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2. RPGRIP1L mutations are mainly associated with the cerebello-renal phenotype of Joubert syndrome-related disorders

Author

Brancati F, Travaglini L, Zablocka D, Boltshauser E, Accorsi P, Montagna G, Silhavy JL, Barrano G, Bertini E, Emma F, Rigoli L and International JSRD Study Group, Leventer R, Grattan-Smith P, Janecke A, D'Hooghe M, Van Coster R, Dias K, Moco C, Moreira A, Ki

Abstract

Joubert syndrome-related disorders (JSRDs) are autosomal recessive pleiotropic conditions sharing a peculiar cerebellar and brainstem malformation known as the 'molar tooth sign' (MTS). Recently, mutations in a novel ciliary gene, RPGRIP1L, have been shown to cause both JSRDs and Meckel-Gruber syndrome. We searched for RPGRIP1L mutations in 120 patients with proven MTS and phenotypes representative of all JSRD clinical subgroups. Two homozygous mutations, the previously reported p.T615P in exon 15 and the novel c.2268_2269delA in exon 16, were detected in 2 of 16 families with cerebello-renal presentation ( approximately 12%). Conversely, no pathogenic changes were found in patients with other JSRD phenotypes, suggesting that RPGRIP1L mutations are largely confined to the cerebello-renal subgroup, while they overall represent a rare cause of JSRD (

Published
2008

3. CEP290 mutations are frequently identified in the oculo-renal form of Joubert syndrome-related disorders

Author

Brancati, F., Barrano, G., Silhavy, J. L., Marsh, S. E., Travaglini, L., Bielas, S. L., Amorini, M., Zablocka, D., Kayserili, H., Al-Gazali, L., Bertini, E., Boltshauser, E., D'Hooghe, M., Fazzi, Eleonora, Fenerci, E. Y., Hennekam, R. C. M., Kiss, A., Lees, M. M., Marco, E., Phadke, S. R., Rigoli, L., Romano, S., Salpietro, C. D., Sherr, E. H., Signorini, S., Stromme, P., Stuart, B., Sztriha, L., Viskochil, D. H., Yuksel, A., Dallapiccola, B., Valente, E. M., Gleeson, J. G., Grattan-Smith, P., Leventer, R., Janecke, A., Van Coster, R., Dias, K., Moco, C., MOREIRA DA SILVA, CLAUDIA ALEXANDRA, Chong, A. K., Maegawa, G., Abdel-Salam, G. M. H., Abdel-Aleem, A., Zaki, M. S., Marti, I., Quijano-Roy, S., De Lonlay, P., Verloes, A., Touraine, R., Koenig, M., Lagier-Tourenne, C., Messer, J., Philippi, H., Tzeli, S. K., Halldorsson, S., Johannsdottir, J., Ludvigsson, P., Magee, A., Lev, D., Michelson, M., Ben-Zeev, B., Fischetto, R., Gentile, M., Battaglia, S., Giordano, L., Boccone, L., Ruggieri, M., Bigoni, S., Ferlini, A., Donati, M. A., Procopio, E., Caridi, G., Faravelli, F., Ghiggeri, G., Briuglia, S., Tortorella, G., D'Arrigo, S., Pantaleoni, C., Riva, D., Uziel, G., Lavercla, A. M., Permunian, A., Bova, S., Battini, Roberta, Cilio, M. R., DI SABATO, Manuela, Emma, F., Leuzzi, V., Parisi, P., Simonati, A., Al-Tawari, A. A., Bastaki, L., Aqeel, A., De Jong, M. M., Koul, R., Rajab, A., Azam, M., Barbot, C., Rodriguez, B., Pascual-Castroviejo, I., Comu, S., Akcakus, M., Nicholl, D., Woods, C. G., Bennett, C., Hurst, J., Walsh, C. A., Bernes, S., Sanchez, H., Clark, A. E., Donahue, C., Hahn, J., Sanger, T. D., Gallager, T. E., Dobyns, W. B., Daugherty, C., Krishnamoorthy, K. S., Sarco, D., Mckanna, T., Milisa, J., Chung, W. K., De Vivo, D. C., Raynes, H., Schubert, R., Seward, A., Brooks, D. G., Goldstein, A., Caldwell, J., Finsecke, E., Maria, B. L., Holden, K., Cruse, R. P., Swoboda, K. J., ANS - Amsterdam Neuroscience, APH - Amsterdam Public Health, and Paediatric Genetics

Subjects
Male, Pathology, DNA Mutational Analysis, Cell Cycle Proteins, medicine.disease_cause, Ciliopathies, Ocular Motility Disorders, Cohort Studies, Joubert syndrome–related disorders, CEP290, Genetics(clinical), Child, Genetics (clinical), Genetics, Mutation, Brain, Syndrome, Phenotype, Magnetic Resonance Imaging, Kidney Diseases, Molar, Neoplasm Proteins, Child, Preschool, Abnormalities, Multiple, Adolescent, Adult, Antigens, Neoplasm, Female, Humans, Abnormalities, Multiple, medicine.medical_specialty, Biology, Article, Joubert syndrome, Central nervous system disease, medicine, Antigens, Preschool, Genetic heterogeneity, medicine.disease, Cytoskeletal Proteins, Situs inversus, Neoplasm
Abstract

Joubert syndrome–related disorders (JSRDs) are a group of clinically and genetically heterogeneous conditions that share a midbrain-hindbrain malformation, the molar tooth sign (MTS) visible on brain imaging, with variable neurological, ocular, and renal manifestations. Mutations in the CEP290 gene were recently identified in families with the MTS-related neurological features, many of which showed oculo-renal involvement typical of Senior-Löken syndrome (JSRD-SLS phenotype). Here, we performed comprehensive CEP290-mutation analysis on two nonoverlapping cohorts of JSRD-affected patients with a proven MTS. We identified mutations in 19 of 44 patients with JSRD-SLS. The second cohort consisted of 84 patients representing the spectrum of other JSRD subtypes, with mutations identified in only two patients. The data suggest that CEP290 mutations are frequently encountered and are largely specific to the JSRD-SLS subtype. One patient with mutation displayed complete situs inversus, confirming the clinical and genetic overlap between JSRDs and other ciliopathies.

Published
2007

4. CEP290 mutations are frequently identified in the oculo-renal form of Joubert syndrome-related disorders

Author

Brancati, F, Barrano, G, Silhavy, Jl, Marsh, Se, Travaglini, L, Bielas, Sl, Amorini, M, Zablocka, D, Kayserili, H, Al Gazali, L, Bertini, E, Boltshauser, E, D'Hooghe, M, Fazzi, E, Fenerci, Ey, Hennekam, Rc, Kiss, A, Lees, Mm, Marco, E, Phadke, Sr, Rigoli, L, Romano, S, Salpietro, Cd, Sherr, Eh, Signorini, S, Stromme, P, Stuart, B, Sztriha, L, Viskochil, Dh, Yuksel, A, Dallapiccola, [International JSRD Study Group], Valente, Em, Gleeson, Jg, Smith, P, Leventer, R, Janecke, A, Van Coster, R, Dias, K, Moco, C, Moreira, A, Chong, Ak, Maegawa, G, Abdel Salam GMH, Abdel Aleem, A, Zaki, Ms, Martu, I, Quijano Roy, S, De Lonlay, P, Verloes, A, Touraine, R, Koenig, M, Lagier Tourenne, C, Messer, J, Philippi, H, Tzeli, Sk, Halldorsson, S, Johannsdotir, J, Ludvigsson, P, Magee, A, Lev, D, Michelson, M, Ben Zev, B, Fischetto, R, Gentile, M, Battaglia, S, Giordano, L, Boccone, L, Ruggieri, Martino, Bigoni, S, Ferlini, A, Donati, Ma, Procopio, E, Cardidi, G, Faravelli, F, Ghiggeri, G, Briuglia, S, Tortorella, G, D’Arrigo, S, Pantaleoni, C, Riva, D, Uziel, G, Lavercla, Am, Permunian, A, Bova, S, Battini, R, Cilio, Mr, Di Sabato, M, Emma, F, Leuzzi, V, Parisi, P, Simonati, A, Al Tawari AA, Bastaki, L, Aqeel, A, De Jong MM, Koul, R, Rajab, A, Azam, M, Barbot, C, Rodriguez, B, Pascual Castroviejo, I, Comu, S, Akcakus, M, Nicholl, D, Woods, Cg, Bennet, C, Hurst, J, Walsh, Ca, Bernes, S, Sanchez, H, Clark, Ae, Donahue, C, Hahn, J, Sanger, Td, Gallager, Te, Dobyns, Wb, Daugherty, C, Krishnamoorthy, Ks, Sarco, D, Mckanna, T, Milisa, J, Chung, Wk, De Vivo DC, Raynes, H, Schubert, R, Seward, A, Brooks, Dg, Goldstein, A, Caldwell, J, Finsecke, E, Maria, Bl, Holden, K, Cruse, Rp, and Swoboda, Kj

Published
2007

5. CEP290 mutations are frequently identified in the oculo-renal form of Joubert syndrome-related disorders.

Author

Brancati F, Barrano G, Silhavy JL, Marsh SE, Travaglini L, Bielas SL, Amorini M, Zablocka D, Kayserili H, Al-Gazali L, Bertini E, Boltshauser E, D'Hooghe M, Fazzi E, Fenerci EY, Hennekam RC, Kiss A, Lees MM, Marco E, Phadke SR, Rigoli L, Romano S, Salpietro CD, Sherr EH, Signorini S, Stromme P, Stuart B, Sztriha L, Viskochil DH, Yuksel A, Dallapiccola B, Valente EM, and Gleeson JG

Subjects
Abnormalities, Multiple diagnosis, Adolescent, Adult, Cell Cycle Proteins, Child, Child, Preschool, Cohort Studies, Cytoskeletal Proteins, DNA Mutational Analysis, Female, Humans, Kidney Diseases diagnosis, Magnetic Resonance Imaging, Male, Mutation, Ocular Motility Disorders diagnosis, Phenotype, Syndrome, Abnormalities, Multiple genetics, Antigens, Neoplasm genetics, Brain abnormalities, Kidney Diseases genetics, Molar abnormalities, Neoplasm Proteins genetics, Ocular Motility Disorders genetics
Abstract

Joubert syndrome-related disorders (JSRDs) are a group of clinically and genetically heterogeneous conditions that share a midbrain-hindbrain malformation, the molar tooth sign (MTS) visible on brain imaging, with variable neurological, ocular, and renal manifestations. Mutations in the CEP290 gene were recently identified in families with the MTS-related neurological features, many of which showed oculo-renal involvement typical of Senior-Loken syndrome (JSRD-SLS phenotype). Here, we performed comprehensive CEP290-mutation analysis on two nonoverlapping cohorts of JSRD-affected patients with a proven MTS. We identified mutations in 19 of 44 patients with JSRD-SLS. The second cohort consisted of 84 patients representing the spectrum of other JSRD subtypes, with mutations identified in only two patients. The data suggest that CEP290 mutations are frequently encountered and are largely specific to the JSRD-SLS subtype. One patient with mutation displayed complete situs inversus, confirming the clinical and genetic overlap between JSRDs and other ciliopathies.

Published
2007
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