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ApcMin/+ mouse model of intestinal polyposis

ApcMin/+ 为ENU诱变产生的常染色体显性突变模型,模拟人类家族性腺瘤性息肉病(FAP)。C57BL/6J遗传背景下的ApcMin/+ 小鼠在90日龄前小肠内多发病灶数超过50枚,肿瘤极少发生侵袭,但较大息肉出血引起的肠梗阻与贫血常导致小鼠于约150日龄死亡。该模型被公认为结直肠癌研究的先导模型,腺瘤主要分布于小肠,结肠病变较少。

Outcome measures

获得可供光学显微镜观察的 H&E 染色组织切片:细胞核蓝紫色、细胞质与结缔组织纤维粉红色,用于观察组织中细胞的整体结构与形态细节。本方案本身不产出病理评分数值,也不提供特定分子标志物的定量结果。

Experimental animals

Hematoxylin and Eosin (H&E) staining for histopathology
Age
8 周龄(PMID:27246043)
Tissue
intestine (small intestine predominant)

Experimental procedures

脱蜡(Dewaxing) 石蜡切片置于二甲苯中脱蜡 3 次,每次 00:03:00。 复水(Rehydration) 石蜡切片依次置于 100% 乙醇中 3 次、每次 00:03:00,再置于 95% 乙醇中 1 次、00:03:00,随后用水漂洗。 苏木素核染色(Hematoxylin staining) 石蜡切片以苏木素染液染色 00:00:20,随后在流水下冲洗 00:01:00。 分化与返蓝(Differentiation and bluing) 石蜡切片置于返蓝液中 00:01:00,随后在流水下冲洗 00:01:00;此步使细胞核呈现蓝色。 伊红染色(Eosin staining) 石蜡切片以伊红复染 00:00:10;此步使细胞质成分与结缔组织纤维呈现粉红色。 脱水与透明(Dehydration and Clearing) 石蜡切片依次置于 95% 乙醇中 00:02:00、100% 乙醇中 2 次、每次 00:02:00,随后置于二甲苯中 2 次、每次 00:02:00。 封片(Mounting) 石蜡切片以 Permount 封片介质加盖玻片封固。

Model identity

Model name
ApcMin/+ mouse model of intestinal polyposis
Species
mouse
Taxonomy ID
10090
Strain
C57BL/6 background (C57BL/6J and background-as-stated studies merged at family level; substrain differences per cited study)
Genetic background
C57BL/6 family
Genotype / zygosity
ApcMin/+
Allele
ApcMin

Biological characteristics

Phenotype stage
90日龄前小肠多发腺瘤形成,约150日龄因肠梗阻与贫血死亡。
Research questions
评估膳食组分对肠道肿瘤发生的影响;研究人类肠道肿瘤发生的遗传、环境与治疗学层面;评估R. intestinalis对ApcMin/+小鼠自发性肠道肿瘤形成的抑制作用及其与anti-PD-1疗效的协同;通过Bifidobacterium breve CCFM683、CLA及PPARγ轴解析CRC化学预防机制;评估Agathobacter rectalis及其代谢物EGC经表没食子儿茶素-SREBF2轴抑制结肠肿瘤发生的作用;研究胆囊切除相关菌群失调对结直肠肿瘤发生的促进效应;检测ApcMin/+小鼠肠黏膜与肿瘤中HMGA1 mRNA及蛋白的表达上调;分析GNAS R201C活化突变与Apc缺失在小肠道腺瘤形成中的协同效应;考察DSS诱导性结肠炎背景下IQ对扁平型与息肉型炎症相关肿瘤的差异性作用;评价妥芬那酸对肠道息肉形成的化学预防效应。
Limitations
文献参考模型,不代表公司实际保有、供应或质检。本包内多项原研(R. intestinalis干预、Bifidobacterium breve CCFM683/CLA-PPARγ轴、Agathobacter rectalis/EGC轴、胆囊切除后菌群失调、HMGA1表达分析、GNAS-Apc协同、IQ/DSS炎症相关肿瘤及妥芬那酸干预等)实际采用该模型开展结直肠癌研究。模型局限:腺瘤主要发生于小肠,结肠病变较少,与人类以结肠为主的结直肠癌存在解剖部位差异;肿瘤极少发生侵袭;无菌与常规ApcMin/+小鼠在腺瘤发育上无显著差异,提示该模型的肿瘤发生具有微生物非依赖性。

Experimental methods

Experimental protocols

  • Hematoxylin and Eosin (H&E) staining for histopathology

    Hematoxylin and eosin (H&E) staining of fixed, paraffin-embedded tissue sections (4 μm). The workflow covers dewaxing, rehydration, hematoxylin nuclear staining, bluing, eosin counterstaining, dehydration and clearing, and coverslipping, yielding blue-purple nuclei and pink cytoplasm and connective tissue fibers for light-microscopic assessment of cellular and tissue morphology.

Reagents and materials

References

  1. Tammariello Alexandra E, Milner John A. Mouse models for unraveling the importance of diet in colon cancer prevention. The Journal of nutritional biochemistry. 2010; PMID: 20122631
  2. Bush Bethany M, Brock Ashton T, Deng Jiayue A, Nelson Ronald A, Sumter Takita Felder. The Wnt/β-catenin/T-cell factor 4 pathway up-regulates high-mobility group A1 expression in colon cancer. Cell biochemistry and function. 2013; PMID: 22961697
  3. Nalbantoğlu ILKe, Blanc Valerie, Davidson Nicholas O. Characterization of Colorectal Cancer Development in Apc (min/+) Mice. Methods in molecular biology (Clifton, N.J.). 2016; PMID: 27246043
  4. Yoon Kichul, Kim Nayoung. The Effect of Microbiota on Colon Carcinogenesis. Journal of cancer prevention. 2018; PMID: 30370256
  5. Tang Bo, Li Shengpeng, Li Xin, He Jialin, Zhou An, Wu Lingyi. Cholecystectomy-related gut microbiota dysbiosis exacerbates colorectal tumorigenesis. Nature communications. 2025; PMID: 40819131
  6. Jackstadt Rene, Sansom Owen J. Mouse models of intestinal cancer. The Journal of pathology. 2016; PMID: 26414675
  7. Kang Xing, Liu Changan, Ding Yanqiang, Ni Yunbi, Ji Fenfen, Lau Harry Cheuk Hay. Roseburia intestinalis generated butyrate boosts anti-PD-1 efficacy in colorectal cancer by activating cytotoxic CD8 + T cells. Gut. 2023; PMID: 37491158
  8. Chen Yang, Fang Huiting, Chen Haiqin, Liu Xiaoming, Zhao Jianxin, Stanton Catherine. Bifidobacterium inhibits the progression of colorectal tumorigenesis in mice through fatty acid isomerization and gut microbiota modulation. Gut microbes. 2025; PMID: 39924893
  9. Lu Jiawei, Sun Yuting, Zeng Yao, Lau Effie Yin Tung, Lan Zhien, Ye Silin. Agathobacter rectalis suppresses colorectal tumorigenesis via an epigallocatechin-SREBF2 axis controlling cholesterol metabolism. Gut microbes. 2026; PMID: 42665998
  10. Wilson C H, McIntyre R E, Arends M J, Adams D J. The activating mutation R201C in GNAS promotes intestinal tumourigenesis in Apc(Min/+) mice through activation of Wnt and ERK1/2 MAPK pathways. Oncogene. 2010; PMID: 20531296
  11. Chang Wen-Chi L, Zenser Terry V, Cooper Harry S, Clapper Margie L. Differential response of flat and polypoid colitis-associated colorectal neoplasias to chemopreventive agents and heterocyclic amines. Cancer letters. 2013; PMID: 23415736
  12. Zhang Xiaobo, Lee Seong-Ho, Min Kyung-Won, McEntee Michael F, Jeong Jin Boo, Li Qingwang. The involvement of endoplasmic reticulum stress in the suppression of colorectal tumorigenesis by tolfenamic acid. Cancer prevention research (Philadelphia, Pa.). 2013; PMID: 24104354
  13. Nathalia L. Oliveira; Samantha Gruenheid. Hematoxylin and Eosin (H&E) staining for histopathology. protocols.io, v1, 2026-07-31. DOI: 10.17504/protocols.io.kxygxr9jdg8j
  14. Epredia Signature Series Hematoxylin (7221), 产品信息页, Fisher Scientific
  15. Epredia Signature Series Bluing Reagent (7301), 产品信息页, Fisher Scientific
  16. Epredia Signature Series Eosin Y (7111), 产品信息页, Fisher Scientific
  17. Xylene, Fisherbrand HistoPrep (HC7001GAL), 产品信息页, Fisher Scientific
  18. Fisher Chemical Permount Mounting Medium (SP15 产品族), 产品信息页, Fisher Scientific
  19. Ethanol (CID 702, CAS 64-17-5), PubChem 化合物标准记录
  20. ARRIVE 2.0 guidelines