Cloned monkeys shed light on circadian disorders

By ZHOU WENTING | China Daily | Updated: 2019-01-24 07:59
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Muming Poo, director of the Institute of Neuroscience of Chinese Academy of Sciences, introduces the significance of the cloned monkey models with circadian rhythm disorders at a press conference in Shanghai, east China, Jan 23, 2019. China has cloned five monkeys from a gene-edited macaque with circadian rhythm disorders, the first time multiple monkeys have been cloned from a gene-edited monkey for biomedical research. Scientists made the announcement Thursday, with two articles published in National Science Review, a top Chinese journal in English. The cloned monkeys were born in Shanghai at Institute of Neuroscience of Chinese Academy of Sciences. [Photo/Xinhua]

The research will also help reduce the quantity of macaques used in biological research around the world, Poo said.

"Without the interference of diverse genetic backgrounds, a much smaller number of cloned monkeys carrying disease phenotypes may be sufficient for preclinical tests of the efficacy of therapeutics," he said.

The donor monkey, despite the presence of the BMAL1 gene, had exhibited circadian disorders-which in humans can lead to other diseases, including sleep disorders, diabetic mellitus, cancer and neurodegenerative disorders such as Alzheimer's disease.

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