Molecular imaging and therapeutic efficacy of 188Re-(DXR)-liposome-BBN in AR42J pancreatic tumor-bearing mice.
Oncol Rep
; 28(5): 1736-42, 2012 Nov.
Article
en En
| MEDLINE
| ID: mdl-22922965
ABSTRACT
Liposomes are good candidates as drug carriers and have been widely investigated in drug delivery systems. In this study, a new combination of bimodal 188Re-(DXR)-liposome-BBN radiochemotherapeutics was designed and studied for treating solid pancreatic tumor by intravenous administration. The in vivo nuclear microSPECT/CT imaging of tumor targeting, prolonged survival time and therapeutic efficacy were evaluated in AR42J malignant pancreatic solid tumor-bearing nude mice. MicroSPECT/CT imaging of 188Re-liposome-BBN pointed to significant targeting in tumors at 24 h after intravenous injection (SUV=2.13 ± 0.98). Co-injection of a blocking dose of cold BBN (4 mg/kg) inhibited the accumulation of 188Re-liposome-BBN in tumors (SUV=1.82 ± 0.31). For therapeutic efficacy, inhibition of tumor growth in mice treated with 188Re-DXR-liposome-BBN was precisely controlled [mean growth inhibition rate (MGI) = 0.092] and had longer survival time [life-span (LS) = 86.96%] than those treated with anticancer drug 188Re-liposome-BBN (MGI = 0.130; LS = 75%), Lipo-Dox-BBN (MGI = 0.666; LS = 3.61%) and untreated control mice. An additive tumor regression effect was observed (CI 0.946) for co-delivery of 188Re-DXR-liposome-BBN radiochemotherapeutics. These results point to the potential benefit of the 188Re-(DXR)-liposome-BBN radiochemotherapeutics for adjuvant cancer treatment with applications in oncology.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
6_ODS3_enfermedades_notrasmisibles
Problema de salud:
6_endocrine_disorders
/
6_pancreatic_cancer
Asunto principal:
Neoplasias Pancreáticas
/
Renio
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Bombesina
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Doxorrubicina
Límite:
Animals
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Humans
Idioma:
En
Revista:
Oncol Rep
Asunto de la revista:
NEOPLASIAS
Año:
2012
Tipo del documento:
Article