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Scientists have successfully grown embryos (phôi, thai) that contain a combination of human and monkey cells, a major breakthrough in a rapidly advancing field of genetics that researchers say could one day revolutionize (cách mạng hóa) our understanding of human development.

An international team of scientists led by Juan Carlos Izpisua Belmonte from the Salk Institute in La Jolla, Calif., injected human stem cells (tế bào gốc) into monkey embryos (phôi) and observed (quan sát) as the two different sets of cells developed together. None of the embryos survived longer than 19 days, but experts say the experiment still represents a significant step forward in the science of cross-species hybrids — known as chimeras (ngáo ộp; điều hão huyền, điều ảo tưởng)

The same scientists had successfully produced pig and sheep embryos with human cells, but started experimenting with primates after only a tiny percentage of the cells in those tests survived. The researchers hope that someday in the near future fully developed human-animal chimeras might provide insights into the earliest stages of human development, increase understanding of how certain diseases can be treated and even provide organs for human transplants.

The science of combining genes from two animals dates back to the 1970s.

Bài trước: Cũng đáng mà
Tags: science

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