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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Localization of neonatal Fc receptor for IgG in aggregated lymphoid nodules area in abomasum of Bactrian camels (Camelus bactrianus) of different ages

Fig. 4

Localization of FcRn in LMFR of fetus’ abomasum ALNA. From left to right column, the paraffin sections were stained with hematoxylin and eosin (H&E), immunohistochemistry for FcRn, hematoxylin counterstain (as negative control), respectively. a non-FAE represents non-follicle-associated epithelium in the top panel, and FcRn positive expression was mainly distributed in membrane of the epithelial cells (arrow); b FAE represents follicle-associated epithelium in the second panel from top to bottom, and FcRn positive expression was mainly distributed in membrane of the epithelial cells (arrow); c pLF represents primary lymphatic follicles in the third panel (star), and typical macrophages and dendritic cells (DCs) with high FcRn expression were not observed; d Vessel, FcRn was highly expressed both in vascular endothelial cells and smooth muscle cells (arrow); e Smooth muscle, FcRn was also highly expressed in basement membrane of smooth muscle (arrow). Original magnification: 400×

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