Research Article

PMA Induces Vaccine Adjuvant Activity by the Modulation of TLR Signaling Pathway

Figure 1

Croton tiglium and its chloroform fraction induced NF- B transcription in TLR5-independent manner and increased the FlaB activity. (a) 90% EtOH extract of Croton tiglium increased FlaB-mediated transcription. HEK293T cells transiently transfected with pNF- B-SEAP and phTLR5 were treated with FlaB and 90% EtOH extract of Croton tiglium for 1 day. SEAP activities were determined in the cell culture supernatants using QUANTI-Blue. 90% EtOH extract of Croton tiglium induced NF- B transcription in TLR5-independent manner and increased the FlaB activity. (b) The chloroform fraction of Croton tiglium increased NF- B transcription. The chloroform fraction of Croton tiglium increased significantly NF- B transcription in HEK293T cells transiently transfected with pNF- B-SEAP and phTLR5 regardless of TLR5. The data indicate the mean and SEM from three experiments ( , ∗∗ , ∗∗∗ ).
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