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Reliably Engineering and Controlling Stable Optogenetic Gene Circuits in Mammalian Cells

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Using the Patterned Microarray Culture to Obtain Gene-Editing Monoclonal Cells.

Yunlin Zhang¹, Mengyu Gao², Meijuan Hu²

¹Laboratory of Pathology, Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu, China.

Transplantation Proceedings

|May 29, 2020

Summary

Researchers developed a new microarray method to quickly isolate single cells for genetically modified pigs. This technique efficiently produces monoclonal cells for xenotransplantation research with minimal damage.

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Establishment of Genome-edited Human Pluripotent Stem Cell Lines: From Targeting to Isolation

Establishment of Genome-edited Human Pluripotent Stem Cell Lines: From Targeting to Isolation

Published on: February 2, 2016

Area of Science:

Biotechnology
Xenotransplantation Research
Cell Biology

Background:

Genetically modified pigs are crucial for xenotransplantation.
Monoclonal screening of edited cells before nuclear transfer presents challenges.

Purpose of the Study:

To develop a novel strategy for rapid, low-damage monoclonal cell isolation using microarrays.
To enable efficient, batch production of gene-edited monoclonal cells.

Main Methods:

Utilized micropattern array printing technology toCulture single cells on specific substrates.
Observed single-cell growth into monoclonal spheres over four days.
Confirmed monoclonal cell origin through sequencing.

Main Results:

Micropatterning successfully confined single cells for growth.
Single cells reliably formed monoclonal cell spheres.
Cells detached automatically after culture, facilitating collection.

Conclusions:

The microarray-based method provides an efficient strategy for obtaining monoclonal cells.
This technique minimizes cell damage during isolation for xenotransplantation.
The approach supports scalable production of gene-edited cells.