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This excellent Bloomberg article clarifies that all lab meat is grown as immortalized tumor cells. As the article explains, these same cells are used to produce traditional vaccines.
The big honking asterisk is that normal meat cells don’t just keep dividing forever. To get the cell cultures to grow at rates big enough to power a business, several companies, including the Big Three, are quietly using what are called immortalized cells, something most people have never eaten intentionally. Immortalized cells are a staple of medical research, but they are, technically speaking, precancerous and can be, in some cases, fully cancerous.
Leading scientists agree that cultured meat products won’t give you cancer, but the industry doesn’t have the decades of data to prove it—so it’s trying to avoid the question instead.
The Big Three startups in the field—Believer Meats, Eat Just and Upside Foods—have raised more than $1.2 billion in combined venture funding to bring products to grocery shelves. From the Bay Area to the Middle East, their research facilities and pilot plants are producing small amounts of chicken that, by most accounts, you’d be hard-pressed to tell didn’t come from a slaughterhouse. Late last year, Upside became the first to receive the US Food and Drug Administration’s informal blessing to bring its products to market.
The big honking asterisk is that normal meat cells don’t just keep dividing forever. To get the cell cultures to grow at rates big enough to power a business, several companies, including the Big Three, are quietly using what are called immortalized cells, something most people have never eaten intentionally. Immortalized cells are a staple of medical research, but they are, technically speaking, precancerous and can be, in some cases, fully cancerous.
Don’t worry: Prominent cancer researchers tell Bloomberg Businessweek that because the cells aren’t human, it’s essentially impossible for people who eat them to get cancer from them, or for the precancerous or cancerous cells to replicate inside people at all. Critically, however, there’s no evidence that cultured meat cells are going to become cancerous in a diner’s body. Most of the scientists I spoke with for this story say that worst case, our digestive enzymes would break down any animal cancer cells we ate. If we wanted to, we could eat malignant chicken tumors by the bucketload. “It’s essentially impossible for a cell from one species to gain a foothold in the tissues of another species,” says Weinberg. “So even if one were to take highly malignant cells from a cow and drink them, I don’t see what the problem would be.”
To get the cell cultures to grow at rates big enough to power a business, several companies, including the Big Three
originally posted by: infolurker
“It’s essentially impossible for a cell from one species to gain a foothold in the tissues of another species,” says Weinberg. “So even if one were to take highly malignant cells from a cow and drink them, I don’t see what the problem would be.”
Lab-Grown Meat Is Made of Cancer Cells. Would You Like It Rare or Medium?
Based on their discovery, the researchers hypothesized that altering the structure of chromatin to make it more orderly could be one way of boosting cancer cells’ vulnerability to treatment.
On further investigation, the team found that they could modify chromatin’s structure by altering electrolytes in the nucleus of cancer cells.