BECN1 and cancer: RGD-N3 (cyclo (Arg-Gly-Asp-d-Phe-Lys(Azide))) can target tumor’s αvβ3 integrin receptor, Beclin 1 derived peptide is a functional peptide that can bind to Class III phosphatidylinositol 3-kinase (PI3KCIII)/Vps34, initiate cancer cell autophagy.