Protein Released by Healthy Cells Can Kill Breast Cancer Cells

Researchers from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered that apart from the mighty immune system cells, the healthy cells in the body can also fight against breast cancer.

The results of their study are published in the April 2011 issue of the journal Science Translational Medicine.

The experts have discovered that healthy cells produce a protein interleukin 25 (IL25) which specially can kill breast cancer cells. It is one of the tumor suppression agents which successfully cause the programmed death of the malignant cells.

While normal cells did not possess the receptors of IL25, rogue cells did have large number of these receptors on their surface. In this way, the malignant cells become the targets of these healthy cells.

The present study explains why the rate of cancer in the general population is relatively low though we are exposed to the cancer risk factors greatly. Though on an average 1000 impaired cells are produced in the body, they are removed by the potent immune system and tumor suppression agents like IL25.

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