Abstract: Methods of modulating the properties of a cell culture expressing a protein of interest are provided. In various embodiments the methods relate to the addition of cell-cycle inhibitors to growing cell cultures.

Abstract: Methods of modulating high mannose glycoform content of a protein in a cell culture by contacting the cells expressing the protein of interest with monesin are provided.

Abstract: Provided herein are methods for assessing cell surface glycans, e.g., N-glycans, by assessing a sample of released surface glycans, and determining the presence, absence, or level of glycans present in the sample. Also provided are methods of assaying and/or evaluating a cell composition by assessing the cell surface glycan profile of the cell composition and comparing the profile to a reference sample. Methods for manufacturing and/or culturing a plurality of cell compositions having consistent surface glycan expression with low variability are also provided.

Abstract: The present disclosure provides methods for genetically engineering T cells, such as CD4+ T cells and/or CD8+ T cells, for use in cell therapy. In some aspects, the provided methods include one or more steps for pooling enriched CD4+ and CD8+ cells, such as at a 1:1 ratio, and then incubating the cells under stimulating conditions, introducing a recombinant polypeptide to the cells through transduction or transfection, and/or cultivating the cells under conditions that promote proliferation and/or expansion. In some aspects, the provided methods are an efficient, reliable means to produce genetically engineered T cells with a high degree of success.

Abstract: Provided herein are methods and compositions for generating engineered cells, such as cells expressing a recombinant receptor, including methods involving stimulation and/or engineering of an input composition having a defined ratio of naive-like CD4+ T cells to naive-like CD8+ T cells. In particular, the methods can be used to engineer T cells with genetically engineered receptors, such as genetically engineered antigen receptors such as engineered (recombinant) TCRs and chimeric antigen receptors (CARs), or other recombinant chimeric receptors. Features of the methods include producing a more consistent and/or predictable T cell product and/or a product with lower toxicity compared with other methods.

Abstract: Methods of modulating high mannose glycoform content of a protein in a cell culture by contacting the cells expressing the protein of interest with monesin are provided.

Abstract: Compounds of Formula (I) are useful as modulators of glycosylation. Compounds of Formula (I) have the following structure: (I) and the definitions of the other variables are provided herein.

Abstract: Compounds of Formula (I) are useful as modulators of glycosylation. Compounds of Formula (I) have the following structure: (I) and the definitions of the other variables are provided herein.