Stress-Induced Changes in Nucleocytoplasmic Localization of Crucial Factors in Gene Expression Regulation

This study investigates the toxic effect of harmful materials, unfiltered by the placenta, on neonatal umbilical cord (UC) vessels, focusing on stress-induced adaptations in transcriptional and translational processes. It aims to analyze changes in pathways related to mRNA condensate formation, tran...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Khamit Ali
Chakraborty Payal
Zahorán Szabolcs
Villanyi Zoltan
Orvos Hajnalka
Hermesz Edit
Dokumentumtípus: Cikk
Megjelent: 2024
Sorozat:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 25 No. 7
Tárgyszavak:
doi:10.3390/ijms25073895

mtmt:34763013
Online Access:http://publicatio.bibl.u-szeged.hu/30385
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520 3 |a This study investigates the toxic effect of harmful materials, unfiltered by the placenta, on neonatal umbilical cord (UC) vessels, focusing on stress-induced adaptations in transcriptional and translational processes. It aims to analyze changes in pathways related to mRNA condensate formation, transcriptional regulation, and DNA damage response under maternal smoking-induced stress. UC vessels from neonates born to smoking (Sm) and nonsmoking mothers (Ctr) were examined. Immunofluorescence staining and confocal microscopy assessed the localization of key markers, including Transcription Complex Subunit 1 (CNOT1) and the largest subunit of RNA polymerase II enzyme (RPB1). Additionally, markers of DNA damage response, such as Poly(ADP-ribose) polymerase-1, were evaluated. In Sm samples, dissolution of CNOT1 granules in UC vessels was observed, potentially aiding stalled translation and enhancing transcription via RPB1 assembly and translocation. Control vessels showed predominant cytoplasmic RPB1 localization. Despite adaptive responses, Sm endothelial cells exhibited significant damage, indicated by markers like Poly(ADP-ribose) polymerase-1. Ex vivo metal treatment on control vessels mirrored Sm sample alterations, emphasizing marker roles in cell survival under toxic exposure. Maternal smoking induces specific molecular adaptations in UC vessels, affecting mRNA condensate formation, transcriptional regulation, and DNA damage response pathways. Understanding these intricate molecular mechanisms could inform interventions to improve neonatal health outcomes and mitigate adverse effects of toxic exposure during pregnancy. 
650 4 |a Biológiai tudományok 
650 4 |a Általános orvostudomány 
700 0 1 |a Chakraborty Payal  |e aut 
700 0 1 |a Zahorán Szabolcs  |e aut 
700 0 1 |a Villanyi Zoltan  |e aut 
700 0 1 |a Orvos Hajnalka  |e aut 
700 0 1 |a Hermesz Edit  |e aut 
856 4 0 |u http://publicatio.bibl.u-szeged.hu/30385/1/ijms-25-03895-4.pdf  |z Dokumentum-elérés