The fast-expanding array of meat mimics — plant-based, cultured, and fungi-based — are quickly evolving as producers push to match the nutrition, taste, look, feel, smell, and cost of conventional meat. (Eddie Guy / For the Times)


Stepping away from farms: Scientists have discovered a way to grow meat in the lab

Scientists are working on ways to reduce the use of traditional livestock farming, which includes the new technological advancement of growing meat in laboratories
<a href="" target="_self">Rohan Shah</a>

Rohan Shah

August 24, 2023

Scientists at Tufts University have achieved a breakthrough in cellular agriculture, which could revolutionize the production of cultured meat on a large scale. They have successfully created immortalized bovine muscle stem cells that can divide quickly. Unlike traditional methods that rely on live animal muscle cells with limited division potential, these special cells offer a remarkable advantage. By continuously dividing, they provide a sustainable source of meat. 

To accomplish this, the researchers made two crucial modifications to the cells. First, they “engineered the bovine stem cells to constantly rebuild their telomeres,” which are protective caps at the ends of chromosomes that shorten with each cell division. This maintenance of telomeres allows the cells to retain their ability to divide and grow. Second, the cells were altered to produce a protein that stimulates rapid cell division to expedite the growth process.

It is important to note that the muscle stem cells themselves are not consumed as meat directly. They must further mature into muscle cells that closely resemble the meat we typically eat. While the newly developed stem cells have shown promise in this differentiation process, further research is necessary to determine if they can accurately replicate the taste and texture of natural meat. 

Regarding concerns about the safety of consuming immortalized cells, it is crucial to understand that these cells lose their ability to continue growing after being harvested, stored, cooked, and digested. Once consumed, they become inert material that provides nutritional benefits akin to natural meat. 

The creation of immortalized bovine muscle stem cells marks a significant advancement in cultured meat production. These cells present a promising solution to address the increasing demand for meat while reducing dependence on traditional livestock farming. With ongoing research and refinement, the prospect of large-scale and sustainable cultured meat production becomes increasingly attainable.

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