当前位置: X-MOL 学术Cancer Med. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A patient-derived xenograft and a cell line derived from it form a useful preclinical model for small bowel adenocarcinoma.
Cancer Medicine ( IF 4 ) Pub Date : 2020-03-13 , DOI: 10.1002/cam4.2986
Tomoki Yamano 1 , Shuji Kubo 2 , Naohiro Tomita 1
Affiliation  

Basic and clinical studies on small bowel adenocarcinoma (SBA) are limited due to the rare nature of this cancer. We established a patient-derived xenograft (PDX) model from the tumor tissue of an advanced SBA patient with liver and peritoneal metastasis, and a cell line from the PDX. In the PDX model, compared to the control group, 5-fluorouracil (5-FU) treatment resulted in statistically significant tumor growth inhibition (TGI), while oxaliplatin (OHP) and irinotecan had no significant inhibitory effects. In combination with 5-FU, OHP showed the highest rate of TGI. The IC50 for OHP was significantly lower than those for paclitaxel, gemcitabine, and trifluorothymidine in the PDX-derived cell line when compared to in HT29, a colon cancer cell line. Genetic analysis of the patient tumor, PDX tumor, and the cell line demonstrated consistency in the microsatellite status and mutations in TP53, APC, HRAS, CSF1R, FGFR3, FLT3, PDGFRA, and RET genes. However, the PDX tumor alone had additional mutations, indicating that the PDX-derived cell line may support the unstable genetic status of the PDX. Our findings confirmed the effectiveness of the combination of OHP and 5-FU, which is a common treatment for advanced SBA and advanced colorectal cancer, in a preclinical model. This preclinical model of SBA can help in further understanding the biology of SBA.

中文翻译:

源自患者的异种移植物和源自它的细胞系形成了有用的小肠腺癌临床前模型。

由于小肠腺癌 (SBA) 的罕见性质,对小肠腺癌 (SBA) 的基础和临床研究受到限制。我们从患有肝和腹膜转移的晚期 SBA 患者的肿瘤组织和来自 PDX 的细胞系建立了患者来源的异种移植 (PDX) 模型。在PDX模型中,与对照组相比,5-氟尿嘧啶(5-FU)治疗导致了统计学上显着的肿瘤生长抑制(TGI),而奥沙利铂(OHP)和伊立替康没有显着的抑制作用。与 5-FU 结合使用时,OHP 的 TGI 率最高。与结肠癌细胞系 HT29 相比,在 PDX 衍生细胞系中,OHP 的 IC50 显着低于紫杉醇、吉西他滨和三氟胸苷的 IC50。患者肿瘤、PDX 肿瘤的基因分析,该细胞系在微卫星状态和 TP53、APC、HRAS、CSF1R、FGFR3、FLT3、PDGFRA 和 RET 基因突变方面表现出一致性。然而,单独的 PDX 肿瘤具有额外的突变,表明 PDX 衍生的细胞系可能支持 PDX 的不稳定遗传状态。我们的研究结果证实了 OHP 和 5-FU 组合在临床前模型中的有效性,5-FU 是晚期 SBA 和晚期结直肠癌的常见治疗方法。这种 SBA 的临床前模型有助于进一步了解 SBA 的生物学特性。我们的研究结果证实了 OHP 和 5-FU 组合在临床前模型中的有效性,5-FU 是晚期 SBA 和晚期结直肠癌的常见治疗方法。这种 SBA 的临床前模型有助于进一步了解 SBA 的生物学特性。我们的研究结果证实了 OHP 和 5-FU 组合在临床前模型中的有效性,5-FU 是晚期 SBA 和晚期结直肠癌的常见治疗方法。这种 SBA 的临床前模型有助于进一步了解 SBA 的生物学特性。
更新日期:2020-03-13
down
wechat
bug