Systemic Tissue and Cellular Disruption from SARS-CoV-2 Infection revealed in COVID-19 Autopsies and Spatial Omics Tissue Maps
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Abstract
The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) virus has infected over 115 million people and caused over 2.5 million deaths worldwide. Yet, the molecular mechanisms underlying the clinical manifestations of COVID-19, as well as what distinguishes them from common seasonal influenza virus and other lung injury states such as Acute Respiratory Distress Syndrome (ARDS), remains poorly understood. To address these challenges, we combined transcriptional profiling of 646 clinical nasopharyngeal swabs and 39 patient autopsy tissues, matched with spatial protein and expression profiling (GeoMx) across 357 tissue sections. These results define both body-wide and tissue-specific (heart, liver, lung, kidney, and lymph nodes) damage wrought by the SARS-CoV-2 infection, evident as a function of varying viral load (high vs. low) during the course of infection and specific, transcriptional dysregulation in splicing isoforms, T cell receptor expression, and cellular expression states. In particular, cardiac and lung tissues revealed the largest degree of splicing isoform switching and cell expression state loss. Overall, these findings reveal a systemic disruption of cellular and transcriptional pathways from COVID-19 across all tissues, which can inform subsequent studies to combat the mortality of COVID-19, as well to better understand the molecular dynamics of lethal SARS-CoV-2 infection and other viruses.
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SciScore for 10.1101/2021.03.08.434433: (What is this?)
Please note, not all rigor criteria are appropriate for all manuscripts.
Table 1: Rigor
Institutional Review Board Statement Consent: Patient sample collection: All autopsies are performed with consent of next of kin and permission for retention and research use of tissue. Randomization not detected. Blinding not detected. Power Analysis not detected. Sex as a biological variable not detected. Table 2: Resources
Antibodies Sentences Resources Samples were stained with immunofluorescent antibodies for CD68, CD45, PanCK, and DNA (Syto-13). CD68suggested: NoneCD45suggested: NoneAntibody Panel including (TMPRSS2, clone EPR3861; ACE2, clone EPR4436; Cathepsin L/V/K/H, clone EPR8011; DDX5, clone EPR7239; and SARS-CoV-2 spike glycoprotein, polyclonal); Abeam; ab273594, Lot# GR3347471-1 GeoMx Solid Tumor … SciScore for 10.1101/2021.03.08.434433: (What is this?)
Please note, not all rigor criteria are appropriate for all manuscripts.
Table 1: Rigor
Institutional Review Board Statement Consent: Patient sample collection: All autopsies are performed with consent of next of kin and permission for retention and research use of tissue. Randomization not detected. Blinding not detected. Power Analysis not detected. Sex as a biological variable not detected. Table 2: Resources
Antibodies Sentences Resources Samples were stained with immunofluorescent antibodies for CD68, CD45, PanCK, and DNA (Syto-13). CD68suggested: NoneCD45suggested: NoneAntibody Panel including (TMPRSS2, clone EPR3861; ACE2, clone EPR4436; Cathepsin L/V/K/H, clone EPR8011; DDX5, clone EPR7239; and SARS-CoV-2 spike glycoprotein, polyclonal); Abeam; ab273594, Lot# GR3347471-1 GeoMx Solid Tumor TME Morphology Kit; Nanostring Technologies, Inc.; GMX-PRO-MORPH-HST-12; Item 121300310 Alexa Fluor® 647 alpha-Smooth Muscle Actin Antibody, clone 1A4; Novus Bio; IC1420R Nanostring morphological and staining panels are pre-validated by the manufacturer: https://www.nanostring.com/download_file/view/2872/8714 Morphological markers were previously demonstrated in human tissue in https://doi.org/10.1101/2020.08.25.267336 qRT-PCR: Total RNA was extracted in TRIzol (Invitrogen) according to the manufacturer’s instructions. TMPRSS2suggested: (Thermo Fisher Scientific Cat# PA5-96019, RRID:AB_2807821)SARS-CoV-2 spike glycoproteinsuggested: NoneMuscle Actin Antibody ,suggested: NoneSoftware and Algorithms Sentences Resources Cell deconvolution of the GeoMx data was performed using the SpatialDecon R package38. SpatialDeconsuggested: NoneGene set enrichment analysis (GSEA)39 was performed to qualify coordinate gene expression changes quantified during differential expression analysis. Gene set enrichment analysissuggested: (Gene Set Enrichment Analysis, RRID:SCR_003199)Final libraries were quantified using fluorescent-based assays including PicoGreen (Life Technologies) or Qubit Fluorometer (invitrogen) and Fragment Analyzer (Advanced Analytics) and sequenced on a NovaSeq 6000 sequencer (v1 chemistry) with 2×150bp targeting 60M reads per sample. PicoGreensuggested: NoneThis workflow involved quality control of the reads with FastQC42, adapter trimming using Trim Galore! Trim Galoresuggested: (Trim Galore, RRID:SCR_011847)(https://github.com/FelixKrueger/TrimGalore), read alignment with STAR43, gene quantification with Salmon44, duplicate read marking with Picard MarkDuplicates (https://github.com/broadinstitute/picard), and transcript quantification with StringTie45. Picardsuggested: (Picard, RRID:SCR_006525)Other quality control measures included RSeQC, Qualimap, and dupRadar. RSeQCsuggested: (RSeQC, RRID:SCR_005275)Qualimapsuggested: (QualiMap, RRID:SCR_001209)FeatureCounts reads were normalized using variance-stabilizing transform (vst) in DESeq2 package in R for visualization purposes in log-scale46. FeatureCountssuggested: (featureCounts, RRID:SCR_012919)Cell deconvolution was performed using MuSiC on single cell reference datasets for lung, liver, kidney, and heart47–51. MuSiCsuggested: (MuSiC, RRID:SCR_008792)Differential expression of genes was calculated by DESeq2. DESeq2suggested: (DESeq, RRID:SCR_000154)Briefly, Salmon isoform count matrices from every sample were imported using importRdata59, using Gencode v33 exon annotations and nucleotide sequences. Gencodesuggested: (GENCODE, RRID:SCR_014966)Results from OddPub: Thank you for sharing your data.
Results from LimitationRecognizer: An explicit section about the limitations of the techniques employed in this study was not found. We encourage authors to address study limitations.Results from TrialIdentifier: No clinical trial numbers were referenced.
Results from Barzooka: We did not find any issues relating to the usage of bar graphs.
Results from JetFighter: We did not find any issues relating to colormaps.
Results from rtransparent:- Thank you for including a conflict of interest statement. Authors are encouraged to include this statement when submitting to a journal.
- Thank you for including a funding statement. Authors are encouraged to include this statement when submitting to a journal.
- No protocol registration statement was detected.
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