UNLABELLED: The purpose of this study was to examine the therapeutic efficacy of (188)Re-(Arg(11))[Cys(3,4,10),d-Phe(7)]alpha-melanocyte-stimulating hormone(3-13) (CCMSH) in the B16/F1 murine melanoma- and TXM13 human melanoma-bearing mouse models. METHODS: (Arg(11))CCMSH was synthesized and labeled with (188)Re to form (188)Re-(Arg(11))CCMSH. B16/F1 melanoma-bearing mice were administrated 7.4 MBq, 22.2 MBq, and 2 x 14.8 MBq of (188)Re-(Arg(11))CCMSH via the tail vein. TXM13 melanoma-bearing mice were separately injected with 22.2 MBq, 2 x 14.8 MBq, and 37.0 MBq of (188)Re-(Arg(11))CCMSH through the tail vein. Two groups of 10 mice bearing either B16/F1 or TXM13 tumors were injected with saline as untreated controls. RESULTS: In contrast to the untreated control group, (188)Re-(Arg(11))CCMSH yielded rapid and lasting therapeutic effects in the treatment groups with either B16/F1 or TXM13 tumors. The tumor growth rate was reduced and the survival rate was prolonged in the treatment groups. Treatment with 2 x 14.8 MBq of (188)Re-(Arg(11))CCMSH significantly extended the mean life of B16/F1 tumor mice (P < 0.05), whereas the mean life of TXM13 tumor mice was significantly prolonged after treatment with 22.2-MBq and 37.0- MBq doses of (188)Re-(Arg(11))CCMSH (P < 0.05). High-dose (188)Re-(Arg(11))CCMSH produced no observed normal tissue toxicity. CONCLUSION: The therapy study results revealed that (188)Re-(Arg(11))CCMSH yielded significant therapeutic effects in both B16/F1 murine melanoma- and TXM13 human melanoma-bearing mouse models. (188)Re-(Arg(11))CCMSH appears to be a promising radiolabeled peptide for targeted radionuclide therapy of melanoma.
UNLABELLED: The purpose of this study was to examine the therapeutic efficacy of (188)Re-(Arg(11))[Cys(3,4,10),d-Phe(7)]alpha-melanocyte-stimulating hormone(3-13) (CCMSH) in the B16/F1 murinemelanoma- and TXM13 humanmelanoma-bearing mouse models. METHODS: (Arg(11))CCMSH was synthesized and labeled with (188)Re to form (188)Re-(Arg(11))CCMSH. B16/F1 melanoma-bearing mice were administrated 7.4 MBq, 22.2 MBq, and 2 x 14.8 MBq of (188)Re-(Arg(11))CCMSH via the tail vein. TXM13 melanoma-bearing mice were separately injected with 22.2 MBq, 2 x 14.8 MBq, and 37.0 MBq of (188)Re-(Arg(11))CCMSH through the tail vein. Two groups of 10 mice bearing either B16/F1 or TXM13 tumors were injected with saline as untreated controls. RESULTS: In contrast to the untreated control group, (188)Re-(Arg(11))CCMSH yielded rapid and lasting therapeutic effects in the treatment groups with either B16/F1 or TXM13 tumors. The tumor growth rate was reduced and the survival rate was prolonged in the treatment groups. Treatment with 2 x 14.8 MBq of (188)Re-(Arg(11))CCMSH significantly extended the mean life of B16/F1 tumormice (P < 0.05), whereas the mean life of TXM13 tumormice was significantly prolonged after treatment with 22.2-MBq and 37.0- MBq doses of (188)Re-(Arg(11))CCMSH (P < 0.05). High-dose (188)Re-(Arg(11))CCMSH produced no observed normal tissue toxicity. CONCLUSION: The therapy study results revealed that (188)Re-(Arg(11))CCMSH yielded significant therapeutic effects in both B16/F1 murinemelanoma- and TXM13 humanmelanoma-bearing mouse models. (188)Re-(Arg(11))CCMSH appears to be a promising radiolabeled peptide for targeted radionuclide therapy of melanoma.
Authors: John L Joyal; John A Barrett; John C Marquis; Jianqing Chen; Shawn M Hillier; Kevin P Maresca; Marie Boyd; Kenneth Gage; Sridhar Nimmagadda; James F Kronauge; Matthias Friebe; Ludger Dinkelborg; James B Stubbs; Michael G Stabin; Rob Mairs; Martin G Pomper; John W Babich Journal: Cancer Res Date: 2010-05-04 Impact factor: 12.701
Authors: Lihui Wei; Xiuli Zhang; Fabio Gallazzi; Yubin Miao; Xiaofang Jin; Martin W Brechbiel; Heng Xu; Thomas Clifford; Michael J Welch; Jason S Lewis; Thomas P Quinn Journal: Nucl Med Biol Date: 2009-03-26 Impact factor: 2.408