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三重阴性乳腺癌中的上皮-介质细胞过渡概况可能解释其具有攻击性的性质
S F Chiew1, L M Looi2, P L Cheah2
1University of Malaya Medical Centre, Department of Pathology, 59100 Kuala Lumpur, Malaysia. jackngchintat@gmail.com.
The Malaysian journal of pathology
|December 28, 2023
概括
表皮-介质细胞过渡 (EMT) 在三阴性 (TN) 乳腺癌中更常见,与生存率较差相关. 不同的EMT档案,如EMT-V和EMT-CV,与TN乳腺癌的攻击性特征和转移有关.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 分子病理学分子病理学
背景情况:
- 表皮-介质细胞过渡 (EMT) 是癌症进展中的一个关键过程.
- 三重阴性 (TN) 乳腺癌在分子亚型中表现出最差的生存率.
- 了解TN乳腺癌的EMT对于改善患者的治疗结果至关重要.
研究的目的:
- 研究不同乳腺癌亚型中EMT标记物 (E-cadherin和vimentin) 的表达.
- 为了将EMT表达与淋巴血管和/或淋巴结入侵相关联.
- 在TN乳腺癌中定义和分析不同的EMT配置文件.
主要方法:
- 免疫组织化学被用来评估49个TN,45个光和25个HER2丰富乳腺癌中的E-cadherin和vimentin表达.
- 表达水平是基于癌细胞百分比和染色强度的半量化.
- 通过低E-cadherin和/或高vimentin得分来定义EMT阳性;确定了特定的子集 (EMT-CV,EMT-C,EMT-V).
主要成果:
- 总体而言,31.9%的乳腺癌患者表现出EMT表达.
- 在TN乳腺癌 (59.2%) 中,EMT的发病率明显高于光线 (13.3%) 和HER2丰富 (12%) 亚型 (p<0.05).
- 在具有侵袭性的癌症中,EMT阳性在TN中最高 (66.7%),其次是HER2丰富 (11.8%) 和光线 (7.4%) (p<0.05).
结论:
- EMT是TN乳腺癌的重要因素,与其侵略性有关.
- 在TN癌症中占主导地位的EMT概况是EMT-V (与茎结相关),而EMT-CV (与血管转移相关) 仅在TN病例中发现.
- 不同的EMT配置文件可能导致TN乳腺癌中观察到的明显的攻击性特征.
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