哮喘疾病模型

疾病简介

哮喘(asthma)是一种由多种细胞(如嗜酸性粒细胞、肥大细胞、T淋巴细胞等)及细胞组分参与的慢性气道炎症性疾病,具有异质性和气道高反应性特征。其核心病理表现为气道炎症、气道重塑及可变性气流受限,临床以反复发作的喘息、胸闷、咳嗽等症状为主,常在夜间或凌晨加重,多数患者可经治疗缓解。

疾病模型

优质的哮喘疾病模型是药物评价的良好工具,常用的造模方式是采用屋尘螨提取物(house dust mite,HDM)、卵清蛋白(ovalbumin,OVA)等构建小鼠哮喘模型。南模生物炎症/自身免疫疾病评价平台自主研发了多种哮喘小鼠模型,在不同品系(C57BL/6,hIL4/hIL4R mice,BALB/c 等)中进行了验证,可用于哮喘治疗药物的药效评价。

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Fig.1 OVA induced Balb/c mice asthma model. (A) Body weight (B) Body weight change. (*P<0.05, **P<0.01 Vs Group2)

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Fig.2 OVA induced Balb/c mice asthma model. (A) Inflammatory cell number in BALF. (B) Eosinophils in BALF. (C) Eosinophils percentage in inflammatory cell. (D) Serum total IgE concentration.

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Fig.3 OVA induced asthma model in BALB/c mice. (A) Lung H&E and PAS stain(B) Inflammatory cell infiltration score (C) Bronchial score.

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Fig.1 Body weight of HDM induced hIL4/hIL4R mice asthma model (n=6, Data are presented as Mean and ± SEM).

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Fig.2 HDM induced hIL4/hIL4R mice asthma model. (A) Inflammatory cell number in BALF. (B) Eosinophils in BALF. (C) Eosinophils percentage in inflammatory cell. (D) Serum total IgE concentration. (n=6, Data are presented as Mean and ± SEM.) 

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Fig.3 HDM induced hIL4/hIL4R mice asthma model. (A) hIL-4 mRNA expression level. (B) mIL-8 mRNA expression level. (C) mIL-13 mRNA expression level. (D) mIL-6 mRNA expression level. (E) mIL-17a mRNA expression level.

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Fig.4 HDM induced hIL-4/hIL-4R mice asthma model. (A) Representative images of H&E staining. (B) Pathology score results. (n=6, Data are presented as Mean and ± SEM.) Magnification, ×5.

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Fig.5 HDM induced hIL-4/hIL-4R mice asthma model. (A) Representative images of PAS staining. (B)mucus score. (n=6, Data are presented as Mean and ± SEM.) Magnification, ×10.

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Fig1. HDM induced asthma in hTSLP/hTSLPR mice. (A) body weight (B) body weight change 

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Fig 2. HDM induced asthma in hTSLP/hTSLPR mice. (A) serum mIgE (B) serum HDM mIgE

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Fig3. HDM induced asthma in hTSLP/hTSLPR mice. (A) BALF mCD45 events (B) BALF Eos events (C) BALF Eos%/mCD45

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Fig4. HDM induced asthma in hTSLP/hTSLPR mice. (A) pathology score (B) Representative photographs of H&E and PAS -stained lung sections


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Fig 1. Body weight monitoring in an HDM-induced asthma model using C57BL/6 mice. (A) Body weight over time. (B) Percentage change in body weight relative to baseline.

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Fig 2. The efficacy of DEX on the HDM-induced asthma model in C57BL/6 mice. (A) Absolute number of eosinophils in BALF. (B) Percentage of eosinophils relative to total inflammatory cells. (C) Total serum IgE concentration.

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Fig 1. Body weight monitoring in an HDM-induced asthma model using C57BL/6 mice. (A) Body weight over time. (B) Percentage change in body weight relative to baseline.

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Fig 2. The efficacy of DEX on the HDM-induced asthma model in C57BL/6 mice. (A) Absolute number of eosinophils in BALF. (B) Percentage of eosinophils relative to total inflammatory cells. (C) Total serum IgE concentration.

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Fig 1. Analysis of inflammatory cell populations in BALF. Flow cytometric quantification of inflammatory cells in BALF. (A) Percentage of macrophages. (B) Percentage of eosinophils. (C) Percentage of lymphocytes.

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Fig 2. The efficacy Dupilumab and Tezepelumab on OVA+hTSLP-induced asthma model in hIL4/hIL4R/hTSLP/hCRLF2 mice. (A) Concentration of total serum IgE. (B) Concentration of OVA-specific serum IgE. (C) Relative mRNA expression of mCCL17 in lung tissue. (D) Relative mRNA expression of hIL-4 in lung tissue.

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Fig 3. Comprehensive histopathological assessment of lung injury.

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Fig 4. Comprehensive histopathological assessment of lung injury. (A) Inflammatory cell infiltration Score. (B) Eosinophil cell infiltration Score. (C) Bronchial Goblet Cell Hyperplasia Score. (D) Airway Basement Membrane Thickening Score. (E) Total Lung Injury Score. (F) PAS Staining Score.


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