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Establishment of peripheral blood mononuclear cell-derived humanized lung cancer mouse models for studying efficacy of PD-L1/PD-1 targeted immunotherapy.
mAbs ( IF 5.3 ) Pub Date : 2018-10-02 , DOI: 10.1080/19420862.2018.1518948
Shouheng Lin 1, 2, 3 , Guohua Huang 4 , Lin Cheng 2, 3 , Zhen Li 5 , Yiren Xiao 2, 3 , Qiuhua Deng 4 , Yuchuan Jiang 6 , Baiheng Li 2, 3 , Simiao Lin 2, 3 , Suna Wang 2, 3 , Qiting Wu 2, 3 , Huihui Yao 7 , Su Cao 8 , Yang Li 9 , Pentao Liu 10 , Wei Wei 11 , Duanqing Pei 2, 3 , Yao Yao 2, 3 , Zhesheng Wen 6 , Xuchao Zhang 12 , Yilong Wu 12 , Zhenfeng Zhang 13 , Shuzhong Cui 14 , Xiaofang Sun 15 , Xueming Qian 5 , Peng Li 2, 3, 14
Affiliation  

Animal models used to evaluate efficacies of immune checkpoint inhibitors are insufficient or inaccurate. We thus examined two xenograft models used for this purpose, with the aim of optimizing them. One method involves the use of peripheral blood mononuclear cells and cell line-derived xenografts (PBMCs-CDX model). For this model, we implanted human lung cancer cells into NOD-scid-IL2Rg−/− (NSI) mice, followed by injection of human PBMCs. The second method involves the use of hematopoietic stem and progenitor cells and CDX (HSPCs-CDX model). For this model, we first reconstituted the human immune system by transferring human CD34+ hematopoietic stem and progenitor cells (HSPCs-derived humanized model) and then transplanted human lung cancer cells. We found that the PBMCs-CDX model was more accurate in evaluating PD-L1/PD-1 targeted immunotherapies. In addition, it took only four weeks with the PBMCs-CDX model for efficacy evaluation, compared to 10–14 weeks with the HSPCs-CDX model. We then further established PBMCs-derived patient-derived xenografts (PDX) models, including an auto-PBMCs-PDX model using cancer and T cells from the same tumor, and applied them to assess the antitumor efficacies of anti-PD-L1 antibodies. We demonstrated that this PBMCs-derived PDX model was an invaluable tool to study the efficacies of PD-L1/PD-1 targeted cancer immunotherapies. Overall, we found our PBMCs-derived models to be excellent preclinical models for studying immune checkpoint inhibitors.



中文翻译:

建立用于研究PD-L1 / PD-1靶向免疫疗法疗效的外周血单核细胞源性人源化肺癌小鼠模型。

用于评估免疫检查点抑制剂功效的动物模型不足或不准确。因此,我们检查了用于此目的的两个异种移植模型,以优化它们。一种方法涉及使用外周血单核细胞和细胞系衍生的异种移植物(PBMCs-CDX模型)。对于此模型,我们将人肺癌细胞植入NOD-scid-IL2Rg-/-(NSI)小鼠中,然后注射人PBMC。第二种方法涉及使用造血干细胞和祖细胞以及CDX(HSPCs-CDX模型)。对于此模型,我们首先通过转移人类CD34 +造血干细胞和祖细胞(HSPC衍生的人源化模型)来重构人类免疫系统,然后移植人类肺癌细胞。我们发现,PBMCs-CDX模型在评估PD-L1 / PD-1靶向免疫疗法方面更为准确。此外,PBMCs-CDX模型仅用了4周的时间进行了功效评估,而HSPCs-CDX模型则用了10-14周。然后,我们进一步建立了PBMC衍生的患者源异种移植(PDX)模型,包括使用来自同一肿瘤的癌症和T细胞的自动PBMCs-PDX模型,并将其用于评估抗PD-L1抗体的抗肿瘤功效。我们证明了这种PBMCs衍生的PDX模型是研究PD-L1 / PD-1靶向癌症免疫疗法的有效性的宝贵工具。总的来说,我们发现我们的PBMCs模型是研究免疫检查点抑制剂的出色的临床前模型。与使用HSPCs-CDX模型的10-14周相比。然后,我们进一步建立了PBMC衍生的患者源异种移植(PDX)模型,包括使用来自同一肿瘤的癌症和T细胞的自动PBMCs-PDX模型,并将其用于评估抗PD-L1抗体的抗肿瘤功效。我们证明了这种PBMCs衍生的PDX模型是研究PD-L1 / PD-1靶向癌症免疫疗法的有效性的宝贵工具。总的来说,我们发现我们的PBMCs模型是研究免疫检查点抑制剂的出色的临床前模型。与使用HSPCs-CDX模型的10-14周相比。然后,我们进一步建立了PBMC衍生的患者源异种移植(PDX)模型,包括使用来自同一肿瘤的癌症和T细胞的自动PBMCs-PDX模型,并将其用于评估抗PD-L1抗体的抗肿瘤功效。我们证明了这种PBMCs衍生的PDX模型是研究PD-L1 / PD-1靶向癌症免疫疗法的有效性的宝贵工具。总的来说,我们发现我们的PBMCs模型是研究免疫检查点抑制剂的出色的临床前模型。我们证明了这种PBMCs衍生的PDX模型是研究PD-L1 / PD-1靶向癌症免疫疗法的有效性的宝贵工具。总的来说,我们发现我们的PBMCs模型是研究免疫检查点抑制剂的出色的临床前模型。我们证明了这种PBMCs衍生的PDX模型是研究PD-L1 / PD-1靶向癌症免疫疗法的有效性的宝贵工具。总的来说,我们发现我们的PBMCs模型是研究免疫检查点抑制剂的出色的临床前模型。

更新日期:2018-10-02
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