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1. Once-weekly TransCon CNP (navepegritide) in children with achondroplasia (ACcomplisH): a phase 2, multicentre, randomised, double-blind, placebo-controlled, dose-escalation trial

Author

Savarirayan, Ravi, Hoernschemeyer, Daniel G., Ljungberg, Merete, Zarate, Yuri A., Bacino, Carlos A., Bober, Michael B., Legare, Janet M., Högler, Wolfgang, Quattrin, Teresa, Abuzzahab, M. Jennifer, Hofman, Paul L., White, Klane K., Ma, Nina S., Schnabel, Dirk, Sousa, Sérgio B., Mao, Meng, Smith, Alden, Chakraborty, Mukta, Giwa, Adebola, Winding, Bent, Volck, Birgitte, Shu, Aimee D., and McDonnell, Ciara

Published
2023
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3. The Liberfarb syndrome, a multisystem disorder affecting eye, ear, bone, and brain development, is caused by a founder pathogenic variant in the PISD gene

Author

Peter, Virginie G., Quinodoz, Mathieu, Pinto-Basto, Jorge, Sousa, Sergio B., Di Gioia, Silvio Alessandro, Soares, Gabriela, Ferraz Leal, Gabriela, Silva, Eduardo D., Pescini Gobert, Rosanna, Miyake, Noriko, Matsumoto, Naomichi, Engle, Elizabeth C., Unger, Sheila, Shapiro, Frederic, Superti-Furga, Andrea, Rivolta, Carlo, and Campos-Xavier, Belinda

Published
2019
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4. An oligodendrocyte silencer element underlies the pathogenic impact of lamin B1 structural variants

Author

Nmezi, Bruce, primary, Bey, Guillermo Rodriguez, additional, Oranburg, Talia DeFrancesco, additional, Dudnyk, Kseniia, additional, Morgan, Samantha, additional, Herdman, Nathan, additional, Jacko, Anastasia, additional, Rubio, Sandy, additional, Alcocer, Emanuel Loeza, additional, Kofler, Julia, additional, Kim, Dongkyeong, additional, Rankin, Julia, additional, Kivuva, Emma, additional, Gutowski, Nicholas, additional, Schon, Katherine, additional, van den Ameele, Jelle, additional, Chinnery, Patrick F, additional, Sousa, Sergio B, additional, Palavra, Felipe, additional, Toro, Camilo, additional, Pinto e Vairo, Filippo, additional, Saute, Jonas, additional, Pan, Lisa, additional, Alturkustani, Murad, additional, Hammond, Robert, additional, Gros-Louis, Francois, additional, Gold, Michael, additional, Park, Yungki, additional, Bernard, Genevieve, additional, Raininko, Raili, additional, Zhou, Jian, additional, Hainer, Sarah, additional, and Padiath, Quasar, additional

Published
2023
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5. The clinical and molecular spectrum of the KDM6B-related neurodevelopmental disorder

Author

Rots, Dmitrijs, primary, Jakub, Taryn E., additional, Keung, Crystal, additional, Jackson, Adam, additional, Banka, Siddharth, additional, Pfundt, Rolph, additional, de Vries, Bert B.A., additional, van Jaarsveld, Richard H., additional, Hopman, Saskia M.J., additional, van Binsbergen, Ellen, additional, Valenzuela, Irene, additional, Hempel, Maja, additional, Bierhals, Tatjana, additional, Kortüm, Fanny, additional, Lecoquierre, Francois, additional, Goldenberg, Alice, additional, Hertz, Jens Michael, additional, Andersen, Charlotte Brasch, additional, Kibæk, Maria, additional, Prijoles, Eloise J., additional, Stevenson, Roger E., additional, Everman, David B., additional, Patterson, Wesley G., additional, Meng, Linyan, additional, Gijavanekar, Charul, additional, De Dios, Karl, additional, Lakhani, Shenela, additional, Levy, Tess, additional, Wagner, Matias, additional, Wieczorek, Dagmar, additional, Benke, Paul J., additional, Lopez Garcia, María Soledad, additional, Perrier, Renee, additional, Sousa, Sergio B., additional, Almeida, Pedro M., additional, Simões, Maria José, additional, Isidor, Bertrand, additional, Deb, Wallid, additional, Schmanski, Andrew A., additional, Abdul-Rahman, Omar, additional, Philippe, Christophe, additional, Bruel, Ange-Line, additional, Faivre, Laurence, additional, Vitobello, Antonio, additional, Thauvin, Christel, additional, Smits, Jeroen J., additional, Garavelli, Livia, additional, Caraffi, Stefano G., additional, Peluso, Francesca, additional, Davis-Keppen, Laura, additional, Platt, Dylan, additional, Royer, Erin, additional, Leeuwen, Lisette, additional, Sinnema, Margje, additional, Stegmann, Alexander P.A., additional, Stumpel, Constance T.R.M., additional, Tiller, George E., additional, Bosch, Daniëlle G.M., additional, Potgieter, Stephanus T., additional, Joss, Shelagh, additional, Splitt, Miranda, additional, Holden, Simon, additional, Prapa, Matina, additional, Foulds, Nicola, additional, Douzgou, Sofia, additional, Puura, Kaija, additional, Waltes, Regina, additional, Chiocchetti, Andreas G., additional, Freitag, Christine M., additional, Satterstrom, F. Kyle, additional, De Rubeis, Silvia, additional, Buxbaum, Joseph, additional, Gelb, Bruce D., additional, Branko, Aleksic, additional, Kushima, Itaru, additional, Howe, Jennifer, additional, Scherer, Stephen W., additional, Arado, Alessia, additional, Baldo, Chiara, additional, Patat, Olivier, additional, Bénédicte, Demeer, additional, Lopergolo, Diego, additional, Santorelli, Filippo M., additional, Haack, Tobias B., additional, Dufke, Andreas, additional, Bertrand, Miriam, additional, Falb, Ruth J., additional, Rieß, Angelika, additional, Krieg, Peter, additional, Spranger, Stephanie, additional, Bedeschi, Maria Francesca, additional, Iascone, Maria, additional, Josephi-Taylor, Sarah, additional, Roscioli, Tony, additional, Buckley, Michael F., additional, Liebelt, Jan, additional, Dagli, Aditi I., additional, Aten, Emmelien, additional, Hurst, Anna C.E., additional, Hicks, Alesha, additional, Suri, Mohnish, additional, Aliu, Ermal, additional, Naik, Sunil, additional, Sidlow, Richard, additional, Coursimault, Juliette, additional, Nicolas, Gaël, additional, Küpper, Hanna, additional, Petit, Florence, additional, Ibrahim, Veyan, additional, Top, Deniz, additional, Di Cara, Francesca, additional, Louie, Raymond J., additional, Stolerman, Elliot, additional, Brunner, Han G., additional, Vissers, Lisenka E.L.M., additional, Kramer, Jamie M., additional, and Kleefstra, Tjitske, additional

Published
2023
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6. RSPO2 inhibition of RNF43 and ZNRF3 governs limb development independently of LGR4/5/6

Author

Szenker-Ravi, Emmanuelle, Altunoglu, Umut, Leushacke, Marc, Bosso-Lefèvre, Célia, Khatoo, Muznah, Thi Tran, Hong, Naert, Thomas, Noelanders, Rivka, Hajamohideen, Amin, Beneteau, Claire, de Sousa, Sergio B., Karaman, Birsen, Latypova, Xenia, Başaran, Seher, Yücel, Esra Börklü, Tan, Thong Teck, Vlaminck, Lena, Nayak, Shalini S., Shukla, Anju, Girisha, Katta Mohan, Le Caignec, Cédric, Soshnikova, Natalia, Uyguner, Zehra Oya, Vleminckx, Kris, Barker, Nick, Kayserili, Hülya, and Reversade, Bruno

Published
2018
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7. Evolution of clinical and radiological presentations of spondyloepimetaphyseal dysplasia, RPL13 ‐related: Description of 11 further cases

Author

Díaz‐González, Francisca, primary, Parrón‐Pajares, Manuel, additional, Lucas‐Castro, Elsa, additional, Modamio‐HØybjØr, Silvia, additional, Sentchordi‐Montané, Lucia, additional, Seidel, Verónica, additional, Prieto, Pablo, additional, Tarraso‐Urios, Guillermo, additional, Codina‐Sola, Marta, additional, Cueto‐González, Anna M., additional, Ballesta‐Martínez, Mary J., additional, Santos‐Simarro, Fernando, additional, Sousa, Sergio B., additional, and Heath, Karen E., additional

Published
2023
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8. Epigenomic and phenotypic characterization of DEGCAGS syndrome

Author

Karimi, Karim, Weis, Denisa, Aukrust, Ingvild, Hsieh, Tzung-Chien, Horackova, Marie, Paulsen, Julie, Mendoza Londono, Roberto, Dupuis, Lucie, Dickson, Megan, Lesman, Hellen, Lau, Tracy, Murphy, David, Hama Salih, Khalid, Al-Musawi, Bassam M. S., Al-Obaidi, Ruqayah G. Y., Rydzanicz, Malgorzata, Biela, Mateus, Santos, Mafalda Saraiva, Aldeeri, Abdulrahman, Gazda, Hanna T., Pais, Lynn, Shril, Shirlee, Døllner, Henrik, Bartakke, Sandip, Laccone, Franco, Soltysova, Andrea, Kitzler, Thomas, Soliman, Neveen A., Relator, Raissa, Levy, Michael A., Kerkhof, Jennifer, Rzasa, Jessica, Houlden, Henry, Pilshofer, Gabriela V., Jobst-Schwan, Tilman, Hildebrandt, Friedhelm, Sousa, Sergio B., Maroofian, Reza, Yu, Timothy W., Krawitz, Peter, Sadikovic, Bekim, and Douzgou Houge, Sofia

Abstract

Developmental Delay with Gastrointestinal, Cardiovascular, Genitourinary, and Skeletal Abnormalities syndrome (DEGCAGS, MIM #619488) is caused by biallelic, loss-of-function (LoF) ZNF699variants, and is characterized by variable neurodevelopmental disability, discordant organ anomalies among full siblings and infant mortality. ZNF699encodes a KRAB zinc finger protein of unknown function. We aimed to investigate the genotype-phenotype spectrum of DEGCAGS and the possibility of a diagnostic DNA methylation episignature, to facilitate the diagnosis of a highly variable condition lacking pathognomonic clinical findings. We collected data on 30 affected individuals (12 new). GestaltMatcher analyzed fifty-three facial photographs from five individuals. In nine individuals, methylation profiling of blood-DNA was performed, and a classification model was constructed to differentiate DEGCAGS from controls. We expand the ZNF699-related molecular spectrum and show that biallelic, LoF, ZNF699variants cause unique clinical findings with age-related presentation and a similar facial gestalt. We also identified a robust episignature for DEGCAGS syndrome. DEGCAGS syndrome is a clinically variable recessive syndrome even among siblings with a distinct methylation episignature which can be used as a screening, diagnostic and classification tool for ZNF699variants. Analysis of differentially methylated regions suggested an effect on genes potentially implicated in the syndrome’s pathogenesis.

Published
2024
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10. Biallelic Variants in the Ectonucleotidase ENTPD1 Cause a Complex Neurodevelopmental Disorder with Intellectual Disability, Distinct White Matter Abnormalities, and Spastic Paraplegia

Author

Calame, Daniel G., primary, Herman, Isabella, additional, Maroofian, Reza, additional, Marshall, Aren E., additional, Donis, Karina Carvalho, additional, Fatih, Jawid M., additional, Mitani, Tadahiro, additional, Du, Haowei, additional, Grochowski, Christopher M., additional, Sousa, Sergio B., additional, Gijavanekar, Charul, additional, Bakhtiari, Somayeh, additional, Ito, Yoko A., additional, Rocca, Clarissa, additional, Hunter, Jill V., additional, Sutton, V. Reid, additional, Emrick, Lisa T., additional, Boycott, Kym M., additional, Lossos, Alexander, additional, Fellig, Yakov, additional, Prus, Eugenia, additional, Kalish, Yosef, additional, Meiner, Vardiella, additional, Suerink, Manon, additional, Ruivenkamp, Claudia, additional, Muirhead, Kayla, additional, Saadi, Nebal W., additional, Zaki, Maha S., additional, Bouman, Arjan, additional, Barakat, Tahsin Stefan, additional, Skidmore, David L., additional, Osmond, Matthew, additional, Silva, Thiago Oliveira, additional, Murphy, David, additional, Karimiani, Ehsan Ghayoor, additional, Jamshidi, Yalda, additional, Jaddoa, Asaad Ghanim, additional, Tajsharghi, Homa, additional, Jin, Sheng Chih, additional, Abbaszadegan, Mohammad Reza, additional, Ebrahimzadeh‐Vesal, Reza, additional, Hosseini, Susan, additional, Alavi, Shahryar, additional, Bahreini, Amir, additional, Zarean, Elahe, additional, Salehi, Mohammad Mehdi, additional, Al‐Sannaa, Nouriya Abbas, additional, Zifarelli, Giovanni, additional, Bauer, Peter, additional, Robson, Simon C., additional, Coban‐Akdemir, Zeynep, additional, Travaglini, Lorena, additional, Nicita, Francesco, additional, Jhangiani, Shalini N., additional, Gibbs, Richard A., additional, Posey, Jennifer E., additional, Kruer, Michael C., additional, Kernohan, Kristin D., additional, Morales Saute, Jonas A., additional, Houlden, Henry, additional, Vanderver, Adeline, additional, Elsea, Sarah H., additional, Pehlivan, Davut, additional, Marafi, Dana, additional, and Lupski, James R., additional

Published
2022
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12. Author Correction: RSPO2 inhibition of RNF43 and ZNRF3 governs limb development independently of LGR4/5/6

Author

Szenker-Ravi, Emmanuelle, Altunoglu, Umut, Leushacke, Marc, Bosso-Lefèvre, Célia, Khatoo, Muznah, Thi Tran, Hong, Naert, Thomas, Noelanders, Rivka, Hajamohideen, Amin, Beneteau, Claire, de Sousa, Sergio B., Karaman, Birsen, Latypova, Xenia, Başaran, Seher, Yücel, Esra Börklü, Tan, Thong Teck, Vlaminck, Lena, Nayak, Shalini S., Shukla, Anju, Girisha, Katta Mohan, Le Caignec, Cédric, Soshnikova, Natalia, Uyguner, Zehra Oya, Vleminckx, Kris, Barker, Nick, Kayserili, Hülya, and Reversade, Bruno

Published
2018
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13. Complex movement disorder in a patient with heterozygous YY1 mutation (Gabriele‐de Vries syndrome)

Author

Carminho‐Rodrigues, Maria Teresa, primary, Steel, Dora, additional, Sousa, Sergio B., additional, Brandt, Gregor, additional, Guipponi, Michel, additional, Laurent, Sacha, additional, Fokstuen, Siv, additional, Moren, Aurea, additional, Zacharia, André, additional, Dirren, Elisabeth, additional, Oliveira, Renata, additional, Kurian, Manju A., additional, Burkhard, Pierre R., additional, and Bally, Julien F., additional

Published
2020
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14. Autosomal-Recessive Mutations in MESD Cause Osteogenesis Imperfecta

Author

Moosa, Shahida, Yamamoto, Guilherme L., Garbes, Lutz, Keupp, Katharina, Beleza-Meireles, Ana, Moreno, Carolina Araujo, Valadares, Eugenia Ribeiro, de Sousa, Sergio B., Maia, Sofia, Saraiva, Jorge, Honjo, Rachel S., Kim, Chong Ae, de Menezes, Hamilton Cabral, Lausch, Ekkehart, Lorini, Pablo Villavicencio, Lamounier, Arsonval, Jr., Bezerra Carniero, Tulio Canella, Giunta, Cecilia, Rohrbach, Marianne, Janner, Marco, Semler, Oliver, Beleggia, Filippo, Li, Yun, Yigit, Goekhan, Reintjes, Nadine, Altmueller, Janine, Nuernberg, Peter, Cavalcanti, Denise P., Zabel, Bernhard, Warman, Matthew L., Bertola, Debora R., Wollnik, Bernd, Netzer, Christian, Moosa, Shahida, Yamamoto, Guilherme L., Garbes, Lutz, Keupp, Katharina, Beleza-Meireles, Ana, Moreno, Carolina Araujo, Valadares, Eugenia Ribeiro, de Sousa, Sergio B., Maia, Sofia, Saraiva, Jorge, Honjo, Rachel S., Kim, Chong Ae, de Menezes, Hamilton Cabral, Lausch, Ekkehart, Lorini, Pablo Villavicencio, Lamounier, Arsonval, Jr., Bezerra Carniero, Tulio Canella, Giunta, Cecilia, Rohrbach, Marianne, Janner, Marco, Semler, Oliver, Beleggia, Filippo, Li, Yun, Yigit, Goekhan, Reintjes, Nadine, Altmueller, Janine, Nuernberg, Peter, Cavalcanti, Denise P., Zabel, Bernhard, Warman, Matthew L., Bertola, Debora R., Wollnik, Bernd, and Netzer, Christian

Abstract

Osteogenesis imperfecta (OI) comprises a genetically heterogeneous group of skeletal fragility diseases. Here, we report on five independent families with a progressively deforming type of OI, in whom we identified four homozygous truncation or frameshift mutations in MESD. Affected individuals had recurrent fractures and at least one had oligodontia. MESD encodes an endoplasmic reticulum (ER) chaperone protein for the canonical Wingless-related integration site (WNT) signaling receptors LRP5 and LRP6. Because complete absence of MESD causes embryonic lethality in mice, we hypothesized that the OI-associated mutations are hypomorphic alleles since these mutations occur downstream of the chaperone activity domain but upstream of ER-retention domain. This would be consistent with the clinical phenotypes of skeletal fragility and oligodontia in persons deficient for LRP5 and LRP6, respectively. When we expressed wild-type (WT) and mutant MESD in HEK293T cells, we detected WT MESD in cell lysate but not in conditioned medium, whereas the converse was true for mutant MESD. We observed that both WT and mutant MESD retained the ability to chaperone LRP5. Thus, 01-associated MESD mutations produce hypomorphic alleles whose failure to remain within the ER significantly reduces but does not completely eliminate LRP5 and LRP6 trafficking. Since these individuals have no eye abnormalities (which occur in individuals completely lacking LRP5) and have neither limb nor brain patterning defects (both of which occur in mice completely lacking LRP6), we infer that bone mass accrual and dental patterning are more sensitive to reduced canonical WNT signaling than are other developmental processes. Biologic agents that can increase LRP5 and LRP6-mediated WNT signaling could benefit individuals with MESD-associated OI.

Published
2019

15. American Journal of Medical Genetics Part A

Author

Piard, Juliette, Lespinasse, James, Vlckova, Marketa, Mensah, Martin A., Iurian, Sorin, Simandlova, Martina, Malikova, Marcela, Bartsch, Oliver, Rossi, Massimiliano, Lenoir, Marion, Nugues, Frederique, Mundlos, Stefan, Kornak, Uwe, Stanier, Philip, Sousa, Sergio B., and Van Maldergem, Lionel

Subjects
PTDSS1, hyperostotic skeletal dysplasia, cutis laxa, 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten, Lenz–Majewski syndrome
Abstract

The cutis laxa syndromes are multisystem disorders that share loose redundant inelastic and wrinkled skin as a common hallmark clinical feature. The underlying molecular defects are heterogeneous and 13 different genes have been involved until now, all of them being implicated in elastic fiber assembly. We provide here molecular and clinical characterization of three unrelated patients with a very rare phenotype associating cutis laxa, facial dysmorphism, severe growth retardation, hyperostotic skeletal dysplasia, and intellectual disability. This disorder called Lenz–Majewski syndrome (LMS) is associated with gain of function mutations in PTDSS1, encoding an enzyme involved in phospholipid biosynthesis. This report illustrates that LMS is an unequivocal cutis laxa syndrome and expands the clinical and molecular spectrum of this group of disorders. In the neonatal period, brachydactyly and facial dysmorphism are two early distinctive signs, later followed by intellectual disability and hyperostotic skeletal dysplasia with severe dwarfism allowing differentiation of this condition from other cutis laxa phenotypes. Further studies are needed to understand the link between PTDSS1 and extra cellular matrix assembly.

Published
2018
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16. Heterozygous aggrecan variants are associated with short stature and brachydactyly: Description of 16 probands and a review of the literature

Author

Sentchordi-Montané, Lucía, primary, Aza-Carmona, Miriam, additional, Benito-Sanz, Sara, additional, Barreda- Bonis, Ana C., additional, Sánchez-Garre, Consuelo, additional, Prieto-Matos, Pablo, additional, Ruiz-Ocaña, Pablo, additional, Lechuga-Sancho, Alfonso, additional, Carcavilla-Urquí, Atilano, additional, Mulero-Collantes, Inés, additional, Martos-Moreno, Gabriel A., additional, del Pozo, Angela, additional, Vallespín, Elena, additional, Offiah, Amaka, additional, Parrón-Pajares, Manuel, additional, Dinis, Isabel, additional, Sousa, Sergio B., additional, Ros-Pérez, Purificación, additional, González-Casado, Isabel, additional, and Heath, Karen E., additional

Published
2018
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17. Phenotype and genotype in Nicolaides-Baraitser syndrome

Author

Sousa, Sergio B., Hennekam, Raoul C., University of Zurich, Sousa, Sérgio B, ANS - Amsterdam Neuroscience, APH - Amsterdam Public Health, Human Genetics, ACS - Amsterdam Cardiovascular Sciences, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, and Other Research

Subjects
2716 Genetics (clinical), 1311 Genetics, 10039 Institute of Medical Genetics, Genetics, 570 Life sciences, biology, 610 Medicine & health, Genetics(clinical)
Abstract

Nicolaides-Baraitser syndrome (NCBRS) is an intellectual disability (ID)/multiple congenital anomalies syndrome caused by non-truncating mutations in the ATPase region of SMARCA2, which codes for one of the two alternative catalytic subunits of the BAF chromatin remodeling complex. We analyzed 61 molecularly confirmed cases, including all previously reported patients (n=47) and 14 additional unpublished individuals. NCBRS is clinically and genetically homogeneous. The cardinal features (ID, short stature, microcephaly, typical face, sparse hair, brachydactyly, prominent interphalangeal joints, behavioral problems and seizures), are almost universally present. There is variability however, as ID can range from severe to mild, and sparse hair may be present only in certain age groups. There may be a correlation between the severity of the ID and presence of seizures, absent speech, short stature and microcephaly. SMARCA2 mutations causing NCBRS are likely to act through a dominant-negative effect. There may be some genotype-phenotype correlations (mutations at domain VI with severe ID and seizures; mutations affecting residues Pro883, Leu946, and Ala1201 with mild phenotypes) but numbers are still too small to draw definitive conclusions. (c) 2014 Wiley Periodicals, Inc.

Published
2014

19. Loss-of-Function Mutations in PTPN11 Cause Metachondromatosis, But Not Ollier Disease or Maffucci Syndrome

Author

Campos-Xavier, Belinda, Superti-Furga, Andrea, Ikegawa, Shiro, Cormier-Daire, Valerie, Pansuriya, Twinkal C., Savarirayan, Ravi, Andreucci, Elena, Vikkula, Miikka, Garavelli, Livia, Pottinger, Caroline, Ogino, Toshihiko, Sakai, Akinori, Regazzoni, Bianca M., Wuyts, Wim, Sangiorgi, Luca, Pedrini, Elena, Bowen, Margot E., Kurek, Kyle Christopher, Boyden, Eric David, Holm, Ingrid Adele, Bonafé, Luisa, Bovée, Judith V., de Sousa, Sérgio b., Zhu, Meijun, Kozakewich, Harry Peter Wolodymir, Kasser, James R., Seidman, Jonathan G., and Warman, Matthew L.

Subjects
biology, genetics, cancer genetics, human genetics, molecular genetics, gene identification and analysis, medicine, clinical genetics, autosomal dominant, pediatrics, pediatric oncology, pediatric orthopedics
Abstract

Metachondromatosis (MC) is a rare, autosomal dominant, incompletely penetrant combined exostosis and enchondromatosis tumor syndrome. MC is clinically distinct from other multiple exostosis or multiple enchondromatosis syndromes and is unlinked to \(EXT1\) and \(EXT2\), the genes responsible for autosomal dominant multiple osteochondromas (MO). To identify a gene for MC, we performed linkage analysis with high-density SNP arrays in a single family, used a targeted array to capture exons and promoter sequences from the linked interval in 16 participants from 11 MC families, and sequenced the captured DNA using high-throughput parallel sequencing technologies. DNA capture and parallel sequencing identified heterozygous putative loss-of-function mutations in \(PTPN11\) in 4 of the 11 families. Sanger sequence analysis of \(PTPN11\) coding regions in a total of 17 MC families identified mutations in 10 of them (5 frameshift, 2 nonsense, and 3 splice-site mutations). Copy number analysis of sequencing reads from a second targeted capture that included the entire \(PTPN11\) gene identified an additional family with a 15 kb deletion spanning exon 7 of \(PTPN11\). Microdissected MC lesions from two patients with \(PTPN11\) mutations demonstrated loss-of-heterozygosity for the wild-type allele. We next sequenced \(PTPN11\) in DNA samples from 54 patients with the multiple enchondromatosis disorders Ollier disease or Maffucci syndrome, but found no coding sequence \(PTPN11\) mutations. We conclude that heterozygous loss-of-function mutations in \(PTPN11\) are a frequent cause of MC, that lesions in patients with MC appear to arise following a ‘‘second hit,’’ that MC may be locus heterogeneous since 1 familial and 5 sporadically occurring cases lacked obvious disease-causing \(PTPN11\) mutations, and that \(PTPN11\) mutations are not a common cause of Ollier disease or Maffucci syndrome.

Published
2011
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20. The Liberfarb syndrome, a multisystem disorder affecting eye, ear, bone, and brain development, is caused by a founder pathogenic variant in the PISD gene

Author

Peter, Virginie G., Quinodoz, Mathieu, Pinto-Basto, Jorge, Sousa, Sergio B., Di Gioia, Silvio Alessandro, Soares, Gabriela, Ferraz Leal, Gabriela, Silva, Eduardo D., Pescini Gobert, Rosanna, Miyake, Noriko, Matsumoto, Naomichi, Engle, Elizabeth C., Unger, Sheila, Shapiro, Frederic, Superti-Furga, Andrea, Rivolta, Carlo, and Campos-Xavier, Belinda

Subjects
3. Good health

21. Loss of the BMP Antagonist, SMOC-1, Causes Ophthalmo-Acromelic (Waardenburg Anophthalmia) Syndrome in Humans and Mice

Author

Kishan Sokhi, Jacqueline Ramsay, Tanya Bardakjian, Adele Schneider, Nursel Elcioglu, Raoul C.M. Hennekam, C. Nur Semerci, Ferda Ozkinay, Joe Rainger, David Sexton, Andrea Superti Furga, Anita Saponari, Lina Ramos, Ellen van Beusekom, Malcolm E. Fisher, Gabriele Gillessen-Kaesbach, Anita Wischmeijer, Ian J. Jackson, Sérgio B. Sousa, Hans van Bokhoven, Rainer Koenig, Lihadh Al-Gazali, Paul Perry, Peter Branney, Louise S. Bicknell, Harris Morrison, Livia Garavelli, Dagmar Wieczorek, André Mégarbané, Rosanna Pallotta, Han G. Brunner, Lisa McKie, Saemah Nuzhat Zafar, Philippe Gautier, Ayesha Khan, David R. FitzPatrick, ANS - Amsterdam Neuroscience, APH - Amsterdam Public Health, Paediatrics, Ege Üniversitesi, Rainger, Joe, van Beusekom, Ellen, Ramsay, Jacqueline K., McKie, Lisa, Al-Gazali, Lihadh, Pallotta, Rosanna, Saponari, Anita, Branney, Peter, Fisher, Malcolm, Morrison, Harris, Bicknell, Louise, Gautier, Philippe, Perry, Paul, Sokhi, Kishan, Sexton, David, Bardakjian, Tanya M., Schneider, Adele S., Elcioglu, Nursel, Ozkinay, Ferda, Koenig, Rainer, Megarbane, Andre, Semerci, C. Nur, Khan, Ayesha, Zafar, Saemah, Hennekam, Raoul, Sousa, Sergio B., Ramos, Lina, Garavelli, Livia, Furga, Andrea Superti, Wischmeijer, Anita, Jackson, Ian J., Gillessen-Kaesbach, Gabriele, Brunner, Han G., Wieczorek, Dagmar, van Bokhoven, Hans, FitzPatrick, David R., and Faculteit der Geneeskunde

Subjects
ANOMALIES, DNA Mutational Analysis, PROTEIN, anophthalmia, gene targeting, Bone Morphogenetic Protein 1, hindlimb, Mice, Xenopus laevis, genetic linkage, BINDING, genetics, Waardenburg's Syndrome, Waardenburg Syndrome, clinical article, C57BL mouse, adult, Mus, microsatellite marker, DEFECTS, gene expression regulation, Disease gene identification, BMP1 protein, human, Pedigree, Medicine, down regulation, mutational analysis, drug antagonism, medicine.medical_specialty, SMOC1 protein, human, embryo, Bone morphogenetic protein, animal tissue, loss of function mutation, Smoc1 gene, Genetics, Humans, human, Biology, Molecular Biology, Waardenburg syndrome, mouse, Ecology, Evolution, Behavior and Systematics, MUTATIONS, animal model, Correction, SMOC-1 protein, mouse, school child, medicine.disease, Mice, Inbred C57BL, Human Reproduction [NCEBP 12], gene function, Endocrinology, decapentaplegic protein, Genetics and epigenetic pathways of disease Functional Neurogenomics [NCMLS 6], Mutation, Cancer Research, frameshift mutation, Medizin, nonsense mutation, Gene Expression, mouse mutant, Eye, Bmp1 protein, mouse, Autosomal Recessive, bone morphogenetic protein, Missense mutation, animal, Osteonectin, SPECIFICATION, Genetics (clinical), RECESSIVE ANOPHTHALMIA, limb, cleft palate, Mice, Knockout, child, Coloboma, ABNORMALITIES, messenger RNA, article, pedigree, female, Mammalia, Models, Animal, Drosophila, Research Article, gene locus, lcsh:QH426-470, Nonsense mutation, procollagen C proteinase, male, ddc:570, Internal medicine, medicine, Animalia, Animals, gene, SMOC 1 protein, mouse, gene identification, growth, development and aging, Clinical Genetics, Phenocopy, nonhuman, Anophthalmia, missense mutation, syndactyly, Anophthalmos, nucleotide sequence, Human Genetics, Extremities, infant, lcsh:Genetics, XENOPUS, CELL-DEATH, adolescent, Genetics of Disease, Syndactyly, homozygosity, Genetics and epigenetic pathways of disease Genomic disorders and inherited multi-system disorders [NCMLS 6], metabolism, Animal Genetics
Abstract

WOS: 000293338600004, PubMed ID: 21750680, Ophthalmo-acromelic syndrome (OAS), also known as Waardenburg Anophthalmia syndrome, is defined by the combination of eye malformations, most commonly bilateral anophthalmia, with post-axial oligosyndactyly. Homozygosity mapping and subsequent targeted mutation analysis of a locus on 14q24.2 identified homozygous mutations in SMOC1 (SPARC-related modular calcium binding 1) in eight unrelated families. Four of these mutations are nonsense, two frame-shift, and two missense. The missense mutations are both in the second Thyroglobulin Type-1 (Tg1) domain of the protein. The orthologous gene in the mouse, Smoc1, shows site-and stage-specific expression during eye, limb, craniofacial, and somite development. We also report a targeted pre-conditional gene-trap mutation of Smoc1 (Smoc(1tm1a)) that reduces mRNA to similar to 10% of wild-type levels. This gene-trap results in highly penetrant hindlimb post-axial oligosyndactyly in homozygous mutant animals (Smoc(1tm1a/tm1a)). Eye malformations, most commonly coloboma, and cleft palate occur in a significant proportion of Smoc(1tm1a/tm1a) embryos and pups. Thus partial loss of Smoc-1 results in a convincing phenocopy of the human disease. SMOC-1 is one of the two mammalian paralogs of Drosophila Pentagone, an inhibitor of decapentaplegic. The orthologous gene in Xenopus laevis, Smoc-1, also functions as a Bone Morphogenic Protein (BMP) antagonist in early embryogenesis. Loss of BMP antagonism during mammalian development provides a plausible explanation for both the limb and eye phenotype in humans and mice., Medical Research Council (UK)Medical Research Council UK (MRC); Medical Research CouncilMedical Research Council UK (MRC) [MC_U127561093, MC_PC_U127561112, MC_U127561112], Funding for this project was provided as an intramural program grant from the Medical Research Council (UK). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Published
2011

22. Blepharophimosis with intellectual disability and Helsmoortel-Van Der Aa Syndrome share episignature and phenotype.

Author

Sarli C, van der Laan L, Reilly J, Trajkova S, Carli D, Brusco A, Levy MA, Relator R, Kerkhof J, McConkey H, Tedder ML, Skinner C, Alders M, Henneman P, Hennekam RCM, Ciaccio C, D'Arrigo S, Vitobello A, Faivre L, Weber S, Vincent-Devulder A, Perrin L, Bourgois A, Yamamoto T, Metcalfe K, Zollino M, Kini U, Oliveira D, Sousa SB, Williams D, Cappuccio G, Sadikovic B, and Brunetti-Pierri N

Abstract

Blepharophimosis with intellectual disability (BIS) is a recently recognized disorder distinct from Nicolaides-Baraister syndrome that presents with distinct facial features of blepharophimosis, developmental delay, and intellectual disability. BIS is caused by pathogenic variants in SMARCA2, that encodes the catalytic subunit of the superfamily II helicase group of the BRG1 and BRM-associated factors (BAF) forming the BAF complex, a chromatin remodeling complex involved in transcriptional regulation. Individuals bearing variants within the bipartite nuclear localization (BNL) signal domain of ADNP present with the neurodevelopmental disorder known as Helsmoortel-Van Der Aa Syndrome (HVDAS). Distinct DNA methylation profiles referred to as episignatures have been reported in HVDAS and BAF complex disorders. Due to molecular interactions between ADNP and BAF complex, and an overlapping craniofacial phenotype with narrowing of the palpebral fissures in a subset of patients with HVDAS and BIS, we hypothesized the possibility of a common phenotype-specific episignature. A distinct episignature was shared by 15 individuals with BIS-causing SMARCA2 pathogenic variants and 12 individuals with class II HVDAS caused by truncating pathogenic ADNP variants. This represents first evidence of a sensitive phenotype-specific episignature biomarker shared across distinct genetic conditions that also exhibit unique gene-specific episignatures., (© 2024 The Author(s). American Journal of Medical Genetics Part C: Seminars in Medical Genetics published by Wiley Periodicals LLC.)

Published
2024
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