The impact of overexpression of SH2D3C protein on the regulation of NRF2 - KEAP1 signaling pathway

Autor: Marinović, Ivana
Přispěvatelé: Matovina, Mihaela, Oršolić, Nada
Jazyk: chorvatština
Rok vydání: 2022
Předmět:
Popis: Analizom interaktoma humane dipeptidil-peptidaze III (DPP III) otkriven je protein 3C koji sadrţi domenu SH2 (SH2D3C) kao jedan od potencijalnih interaktora DPP III, proteina koji je uključen u regulaciju oksidacijskog stresa preko signalnog puta NRF2-KEAP1. Potencijalna uloga interakcije DPP III-SH2D3C još uvijek je nepoznata, ali poznato je da protein SH2D3C sudjeluje u regulaciji stanične migracije i adhezije, organizacije tkiva i regulaciji imunog odgovora te bi interakcija DPP III-SH2D3C mogla predstavljati vezu izmeĎu regulacije tih procesa i oksidacijskog stresa. Cilj ovog rada bio je prekomjerno eksprimirati izoforme 2 i 3 proteina SH2D3C u stanicama HEK293T te utvrditi kako povećana ekspresija ovih izoformi djeluje na regulaciju signalnog puta NRF2-KEAP1, odnosno na ekspresiju mRNA gena NQO1, HMOX1 i NRF2 u bazalnim i u uvjetima oksidacijskog stresa izazvanog vodikovim peroksidom. Prema dobivenim rezultatima prekomjerna ekspresija izoforme 2 u bazalnim uvjetima ne utječe na ekspresiju gena NQO1, HMOX1 i NRF2, dok prekomjerna ekspresija izoforme 3 uzrokuje statistički značajno smanjenje ekspresije gena NQO1 i NRF2. U uvjetima oksidacijskog stresa nakon tretmana vodikovim peroksidom prekomjerna ekspresija obiju izoformi ne utječe na ekspresiju gena NQO1, HMOX1 i NRF2. Analysis of the human dipeptidyl peptidase III (DPP III) interactome revealed SH2 domaincontaining protein 3C (SH2D3C) as one of the potential interactors of DPP III, a protein involved in the regulation of oxidative stress via the NRF2-KEAP1 signaling pathway. The potential role of the DPP III-SH2D3C interaction is still unknown, but it is known that the SH2D3C protein participates in the regulation of cell migration and adhesion, tissue organization and the regulation of the immune response, and DPP III-SH2D3C interaction could represent a link between the regulation of these processes and oxidative stress. The aim of this thesis was to overexpress isoforms 2 and 3 of the SH2D3C protein in HEK293T cells and to determine how the increased expression of these isoforms affects the regulation of the NRF2-KEAP1 signaling pathway, i.e. the mRNA expression of the NQO1, HMOX1 and NRF2 genes in basal and in conditions of oxidative stress caused by hydrogen peroxide. According to the obtained results, the overexpression of isoform 2 in basal conditions does not affect the expression of NQO1, HMOX1 and NRF2 genes, while the overexpression of isoform 3 causes a statistically significant decrease in the expression of the NQO1 and NRF2 genes. In conditions of oxidative stress after treatment with hydrogen peroxide, overexpression of both isoforms does not affect the expression of NQO1, HMOX1 and NRF2 genes
Databáze: OpenAIRE