Abstract Background Human CUB and Sushi multiple domains 1 (CSMD1) is a large membrane-bound tumor suppressor in breast cancer. The current study aimed to elucidate the molecular mechanism underlying the effect of CSMD1 in highly invasive triple negative breast cancer (TNBC). Methods We examined the antitumor action of CSMD1 in three TNBC cell lines overexpressing CSMD1. MDA-MB-231. https://unitedssports.shop/product-category/kidney-pads/