Description
Human IL-1B ELISA Kit
The Human IL-1B (Interleukin-1 Beta) ELISA Kit is a cutting-edge tool for the precise measurement of IL-1B levels in human samples such as serum, plasma, and cell culture supernatants. With its exceptional sensitivity and specificity, this kit delivers accurate and consistent results, making it an invaluable tool for various research applications.IL-1B is a pro-inflammatory cytokine that plays a crucial role in the immune response, regulating inflammation and immune cell activation. Dysregulation of IL-1B has been implicated in various inflammatory and autoimmune diseases, highlighting its significance as a potential biomarker for disease diagnosis and monitoring treatment efficacy.
By using the Human IL-1B ELISA Kit, researchers can gain valuable insights into the role of IL-1B in disease pathogenesis, paving the way for the development of targeted therapies and personalized medicine approaches. Stay ahead in the field of immunology and inflammatory research with this advanced ELISA kit from Assay Genie.
| Product Name: | Human IL-1B ELISA Kit |
| SKU: | HUEB0197 |
| Size: | 96T |
| Target: | Human IL-1B |
| Synonyms: | Catabolin, IL-1 beta, IL1F2 |
| Assay Type: | Sandwich |
| Detection Method: | ELISA |
| Reactivity: | Human |
| Detection Range: | 15.6-1000pg/ml |
| Sensitivity: | 7.8pg/mL |
| Intra CV: | 5.7% | ||||||||||||||||||||
| Inter CV: | 8.6% | ||||||||||||||||||||
| Linearity: |
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| Recovery: |
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| Function: | Potent proinflammatory cytokine. Initially discovered as the major endogenous pyrogen, induces prostaglandin synthesis, neutrophil influx and activation, T-cell activation and cytokine production, B-cell activation and antibody production, and fibroblast proliferation and collagen production. Promotes Th17 differentiation of T-cells. |
| Uniprot: | P01584 |
| Sample Type: | Serum, plasma, tissue homogenates, cell culture supernates and other biological fluids |
| Specificity: | Natural and recombinant human Interleukin-1 beta |
| Sub Unit: | Monomer. In its precursor form, weakly interacts with full-length MEFV; the mature cytokine does not interact at all (PubMed:17431422). |
| Research Area: | Neurosciences |
| Subcellular Location: | Cytoplasm Cytosol Lysosome Secreted Exosome Secreted The precursor is cytosolic. In response to inflammasome-activating signals, such as ATP for NLRP3 inflammasome or bacterial flagellin for NLRC4 inflammasome, cleaved and secreted. IL1B lacks any known signal sequence and the pathway(s) of its secretion is(are) not yet fully understood (PubMed:24201029). On the basis of experimental results, several unconventional secretion mechanisms have been proposed. 1. Secretion via secretory lysosomes: a fraction of CASP1 and IL1B precursor may be incorporated, by a yet undefined mechanism, into secretory lysosomes that undergo Ca(2+)-dependent exocytosis with release of mature IL1B (PubMed:15192144). 2. Secretory autophagy: IL1B-containing autophagosomes may fuse with endosomes or multivesicular bodies (MVBs) and then merge with the plasma membrane releasing soluble IL1B or IL1B-containing exosomes (PubMed:24201029). However, autophagy impacts IL1B production at several levels and its role in secretion is still controversial. 3. Secretion via exosomes: ATP-activation of P2RX7 leads to the formation of MVBs containing exosomes with entrapped IL1B, CASP1 and other inflammasome components. These MVBs undergo exocytosis with the release of exosomes. The release of soluble IL1B occurs after the lysis of exosome membranes (By similarity). 4. Secretion by microvesicle shedding: activation of the ATP receptor P2RX7 may induce an immediate shedding of membrane-derived microvesicles containing IL1B and possibly inflammasome components. The cytokine is then released in the extracellular compartment after microvesicle lysis (PubMed:11728343). 5. Release by translocation through permeabilized plasma membrane. This may occur in cells undergoing pyroptosis due to sustained activation of the inflammasome (By similarity). These mechanisms may not be not mutually exclusive. |
| Storage: | Please see kit components below for exact storage details |
| Note: | For research use only |
| UniProt Protein Function: | IL1B: Produced by activated macrophages, IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells. Monomer. Belongs to the IL-1 family. |
| UniProt Protein Details: | Protein type:Cytokine Chromosomal Location of Human Ortholog: 2q14 Cellular Component: extracellular space; extracellular region; cytosol; secretory granule Molecular Function:protein domain specific binding; interleukin-1 receptor binding; cytokine activity Biological Process: positive regulation of granulocyte macrophage colony-stimulating factor production; negative regulation of MAP kinase activity; positive regulation of nitric oxide biosynthetic process; activation of MAPK activity; positive regulation of transcription, DNA-dependent; positive regulation of interleukin-2 biosynthetic process; germ cell programmed cell death; negative regulation of insulin receptor signaling pathway; positive regulation of lipid catabolic process; positive regulation of NF-kappaB import into nucleus; fever; positive regulation of membrane protein ectodomain proteolysis; response to carbohydrate stimulus; activation of NF-kappaB transcription factor; cell-cell signaling; positive regulation of phagocytosis; positive regulation of T cell mediated immunity; positive regulation of T cell proliferation; neutrophil chemotaxis; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of heterotypic cell-cell adhesion; positive regulation of mitosis; smooth muscle adaptation; interleukin-1 beta production; positive regulation of interleukin-6 production; positive regulation of angiogenesis; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; negative regulation of lipid metabolic process; sequestering of triacylglycerol; positive regulation of histone phosphorylation; apoptosis; positive regulation of interleukin-6 biosynthetic process; positive regulation of JNK cascade; signal transduction; positive regulation of vascular endothelial growth factor receptor signaling pathway; positive regulation of protein export from nucleus; positive regulation of interleukin-8 production; negative regulation of cell proliferation; negative regulation of lipid catabolic process; hyaluronan biosynthetic process; protein kinase B signaling cascade; lipopolysaccharide-mediated signaling pathway; inflammatory response; regulation of I-kappaB kinase/NF-kappaB cascade; cytokine and chemokine mediated signaling pathway; MAPKKK cascade; response to ATP; positive regulation of interferon-gamma production; positive regulation of chemokine biosynthetic process; positive regulation of prostaglandin secretion; positive regulation of fever; positive regulation of histone acetylation; immune response; positive regulation of protein amino acid phosphorylation; regulation of insulin secretion; embryo implantation Disease: Gastric Cancer, Hereditary Diffuse |
| NCBI Summary: | The protein encoded by this gene is a member of the interleukin 1 cytokine family. This cytokine is produced by activated macrophages as a proprotein, which is proteolytically processed to its active form by caspase 1 (CASP1/ICE). This cytokine is an important mediator of the inflammatory response, and is involved in a variety of cellular activities, including cell proliferation, differentiation, and apoptosis. The induction of cyclooxygenase-2 (PTGS2/COX2) by this cytokine in the central nervous system (CNS) is found to contribute to inflammatory pain hypersensitivity. This gene and eight other interleukin 1 family genes form a cytokine gene cluster on chromosome 2. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P01584 |
| NCBI GenInfo Identifier: | 62906858 |
| NCBI Gene ID: | 3553 |
| NCBI Accession: | P01584.2 |
| UniProt Secondary Accession: | P01584,Q53X59, Q53XX2, Q7M4S7, Q7RU01, Q96HE5, Q9UCT6 |
| UniProt Related Accession: | P01584 |
| Molecular Weight: | 30,748 Da |
| NCBI Full Name: | Interleukin-1 beta |
| NCBI Synonym Full Names: | interleukin 1, beta |
| NCBI Official Symbol: | IL1B |
| NCBI Official Synonym Symbols: | IL-1; IL1F2; IL1-BETA |
| NCBI Protein Information: | interleukin-1 beta; IL-1 beta; catabolin; preinterleukin 1 beta; pro-interleukin-1-beta |
| UniProt Protein Name: | Interleukin-1 beta |
| UniProt Synonym Protein Names: | Catabolin |
| Protein Family: | Interleukin |
| UniProt Gene Name: | IL1B |
| UniProt Entry Name: | IL1B_HUMAN |
| Component | Quantity (96 Assays) | Storage |
| ELISA Microplate (Dismountable) | 8×12 strips | -20°C |
| Lyophilized Standard | 2 | -20°C |
| Sample Diluent | 20ml | -20°C |
| Assay Diluent A | 10mL | -20°C |
| Assay Diluent B | 10mL | -20°C |
| Detection Reagent A | 120µL | -20°C |
| Detection Reagent B | 120µL | -20°C |
| Wash Buffer | 30mL | 4°C |
| Substrate | 10mL | 4°C |
| Stop Solution | 10mL | 4°C |
| Plate Sealer | 5 | - |
Other materials and equipment required:
- Microplate reader with 450 nm wavelength filter
- Multichannel Pipette, Pipette, microcentrifuge tubes and disposable pipette tips
- Incubator
- Deionized or distilled water
- Absorbent paper
- Buffer resevoir
*Note: The below protocol is a sample protocol. Protocols are specific to each batch/lot. For the correct instructions please follow the protocol included in your kit.
Allow all reagents to reach room temperature (Please do not dissolve the reagents at 37°C directly). All the reagents should be mixed thoroughly by gently swirling before pipetting. Avoid foaming. Keep appropriate numbers of strips for 1 experiment and remove extra strips from microtiter plate. Removed strips should be resealed and stored at -20°C until the kits expiry date. Prepare all reagents, working standards and samples as directed in the previous sections. Please predict the concentration before assaying. If values for these are not within the range of the standard curve, users must determine the optimal sample dilutions for their experiments. We recommend running all samples in duplicate.
| Step | |
| 1. | Add Sample: Add 100µL of Standard, Blank, or Sample per well. The blank well is added with Sample diluent. Solutions are added to the bottom of micro ELISA plate well, avoid inside wall touching and foaming as possible. Mix it gently. Cover the plate with sealer we provided. Incubate for 120 minutes at 37°C. |
| 2. | Remove the liquid from each well, don't wash. Add 100µL of Detection Reagent A working solution to each well. Cover with the Plate sealer. Gently tap the plate to ensure thorough mixing. Incubate for 1 hour at 37°C. Note: if Detection Reagent A appears cloudy warm to room temperature until solution is uniform. |
| 3. | Aspirate each well and wash, repeating the process three times. Wash by filling each well with Wash Buffer (approximately 400µL) (a squirt bottle, multi-channel pipette,manifold dispenser or automated washer are needed). Complete removal of liquid at each step is essential. After the last wash, completely remove remaining Wash Buffer by aspirating or decanting. Invert the plate and pat it against thick clean absorbent paper. |
| 4. | Add 100µL of Detection Reagent B working solution to each well. Cover with the Plate sealer. Incubate for 60 minutes at 37°C. |
| 5. | Repeat the wash process for five times as conducted in step 3. |
| 6. | Add 90µL of Substrate Solution to each well. Cover with a new Plate sealer and incubate for 10-20 minutes at 37°C. Protect the plate from light. The reaction time can be shortened or extended according to the actual color change, but this should not exceed more than 30 minutes. When apparent gradient appears in standard wells, user should terminatethe reaction. |
| 7. | Add 50µL of Stop Solution to each well. If color change does not appear uniform, gently tap the plate to ensure thorough mixing. |
| 8. | Determine the optical density (OD value) of each well at once, using a micro-plate reader set to 450 nm. User should open the micro-plate reader in advance, preheat the instrument, and set the testing parameters. |
| 9. | After experiment, store all reagents according to the specified storage temperature respectively until their expiry. |
When carrying out an ELISA assay it is important to prepare your samples in order to achieve the best possible results. Below we have a list of procedures for the preparation of samples for different sample types.
| Sample Type | Protocol |
| Serum | If using serum separator tubes, allow samples to clot for 30 minutes at room temperature. Centrifuge for 10 minutes at 1,000x g. Collect the serum fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. If serum separator tubes are not being used, allow samples to clot overnight at 2-8°C. Centrifuge for 10 minutes at 1,000x g. Remove serum and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. |
| Plasma | Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge samples at 4°C for 15 mins at 1000 × g within 30 mins of collection. Collect the plasma fraction and assay promptly or aliquot and store the samples at -80°C. Avoid multiple freeze-thaw cycles. Note: Over haemolysed samples are not suitable for use with this kit. |
| Urine & Cerebrospinal Fluid | Collect the urine (mid-stream) in a sterile container, centrifuge for 20 mins at 2000-3000 rpm. Remove supernatant and assay immediately. If any precipitation is detected, repeat the centrifugation step. A similar protocol can be used for cerebrospinal fluid. |
| Cell culture supernatant | Collect the cell culture media by pipette, followed by centrifugation at 4°C for 20 mins at 1500 rpm. Collect the clear supernatant and assay immediately. |
| Cell lysates | Solubilize cells in lysis buffer and allow to sit on ice for 30 minutes. Centrifuge tubes at 14,000 x g for 5 minutes to remove insoluble material. Aliquot the supernatant into a new tube and discard the remaining whole cell extract. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Tissue homogenates | The preparation of tissue homogenates will vary depending upon tissue type. Rinse tissue with 1X PBS to remove excess blood & homogenize in 20ml of 1X PBS (including protease inhibitors) and store overnight at ≤ -20°C. Two freeze-thaw cycles are required to break the cell membranes. To further disrupt the cell membranes you can sonicate the samples. Centrifuge homogenates for 5 mins at 5000xg. Remove the supernatant and assay immediately or aliquot and store at -20°C or -80°C. |
| Tissue lysates | Rinse tissue with PBS, cut into 1-2 mm pieces, and homogenize with a tissue homogenizer in PBS. Add an equal volume of RIPA buffer containing protease inhibitors and lyse tissues at room temperature for 30 minutes with gentle agitation. Centrifuge to remove debris. Quantify total protein concentration using a total protein assay. Assay immediately or aliquot and store at ≤ -20 °C. |
| Breast Milk | Collect milk samples and centrifuge at 10,000 x g for 60 min at 4°C. Aliquot the supernatant and assay. For long term use, store samples at -80°C. Minimize freeze/thaw cycles. |
