Identification and structural composition of the blood-spleen barrier in chickens

The Veterinary Journal
Qian ZhangQiu-Sheng Chen

Abstract

To identify the existence and composition of the blood-spleen barrier (BSB) in chickens, the microanatomical features of the spleen were investigated by light and transmission electron microscopy, intravenous injection of ink, acid phosphatase reaction, and silver impregnation. The results showed that the white pulp in chicken spleen consists of lymphoid nodules, periarteriolar lymphatic sheaths (PALS) and periellipsoidal lymphatic sheaths (PELS). There was no evidence for the presence of a marginal zone. The splenic ellipsoid was a unique structure, which functioned as a barrier for filtering and phagocytosis. Uptake of carbon particles was limited to the ellipsoid and PELS, 60 min after injection of carbon particles. Reticular fibres were densely distributed in the ellipsoid and extended into the PELS. Ellipsoid-associated cells (EACs), reticular cells and macrophages were acid phosphatase positive. The sheathed capillaries, surrounded by the ellipsoid, were similar to high endothelial venules (HEVs). These findings suggest that the BSB of chickens is present in the ellipsoid and PELS, protecting the spleen from invasion from circulating pathogens. The BSB was a reticular framework, between the arterial and venous vessels, wh...Continue Reading

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Citations

Oct 16, 2015·Micron : the International Research and Review Journal for Microscopy·Qian ZhangQiusheng Chen
May 16, 2015·The Veterinary Journal·Kimberley Vandevelde
Apr 11, 2019·Anatomia, histologia, embryologia·Desrayni HanadhitaSrihadi Agungpriyono
Dec 27, 2019·Anatomia, histologia, embryologia·Desrayni HanadhitaSrihadi Agungpriyono
Nov 20, 2016·Reproduction in Domestic Animals = Zuchthygiene·S R WuX J Yang
Apr 23, 2020·Animals : an Open Access Journal From MDPI·Vladimir Zmrhal, Petr Slama
Jun 14, 2019·Journal of Immunology Research·Qian ZhangQiusheng Chen
May 13, 2020·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Fatma El-Zahraa A Mustafa, Sara M M El-Desoky
Feb 23, 2020·Frontiers in Immunology·Qian ZhangGuo-Min Deng

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