Abstract Background A growing body of evidence indicates that abnormal expression of circular RNAs (circRNAs) plays a crucial role by acting as molecular sponges of microRNAs (miRNAs) in various diseases. including cancer. In this study. we explored whether circCCDC85A could function as a miR-550a-5p sponge and influence breast cancer progression. https://www.ealisboa.com/mega-sale-Sol-Sunguard-Altitude-Sunscreen-1-5oz-big-savings/