Single Biggest Cancer Dictionary in the World

What is AR positive?

Pronunciation: /ɑr ˈpɑzətɪv/

AR positive

Definition

Describes cells that have a protein that binds to androgens (male hormones). Cancer cells that are AR positive may need androgens to grow. These cells may stop growing or die when they are treated with substances that block the binding and actions of androgen hormones. Also called androgen receptor positive.