首页> 外文期刊>Cell biology international. >Correlation between cell survival, clonogenic activity and micronuclei induction in dmba-oc-1r cells treated with immunospecific albumin microspheres containing Cisplatin and 5-Fluorouracil.
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Correlation between cell survival, clonogenic activity and micronuclei induction in dmba-oc-1r cells treated with immunospecific albumin microspheres containing Cisplatin and 5-Fluorouracil.

机译:用包含顺铂和5-氟尿嘧啶的免疫特异性白蛋白微球处理的dmba-oc-1r细胞中细胞存活,克隆形成活性和微核诱导之间的相关性。

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An ideal chemotherapeutic strategy would be to deliver a high concentration of drug that would be released in sustained small amounts from targeted microspheres to effectively kill only the tumour cells and thus reduce toxicity to normal tissue. Clonogenic and cell survival growth curve assays, as well as the micronucleus assay, were used to determine the feasibility of employing targeted immunomicrospheres in the treatment of cancer. Cells of a rodent ovarian carcinoma cell line, were exposed to cisplatin and 5-fluorouracil, either as free drug or encapsulated in albumin microspheres that were either conjugated to monoclonal antibodies or not. In cell survival growth curve assays, cell survival was reduced to 1.2% of the control when cells were treated with drug-containing immunomicrospheres. 3.2-fold more micronuclei were found in those cells that had been exposed to the drugs in immunomicrospheres than in those subjected to untargeted microspheres. All three assays demonstrated that the targeted immunomicrospheres were more effective in delivering cisplatin and 5-fluorouracil directly to the cells than the unconjugated microspheres, thus suggesting that targeted chemotherapy might be a more effective option in the treatment of cancer.
机译:理想的化学治疗策略是提供高浓度药物,该药物将从目标微球体中持续少量释放,从而仅有效杀死肿瘤细胞,从而降低对正常组织的毒性。克隆形成和细胞存活生长曲线测定法以及微核测定法被用来确定采用靶向免疫微球治疗癌症的可行性。将啮齿动物卵巢癌细胞系的细胞以游离药物的形式暴露于顺铂和5-氟尿嘧啶,或封装在与单克隆抗体缀合或不与单克隆抗体缀合的白蛋白微球中。在细胞存活生长曲线测定中,当用含药物的免疫微球处理细胞时,细胞存活率降低至对照的1.2%。在免疫微球中暴露于药物的那些细胞中,发现的微核比未靶向微球的细胞多出3.2倍。所有这三种测定法均表明,与未结合的微球相比,靶向的免疫微球在将顺铂和5-氟尿嘧啶直接递送至细胞方面更有效,因此表明靶向化疗可能是治疗癌症的更有效选择。

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