Journal article
Authors list: Audo, Isabelle; Bujakowska, Kinga; Orhan, Elise; Poloschek, Charlotte M.; Defoort-Dhellemmes, Sabine; Drumare, Isabelle; Kohl, Susanne; Luu, Tien D.; Lecompte, Odile; Zrenner, Eberhart; Lancelot, Marie-Elise; Antonio, Aline; Germain, Aurore; Michiels, Christelle; Audier, Claire; Letexier, Melanie; Saraiva, Jean-Paul; Leroy, Bart P.; Munier, Francis L.; Mohand-Said, Saddek; Lorenz, Birgit; Friedburg, Christoph; Preising, Markus; Kellner, Ulrich; Renner, Agnes B.; Moskova-Doumanova, Veselina; Berger, Wolfgang; Wissinger, Bernd; Hamel, Christian R.; Schorderet, Daniel F.; De Baere, Elfride; Sharon, Dror; Banin, Eyal; Jacobson, Samuel G.; Bonneau, Dominique; Zanlonghi, Xavier; Le Meur, Guylene; Casteels, Ingele; Koenekoop, Robert; Long, Vernon W.; Meire, Francoise; Prescott, Katrina; de Ravel, Thomy; Simmons, Ian; Nguyen, Hoan; Dollfus, Helene; Poch, Olivier; Leveillard, Thierry; Nguyen-Ba-Charvet, Kim; Sahel, Jose-Alain; Bhattacharya, Shomi S.; Zeitz, Christina
Publication year: 2012
Pages: 321-330
Journal: American Journal of Human Genetics
Volume number: 90
Issue number: 2
ISSN: 0002-9297
eISSN: 1537-6605
DOI Link: https://doi.org/10.1016/j.ajhg.2011.12.007
Publisher: Cell Press
Abstract:
Congenital stationary night blindness (CSNB) is a heterogeneous retinal disorder characterized by visual impairment under low light conditions. This disorder is due to a signal transmission defect from rod photoreceptors to adjacent bipolar cells in the retina. Two forms can be distinguished clinically, complete CSNB (cCSNB) or incomplete CSNB; the two forms are distinguished on the basis of the affected signaling pathway Mutations in NYX, GRM6, and TRPM1, expressed in the outer plexiform layer (Oft) lead to disruption of the ON-bipolar cell response and have been seen in patients with cCSNB. Whole-exome sequencing in cCSNB patients lacking mutations in the known genes led to the identification of a homozygous missense mutation (c.1.807C>T [p.His603Tyr]) in one consanguineous autosomal-recessive cCSNB family and a homozygous frameshift mutation in GPR179 (c.278delC [p.Pro93Glnfs*57]) in a simplex male cCSNB patient. Additional screening with Sanger sequencing of 40 patients identified three other cCSNB patients harboring additional allelic mutations in GPR179. Although, immunhistological studies revealed Gpr179 in the OM in wild-type mouse retina, Gpr179 did not colocalize with specific ON-bipolar markers. Interestingly, Gpr179 was highly concentrated in horizontal cells and Muller cell endfeet. The involvement of these cells in cCSNB and the specific function of GPR179 remain to be elucidated.
Citation Styles
Harvard Citation style: Audo, I., Bujakowska, K., Orhan, E., Poloschek, C., Defoort-Dhellemmes, S., Drumare, I., et al. (2012) Whole-Exome Sequencing Identifies Mutations in GPR179 Leading to Autosomal-Recessive Complete Congenital Stationary Night Blindness, American Journal of Human Genetics, 90(2), pp. 321-330. https://doi.org/10.1016/j.ajhg.2011.12.007
APA Citation style: Audo, I., Bujakowska, K., Orhan, E., Poloschek, C., Defoort-Dhellemmes, S., Drumare, I., Kohl, S., Luu, T., Lecompte, O., Zrenner, E., Lancelot, M., Antonio, A., Germain, A., Michiels, C., Audier, C., Letexier, M., Saraiva, J., Leroy, B., Munier, F., ...Zeitz, C. (2012). Whole-Exome Sequencing Identifies Mutations in GPR179 Leading to Autosomal-Recessive Complete Congenital Stationary Night Blindness. American Journal of Human Genetics. 90(2), 321-330. https://doi.org/10.1016/j.ajhg.2011.12.007
Keywords
BIPOLAR CELLS; CHANNEL SUBUNIT; COMPLETE FORM; GAMMA-SUBUNIT; MUSCULAR-DYSTROPHY; NYCTALOPIN; PHENOTYPIC IMPACT; TRPM1
