Abstract: Aspects of the invention relate to compositions comprising one or more live bacterial strains for topical administration to the skin, wherein the one or more live bacterial strains are Propionibacterium acnes (P. acnes) bacterial strains, and methods for use.

Abstract: The present disclosure provides efficient and precise programmable gene delivery technology based on a composition comprising (i) a first protein comprising or consisting of a site-specific DNA binding protein capable of binding and cleaving a target nucleic acid sequence; or a nucleic acid construct encoding said first protein; and (ii) a second protein comprising or consisting of a transposase; or a nucleic acid construct encoding said second protein; wherein said transposase is a modified hyperactive PiggyBac.

Abstract: Described here are methods, compositions, and systems for generating transgenic islet cells suitable for xenotransplantation.

Abstract: Aspects of the invention relate to compositions comprising two or more live bacterial strains for topical administration to the skin, wherein the two or more live bacterial strains are Propionibacterium acnes (P. acnes) bacterial strains, and methods for use.

Abstract: Provided are cells, tissues, organs, and/or animals having one or more modified genes for enhanced xenograft survival and/or tolerance. And methods of producing and using the cells, tissues, organs, and/or animals.

Abstract: A nucleic acid constructs are used in improving site-specific insertion of an exogenous nucleic acid into a genome. In some aspects the nucleic acid construct having a first polynucleotide sequence encoding a DNA binding protein engineered to bind to a specific genomic DNA sequence, a second polynucleotide having a modified integrase or a modified transposase that enables insertion of exogenous nucleic acid into the genome, and a nucleic acid sequence encoding a linker between the two nucleotides. In some aspects, the nucleic acid construct encodes a fusion protein, for example, a fusion protein for delivery to a cell by a lentiviral particle.

Abstract: Methods are provided for altering target DNA in a cell genetically modified to express a Cas 9 enzyme that forms a co-localization complex with a guide RNA complementary to the target DNA and that cleaves the target DNA in a site specific manner Methods include introducing into the cell a first foreign nucleic acid encoding a donor nucleic acid sequence, introducing into the cell from media surrounding the cell the guide RNA complementary to the target DNA and which guides the Cas 9 enzyme to the target DNA, wherein the RNA and the enzyme are members of a co-localization complex for the target DNA, wherein the donor nucleic acid sequence is expressed, wherein the guide RNA and the Cas 9 enzyme co-localize to the target DNA, the Cas 9 enzyme cleaves the target DNA and the donor nucleic acid is inserted into the target DNA to produce altered DNA in the cell.

Abstract: Methods are provided for altering target DNA in a cell genetically modified to express a Cas 9 enzyme that forms a co-localization complex with a guide RNA complementary to the target DNA and that cleaves the target DNA in a site specific manner. Methods include introducing into the cell a first foreign nucleic acid encoding a donor nucleic acid sequence, introducing into the cell from media surrounding the cell the guide RNA complementary to the target DNA and which guides the Cas 9 enzyme to the target DNA, wherein the RNA and the enzyme are members of a co-localization complex for the target DNA, wherein the donor nucleic acid sequence is expressed, wherein the guide RNA and the Cas 9 enzyme co-localize to the target DNA, the Cas 9 enzyme cleaves the target DNA and the donor nucleic acid is inserted into the target DNA to produce altered DNA in the cell.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: Aspects of the invention relate to compositions comprising two or more live bacterial strains for topical administration to the skin, wherein the two or more live bacterial strains are Propionibacterium acnes (P. acnes) bacterial strains, and methods for use.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: Aspects of the invention relate to compositions comprising one or more live bacterial strains for topical administration to the skin, wherein the one or more live bacterial strains are Propionibacterium acnes (P. acnes) bacterial strains, and methods for use.

Abstract: Aspects of the invention relate to compositions comprising one or more live bacterial strains for topical administration to the skin, wherein the one or more live bacterial strains are Propionibacterium acnes (P. acnes) bacterial strains, and methods for use.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: Methods are provided for the use of Cas9 in genome engineering of stem cells. Methods include introducing into the stem cell a first foreign nucleic acid encoding a guide RNA complementary to a target DNA and which guides a Cas9 enzyme to the target DNA, wherein the RNA and the enzyme are members of a co-localization complex for the target DNA, introducing into the stem cell a second foreign nucleic acid encoding a donor nucleic acid sequence, wherein the guide RNA and the donor nucleic acid sequences are expressed, wherein the guide RNA and the Cas 9 enzyme co-localize to the target DNA, the Cas 9 enzyme cleaves the target DNA and the donor nucleic acid is inserted into the target DNA to produce altered DNA in the stem cell.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.

Abstract: Aspects of the invention relate to compositions comprising two or more live bacterial strains for topical administration to the skin, wherein the two or more live bacterial strains are Propionibacterium acnes (P. acnes) bacterial strains, and methods for use.

Abstract: A method of modulating some or all copies of a gene in a cell is provided including introducing into a cell one or more ribonucleic acid (RNA) sequences that comprise a portion that is complementary to all or a portion of each of the one or more target nucleic acid sequences, and a nucleic acid sequence that encodes a Cas protein and maintaining the cells under conditions in which the Cas protein is expressed and the Cas protein binds and modulates the one or more target nucleic acid sequences in the cell.