Colivelin TFA

• CAT Number: I046269
• CAS Number: 2803948-60-7
• Molecular Formula: C119H206N32O35.C2HF3O2
• Molecular Weight: 2759.12
• Purity: ≥95%

Colivelin TFA is a brain penetrant neuroprotective peptide and a potent activator of STAT3, suppresses neuronal death by activating STAT3 in vitro[1]. Colivelin TFA exhibits long-term beneficial effects against neurotoxicity, Aβ deposition, neuronal apoptosis, and synaptic plasticity deficits in neurodegenerative disease[2]. Colivelin TFA has the potential for the treatment of alzheimer’s disease and ischemic brain injury[1].
Colivelin completely suppresses death induced by overexpressed FAD-causative genes and Aβ1-43 at a concentration of 100 fm, and keep its neuroprotective action at or above the levels of 1 nm[1].Colivelin-induced neuroprotection occurs via two neuroprotective pathways: one mediated by Ca2+/calmodulin-dependent protein kinase IV, triggered by ADNF, and one mediated by signal transducer and activator of transcription 3, triggered by HN[1].
Colivelin reverses caspase3, Bax and Bcl-2 expressions in HT22 cells medaited by rmMFG-E8 in the co-cultured cells under OGD condition[4].
Colivelin (50 µg/mL, 4 hours) significantly increases the p-STAT3 protein levels in BV-2 cells[4].
Colivelin(intracerebroventricular administration; 10 pmol/3 μl; 3 weeks) suppresses impairment in spatial working memory induced by repetitive intracerebroventricular injection of Aβ25-35 or Aβ1-42, in addition, it antagonizes neuronal loss in the CA1 region of hippocampus induced by hippocampal injection of Aβ1-42[1].
Colivelin (intraperitoneal administration; 1.4, 7, or 35 nM/0.21mL; on the Y-maze testday) suppresses memory impairment caused by 3-quinuclidinyl benzilateand restricts functional memory deficit[1].
Colivelin (intraperitoneal injection; 1 mg/kg; 14 days) results in improved motor and cognitive function with time by performance of mNSS, rotarod, and corner turning test.It also reduces lesion volume and improves neurological deficits after MCAO[1].

Reference

[1]. Chiba T, et al. Development of a femtomolar-acting humanin derivative named colivelin by attaching activity-dependent neurotrophic factor to its N terminus: characterization of colivelin-mediated neuroprotection against Alzheimer’s disease-relevant insults in vitro and in vivo. J Neurosci. 2005 Nov 2;25(44):10252-61.
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[2]. Zhao H, et al. Colivelin Rescues Ischemic Neuron and Axons Involving JAK/STAT3 Signaling Pathway.Neuroscience. 2019 Sep 15;416:198-206.
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[3]. Pan Z, et al. Upregulation of HSP72 attenuates tendon adhesion by regulating fibroblast proliferation and collagen production via blockade of the STAT3 signaling pathway.Cell Signal. 2020 Mar 18:109606.
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[4]. Fang YY, et al. MFG-E8 alleviates oxygen-glucose deprivation-induced neuronal cell apoptosis by STAT3 regulating the selective polarization of microglia. Int J Neurosci. 2020 Mar 12:1-10.
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[5]. Chiu WC, et al. The Synthetic β-Nitrostyrene Derivative CYT-Rx20 Inhibits Esophageal Tumor Growth and Metastasis via PI3K/AKT and STAT3 Pathways. PLoS One. 2016 Nov 22;11(11):e0166453.
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