Abstract:
Systems and methods for growing cells are provided. A capsule for growing or storing cells includes a shell defining an interior compartment and a substrate for cell attachment located within the compartment. The substrate comprises a polymer and one or more adhesion molecules. The substrate for cell attachment can be an inner surface of the shell and/or a hydrogel disposed within the interior compartment. The capsule can further include a cell, such as a stem cell, adhered to the substrate
Abstract:
The present disclosure provides an enriched artificial cerebrospinal fluid (EA-CSF) composition comprising: an electrolyte containing solution comprising at least one electrolyte selected from the group consisting of sodium ion, potassium ion, calcium ion, magnesium ion, phosphor ion, chloride ion and carbonate ion; and at least one neuroprotective factor. Also provided by the present disclosure are methods for producing the EA-CSF as well as methods of using the same for treating diseases, specifically, neurological diseases.
Abstract:
Methods of enriching non-senescent mesenchymal stem cells (MSCs) and methods of performing quality control for non-senescent MSCs are disclosed. The methods comprise contacting a sample comprising MSCs with a probe (specifically peanut agglutinin, PNA) that binds to a glycan (specifically glycan T-antigen) expressed on the surface of MSCs, with the separation or determination of non-senescent MSCs from senescent MSCs based on a difference in expression of the glycan at the cell surface, i.e. the non-senescent MSCs express more of the glycan than senescent MSCs. A high amount of non-senescent MSCs is indicative of a sample of acceptable quality.
Abstract:
Inhibiting p53 or Bax can be used to improve nuclease-mediated gene targeting frequencies in stem cells. This inhibition can be achieved, e.g., by overexpression of anti-apoptosis proteins or by silencing or reducing p53 or Bax expression. This technique can be used in conjunction with other rapidly developing CRISPR technologies, including improvements in specificity, other types of nucleases, and further enrichment, screening, and selection schemes, to expand the use of stem cells in experimental studies and tissue engineering for therapeutic purposes.
Abstract:
Stabilized amorphous calcium carbonate (ACC) as a supplement of cell culture media and the cell culture medium supplements comprising stabilized ACC are provided. In particular the stabilized ACC is useful for enhancing the growth of cell and tissue cultures, gametes and embryos in vitro.
Abstract:
The invention provides new culture media and methods for hPCs' isolation and expansion using said media, which provide significant advantages over known culture media and isolation and expansion methods. These culture media are characterized by the presence of a nitric oxide donor. In addition the culture media of the invention are preferably serum supplemented or serum-free.
Abstract:
Disclosed herein are compositions and methods involving stem cells biopreserved on microcarriers, which can be thawed and expanded, all while maintaining their key attributes, such as their proliferative capacity, identity, functionality, and potency. Disclosed is a method for generating microcarriers-seeded-stem cells, as well as a post biopreservation procedure for thawing and inoculating bioreactors to achieve a rapid and scalable stem cells expansion.
Abstract:
A cell culture article is provided. The cell culture substrate includes a polygalacturonic acid compound selected from at least one of: pectic acid or salts thereof, and partially esterified pectic acid having a degree of esterification from 1 to 40 mol% or salts thereof. The polygalacturonic acid compound is crosslinked with a divalent cation and the divalent cation concentration ranges from 0.5 to 2 g/l of the substrate.
Abstract:
Method of changing the pluripotent state or progenitor state of stem cells or progenitor cells towards a specific lineage or tissue cell type, comprising at least one of: generate cells expressing critical cell fate genes (collectively referred as stem cells), including key cell fate factors and fusions between conventional transcription factors (TFs) with transactivation domains, optimized for directing stem cells towards different types of cells; introducing these factors as synthetic messenger RNA (mRNA) into cultured pluripotent stem cells at the preferred density by methods that result in appropriate levels of transgene expression; maintaining cell under optimized conditions to result in high efficiency of specific differentiation.