Cancer Gene Therapy:膀胱癌患者中膀胱内rF-GM-CSF或rF-TRICOM的阶段I新辅助治疗研究

2019-07-02 AlexYang MedSci原创

膀胱内BCG治疗是高等级非肌肉侵入性膀胱癌和原位癌(CIS)的高效治疗方法,然而,对于那些对BCG治疗具有抗性或者不敏感的患者来讲,还需要其他可以选择的治疗方法。最近,有研究人员调查了膀胱内注射重组鸡痘病毒编码的GM-CSF(试验A)或者TRICOM(试验B)的安全性和可行性,以及对载体产生的局部和系统性免疫响应。20名计划将膀胱切除术作为标准疗法的膀胱癌患者在术前接受了为期4周的膀胱内重组鸡痘病

膀胱内BCG治疗是高等级非肌肉侵入性膀胱癌和原位癌(CIS)的高效治疗方法,然而,对于那些对BCG治疗具有抗性或者不敏感的患者来讲,还需要其他可以选择的治疗方法。

最近,有研究人员调查了膀胱内注射重组鸡痘病毒编码的GM-CSF(试验A)或者TRICOM(试验B)的安全性和可行性,以及对载体产生的局部和系统性免疫响应。20名计划将膀胱切除术作为标准疗法的膀胱癌患者在术前接受了为期4周的膀胱内重组鸡痘病毒剂量治疗。研究发现,治疗具有良好的耐受性,然而,3名患者的肝转氨酶具有短时间的提高,其中1名患者的水平提高到了DLT。来源于膀胱切除术的肿瘤组织和正常膀胱组织阐释了病毒编码的LacZ基因的mRNA具有有效的感染和转染。对LacZ编码的β-半乳糖苷酶血清抗体检测结果表明了载体编码基因产物的成功表达和膀胱部位的免疫能力。H&E和IHC阐释了膀胱壁的免疫细胞浸润。最后,研究人员指出,他们的结果阐释了rF-GM-CSF或rF-TRICOM膀胱内注射具有良好的安全性、成功的感染/转染、产生系统免疫响应和免疫细胞群体的局部募集,并且支持了该治疗方法对膀胱癌治疗的进一步评估。

原始出处:

Daniella E. Portal, Robert E. Weiss, Malgorzata Wojtowicz et al. Phase I neoadjuvant study of intravesical recombinant fowlpox-GM-CSF (rF-GM-CSF) or fowlpox-TRICOM (rF-TRICOM) in patients with bladder carcinoma. Cancer Gene Therapy. 20 Jun 2019

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    2019-12-26 kcb078
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    2019-07-31 cy0324
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    2019-07-03 百草

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    2019-07-03 留走人康

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    0

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