骨髓 乳腺细胞内导性巨细胞 (泡细胞) 的起源
Sanford H Barsky1, Krista Mcphail2, Justin Wang3
1Department of Pathology, Anatomy and Cell Biology, The Clinical and Translational Research Center of Excellence, Meharry Medical College, 1005 Dr. D.B. Todd Jr. Boulevard, Nashville, TN 37208, USA.
International journal of molecular sciences
|February 26, 2025
概括
乳腺导管内泡细胞,通常在乳腺分泌物中发现,起源于骨髓. 这些细胞细胞不繁殖,它们的数量在怀孕和某些乳腺疾病期间增加.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 乳腺导管内巨细胞或泡细胞在人类乳腺分泌物中很普遍,但它们的起源尚未被证明.
- 这些细胞在诸如怀孕,纤维囊性疾病和管道癌 in situ (DCIS) 等疾病中增加,这表明它们在导管内变化中的作用.
- 之前的研究表明了巨细胞的血统,但缺乏明确的起源证明.
研究的目的:
- 为了确定乳腺导管内泡细胞的起源.
- 为了调查这些泡细胞是否来自骨髓前体.
主要方法:
- 使用光在位杂交 (FISH) 和微观卫星标记物对性别不匹配的骨髓移植接受者的乳腺活检进行分析.
- 在小鼠模型 (ROSA26 lacZ记者小鼠) 中进行实验性骨髓移植,随后诱导乳腺疾病.
- 评估使用lacZ报告员和骨髓性巨细胞谱系标记物的捐赠者衍生的导管内泡细胞.
主要成果:
- 移植受体中的人体内导管泡细胞被证实是骨髓供体来源的.
- 在小鼠模型中,移植的骨髓衍生细胞在导管内泡细胞内表达了lacZ记者和巨细胞标记物.
- 在移植小鼠中,捐赠者衍生的泡细胞数量显著增加 (伪怀孕是5倍,瘤是10倍).
结论:
- 乳腺导管内泡细胞绝对来自骨髓.
- 这些发现确立了乳腺通道中细胞泡细胞的明确起源.
- 这项研究强调了骨髓衍生的巨细胞对乳腺生理学和病理学的贡献.
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