Abcam, ab45523, Human CD14 ELISA Kit

Size: 1 x 96Tests / 2 x 96Tests
Human CD14 ELISA Kit is a Sandwich (quantitative) ELISA for the measurement of Human CD14 in Human in Biofluids, Cell Culture Media, Cell/Tissue Extracts samples.
Key facts
Detection method:Colorimetric,
Sample types:Plasma, Cell culture supernatant, Milk, Serum, Cell Lysate,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:< 6 ng/mL,
Range:6.89 - 220 ng/mL,
Assay time:3h 45m,
Assay Platform:Microplate

Product details:
Abcam's CD14 Human
in vitro
ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of CD14 in Human serum, plasma, buffered solutions or cell culture media.
A monoclonal antibody specific for CD14 has been coated onto the wells of the microtiter strips provided. Samples, including standards of known CD14 concentrations and unknowns are pipetted into these wells. During the first incubation, the standards or samples and a biotinylated monoclonal antibody specific for CD14 are simultaneously incubated. After washing, the enzyme Streptavidin-HRP, that binds the biotinylated antibody is added, incubated and washed. A TMB substrate solution is added which acts on the bound enzyme to induce a colored reaction product. The intensity of this colored product is directly proportional to the concentration of CD14 present in the samples.
This kit will recognize both endogenous and recombinant Human CD14.
Get higher sensitivity in only 90 minutes with Human CD14 ELISA Kit (
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Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C, Storage information-+4°C

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
CD14 also known as cluster of differentiation 14 is a glycoprotein with a molecular mass of approximately 55 kDa. This protein is expressed mainly on the surface of macrophages monocytes and to a lesser extent on neutrophils. CD14 exists in two forms: membrane-bound (mCD14) and soluble (sCD14). It functions as a co-receptor along with TLR4 (Toll-like receptor 4) and MD-2 for the detection of bacterial lipopolysaccharide (LPS) which is an important component of the outer membrane of Gram-negative bacteria.
Biological function summary
This glycoprotein plays a significant role in the innate immune system by recognizing pathogen-associated molecular patterns (PAMPs). It is part of a receptor complex where CD14 acts alongside LPS binding protein (LPS-R) TLR4 and MD-2 to facilitate pro-inflammatory signaling in response to microbial invasion. By binding to LPS CD14 initiates and amplifies the immune response leading to the production of cytokines and the recruitment of other immune cells to the site of infection.
Pathways
CD14 interacts with the toll-like receptor signaling pathway notably involving TLR4. Upon LPS detection CD14 assists in the activation of TLR4 triggering downstream signaling cascades such as NF-κB and MAPK pathways. These pathways result in the transcription of inflammatory cytokines and are essential for the host defense mechanism. The protein complex involving CD14 further interacts with adaptor proteins like MyD88 and TRIF facilitating signal propagation and the immune system's ability to respond to pathogens.
Researchers have linked CD14 to sepsis and atherosclerosis. High levels of soluble CD14 (sCD14) are often observed in patients with sepsis indicating its participation in excessive systemic inflammation. In atherosclerosis CD14's role in recognizing LPS contributes to chronic inflammation and the development of plaques in arteries. Through these diseases CD14 connects with TLR4 emphasizing its impact on inflammatory responses and its potential as a therapeutic target.