The Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway is a chain of interactions between proteins in a cell.
The JAK-STAT signaling pathway transmits information from extracellular chemical signals to the nucleus resulting in DNA transcription and expression of genes involved in immunity, proliferation, differentiation, apoptosis and oncogenesis. This pathway plays a prominent role in mediating signal transduction for many cytokines.
There are three key parts of JAK-STAT signaling pathway: Janus kinases (JAKs), Signal Transducer and Activator of Transcription proteins (STATs), and receptors (which bind the chemical signals). In mammals, the JAK/STAT pathway is the principal signaling mechanism for a wide array of cytokines and growth factors.
Following the binding of cytokines to their cognate receptor, STATs are activated by members of the JAK family of tyrosine kinases. Once activated, they dimerize and translocate to the nucleus and modulate the expression of target genes.
In addition to the activation of STATs, JAKs mediate the recruitment of other molecules such as the MAP kinases, PI3 kinase etc. These molecules process downstream signals via the Ras-Raf-MAP kinase and PI3 kinase pathways which results in the activation of additional transcription factors.
Dysregulation of JAK-STAT signaling is associated with various immune disorders. Accumulating evidence has discovered that STAT3 SNPs is associated with Crohn’s disease, psoriasis and ankylosing spondylitis, STAT4 SNPs is associated with rheumatoid arthritis, Crohn’s disease, systemic lupus erythematosus and Sjogren’s syndrome, and STAT6 SNPs is associated with asthma.
Additionally, given the researches implicating JAK-STAT in autoimmune disease and malignancy, it is not surprising that this pathway has become an attractive target for pharmaceuticals. Ruxolitinib, a JAK1 and JAK2 inhibitor with efficacy for the treatment of polycythemia vera and myelofibrosis, was the first FDA approved JAK inhibitor, or Jakinib.
|AKT1||AKT1 Antibody||AKT1 Protein||AKT1 ELISA Kit|
|AKT2||AKT2 Antibody||AKT2 Protein||AKT2 ELISA Kit|
|AKT3||AKT3 Antibody||AKT3 Protein||AKT3 ELISA Kit|
|AOX1||AOX1 Antibody||AOX1 Protein||AOX1 ELISA Kit|
|BCL2||BCL2 Antibody||BCL2 Protein||BCL2 ELISA Kit|
|BCL2L1||BCL2L1 Antibody||BCL2L1 Protein||BCL2L1 ELISA Kit|
|CADM1||CADM1 Antibody||CADM1 Protein||CADM1 ELISA Kit|
|CCND1||CCND1 Antibody||CCND1 Protein||CCND1 ELISA Kit|
|CCND2||CCND2 Antibody||CCND2 Protein||CCND2 ELISA Kit|
|CCND3||CCND3 Antibody||CCND3 Protein||CCND3 ELISA Kit|
|CDKN1A||CDKN1A Antibody||CDKN1A Protein||CDKN1A ELISA Kit|
|CISH||CISH Antibody||CISH Protein||CISH ELISA Kit|
|CNTF||CNTF Antibody||CNTF Protein||CNTF ELISA Kit|
|CNTFR||CNTFR Antibody||CNTFR Protein||CNTFR ELISA Kit|
|CREBBP||CREBBP Antibody||CREBBP Protein||CREBBP ELISA Kit|
|CRLF2||CRLF2 Antibody||CRLF2 Protein||CRLF2 ELISA Kit|
|CSF2||CSF2 Antibody||CSF2 Protein||CSF2 ELISA Kit|
|CSF2RA||CSF2RA Antibody||CSF2RA Protein||CSF2RA ELISA Kit|
|CSF2RB||CSF2RB Antibody||CSF2RB Protein||CSF2RB ELISA Kit|
|CSF3||CSF3 Antibody||CSF3 Protein||CSF3 ELISA Kit|