J 2024

Overexpression of Egr1 Transcription Regulator Contributes to Schwann Cell Differentiation Defects in Neural Crest-Specific Adar1 Knockout Mice

ZERAD, Lisa; Nadjet GACEM; Fanny GAYDA; Lucie DAY; Ketty SINIGAGLIA et al.

Základní údaje

Originální název

Overexpression of Egr1 Transcription Regulator Contributes to Schwann Cell Differentiation Defects in Neural Crest-Specific Adar1 Knockout Mice

Autoři

ZERAD, Lisa; Nadjet GACEM; Fanny GAYDA; Lucie DAY; Ketty SINIGAGLIA; Laurence RICHARD; Melanie PARISOT; Nicolas CAGNARD; Stephane MATHIS; Christine BOLE-FEYSOT; Mary Anne O'CONNELL; Veronique PINGAULT; Emilie DAMBROISE; Liam KEEGAN; Jean Michel VALLAT a Nadege BONDURAND

Vydání

Advances in Fuel Cells, BASEL, Elsevier, 2024, 2073-4409

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10601 Cell biology

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 5.200

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14740/24:00139746

Organizační jednotka

Středoevropský technologický institut

EID Scopus

Klíčová slova anglicky

Schwann cells; differentiation; ADAR1; MAVS; EGR1; neural crest

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 9. 6. 2025 15:51, Mgr. Eva Dubská

Anotace

V originále

Adenosine deaminase acting on RNA 1 (ADAR1) is the principal enzyme for the adenosine-to-inosine RNA editing that prevents the aberrant activation of cytosolic nucleic acid sensors by endogenous double stranded RNAs and the activation of interferon-stimulated genes. In mice, the conditional neural crest deletion of Adar1 reduces the survival of melanocytes and alters the differentiation of Schwann cells that fail to myelinate nerve fibers in the peripheral nervous system. These myelination defects are partially rescued upon the concomitant removal of the Mda5 antiviral dsRNA sensor in vitro, suggesting implication of the Mda5/Mavs pathway and downstream effectors in the genesis of Adar1 mutant phenotypes. By analyzing RNA-Seq data from the sciatic nerves of mouse pups after conditional neural crest deletion of Adar1 (Adar1cKO), we here identified the transcription factors deregulated in Adar1cKO mutants compared to the controls. Through Adar1;Mavs and Adar1cKO;Egr1 double-mutant mouse rescue analyses, we then highlighted that the aberrant activation of the Mavs adapter protein and overexpression of the early growth response 1 (EGR1) transcription factor contribute to the Adar1 deletion associated defects in Schwann cell development in vivo. In silico and in vitro gene regulation studies additionally suggested that EGR1 might mediate this inhibitory effect through the aberrant regulation of EGR2-regulated myelin genes. We thus demonstrate the role of the Mda5/Mavs pathway, but also that of the Schwann cell transcription factors in Adar1-associated peripheral myelination defects.

Návaznosti

GA19-16963S, projekt VaV
Název: Genetický model myši pro studium kontroly interferonu a zánětu
Investor: Grantová agentura ČR, A mouse genetic model to study the control of interferon and inflammation
GX21-27329X, projekt VaV
Název: ADAR-dependentní RNA editace; Jak imunitní systém a mozek porušují Centrální Dogma.
Investor: Grantová agentura ČR, ADAR RNA editing, how immune systems and brains breach The Central Dogma