The present invention relates to a gel composition containing at least one selected from the group consisting of an extracellular matrix component and a fragmented extracellular matrix component, and an ion of a metal element.

The present invention provides a medium composition containing deacylated gellan gum or a salt thereof, and an acidic polysaccharide or a salt thereof capable of maintaining a random coil state in a divalent metal cation medium and cross-linking via a divalent metal ion, and permitting culture of a cell or a tissue in suspension, wherein a concentration of the deacylated gellan gum or a salt thereof in the medium composition is 0.002-0.01 (w/v) %, a concentration of the acidic polysaccharide or a salt thereof is 0.004-0.1 (w/v) %, and a mass ratio of the acidic polysaccharide or a salt thereof to the deacylated gellan gum or a salt thereof is not less than 1. In addition, the present invention provides a method for isolating a cell or tissue from a culture preparation containing the medium composition and cell or tissue, including applying a shear force to the culture preparation.

The present invention pertains to a cell culture medium comprising copper as a media supplement, which was shown to control recombinant protein glycosylation and methods of using thereof. The present invention further pertains to a method of controlling or manipulating glycosylation of a recombinant protein of interest in a large scale cell culture.

A method of coating a surface with nanoparticles for biological analysis of cells that includes the steps of cleaning the surface with an oxidizing acid, treating the surface with an organosilane, coating the surface with nanoparticles, and then growing cells on the surface coated with the nanoparticles. The surface may be a glass surface, a silica-based surface, a plastic-based surface or a polymer-based surface. The nanoparticles may be gold-based nanomaterials.

Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.

The present invention relates to oligopeptide-free cell culture media comprising at least 0.5 mg/L of a polyamine and to methods for cultivating cells in said oligopeptide-free cell culture media comprising at least 0.5 mg/L of a polyamine. The invention also relates to methods for expressing at least one protein in a medium comprising at least 0.5 mg/L of a polyamine and to methods for producing at least one virus in a medium comprising at least 0.5 mg/L of a polyamine.

The invention relates to a method for preparing a liquid medium which is characterized by dissolving a desired component efficiently by controlling an amount of supplied oxygen, a liquid medium prepared by the preparation method, a method for culturing cells using the liquid medium prepared by the preparation method, a method for producing a physiologically active substance having desired quality using the culture method, and a physiologically active substance having desired quality produced by using the production method.

Provided herein is are methods of preventing loss of copper in a solution. The solution is a cell culture medium, cell culture feed or cell culture additive comprising copper (II) and cysteine. The method comprises having substantially the same amount of soluble copper before and after filtering the solution. Also provided are methods of preparing a cell culture medium, cell culture feed or cell culture additive comprising copper (II), cysteine, and other components, without loss of soluble copper. Also provided are methods of culturing a cell or making a biological product comprising use of media prepared according to said methods of preventing loss of copper or preparing said media. Further provided is media prepared according to said methods and use of such media.

The present disclosure relates to a method for the cultivation of primary cells. The primary cells are cultivated in a serum free medium supplemented with peptides and peptones derived from plant or vegetable sources. The method for the cultivation of primary cells may be one step in a method for the amplification of viruses, such as poxviruses.

The preset disclosure provides methods of culturing TILs in a medium comprising at least about 30 mM to at least about 100 mM potassium ion. In some aspects, the methods disclosed herein enhance expansion of CD8.sup.+ TILs, relative to CD4.sup.+ TILs. In some aspects, the methods further increase the number of less-differentiated cells, e.g., less-differentiated TILs, in the population of cells. In some aspects, the methods disclosed herein enrich for tumor-reactive, e.g., tumor specific, TILs such that clonal diversity is preserved. In some aspects, the cells, e.g., the TILs, are administered to a subject in need thereof.

[00001]$17667030.1$