PMID- 24598786 OWN - NLM STAT- MEDLINE DCOM- 20150113 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 3 DP - 2014 TI - Lrit3 deficient mouse (nob6): a novel model of complete congenital stationary night blindness (cCSNB). PG - e90342 LID - 10.1371/journal.pone.0090342 [doi] LID - e90342 AB - Mutations in LRIT3, coding for a Leucine-Rich Repeat, immunoglobulin-like and transmembrane domains 3 protein lead to autosomal recessive complete congenital stationary night blindness (cCSNB). The role of the corresponding protein in the ON-bipolar cell signaling cascade remains to be elucidated. Here we genetically and functionally characterize a commercially available Lrit3 knock-out mouse, a model to study the function and the pathogenic mechanism of LRIT3. We confirm that the insertion of a Bgeo/Puro cassette in the knock-out allele introduces a premature stop codon, which presumably codes for a non-functional protein. The mouse line does not harbor other mutations present in common laboratory mouse strains or in other known cCSNB genes. Lrit3 mutant mice exhibit a so-called no b-wave (nob) phenotype with lacking or severely reduced b-wave amplitudes in the scotopic and photopic electroretinogram (ERG), respectively. Optomotor tests reveal strongly decreased optomotor responses in scotopic conditions. No obvious fundus auto-fluorescence or histological retinal structure abnormalities are observed. However, spectral domain optical coherence tomography (SD-OCT) reveals thinned inner nuclear layer and part of the retina containing inner plexiform layer, ganglion cell layer and nerve fiber layer in these mice. To our knowledge, this is the first time that SD-OCT technology is used to characterize an animal model for CSNB. This phenotype is noted at 6 weeks and at 6 months. The stationary nob phenotype of mice lacking Lrit3, which we named nob6, confirms the findings previously reported in patients carrying LRIT3 mutations and is similar to other cCSNB mouse models. This novel mouse model will be useful for investigating the pathogenic mechanism(s) associated with LRIT3 mutations and clarifying the role of LRIT3 in the ON-bipolar cell signaling cascade. FAU - Neuille, Marion AU - Neuille M AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. FAU - El Shamieh, Said AU - El Shamieh S AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. FAU - Orhan, Elise AU - Orhan E AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. FAU - Michiels, Christelle AU - Michiels C AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. FAU - Antonio, Aline AU - Antonio A AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DHOS CIC 503, Paris, France. FAU - Lancelot, Marie-Elise AU - Lancelot ME AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. FAU - Condroyer, Christel AU - Condroyer C AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. FAU - Bujakowska, Kinga AU - Bujakowska K AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France; Massachusetts Eye and Ear Infirmary, Ocular Genomics Institute, Boston, Massachusetts, United States of America. FAU - Poch, Olivier AU - Poch O AD - Laboratoire de Bioinformatique Integrative et Genomique, ICube, CNRS, UMR_7357, Strasbourg, France. FAU - Sahel, Jose-Alain AU - Sahel JA AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DHOS CIC 503, Paris, France; Institute of Ophthalmology, University College of London, London, United Kingdom; Fondation Ophtalmologique Adolphe de Rothschild, Paris, France; Academie des Sciences-Institut de France, Paris, France. FAU - Audo, Isabelle AU - Audo I AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DHOS CIC 503, Paris, France; Institute of Ophthalmology, University College of London, London, United Kingdom. FAU - Zeitz, Christina AU - Zeitz C AD - INSERM, U968, Paris, France; CNRS, UMR_7210, Paris, France; Sorbonne Universites, UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris, France. LA - eng SI - GENBANK/KF954709 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140305 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Lrit3 protein, mouse) RN - 0 (Membrane Proteins) RN - Night blindness, congenital stationary SB - IM MH - Amino Acid Sequence MH - Animals MH - Disease Models, Animal MH - Eye Diseases, Hereditary/*genetics/physiopathology MH - Eye Movements MH - Female MH - Genetic Diseases, X-Linked/*genetics/physiopathology MH - Head Movements MH - Male MH - Membrane Proteins/*deficiency/genetics MH - Mice, 129 Strain MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Molecular Sequence Data MH - Myopia/*genetics/physiopathology MH - Night Blindness/*genetics/physiopathology MH - Retina/pathology PMC - PMC3943948 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/03/07 06:00 MHDA- 2015/01/15 06:00 PMCR- 2014/03/05 CRDT- 2014/03/07 06:00 PHST- 2013/12/23 00:00 [received] PHST- 2014/01/31 00:00 [accepted] PHST- 2014/03/07 06:00 [entrez] PHST- 2014/03/07 06:00 [pubmed] PHST- 2015/01/15 06:00 [medline] PHST- 2014/03/05 00:00 [pmc-release] AID - PONE-D-13-53816 [pii] AID - 10.1371/journal.pone.0090342 [doi] PST - epublish SO - PLoS One. 2014 Mar 5;9(3):e90342. doi: 10.1371/journal.pone.0090342. eCollection 2014.