TCC, Human, ELISA kit

Katalog-Nummer HK328-01

Size : 1x96det.

Marke : Hycult Biotech

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TCC, Human, ELISA kit-734

TCC ELISA, human, kit

The human terminal complement complex (TCC) ELISA kit is to be used for the in vitro quantitative determination of human TCC in plasma, urine, cerebrospinal fluid, joint fluid and cell culture supernatant samples.

Introduction to Terminal Complement Complex (TCC)

The Terminal Complement Complex (TCC), also recognized as sC5b-9, serves as a pivotal biomarker in assessing the immune response within the human body. This complex, integral to research endeavors, is central to the body’s innate defense mechanism.

Activation Pathways and TCC ELISA Significance

Central to the complement system are three distinct activation pathways, all converging at the formation of a C5 convertase. It is the cleavage of C5 by these convertases that marks the commencement of the terminal or lytic pathway, a crucial stage in immune response. TCC ELISA emerges as a critical tool in this context, offering precise measurement and monitoring of these activities.

The Terminal Pathway Mechanism

Contrasting the activation pathways that necessitate enzymatic cleavage for activation, the terminal pathway operates predominantly through conformational changes induced upon binding. This intricate mechanism initiates with the binding of C6, which in turn facilitates the binding of C7, consequently altering the complex’s conformation. Subsequent binding of C8 and the association of a variable number of C9 molecules with the C5b678 complex results in the formation of the Terminal Complement Complex (TCC) or Membrane Attack Complex (MAC).

The Role of Neoantigens in TCC

The formation of TCC in its membrane-bound form is a harbinger for cell lysis or the activation of various cellular metabolic pathways. These pathways are pivotal as they culminate in the synthesis and subsequent release of inflammatory mediators. A distinct feature of the TCC is the inclusion of neoantigens, not found in its separate native parts. These neoantigens appear in both the membrane-bound (MAC) and fluid-phase (SC5b-9) forms of TCC. This adds complexity and importance to TCC’s role in the immune response.

TCC ELISA in Research

TCC ELISA is crucial due to its detectability in normal human plasma, where it’s usually under 1 AU/ml. It significantly increases in patients with active immune responses. This measurable factor proves TCC ELISA’s value in research. It enables detailed insights and continuous monitoring of the immune system’s activity.

How to analyze complement

For accurate complement analysis, it is important that not only the correct technique is used but also that pre-analytical sample handling is performed in an appropriate manner to avoid erroneous results.

Application
The human terminal complement complex (TCC) ELISA kit is to be used for the in vitro quantitative determination of human TCC in plasma, urine, cerebrospinal fluid, joint fluid and cell culture supernatant samples.

Principle
The human TCC ELISA is a ready-to-use solid-phase enzyme-linked immunosorbent assay based on the sandwich principle with a working time of 3½ hours. The efficient format of 2 plates with twelve disposable 8-well strips allows free choice of batch size for the assay. Samples and standards are captured by a solid bound specific antibody. Biotinylated tracer antibody will bind to captured TCC. Streptavidin-peroxidase conjugate will bind to the biotinylated tracer antibody. Streptavidin-peroxidase conjugate will react with the substrate, tetramethylbenzidine (TMB). The enzyme reaction is stopped by the addition of oxalic acid. The absorbance at 450 nm is measured with a spectrophotometer. A standard curve is obtained by plotting the absorbance (linear) versus the corresponding concentrations of the TCC standards (log). The TCC concentration of samples, which are run concurrently with the standards, can be determined from the standard curve.

Linearity
The linearity of the assay was determined by serially diluting a sample containing 250 mAU/ml human TCC. The diluted samples were measured in the assay. The line obtained a slope of 0.967 and a correlation coefficient of 0.999.

Recovery
Normal human blood samples (plasma), containing baseline levels of human TCC, were spiked with human TCC in concentrations of 2500 and 250 mAU/ml. Samples with and without TCC were incubated for 1 hour at 4° C. Samples were measured by ELISA. Values for TCC ranged between 153% and 128% (mean 140%).

Product type
Assays
Amount
1 x 96 det., 2 x 96 det.
Standard range
8.2 to 2000 mAU/ml
Detection level
8.2 mAU/ml
Working volume
100 µl/well
Species
Human
Cross reactivity
Cynomolgus monkey – Yes, Horse – No, Mouse – No, Pig – Yes, Rabbit – Yes, Rat – No
Storage and stability
Product should be stored at 4 °C. Under recommended storage conditions, product is stable for at least six months.
Precautions
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and Federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result with the use of or derivation of this product.
Disease
Infectious diseases, Nephrology
Safety Data Sheet Assay Manual
HK328
402 kb

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