transient receptor potential canonical (TRPC) proteins form Ca (2 +) – permeable cation channel activated on stimulation of metabotropic receptors coupled to phospholipase C. Among the subfamily TRPC, TRPC3 and TRPC6 channel directly activated by diacylglycerol (DAG) plays an important role in < em> brain – derived neurotrophic factor ( BDNF ) signals, promoting the development of neuronal and survival , In various disease models, BDNF to restore neurological deficit, but its therapeutic potential is limited by poor pharmacokinetic profiles.
Explanation framework for designing small molecules, which Stirs BDNF -like activity through TRPC3 and TRPC6, establish a solid basis to overcome these limitations. We found, through the screening of the library, a group of piperazine- derived a compound that activates a DAG-activated TRPC3 / TRPC6 / TRPC7 channels. Compound 4 – (5-chloro-2-methylphenyl) piperazine-1-yl methanone (PPZ1) and 2 – [ 4 – (2 , 3-dimethylphenyl) piperazine-1-yl] -N- (2-ethoxyphenyl) acetamide (PPZ2) is activated, dose-dependent manner, recombinant TRPC3 / TRPC6 / TRPC7 channels, but no other TRPCs, The human embryonic kidney cells. PPZ2 activated TRPC6 as the original channels in smooth muscle cells isolated from rabbit portal vein. Also, PPZ2 generate cation currents and Ca (2+) influx of cultured rat neurons center.
Strikingly, both compounds induced BDNF -like neurite growth and neuroprotection, which was abolished by knockdown or inhibition TRPC3 / TRPC6 / TRPC7 in cultured neurons. Inhibitors of Ca (2+) signaling pathway, except calcineurin, promotion of neurite disruption caused by PPZ compound. PPZ2 increased activation of Ca (2 +) – dependent transcription factor , cAMP response element-binding protein.
These findings indicate that Ca (2+) signaling is mediated by activation of DAG-activated channel underlies TRPC neurotrophic the effect of the compound PPZ. Thus, piperazine- derived TRPC channel activator DAG-activated provide important insights for the future development of a new class of synthetic neurotrophic drug.
Relevance of Post-Stroke Circulating Levels of BDNF as a prognostic biomarker Stroke Outcomes.
Impact of rt-PA treatment. recombinant the form of tissue plasminogen activator (rt-PA) is the only curative treatment for ischemic stroke. More recently, the t-PA has been associated with metabolic brain – derived neurotrophic factor ( BDNF ), the main neurotrophin is involved in post-stroke neuroplasticity.
Thus, the purpose of our study was to investigate the effects of rt-PA treatment of post-stroke circulating BDNF level Human and in animals. Serum BDNF levels and t-PA activity / plasmin was measured at admission and up to 90 days in stroke patients who receive (n = 2 4 ) or not (n = 1 4 ) rt-PA perfusion. We investigated the relationship between serum BDNF with the same t-PA / plasmin activity, the results of neurological and cardiovascular score at admission.
Description: Quantitativesandwich ELISA kit for measuring Human Neurotrophin 4, NT-4 in samples from serum, plasma, cell culture supernates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitativesandwich ELISA kit for measuring Human Neurotrophin 4, NT-4 in samples from serum, plasma, cell culture supernates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: Quantitativesandwich ELISA kit for measuring Mouse Neurotrophin 4, NT-4 in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitativesandwich ELISA kit for measuring Mouse Neurotrophin 4, NT-4 in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: Quantitativesandwich ELISA kit for measuring Rat Neurotrophin 4, NT-4 in samples from serum, plasma, tissue homogenates. A new trial version of the kit, which allows you to test the kit in your application at a reasonable price.
Description: Quantitativesandwich ELISA kit for measuring Rat Neurotrophin 4, NT-4 in samples from serum, plasma, tissue homogenates. Now available in a cost efficient pack of 5 plates of 96 wells each, conveniently packed along with the other reagents in 5 separate kits.
Description: 4-1BB Receptor, a member of the TNF superfamily of receptors, is mainly expressed on the surface of a variety of T cells, but also found in B cells, monocytes, and various transformed cell lines. 4-1BB Receptor binds to 4-1BBL to provide a co-stimulatory signal for T lymphocytes. Signaling by 4-1BB Receptor has been implicated in the antigen-presentation process and generation of cytotoxic T cells. The human 4-1BB Receptor gene codes for a 255 amino acid type I transmembrane protein containing a 17 amino acid N-terminal signal sequence, a 169 amino acid extracellular domain, a 27 amino acid transmembrane domain and a 42 amino acid cytoplasmic domain. Recombinant human soluble 4-1BB Receptor is a 167 amino acid polypeptide (17.7 kDa), which contains the cysteine rich TNFR-like extracellular domain of 4-1BB Receptor.
Description: PF-4 is a CXC chemokine that is expressed in megakaryocytes and stored in the α-granules of platelets. PF-4 is chemotactic towards neutrophils and monocytes and has been shown to inhibit angiogenesis. Recombinant human PF-4 is a 7.8 kDa protein containing 70 amino acid residues, including the four highly conserved residues present in CXC chemokines.
Genorise® Recombinant feline Neurotrophin 4 (NT-4) protein
Description: IL-4 has many biological roles, including the stimulation of activated B-cell and T-cell proliferation, and the differentiation of CD4+ T-cells into Th2 cells. It is a key regulator in humoral and adaptive immunity. Feline IL-4 Recombinant Protein is purified interleukin-4 produced in yeast.
Description: Recombinant NT-4 is a disulfide-linked homodimer protein consisting of two 131 amino acid residues, and migrates as an approximately 29 kDa protein under non-reducing and as 14 kDa under reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human Neurotrophin-4 mature chain was expressed in E. coli.
Description: Recombinant NT-4 is a disulfide-linked homodimer protein consisting of two 131 amino acid residues, and migrates as an approximately 29 kDa protein under non-reducing and as 14 kDa under reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human Neurotrophin-4 mature chain was expressed in E. coli.
Description: NT-4 is a neurotrophic factor structurally related to β-NGF, BDNF, and NT-3. These proteins belong to the cysteine-knot family of growth factors that assume stable dimeric structures. NT-4 is expressed in the prostate, thymus, placenta and skeletal muscle. NT-4 can signal through the LNGFR and trkB receptors and promotes the survival of peripheral sensory sympathetic neurons. Recombinant human NT-4 is a noncovalently linked homodimer, of two 14.0 kDa polypeptide monomers (260 total amino acid residues).
In parallel, serum BDNF levels and t-PA activity / plasmin were assessed before and after (1, 4 and 2 4 h) induced an ischemic stroke in mice. Our study showed higher serum BDNF levels and better neurological outcomes in the rt-PA-treated compared to non-treated patients. However, serum BDNF level does not predict the outcome of a blow when the entire cohort of stroke patients were analyzed.
