The present invention provides, among other things, effective methods and compositions for delivering messenger RNA (mRNA) via rectal delivery. The present invention is, in part, based on unexpected observation that mRNA may be effectively delivered to the circulation, liver, kidney, colon and/or rectum via rectal delivery despite the barriers such as RNase and mucus layer.

Disclosed herein are recombinant AAV variant (e.g., variant serotype 3B (AAV3B)) capsid proteins and variant capsid protein-containing viral particles with enhanced ability to transduce hepatic cells. Viral particles containing these capsid variants are capable of evading neutralization by the host humoral immune response. The recombinant AAV3B variant proteins and viral particles disclosed herein were identified from a variant AAV3B capsid library that was engineered by making substitutions in only the variable regions of the capsid. Some embodiments of the AAV3B capsid variants disclosed herein comprise the AAV3B-G3 variant and the AAV3B-E12 variant. Compositions of these variant AAV particles are provided that are useful for transducing and delivering therapeutic transgenes to cells, such as liver cells, and thus treat diseases and disorders pertaining to these cells.

Disclosed are methods for treating neurological disorders such as Parkinson's disease (PD) using glutamic acid decarboxylase (GAD) and identifying PD patients that will be most receptive to the method of treating PD. In one aspect, the disclosure provides a method of treating PD in a subject in need thereof, the method comprising: (a) identifying a subject having less than about 10 hours, and preferably less than about 8 hours, of on-time per day; and (b) administering to the subject a composition comprising a therapeutically effective amount of one or more vectors to the subthalamic nucleus of the patient, wherein each vector comprises a nucleic acid sequence encoding glutamic acid decarboxylase (GAD) and wherein the subject's on-time is increased.

The present disclosure provides compositions and methods of restoring or enhancing visual function in an individual by administering to the individual a pharmaceutical composition comprising a recombinant adeno-associated viral (rAAV) vector having a polynucleotide sequence that encodes a medium wavelength cone opsin (MW-opsin). The MW-opsin is expressed in a retinal cell in the individual, thereby restoring or enhancing visual function.

Provided are cells containing exogenous antigen and uses thereof.

Provided are cells containing exogenous antigen and uses thereof.

Disclosed herein are compositions and methods that involve using compositions containing one or more of ETV2, FOXC2, FLI1 and a miR-200b inhibitor for directly reprogramming somatic cells into induced vasculogenic cells both in vitro and in vivo. These compositions and methods are useful for a variety of purposes, including the development of pro-angiogenic therapies.

The present disclosure provides RNA-guided CRISPR-Cas effector proteins, nucleic acids encoding same, and compositions comprising same. The present disclosure provides ribonucleoprotein complexes comprising: an RNA-guided CRISPR-Cas effector protein of the present disclosure; and a guide RNA. The present disclosure provides methods of modifying a target nucleic acid, using an RNA-guided CRISPR-Cas effector protein of the present disclosure and a guide RNA. The present disclosure provides methods of modulating transcription of a target nucleic acid.

The present disclosure provides RNA-guided CRISPR-Cas effector proteins, nucleic acids encoding same, and compositions comprising same. The present disclosure provides ribonucleoprotein complexes comprising: an RNA-guided CRISPR-Cas effector protein of the present disclosure; and a guide RNA. The present disclosure provides methods of modifying a target nucleic acid, using an RNA-guided CRISPR-Cas effector protein of the present disclosure and a guide RNA. The present disclosure provides methods of modulating transcription of a target nucleic acid.

A rAAV vector is described herein which has an AAVhu68 capsid and at least one expression cassette in the capsid. The at least one expression cassette comprises nucleic acid sequences encoding a functional SMN protein and expression control sequences that direct expression of the SMN sequences in a host cell. Also provided are compositions containing this rAAVhu68.SMN vector and methods of using same for spinal muscular atrophy in a patient.