TREM-1 (Triggering Receptor Expressed on Myeloid cells) is a type I transmembrane protein having a single Ig-like domain. It associates with the adapter protein, DAP12, to deliver an activating signal. Several other TREM family members have been reported that are structurally similar but share less than 30% amino acid identity. TREM-1 is expressed on blood neutrophils and a subset of monocytes, and expression is up-regulated by bacterial LPS. Engagement of TREM-1 with a monoclonal antibody leads to expression of IL-8, MCP-1, and TNF-alpha suggesting that this receptor plays an important role in inflammatory responses. TREM-1 is expressed at high levels on neutrophils of patients with microbial sepsis and in mice with LPS-induced shock. Blockade of TREM-1 with a TREM-1/Fc fusion protein protected mice against LPS-induced shock.
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Antibody Source
Product Specifications
Immunogen
Ala21-Ser202
Accession # Q9JKE2
Specificity
Clonality
Host
Isotype
Endotoxin Level
Scientific Data Images for Mouse TREM‑1 Antibody
Detection of TREM‑1 in Mouse Splenocytes by Flow Cytometry.
Mouse splenocytes were stained with Rat Anti-Mouse Gr-1/Ly-6G Alexa Fluor® 405-conjugated Monoclonal Antibody (Catalog # FAB1037V) and either (A) Rat Anti-Mouse TREM-1 Monoclonal Antibody (Catalog # MAB1187) or (B) Rat IgG2AIsotype Control (Catalog # MAB006) followed by Phycoerythrin-conjugated Anti-Rat IgG Secondary Antibody (Catalog # F0105B).
TREM‑1 in Mouse Splenocytes.
TREM-1 was detected in immersion fixed mouse splenocytes treated with LPS using Rat Anti-Mouse TREM-1 Monoclonal Antibody (Catalog # MAB1187) at 15 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rat IgG Secondary Antibody (red; Catalog # NL013) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Non-adherent Cells.
Detection of TREM-1 by Immunocytochemistry/ Immunofluorescence
ExNef potentiate inflammatory signalling cascade via re-localization of TLR4 & TREM-1 to lipid rafts.A–The effect of exNef (0.4 ng/ml, 48h) on abundance of lipid rafts & re-localization of TLR4 & TREM-1 to the plasma membrane in RAW264.7 macrophages. Left column, CTB staining; second column, anti-TREM-1 staining; third column anti-TLR4 staining; fourth column–merge TREM-1/rafts, right column–merge TLR4/rafts. Scale bars 10 μm. Image collected & cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/31344124), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of TREM-1 by Immunocytochemistry/ Immunofluorescence
TREM-1 activation induced HIF-1 alpha accumulation and translocation to the nucleus in macrophages. Macrophages were incubated with anti-TREM-1 mAb (10 μg/mL) in a normoxia condition. (A) Six hours later, Hif‐1 alpha gene levels were measured using qPCR, n=4-6. (B-C) Twenty-four hours later, the protein of HIF‐1 alpha was performed by western blot with GAPDH as a loading control, n=3. (D) Macrophages were cultured on anti-TREM-1 for 24 h and then subjected to immunofluorescence examination to analyze the HIF-1 alpha accumulation and translocation to the nucleus (scale bar, 50 μm). (E) Average fluorescent intensity was calculated by HIF-1 alpha + fluorescence intensity (IntDen)/area of the region (Area) using ImageJ, n=6. (F-G) 1×106 cells/well were premixed with PBS control or PX-478 (25 μM) for 30 min, then plated into 12-well plates with agonist anti-TREM-1 mAb (10 μg/mL). HK2 protein levels were measured after an additional incubation for 24 h, n=3. n represents experiments performed on different macrophages from separate mice. Data are expressed as the mean ± SD. Student's t-test (two-tailed, unpaired) was used to compare Mab1187 and Control in (A-E): * P < 0.05, ** P < 0.01, and *** P < 0.001. One-way ANOVA adjusted by Tukey's multiple comparison test was used in G: *** P < 0.001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36594089), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of TREM-1 by Immunocytochemistry/ Immunofluorescence
TREM-1 activation induced HIF-1 alpha accumulation and translocation to the nucleus in macrophages. Macrophages were incubated with anti-TREM-1 mAb (10 μg/mL) in a normoxia condition. (A) Six hours later, Hif‐1 alpha gene levels were measured using qPCR, n=4-6. (B-C) Twenty-four hours later, the protein of HIF‐1 alpha was performed by western blot with GAPDH as a loading control, n=3. (D) Macrophages were cultured on anti-TREM-1 for 24 h and then subjected to immunofluorescence examination to analyze the HIF-1 alpha accumulation and translocation to the nucleus (scale bar, 50 μm). (E) Average fluorescent intensity was calculated by HIF-1 alpha + fluorescence intensity (IntDen)/area of the region (Area) using ImageJ, n=6. (F-G) 1×106 cells/well were premixed with PBS control or PX-478 (25 μM) for 30 min, then plated into 12-well plates with agonist anti-TREM-1 mAb (10 μg/mL). HK2 protein levels were measured after an additional incubation for 24 h, n=3. n represents experiments performed on different macrophages from separate mice. Data are expressed as the mean ± SD. Student's t-test (two-tailed, unpaired) was used to compare Mab1187 and Control in (A-E): * P < 0.05, ** P < 0.01, and *** P < 0.001. One-way ANOVA adjusted by Tukey's multiple comparison test was used in G: *** P < 0.001. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/36594089), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Mouse TREM‑1 Antibody
Agonist Activity
The ED50 for this effect is typically 0.4-3 μg/mL.
CyTOF-ready
Flow Cytometry
Sample: Mouse splenocytes
Immunocytochemistry
Sample: Immersion fixed mouse splenocytes treated with LPS
Western Blot
Sample: Recombinant Mouse TREM‑1 Fc Chimera (Catalog # 1187-TR)
Reviewed Applications
Read 1 review rated 4 using MAB1187 in the following applications:
Flow Cytometry Panel Builder
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Advanced Features
- Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
- Spillover Popups - Visualize the spectra of individual fluorochromes
- Antigen Density Selector - Match fluorochrome brightness with antigen density
Formulation, Preparation, and Storage
Purification
Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
Formulation
Shipping
Stability & 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.
Calculators
Background: TREM-1
References
- Bouchon, A. (2000) J. Immunol. 164:4991.
- Bouchon, A. (2001) Nature 410:1103.
- Nathan, C. and A. Ding (2001) Nature Med. 7:530.
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Additional TREM-1 Products
Product Documents for Mouse TREM‑1 Antibody
Certificate of Analysis
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Product Specific Notices for Mouse TREM‑1 Antibody
For research use only
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Application: Flow CytometrySample Tested: Spleen tissueSpecies: MouseVerified Customer | Posted 08/28/2022Works well with flow!
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- 7-Amino Actinomycin D (7-AAD) Cell Viability Flow Cytometry Protocol
- Appropriate Fixation of IHC/ICC Samples
- Cellular Response to Hypoxia Protocols
- Detection & Visualization of Antibody Binding
- Extracellular Membrane Flow Cytometry Protocol
- Flow Cytometry Protocol for Cell Surface Markers
- Flow Cytometry Protocol for Staining Membrane Associated Proteins
- Flow Cytometry Staining Protocols
- Flow Cytometry Troubleshooting Guide
- ICC Cell Smear Protocol for Suspension Cells
- ICC Immunocytochemistry Protocol Videos
- ICC for Adherent Cells
- Immunocytochemistry (ICC) Protocol
- Immunocytochemistry Troubleshooting
- Immunofluorescence of Organoids Embedded in Cultrex Basement Membrane Extract
- Immunohistochemistry (IHC) and Immunocytochemistry (ICC) Protocols
- Intracellular Flow Cytometry Protocol Using Alcohol (Methanol)
- Intracellular Flow Cytometry Protocol Using Detergents
- Intracellular Nuclear Staining Flow Cytometry Protocol Using Detergents
- Intracellular Staining Flow Cytometry Protocol Using Alcohol Permeabilization
- Intracellular Staining Flow Cytometry Protocol Using Detergents to Permeabilize Cells
- Preparing Samples for IHC/ICC Experiments
- Preventing Non-Specific Staining (Non-Specific Binding)
- Primary Antibody Selection & Optimization
- Propidium Iodide Cell Viability Flow Cytometry Protocol
- Protocol for VisUCyte™ HRP Polymer Detection Reagent
- Protocol for the Characterization of Human Th22 Cells
- Protocol for the Characterization of Human Th9 Cells
- Protocol for the Fluorescent ICC Staining of Cell Smears - Graphic
- Protocol for the Fluorescent ICC Staining of Cultured Cells on Coverslips - Graphic
- Protocol for the Preparation and Fluorescent ICC Staining of Cells on Coverslips
- Protocol for the Preparation and Fluorescent ICC Staining of Non-adherent Cells
- Protocol for the Preparation and Fluorescent ICC Staining of Stem Cells on Coverslips
- Protocol for the Preparation of a Cell Smear for Non-adherent Cell ICC - Graphic
- Protocol: Annexin V and PI Staining by Flow Cytometry
- Protocol: Annexin V and PI Staining for Apoptosis by Flow Cytometry
- R&D Systems Quality Control Western Blot Protocol
- TUNEL and Active Caspase-3 Detection by IHC/ICC Protocol
- The Importance of IHC/ICC Controls
- Troubleshooting Guide: Fluorokine Flow Cytometry Kits
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars