首页> 外文期刊>Journal of immunotherapy >Inhibition of tumor growth by targeted toxins in mice is dramatically improved by saponinum album in a synergistic way.
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Inhibition of tumor growth by targeted toxins in mice is dramatically improved by saponinum album in a synergistic way.

机译:皂苷相册以协同方式显着改善了小鼠体内靶向毒素对肿瘤生长的抑制作用。

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摘要

The application of targeted toxins in cancer therapy remains a challenge due to the severe side effects as a consequence of the high systemic doses required. Here, we describe the combined application of a glycosylated triterpenoid (Spn) and epidermal growth factor receptor (EGFR)-targeted chimeric toxins (SA2E). The cytotoxicity of SA2E on murine TSA tumor cells transfected with human EGFR was enhanced 20,000-fold by low nonpermeabilizing Spn concentrations in a synergistic manner. Subcutaneous application of Spn and SA2E in BALB/c mice bearing a solid TSA cells transfected with epidermal growth factor receptor tumor resulted in 94% tumor volume reduction with a 50-fold lower chimeric toxin concentration compared with pure SA2E treatment. Side effects as monitored by observable complications, body weight, blood parameters; histologic analyses and antibody responses were only moderate and usually reversible.
机译:由于所需的高全身剂量导致严重的副作用,靶向毒素在癌症治疗中的应用仍然是一个挑战。在这里,我们描述了糖基化的三萜类化合物(Spn)和表皮生长因子受体(EGFR)靶向嵌合毒素(SA2E)的组合应用。低通透性Spn浓度低,协同作用使SA2E对用人EGFR转染的鼠TSA肿瘤细胞的细胞毒性增强了20,000倍。将Spn和SA2E皮下应用到携带经表皮生长因子受体肿瘤转染的固体TSA细胞的BALB / c小鼠中,与纯SA2E处理相比,可减少94%的肿瘤体积,并使嵌合毒素浓度降低50倍。通过观察到的并发症,体重,血液参数监测副作用;组织学分析和抗体反应仅中等,通常是可逆的。

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