Engineered ‘triple-threat’ immune cells could fight plaque buildup that causes heart attacks and strokes

A UCLA research team has engineered a new type of immune cell that attacks atherosclerotic plaques—the fatty buildup inside artery walls that drives most heart attacks and strokes. These engineered cells work by recognizing three harmful cell types within plaques. The paper is published in the journal Circulation Research.

In a mouse model, a lab-grown mini blood vessel and artery tissue from patients with severe heart disease, these “triple-threat” cells outperformed a single-target version, clearing out more of the cell types that keep plaques active and dangerous.

Atherosclerosis is the underlying driver of most cardiovascular disease, which continues to be the leading cause of death worldwide. It remains difficult to treat even with cholesterol-lowering and anti-inflammatory drugs, largely because plaques aren’t a uniform mass of fat but complex environments packed with different cell types that reinforce each other’s damage.

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