摘要:
This invention provides an isolated nucleic acid molecule encoding a motor neuron restricted pattern, MNR2, protein. This invention provides an isolated nucleic acid molecule of at least 15 contiguous nucleotides capable of specifically hybridizing with a unique sequence included within the sequence of the nucleic acid molecule encoding a MNR2 protein. This invention provides a purified MNR2 protein, a polyclonal and monoclonal antibody directed to an epitope of an MNR2 protein. This invention provides a method of inducing differentiation somatic motor neurons which comprises expressing MNR2 protein in any neural progenitor cells. This invention provides a transgenic animal which expresses an MNR2 protein. This invention provides a pharmaceutical composition comprising a MNR2 protein and pharmaceutically acceptable carrier. This invention provides methods of treating subjects afflicted with an abnormality associated with a lack of normally functioning motor neurons, neurodegenerative disease, an acute nervous system injury and a neuromuscular disease which comprises contacting the subject with a pharmaceutical composition comprising a MNR2 protein and pharmaceutically acceptable carrier. This invention provides a functionally equivalent analog of MNR2 that induces or prevents MNR2 differentiation of neural progenitor cells.
摘要:
This invention provides an isolated nucleic acid molecule encoding a motor neuron restricted pattern, MNR2, protein. This invention provides an isolated nucleic acid molecule of at least 15 contiguous nucleotides capable of specifically hybridizing with a unique sequence included within the sequence of the nucleic acid molecule encoding a MNR2 protein. This invention provides a purified MNR2 protein, a polyclonal and monoclonal antibody directed to an epitope of an MNR2 protein. This invention provides a method of inducing differentiation somatic motor neurons which comprises expressing MNR2 protein in any neural progenitor cells. This invention provides a transgenic animal which expresses an MNR2 protein. This invention provides a pharmaceutical composition comprising a MNR2 protein and pharmaceutically acceptable carrier. This invention provides methods of treating subjects afflicted with an abnormality associated with a lack of normally functioning motor neurons, neurodegenerative disease, an acute nervous system injury and a neuromuscular disease which comprises contacting the subject with a pharmaceutical composition comprising a MNR2 protein and pharmaceutically acceptable carrier. This invention provides a functionally equivalent analog of MNR2 that induces or prevents MNR2 differentiation of neural progenitor cells.
摘要:
This invention provides isolated nucleic acids encoding a motor neuron restricted MNR2 protein, and a homeobox HB9 protein. Also provided are purified MNR2 and HB9 proteins, antibodies recognizing these proteins, transgenic animals expressing these proteins, and functionally equivalent analogs of these proteins. Finally, methods are disclosed for inducing differentiation of somatic motor neurons, and for treating diseases related to the lack of normally functioning motor neurons, neurodegenerative diseases, acute nervous system injury, and neuromuscular disease.
摘要:
The present invention relates to culture systems comprising differentiated stem cells, that may be used for identifying agents useful in treating degenerative nervous system disorders and are suitable for high-throughput screening applications. It is based, at least in part, on the discovery that co-cultures of (i) astrocytes expressing a mutated SODI gene and (ii) stem-cell derived motor neurons manifested cell death via a Bax-dependent mechanism, and modeled motor neuron death in amyotrophic lateral sclerosis.
摘要:
Provided are genetically engineered cells comprising a neural stem cell and retroviral expression system in the neural stem cell, which is capable of expressing homeodomain transcription factor Nkx6.1 protein but does not express homeodomain transcription factor Irx3 protein or homeodomain transcription factor Nkx2.2 protein; which is capable of expressing homeodomain transcription factor Nkx6.1 protein and homeodomain transcription factor Irx3 protein; and which is capable of expressing homeodomain transcription factor Nkx2.2 protein or homeodomain transcription factor Nkx2.9 protein. Also provided are methods of generating such genetically engineered motor neurons, V2 neurons, and V3 neurons. Also provided are methods of treating subjects having a motor neuron injury or a motor neuron disease comprising implanting in injured/diseased neural tissue of the subject any of the provided genetically engineered cells, administering to such neural tissue retroviral expression systems which are capable of expressing the appropriate homeodomain protein(s), or transfecting neural stem cells with a retroviral vector, which is capable of expressing the required homeodomain transcription factor protein(s). Provided is a method of determining whether a chemical compound affects the generation of a motor neuron from a neural stem cell.
摘要:
This invention provides a composition comprising an amount of a purified protein selected from a group consisting of bone morphogenetic protein 4, bone morphogenetic protein, bone morphogenetic protein 7, dorsalin-1 and combinations thereof effective to stimulate neural crest cell differentiation and an acceptable carrier. This invention provides different uses of this composition.
摘要:
This invention provides an isolated vertebrate nucleic acid molecule encoding F-spondin. This invention also provides a probe comprising a nucleic acid molecule of at least 15 nucleotides capable of specifically hybridizing with a sequence included within the sequence of a nucleic acid molecule encoding a F-spondin. This invention provides a host vector system for the production of a F-spondin. This invention provides purified F-spondin and the uses of compositions containing purified F-spondin. This invention further provides a method of attaching nerve cells to a matrix using purified F-spondin. This invention also provides a method of stimulating nerve cell growth using purified F-spondin. This invention further provides a method of regenerating nerve call using purified F-spondin. Finally, this invention provides a pharmaceutical composition for stimulating nerve cell growth comprising an effective amount of purified F-spondin and a pharmaceutically acceptable carrier.
摘要:
The invention relates to DNA encoding a functional serotonin 5HT1c receptor, e.g., cDNA, and to the isolated, functional serotonin 5HT1c receptor encoded by such DNA. The invention also relates to mammalian cells expressing the cDNA encoding the 5HT1c receptor and to a DNA probe useful for detecting nucleic acid encoding the serotonin 5HT1c receptor. This invention provides methods for determining binding to the serotonin 5HT1c receptor, methods of detecting the expression, and the presence of the serotonin 5HT1c receptor on the surface of a cell and to a method of screening drugs to identify drugs which specifically interact with, and bind to the serotonin 5HT1c receptor on the surface of a cell.
摘要:
Disclosed are methods for generating a neuron expressing Hoxc8 transcription factor or a caudal motor neuron comprising culturing an embryonic stem cell in a composition which is essentially free of retinoids and comprises an isotonic salt solution, so as to generate the neuron which expresses Hoxc8 transcription factor or the caudal motor neuron. Disclosed are also methods for generating a caudal brachial motor neuron, a thoracic motor neuron, or a lumbar motor neuron from an embryonic stem cell in a composition essentially free of retinoids and comprising ADFNK medium, an amount of FGF-2, or Gdf11 respectively. Disclosed are also methods of transplanting a motor neuron into a subject comprising generating the motor neuron and transplanting the motor neuron into the subject. Disclosed is also a population of motor neuron cells enriched for motor neuron cells expressing Foxp1 and expressing a gene associated with Spinal Muscular Atrophy (SMA) or Amyotrophic Lateral Sclerosis (ALS).
摘要:
This invention provides an isolated vertebrate nucleic acid molecule encoding F-spondin. This invention also provides a probe comprising a nucleic acid molecule of at least 15 nucleotides capable of specifically hybridizing with a sequence included within the sequence of a nucleic acid molecule encoding an F-spondin. This invention further provides a method of attaching nerve cells to a matrix comprising contacting the matrix with nerve cells and purified F-spondin at a concentration effective to effect attachment of the cells to the matrix. This invention also provides a method of stimulating growth of a nerve cell comprising contacting the nerve cell with purified F-spondin at a concentration effective to stimulate growth of the nerve cell. This invention provides a method of regenerating nerve cells in a subject comprising administering to the subject purified F-spondin at a concentration effective to regenerate nerve cells in the subject. Finally, this invention provides a pharmaceutical composition comprising a pharmaceutically acceptable carrier and purified F-spondin.