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E. fischeriana Root Compound Dpo Activates Antiviral Innate Immunity.


ABSTRACT: E. fischeriana has long been used as a traditional Chinese medicine. Recent studies reported that some compounds of E. fischeriana exhibited antimicrobial and immune enhance activity. Innate immune system is essential for the immune surveillance of inner and outer threats, initial host defense responses and immune modulation. The role of natural drug compounds, including E. fischeriana, in innate immune regulation is largely unknown. Here we demonstrated that E. fischeriana compound Dpo is involved in antiviral signaling. The genome wide RNA-seq analysis revealed that the induction of ISGs by viral infection could be synergized by Dpo. Consistently, Dpo enhanced the antiviral immune responses and protected the mice from death during viral infection. Dpo however was not able to rescue STING deficient mice lethality caused by HSV-1 infection. The enhancement of ISG15 by Dpo was also impaired in STING, IRF3, IRF7, or ELF4 deficient cells, demonstrating that Dpo activates innate immune responses in a STING/IRFs/ELF4 dependent way. The STING/IRFs/ELF4 axis is therefore important for Dpo induced ISGs expression, and can be used by host to counteract infection.

SUBMITTER: Chen J 

PROVIDER: S-EPMC5662903 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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E. fischeriana Root Compound Dpo Activates Antiviral Innate Immunity.

Chen Jingxuan J   Du Hongqiang H   Cui Shuang S   Liu Tong T   Yang Guang G   Sun Huaping H   Tao Weiwei W   Jiang Baoping B   Yu Li L   You Fuping F  

Frontiers in cellular and infection microbiology 20171026


E. fischeriana has long been used as a traditional Chinese medicine. Recent studies reported that some compounds of E. fischeriana exhibited antimicrobial and immune enhance activity. Innate immune system is essential for the immune surveillance of inner and outer threats, initial host defense responses and immune modulation. The role of natural drug compounds, including E. fischeriana, in innate immune regulation is largely unknown. Here we demonstrated that E. fischeriana compound Dpo is invol  ...[more]

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