کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2116476 | 1084931 | 2010 | 7 صفحه PDF | دانلود رایگان |
Disseminating disease of high grade gliomas is difficult to treat. We examined the therapeutic effect of intrathecal administration of mesenchymal stem cells transduced with herpes simplex virus-thymidine kinase gene (MSCtk) followed by systemic ganciclovir (GCV) administration in rat experimental leptomeningeal glioma model. First, to examine in vivo bystander effect, rats were intrathecally co-injected with a mixture of MSCtk and C6 cells and then, intraperitoneally administered with GCV or saline for 10 days (co-injection model). Next, to examine the therapeutic effect of MSCtk/GCV therapy, MSCtk cells were intrathecally administered 1 day after C6 injection and then, GCV or saline was administered (treatment model). GCV administration significantly reduced tumor size on day 14 both in the co-injection model (0.41 ± 0.22 vs. 3.10 ± 0.97 mm2, p < 0.01) and in the treatment model (0.73 ± .29 vs. 2.84 ± 0.82 mm2, p < 0.01). Survival was also significantly prolonged in GCV group both in the co-injection model (29.2 ± 3.3 vs. 18.8 ± 0.8 days, p < 0.001) and in the treatment model (21.5 ± 1.5 vs. 17.2 ± 0.5 days, p < 0.001). This study provided a novel treatment strategy for leptomeningeal glioma dissemination using intrathecal MSCtk injection followed by systemic GCV administration.
Journal: Cancer Letters - Volume 291, Issue 2, 28 May 2010, Pages 256–262