli
- چاپ و سال / کشور: 2011
Description
Craniofacial morphogenesis is determined by multistep processes involving signalling molecules and transcription factors, which are organised into highly coordinated pathways. Derailment from this intricate network can lead to congenital malformations. Cells migrate from neural crests to populate different structures, such as branchial arches, involved in embryonal orofacial development. The EDN1 pathway is involved in branchial arch development. Gene knockout and knockdown experiments on EDN1 or its downstream effector dHAND resulted in mice that were characterised by craniofacial defects and cleft palate. Our aim was to evaluate whether the transcription factor HAND2 could be implicated in nonsyndromic cleft lip with or without cleft palate (CL/P) aetiology. A sample study composed of 39 multiplex Italian pedigrees was enrolled to test linkage between two microsatellite flanking HAND2 locus and CL/P. No evidence of linkage between HAND2 and CL/P was obtained. Indeed, formal levels of exclusion were obtained with different inheritance models. Investigation results did not support a role of HAND2 in CL/P aetiology. Nevertheless a minor contribute of the gene in clefting could not be ruled out
Clin Oral Invest DOI 10.1007/s00784-011-0539-6 Received: 29 January 2010 / Accepted: 24 February 2011
