肠道类器官应用于治疗DSS诱导的溃疡性结肠炎
溃疡性结肠炎(ulcerative colitis,UC)是一种慢性非特异性结肠炎性反应,病变主要位于结肠的黏膜层,临床表现为持续或反复发作的腹泻、黏液脓血样便伴腹痛,该病病程长,治愈难度大,且与结肠癌关系密切,属于消化系统难治疾病之一。
随着近些年细胞治疗的发展,研究人员也开始在细胞领域探索新的治疗方法。随着类器官研究的大热,肠道干细胞成为肠道损伤再生、肠癌等多种肠道疾病研究的焦点。
肠道类器官的培养
随着近些年细胞治疗的发展,类器官这个词,也从陌生逐渐被熟知。
肠道类器官的培养——将分离的肠道隐窝或干细胞植入含有多种生长因子的基质胶中,在基质3D支撑下生成具有肠道上皮样结构的微型空心球体,这些球体被称为肠道类器官。这些类器官包含有所有种类的肠道功能上皮细胞,可以较大程度模拟肠道组织,可被广泛应用于炎症性肠病、肠道损伤再生、肠癌等多种肠道疾病的研究。


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图1 小鼠小肠类器官体外培养结果图
类器官在治疗溃疡性结肠炎疾病中的应用
日本东京医科齿科大学(TMDU)研究团队提出了一个详细方案,用移植的3D干细胞类器官结构来再生在结肠中受损的肠道组织。
利用干细胞的再生能力,使用肠道类器官来替代受损的肠道组织。通常情况下,溃疡性结肠炎的大部分上皮细胞受损,为了开发将肠类器官移植到结肠的系统,研究人员使用硫酸葡聚糖钠(DSS)损伤模型,通过一根柔性导管将类器官注入患有结肠炎的小鼠结肠中,并用胶水封闭肛门边缘,使培养的上皮细胞能够完全附着在受损表明并填充干细胞壁龛。实验结果表明,肠道内壁其中受体的部分几乎完整的上皮衬里已被供体细胞所取代。
Yeasen DSS造模数据
目前有多种动物模型被广泛用于研究炎症性肠炎(inflammatory bowel disease,IBD)的病因、发病机制及测试新开发药物药效等,尤其以葡聚糖硫酸钠盐结肠炎(ulcerative colitis,UC)模型应用最广。
YEASEN提供高品质葡聚糖硫酸钠盐(Dextran Sulfate Sodium Salt,DSS MW:36000~50000),Cat#60316ES,高纯度(98%),含硫量(16-20%),游离硫(<0.2%)。
1. 小鼠体重下降
图2 Yeasen DSS(货号:60316ES,批号:D1124051)造模数据(C57/B6J,雌鼠,8 周龄)
2. 小鼠结肠炎H&E染色结果
图3 H&E染色结果(Gao X, et al. The Journal of Nutritional Biochemistry, 2020, 83.)
l 实验动物: BALB/c,雌性,6-8 周龄,25 g
l 实验方法: 3.5% DSS自由饮水7天
3. 小鼠结肠癌H&E染色结果
图4 H&E染色结果(Jia-Rong Huang, et al.Frontiers in Pharmacology.2020.586885)
l 实验动物: BALB/c,雄性,7周龄
l DSS浓度: 2.5%
l AOM浓度:10 mg/kg
l 实验周期:10周
相关试剂
结肠炎建模
|
分类 |
产品名称 |
货号 |
规格 |
|
结肠炎建模试剂 |
60316ES25/60/76/80 |
25 /100 /500 g/1 kg |
|
|
模型验证 |
60524ES60 |
2×100 mL |
|
|
60403ES60 |
100 T |
||
|
60534ES50/60 |
6×50 mL/6×100 mL |
||
|
结肠炎/结肠癌治疗药物 |
60317ES25/60 |
25 /100g |
|
|
60320ES08/ES25 |
5 /25 g |
||
|
51412ES60 |
100 mg |
适用于肠道类器官培养的试剂
|
分类 |
产品名称 |
货号 |
规格 |
|
基础培养基添加物 |
40183ES08/10 |
5 /10 mL |
|
|
60706ES08 |
5mL |
||
|
60703ES10 |
10mL |
||
|
B-27 supplement without Vitamin A,serum free,50X B-27无血清添加剂,去除维生素A,50X |
60704ES10 |
10mL |
|
|
B-27 supplement, minus antioxidants, serum free,50X B-27无血清添加剂,无抗氧化剂,50X |
60705ES10 |
10mL |
|
|
60701ES20/60/76/80 |
20/100/500mL/1L |
||
|
Penicillin-Streptomycin (100×), Suitable for Cell Culture 细胞培养用青霉素-链霉素(双抗) |
60162ES76 |
100 mL |
|
|
HEPES Free Acid, Cell Culture Grade N-(2-羟乙基)哌嗪-N’-(2-乙磺酸),细胞培养级 |
60110ES60 |
100 g |
|
|
小分子化合物 |
53006ES |
1 mg/5 mg/10 mg |
|
|
53002ES |
1 mg/5 mg/10 mg |
||
|
53003ES |
2 mg/5 mg/10 mg |
||
|
53005ES |
5 mg/10 mg/25 mg |
||
|
51402ES |
1 g/5 g |
||
|
细胞因子 |
92701ES |
100 μg/500 μg |
|
|
91306ES |
5 μg/100 μg/500 μg |
||
|
92528ES |
5 μg/100 μg/500 μg |
||
|
92274ES |
100 μg/1 mg |
||
|
92276ES10/60/76/80 |
10/100/500 μg/1 mg |
DSS客户文献(不完全统计)
[1] Li Zhao, Fei Wang,Zhengwei Cai,et al.Improving drug utilization platform with injectable mucoadhesive hydrogel for treating ulcerative colitis[J].chemical engineering journal.424(2021)130464.IF=16.744
[2] Lingjun Tong, Haining Hao, Zhe Zhang,et al.Milk-derived extracellular vesicles alleviate ulcerative colitis by regulating the gut immunity and reshaping the gut microbiota[J].Theranostics.2021; 11(17): 8570-8586 IF=11.556
[3] Li, Y., Dong, J., Xiao, H., Zhang, S., Wang, B., Cui, M., & Fan, S. Gut commensal derived-valeric acid protects against radiation injuries. Gut Microbes,.2020 .1–18.IF=10.245
[4] Jingjing Gan, Yuxiao Liu, Lingyu Sun,et al.Orally administrated nucleotide-delivery particles from microfluidics for inflammatory bowel disease treatment[J].Applied Materials Today.2021 Dec;25:101231 IF=10.041
[5] Mengmeng Xu, Ying Kong, Nannan Chen,et al.Identification of Immune-Related Gene Signature and Prediction of CeRNA Network in Active Ulcerative Colitis[J].Frontiers in Immunology.2022; 13: 855645. IF=7.561
[6] JialiDong,YuanLi,HuiwenXiao,et al.Oral microbiota affects the efficacy and prognosis of radiotherapy for colorectal cancer in mouse models[J].Cell reports.2021, 109886.IF=9.423
[7] Hao H, Zhang X, Tong L, Liu Q,et al.Lactobacillus plantarumEffect of Extracellular Vesicles Derived From Q7 on Gut Microbiota and Ulcerative Colitis in Mice[J].Frontiers in Immunology.2021.777147 .IF=7.561
[8] Yaohua Fan,Yanqun Fan,Kunfeng Liu,et al.Edible Bird’s Nest Ameliorates Dextran Sulfate Sodium-Induced Ulcerative Colitis in C57BL/6J Mice by Restoring the Th17/Treg Cell Balance[J].Frontiers in Pharmacology.2021.632602.IF=7.561
[9] Jia-Rong Huang, Sheng-Te Wang, Meng-Ning Wei,et al.Piperlongumine Alleviates Mouse Colitis and Colitis-Associated Colorectal Cancer[J].Frontiers in Pharmacology.2020.586885. IF=7.561
[10] Gao X, Fan W, Tan L, et al. Soy isoflavones ameliorate experimental colitis by targeting ERα/NLRP3 inflammasome pathways[J]. The Journal of Nutritional Biochemistry, 2020, 83.IF=6.048
[11] Lujuan Xing, Lijuan Fu, Songmin Cao,et al.The Anti-Inflammatory Effect of Bovine Bone-Gelatin-Derived Peptides in LPS-Induced RAW264.7 Macrophages Cells and Dextran Sulfate Sodium-Induced C57BL/6 Mice[J]. Nutrients 2022, 14, 1479. IF=5.717
[12] Wang S, Huang J, Tan KS, et al.Isosteviol Sodium Ameliorates Dextran Sodium Sulfate-Induced Chronic Colitis through the Regulation of Metabolic Profiling, Macrophage Polarization, and NF-B Pathway[J].Oxidative Medicine and Cellular Longevity. 2022,4636618. IF=5.076
Dextran sulfate sodium salt,Mw 500,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 50,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 5,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 3,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 20,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 15,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 10,000 葡聚糖硫酸钠
Dextran sulfate sodium salt,Mw 1,500 葡聚糖硫酸钠
ColitCare® Dextran Sulfate Sodium Salt(DSS)结肠炎建模用葡聚糖硫酸钠盐 MW:36000~50000


