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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Preparation and characterization of vesiculin, a two-chain protein derived from IGF-2
 Mrzílková, Karolína ; Žáková, Lenka (advisor) ; Pačesová, Andrea (referee)
Hormones of insulin family are one of the most studied groups of proteins due to their connection to large number of diseases including type two diabetes mellitus, tumorigenesis and some neurodegenerative diseases. The newest member of this superfamily is a two-chain analogue of IGF-2 called vesiculin. This peptide was originally isolated from secretory granules of mouse βTC6-F7 cell line and is currently believed to have a endocrine or paracrine effect on pancreatic β-cells. Its sequence homology with IGF-2 and structural similarity to insulin foreshadows vesiculin's potential metabolic, proliferation and growth properties and further secures its place as scientifically interesting and clinically lucrative topic. The insulin theme is corelated with insulin resistance, pathological state present primarily in early stages of development of type two diabetes mellitus. Vesiculin is able to stimulate glucose uptake and glycogen synthesis even in this condition which differentiates it form insulin and IGF-2 whose glucoregulatory activity is blunted in face of insulin resistance. Further research of vesiculin and insulin family receptor interaction, including dimeric tyrosinekinase receptor for IGF-1 and insulin, but also monomeric IGF-2 receptor, can provide more knowledge on character of this binding...
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