@article {999, title = {DLG4-related synaptopathy: a new rare brain disorder.}, journal = {Genet Med}, volume = {23}, year = {2021}, month = {2021 05}, pages = {888-899}, abstract = {

PURPOSE: Postsynaptic density protein-95 (PSD-95), encoded by DLG4, regulates excitatory synaptic function in the brain. Here we present the clinical and genetic features of 53 patients (42 previously unpublished) with DLG4 variants.

METHODS: The clinical and genetic information were~collected through GeneMatcher collaboration. All the individuals were investigated by local clinicians and the gene variants were identified by clinical exome/genome sequencing.

RESULTS: The clinical picture was predominated by early onset global developmental delay, intellectual disability, autism spectrum disorder, and attention deficit-hyperactivity disorder, all of which point to a brain disorder. Marfanoid habitus, which was previously suggested to be a characteristic feature of DLG4-related phenotypes, was found in only nine individuals and despite some overlapping features, a distinct facial dysmorphism could not~be established. Of the 45 different DLG4 variants, 39 were predicted to lead to loss of protein function and the majority occurred de novo (four with unknown origin). The six missense variants identified were suggested to lead to structural or functional changes by protein modeling studies.

CONCLUSION: The present study shows that clinical manifestations associated with DLG4 overlap with those found in other neurodevelopmental disorders of synaptic dysfunction; thus, we designate this group of disorders as DLG4-related synaptopathy.

}, keywords = {Autism Spectrum Disorder, Brain, Brain Diseases, Disks Large Homolog 4 Protein, Humans, Intellectual Disability, Neurodevelopmental Disorders, Phenotype}, issn = {1530-0366}, doi = {10.1038/s41436-020-01075-9}, author = {Rodr{\'\i}guez-Palmero, Agust{\'\i} and Boerrigter, Melissa Maria and G{\'o}mez-Andr{\'e}s, David and Aldinger, Kimberly A and Marcos-Alcalde, {\'I}{\~n}igo and Popp, Bernt and Everman, David B and Lovgren, Alysia Kern and Arpin, Stephanie and Bahrambeigi, Vahid and Beunders, Gea and Bisgaard, Anne-Marie and Bjerregaard, V A and Bruel, Ange-Line and Challman, Thomas D and Cogn{\'e}, Benjamin and Coubes, Christine and de Man, Stella A and Denomm{\'e}-Pichon, Anne-Sophie and Dye, Thomas J and Elmslie, Frances and Feuk, Lars and Garcia-Minaur, Sixto and Gertler, Tracy and Giorgio, Elisa and Gruchy, Nicolas and Haack, Tobias B and Haldeman-Englert, Chad R and Haukanes, Bj{\o}rn Ivar and Hoyer, Juliane and Hurst, Anna C E and Isidor, Bertrand and Soller, Maria Johansson and Kushary, Sulagna and Kvarnung, Malin and Landau, Yuval E and Leppig, Kathleen A and Lindstrand, Anna and Kleinendorst, Lotte and MacKenzie, Alex and Mandrile, Giorgia and Mendelsohn, Bryce A and Moghadasi, Setareh and Morton, Jenny E and Moutton, S{\'e}bastien and M{\"u}ller, Amelie J and O{\textquoteright}Leary, Melanie and Pacio-Miguez, Marta and Palomares-Bralo, Maria and Parikh, Sumit and Pfundt, Rolph and Pode-Shakked, Ben and Rauch, Anita and Repnikova, Elena and Revah-Politi, Anya and Ross, Meredith J and Ruivenkamp, Claudia A L and Sarrazin, Elisabeth and Savatt, Juliann M and Schluter, Agatha and Sch{\"o}newolf-Greulich, Bitten and Shad, Zohra and Shaw-Smith, Charles and Shieh, Joseph T and Shohat, Motti and Spranger, Stephanie and Thiese, Heidi and Mau-Them, Frederic Tran and van Bon, Bregje and van de Burgt, Ineke and van de Laar, Ingrid M B H and van Drie, Esm{\'e}e and van Haelst, Mieke M and van Ravenswaaij-Arts, Conny M and Verdura, Edgard and Vitobello, Antonio and Waldm{\"u}ller, Stephan and Whiting, Sharon and Zweier, Christiane and Prada, Carlos E and de Vries, Bert B A and Dobyns, William B and Reiter, Simone F and G{\'o}mez-Puertas, Paulino and Pujol, Aurora and T{\"u}mer, Zeynep} } @article {576, title = {Complex Compound Inheritance of Lethal Lung Developmental Disorders Due to Disruption of the TBX-FGF Pathway.}, journal = {Am J Hum Genet}, volume = {104}, year = {2019}, month = {2019 02 07}, pages = {213-228}, abstract = {

Primary defects in lung branching morphogenesis, resulting in neonatal lethal pulmonary hypoplasias, are incompletely understood. To elucidate the pathogenetics of human lung development, we studied a unique collection of samples obtained from deceased individuals with clinically and histopathologically diagnosed interstitial neonatal lung disorders: acinar dysplasia (n = 14), congenital alveolar dysplasia (n = 2), and other lethal lung hypoplasias (n = 10). We identified rare heterozygous copy-number variant deletions or single-nucleotide variants (SNVs) involving TBX4 (n = 8 and n = 2, respectively) or FGF10 (n = 2 and n = 2, respectively) in 16/26 (61\%) individuals. In addition to TBX4, the overlapping \~{}2 Mb recurrent and nonrecurrent deletions at 17q23.1q23.2 identified in seven individuals with lung hypoplasia also remove a lung-specific enhancer region. Individuals with coding variants involving either TBX4 or FGF10 also harbored at least one non-coding SNV in the predicted lung-specific enhancer region, which was absent in 13 control individuals with the overlapping deletions but without any structural lung anomalies. The occurrence of rare coding variants involving TBX4 or FGF10 with the putative hypomorphic non-coding SNVs implies a complex compound inheritance of these pulmonary hypoplasias. Moreover, they support the importance of TBX4-FGF10-FGFR2 epithelial-mesenchymal signaling in human lung organogenesis and help to explain the histopathological continuum observed in these rare lethal developmental disorders of the lung.

}, keywords = {DNA Copy Number Variations, Female, Fibroblast Growth Factor 10, Gene Expression Regulation, Gestational Age, Humans, Infant, Newborn, Infant, Newborn, Diseases, Lung, Lung Diseases, Male, Maternal Inheritance, Organogenesis, Paternal Inheritance, Pedigree, Polymorphism, Single Nucleotide, Receptor, Fibroblast Growth Factor, Type 2, Signal Transduction, T-Box Domain Proteins}, issn = {1537-6605}, doi = {10.1016/j.ajhg.2018.12.010}, author = {Karolak, Justyna A and Vincent, Marie and Deutsch, Gail and Gambin, Tomasz and Cogn{\'e}, Benjamin and Pichon, Olivier and Vetrini, Francesco and Mefford, Heather C and Dines, Jennifer N and Golden-Grant, Katie and Dipple, Katrina and Freed, Amanda S and Leppig, Kathleen A and Dishop, Megan and Mowat, David and Bennetts, Bruce and Gifford, Andrew J and Weber, Martin A and Lee, Anna F and Boerkoel, Cornelius F and Bartell, Tina M and Ward-Melver, Catherine and Besnard, Thomas and Petit, Florence and Bache, Iben and T{\"u}mer, Zeynep and Denis-Musquer, Marie and Joubert, Madeleine and Martinovic, Jelena and B{\'e}n{\'e}teau, Claire and Molin, Arnaud and Carles, Dominique and Andr{\'e}, Gwenaelle and Bieth, Eric and Chassaing, Nicolas and Devisme, Louise and Chalabreysse, Lara and Pasquier, Laurent and Secq, V{\'e}ronique and Don, Massimiliano and Orsaria, Maria and Missirian, Chantal and Mortreux, J{\'e}r{\'e}mie and Sanlaville, Damien and Pons, Linda and K{\"u}ry, S{\'e}bastien and B{\'e}zieau, St{\'e}phane and Liet, Jean-Michel and Joram, Nicolas and Bihou{\'e}e, Tiphaine and Scott, Daryl A and Brown, Chester W and Scaglia, Fernando and Tsai, Anne Chun-Hui and Grange, Dorothy K and Phillips, John A and Pfotenhauer, Jean P and Jhangiani, Shalini N and Gonzaga-Jauregui, Claudia G and Chung, Wendy K and Schauer, Galen M and Lipson, Mark H and Mercer, Catherine L and van Haeringen, Arie and Liu, Qian and Popek, Edwina and Coban Akdemir, Zeynep H and Lupski, James R and Szafranski, Przemyslaw and Isidor, Bertrand and Le Caignec, Cedric and Stankiewicz, Pawe{\l}} }