Pharmaceutical compositions including one or more integrin activators capable of capable of improving the anti-cancer activity of nature t-cells, wherein the integrin activators target integrins including, but not limited to, α4β1, α4β7, α5β1, αLβ2 and/or αVβ3 improving binding to their respective ligands including, but not limited to, VCAM-1, fibronectin, MAdCAM-1, ICAM-1, ICAM-2, and/or vitronectin, wherein the compositions treat, ameliorate, and/or reduce symptoms of diseases, maladies, and cancers, and methods for making and using for preventing, treating, ameliorating, and/or reducing symptoms of cancerous tumors, cancerous solid tumors, other cancerous growth, and/or other cancerous.
