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导管内 papillary 粘菌性新生体:对其起源和命名的新见解
Andresa Borges Soares1, Lucas Novaes Teixeira1, Joana Vitória Batista Costa Melo1
1Faculdade São Leopoldo Mandic, Campinas, Brazil.
概括
导管内皮质粘膜瘤 (IPMN) 粘膜细胞与粘膜皮质癌 (MEC) 和皮质细胞瘤 (PC) 的细胞不同. IPMN很可能源于小唾液腺分泌细胞,这导致了提出的新名称:粘性状细胞癌.
科学领域:
- 在瘤学瘤学.
- 病理学 病理学 病理学
- 腺体新生体的新生体.
背景情况:
- 粘菌细胞是唾液腺瘤的关键组成部分,如导管内皮质粘菌瘤 (IPMN).
- IPMN是一种低度瘤,其特征是乳头囊结构中的粘膜柱状细胞.
- 需要将IPMN粘膜细胞与粘膜皮质癌 (MEC) 和乳头细胞瘤 (PC) 的细胞进行比较.
研究的目的:
- 为了比较IPMN,MEC和PC中的粘膜细胞的免疫组织化学概况.
- 根据其粘膜细胞特征,阐明IPMN的细胞起源.
- 建议对IPMN进行更精细的分类.
主要方法:
- 免疫组织化学被用来分析粘膜细胞.
- 该研究包括IPMN,MEC (n=4) 的零星粘膜细胞和PC (n=3).
- 具体的标记物 (CK7,CK18,CK14,SMA,DOG1,NKX3.1,p63) 被用于进行比较.
主要成果:
- IPMN细胞对CK7,CK18,DOG1和NKX3.1呈阳性,对CK14,SMA和p63.3呈阴性.
- MEC和PC粘膜细胞对CK7呈阳性,但对CK18,SMA,DOG1和NKX3.1.1呈阴性.
- 在PC,MEC囊性区域和正常的粘液唾液腺中发现了基底细胞 (CK14,p63阳性),但在IPMN中没有发现.
结论:
- IPMN粘膜细胞的免疫组织化学特征类似于小唾液腺分泌细胞,与MEC和PC不同.
- IPMN似乎源于小粘液唾液腺分泌细胞的转化.
- 在IPMN中缺乏基底细胞支持其独特的起源,这导致了被提议的粘膜状细胞癌的指定.
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