Journal: bioRxiv
Article Title: Factor XI localization in human deep venous thrombus and function of activated factor XI on venous thrombus formation and hemostasis in rabbit
doi: 10.1101/2023.09.19.558346
Figure Lengend Snippet: A . Representative immunofluorescent images of fresh component of DVT. Upper row shows CF488-labeled FXI (green), CD568-labeled fibrin (red), and merged images. Middle row shows CF488-labeled FXI, CD568-labeled von Willebrand factor (VWF), and merged images. Lower row shows CF488-labeled FXI, CD568-labeled glycophorin A, and merged images. FXI was closely localized with fibrin, and partly localized with VWF, a marker of platelets. Glycophorin A, a marker of erythrocytes, is predominantly surrounded by FXI. B . Representative immunohistochemical images in fresh and organizing areas of DVT. The organizing areas were confirmed by presence of CD34 immunopositive cells, corresponding to endothelialization/ organization, while the fresh area was confirmed by absence of CD34 immunopositive cells. FXI localized fibrin– and erythrocyte-rich fresh area. In the fresh area, aggregated clusters of platelets and sparsely distributed neutrophils are present. Inset in CD66b represents a high-magnification image of the dashed square. In the organizing area, immunoreaction for FXI, fibrin, glycoprotein IIb/IIIa (GPIIb/IIIa), glycophorin A, or CD66b is modest or focal. C . Immunopositive area for FXI, fibrin, GPIIb/IIIa, and glycophorin A, and CD66b-immunopositive cell density in non-organizing (CD34-immunonegative) and organizing (CD34-immunopositive) areas. (Mann-Whitney U-test)
Article Snippet: Briefly, consecutive 4-μm slices of human aspirated thrombi were immunohistochemically stained using antibodies against CD34 (mouse monoclonal, clone QBEnd10; Dako/Agilent), FXI (LSBio), fibrin (Millipore), anti-platelet glycoprotein (GP) IIb/IIIa (Sheep monoclonal, Affinity Biologicals Inc., Ancaster, Canada), glycophorin A (Dako/Agilent), and CD66b (mouse monoclonal, clone 6/40c; BioLegend, San Diego, CA, USA).
Techniques: Labeling, Marker, Immunohistochemistry, MANN-WHITNEY