The Road to Generating Transplantable Organs: from Blastocyst Complementation to Interspecies Chimeras

Overview

Journal Development

Specialty Biology

Date 2021 Jun 16

PMID 34132325

Citations 18

Authors

Canbin Zheng

Emily B Ballard

Jun Wu

Affiliations

Soon will be listed here.

Abstract

Growing human organs in animals sounds like something from the realm of science fiction, but it may one day become a reality through a technique known as interspecies blastocyst complementation. This technique, which was originally developed to study gene function in development, involves injecting donor pluripotent stem cells into an organogenesis-disabled host embryo, allowing the donor cells to compensate for missing organs or tissues. Although interspecies blastocyst complementation has been achieved between closely related species, such as mice and rats, the situation becomes much more difficult for species that are far apart on the evolutionary tree. This is presumably because of layers of xenogeneic barriers that are a result of divergent evolution. In this Review, we discuss the current status of blastocyst complementation approaches and, in light of recent progress, elaborate on the keys to success for interspecies blastocyst complementation and organ generation.

Citing Articles

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