PMID- 30637903 OWN - NLM STAT- MEDLINE DCOM- 20190611 LR - 20210109 IS - 1099-1573 (Electronic) IS - 0951-418X (Print) IS - 0951-418X (Linking) VI - 33 IP - 3 DP - 2019 Mar TI - Isoforskolin and forskolin attenuate lipopolysaccharide-induced inflammation through TLR4/MyD88/NF-kappaB cascades in human mononuclear leukocytes. PG - 602-609 LID - 10.1002/ptr.6248 [doi] AB - The principal active component of isoforskolin (ISOF) is from the plant Coleus forskohlii, native to China, which has attracted much attention for its biological effects. We hypothesize that ISOF and forskolin (FSK) pretreatment attenuates inflammation induced by lipopolysaccharide (LPS) related to toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88), and nuclear factor kappa B (NF-kappaB) signaling. Mononuclear leukocytes (MLs) from healthy donors' blood samples were separated by using density gradient centrifugation. Protein levels of TLR4, MyD88, and NF-kappaB were detected using western blot and inflammatory cytokines interleukin (IL) 1beta, IL-2, IL-6, IL-21, IL-23, tumor necrosis factor (TNF) alpha, and TNF-beta were tested by enzyme-linked immunosorbent assay and Quantibody array in MLs. Our results showed that LPS augmented the protein levels of TLR4, MyD88, and NF-kappaB in MLs and the production of IL-1beta, IL-2, IL-6, IL-21, IL-23, TNF-alpha, and TNF-beta in supernatants of MLs. Despite treatment with ISOF and FSK prior to LPS, the protein levels of TLR4, MyD88, NF-kappaB, IL-1beta, IL-2, IL-6, IL-21, IL-23, TNF-alpha, and TNF-beta in MLs were apparently decreased. roflumilast (RF) and dexamethasone (DM) had a similar effect on MLs with ISOF and FSK. Our results, for the first time, have shown that ISOF and FSK attenuate inflammation in MLs induced by LPS through down-regulating protein levels of IL-1beta and TNF-alpha, in which TLR4/MyD88/NF-kappaB signal pathway could be involved. CI - (c) 2019 The Authors Phytotherapy Research Published by John Wiley & Sons Ltd. FAU - Du, Xiaohua AU - Du X AUID- ORCID: 0000-0003-1777-024X AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. AD - First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Shi, Rui AU - Shi R AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. FAU - Wang, Youlan AU - Wang Y AD - Kunming Medical Science Research Institute, Kunming, China. FAU - Wu, Wenjuang AU - Wu W AD - Second Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Sun, Shibo AU - Sun S AD - First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Dai, Zelan AU - Dai Z AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. FAU - Chen, Chen AU - Chen C AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. FAU - Weng, Zhiying AU - Weng Z AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. FAU - Li, Xian AU - Li X AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. FAU - Liu, Qian AU - Liu Q AD - First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Zhang, Liyan AU - Zhang L AD - First Affiliated Hospital of Kunming Medical University, Kunming, China. FAU - Saidian, Mayer AU - Saidian M AD - Beckman Laser Institute, University of California, Irvine, California. AD - The Institute for Drug Research, School of Pharmacy, Hebrew University of Jerusalem, Jerusalem, Israel. FAU - Yang, Weimin AU - Yang W AUID- ORCID: 0000-0001-7505-7122 AD - School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China. LA - eng GR - No.ZD2015009 and 2015C009Y/Yunnan Provincial Department of Education/ GR - 2017FA043/Yunnan Provincial Science and Technology Department/ GR - 2014BC012/Yunnan Provincial Science and Technology Department/ GR - 2014IA033/Yunnan Provincial Science and Technology Department/ GR - 2017FE467-028/Yunnan Provincial Science and Technology Department/ GR - 2017FE467-019/Yunnan Provincial Science and Technology Department/ GR - 2018FE001-026/Yunnan Provincial Science and Technology Department/ GR - 2017IC041/Yunnan Provincial Science and Technology Department/ GR - 81860012/National Natural Science Foundation of China/ GR - 81402991/National Natural Science Foundation of China/ GR - 81560589/National Natural Science Foundation of China/ GR - 81173110/National Natural Science Foundation of China/ GR - 81870037/National Natural Science Foundation of China/ PT - Journal Article DEP - 20190114 PL - England TA - Phytother Res JT - Phytotherapy research : PTR JID - 8904486 RN - 0 (Cytokines) RN - 0 (Lipopolysaccharides) RN - 0 (MYD88 protein, human) RN - 0 (Myeloid Differentiation Factor 88) RN - 0 (NF-kappa B) RN - 0 (TLR4 protein, human) RN - 0 (Toll-Like Receptor 4) RN - 1F7A44V6OU (Colforsin) SB - IM MH - Colforsin/*pharmacology MH - Cytokines/analysis MH - Humans MH - Inflammation/*drug therapy MH - Leukocytes, Mononuclear/*drug effects/metabolism MH - Lipopolysaccharides/toxicity MH - Myeloid Differentiation Factor 88/*physiology MH - NF-kappa B/*physiology MH - Signal Transduction/*drug effects MH - Toll-Like Receptor 4/*physiology PMC - PMC6590664 OTO - NOTNLM OT - FSK OT - ISOF OT - MyD88 OT - NF-kappaB OT - TLR4 OT - inflammation COIS- The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The authors state no conflict of interest. EDAT- 2019/01/15 06:00 MHDA- 2019/06/14 06:00 PMCR- 2019/06/24 CRDT- 2019/01/15 06:00 PHST- 2018/02/03 00:00 [received] PHST- 2018/11/02 00:00 [revised] PHST- 2018/11/12 00:00 [accepted] PHST- 2019/01/15 06:00 [pubmed] PHST- 2019/06/14 06:00 [medline] PHST- 2019/01/15 06:00 [entrez] PHST- 2019/06/24 00:00 [pmc-release] AID - PTR6248 [pii] AID - 10.1002/ptr.6248 [doi] PST - ppublish SO - Phytother Res. 2019 Mar;33(3):602-609. doi: 10.1002/ptr.6248. Epub 2019 Jan 14.