Patent classifications
C12N5/0793
CELL-CONTAINING VESSEL AND METHOD FOR PRODUCING NEURAL CELL-CONTAINING SPHEROID
The invention provides a cell-containing vessel comprising a plurality of neural cell-containing spheroids for which the variation calculated using the calculation method described below is less than 20%, wherein the neural cell-containing spheroids contain a plurality of types of cells including neural cells,
(Calculation Method)
Calcium transient assays are conducted for each of a plurality of neural cell-containing spheroids, a number of spontaneous oscillations in a 10-minute period is measured, an average and standard deviation for the number of spontaneous oscillations are calculated, and a variation is calculated using formula (1) below:
Variation (%)=standard deviation for number of spontaneous oscillations/average number of spontaneous oscillations×100 (1).
METHOD OF PRODUCING CELL-CONTAINING CONTAINER
A method of producing a cell-containing container is provided, including a process in which pluripotent stem cells that have been induced to differentiate into neurons, and astrocytes are mixed and seeded in a cell culture container in which an electrode array is arranged on a culture surface, and a process in which the cell culture container is incubated, and as a result, the pluripotent stem cells and the astrocytes adhere to the culture surface, and the pluripotent stem cells differentiate into neurons.
METHOD FOR GENERATING A THREE-DIMENSIONAL NEUROMUSCULAR ORGANOID IN VITRO
A method for generating a three-dimensional neuromuscular organoid in vitro is disclosed. This method comprises the following steps: a) providing a first cell culture comprising neuromesodermal progenitor cells and cultivating the neuromesodermal progenitor cells in a first differentiation medium chosen from the group consisting of i) a non-supplemented serum-free cell culture medium and ii) a serum-free cell culture medium supplemented with at least one of a ROCK inhibitor, an activator of a growth factor signaling pathway, and an activator of an insulin signaling pathway; b) replacing the first differentiation medium by a second differentiation medium within 1 to 3 days after cultivation start, wherein the second differentiation medium is chosen from the group consisting of i) a non-supplemented serum-free cell culture medium and ii) a serum-free cell culture medium supplemented with at least one of an activator of a growth factor signaling pathway, and an activator of an insulin signaling pathway; c) replacing the second differentiation medium by a non-supplemented serum-free cell culture medium within 1 to 3 days after replacing the first differentiation medium by the second differentiation medium; and d) obtaining a three-dimensional neuromuscular organoid from the non-supplemented serum-free cell culture medium.
GENERATION OF NOREPINEPHRINE NEURONS FROM HUMAN STEM CELLS
Methods for obtaining populations of norepinephrine (NE) neuronal progenitor cells and creating enriched populations of NE neurons are provided herein. Also provided herein are methods for obtaining genetically modified NE neurons expressing a NE sensor or a TH-reporter, and methods for using NE neurons obtained according to the methods of this disclosure.
Compositions, systems, and methods for generating inner ear hair cells for treatment of hearing loss
Method and compositions for inducing the self-renewal of stem/progenitor supporting cells comprised by a cochlear cell population, including inducing the stem/progenitor cells to proliferate while maintaining, in the daughter cells, the capacity to differentiate into hair cells.
Efficient delivery of therapeutic molecules to cells of the inner ear
Compositions and provided to induce cells of the inner ear to renter the cell cycle and to proliferate. In particular, hair cells are induced to proliferate by administration of a composition which activates the Myc and Notch. Supporting cells are induced to transdifferentiate to hair cells by inhibition of Myc and Notch activity or the activation of Atoh1. Methods of treatment include the intracellular delivery of these molecules to a specific therapeutic target.
Method for producing retinal tissue
The present invention provides a method for producing a retinal cell or a retinal tissue, including the following steps (1)-(3): (1) a first step of culturing pluripotent stem cells in the absence of feeder cells in a medium containing 1) a TGFβ family signal transduction pathway inhibiting substance and/or a Sonic hedgehog signal transduction pathway activating substance, and 2) a factor for maintaining undifferentiated state, (2) a second step of culturing the cells obtained in the first step in suspension in a medium containing a Wnt signal transduction pathway inhibiting substance to form a cell aggregate, and (3) a third step of culturing the aggregate obtained in the second step in suspension in the presence or absence of a Wnt signal transduction pathway inhibiting substance in a medium containing a BMP signal transduction pathway activating substance to obtain an aggregate containing a retinal cell or a retinal tissue.
COMPOSITIONS COMPRISING STEM CELLS EXPRESSING MESENCHYMAL AND NEURONAL MARKERS AND USES THEREOF TO TREAT NEUROLOGICAL DISEASE
The present disclosure relates to a cryopreserved pharmaceutical composition comprising immature dental pulp stem cells (IDPSCs) expressing SOX-1 and SOX-2 and methods of treating a neurological disease or condition comprising systemically administering to a subject a cryopreserved pharmaceutical composition comprising IDPSCs expressing SOX-1 and SOX-2.
PROTEASE-ACTIVATED RECEPTOR-2 INHIBITORS FOR THE TREATMENT OF SENSORY NEUROPATHY INDUCED BY A MARINE NEUROTOXIC POISONING
The present invention relates to the treatment of sensory neuropathy induced by a marine neurotoxic poisoning. The invention further encompasses an in vitro method for producing a neuro-cutaneous model allowing to study the cellular and/or molecular mechanisms involved in said neuropathy, a neuro-cutaneous model obtainable according to said method, and applications thereof.
COMPOSITIONS AND METHODS FOR MAKING SENSORY NEURONS
The three main peripheral sensory neuron (SN) subtypes, nociceptors, mechanoreceptors, and proprioceptors localize to dorsal root ganglia (DRG) and convey sensations such as pain, temperature, pressure and limb movement/position. Disclosed herein is a chemically defined differentiation protocol that generates all three SN subtypes from the same starting population, as well as methods to enrich for each individual subtypes. The protocol yields high efficiency and purity cultures that are electrically active and respond to specific stimuli. Their molecular character and maturity stage are described and evidence for their use as an axotomy model is exemplified. Cell populations and compositions formed from the resulting cells, as well as methods of their use for disease treatment, drug screening, and modeling of human disorders affecting SNs are also provided.