Product Pathways - PathScan ELISA
PathScan® Total Cox2 Sandwich ELISA Kit #7291
|7291S||1 Kit (96 assays)||---||In Stock||---|
|7291||carrier free and custom formulation / quantity||email request|
When ordering five or more kits, please contact us for processing time and pricing at email@example.com.
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|Kit Includes||Volume||Solution Color|
|Cox2 Mouse Ab Coated Microwells||96 tests|
|Cox2 Rabbit Detection Ab||11 ml||Green|
|Anti-Rabbit IgG, HRP-linked Antibody||11 ml||Red|
|TMB Substrate #7004||11 ml||Colorless|
|STOP Solution #7002||11 ml||Colorless|
|Sealing Tape||2 sheets|
|Cell Lysis Buffer (10X) #9803||15 ml||Yellowish|
|ELISA Sample Diluent||25 ml||Blue|
|ELISA Wash Buffer (20X)||25 ml||Colorless|
Note: 12 8-well modules – Each module is designed to break apart for 8 tests.
Storage: Kit should be stored at 4°C with the exception of Cell Lysis Buffer, which is stored at –20°C (packaged separately).
The PathScan® Total Cox2 Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of Cox2. A Cox2 Mouse Antibody has been coated onto the microwells. After incubation with cell lysates, Cox2 protein is captured by the coated antibody. Following extensive washing, a Cox2 Rabbit Detection Antibody is added to detect the captured Cox2 protein. Anti-rabbit IgG, HRP-linked Antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of the absorbance for the developed color is proportional to the quantity of Cox2.
Antibodies in kit are custom formulations specific to kit.
Specificity / Sensitivity
PathScan® Total Cox2 Sandwich ELISA Kit detects endogenous levels of total Cox2 protein. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.
Figure 2. The relationship between the protein concentration of lysates from CCD-1070Sk cells, serum starved or hIL-1β-treated, and the absorbance at 450 nm is shown. CCD-1070Sk cells (80-90% confluent) were serum starved or treated with hIL-1β #8900 (5 ng/ml, 16 hr) and then lysed.
ELISA - Western correlation
Figure 1. Treatment of CCD-1070Sk cells with IL-1β stimulates expression of Cox2 as detected by the PathScan® Total Cox2 Sandwich ELISA Kit. CCD-1070Sk cells (80-90% confluent) were serum starved or treated with hIL-1β #8900 (5 ng/ml, 16 hr). The absorbance readings at 450 nm are shown in the top figure, while the corresponding western blot using Cox2 Antibody #4842 is shown in the bottom figure.
Cyclooxygenase1 (Cox1) and cyclooxygenase2 (Cox2), family members with 60% homology in humans, catalyze prostaglandin production from arachidonic acid (1,2). While Cox1 expression is constitutive in most tissues, Cox2 expression is induced by lipopolysaccharide (LPS) and peptidoglycan (PGN) (3). PGN activates Ras, leading to phosphorylation of Raf at Ser338 and Erk1/2 at Tyr204. The activation of MAP kinase signaling results in subsequent activation of IKKα/β, phosphorylation of IκBα at Ser32/36, and NF-κB activation. Finally, activation of the transcription factor NF-κB is responsible for the induction of Cox2 expression (4). Investigators have shown that LPS and PGN induce the clinical manifestations of arthritis and bacterial infections, such as inflammation, fever, and septic shock (5). Research studies have indicated that Cox1 and Cox2 may also play a role in the neuropathology of Alzheimer's disease by potentiating γ-secretase activity and β-amyloid generation (6).
- Xie, W.L. et al. (1991) Proc Natl Acad Sci USA 88, 2692-6.
- Vane, J.R. et al. (1998) Annu Rev Pharmacol Toxicol 38, 97-120.
- O'Neill, G.P. et al. (1994) Mol Pharmacol 45, 245-54.
- Chen, B.C. et al. (2004) J Biol Chem 279, 20889-97.
- Wang, Q. et al. (2001) Infect Immun 69, 2270-6.
- Qin, W. et al. (2003) J Biol Chem 278, 50970-7.
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For Research Use Only. Not For Use In Diagnostic Procedures.
PathScan® is a trademark of Cell Signaling Technology, Inc.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.