Which of the following sentences haveNOissues with word choice? IL-6 does pivotal roles in adjusting the functions of various immune cells and is involved in the pathogenesis of many autoimmune diseases To understand the potential mechanisms underlying IL-21-enhanced TL.R-mediated cytokine and chemokine expression in THP-1 cells, we studied IL-21 and TLR2/4-related downstream signaling pathways Depleted oil reserves and surges in greenhouse gas emissions have generated a keen interest in sustainable energy worldwide. Stattic was shown to selectively inhibit the function of the STAT3 SH2 domain without regarding the STAT3 activation state in vitro.