Abstract: Non-human animals (and/or non-human cells) and methods of using the same are provided, which non-human animals (and/or non-human cells) have a genome comprising human antibody-encoding sequences (i.e., immunoglobulin genes). Non-human animals described herein express antibodies that contain immunoglobulin (Ig) light chains characterized by the presence of human V? domains. Non-human animals provided herein are, in some embodiments, characterized by expression of antibodies that contain human V? light chains that are encoded by human Ig? light chain-encoding sequences inserted into an endogenous Ig? light chain locus of said non-human animals. Methods for producing antibodies from non-human animals are also provided, which antibodies contain human variable regions and mouse constant regions.

Abstract: Factors for extending the ability of isolated pluripotent stem cells to generate extraembryonic lineages in vivo, following in vitro culture, herein, chemical extenders of pluripotency (CEP). Methods of extending the ability of a pluripotent cell to generate embryonic and extraembryonic lineages. The cell to be reprogrammed is contacted with effective amounts of the CEPs for a sufficient period of time to reprogram the cell into a chemically induced extended pluripotent cell (ciEPSC). ciEPSC are identified as an extended pluripotent cell based on properties including: (i) morphologically and (ii) functionally for example, based on their ability contribute to both TE and ICM, in vivo. The ciEPSCs can be cultured or induced to differentiate into cells of a desired type, and used in a number of applications, including but not limited to cell therapy and tissue engineering.

Abstract: The present disclosure provides methods of treating a disease or delivering a therapeutic agent to a mammal comprising administering to the mammal's deep cerebella nuclei a recombinant adeno-associated virus (rAAV) particle comprising an AAV capsid protein and a vector comprising a nucleic acid encoding a therapeutic agent inserted between a pair of AAV inverted terminal repeats in a manner effective to infect the CNS cell of the non-rodent mammal such that the CNS cell expresses the therapeutic agent in the non-rodent mammal.

Abstract: Non-human animals comprising a human or humanized DPP4 nucleic acid sequence are provided. Non-human animals that comprise a replacement of the endogenous Dpp4 gene with a human or humanized DPP4 gene, or non-human animals comprising a human or humanized DPP4 gene in addition to the endogenous Dpp4 gene are described. Non-human animals comprising a human or humanized DPP4 gene under control of human or non-human DPP4 regulatory elements is also provided, including non-human animals that have a replacement of non-human Dpp4-encoding sequence with human DPP4-encoding sequence at an endogenous non-human Dpp4 locus. Non-human animals comprising human or humanized DPP4 gene sequences, wherein the non-human animals are rodents, e.g., mice or rats, are provided. Methods for making and using the non-human animals are described.

Abstract: Provided is a cell culture medium comprising enriched basal media supplemented with ascorbic acid, a member of the fibroblast growth factor (FGF) superfamily, a transforming growth factor-beta (TGF-beta) superfamily ligand, and a stable glutamine source. Methods of culturing stem cells in such culture medium for extended periods of time, populations of stem cells, and kits are also provided.

Abstract: The present invention relates to the field of mammalian cell culture, and provides methods and compositions for cell attachment to, cultivation on and detachment from a solid substrate surface containing from at least about 0.5% N, a sum of O and N of greater than or equal to 17.2% and a contact angle of at least about 13.9 degrees, lacking a feeder cell layer and lacking an adlayer. In one embodiment of the present invention, the cells are treated with a compound capable of inhibiting Rho kinase activity. In another embodiment, the cells are treated with a compound capable of inhibiting Rho activity.

Abstract: The present disclosure describes methods of differentiating cardiomyocyte progenitor cells and mature cardiomyocyte cells from pluripotent stem cells. The methods may include differentiating pluripotent stems cells on a substrate including (i) laminin-511 or 521 and (ii) laminin 221. The mature cardiomyocyte cells produced by the method may form a human heart muscle cell line for use in regenerative cardiology.

Abstract: Non-human animals, cells, methods and compositions for making and using the same are provided, wherein the non-human animals and cells comprise a humanized B-cell activating factor gene. Non-human animals and cells that express a human or humanized B-cell activating factor protein from an endogenous B-cell activating factor locus are described.

Abstract: Methods of creating mutations in genomic exons by inserting introns into the genomic exons via homologous recombination. Also, methods are provided for introducing modifications into genomic exons by inserting introns into the genomic exons via homologous recombination such that a mature mRNA transcript produced from a genomic region of the genome comprising the genomic exon does not contain the modification are provided. The methods provide for a rapid method for introducing mutations and/or modifications of any type into a mammalian cell genome.

Abstract: Disclosed herein are codon-optimized nucleic acids encoding a reduced-size ATP7A protein. Also disclosed are vectors and recombinant viruses (such as recombinant adeno-associated viruses) including the codon-optimized nucleic acids encoding the reduced-size ATP7A protein and compositions including the disclosed vectors and viruses. Further disclosed herein are methods of treating copper transport disorders, for example by administering a disclosed nucleic acid, vector, or recombinant virus to a subject with a copper transport disorder, such as Menkes disease, occipital horn syndrome, or ATP7A-related distal motor neuropathy.

Abstract: This invention discloses a method for the induction of arterial-type of hemogenic endothelium.

Abstract: The present disclosure provides methods of modulating a feature of a behavioral state. The methods involve inhibiting or activating the activity of a bed nucleus of stria terminalis (BNST) neuron, a BNST subnucleus, or a neuronal output to or from a BNST neuron. Animals encounter environmental conditions that require rapid switching among different behavioral states to increase the likelihood of survival and reproduction.

Abstract: Non-human animals, cells, methods and compositions for making and using the same are provided, wherein the non-human animals and cells comprise a humanized a proliferation-inducing ligand gene. Non-human animals and cells that express a human or humanized a proliferation-inducing ligand protein from an endogenous a proliferation-inducing ligand locus are described.

Abstract: The present invention provides populations of human cardiovascular progenitor cells, methods of making such cells, and methods of using the cells for production of populations of cardiovascular colonies and populations of cardiomyocytes. Methods of cardiomyocytes replacement therapy are also provided.

Abstract: Disclosed are methods for producing a clonal population of cells involving: a) obtaining a population of pluripotent or multipotent cells that have been expanded in vitro and maintained in an undifferentiated or essentially undifferentiated state; b) expanding individualized cells of the population into clonal populations of cells; and c) selecting one or more clonal population of cells determined to have the ability to differentiate into a population that is at least about 50% homogeneous for either neural cell types, hepatocytes, or cardiomyocytes. Also disclosed are clonal populations of cells produced by the methods of the present invention, and methods of treating disease in subjects involving administration of clonal cells of the present invention to a subject. Methods of screening test compounds that involve contacting a test compound with a clonal population of cells produced by the methods of the present invention are also set forth.

Abstract: Non-human animals, and methods and compositions for making and using the same, are provided, wherein said non-human animals comprise a humanization of an endogenous cluster of differentiation (CD) gene, in particular a humanization of a CD47 gene. Said non-human animals may be described, in some embodiments, as having a genetic modification to an endogenous CD47 gene so that said non-human animals express a CD47 polypeptide that includes a human portion and a non-human portion (e.g., a murine portion).

Abstract: Provided is an isolated human naive pluripotent stem cell (PSC), wherein: (i) when the naive PSC is a female PSC, then said naive female PSC has two unmethylated alleles of an X-inactive specific transcript (XIST) gene; and (ii) when said naive PSC is a male PSC, then said naive male PSC has an unmethylated allele of said XIST gene. Also provided is a culture medium which comprises an ERK1/2 inhibitor, a GSK3beta inhibitor, a p38 inhibitor, a JNK inhibitor, a STAT3 activator and at least one agent selected from the group consisting of: bFGF, TGFbeta 1, a PKC inhibitor, a ROCK inhibitor and a NOTCH inhibitor; or at least agent selected from the group consisting of: a TGFR inhibitor, a FGFR inhibitor, a PKC inhibitor, a ROCK inhibitor and a NOTCH inhibitor.

Abstract: The present invention provides tissues derived from animals, which lack any expression of functional alpha 1,3 galactosyltransferase (alpha-1,3-GT). Such tissues can be used in the field of xenotransplantation, such as orthopedic reconstruction and repair, skin repair and internal tissue repair or as medical devices.

Abstract: The disclosure pertains to methods and compositions for treating disorders affecting the central nervous system (CNS). These disorders include neurometabolic disorders such as lysosomal storage diseases that affect the central nervous system, e.g., Niemann-Pick A disease. They also include disorders such as Alzheimer's disease. The disclosed methods involve contacting an axonal ending of a neuron with a composition containing high titer AAV carrying a therapeutic transgene so that the AAV vector is axonally transported in a retrograde fashion and transgene product is expressed distally to the administration site.

Abstract: Methods and compositions are provided for generating F0 fertile XY female animals. The methods and compositions involve making XY pluripotent or totipotent animal cells, in vitro cell cultures, or embryos that are capable of producing a fertile female XY animal in an F0 generation. Such cells, embryos, and animals can be made by silencing a region of the Y chromosome. Optionally, the cells can also be cultured in feminizing medium such as a low-osmolality medium and/or can be modified to decrease the level and/or activity of an Sry protein. Methods and compositions are also provided for silencing a region of the Y chromosome in an XY pluripotent or totipotent animal cell, or in vitro cell cultures, embryos, or animals derived therefrom, by maintaining an XY pluripotent or totipotent animal cell in a feminizing medium.