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PathScan® Inflammation Multi-Target Sandwich ELISA Kit #7276

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    Product Specifications

    REACTIVITY H M
    Application Key:
    • ELISA-ELISA 
    Species Cross-Reactivity Key:
    • H-Human 
    • M-Mouse 

    Product Information

    Product Description

    CST's PathScan® Inflammation Multi-Target Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that combines the reagents necessary to detect endogenous levels of NF-κB p65, phospho-NF-κB p65 (Ser536), phospho-SAPK/JNK (Thr183/Tyr185), phospho-p38 MAPK (Thr180/Tyr182), phospho-Stat3 (Tyr705) and phospho-IκB-α (Ser32). These molecules represent convergence points and key regulatory proteins in signaling pathways controlling the stress and inflammation response. Sixteen tests are provided for each target protein. Specific assay formulations for the indicated target proteins can be found in the datasheets associated with the individual PathScan® Sandwich ELISA Kits**. Briefly, a capture antibody* has been coated onto the microwells. After incubation with cell lysates, the coated antibody captures the target protein. Following extensive washing, a detection antibody* is added to detect the captured target protein. An HRP-linked secondary antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of absorbance for this developed color is proportional to the quantity of bound target protein. *Antibodies in kit are custom formulations specific to kit. **See companion products.

    Protocol

    Specificity / Sensitivity

    PathScan® Inflammation Multi-Target Sandwich ELISA Kit #7276 detects endogenous levels of six proteins: NF-κB p65, phospho-NF-κB p65 (Ser536), phospho-SAPK/JNK (Thr183/Tyr185), phospho-p38 MAPK (Thr180/Tyr182), phospho-Stat3 (Tyr705) and phospho-IκB-α (Ser32). Differential activation of these proteins can be observed over time in response to various cytokine treatments, as shown in Figure 1. The relationship between the protein concentration of the lysate and the absorbance at 450 nm can be found in the datasheets associated with the individual PathScan® Sandwich ELISA kits**. **See companion products. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

    Species Reactivity:

    Human, Mouse

    Background

    Transcription factors of the nuclear factor κB (NF-κB)/Rel family play a pivotal role in inflammation, stress and immune responses. There are five family members in mammals: RelA/p65, c-Rel, RelB, NF-κB1 (p105/p50) and NF-κB2 (p100/p52). These proteins function as dimeric transcription factors. In unstimulated cells, NF-κB/Rel proteins are sequestered in the cytoplasm and inhibited by the IκB proteins. NF-κB-activating agents induce phosphorylation of IκB's, targeting them for degradation and thereby releasing the NF-κB/Rel complexes. Active NF-κB/Rel complexes are further activated by phosphorylation (1-4).
    The stress-activated protein kinase/Jun-amino-terminal kinase SAPK/JNK is activated by a variety of environmental stresses, including UV and gamma radiation, ceramides, inflammatory cytokines and in some instances, by growth factors and GPCR agonists (5-10). As with the other MAPKs, the core-signaling unit is composed of a MAPKKK, typically MEKK1-4, or by a mixed lineage kinase (MLK), which phosphorylates and activates MKK4-7, which then phosphorylates Thr183 and Tyr185 to activate the SAPK/JNK kinase (6). Stress signals are delivered to this cascade by small GTPases of the Rho family (Rac, Rho, cdc42) (7). Both Rac1 and cdc42 mediate the stimulation of MEKKs and MLKs (7). Alternatively, MKK4-7 can be activated by a pathway independent of small GTPases via stimulation of a member of the germinal center kinase (GCK) family (8).
    p38 MAP kinase (MAPK) participates in a signaling cascade controlling the cellular response to pro-inflammatory cytokines and a variety of cellular stresses. MKK3, MKK6 and SEK (MKK4) activate p38 MAP kinase by phosphorylation at Thr180 and Tyr182 (11-14).
    The Stat3 transcription factor is an important signaling molecule for many cytokines and growth factor receptors. Stat3 is activated by phosphorylation at Tyr705, which induces dimerization, nuclear translocation and DNA binding (15,16).
    1. Ghosh, S. and Karin, M. (2002) Cell 109 Suppl, S81-96.
    2. DiDonato, J. et al. (1996) Mol Cell Biol 16, 1295-304.
    3. Sakurai, H. et al. (1999) J Biol Chem 274, 30353-6.
    4. Mattioli, I. et al. (2004) J Immunol 172, 6336-44.
    5. Davis, R.J. (1999) Biochem Soc Symp 64, 1-12.
    6. Ichijo, H. (1999) Oncogene 18, 6087-93.
    7. Kyriakis, J.M. and Avruch, J. (2001) Physiol Rev 81, 807-69.
    8. Kyriakis, J.M. (1999) J Biol Chem 274, 5259-62.
    9. Leppä, S. and Bohmann, D. (1999) Oncogene 18, 6158-62.
    10. Whitmarsh, A.J. and Davis, R.J. (1998) Trends Biochem Sci 23, 481-5.
    11. Raingeaud, J. et al. (1995) J Biol Chem 270, 7420-6.
    12. Raman, M. et al. (2007) Oncogene 26, 3100-12.
    13. Zarubin, T. and Han, J. (2005) Cell Res 15, 11-8.
    14. Roux, P.P. and Blenis, J. (2004) Microbiol Mol Biol Rev 68, 320-44.
    15. O'Shea, J.J. et al. (2002) Cell 109 Suppl, S121-31.
    16. Kaptein, A. et al. (1996) J Biol Chem 271, 5961-4.

    Alternate Names

    Acute-phase response factor; ADMIO; ADMIO1; APRF; c-Jun N-terminal kinase 1; CMCU; CSAID-binding protein; Csaids binding protein; CSBP; CSBP1; CSBP2; CSPB1; cytokine suppressive anti-inflammatory drug binding protein; Cytokine suppressive anti-inflammatory drug-binding protein; DNA-binding protein APRF; EDAID2; EXIP; FLJ20882; HIES; I-kappa-B-alpha; IkappaBalpha; IkB-alpha; IKBA; JNK; JNK-46; JNK1; JNK1 alpha protein kinase; JNK1 beta protein kinase; JNK1A2; JNK21B1/2; JUN N-terminal kinase; MAD-3; MAD3; Major histocompatibility complex enhancer-binding protein MAD3; MAP kinase 14; MAP kinase 8; MAP kinase MXI2; MAP kinase p38 alpha; MAPK 14; MAPK 8; MAPK14; MAPK8; MAX-interacting protein 2; MGC131774; MGC16063; Mitogen-activated protein kinase 14; Mitogen-activated protein kinase 8; mitogen-activated protein kinase 8 isoform JNK1 alpha1; mitogen-activated protein kinase 8 isoform JNK1 beta2; Mitogen-activated protein kinase p38 alpha; MK08; MK14; MXI2; NF-kappa-B inhibitor alpha; NF-kappa-B p65delta3; NF-kappa-B transcription factor p65; NFKB inhibitor alpha; NFkB-p65; NFKB3; NFKBI; NFKBIA; Nuclear factor NF-kappa-B p65 subunit; nuclear factor of kappa light chain gene enhancer in B-cells; Nuclear factor of kappa light polypeptide gene enhancer in B-cells 3; nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha; p38; p38 MAP kinase; p38 mitogen activated protein kinase; p38-alpha; P38A; p38ALPHA; p38alpha Exip; p65; PRKM14; PRKM15; PRKM8; protein kinase JNK1; RELA; RELA proto-oncogene, NF-kB subunit; RELA/p65; RK; SAPK1; SAPK1C; SAPK2A; Signal transducer and activator of transcription 3; signal transducer and activator of transcription 3 (acute-phase response factor); STAT3; Stress-activated protein kinase 1; Stress-activated protein kinase 1c; stress-activated protein kinase 2A; Stress-activated protein kinase JNK1; TF65; Transcription factor p65; v-rel avian reticuloendotheliosis viral oncogene homolog A; v-rel avian reticuloendotheliosis viral oncogene homolog A (nuclear factor of kappa light polypeptide gene enhancer in B-cells 3 (p65)); v-rel reticuloendotheliosis viral oncogene homolog A (avian); v-rel reticuloendotheliosis viral oncogene homolog A, nuclear factor of kappa light polypeptide gene enhancer in B-cells 3, p65

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