• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Doctoral Thesis
DOI
https://doi.org/10.11606/T.5.2024.tde-24042024-115026
Document
Author
Full name
Felipe Delatorre Busser
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2024
Supervisor
Committee
Chadi, Gerson (President)
Gilio, Joyce Meire
Maximino, Jessica Ruivo
Pasini, Fátima Solange
Title in Portuguese
Mirnômica e proteômica no líquor de doentes com esclerose lateral amiotrófica
Keywords in Portuguese
Biomarcador
Esclerose Lateral Amiotrófica
Líquido cérebro-espinal
MicroRNA
PCR array
PCR em tempo real
Abstract in Portuguese
A Esclerose Lateral Amiotrófica (ELA) é uma doença neurodegenerativa progressiva e fatal de causa desconhecida. Considerando as evidências recentes da participação dos microRNAs (miRNAs) em eventos neurodegenerativos e de seus promissores papéis como biomarcadores, este estudo analisou por qPCR (TLDA) o perfil de miRNAs no líquido cérebro-espinal (LCE) de doentes ELA em relação a sujeitos não portadores de ELA. Os genes alvo dos miRNAs diferencialmente expressos nos doentes com ELA foram evidenciados através da plataforma miRWalk 3.0. Tais alvos foram correlacionados às proteínas desreguladas no LCE de doentes ELA por espectrometria de massa (LC-MS) em estudo anterior. Análises de bioinformática identificaram as vias moleculares relativas a estas proteínas. Verificou-se que os miRNAs 100-5p, 346, 338- 5p, 520D-3p, 584, 638, 639, 875-5p, evidenciados na comparação entre os dois grupos do estudo, estão associados à regulação da expressão de 135 proteínas validadas apontadas pelo MiRWalk (7.810 preditas). A análise de correlação entre as proteínas reguladas pelos miRNAs desregulados e o estudo de proteômica dos grupos ELA e não ELA (LC-MS) evidenciou 57 proteínas. Os resultados das análises enriquecidas feitas a partir dessas proteínas realçaram as categorias Prion diseases, Blood Coagulation, Extrecellular Exosome, Plasma Membrane e Calcium Ion Binding, além de destacaram as moléculas APP, CDH13, FGA, FGB, CD59, C6, C7, C9, NCAM, NCAM1, PLG, CNTN1 e SERPIND1 no LCE dos sujeitos ELA como relevantes a serem detalhados em estudos futuros da fisiopatologia e o desenvolvimento de biomarcadores para ELA
Title in English
Myrnomics and proteomics in the cerebro spinal fluid of patients with amyotrophic lateral sclerosis
Keywords in English
Amyotrophic Lateral Sclerosis
Biomarker
Cerebrospinal fluid
MicroRNA
PCR array
Real-time PCR
Abstract in English
Amyotrophic Lateral Sclerosis (ALS) is a progressive and fatal neurodegenerative disease of unknown cause. Considering the recent evidence of the participation of microRNAs (miRNAs) in neurodegenerative events and their promising roles as biomarkers, this study analyzed by qPCR (TLDA) the profile of miRNAs in the cerebrospinal fluid (CSF) of ALS patients in relation to subjects without ALS carriers. The target genes of differentially expressed miRNAs in ALS patients were highlighted using the miRWalk 3.0 platform. Such targets were correlated with proteins differentially expressed in the CSF of ALS patients by mass spectrometry (LC-MS) in a previous study. Bioinformatics analyzes identified the molecular pathways related to these proteins. It was found that the miRNAs 100-5p, 346, 338-5p, 520D-3p, 584, 638, 639, 875-5p, evidenced in the comparison between the two study groups, are associated with the regulation of the expression of 135 proteins validated points indicated by MirWalk (7,810 predicted). The correlation analysis between the proteins regulated by some of the miRNAs highlighted and the proteomics study of the ALS and non-ALS groups (LC-MS) revealed 57 proteins. The results of the enrichment analyzis carried out using these proteins highlighted the categories Prion diseases; Blood Coagulation; Extracellular Exosome; Plasma Membrane and Calcium Ion Binding, and highlighted the molecules APP, CDH13, FGA, FGB, CD59, C6, C7, C9, NCAM, NCAM1, PLG, CNTN1 and SERPIND1 in the CSF of ALS subjects as relevant in future studies of pathophysiology and the development of biomarkers for ALS
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2024-05-03
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.