Carew J F, Federoff H, Halterman M, Kraus D H, Savage H, Sacks P G, Schantz S P, Shah J P, Fong Y
Department of Head and Neck Surgery, Memorial Sloan Kettering Cancer Center, New York, New York 10021, USA.
Am J Surg. 1998 Nov;176(5):404-8. doi: 10.1016/s0002-9610(98)00231-1.
This study evaluates the efficiency of herpes simplex virus (HSV) mediated gene transfer in human squamous cell carcinoma (SCC) cell lines in vitro and in vivo when delivered by selective intra-arterial perfusion.
Human head and neck SCC were exposed to HSV-LacZ and HSV-interleukin-2 (IL-2) and gene transfer and expression assessed by X-gal staining and enzyme-linked immunosorbent assay, respectively. Hamster cheek pouch tumors were perfused with HSV-LacZ or HSV-IL-2, by microcannulating the external carotid artery, and gene transfer determined.
A ratio of 5 viral particles per tumor cell achieved gene transfer rates exceeding 50%. Interleukin-2 levels of 287 +/- 17 to 424 +/- 8.4 ng per million cells were achieved at a ratio of 2 viral particles per tumor cell. Selective intra-arterial perfusion of the HSV-IL-2 vector yielded IL-2 levels of 45.8 +/- 17.0 pg per g tumor.
HSV amplicon vectors are efficient vehicles for gene transfer in vitro in human head and neck SCC cell lines and in vivo when introduced by selective intra-arterial perfusion.
本研究评估单纯疱疹病毒(HSV)介导的基因转移在体外人鳞状细胞癌(SCC)细胞系及通过选择性动脉内灌注在体内的效率。
将人头颈SCC暴露于HSV-LacZ和HSV-白细胞介素-2(IL-2),分别通过X-gal染色和酶联免疫吸附测定评估基因转移和表达。通过对外颈动脉进行微插管,用HSV-LacZ或HSV-IL-2灌注仓鼠颊囊肿瘤,并测定基因转移情况。
每个肿瘤细胞5个病毒颗粒的比例实现了超过50%的基因转移率。每个肿瘤细胞2个病毒颗粒的比例时,每百万细胞的白细胞介素-2水平达到287±17至424±8.4纳克。HSV-IL-2载体的选择性动脉内灌注产生的IL-2水平为每克肿瘤45.8±17.0皮克。
HSV扩增载体是在体外人头颈SCC细胞系中以及通过选择性动脉内灌注在体内进行基因转移的有效载体。