Abstract
This study investigated the effects of bovine α‐lactalbumin (α‐La) treated with microbial transglutaminase on human cancer cells, cell cultures and growth rate assays. The anticancer activity for 10 mg/mL of bovine α‐lactalbumin (α‐La) was measured as ∼90% in a human colorectal cancer cell line HCT 116. For the human bone cancer cell line SJSA‐1, α‐La hydrolysis resulted in higher cytotoxicity compared to untreated tumour cells. The formation of polymers of α‐La was suppressed by the addition of ethylenediaminetetraacetic acid, indicating that polymers of α‐La are promoted by metal ions such as Ca2+. The effect of α‐La on the morphology of SJSA‐1 cells was manifested as morphological changes compatible with apoptosis. Bovine milk α‐La with and without microbial transglutaminase is considered a valuable food ingredient and a nutraceutical for human health.
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