Histological, histochemical and immunohistochemical study of the haemal nodes of the dromedary camel

Anatomia, histologia, embryologia
M Zidan, R Pabst

Abstract

Haemal nodes are lymphoid organs found in various mammals and some birds. The structure of haemal nodes has been described in a number of species but not yet in the camel. Therefore, haemal nodes from 10 camels were studied histologically and tested for CD3, CD22, major histocompatibility complex (MHC) class II/DR, alpha-smooth muscle actin and for the demonstration of acid and alkaline phosphatases. The haemal nodes were of spherical or kidney shape with one or two hili and had a capsule and trabeculae of connective tissue and smooth muscles. The main parenchyma was composed of a cortex and a medulla. The cortex was formed from lymphoid follicles and diffuse interfollicular lymphocytes. The medulla consisted of lymphoid cords separated by medullary sinuses. The interfollicular lymphocytes and those in the medullary cord were CD3-positive. The lymphoid follicles showed CD22-positive cells. MHC class II/DR was expressed by most cells of the parenchyma. There were also subcapsular, peritrabecular and medullary blood sinuses. Afferent and efferent lymphatics and lymphatic sinuses were also found. Acid phosphatase-positive cells were localized mainly in the marginal, the interfollicular zone and in the medullary cord. Alkaline phos...Continue Reading

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Citations

Apr 14, 2010·Cell and Tissue Research·Mohamed Zidan, Reinhard Pabst
Nov 5, 2013·Veterinary Immunology and Immunopathology·Weidong ZhangMasahiro Yasuda
Jul 14, 2010·Anatomia, histologia, embryologia·Y Akaydin Bozkurt, M Kabak
Jan 13, 2012·Biotechnic & Histochemistry : Official Publication of the Biological Stain Commission·T OzaydinM F Aydin
Sep 7, 2018·Biotechnic & Histochemistry : Official Publication of the Biological Stain Commission·Y A BozkurtB Onuk
Jul 18, 2006·Acta Veterinaria Hungarica·Rita GaramvölgyiI Repa

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