Increased mTOR Signaling and Impaired Autophagic Flux Are Hallmarks of SARS-CoV-2 Infection.
The COVID-19 (Coronavirus Disease 2019), caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), severely affects mainly individuals with pre-existing comorbidities. Here our aim was to correlate the mTOR (mammalian/mechanistic Target of Rapamycin) and autophagy pathways with the disease severity. Through western blotting and RNA analysis, we found increased mTOR signaling and suppression of genes related to autophagy, lysosome, and vesicle fusion in Vero E6 cells infected with SARS-CoV-2 as well as in transcriptomic data mining of bronchoalveolar epithelial cells from severe COVID-19 patients. Immunofluorescence co-localization assays also indicated that SARS-CoV-2 colocalizes within autophagosomes but not with a lysosomal marker. Our findings indicate that SARS-CoV-2 can benefit from compromised autophagic flux and inhibited exocytosis in individuals with chronic hyperactivation of mTOR signalin
Authors
Zambalde EP, Dias TL, Maktura GC, Amorim MR, et al.
External link
Publication Year
Publication Journal
Associeted Project
Systems Immunology of Human Diseases
Lista de serviços
-
As antisense RNA gets intronic.As antisense RNA gets intronic.
-
Androgen responsive intronic non-coding RNAs.Androgen responsive intronic non-coding RNAs.
-
Conserved tissue expression signatures of intronic noncoding RNAs transcribed from human and mouse loci.Conserved tissue expression signatures of intronic noncoding RNAs transcribed from human and mouse loci.
-
The intronic long noncoding RNA ANRASSF1 recruits PRC2 to the RASSF1A promoter, reducing the expression of RASSF1A and increasing cell proliferation.The intronic long noncoding RNA ANRASSF1 recruits PRC2 to the RASSF1A promoter, reducing the expression of RASSF1A and increasing cell proliferation.
-
Antisense intronic non-coding RNA levels correlate to the degree of tumor differentiation in prostate cancer.Antisense intronic non-coding RNA levels correlate to the degree of tumor differentiation in prostate cancer.
-
Insight Into the Long Noncoding RNA and mRNA Coexpression Profile in the Human Blood Transcriptome Upon Leishmania infantum Infection.Insight Into the Long Noncoding RNA and mRNA Coexpression Profile in the Human Blood Transcriptome Upon Leishmania infantum Infection.
-
Long non-coding RNAs associated with infection and vaccine-induced immunityLong non-coding RNAs associated with infection and vaccine-induced immunity
-
Comparative transcriptomic analysis of long noncoding RNAs in Leishmania-infected human macrophagesComparative transcriptomic analysis of long noncoding RNAs in Leishmania-infected human macrophages