Gene Therapy Targeting the Inner Retina Rescues the Retinal Phenotype in a Mouse Model of CLN3 Batten Disease

被引:26
作者
Holthaus, Sophia-Martha Kleine [1 ]
Aristorena, Mikel [1 ]
Maswood, Ryea [1 ]
Semenyuk, Olha [1 ]
Hoke, Justin [1 ]
Hare, Aura [1 ]
Smith, Alexander J. [1 ]
Mole, Sara E. [2 ,3 ,4 ]
Ali, Robin R. [1 ,5 ]
机构
[1] UCL, Dept Genet, Inst Ophthalmol, London, England
[2] UCL, MRC Lab Mol Cell Biol, London, England
[3] UCL, Inst Child Hlth, London, England
[4] UCL, UCL Dept Genet Evolut & Environm, London, England
[5] Moorfields Eye Hosp NHS Fdn Trust, NIHR Biomed Res Ctr, London, England
基金
英国医学研究理事会;
关键词
gene therapy; retina; Batten disease; CLN3; bipolar cells; NEURONAL CEROID-LIPOFUSCINOSIS; INTERNAL LIMITING MEMBRANE; MICE; PIGMENTOSA; PROTEIN; VECTOR; ELECTRORETINOGRAM; DEGENERATION; TRANSDUCTION; MUTATION;
D O I
10.1089/hum.2020.038
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The neuronal ceroid lipofuscinoses (NCLs), often referred to as Batten disease, are inherited lysosomal storage disorders that represent the most common neurodegeneration during childhood. Symptoms include seizures, vision loss, motor and cognitive decline, and premature death. The development of brain-directed treatments for NCLs has made noteworthy progress in recent years. Clinical trials are currently ongoing or planned for different forms of the disease. Despite these promising advances, it is unlikely that therapeutic interventions targeting the brain will prevent loss of vision in patients as retinal cells remain untreated and will continue to degenerate. Here, we demonstrate thatCln3(Delta ex7/8)mice, a mouse model of CLN3 Batten disease with juvenile onset, suffer from a decline in inner retinal function resulting from the death of rod bipolar cells, interneurons vital for signal transmission from photoreceptors to ganglion cells in the retina. We also show that this ocular phenotype can be treated by adeno-associated virus (AAV)-mediated expression ofCLN3in cells of the inner retina, leading to significant survival of bipolar cells and preserved retinal function. In contrast, the treatment of photoreceptors, which are lost in patients at late disease stages, was not therapeutic inCln3(Delta ex7/8)mice, underlining the notion that CLN3 disease is primarily a disease of the inner retina with secondary changes in the outer retina. These data indicate that bipolar cells play a central role in this disease and identify this cell type as an important target for ocular AAV-based gene therapies for CLN3 disease.
引用
收藏
页码:709 / 718
页数:10
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