On A Platter
Thyroid in a dish
Embryonic stem cells formed hollow, hormone-producing spheres (green) in a lab dish that, when transplanted into mice, worked like a functioning thyroid gland.
Cells following this thyroid development program form hollow, hormone-producing spheres like those found in a normal thyroid gland. Researchers tested the dish-grown glands by transplanting them into mice whose thyroids had been destroyed with radiation. The new organs made hormones and reversed the mice's thyroid problems.
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