Human/Hamster ACE-2 Antibody

Detection of Human ACE‑2 by Western Blot. Western blot shows lysates of NS0 mouse myeloma cell line and human kidney tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human ACE-2 Monoclonal Antibody (Catalog # MAB933) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF007). A specific band was detected for ACE-2 at approximately 110 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

ACE‑2 in Human Kidney. ACE-2 was detected in immersion fixed paraffin-embedded sections of human kidney using Mouse Anti-Human ACE-2 Monoclonal Antibody (Catalog # MAB933) at 15 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to cell surface of epithelial cells in convoluted tubules. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

ACE‑2 in Hamster Lung. ACE‑2 was detected in immersion fixed paraffin-embedded sections of hamster lung using Mouse Anti-Human ACE‑2 Monoclonal Antibody (Catalog # MAB933) at 10 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to respiratory bronchioles. Staining was performed our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Detection of Human ACE-2 by Immunohistochemistry In microvasculature, ACE2 is putatively expressed in pericytes. (A) Representative image of human pancreatic Formalin-Fixed Paraffin Embedded (FFPE) section stained for ACE2 in case #301118. In panel-a, a representative image of a pancreatic section showing two adjacent lobules (blue and red dotted lines) with different staining for ACE2 in endothelial cells/pericytes. A specific segmentation of the two lobules with high (blue) (zoom-in, panel-b) and low or null expression of ACE2 (red) (zoom-in, panel-c) is shown, suggesting lobularity of ACE2 expression in exocrine endothelial cells/pericytes of human pancreas. Scale bar in panel-a: 100 µm. Scale bar in panels-b and -c: 30 µm. (B) Double immunofluorescence staining of ACE2 (green) and CD31 (red) in FFPE pancreas sections from Body01A of Case #110118 (panels-a to -d) and of Body01B of Case #141117 (panels-e to -i). Digital zoom-in overlay images are shown in panels-d, -h and -i. Scale bar in panels-d and -g: 100 μm. Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/33281748), licensed under a CC-BY license. Not internally tested by R&D Systems.

Detection of Human ACE-2 by Immunohistochemistry ACE2 staining pattern in human pancreas. Immunohistochemistry for ACE2 in human pancreatic tissue sections (case #110118) using R&D MAB933 antibody. ACE2 is markedly expressed in microvasculature associated cells (A, B) in some rare ductal cells (C, D) and in a subset of endocrine cells within pancreatic islets (E, F). Scale bars in (A, C, E) 150 µm. Scale bars in (B, D, F) 70 µm. Zoom-in images are reported in (B, D, F). Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/33281748), licensed under a CC-BY license. Not internally tested by R&D Systems.

Detection of Human ACE-2 by Immunohistochemistry In microvasculature, ACE2 is putatively expressed in pericytes. (A) Representative image of human pancreatic Formalin-Fixed Paraffin Embedded (FFPE) section stained for ACE2 in case #301118. In panel-a, a representative image of a pancreatic section showing two adjacent lobules (blue and red dotted lines) with different staining for ACE2 in endothelial cells/pericytes. A specific segmentation of the two lobules with high (blue) (zoom-in, panel-b) and low or null expression of ACE2 (red) (zoom-in, panel-c) is shown, suggesting lobularity of ACE2 expression in exocrine endothelial cells/pericytes of human pancreas. Scale bar in panel-a: 100 µm. Scale bar in panels-b and -c: 30 µm. (B) Double immunofluorescence staining of ACE2 (green) and CD31 (red) in FFPE pancreas sections from Body01A of Case #110118 (panels-a to -d) and of Body01B of Case #141117 (panels-e to -i). Digital zoom-in overlay images are shown in panels-d, -h and -i. Scale bar in panels-d and -g: 100 μm. Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/33281748), licensed under a CC-BY license. Not internally tested by R&D Systems.

Detection of Human ACE-2 by Immunocytochemistry/Immunofluorescence In microvasculature, ACE2 is putatively expressed in pericytes. (A) Representative image of human pancreatic Formalin-Fixed Paraffin Embedded (FFPE) section stained for ACE2 in case #301118. In panel-a, a representative image of a pancreatic section showing two adjacent lobules (blue and red dotted lines) with different staining for ACE2 in endothelial cells/pericytes. A specific segmentation of the two lobules with high (blue) (zoom-in, panel-b) and low or null expression of ACE2 (red) (zoom-in, panel-c) is shown, suggesting lobularity of ACE2 expression in exocrine endothelial cells/pericytes of human pancreas. Scale bar in panel-a: 100 µm. Scale bar in panels-b and -c: 30 µm. (B) Double immunofluorescence staining of ACE2 (green) and CD31 (red) in FFPE pancreas sections from Body01A of Case #110118 (panels-a to -d) and of Body01B of Case #141117 (panels-e to -i). Digital zoom-in overlay images are shown in panels-d, -h and -i. Scale bar in panels-d and -g: 100 μm. Image collected and cropped by CiteAb from the following publication (https://pubmed.ncbi.nlm.nih.gov/33281748), licensed under a CC-BY license. Not internally tested by R&D Systems.