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81.
82.
Sebastian Dwertmann Rico Sebastian J. A. Schliesser Natalia Gorbokon David Dum Anne Menz Franziska Büscheck Andrea Hinsch Maximilian Lennartz Clara von Bargen Ahmed A. Bawahab Andreas M. Luebke Claudia Hube-Magg Christoph Fraune Patrick Lebok Till S. Clauditz Frank Jacobsen Guido Sauter Ria Uhlig Stefan Steurer Sarah Minner Andreas H. Marx Ronald Simon Eike Burandt Doris Hoeflmayer Till Krech Christian Bernreuther 《Pathology international》2023,73(7):281-296
Mucin 6 (MUC6) is a secreted gel-forming mucin covering the surfaces of gastrointestinal and other tissues. Published work demonstrates that MUC6 can also be expressed in several cancer types and can aid in the distinction of different tumor entities. To systematically analyze MUC6 expression in normal and cancerous tissues, a tissue microarray containing 15 412 samples from 119 different tumor types and subtypes as well as 608 samples of 76 different normal tissue types was analyzed by immunohistochemistry. At least a weak MUC6 positivity was seen in 50 of 119 (42%) tumor entities. Thirty-three tumor entities included tumors with strong positivity. MUC6 immunostaining was most frequent in mucinous carcinomas of the breast (44%), adenocarcinomas of the stomach (30%–40%) and esophagus (35%), and neuroendocrine carcinomas of the colon. Strong MUC6 staining was linked to advanced pT stage (p = 0.0464), defective mismatch repair status and right-sided tumor location (p < 0.0001 each) in colorectal cancer, as well as to high tumor grade (p = 0.0291), nodal metastasis (p = 0.0485), erb-b2 receptor tyrosine kinase 2 positivity (p < 0.0001) and negative estrogen receptor (p = 0.0332)/progesterone receptor (p = 0.0257) status in breast carcinomas of no special type. The broad range of tumor types with MUC6 expression limits the utility of MUC6 immunohistochemistry for the distinction of different tumor types. 相似文献
83.
Maximilian Lennartz Verena Sofia Ullmann Natalia Gorbokon Ria Uhlig Sebastian Dwertmann Rico Simon Kind Viktor Reiswich Florian Viehweger Martina Kluth Claudia Hube-Magg Christian Bernreuther Franziska Büscheck Devita Putri Till S. Clauditz Christoph Fraune Andrea Hinsch Frank Jacobsen Till Krech Patrick Lebock Stefan Steurer Eike Burandt Sarah Minner Andreas H. Marx Ronald Simon Guido Sauter Anne Menz 《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》2023,131(2):77-91
Cytokeratin 13 (CK13) is a type I acidic low molecular weight cytokeratin, which is mainly expressed in urothelium and in the squamous epithelium of various sites of origin. Loss of CK13 has been implicated in the development and progression of squamous epithelial neoplasms. To comprehensively determine CK13 expression in normal and neoplastic tissues, a tissue microarray containing 10,439 samples from 131 different tumor types and subtypes as well as 608 samples of 76 different normal tissue types was analyzed by immunohistochemistry. CK13 immunostaining was detectable in 42 (32.1%) of the 131 tumor categories including 24 (18.3%) tumor types with at least one strongly positive case. The highest rate of positive staining was found in various urothelial neoplasms (52.1–92.3%) including Brenner tumor of the ovary (86.8%) and in squamous cell carcinomas from various sites of origin (39.1–77.6%), Warthin tumors of parotid glands (66.7%), adenosquamous carcinomas of the cervix (33.3%), thymomas (16.0%), and endometroid carcinomas of the ovary (15.3%). Twenty other epithelial or germ cell neoplasms showed – a usually weak – CK13 positivity in less than 15% of the cases. In bladder cancer, reduced CK13 expression was linked to high grade and advanced stage (p < 0.0001 each). In squamous cell carcinoma of the cervix, reduced CK13 immunostaining was related to high grade (p = 0.0295) and shortened recurrence-free (p = 0.0094) and overall survival (p = 0.0274). In a combined analysis of 1,151 squamous cell carcinomas from 11 different sites of origin, reduced CK13 staining was linked to high grade (p = 0.0050). Our data provide a comprehensive overview on CK13 expression in normal and neoplastic human tissues. CK13 expression predominates in urothelial neoplasms and in squamous cell carcinomas of different organs, and a loss of CK13 expression is associated with aggressive disease in these tumors. 相似文献