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U.S. National Institutes of Health National Cancer Institute
Dictionary of Cancer Terms
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ER+

 Describes cells that have a protein to which the hormone estrogen will bind. Cancer cells that are ER+ need estrogen to grow, and may stop growing when treated with hormones that block estrogen from binding. Also called estrogen receptor positive.

Previous Definitions:epothilone ZK219477, epratuzumab, Epstein-Barr virus, EPT, ER
Next Definitions:ER-, ERA-923, erb-38 immunotoxin, ErbB1, Erbitux