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TCR-β/p53双敲除自发性结直肠癌模型(文献参考)

T细胞受体β链和p53双敲除小鼠(TCR-/- p53-/-)表现出高发的自发性结直肠癌。常规微生物群对于回盲部/盲肠腺癌的发展是必需的。

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

TCR-β/p53双敲除自发性结直肠癌模型(文献参考)

Age
not reported in source; ex-vivo endpoint-collected fixed tissue section, HE readout
Tissue
intestine

TCR-β/p53双敲除自发性结直肠癌模型(文献参考)

Age
未记载周龄,终点取材组织切片 HE 判读(离体)
Tissue
intestine

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
TCR-β/p53双敲除自发性结直肠癌模型(文献参考)
Species
mouse
Taxonomy ID
10090
Strain
TCR-β-/- p53-/-
Genotype / zygosity
TCR-β-/- p53-/-
Allele
TCR-β敲除,p53敲除

Biological characteristics

Research questions
综述总结自发性结直肠癌模型TCR/p53双敲除。
Limitations
文献参考模型,不代表公司实际保有、供应或质检。本包内无原研实际使用,依据为综述归纳。该模型为基因敲除自发模型,其肿瘤发生依赖于特定基因组合的缺失,可能无法代表散发性结直肠癌的分子异质性。微生物群状态对肿瘤发生有重要影响,需要在特定微生物环境下维持。

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. Yoon Kichul, Kim Nayoung. The Effect of Microbiota on Colon Carcinogenesis. Journal of cancer prevention. 2018; PMID: 30370256
  2. 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
  3. Epredia Signature Series Hematoxylin (7221), 产品信息页, Fisher Scientific
  4. Epredia Signature Series Bluing Reagent (7301), 产品信息页, Fisher Scientific
  5. Epredia Signature Series Eosin Y (7111), 产品信息页, Fisher Scientific
  6. Xylene, Fisherbrand HistoPrep (HC7001GAL), 产品信息页, Fisher Scientific
  7. Fisher Chemical Permount Mounting Medium (SP15 产品族), 产品信息页, Fisher Scientific
  8. Ethanol (CID 702, CAS 64-17-5), PubChem 化合物标准记录
  9. ARRIVE 2.0 guidelines