Abstract: Disclosed are an optimization method and apparatus for compiling computation graph. The optimization method includes the following steps: step S1: converting a computation graph into an intermediate representation; step S2: analyzing a dependency relationship; step S3: constructing a work stack; step S4: performing initialization to achieve a nonactivated state; step S5: popping out stack top node elements, and updating an input node set in a current round of iteration; step S6: adding the stack top node elements that depend on step S5 to a stack top position in sequence until the work stack is empty; step S7: implementing an intermediate representation in a fixed node state using a bit vector; and step S8: allocating registers for effective tensor variables contained in nodes of the intermediate representation in the fixed node state.

Abstract: Provided are methods for producing population of cells enriched for cells exhibiting sinoatrial node like characteristics. The cells can be produced from human pluripotent cells. Also provided are methods for using the SAN-like cells for identifying agents that can mitigate drug-induced cardiac toxicity. Also provided is a method for mitigating drug induced cardiotoxicity comprising administering to a subject an effective amount of physcion or a derivative thereof.

Abstract: Provided are compositions and methods for promoting osteogenic differentiation of undifferentiated cells, such as stem cells. An example of a compound useful in the present method is 6,8-dimethyl-3-(4-phenyl-1H-imidazol-5-yl)quinolin-2(1H)-one (DIPQUO). The present methods can be used for treatment and prevention of bone disorders.

Abstract: Provided are compounds and compositions for prevention and/or elimination of Zika virus infection. Also provided are methods for preventing and treating a subject in need of prevention or treatment of Zika virus.

Abstract: Provided are compositions and methods for promoting osteogenic differentiation of undifferentiated cells, such as stem cells. An example of a compound useful in the present method is 6,8-dimethyl-3-(4-phenyl-1H-imidazol-5-yl)quinolin-2(1H)-one (DIPQUO). The present methods can be used for treatment and prevention of bone disorders.

Abstract: Compositions and methods are provided for generation of a population of monohormonal from human pluripotent cells. The method comprises sequentially exposing pluripotent stem cells to medium comprising CHIR99021 and Activin A; medium comprising Activin A; medium comprising FGF7; medium comprising retinoic acid, LDN193189, SANT1; medium comprising retinoic acid, LDN193189, SANT1, EGF and FGF2; and differentiation medium. A majority of cells in the population are monohormonal cells produce insulin, but not glucagon, somatostatin or ghrelin.

Abstract: Provided are compounds and compositions for prevention and/or elimination of Zika virus infection. Also provided are methods for preventing and treating a subject in need of prevention or treatment of Zika virus.

Abstract: The presently disclosed subject matter relates to use of Schwann cell precursors and Schwann cells derived from stem cells (e.g., human stem cells) for drug discovery in regeneration of peripheral nervous system (PNS) and/or central nervous system (CNS), prevention and/or repair myelin damages, and/or prevention and/or treatment of Schwann cell-related disorder (e.g., peripheral neuropathy diabetic peripheral neuropathy).

Abstract: The present invention provides compounds, compositions and methods for dedifferentiating lineage committed mammalian cells into stem cells. The present invention also provides methods of inducing dedifferentiation of lineage committed mammalian cells into stem cells, which can be further differentiated into various lineage committed cells. Methods of identifying additional compounds useful for inducing dedifferentiation of lineage committed cells into stem cells are also provided.

Abstract: Certain embodiments disclosed herein are directed to a method of producing pancreatic cells or pancreatic cell precursors by exposing human embryonic stem cells to an effective amount of at least one compound listed in Table I to differentiate the human embryonic stem cells into the pancreatic cells or the pancreatic cell precursors. Kits and pancreatic cell lines produced using the methods are also described.

Abstract: The invention provides for a method of inhibiting interferon-beta gene expression and/or reducing the level of interferon-beta in a cell by contacting the cell with a Na+, Ca2+, or K+ ion-channel modulator. The invention also provides for a method of treating a disease or disorder characterized by elevated interferon beta levels or elevated levels of interferon-beta gene expression. Additionally, the invention provides a method for treating pathogenic or non-pathogenic infections.

Abstract: Certain embodiments disclosed herein are directed to a method of producing endoderm cells, such as definitive endoderm cells by exposing stem cells such as embryonic stem cells or induced pluripotent stem (iPS) cells to an effective amount of at least one compound described herein to differentiate the stem cells into the endoderm cells such as definitive endoderm cells. Differentated endoderm cells produced by the methods disclosed herein can be differentiated into pancreatic epithelium, and other endoderm derivatives such as thymus, liver, stomach, intestine and lung. Another aspect of the present invention relates to a method of producing pancreatic progenitor cells, such as Pdx1-positive pancreatic progenitor cells by exposing endoderm cells, such as definitive endoderm cells to an effective amount of at least one compound described herein to differentiate the definitive endoderm cells into Pdx1-positive pancreatic progenitor cells.

Abstract: The present invention provides compounds, compositions and methods for dedifferentiating lineage committed mammalian cells into stem cells. The present invention also provides methods of inducing dedifferentiation of lineage committed mammalian cells into stem cells, which can be further differentiated into various lineage committed cells. Methods of identifying additional compounds useful for inducing dedifferentiation of lineage committed cells into stem cells are also provided.

Abstract: The present invention provides 2,6-disubstituted purine compounds, compositions and methods for dedifferentiating lineage committed mammalian cells into stem cells. The present invention also provides methods of inducing dedifferentiation of lineage committed mammalian cells into stem cells, which can be further differentiated into various lineage committed cells. Methods of identifying additional 2,6-disubstituted purine compounds useful for inducing dedifferentiation of lineage committed cells into stem cells are also provided.

Abstract: Certain embodiments disclosed herein are directed to a method of producing endoderm cells, such as definitive endoderm cells by exposing stem cells such as embryonic stem cells or induced pluripotent stem (iPS) cells to an effective amount of at least one compound described herein to differentiate the stem cells into the endoderm cells such as definitive endoderm cells. Differentated endoderm cells produced by the methods disclosed herein can be differentiated into pancreatic epithelium, and other endoderm derivatives such as thymus, liver, stomach, intestine and lung. Another aspect of the present invention relates to a method of producing pancreatic progenitor cells, such as Pdx1-positive pancreatic progenitor cells by exposing endoderm cells, such as definitive endoderm cells to an effective amount of at least one compound described herein to differentiate the definitive endoderm cells into Pdx1-positive pancreatic progenitor cells.

Abstract: The present invention provides compounds, compositions and methods for dedifferentiating lineage committed mammalian cells into stem cells. The present invention also provides methods of inducing dedifferentiation of lineage committed mammalian cells into stem cells, which can be further differentiated into various lineage committed cells. Methods of identifying additional compounds useful for inducing dedifferentiation of lineage committed cells into stem cells are also provided.

Abstract: Certain embodiments disclosed herein are directed to a method of producing pancreatic cells or pancreatic cell precursors by exposing human embryonic stem cells to an effective amount of at least one compound listed in Table I to differentiate the human embryonic stem cells into the pancreatic cells or the pancreatic cell precursors. Kits and pancreatic cell lines produced using the methods are also described.

Abstract: The present invention relates to methods and compositions for culturing embryonic stem (ES) cells. The methods relate to growing the ES cells in the presence of small molecules of formula (I) that maintain the pluripotency/self-renewal of the cells without feeder cells and LIF in serum-free conditions. These methods in part facilitate much more consistency in embryonic stem cell production, providing, for example, new avenues in the practical applications of embryonic stem cells in regenerative medicine.

Abstract: The present invention provides compounds, compositions and methods for dedifferentiating lineage committed mammalian cells into stem cells. The present invention also provides methods of inducing dedifferentiation of lineage committed mammalian cells into stem cells, which can be further differentiated into various lineage committed cells. Methods of identifying additional compounds useful for inducing dedifferentiation of lineage committed cells into stem cells are also provided.

Abstract: The present invention provides compositions and methods for dedifferentiating lineage committed mammalian cells.