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© Research
Publication : Science (New York, N.Y.)

Inborn errors of OAS-RNase L in SARS-CoV-2-related multisystem inflammatory syndrome in children.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Science (New York, N.Y.) - 20 Dec 2022

Lee D, Le Pen J, Yatim A, Dong B, Aquino Y, Ogishi M, Pescarmona R, Talouarn E, Rinchai D, Zhang P, Perret M, Liu Z, Jordan I, Elmas Bozdemir S, Bayhan GI, Beaufils C, Bizien L, Bisiaux A, Lei W, Hasan M, Chen J, Gaughan C, Asthana A, Libri V, Luna JM, Jaffré F, Hoffmann HH, Michailidis E, Moreews M, Seeleuthner Y, Bilguvar K, Mane S, Flores C, Zhang Y, Arias AA, Bailey R, Schlüter A, Milisavljevic B, Bigio B, Le Voyer T, Materna M, Gervais A, Moncada-Velez M, Pala F, Lazarov T, Levy R, Neehus AL, Rosain J, Peel J, Chan YH, Morin MP, Pino-Ramirez RM, Belkaya S, Lorenzo L, Anton J, Delafontaine S, Toubiana J, Bajolle F, Fumadó V, DeDiego ML, Fidouh N, Rozenberg F, Pérez-Tur J, Chen S, Evans T, Geissmann F, Lebon P, Weiss SR, Bonnet D, Duval X, , Covid HGE, Pan-Hammarström Q, Planas AM, Meyts I, Haerynck F, Pujol A, Sancho-Shimizu V, Dalgard C, Bustamante J, Puel A, Boisson-Dupuis S, Boisson B, Maniatis T, Zhang Q, Bastard P, Notarangelo L, Béziat V, Perez de Diego R, Rodriguez-Gallego C, Su HC, Lifton RP, Jouanguy E, Cobat A, Alsina L, Keles S, Haddad E, Abel L, Belot A, Quintana-Murci L, Rice CM, Silverman RH, Zhang SY, Casanova JL,

Link to Pubmed [PMID] – 36538032

Link to DOI – 10.1126/science.abo3627

Science 2022 Dec; (): eabo3627

Multisystem inflammatory syndrome in children (MIS-C) is a rare and severe condition that follows benign COVID-19. We report autosomal recessive deficiencies of OAS1, OAS2, or RNASEL in five unrelated children with MIS-C. The cytosolic dsRNA-sensing OAS1 and OAS2 generate 2′-5′-linked oligoadenylates (2-5A) that activate the ssRNA-degrading RNase L. Monocytic cell lines and primary myeloid cells with OAS1, OAS2, or RNASEL deficiencies produce excessive amounts of inflammatory cytokines upon dsRNA or SARS-CoV-2 stimulation. Exogenous 2-5A suppresses cytokine production in OAS1- but not RNase L-deficient cells. Cytokine production in RNase L-deficient cells is impaired by MDA5 or RIG-I deficiency and abolished by MAVS deficiency. Recessive OAS-RNase L deficiencies in these patients unleash the production of SARS-CoV-2-triggered, MAVS-mediated inflammatory cytokines by mononuclear phagocytes, thereby underlying MIS-C.

https://pubmed.ncbi.nlm.nih.gov/36538032