id author title date pages extension mime words sentences flesch summary cache txt cord-324495-0pee1i3o Kang, Hyeonjeong Sasa quelpaertensis Nakai extract suppresses porcine reproductive and respiratory syndrome virus replication and modulates virus-induced cytokine production 2015-06-06 .txt text/plain 6119 300 49 Therefore, the present study was conducted to determine whether Sasa quelpaertensis Nakai extract (SQE) inhibits PRRSV infection in cultured porcine alveolar macrophages (PAMs). Further experiments revealed that SQE suppresses post-entry steps in the replication cycle of PRRSV, including viral genomic and sg RNA synthesis, viral protein expression, and virus production. The presence of SQE notably altered expression of cytokine genes in PRRSV-infected PAM cells, suggesting that SQE activity is involved in the modulation of inflammatory responses during viral infection. As shown in Fig. 5 , SQE treatment resulted in a maximal reduction in the synthesis of PRRSV genomic RNA and sg mRNA of 90 % and 80 %, respectively, at a concentration of 5 mg/ ml, when compared with untreated infected cells. Treatment of cells with SQE resulted in significant inhibition of post-entry steps during the replication of PRRSV, as demonstrated by reduced progeny production, diminished viral protein expression, and reduced synthesis of genomic RNA and sg mRNA. ./cache/cord-324495-0pee1i3o.txt ./txt/cord-324495-0pee1i3o.txt