tPDT treatment of LS174T-PSMA tumor bearing mice using this tracer caused significant tumor growth delay, as tumors in the control group reached a size of 500 mm3 in 27.7 days (range: 19-42 days), while treated tumors reached this size after 50.4 days (range: 23-80 days). The gene discussed is FOLH1; the disease is neoplasm.