- Ocular Neurodegeneration
- Research Interests
- Advances in Experimental Medicine and Biology | Tanum nettbokhandel
- Regine Mühlfriedel
Pomares E. Nonsense-mediated decay as the molecular cause for autosomal recessive bestrophinopathy in two unrelated families. Invest Ophthalmol Vis Sci. High-throughput approaches for the genetic diagnosis of retinal dystrophies. Identification of an intronic single-point mutation in RP2 as the cause of semidominant X-linked retinitis pigmentosa.
Overexpression of CERKL, a gene responsible for retinitis pigmentosa in humans, protects cells from apoptosis induced by oxidative stress. Mol Vis. British Journal of Ophthalmology , Novel high-throughput SNP genotyping cosegregation analysis for genetic diagnosis of autosomal recessive Retinitis Pigmentosa and Leber Congenital Amaurosis. Human Mutation 28 5 : , Molecular Vision , Comparative Biochemistry and Physiology Part B. The ubiquitin-specific protease USP25 interacts with three sarcomeric proteins. Cellular and Molecular Life Sciences , Getting closer to a pre-vertebrate genome: the non-LTR retrotransposons of Branchiostoma floridae.
International Journal of Biological Sciences 2: , S-nitrosogluthathione reductase activity of amphioxus ADH3: insights into the nitric oxide metabolism. Retinoic acid genetic machinery predates the origin of chordates.
Preface Advances in Experimental Medicine and Biology. The Journal of Clinical Investigation.
Misfolded proteins and retinal dystrophies. CNTF induces regeneration of cone outer segments in a rat model of retinal degeneration.
- Advances in Experimental Medicine and Biology;
- Departament de Genètica. Universitat de Barcelona.
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Intense cyclic light-induced retinal degeneration in rats. Archives of Ophthalmology Chicago, Ill. In Memoriam Michael Danciger, Ph. DOI: Regulation of neonatal development of retinal ganglion cell dendrites by neurotrophin-3 overexpression. The Journal of Comparative Neurology. The British Journal of Ophthalmology. Sustained delivery of NT-3 from lens fiber cells in transgenic mice reveals specificity of neuroprotection in retinal degenerations.
The relationship of photoreceptor degeneration to retinal vascular development and loss in mutant rhodopsin transgenic and RCS rats. LaVail M , et al. Retinal TrkB receptors regulate neural development in the inner, but not outer, retina. Molecular and Cellular Neurosciences. Genetic modifiers of retinal degeneration in the rd3 mouse. Intraocular CNTF reduces vision in normal rats in a dose-dependent manner.
IRE1 signaling affects cell fate during the unfolded protein response. Science New York, N. Rapid and stable knockdown of an endogenous gene in retinal pigment epithelium. Human Gene Therapy. Vesicular glutamate transporter 1 is required for photoreceptor synaptic signaling but not for intrinsic visual functions.
Molecular and cellular alterations induced by sustained expression of ciliary neurotrophic factor in a mouse model of retinitis pigmentosa. Molecular Vision. Neurotrophic factors minimize the retinal toxicity of verteporfin photodynamic therapy. A strong genetic determinant of hyperoxia-related retinal degeneration on mouse chromosome 6. Retinal damage caused by photodynamic therapy can be reduced using BDNF. Light and inherited retinal degeneration. Survival factors for treatment of retinal degenerative disorders: preclinical gains and issues for translation into clinical studies.
Retina Philadelphia, Pa. BDNF reduces the retinal toxicity of verteporfin photodynamic therapy. Timing and topography of cell genesis in the rat retina. Range of retinal diseases potentially treatable by AAV-vectored gene therapy.
Novartis Foundation Symposium. Photoreceptor degeneration in Pro23His and Ster transgenic rats. Inherited retinal dystrophy in Mer knockout mice. Retinal remodeling triggered by photoreceptor degenerations.
Free radical trap phenyl-N-tert-butylnitrone protects against light damage but does not rescue P23H and Ster rhodopsin transgenic rats from inherited retinal degeneration. A strong and highly significant QTL on chromosome 6 that protects the mouse from age-related retinal degeneration.
Lack of p75 receptor does not protect photoreceptors from light-induced cell death. An RCS-like retinal dystrophy phenotype in mer knockout mice. Low docosahexaenoic acid levels in rod outer segments of rats with P23H and Ster rhodopsin mutations. Mertk triggers uptake of photoreceptor outer segments during phagocytosis by cultured retinal pigment epithelial cells. The Journal of Biological Chemistry. Neurotrophin receptor TrkB activation is not required for the postnatal survival of retinal ganglion cells in vivo. Experimental Neurology. Correction of the retinal dystrophy phenotype of the RCS rat by viral gene transfer of Mertk.
Augmented rod bipolar cell function in partial receptor loss: an ERG study in P23H rhodopsin transgenic and aging normal rats. Vision Research. Legacy of the RCS rat: impact of a seminal study on retinal cell biology and retinal degenerative diseases. Progress in Brain Research. Retinal degeneration in the nervous mutant mouse.
Advances in Experimental Medicine and Biology | Tanum nettbokhandel
Inner retinal changes. Viral-vectored ribozymes as therapy for autosomal dominant retinal disease Clinical Neuroscience Research. Ribozyme rescue of photoreceptor cells in P23H transgenic rats: long-term survival and late-stage therapy. Electrophysiological studies of the visual pathway. Ribozyme gene therapy for autosomal dominant retinal disease.
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Characterization of rhodopsin mis-sorting and constitutive activation in a transgenic rat model of retinitis pigmentosa. Mutation of the receptor tyrosine kinase gene Mertk in the retinal dystrophic RCS rat. Human Molecular Genetics. Role of neurotrophin receptor TrkB in the maturation of rod photoreceptors and establishment of synaptic transmission to the inner retina.
Disease-causing mutations in BEST1 gene are associated with altered sorting of bestrophin-1 protein. Int J Mol Sci. Human induced pluripotent stem cells reveal early developmental molecular correlates with a probable Leber congenital amaurosis type I. Cell Reprog. Pharmaceuticals Biol Cell. On Your Marks Get Bound LaVail, R. Anderson and J. Hollyfield Eds.
Lyon: Editions MatriX. Pig Cell Melan Res. Invest Ophthalmol Vis Sci. Presentation At the back of the eye lie cells from the retinal pigment epithelium RPE. RPE functions are numerous and all crucial for the homeostasis of the retina and vision: supply in nutrients, ions and oxygen to photoreceptors, elimination of photoreceptor waste, secretion of trophic factors, renewal of photopigments, participation in retinal adhesion, … Adjacent to RPE cells, photoreceptors initiate the visual signaling reaching the brain in a specific compartment constituted of membranous disks containing photosensitive molecules and named photoreceptor outer segments POS.
POS are submitted to a strong oxidative stress due to their constant exposure to light rays. In order to limit this stress, POS are permanently renewed and their most-aged distal part is shed following a circadian rhythm. Thus, RPE cells being post-mitotic they represent the busiest phagocytes in the body. Complete absence or deregulated retinal phagocytosis leads to early or late vision loss respectively, in rodent models as well as in human patients. Depending on the molecular dysfunction, retinal phenotypes observed in rodent models resemble phenotypes such as retinitis pigmentosa or age-related macular degeneration AMD , first cause of blindness in people over 50 years.
AMD is in part caused by the progressive accumulation of poorly digested POS debris that gets oxidized and lead to the slow build up of lipofuscin. Interestingly, human patients carrying mutations in the gene coding the internalization receptor MERTK are affected by rod-cone dystrophies atypical retinitis pigmentosa comprising macular lesions, showing an alteration in the phagocytic function of RPE cells. Projects in the team aim at understanding how deregulation of RPE functions lead to pathologies.
Our main interest is the characterization of molecular mechanisms ruling the daily rhythmic disposal of shed POS.