The invention provides compositions and methods for allele specific gene editing. In particular, the invention provides methods and compositions for treating dominant progressive hearing loss by selectively inactivating a dominant mutation in TMC1.

Disclosed herein are genetically modified rodent animals comprising in their genome a nucleic acid which comprises a nucleotide sequence encoding a human CR1 polypeptide, wherein the rodent animals display a human-like expression of the human CR1 polypeptide. Also disclosed herein are isolated rodent cells including rodent embryonic stem cells, and rodent tissues. Further disclosed are nucleic acid vectors and methods for making the genetically modified rodent animals, as well as methods of using such genetically modified rodent animals for screening and testing candidate compounds.

The present disclosure relates to modified adeno-associated virus (AAV) delivery vectors comprising ‘silence and replace’ DNA constructs, compositions comprising same, and the use of the modified AAV and compositions to treat oculopharyngeal muscular dystrophy (OPMD) in individuals suffering from OPMD or which are predisposed thereto. In particular, the disclosure relates to AAV having a capsid protein with a modified subunit 1 (VP1) and comprising a ‘silence and replace’ DNA construct, wherein the ‘silence and replace’ DNA construct comprises (i) a DNA-directed RNAi (ddRNAi) construct encoding short hairpin microRNA (shmiR) targeting PABPN1 causative of OPMD and (ii) a PABPN1 construct encoding functional PABPN1 protein having a mRNA transcript which is not targeted by the shmiRs at (i). The present disclosure also relates to the methods of treating OPMD comprising direct injection of an AAV of the disclosure to a subject's pharyngeal muscles.

This disclosure provides new animal models for studying Usher syndrome and developing new therapy. The technology is implemented in pigs, and other large animals in which the ophthalmic architecture and function more closely resembles architecture and function of the human eye. The animals have a genetic modification in which all or a portion of a human gene known to cause Usher syndrome in human patients replaces the host gene. Animals can be cloned or bred to be homozygous at the targeted locus, whereupon they manifest symptoms and signs of Usher syndrome. Since a substantial portion of the targeted gene has been humanized, the animals can be used to develop and test pharmacological agents such as gene therapy that are sequence dependent.

The disclosed invention relates to methods and transgenic non-human mammals comprising a full length human VIPR2 genomic region integrated into a genome of the mammal. According to a further embodiment the mammal is a mouse. The disclosed invention further relates to transgenic cells from the transgenic non-human mammal. The disclosed invention further relates to therapeutics and methods of treating Schizophrenia in a human comprising administering a therapeutic, where the therapeutic contains one of a pharmacologically effective amount of a hVIPR2 antagonist, and a CRISPR/Cas9 formulation. The disclosed invention further relates to materials and methods of determining efficacy of an antipsychotic therapeutic in treating a condition comprising administering to the transgenic non-human mammal.

This invention relates to polynucleotides comprising optimized aspartylglucosaminidase (AGA) open reading frames and vectors and cells comprising the same. The invention further relates to methods of using the same for delivery of the open reading frame to a cell or a subject and methods for treating aspartylglucosaminuria (AGU) in a subject.

Provided herein are compositions that include at least two different nucleic acid vectors, where each of the at least two different vectors includes a coding sequence that encodes a different portion of a stereocilin protein, and the use of these compositions to treat non-syndromic sensorineural hearing loss in a subject.

The present disclosure provides, among other things, a recombinant adeno-associated virus (rAAV) vector comprising an AAV8 or AAV9 capsid and a codon-optimized sequence encoding a human iduronate-2-sulfatase (I2S) enzyme. The disclosure also provides a method of treating a subject having Hunter syndrome (MPS II), comprising administering to the subject in need thereof a recombinant adeno-associated virus (rAAV) vector comprising an AAV8 or AAV9 capsid, and a promoter operably linked to a nucleic acid sequence that encodes iduronate-2-sulfatase (I2S), and wherein administering results in an increase in I2S enzymatic activity in the subject.

This invention relates to polynucleotides comprising optimized CLN7 open reading frame (ORF) sequences, viral vectors comprising the same, and methods of using the same for delivery of the ORF to a cell or a subject and to treat disorders associated with aberrant expression of CLN7, such as variant late infantile neuronal ceroid lipofuscinoses (vLINCL; CLN7 disease).

Non-human animals suitable for use as animal models for Retinoschisis are provided. In some embodiments, provided non-human animals are characterized by a disruption in a Retinoschisin-1 locus. In some embodiments, provided non-human animals are characterized by a mutant Retinoschisin-1 gene. The non-human animals may be described, in some embodiments, as having a phenotype that includes the development of one or more symptoms or phenotypes associated with Retinoschisis. Methods of identifying therapeutic candidates that may be used to prevent, delay or treat Retinoschisis or eye-related diseases, disorders or conditions are also provided.