Human Serpin E1/PAI-1 Antibody Summary
Gly21-Pro402
Accession # P05121
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
![Detection of Human Serpin E1/PAI-1 antibody by Western Blot. Detection of Human Serpin E1/PAI-1 antibody by Western Blot.](https://resources.rndsystems.com/images/datasheets/antibody/Serpin_E1_AF1786_Western_Blot_20035.jpg)
Detection of Human Serpin E1/PAI‑1 by Western Blot. Western blot shows lysates of HUVEC human umbilical vein endothelial cells. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human Serpin E1/PAI-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1786) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Serpin E1/PAI-1 at approximately 45 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
![Serpin E1/PAI-1 antibody in Human Liver Cancer Tissue by Immunohistochemistry (IHC-P). Serpin E1/PAI-1 antibody in Human Liver Cancer Tissue by Immunohistochemistry (IHC-P).](https://resources.rndsystems.com/images/datasheets/antibody/Serpin_E1_AF1786_Immunohistochemistry_9759.jpg)
Serpin E1/PAI‑1 in Human Liver Cancer Tissue. Serpin E1/PAI-1 was detected in immersion fixed paraffin-embedded sections of human liver cancer tissue using Goat Anti-Human Serpin E1/PAI-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1786) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
![Detection of Human Serpin E1/PAI-1 antibody by Simple Western<sup>TM</sup>. Detection of Human Serpin E1/PAI-1 antibody by Simple Western<sup>TM</sup>.](https://resources.rndsystems.com/images/datasheets/antibody/Serpin_E1_AF1786_Simple_Western_20045.jpg)
Detection of Human Serpin E1/PAI‑1 by Simple WesternTM. Simple Western lane view shows lysates of HUVEC human umbilical vein endothelial cells, loaded at 0.2 mg/mL. A specific band was detected for Serpin E1/PAI‑1 at approximately 54 kDa (as indicated) using 2.5 µg/mL of Goat Anti-Human Serpin E1/PAI‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1786) followed by 1:50 dilution of HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF109). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
![Neutralization of Serpin E1/ PAI‑1 Activity by Human Serpin E1/PAI‑1 Antibody. Neutralization of Serpin E1/ PAI‑1 Activity by Human Serpin E1/PAI‑1 Antibody.](https://resources.rndsystems.com/images/datasheets/antibody/Serpin_E1_AF1786_Block_Neutralize_10966.jpg)
Neutralization of Serpin E1/ PAI‑1 Activity by Human Serpin E1/PAI‑1 Antibody. Recombinant Human u-Plasminogen Activator (uPA)/Urokinase (0.1 µg/mL, Catalog # 1310-SE) activity is measured in the presence of Recombinant Human Serpin E1 (1.35 µg/mL, Catalog # 1786-PI) that has been preincubated with increasing concentrations of Goat Anti-Human Serpin E1/PAI-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1786). The ND50 is typically 10 µg/mL.
Reconstitution Calculator
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Serpin E1/PAI-1
As a member of the Serpin superfamily of serine protease inhibitors, Serpin E1/PAI-1 is the principal inhibitor of urokinase-type plasminogen activator (uPA) and tissue-type PA (1, 2). As important regulators of extracellular matrix remodeling, uPA and PAI-1 play a major role in many processes such as angiogenesis, tumor invasion and obesity (2-4). For example, uPA and PAI-1 are the only tumor prognostic factors validated at the highest level of evidence with regard to their clinical utility in breast cancer (5). The human PAI-1 is initially synthesized as 402 amino acid precursor with a N-terminal signal peptide (6, 7). PAI-1 may exist in one of two possible conformations, designated as active or latent (8). The purified recombinant human (rh) PAI-1 is active against rhuPA. The heterogeneity at the N-terminus of the purified rhPAI-1 has been observed before for both the recombinant and native proteins (9).
- Silverman, G.A. et al. (2001) J. Biol. Chem. 276:33293.
- Stefansson, S. et al. (2003) Curr. Pharm. Des. 9:1545.
- Duffy, M.J. (2002) Clin. Chem. 48:1194.
- Juhan-Vague, I. et al. (2003) J. Thromb. Haemost. 1:1575.
- Harbeck, N. et al. (2002) Clin. Breast Cancer 3:196.
- Pannekoek, H. et al. (1986) EMBO J. 5:2539.
- Ginsburg, D. et al. (1986) J. Clin. Invest. 78:1673.
- Wang, Z. et al. (1996) Biochemistry 35:16443.
- Stromqvist, M. et al. (1994) Protein Expr. Purif. 5:309.
Product Datasheets
Citations for Human Serpin E1/PAI-1 Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
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Citations: Showing 1 - 9
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Schwann Cell Stimulation of Pancreatic Cancer Cells: A Proteomic Analysis
Authors: Aysha Ferdoushi, Xiang Li, Nathan Griffin, Sam Faulkner, M. Fairuz B. Jamaluddin, Fangfang Gao et al.
Frontiers in Oncology
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Hypoxia Promotes a Mixed Inflammatory-Fibrotic Macrophages Phenotype in Active Sarcoidosis
Authors: Jeny F, Bernaudin JF, Valeyre D Et al.
Frontiers in immunology
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An integrated genomic approach identifies persistent tumor suppressive effects of transforming growth factor-beta in human breast cancer
Authors: Misako Sato, Mitsutaka Kadota, Binwu Tang, Howard H Yang, Yu-an Yang, Mengge Shan et al.
Breast Cancer Research
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PAI-1 derived from cancer-associated fibroblasts in esophageal squamous cell carcinoma promotes the invasion of cancer cells and the migration of macrophages
Authors: Hiroki Sakamoto, Yu-ichiro Koma, Nobuhide Higashino, Takayuki Kodama, Kohei Tanigawa, Masaki Shimizu et al.
Laboratory Investigation
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Heme stimulates platelet mitochondrial oxidant production to induce targeted granule secretion
Authors: GK Annarapu, D Nolfi-Done, M Reynolds, Y Wang, L Kohut, B Zuckerbrau, S Shiva
Redox Biology, 2021-12-05;48(0):102205.
Species: Human
Sample Types: Cell Culture Supernates
Applications: Dot Blot -
IL35 predicts prognosis in gastric cancer and is associated with angiogenesis by altering TIMP1, PAI1, and IGFBP1
Authors: X Li, N Niu, J Sun, Y Mou, X He, L Mei
FEBS Open Bio, 2020-11-09;0(0):.
Species: Human
Sample Types: Whole Cells
Applications: Neutralization -
Plasminogen Activator Inhibitor-1 Promotes the Recruitment and Polarization of Macrophages in Cancer
Authors: MH Kubala, V Punj, VR Placencio-, H Fang, GE Fernandez, R Sposto, YA DeClerck
Cell Rep, 2018-11-20;25(8):2177-2191.e7.
Species: Human
Sample Types: Cell Lysates
Applications: Western Blot -
An essential role for Wnt/?-catenin signaling in mediating hypertensive heart disease
Authors: Y Zhao, C Wang, C Wang, X Hong, J Miao, Y Liao, L Zhou, Y Liu
Sci Rep, 2018-06-12;8(1):8996.
Species: Rat
Sample Types: Tissue Homogenates
Applications: Western Blot -
Overexpression of protease nexin-1 mRNA and protein in oral squamous cell carcinomas.
Authors: Gao S, Krogdahl A, Sorensen J, Kousted T, Dabelsteen E, Andreasen P
Oral Oncol, 2007-04-30;44(3):309-13.
Species: Human
Sample Types: Whole Tissue
Applications: IHC-Fr
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