Creating human-pig chimera embryos

Cell

mass

Egg

Dish

The ultimate goal

To develop a pig with selected, fully transplantable, human organs

3

Hybrid embryo is returned to sow carrying a small fraction of human cells

2

These are introduced into

an early-stage pig embryo

1

Stem cells are made

from adult human cells

Cell mass

Egg

Dish

The ultimate goal

To develop a pig with selected, fully transplantable, human organs

3

Hybrid embryo is returned to sow carrying a small fraction of human cells

2

These are introduced into

an early-stage pig embryo

1

Stem cells are made

from adult human cells