Diagnostic and therapeutic evaluation of 111In-vinorelbine-liposomes in a human colorectal carcinoma HT-29/luc-bearing animal model

Tong Hsien Chow, Yu Yi Lin, Jeng Jong Hwang, Hsin Ell Wang, Yun Long Tseng, Victor Fei Pang, Shyh Jen Wang, Jacqueline Whang-Peng, Gann Ting

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Colorectal carcinoma is a highly prevalent and common cause of cancer in Taiwan. There is still no available cure for this malignant disease. To address this issue, we applied the multimodality of molecular imaging to explore the efficacy of diagnostic and therapeutic nanoradiopharmaceuticals in an animal model of human colorectal adenocarcinoma [colorectal cancer (CRC)] that stably expresses luciferase (luc) as a reporter. In this study, an in vivo therapeutic efficacy evaluation of dual-nanoliposome (100 nm in diameter) encaged vinorelbine (VNB) and 111In-oxine on HT-29/luc mouse xenografts was carried out. HT-29/luc tumor cells were transplanted subcutaneously into male SCID mice. Multimodality of molecular imaging approaches including bioluminescence imaging (BLI), gamma scintigraphy, whole-body autoradiography (WBAR) and in vivo tumor growth tracing, histopathology and biochemistry/hematology analyses were applied on xenografted SCID mice to study the treatments with 6% polyethylene glycol (PEG) of 111In-NanoX/VNB-liposomes. In vivo tumor growth tracing and BLI showed that tumor volume could be completely inhibited by the combination therapy with 111In-VNB-liposomes and by chemotherapy with NanoX/VNB-liposomes (i.e., without Indium-111) (P<.01). The nuclear medicine images of gamma scintigraphy and WBAR also revealed the conspicuous inhibition of tumor growth by the combination therapy with 111In-VNB-liposomes. Animal body weights, histopathology and biochemistry/hematology analyses were used to confirm the safety and feasibility of radiopharmaceuticals. A synergistic therapeutic effect on CRC xenografted SCID mice was proven by combining an Auger electron-emitting radioisotope (Indium-111) with an anticancer drug (VNB). This study further demonstrates the beneficial potential applications of multimodality molecular imaging as part of the diagnostic and therapeutic approaches available for the evaluation of new drugs and other strategic approaches to disease treatment.

Original languageEnglish
Pages (from-to)623-634
Number of pages12
JournalNuclear Medicine and Biology
Volume35
Issue number5
DOIs
Publication statusPublished - Jul 2008
Externally publishedYes

Fingerprint

Luciferases
Liposomes
Colorectal Neoplasms
Animal Models
Molecular Imaging
SCID Mice
Indium Radioisotopes
Hematology
Neoplasms
Autoradiography
Radionuclide Imaging
Biochemistry
Therapeutics
Growth
Drug Evaluation
Indium
Radiopharmaceuticals
Nuclear Medicine
Therapeutic Uses
vinorelbine

Keywords

  • In-oxine
  • Bioluminescence imaging
  • Colorectal adenocarcinoma
  • Gamma scintigraphy
  • Luciferase
  • Vinorelbine
  • Whole-body autoradiography

ASJC Scopus subject areas

  • Cancer Research
  • Molecular Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Diagnostic and therapeutic evaluation of 111In-vinorelbine-liposomes in a human colorectal carcinoma HT-29/luc-bearing animal model. / Chow, Tong Hsien; Lin, Yu Yi; Hwang, Jeng Jong; Wang, Hsin Ell; Tseng, Yun Long; Pang, Victor Fei; Wang, Shyh Jen; Whang-Peng, Jacqueline; Ting, Gann.

In: Nuclear Medicine and Biology, Vol. 35, No. 5, 07.2008, p. 623-634.

Research output: Contribution to journalArticle

Chow, Tong Hsien ; Lin, Yu Yi ; Hwang, Jeng Jong ; Wang, Hsin Ell ; Tseng, Yun Long ; Pang, Victor Fei ; Wang, Shyh Jen ; Whang-Peng, Jacqueline ; Ting, Gann. / Diagnostic and therapeutic evaluation of 111In-vinorelbine-liposomes in a human colorectal carcinoma HT-29/luc-bearing animal model. In: Nuclear Medicine and Biology. 2008 ; Vol. 35, No. 5. pp. 623-634.
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