Abstract: Provided herein are methods of producing an antibody composition comprising determining the relative unpaired afucosylated glycan content and/or the relative unpaired high mannose glycan content of a sample of the antibody composition and selecting the antibody composition for downstream processing based on the relative unpaired afucosylated glycan content and/or relative unpaired high mannose glycan content and/or the ADCC level of the antibody composition. Related methods of determining the relative unpaired glycan content of an antibody composition and methods of modifying the ADCC level of an antibody composition are provided herein.

Abstract: The present disclosure provides a method of controlling the Antibody Dependent Cellular Cytotoxicity (ADCC) activity of a glycosylated and afucosylated IgG1 antibody composition. In exemplary embodiments, the method includes (1) determining the ADCC activity of a glycosylated and afucosylated IgG1 antibody composition; and (2) increasing or decreasing the ADCC activity of the IgG1 antibody composition by increasing or decreasing the amount of terminal ?-galactose in the afucosylated glycan species at the consensus glycosylation site. Related methods of matching ADCC activity of a reference glycosylated and afucosylated IgG1 antibody composition and methods of engineering a specific target ADCC activity of a glycosylated and afucosylated IgG1 antibody composition are further provided herein.

Abstract: The present invention concerns a method for preparing liposomes, said method comprising the following steps: (I) mixing at least one liposome-forming lipid, a water-miscible organic solvent and aqueous medium Y to form a gel or liquid containing gel particles without sonication; and thereafter (II) (a) mixing the gel or liquid containing gel particles with aqueous medium Z1 to directly form the liposomes; (b) (i) mixing the gel or liquid containing gel particles with aqueous medium Z1 to form a curd or curdy substance; and (ii) mixing the curd or curdy substance with aqueous medium Z2 to directly form the liposomes; or (c) (i) cooling the gel or liquid containing gel particles to form a waxy substance; and (ii) mixing the waxy substance with aqueous medium Z1 to directly form the liposomes; wherein aqueous media Y, Z1 and Z2 are the same or different.

Abstract: A method for preparing liposomes containing at least one biologically active substance encapsulated therein under mild conditions comprises the following steps: (A) providing liposomes, wherein the liposomes are prepared by a method other than the instant method; (B) mixing the product of step (A) with a water-miscible organic solvent to form a gel or a liquid containing gel particles; and thereafter (C) (a) mixing the gel or liquid containing gel particles with aqueous medium V to directly form the liposomes containing the at least one biologically active substance encapsulated therein, (b) (i) mixing the gel or liquid containing gel particles with aqueous medium V to form a curd or curdy substance; and (ii) mixing the curd or curdy substance with aqueous medium W to directly form the liposomes containing the at least one biologically active substance encapsulated therein, or (c) (i) cooling the gel or liquid containing gel particles to form a waxy substance; and (ii) mixing the waxy substance with aqueous m