Parallel use of human stem cell lung and heart models provide insights for SARS-CoV-2 treatment


Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) primarily infects the respiratory tract, but pulmonary and cardiac complications occur in severe coronavirus disease 2019 (COVID-19). To elucidate molecular mechanisms in the lung and heart, we conducted paired experiments in human stem cell-derived lung alveolar type II (AT2) epithelial cell and cardiac cultures infected with SARS-CoV-2. With CRISPR-Cas9-mediated knockout of ACE2, we demonstrated that angiotensin-converting enzyme 2 (ACE2) was essential for SARS-CoV-2 infection of both cell types but that further processing in lung cells required TMPRSS2, while cardiac cells required the endosomal pathway. Host responses were significantly different; transcriptome profiling and phosphoproteomics responses depended strongly on the cell type. We identified several antiviral compounds with distinct antiviral and toxicity profiles in lung AT2 and cardiac cells, highlighting the importance of using several relevant cell types for evaluation of antiviral drugs. Our data provide new insights into rational drug combinations for effective treatment of a virus that affects multiple organ systems. Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.

Authors Rudraraju R, Gartner MJ, Neil JA, Stout ES, Chen J, Needham EJ, See M, Mackenzie-Kludas C, Yang Lee LY, Wang M, Pointer H, Karavendzas K, Abu-Bonsrah D, Drew D, Yang Sun YB, Tan JP, Sun G, Salavaty A, Charitakis N, Nim HT, Currie PD, Tham WH, Porrello E, Polo JM, Humphrey SJ, Ramialison M, Elliott DA, Subbarao K
Journal Stem cell reports
Publication Date 2023 Jun 13;18(6):1308-1324
PubMed 37315523
PubMed Central PMC10262339
DOI 10.1016/j.stemcr.2023.05.007

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