HomeA novel ACE2 isoform is expressed in human respiratory epithelia and is upregulated in response to interferons and RNA respiratory virus infection January 18, 2021 print this article A novel ACE2 isoform is expressed in human respiratory epithelia and is upregulated in response to interferons and RNA respiratory virus infection Blume et al.; Nat Genet. 2021 Feb;53(2):205-214