PROS1 and cancer: Withaferin A alone or in combination with drugs, such as: hydroxychloroquine, dexamethasone or other treatments (under clinical trials), could be developed into an attractive therapeutic agent for both the general population and cancer patients due to its anti-tumorigenic properties and the preliminary studies showing that it is capable of binding to the S-protein of SARS-CoV-2, thereby potentially inhibiting infection and/or spread of the disease.