相关实验视频
Updated: Jul 13, 2026

08:51
Evaluation of Mammary Gland Development and Function in Mouse Models
Published on: July 21, 2011
37.1K
乳腺发育的不同路径:揭示细胞动态在突然和逐渐参与的小鼠模型中
Sarmila Majumder1, Sanjay Mishra2, Neelam Shinde3
1Division of Medical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA. sarmila.majumder@osumc.edu.
Breast cancer research : BCR
|January 4, 2025
概括
缺乏母乳养会导致突发性内置 (AI),导致炎症和免疫细胞变化,促进癌前细胞,增加三阴性乳腺癌 (TNBC) 风险. 从母乳养开始逐渐的内置 (GI) 提供了一个保护性的,可控的过程.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 流行病学研究将缺乏母乳养与乳腺癌风险增加联系在一起,特别是三阴性乳腺癌 (TNBC).
- 短期或没有母乳养后的突然内置 (AI),与长期母乳养的逐渐内置 (GI) 相比,与乳腺腺癌前变化有关.
- 存在母乳养差异,与高加索女性相比,非洲裔美国女性的发病率较低,与较高的TNBC患病率相关.
研究的目的:
- 调查在突发发育 (AI) 过程中驱动小鼠乳腺癌前变化的早期机制.
- 阐明免疫细胞动态和分子信号在人工智能诱导的乳腺改变中的作用.
- 了解人工智能如何与渐进性内置 (GI) 相比,增加乳腺癌风险.
主要方法:
- 使用一种小鼠模型,比较乳腺突发内置 (AI) 和渐进内置 (GI).
- 使用TUNEL测定和qPCR评估细胞死亡动力学和基因表达.
- 通过流量细胞计,细胞因子阵列,多重免疫光和3D有机体培养来研究免疫细胞透,细胞因子概况和光原细胞行为.
主要成果:
- 人工智能诱导了快速的细胞死亡,DNA修复反应和免疫抑制性髓状细胞的透,创造了一个慢性炎症的微环境.
- 人工智能腺体表现出质衍生抑制细胞 (MDSC) 和M2类巨细胞的增加,这促进了特定光原细胞 (ELF5+/ERα-) 的扩张.
- 与肠道腺相比,AI腺体表现出较高的CCL9产生和ELF5+/WNT5a+光细胞的增加,这表明与GI腺体相比,AI腺体呈现出较高的CCL9产生和ELF5+/WNT5a+光细胞的增加.
结论:
- 在AI和GI之间的乳腺内置动态中存在显著差异,特别是在早期阶段.
- 在AI期间由免疫细胞分泌的CCL9驱动了假定TNBC前体细胞 (Elf5+/ERα-光原体细胞) 的扩张.
- 这些发现确定了急剧卷发的早期事件与患三阴性乳腺癌的风险增加之间的联系.
相关概念视频
Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...

