Enhanced efficacy of combination therapy with adeno-associated virus-delivered pigment epithelium-derived factor and cisplatin in a mouse model of Lewis lung carcinoma
| Autor: | Changyang Gong, Meng Li, Lian Lu, Li-Li Yang, Yuquan Wei, Shuang Zhang, Shun-Tao Luo, Sha-Sha He, Qinjie Wu |
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| Rok vydání: | 2014 |
| Předmět: |
Male
Cancer Research Pathology Lung Neoplasms Angiogenesis viruses cisplatin Gene Expression Apoptosis medicine.disease_cause Biochemistry angiogenesis Carcinoma Lewis Lung Mice chemistry.chemical_compound Adeno-associated virus Neovascularization Pathologic Articles Dependovirus Combined Modality Therapy Vascular endothelial growth factor Oncology Molecular Medicine medicine.drug tumor medicine.medical_specialty Genetic Vectors Antineoplastic Agents adeno-associated virus-pigment epithelium-derived factor PEDF Cell Line Tumor Genetics medicine Animals Humans Nerve Growth Factors Eye Proteins Lung cancer Molecular Biology Serpins combination Cisplatin Oncogene business.industry Lewis lung carcinoma Genetic Therapy medicine.disease Disease Models Animal chemistry Cancer research business |
| Zdroj: | Molecular Medicine Reports |
| ISSN: | 1791-3004 1791-2997 |
| DOI: | 10.3892/mmr.2014.2117 |
| Popis: | Pigment epithelium-derived factor (PEDF) is a potent inhibitor of angiogenesis, and the antitumor effect of adeno-associated virus (AAV)-mediated PEDF expression has been demonstrated in a range of animal models. The combined treatment of low-dose chemotherapy and gene therapy inhibits the growth of solid tumors more effectively than current traditional therapies or gene therapy alone. In the present study, the effect of treatment with an AAV2 vector harboring the human PEDF (hPEDF) gene in combination with low-dose cisplatin on the growth of Lewis lung carcinoma (LLC) in mice was assessed. LLC cells were infected with AAV-enhanced green fluorescent protein (EGFP) in the presence or absence of cisplatin, and then the effect of cisplatin on AAV-mediated gene expression was evaluated by image and flow cytometric analysis. Tumor growth, survival time, vascular endothelial growth factor (VEGF) expression, microvessel density (MVD) and apoptotic index were analyzed in C57BL/6 mice treated with AAV-hPEDF, cisplatin or cisplatin plus AAV-hPEDF. The results of the present study provide evidence that cisplatin treatment is able to enhance AAV-mediated gene expression in LLC cells. In addition, the combined treatment of cisplatin plus AAV‑hPEDF markedly prolonged the survival time of the mice and inhibited tumor growth, resulting in significant suppression of tumor angiogenesis and induction of tumor apoptosis in vivo, and also protected against cisplatin-related toxicity. These findings suggest that combination of AAV-hPEDF and cisplatin has potential as a novel therapeutic strategy for lung cancer. |
| Databáze: | OpenAIRE |
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