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Bioreabsorbable polymeric nanodevice as peptide controlled delivery system to Alzheimer's disease therapy

Grant number: 14/20561-0
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): January 01, 2015
Effective date (End): December 31, 2018
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal researcher:Anderson de Oliveira Lobo
Grantee:Geisa Nogueira Salles
Home Institution: Instituto de Pesquisa e Desenvolvimento (IP&D). Universidade do Vale do Paraíba (UNIVAP). São José dos Campos , SP, Brazil
Associated research grant:11/17877-7 - Development of new polymeric scaffolds by electrospinning technique with incorporation of vertically aligned carbon nanotubes and nanohidroxyapatite for bone tissue regeneration, AP.JP


Alzheimer's Disease (AD) is a neurodegenerative pathology that affects 36 million people worldwide. Type 2 Diabetes Mellitus (T2DM) is a risk factor for AD, as this dementia has been linked to impaired insulin signalling in the brain, consequently, drugs that enhance this signalling may have therapeutic potential for AD. Several studies have shown that GLP-1 (glucagon-like peptide-1) and GIP (gastric inhibitory peptide), endogenous incretin hormones that enhances insulin secretion and reduces blood glucose levels, have many neuroprotective properties and are attractive alternatives to treat AD. Interestingly, a novel unimolecular dual incretin (GLP-1/GIP) peptide was developed to treat T2DM patients. In parallel, a technological innovation has been developed, testing biodegradable polymeric nanofibers as drug carriers for controlled release system due to their high functional features and controlled release in the body. For this reason, this study intends to associate the use of polymeric nanofibers and the novel dual incretin peptide in order to treat AD, in other words, we aim to develop a nanodevice able to provide slow and controlled release of this peptide in the organism, evaluating the effects of it in AD. The peptide will be incorporated into the nanofibers and a concentration-time curve will be performed in order to investigate peptide release and if it is long lasting in the organism. We intend to evaluate the therapy effects in intracellular organelles in vitro, using the cell line SH-SY5Y, human neuroblastoma, oxidatively stressed, in order to provide further evidence of neuronal metabolism after treatment. The behaviour will also be evaluated in vivo, in APP/PS1 transgenic mice, an animal model for AD. The nanodevice containing the peptide will be intraperitoneally incorporated in mice organism. Memory tasks and, subsequently, immunohistochemical analysis will be performed. It is expected to observe that this nanodispositive developed will provide long lasting release of the peptide, reducing inflammatory processes and achiving neuroprotective properties. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SALLES, GEISA NOGUEIRA; CAHO, MICHELE LONGONI; HOLSCHER, CHRISTIAN; PACHECO-SOARES, CRISTINA; PORCIONATTO, MARIMELIA; LOBO, ANDERSON OLIVEIRA. Neuroprotective and restorative properties of the GLP-1/GIP dual agonist DA-JC1 compared with a GLP-1 single agonist in Alzheimer's disease. Neuropharmacology, v. 162, JAN 1 2020. Web of Science Citations: 0.
SALLES, GEISA NOGUEIRA; CALIO, MICHELE LONGONI; AFEWERKI, SAMSON; PACHECO-SOARES, CRISTINA; PORCIONATTO, MARIMELIA; HOLSCHER, CHRISTIAN; LOBO, ANDERSON O. Prolonged Drug-Releasing Fibers Attenuate Alzheimer's Disease-like Pathogenesis. ACS APPLIED MATERIALS & INTERFACES, v. 10, n. 43, p. 36693-36702, OCT 31 2018. Web of Science Citations: 4.
SALLES, GEISA NOGUEIRA; DOS SANTOS PEREIRA, FERNANDA APARECIDA; PACHECO-SOARES, CRISTINA; MARCIANO, FERNANDA ROBERTA; HOLSCHER, CHRISTIAN; WEBSTER, THOMAS J.; LOBO, ANDERSON OLIVEIRA. A Novel Bioresorbable Device as a Controlled Release System for Protecting Cells from Oxidative Stress from Alzheimer's Disease. Molecular Neurobiology, v. 54, n. 9, p. 6827-6838, NOV 2017. Web of Science Citations: 5.
PEREIRA, F. A. S.; SALLES, G. N.; RODRIGUES, B. V. M.; MARCIANO, F. R.; PACHECO-SOARES, C.; LOBO, A. O. Diamond nanoparticles into poly(lactic acid) electrospun fibers: Cytocompatible and bioactive scaffolds with enhanced wettability and cell adhesion. Materials Letters, v. 183, p. 420-424, NOV 15 2016. Web of Science Citations: 6.

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