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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Commun 2021 ; 12 (1): 1346 Nephropedia Template TP
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S-Trimer, a COVID-19 subunit vaccine candidate, induces protective immunity in nonhuman primates #MMPMID33649323
Liang JG; Su D; Song TZ; Zeng Y; Huang W; Wu J; Xu R; Luo P; Yang X; Zhang X; Luo S; Liang Y; Li X; Huang J; Wang Q; Huang X; Xu Q; Luo M; Huang A; Luo D; Zhao C; Yang F; Han JB; Zheng YT; Liang P
Nat Commun 2021[Mar]; 12 (1): 1346 PMID33649323show ga
SARS-CoV-2 is the underlying cause for the COVID-19 pandemic. Like most enveloped RNA viruses, SARS-CoV-2 uses a homotrimeric surface antigen to gain entry into host cells. Here we describe S-Trimer, a native-like trimeric subunit vaccine candidate for COVID-19 based on Trimer-Tag technology. Immunization of S-Trimer with either AS03 (oil-in-water emulsion) or CpG 1018 (TLR9 agonist) plus alum adjuvants induced high-level of neutralizing antibodies and Th1-biased cellular immune responses in animal models. Moreover, rhesus macaques immunized with adjuvanted S-Trimer were protected from SARS-CoV-2 challenge compared to vehicle controls, based on clinical observations and reduction of viral loads in lungs. Trimer-Tag may be an important platform technology for scalable production and rapid development of safe and effective subunit vaccines against current and future emerging RNA viruses.