Invention Grant
- Patent Title: Passaging and harvesting formulation and method for human pluripotent stem cells
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Application No.: US14117687Application Date: 2012-05-17
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Publication No.: US09885019B2Publication Date: 2018-02-06
- Inventor: Ying Nie , Jonathan Allen Rowley , Thomas Fellner , Patrick Walsh
- Applicant: Ying Nie , Jonathan Allen Rowley , Thomas Fellner , Patrick Walsh
- Applicant Address: US MD Walkersville
- Assignee: LONZA WALKERSVILLE INC.
- Current Assignee: LONZA WALKERSVILLE INC.
- Current Assignee Address: US MD Walkersville
- Agency: Saul Ewing Arnstein & Lehr LLP
- Agent Gianna Julian-Arnold
- International Application: PCT/US2012/038321 WO 20120517
- International Announcement: WO2012/158899 WO 20121122
- Main IPC: C12N5/00
- IPC: C12N5/00 ; C12N5/02 ; C12N5/0775 ; C12N5/0735 ; C12N5/074

Abstract:
Formulations and methods are disclosed for the harvesting and subsequent passaging of human pluripotent stem cells without the use of enzymes and/or scraping to dislodge cells from cell culture vessels. The formulations and methods permit the harvesting of cells as large clusters from the surface of various cell culture vessels including multilayer cell culture vessels. Further, the formulations and methods provide high yields of harvested cells for subsequent passaging and high post-harvest cell viability. Pluripotent stem cells passaged with the formulations according to the methods remain undifferentiated and express typical stem cell markers, while, at the same time, they retain the differentiation capability and are able to differentiate into the cells in all three germ layers and generate teratomas, even after numerous rounds of harvesting and passaging. These hPSCs also maintain normal karyo-type after passaged with the formulations for extended period of time.
Public/Granted literature
- US20140212966A1 PASSAGING AND HARVESTING FORMULATION AND METHOD FOR HUMAN PLURIPOTENT STEM CELLS Public/Granted day:2014-07-31
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