摘要:
An embryonic stem cell line derived from a nucleus-transferred oocyte prepared by transferring a nucleus of a human somatic cell into an enucleated human oocyte may differentiate into various desired cell types.
摘要:
A variety of methods, devices and compositions are implemented for light-activated molecules. One such method is implemented for generating secondary messengers in a cell. A nucleotide sequence for expressing a chimeric light responsive membrane protein (e.g., rhodopsin) is modified with one or more heterologous receptor subunits {e.g., an adrenergic receptor (alpha1, Beta2)}. The light responsive membrane protein is expressed in a cell for producing a secondary messenger in response to light.
摘要:
The present invention provides methodologies and parameters for fabrication of the hybrid biomaterial by blending pure laminin or complex extracts of tissues containing laminin with biopolymers such as polycaprolactone (PCL), polylactic/polyglycolic acid copolymer (PLGA) or Polydioxanone (PDO) in fluoroalcohols (HFP, TFA), fabrication of substrates and scaffolds and devices from the hybrid biomaterial in forms such as films, nanofibers by electrospinning or microspheres, and the biological or biomedical use of the material or devices derived from it.
摘要:
Methods to treat nervous system conditions. In at least one embodiment of a method of treating a mammalian patient having a neuronal injury or insult of the present disclosure, the method comprises the step of administering a therapeutically-effective dose of a stem cell conditioned medium to a mammalian patient, the stem cell conditioned medium comprising a cell culture supernatant containing at least one factor capable of exerting effective neuroprotection to treat a mammalian neural injury or insult.
摘要:
The present invention provides methods of generating a neuronal cell from a differentiated non-neuronal cell by increasing the amount of a miR-124 microRNA, a MYT1L transcription factor, and a BRN2 transcription factor in the differentiated non-neuronal cell.
摘要:
The present invention relates generally to the field of cell biology of stem cells, more specifically the directed differentiation of pluripotent or multipotent stem cells, including human embryonic stem cells (hESC), somatic stem cells, and induced human pluripotent stem cells (hiPSC) using novel culture conditions. Specifically, methods are provided for obtaining neural tissue, floor plate cells, and placode including induction of neural plate development in hESCs for obtaining midbrain dopamine (DA) neurons, motorneurons, and sensory neurons. Further, neural plate tissue obtained using methods of the present inventions are contemplated for use in co-cultures with other tissues as inducers for shifting differentiation pathways, i.e. patterning.
摘要:
This invention relates generally to methods and compositions for inducing stem cell or progenitor cell differentiation, and more particularly to methods and compositions for inducing differentiation of stem cells and/or progenitor cells into cells that function within the inner ear.
摘要:
Provided herein are compositions comprising non-human animals comprising neurons expressing stabilized step function opsin proteins on neural plasma membranes and methods of using the same to selectively depolarize neurons residing in microcircuits of the pre-frontal cortex to affect one or more social behaviors, communications, and/or conditioned behaviors in the non-human animal.
摘要:
The present invention relates to undifferentiated human embryonic stem cells, methods of cultivation and propagation and production of differentiated cells. In particular it relates to the production of human ES cells capable of yielding somatic differentiated cells in vitro, as well as committed progenitor cells such as neural progenitor cells capable of giving rise to mature somatic cells including neural cells and/or glial cells and uses thereof. This invention provides methods that generate in vitro and in vivo models of controlled differentiation of ES cells towards the neural lineage. The model, and cells that are generated along the pathway of neural differentiation may be used for: the study of the cellular and molecular biology of human neural development, discovery of genes, growth factors, and differentiation factors that play a role in neural differentiation and regeneration, drug discovery and the development of screening assays for teratogenic, toxic and neuroprotective effects.
摘要:
Cultures of cells immunoreactive for glial fibrillary acidic protein (GFAP), as well as for the intermediate filament marker nestin were grown in a medium including epidermal growth factor (EGF) and serum. The cultured cells had the morphology of astroglial cells. The cells can be proliferated in adherent or suspension cultures. Depending on the culture conditions, the cells can be induced to differentiate to neurons or glial cells. The cultures can be expanded over a large number of passages during several months, and survive, express an astroglial phenotype and integrate well after transplantation into both neonatal and adult rat forebrain.