Abstract
Host cellular receptors play key roles in the determination of virus tropism and pathogenesis. However, little is known about SARS-CoV-2 host receptors with the exception of ACE2. Furthermore, ACE2 alone cannot explain the multi-organ tropism of SARS-CoV-2 nor the clinical differences between SARS-CoV-2 and SARS-CoV, suggesting the involvement of other receptor(s). Here, we performed genomic receptor profiling to screen 5054 human membrane proteins individually for interaction with the SARS-CoV-2 capsid spike (S) protein. Twelve proteins, including ACE2, ASGR1, and KREMEN1, were identified with diverse S-binding affinities and patterns. ASGR1 or KREMEN1 is sufficient for the entry of SARS-CoV-2 but not SARS-CoV in vitro and in vivo. SARS-CoV-2 utilizes distinct ACE2/ASGR1/KREMEN1 (ASK) receptor combinations to enter different cell types, and the expression of ASK together displays a markedly stronger correlation with virus susceptibility than that of any individual receptor at both the cell and tissue levels. The cocktail of ASK-related neutralizing antibodies provides the most substantial blockage of SARS-CoV-2 infection in human lung organoids when compared to individual antibodies. Our study revealed an interacting host receptome of SARS-CoV-2, and identified ASGR1 and KREMEN1 as alternative functional receptors that play essential roles in ACE2-independent virus entry, providing insight into SARS-CoV-2 tropism and pathogenesis, as well as a community resource and potential therapeutic strategies for further COVID-19 investigations.
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Data availability
The receptor expression levels in each tissue were obtained from the Human Protein Atlas (https://www.proteinatlas.org/). The receptor expression levels in PBMC populations were obtained from the Human Protein Atlas (https://www.proteinatlas.org/) and Human Cell Atlas (http://immunecellatlas.net/). The receptor expression levels in stable cell lines were obtained from Cancer Cell Line Encyclopedia (https://portals.broadinstitute.org/ccle/). ScRNA-seq profiles of the upper airway tract of patients with COVID-19 and metadata were obtained from the Magellan COVID-19 Data Explorer at https://digital.bihealth.org. ScRNA-seq profiles of SARS-CoV-2 infected human bronchial epithelial cells (HBECs) in vitro were from NCBI GEO dataset GSE166766. All data supporting the findings of this study are available within the paper or in the supplementary information.
Change history
01 April 2022
A Correction to this paper has been published: https://doi.org/10.1038/s41422-022-00654-6
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Acknowledgements
We thank Cheng Cheng Zhang of UT Southwestern Medical Center and Guy Riddihough of Life Science Editors for the discussions on and revision of the paper and the staff at the BSL3 Laboratory of Fudan University for helping with the experiments. We thank Aihua Zheng of Institute of Zoology, Chinese Academy of Science, for providing replication-competent rVSV-GFP/SARS-CoV-2 S chimeric virions. This study was funded by the National Natural Science Foundation of China (81873438, 81873922, 81971921, 81830054 and 81772723, 32125013), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA16020905), the Basic Frontier Science Research Program of Chinese Academy of Sciences (No. ZDBS-LY-SM015), the National Key R&D Program of China (2020YFA0509002 and 2017YFA0505500), and the National Key Project for Infectious Diseases of China (2018ZX10301208 and 2018ZX10302207-004-002).
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Z.L., M.L., Y.X., Yun Z. and D.G. conceived the project. Y.G., XY.Z. and J.C., with help from J.Z., X.J., J.W., J.Y., X.Z., and Yun Z., performed the receptor profiling studies and the characterization of receptor-ligand interactions. M.L., H.G., J.X., X.J. and J.W. assessed the virus sensitivity of cell lines. J.C., J.H. and D.G. performed the organoid experiments. J.C., H.G. and Y.W., with help from G.S., X.J., F.L., G.H., Yuanfei Z., S.D., Yunkai Z., R.Z. and D.Q., performed the virus-related experiments. Z.L., M.L., Y.G., J.C., H.G. and Y.W. performed the bioinformatics analysis and analyzed the data. Z.L., M.L., Y.X., G.X., Yun Z. and D.G. wrote the paper.
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M.L., Z.L., Yun Z., H.G. and Y.X. are listed as inventors on a pending patent application for the newly identified S receptors described in this paper. The other authors declare no competing interests.
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Gu, Y., Cao, J., Zhang, X. et al. Receptome profiling identifies KREMEN1 and ASGR1 as alternative functional receptors of SARS-CoV-2. Cell Res 32, 24–37 (2022). https://doi.org/10.1038/s41422-021-00595-6
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DOI: https://doi.org/10.1038/s41422-021-00595-6
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