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The Janus kinase/signal transducers and activators of transcription (JAK/STAT) signalling pathway plays a significant role in immune responses to pathogens. In invertebrates, three core components (Domeless, Hopscotch and STAT92E) of the JAK/STAT pathway were first identified in Drosophila melanogaster. In the present study, we report the cloning and characterisation of DOME, JAK and STAT from Eriocheir sinensis. EsDOME, EsJAK and EsSTAT are 1299, 1110 and 794 amino acid proteins encoded by 4200, 3333 and 2385 bp open reading frames, respectively. Bioinformatics analysis revealed that all three share specific domains with corresponding functions. Quantitative real-time PCR showed that all three components were highly expressed in various tissues including the gill, hepatopancreas and hemocytes. Moreover, EsDOME, EsJAK and EsSTAT were upregulated significantly in hemocytes after bacterial challenge. In addition, the JAK/STAT signalling pathway positively regulates antimicrobial peptide expression during the antibacterial immune response. Thus, the JAK/STAT pathway plays a critical role in bacterial immune responses in E. sinensis.
This article was published in the following journal.
Name: Fish & shellfish immunology
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The purpose of this study is to determine effect of Mouthwash containing Camellia sinensis extracts on oral malodor and gingival inflammation in gingivitis subjects.
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Camellia sinensis L. (formerly Thea sinensis) is an evergreen Asiatic shrub of the THEACEAE family. The infusion of leaves of this plant is used as Oriental TEA which contains CAFFEINE; THEOPHYLLINE; and epigallocatechin gallate.
A family of transcription factors containing SH2 DOMAINS that are involved in CYTOKINE-mediated SIGNAL TRANSDUCTION. STAT transcription factors are recruited to the cytoplasmic region of CELL SURFACE RECEPTORS and are activated via PHOSPHORYLATION. Once activated they dimerize and translocate into the CELL NUCLEUS where they influence GENE expression. They play a role in regulating CELL GROWTH PROCESSES and CELL DIFFERENTIATION. STAT transcription factors are inhibited by SUPPRESSOR OF CYTOKINE SIGNALING PROTEINS and PROTEIN INHIBITORS OF ACTIVATED STAT.
The infusion of leaves of CAMELLIA SINENSIS (formerly Thea sinensis) as a beverage, the familiar Oriental tea, which contains CATECHIN (especially epigallocatechin gallate) and CAFFEINE.
A family of intracellular tyrosine kinases that participate in the signaling cascade of cytokines by associating with specific CYTOKINE RECEPTORS. They act upon STAT TRANSCRIPTION FACTORS in signaling pathway referred to as the JAK/STAT pathway. The name Janus kinase refers to the fact the proteins have two phosphate-transferring domains.
Infection of the biliary passages with CLONORCHIS SINENSIS, also called Opisthorchis sinensis. It may lead to inflammation of the biliary tract, proliferation of biliary epithelium, progressive portal fibrosis, and sometimes bile duct carcinoma. Extension to the liver may lead to fatty changes and cirrhosis. (From Dorland, 27th ed)
Cloning in biology is the process of producing similar populations of genetically identical individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce asexually. Cloning in biotechnology refers to processes used to cre...
Polymerase Chain Reaction (PCR)
PCR (Polymerase Chain Reaction) uses the ability of DNA polymerase (enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two ident...