TY - JOUR
T1 - Systemic tumor targeting and killing by Sindbis viral vectors
AU - Tseng, Jen Chieh
AU - Levin, Brandi
AU - Hurtado, Alicia
AU - Yee, Herman
AU - De Castro, Ignacio Perez
AU - Jimenez, Maria
AU - Shamamian, Peter
AU - Jin, Ruzhong
AU - Novick, Richard P.
AU - Pellicer, Angel
AU - Meruelo, Daniel
N1 - Funding Information:
We thank Elizabeth W. Newcomb, Christine Pampeno and Colby Collier for critical reading of this manuscript and helpful discussions. This study was supported by US Public Health Service grants CA22247 and CA68498 from the National Cancer Institute, National Institutes of Health, Department of Health and Human Services, by U.S. Army grant 0C000111 and by a generous gift from the Karan-Weiss Foundation.
PY - 2004/1
Y1 - 2004/1
N2 - Successful cancer gene therapy requires a vector that systemically and specifically targets tumor cells throughout the body. Although several vectors have been developed to express cytotoxic genes via tumor-specific promoters or to seclectively replicate in tumor cells, most are taken up and expressed by just a few targeted tumor cells. By contrast, we show here that blood-borne Sindbis viral vectors systemically and specifically infect tumor cells. A single intraperitoneal treatment allows the vectors to target most tumor cells, as demonstrated by immunohistochemistry, without infecting normal cells. Further, Sindbis infection is sufficient to induce complete tumor regression. We demonstrate systemic vector targeting of tumors growing subcutaneously, intrapancreatically, intraperitoneally and in the lungs. The vectors can also target syngeneic and spontaneous tumors in immune-competent mice. We document the anti-tumor specificity of a vector that systemically targets and eradicates tumor cells throughout the body without adverse effects.
AB - Successful cancer gene therapy requires a vector that systemically and specifically targets tumor cells throughout the body. Although several vectors have been developed to express cytotoxic genes via tumor-specific promoters or to seclectively replicate in tumor cells, most are taken up and expressed by just a few targeted tumor cells. By contrast, we show here that blood-borne Sindbis viral vectors systemically and specifically infect tumor cells. A single intraperitoneal treatment allows the vectors to target most tumor cells, as demonstrated by immunohistochemistry, without infecting normal cells. Further, Sindbis infection is sufficient to induce complete tumor regression. We demonstrate systemic vector targeting of tumors growing subcutaneously, intrapancreatically, intraperitoneally and in the lungs. The vectors can also target syngeneic and spontaneous tumors in immune-competent mice. We document the anti-tumor specificity of a vector that systemically targets and eradicates tumor cells throughout the body without adverse effects.
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U2 - 10.1038/nbt917
DO - 10.1038/nbt917
M3 - Article
C2 - 14647305
AN - SCOPUS:0346725931
SN - 1087-0156
VL - 22
SP - 70
EP - 77
JO - Nature biotechnology
JF - Nature biotechnology
IS - 1
ER -