This invention relates to lentiviral gene transfer vectors pseudotyped with hemagglutinin-neuraminidase (HN) and fusion (F) proteins from a respiratory paramyxovirus, comprising a promoter and a transgene; and methods of making the same. The present invention also relates to the use of said vectors in gene therapy, particularly for the treatment of respiratory tract diseases such as Cystic Fibrosis (CF).

The present invention provides, among other things, an improved method of treating cystic fibrosis (CF) in a human subject. The method comprises administering a composition comprising an mRNA encoding a Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) protein at a concentration of 0.5 mg/mL or greater to a human subject via nebulization. The composition is aerosolized using a nebulizer and a nominal dose of the mRNA is administered to the human subject via the nebulizer over a period of time, typically at least 30 minutes, at a suitable nebulization rate, e.g., at least 0.2 mL/minute.

The present invention provides compositions and methods for reprogramming somatic cells using purified RNA preparations comprising single-strand mRNA encoding an iPS cell induction factor. The purified RNA preparations are preferably substantially free of RNA contaminant molecules that: i) would activate an immune response in the somatic cells, ii) would decrease expression of the single-stranded mRNA in the somatic cells, and/or iii) active RNA sensors in the somatic cells. In certain embodiments, the purified RNA preparations are substantially free of partial mRNAs, double-stranded RNAs, un-capped RNA molecules, and/or single-stranded run-on mRNAs.

The disclosure provides, inter alia, fusion proteins comprising a zinc finger domain and a transcriptional activator, nucleic acids, vectors, and exosomes that can be used to activate transcription in a cystic fibrosis transmembrane conductance regulator gene and treat cystic fibrosis.

Nucleases and methods of using these nucleases for alteration of a CFTR gene and generation of cells and animal models.

Materials, formulations, production methods, and methods for delivery of CFTR mRNA for induction of CFTR expression, including in the mammalian lung are provided. The present invention is particularly useful for treating cystic fibrosis.

This invention provides RNA, oligoribonucleotide, and polyribonucleotide molecules comprising pseudouridine or a modified nucleoside, gene therapy vectors comprising same, methods of synthesizing same, and methods for gene replacement, gene therapy, gene transcription silencing, and the delivery of therapeutic proteins to tissue in vivo, comprising the molecules. The present invention also provides methods of reducing the immunogenicity of RNA, oligoribonucleotide, and polyribonucleotide molecules.

The disclosure provides, e.g., compositions, systems, and methods for targeting, editing, modifying, or manipulating a host cell's genome at one or more locations in a DNA sequence in a cell, tissue, or subject. Gene modifying systems for treating cystic fibrosis, e.g., in subjects having a mutation resulting in F508del, are described.

The present disclosure provides a variant AAV capsid protein that confers tropism to lung cells and recombinant adeno-associated viruses comprising the variant A.AV and pharmaceutical compositions comprising same and their use in the delivery of heterologous nucleic acids to lung cells for the treatment of pulmonary disorders.

The present invention relates to a nucleotide-modified messenger RNA for the permanent correction of a genetic alteration on a DNA. The invention further relates to a nucleotide-modified messenger RNA in combination with a repair template. It also relates to a pharmaceutical composition. It finally relates to methods for the correction of a genetic alteration on a DNA.