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The flagella that drive bacterial cells or microbial injection systems that are present on a variety of creatures are just two examples of the amazing micromachines that nature has created. Researchers have now developed a delivery system that could transport therapeutic proteins into human and animal cells by using the power of a bacterial injection mechanism. This technique could also offer a new way to deliver gene editing reagents into cells, and could one day be a safe and effective way to treat people with those therapies. The work has been reported in Nature.“Delivery of therapeutic molecules is a major bottleneck for medicine, and we will need a deep bench of options to get these powerful new therapies into the right cells in the body.

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