hPD-1

品系全名

C57BL/6JSmo-Pdcd1tm1(hPDCD1) /Smoc

目录号

NM-HU-00015

品系状态

活体

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基因信息

基因名
Pdcd1

品系描述

通过同源重组,将小鼠Pdcd1基因进行人源化修饰。
应用领域:免疫治疗,肿瘤研究,药物筛选

验证数据

  • RT-PCR验证数据

    image.png

    Fig1. Detection of PD-1 expression by RT-PCR. 

    Abbr.. M, DNA marker; HO, homozygous; HE, heterozygous; WT, wild type.


  • 流式验证数据

pd-1流式数据.png

图2. FACS 检测刺激后 PD-1 人源化纯合子小鼠脾脏淋巴细胞人源 PD-1 表达。


  • PD-1人源化小鼠MC38荷瘤模型体内验证结果

image.png

图3. PD-1人源化小鼠模型抗PD-1人源化抗体体内抗肿瘤效果。抗human-PD-1药物能够显著抑制MC38肿瘤在PD-1小鼠体内的生长,证明PD-1人源化小鼠可用于评估anti-human PD-1 antibody。


A. 肿瘤组织平均体积±SEM(与 Genscript 合作完成)。

PD-1 人源化小鼠 MC38 荷瘤模型体内抗肿瘤药效验证。PD-1 人源化纯合子小鼠接种 MC38 结肠癌细胞系,肿瘤生长至约 100 mm3随机将动物分组为对照组和治疗组(n=8),每周给药两次,连续给药四次。结果显示:针对人的 PD-1 阳性药物 Keytruda 有非常显著的抗肿瘤效果(p<0.001),证明 PD-1 人源化小鼠是一个很好的验证针对人 PD-1 抗体药效的体内模型。


B. 肿瘤组织平均体积±SEM。  C. 小鼠平均体重±SEM ( 与 PharmaLegacy 合作完成 )。

PD-1 人源化小鼠MC38 荷瘤模型体内抗肿瘤药效剂量验证。PD-1 人源化纯合子小鼠接种 MC38 结肠癌细胞系,肿瘤生长至约 90 mm3随机将动物分组为对照组和治疗组(n=9)。结果显示:针对人的 PD-1 抗体有非常显著的抗肿瘤效果(p<0.001),且这种抗肿瘤效果呈现出剂量效应。


image.png

图4. PD-1 人源化小鼠MC38 荷瘤模型体内Nivolumab analog药效剂量验证。PD-1 人源化纯合子小鼠接种MC38 结肠癌细胞系,肿瘤生长至约100 mm3 随机将动物分组为对照组和治疗组(n=8),每周给药两次,连续给药四次。(与Crownbio合作完成)


Case Study 1

2018年8月17日,Antibody Therapeutics杂志发表了信达生物的研究成果“Preclinical characterization of Sintilimab, a fully human anti-PD-1 therapeutic monoclonal antibody for cancer”。该研究中报道的抗肿瘤药物Sintilimab在2018年12月27日获NMPA批准,成为国内第二个获批上市的国产PD-1抗体。点击此处查看原文


研究中用于药效评价的动物模型是由南模生物提供。具体实验数据图如下:

微信截图_20190507094559.png

图5. Sintilimab在PD-1人源化小鼠中的体内抗肿瘤药效验证。A.用不同剂量的Sintilimab处理PD-1人源化小鼠MC38肿瘤模型后的肿瘤生长抑制(TGI)情况。B.Sintilimab对小鼠体重的百分比变化的影响。C.肿瘤浸润组织中CD4+,CD8+和Treg细胞比例的变化。

Case Study 2

2019年9月3日,抗体领域权威杂志mAbs在线发表了信达生物的最新研究成果”Durable blockade of PD-1 signaling links preclinical efficacy ofSintilimab to its clinical benefit“。文章利用临床前实验阐释了信迪利单抗可以非常有效持续地阻断PD-1信号通路,与临床试验中良好的药物治疗效果相符合。南模生物为该项研究提供了重要的动物模型——PD-1免疫检查点人源化小鼠。(点击查看文献解读

image.png

Fig 6. Means of tumor volume(A) and body weight(B). PD-1 humanized mouse model implanted with MC38-hCLDN18.2 tumors to evaluate the in vivo antitumor efficacy of anti-hCLDN18.2 mAb alone and in combination with Keytruda. The anti-hCLDN18.2 mAb in combination with Keytruda significantly inhibited the growth of MC38-hCLDN18.2 tumors in PD-1 humanized mice, demonstrating that this model is suitable for evaluating the in vivo efficacy of anti-hCLDN18.2 mAb alone and in combination with PD-1/PD-L1 antibodies. n=8. Mean士SEM. t-test, * P < 0.05.


发表文献 10篇

1. Noncanonical amino acid-aided synthesis of anti-PD-L1 bispecific nanobody for colon cancer immunotherapy
发表年份:2025 来源杂志:Communications Biology

2. A Novel Monoclonal Antibody against PD-1 for the Treatment of Viral Oncogene-Induced Tumors or Other Cancer
发表年份:2024 来源杂志:Cancers

3. Original research: Oncolytic virus expressing PD-1 inhibitors activates a collaborative intratumoral immune response to control tumor and synergizes with CTLA-4 or TIM-3 blockade
发表年份:2022 来源杂志:Journal for ImmunoTherapy of Cancer

4. Histone deacetylases inhibitor chidamide synergizes with humanized PD1 antibody to enhance T-cell chemokine expression and augment Ifn-γ response in NK-T cell lymphoma
发表年份:2022 来源杂志:EBioMedicine

5. The oncolytic virus VT09X optimizes immune checkpoint therapy in low immunogenic melanoma
发表年份:2021 来源杂志:IMMUNOLOGY LETTERS

6. Design, Synthesis, and Biological Evaluation of Linear Aliphatic Amine-Linked Triaryl Derivatives as Potent Small-Molecule Inhibitors of the Programmed Cell Death-1/Programmed Cell Death-Ligand 1 Interaction with Promising Antitumor Effects In Vivo
发表年份:2020 来源杂志:JOURNAL OF MEDICINAL CHEMISTRY

7. Discovery of Novel and Highly Potent Resorcinol Dibenzyl Ether-Based PD-1/PD-L1 Inhibitors with Improved Drug-like and Pharmacokinetic Properties for Cancer Treatment
发表年份:2020 来源杂志:JOURNAL OF MEDICINAL CHEMISTRY

8. Enhanced Therapeutic Efficacy of a Novel Oncolytic Herpes Simplex Virus Type 2 Encoding an Antibody Against Programmed Cell Death 1
发表年份:2019-10-23 来源杂志:Molecular Therapy Oncolytics

9. Identification of a monoclonal antibody that targets PD-1 in a manner requiring PD-1 Asn58 glycosylation
发表年份:2019 来源杂志:Communications Biology

10. Distinct contribution of PD-L1 suppression by spatial expression of PD-L1 on tumor and non-tumor cells
发表年份:2018 来源杂志:Cellular & Molecular Immunology

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