@article {10822, title = {Next-generation sequencing identified SPATC1L as a possible candidate gene for both early-onset and age-related hearing loss.}, journal = {Eur J Hum Genet}, volume = {27}, year = {2019}, month = {2019 01}, pages = {70-79}, abstract = {

Hereditary hearing loss (HHL) and age-related hearing loss (ARHL) are two major sensory diseases affecting millions of people worldwide. Despite many efforts, additional HHL-genes and ARHL genetic risk factors still need to be identified. To fill this gap a large genomic screening based on next-generation sequencing technologies was performed. Whole exome sequencing in a 3-generation Italian HHL family and targeted re-sequencing in 464 ARHL patients were performed. We detected three variants in SPATC1L: a nonsense allele in an HHL family and a frameshift insertion and a missense variation in two unrelated ARHL patients. In silico molecular modelling of all variants suggested a significant impact on the structural stability of the protein itself, likely leading to deleterious effects and resulting in truncated isoforms. After demonstrating Spatc1l expression in mice inner ear, in vitro functional experiments were performed confirming the results of the molecular modelling studies. Finally, a candidate-gene population-based statistical study in cohorts from Caucasus and Central Asia revealed a statistically significant association of SPATC1L with normal hearing function at low and medium hearing frequencies. Overall, the amount of different genetic data presented here (variants with early-onset and late-onset hearing loss in addition to genetic association with normal hearing function), together with relevant functional evidence, likely suggest a role of SPATC1L in hearing function and loss.

}, issn = {1476-5438}, doi = {10.1038/s41431-018-0229-9}, author = {Morgan, Anna and Vuckovic, Dragana and Krishnamoorthy, Navaneethakrishnan and Rubinato, Elisa and Ambrosetti, Umberto and Castorina, Pierangela and Franz{\`e}, Annamaria and Vozzi, Diego and La Bianca, Martina and Cappellani, Stefania and Di Stazio, Mariateresa and Gasparini, Paolo and Girotto, Giorgia} } @article {8094, title = {PSIP1/LEDGF: a new gene likely involved in sensorineural progressive hearing loss.}, journal = {Sci Rep}, volume = {5}, year = {2015}, month = {2015}, pages = {18568}, abstract = {

Hereditary Hearing Loss (HHL) is an extremely heterogeneous disorder. Approximately 30 out of 80 known HHL genes are associated with autosomal dominant forms. Here, we identified PSIP1/LEDGF (isoform p75) as a novel strong candidate gene involved in dominant HHL. Using exome sequencing we found a frameshift deletion (c.1554_1555del leading to p.E518Dfs*2) in an Italian pedigree affected by sensorineural mild-to-moderate HHL but also showing a variable eye phenotype (i.e. uveitis, optic neuropathy). This deletion led to a premature stop codon (p.T519X) with truncation of the last 12 amino acids. PSIP1 was recently described as a transcriptional co-activator regulated by miR-135b in vestibular hair cells of the mouse inner ear as well as a possible protector against photoreceptor degeneration. Here, we demonstrate that it is ubiquitously expressed in the mouse inner ear. The PSIP1 mutation is associated with a peculiar audiometric slope toward the high frequencies. These findings indicate that PSIP1 likely plays an important role in HHL.

}, issn = {2045-2322}, doi = {10.1038/srep18568}, author = {Girotto, Giorgia and Scheffer, Deborah I and Morgan, Anna and Vozzi, Diego and Rubinato, Elisa and Di Stazio, Mariateresa and Muzzi, Enrico and Pensiero, Stefano and Giersch, Anne B and Corey, David P and Gasparini, Paolo} } @article {3517, title = {A girl with photosensitivity and hepatic steatosis.}, journal = {J Pediatr}, volume = {165}, year = {2014}, month = {2014 Jul}, pages = {201-201.e1}, keywords = {Child, Diagnosis, Differential, Fatty Liver, Female, Humans, Photosensitivity Disorders, Protoporphyria, Erythropoietic}, issn = {1097-6833}, doi = {10.1016/j.jpeds.2014.02.056}, author = {Pavan, Matteo and Gortani, Giulia and Rubinato, Elisa and Faletra, Flavio and Pastore, Serena and Ventura, Alessandro} } @article {3529, title = {A novel deletion mutation involving TMEM38B in a patient with autosomal recessive osteogenesis imperfecta.}, journal = {Gene}, volume = {545}, year = {2014}, month = {2014 Jul 25}, pages = {290-2}, abstract = {

Osteogenesis imperfecta (OI) is a hereditary bone disease characterized by decreased bone density and multiple fractures, usually inherited in an autosomal dominant manner. Several gene encoding proteins related to collagen metabolism have been described in some cases of autosomal recessive OI (including CRTAP, LEPRE1, PPIB, FKBP65, SERPINF1, BMP1, WNT1, FKBP10). Recently, TMEM38B, a gene that encodes TRIC-B, a monovalent cation-specific channel involved in calcium flux from intracellular stores and in cell differentiation, has been associated with autosomal recessive OI. Here, we describe the second deletion-mutation involving the TMEM38B gene in an 11 year-old Albanian female with a clinical phenotype of OI, born to parents with suspected consanguinity. SNP array analysis revealed a homozygous region larger than 2 Mb that overlapped with the TMEM38B locus and was characterized by a 35 kb homozygous deletion involving exons 1 and 2 of TMEM38B gene.

}, keywords = {Child, Chromosomes, Human, Pair 19, DNA Mutational Analysis, Exons, Female, Genes, Recessive, Homozygote, Humans, Ion Channels, Osteogenesis Imperfecta, Sequence Deletion}, issn = {1879-0038}, doi = {10.1016/j.gene.2014.05.028}, author = {Rubinato, Elisa and Morgan, Anna and D{\textquoteright}Eustacchio, Angela and Pecile, Vanna and Gortani, Giulia and Gasparini, Paolo and Faletra, Flavio} }