--- title: Scientists Announce Plan to Create Virus-Proof Cells description: Scientists in Genome Project–write (GP-write) announce that they plan to start a project to make cells resistant to viruses. canonical: https://time.com/5261777/scientists-virus-proof-cells/ author: Alexandra Sifferlin article:opinion: false article:content_tier: free article:published_time: 2018-05-01T20:20:15.000Z article:modified_time: 2026-02-23T20:08:51.277Z article:section: Health og:title: Scientists Announce Plan to Create Virus-Proof Cells og:description: "Ultra-safe cells" could potentially be made to be resistant to aging and cancer og:url: https://time.com/5261777/scientists-virus-proof-cells/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt5ddbf447f2317d43/6988c12b196cf42f9e03f847/time-health-stock-tubes.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 5700 og:image:height: 3206 og:image:alt: time-health-stock og:type: article twitter:card: summary_large_image twitter:title: Scientists Announce Plan to Create Virus-Proof Cells twitter:description: "Ultra-safe cells" could potentially be made to be resistant to aging and cancer twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt5ddbf447f2317d43/6988c12b196cf42f9e03f847/time-health-stock-tubes.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # Scientists Announce Plan to Create Virus-Proof Cells > Sponsored content. 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There is no cost and no subscription requirement. ### Sources * TIME Newsletters: [time.com/newsletters](/c/time-nl-network-2026q3/newsletters?i=0a7bd1e8-9c07-4501-8e59-cd5e3504d434&cr=time-nl-network-2026q3-v1) by [Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/) ## Alexandra Sifferlin May 1, 2018 8:20 PM UTC  Test tubes in a holder Test tubes in a holder Getty Images by [Alexandra Sifferlin](https://time.com/author/alexandra-sifferlin/) ## Alexandra Sifferlin May 1, 2018 8:20 PM UTC The scientific group Genome Project-write (GP-write) [announced](https://www.eurekalert.org/pub%5Freleases/2018-05/fhsc-ucr043018.php) on Tuesday that they plan to launch a “grand-scale community-wide project” to develop cells that are resistant to viruses, as well as cells that are potentially resistant to radiation, freezing, aging and cancer. It’s the first step, it says, toward producing “ultra-safe cells” at will. “Ultra-safe cells could have a major impact on human health,” said [George Church](http://time.com/collection/2017-time-100/4742749/george-church/), a geneticist at Harvard Medical School and one of four members of the GP-write Leadership Group, [in a statement](https://www.eurekalert.org/pub%5Freleases/2018-05/fhsc-ucr043018.php). GP-write is kicking off a [working meeting](http://engineeringbiologycenter.org/2018meeting/) Tuesday in Boston. “There is very strong reason to believe that we can produce cells that would be completely resistant to all known viruses,” Jef Boeke, director of the Institute for Systems Genetics at NYU Langone Medical Center and one of the GP-write leaders, [told STAT](https://www.statnews.com/2018/05/01/genome-writers-recoding-human-cells/). “It should also be possible to engineer other traits, including resistance to prions and cancer.” **MORE:** [How Gene Editing Could Save Coral Reefs](http://time.com/5250927/crispr-gene-editing-coral-reefs/) Recoding the human genome to make it virus-resistant is the first stage of the more ambitious goal of the project — to make any genome, including the human genome, in a lab. The effort gained a boost with a new partner, biopharmaceutical company [Cellectis](http://www.cellectis.com/), which will be providing Church’s lab with its virus-targeting technology that relies on the genome editing tool TALEN, which can make highly precise changes to DNA. The group plans to create virus-resistant genes through DNA recoding. Essentially, it’s a way to confuse viruses so they can no longer read the human genome and exploit human genes to help the virus reproduce. Human DNA is ‘read’ in groups of three letters (made up of DNA’s A, C, G and T) known as codons, and each codon represents an amino acid. Strings of amino acids make up proteins. There is redundancy in this system, so different three-letter codons can code for the same amino acid. Recoding the human genome to eliminate this redundancy, so that only one codon codes for a particular amino acid, stumps the virus and prevents it from reproducing. Already, Church showed this approach is feasible by testing genetic changes on the bacteria E. coli; after making 321 changes to the bacteria’s genome, the microbes were resistant to certain viruses. Creating such resistance in human cells, however, will be a much harder feat. “Recoding every protein in the human genome…would require 400,000 changes,” Church said in the statement. Several institutions are slated to participate in the project, which could have major implications for health. In the statement, the researchers cite the fact that viruses can often contaminate medicines while they’re being manufactured, resulting in major financial losses for drug companies. “Ultra-safe cells could thus make pharmaceuticals safer, cheaper and more reliable,” says Church. 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