The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
Nov. 16, 2017
University of South Carolina, Columbia, SC (US);
Esmaiel Jabbari, Bethesda, MD (US);
University of South Carolina, Columbia, SC (US);
Abstract
A three-dimensional cell culture system that includes a keratin-based hydrogel precursor solution and a cell culture vessel is provided. The precursor solution includes solubilized keratin that has been functionalized to include a crosslinking moiety. The crosslinking moiety exhibits controllable crosslinking, e.g., a photopolymerizable crosslinking moiety. The crosslinking functionality is bonded to the keratin via cysteines following reduction of disulfide bonds of the native keratin. The precursor solution can be combined with cells to form a cell suspension that is disposed on a surface of the cell culture vessel. Alternatively, the cells can be added to a surface of a keratin-based hydrogel that has been formed on a surface of the cell culture vessel. The resulting three-dimensional cell culture system is a biomimetic/biologic, trypsin-degradable cell culture system for expansion of mammalian cells. The expanded cells are expected to possess a morphology similar to the primary cells prior to cultivation.