The observed stabilization was shown to drastically improve the uptake of two representative radiopeptides, [99mTc]Tc-DB4 and [111In]In-SG4, in tumor-bearing mice via GRPR-/CCK2R-specific pathways, most probably by enhancing the supply of intact radiotracers to tumor-residing receptors. The gene discussed is CCKBR; the disease is neoplasm.