PMID- 27471359 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20160729 LR - 20201001 IS - 1011-6842 (Print) IS - 1011-6842 (Linking) VI - 32 IP - 4 DP - 2016 Jul TI - Gentiana scabra Reduces SR-A Expression and Oxidized-LDL Uptake in Human Macrophages. PG - 460-6 AB - BACKGROUND: Macrophages can imbibe low-density lipoprotein (LDL) through scavenger receptors to become foam cells, which is critical in the initiation and progression of atherosclerosis. Mounting evidence suggests that the anti-inflammatory nature of Chinese herbs have the capacity to halt the complex mechanisms underlying atherosclerosis. This study examined the effects of Chinese herbs on foam cell formation. METHODS: Chinese herbs were obtained from the Sun Ten pharmaceutic company. Using oxidized LDL (OxLDL) uptake and a cell toxicity assay, we screened more than 30 types of Chinese herbs. Western blotting was used to determine expressions of scavenger receptors (SRs) and extracellular-signal-regulated kinase (ERK) activities. RESULTS: We found that Gentiana scabra reduced oxidized LDL uptake effectively in THP-1 macrophages (p < 0.05 vs. OxLDL treated control). Moreover, treatment with Gentiana scabra in THP-1 macrophages resulted in decreased expression of scavenger receptor- A (SR-A) (p < 0.05 vs. control). Molecular investigation revealed that Gentiana scabra inhibited SR-A protein expression, possibly by regulating ERK signaling pathways (p < 0.05 vs. control). CONCLUSIONS: By regulating SR-A expression, Gentiana scabra reduced oxidized LDL uptake in human macrophages. These results support the potential use of Gentiana scabra in treating atherosclerosis. FAU - Lin, Chin-Sheng AU - Lin CS AD - Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; FAU - Liu, Pang-Yen AU - Liu PY AD - Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; FAU - Lian, Chen-Hao AU - Lian CH AD - Division of General Laboratory, Ministry of Health and Welfare, KinMen Hospital, Kinmen; FAU - Lin, Ching-Heng AU - Lin CH AD - Best Health Chinese Medicine Clinic, Taipei; FAU - Lai, Jenn-Haung AU - Lai JH AD - Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Tao-Yuan; FAU - Ho, Ling-Jun AU - Ho LJ AD - Institute of Cellular and System Medicine, National Health Research Institute, Zhunan, Taiwan. FAU - Yang, Shih-Ping AU - Yang SP AD - Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; FAU - Cheng, Shu-Meng AU - Cheng SM AD - Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; LA - eng PT - Journal Article PL - China (Republic : 1949- ) TA - Acta Cardiol Sin JT - Acta Cardiologica Sinica JID - 101687085 PMC - PMC4963422 OTO - NOTNLM OT - Atherosclerosis OT - Foam cells OT - Gentiana scabra OT - Macrophage OT - Oxidized LDL EDAT- 2016/07/30 06:00 MHDA- 2016/07/30 06:01 PMCR- 2016/07/01 CRDT- 2016/07/30 06:00 PHST- 2016/07/30 06:00 [entrez] PHST- 2016/07/30 06:00 [pubmed] PHST- 2016/07/30 06:01 [medline] PHST- 2016/07/01 00:00 [pmc-release] AID - 10.6515/acs20150416a [doi] PST - ppublish SO - Acta Cardiol Sin. 2016 Jul;32(4):460-6. doi: 10.6515/acs20150416a.