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A chimera created from rat and mouse cells.

Credit: Salk Institute

Animals

Human-Pig Embryos Have Arrived, Holding Promise for Organ Transplants

The creation of a human-pig chimera paves the way for growing human cells, tissues and organs for regenerative medicine.

January 26, 2017
12:00 PM EST
Photo: Rat-mouse chimera as a 1-year-old. Credit: Juan Carlos Izpisua Belmonte
Photo: An injection of human cells into a pig embryo cell. A laser beam (green circle with a red cross inside) was used to perforate an opening to the outer membrane of the pig cell to allow easy access of an injection needle delivering human cells. Credit: Juan Carlos Izpisua Belmonte
Image: Magnified view of human cells (green) contributing to a developing heart of 4-week-old pig embryo. Credit: Salk Institute