Expression of non-mast cell histidine decarboxylase in tumor-associated microvessels in human esophageal squamous cell carcinomas

APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica
Zhenfeng LiGuanglin Cui

Abstract

Histamine is produced by mast cells and many other types of cells. The role of histamine released from mast cells in promoting tumor angiogenesis has been intensively studied; however, the role of non-mast cell histamine in regulating tumor angiogenesis has been largely ignored. In this study, tissue specimen sections from 43 patients with esophageal squamous cell carcinoma (ESCC) and normal esophageal biopsies from 17 heath individuals obtained from a high incidence area of north China were used to assess changes in microvessel density (MVD) and non-mast cell L-histidine decarboxylase (HDC) (the only rate-limiting enzyme that catalyzes the formation of histamine from L-histidine) expression in the tumor microenvironment by immunohistochemistry (IHC). In addition, the cellular characterization of non-mast cell HDC-positive cells in microvessels was examined by double IHC combined with HDC/CD34 and HDC/PCNA antibodies. These IHC analyses revealed a significantly increased HDC-positive MVD in ESCC as compared with normal controls, which accounted for approximately 61% of CD34-labeled general MVD in ESCC. Furthermore, IHC in serial sections and double IHC showed that most of these HDC-positive cells were CD34-positive endothelial ...Continue Reading

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Citations

Apr 8, 2009·Cancer Immunology, Immunotherapy : CII·Guanglin CuiJon Florholmen
Dec 15, 2012·Pathology Oncology Research : POR·Jing CuiGuanglin Cui
Dec 3, 2011·Tumour Biology : the Journal of the International Society for Oncodevelopmental Biology and Medicine·Jinzhong LiuGuanglin Cui
Mar 21, 2020·Cancer Biotherapy & Radiopharmaceuticals·Xiaoshan ZhangGuanglin Cui
Nov 11, 2018·British Journal of Pharmacology·Noelia A MassariVanina A Medina

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