Cell Aging Error Found
Researchers may have mistakenly identified antibodies to a bacterial protein instead of a mammalian protein in dozens of studies on cellular aging. On August 21, Nature reported on an investigation by independent molecular biologist Sholto David, which found that at least 54 articles claim to detect mammalian β-galactosidase, but actually point to antibodies to the bacterial version of the enzyme found in E. coli.
The Cell editorial team is reviewing one case, while Springer Nature has announced that it will evaluate the claims. Cellular aging, or senescence, is a state in which a cell stops dividing but remains alive, often detected by β-galactosidase activity. The dye X-Gal gives a blue signal after reacting with both mammalian and bacterial β-galactosidase. However, antibodies are specific to a particular protein, and the catalog number of a reagent can be used to verify which protein an antibody is supposed to recognize.
In David's analysis, he compared reagent numbers from methods to manufacturer catalogs and found 54 cases of potential errors. One of the cases is a 2016 article in Cell on partial reprogramming of mice with a model of premature aging, which lists Millipore AB986 as one of the reagents. The Cell editorial team is reviewing this particular case, and biophysicist Eled Edwards notes that if articles use incorrect antibodies, such predictions may go down a false path, potentially affecting AI models that read articles and propose protein targets for treatment.
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Nature
Sleuth identifies dozens of studies that used the wrong antibody
Nature - The case is the latest example of a scientific workhorse being misused in experiments.
August 25, 2026 6
