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Comment
. 2020 Jun;97(6):1091-1093.
doi: 10.1016/j.kint.2020.04.009. Epub 2020 Apr 14.

Blockade of SARS-CoV-2 infection by recombinant soluble ACE2

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Comment

Blockade of SARS-CoV-2 infection by recombinant soluble ACE2

Francois Alhenc-Gelas et al. Kidney Int. 2020 Jun.
No abstract available

Keywords: ACE2; COVID-19; renin-angiotensin system; viral infection.

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Figures

Figure 1
Figure 1
Schematic of the renin-angiotensin system and the possible roles of SARS-CoV-2 binding to ACE2 in COVID-19. (Left, middle) The physiological steps of the generation of angiotensin II and angiotensin 1-7 and their actions on specific receptors are shown. Angiotensin II is generated from angiotensinogen by the actions of renin and subsequently anchored to ACE in the cell membrane. ACE2, another transmembrane enzyme, removes the carboxyterminal amino acid of angiotensin II, thereby inactivating angiotensin II but generating angiotensin 1-7 with biological activity distinct from angiotensin II. Angiotensin 1-7 activates the Mas receptor. (Right) The interaction of circulating SARS-CoV-2 with ACE2 is depicted. Membrane-bound ACE2 serves as the exclusive (or at least main) SARS-CoV-2 receptor, allowing host cell entry and infection via virus binding to the S1 domain of the viral Spike protein. In addition to its full-length transmembranous form, ACE2 also exists in soluble form (sACE2) in the circulation, lacking its membranous anchor. According to recent studies, increasing bioavailability of sACE2 by administering recombinant human sACE2 may act as a virus trap and inactivator.,

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