A Model for Network-Based Identification and Pharmacological Targeting of Aberrant, Replication-Permissive Transcriptional Programs Induced by Viral Infection

Abstract Precise characterization and targeting of host cell transcriptional machinery hijacked by viral infection remains challenging. Here, we show that SARS-CoV-2 hijacks the host cell transcriptional machinery to induce a phenotypic state amenable to its replication. Specifically, analysis of Master Regulator (MR) proteins representing mechanistic determinants of the gene expression signature induced by SARS-CoV-2 in infected cells revealed coordinated inactivation of MRs enriched in physical interactions with SARS-CoV-2 proteins, suggesting their mechanistic role in maintaining a host cell state refractory to virus replication. To test their functional relevance, we measured SARS-CoV-2 replication in epithelial cells treated with drugs predicted to activate the entire repertoire of repressed MRs, based on their experimentally elucidated, context-specific mechanism of action. Overall, >80% of drugs predicted to be effective by this methodology induced significant reduction of SARS-CoV-2 replication, without affecting cell viability. This model for host-directed pharmacological therapy is fully generalizable and can be deployed to identify drugs targeting host cell-based MR signatures induced by virtually any pathogen..

Medienart:

Preprint

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

ResearchSquare.com - (2022) vom: 29. Juli Zur Gesamtaufnahme - year:2022

Sprache:

Englisch

Beteiligte Personen:

Laise, Pasquale [VerfasserIn]
Stanifer, Megan [VerfasserIn]
Bosker, Gideon [VerfasserIn]
Sun, Xiaoyun [VerfasserIn]
Triana, Sergio [VerfasserIn]
Doldan, Patricio [VerfasserIn]
Manna, Federico La [VerfasserIn]
De Menna, Marta [VerfasserIn]
Realubit, Ronald [VerfasserIn]
Pampou, Sergey [VerfasserIn]
Karan, Charles [VerfasserIn]
Alexandrov, Theodore [VerfasserIn]
Julio, Marianna Kruithof-de [VerfasserIn]
Califano, Andrea [VerfasserIn]
Boulant, Steeve [VerfasserIn]
Alvarez, Mariano [VerfasserIn]

Links:

Volltext [lizenzpflichtig]
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Themen:

570
Biology

doi:

10.21203/rs.3.rs-1287631/v1

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XRA03516087X