Objectives : Paeonia lactiflora Pallas (PLP) have been reported to have pharmacological effects such as anti-inflammatory and analgesic. However, it is not yet known whether PLP extract has anti-inflammatory effect on HaCaT cells, human keratinocyte. Methods : To confirm the anti-inflammatory effect of PLP on keratinocyte, TNF-𝛼/IFN-𝛾-stimulated HaCaT cells were used. HaCaT cells were pre-treated with PLP for 1h before stimulation with TNF-𝛼/IFN-𝛾. Then HaCaT cells were stimulated with TNF-𝛼/IFN-𝛾 for 24 h, the cells and media were harvested to measure the inflammatory cytokines levels. Granulocyte-macrophage colony stimulating factor (GM-CSF), monocyte chemoattractant protein-1 (MCP-1), interleukin 1 beta (IL-1𝛽), and TNF-𝛼 were analyzed by enzyme-linked immunosorbent assay (ELISA), and the mRNA expression of thymus and activation-regulated chemokines (TARC), IL-6, and IL-8 were measured by reverse transcription-polymerase chain reaction (RT-PCR). We also investigated the inhibitory mechanism of the mitogen-activated protein kinase (MAPKs) including ERK, JNK, and p38 and nuclear factor-kappaB (NF-𝜅B) by PLP using western blot. Results : PLP did not show cytotoxicity in HaCaT cells. In TNF-𝛼/IFN-𝛾-stimulated HaCaT cells, PLP significantly inhibited the expression of GM-CSF, MCP-1 IL-1𝛽, TNF-𝛼, TARC and IL-6. PLP inhibited the phosphorylation of ERK and translocation of NF-𝜅B into the nucleus. Conclusions : These results indicate that PLP could ameliorate the TNF-𝛼/IFN-𝛾-stimulated inflammatory response through inhibition of MAPK and NF-kB signal pathway. This suggests that PLP could be used beneficial agent to improve skin inflammation.
Lim, Jin Gyu;Lee, Da Hye;Oh, Kyung Jin;Choi, Sujin;Song, Young Hwan;Lee, Joowon;Lee, Hyunju
Pediatric Infection and Vaccine
/
v.28
no.3
/
pp.173-180
/
2021
After initial reports of multisystem inflammatory syndrome in children (MIS-C) in April 2020 in Europe, this disease has been known to occur in children with recent history of coronavirus disease 2019 (COVID-19) and most cases have been reported in Europe and the Unites States of America. We report a case of a 14-year-old girl who was diagnosed with MIS-C with acute myocarditis and successfully treated with intravenous immunoglobulin (IVIG), methylprednisolone, and anakinra. At initial presentation, she had persistent high fever, generalized rash, generalized swelling, abdominal pain, and low blood pressure. She showed a remarkably elevated level of inflammation and cardiac enzyme markers and had a previous history of COVID-19 5 weeks before the initial presentation. After extensive work up, other infectious and non-infectious causes were excluded. She was diagnosed with MIS-C and initially treated with IVIG and high-dose methylprednisolone; however, despite treatment, her heart function deteriorated and coronary artery dilatation progressed. Therefore, anakinra, an interleukin-1 receptor antagonist, was administered on hospital day 6, after which her cardiac function exhibited improvement. She was discharged on hospital day 19 without any symptoms, and follow-up echocardiography after 1 month revealed fully recovered heart function with normal coronary arteries.
Objective: This study was conducted to evaluate the effects of medium chain triglycerides (MCT) with organic acids (OA) on growth performance, fecal score, blood profiles, intestinal morphology, and nutrient digestibility in weaning pigs. Methods: A total of 120 weaning pigs ([Yorkshire×Landrace]×Duroc) with an average body weight (BW) of 8.00±0.87 kg were assigned in five treatments considering sex and initial BW in 3 replications with 8 pigs per pen in a randomized complete block design. The experimental diets included a corn-soybean meal based basal diet with or without 0.1% or 0.2% MCT and 0.1% OA. The pigs were fed the diets for 5 weeks (phase 1, 0 to 2 weeks; phase 2, 3 to 5 weeks). A total of 15 barrows with an average BW of 12.48±0.37 kg were used to evaluate the nutrient digestibility by total collection method. The BW and feed intake were measured at the end of each phase. Blood samples and small intestine samples were collected at the end of each phase, too. Results: Supplementing 0.1% MCT with 0.1% OA showed greater BW for week 5 and average daily gain (ADG) for overall period than control diet. Supplementing 0.1% MCT increased (p<0.05) ADG and improved (p<0.05) gain:feed ratio for phase 1. Dietary MCT and OA did not affect the fecal score and blood concentration of cortisol, immunoglobulin G, tumor necrosis factor-α, interleukin-1β (IL-1β), IL-6, and IL-10 in weaning pigs. Pigs fed the diets with 0.1% MCT had greater (p<0.05) villus height of duodenum and ileum for phase 1. Also, pigs fed the diet with 0.1% OA showed greater (p<0.05) villus height and villus height to crypt depth ratio of duodenum for phase 2. There was no significant difference in nutrient digestibility and nitrogen retention of pigs. Conclusion: Addition of 0.1% MCT with 0.1% OA in weaning pig's diet improved growth performance partly by enhancing intestinal morphology in weaning pigs.
BACKGROUND/OBJECTIVES: Previous studies have reported that protein supplementation contributes to the attenuation of inflammation. Serious trauma such as burn injury usually results in the excessive release of inflammatory factors and organs dysfunction. However, a few reports continued to focus on the function of protein ingestion in regulating burn-induced inflammation and organ dysfunction. MATERIALS/METHODS: This study established the rat model of 30% total body surface area burn injury, and evaluated the function of blended protein (mixture of whey and soybean proteins). Blood routine examination, inflammatory factors, blood biochemistry, and immunohistochemical assays were employed to analyze the samples from different treatment groups. RESULTS: Our results indicated a decrease in the numbers of white blood cells, monocytes, and neutrophils in the burn injury group administered with the blended protein nutritional support (Burn+BP), as compared to the burn injury group administered normal saline supplementation (Burn+S). Expressions of the pro-inflammatory factors (tumor necrosis factor-α and interleukin-6 [IL-6]) and chemokines (macrophage chemoattractant protein-1, regulated upon activation normal T cell expressed and secreted factor, and C-C motif chemokine 11) were dramatically decreased, whereas anti-inflammatory factors (IL-4, IL-10, and IL-13) were significantly increased in the Burn+BP group. Kidney function related markers blood urea nitrogen and serum creatinine, and the liver function related markers alanine transaminase, aspartate aminotransferase, alkaline phosphatase, and lactate dehydrogenase were remarkably reduced, whereas albumin levels were elevated in the Burn+BP group as compared to levels obtained in the Burn+S group. Furthermore, inflammatory cells infiltration of the kidney and liver was also attenuated after burn injury administered with blended protein supplementation. CONCLUSIONS: In summary, nutritional support with blended proteins dramatically attenuates the burn-induced inflammatory reaction and protects organ functions. We believe this is a new insight into a potential therapeutic strategy for nutritional support of burn patients.
Jung, Min Jae;Noh, Hui Jeong;Choi, Ji Min;Jeon, Seok Hee;Kim, Seon Jong
Journal of Korean Medicine Rehabilitation
/
v.32
no.4
/
pp.9-18
/
2022
Objectives This study was conducted to confirm the anti-inflammatory effect of Naetakbaekryeom-san (NTB), and whether it could be another treatment for inflammatory diseases. Methods The NTB water extract was extracted with hot water at 100℃ for 2 hours, concentrated at 80℃ under reduced pressure, and used. After 2 hours of pretreatment with NTB and positive control Bay11-7082, nitric oxide (NO), inducible NO synthase (iNOS), interleukin (IL)-6, IL-1𝛽, tumor necrosis factor alpha (TNF-𝛼) were measured in RAW264.7 cells activated with lipopolysaccharides (LPS) 500 ng/mL. After 2 hours of pretreatment with NTB, the anti-inflammatory effect of NTB was evaluated by measuring nuclear factor kappa-light-chain-enhancer of activated B cells (NF-𝜅B) in RAW264.7 cells and 293T cells activated with phorbol 12-myristate 13-acetic acid (PMA) 30 ng/mL. Results In RAW264.7 cells activated with LPS, NTB at concentrations of 0.1, 0.3, and 1.0 mg/mL showed no cytotoxicity, significantly inhibited NO production and inhibition of iNOS expression. TNF-𝛼 cytokine levels was not regulated, but NTB at each concentration inhibited the production of IL-1𝛽 and IL-6, and the effect was higher than that of the positive control Bay11-7082 (20 𝜇M). In PMA-activated RAW264.7 cells and 293T cells, each concentration of NBT decreased the NF-𝜅B transcriptional activity, with the greatest decrease at 1 mg/mL. Conclusions These results demonstrated the anti-inflammatory effect of NTB water extracts, but further studies such as comparison of anti-inflammatory effects and antioxidant effects by NTB component, comparison of effects according to extraction solvents, and clinical studies are needed.
Ji-Won, Park;Jin-Mi, Park;Sangmi, Eum;Jung Hee, Kim;Jae Hoon, Oh;Jinseon, Choi;Tran The, Bach;Nguyen, Van Sinh;Sangho, Choi;Kyung-Seop, Ahn;Jae-Won, Lee
Microbiology and Biotechnology Letters
/
v.50
no.4
/
pp.574-583
/
2022
Ficus vasculosa Wall. ex Miq. (FV) has been used as a herbal medicine in Southeast Asia and its antioxidant activity has been shown in previous studies. However, it has not yet been elucidated whether FV exerts anti-inflammatory effects on activated-macrophages. Thus, we aimed to evaluate the ameliorative property of FV methanol extract (FM) on lipopolysaccharide (LPS)-induced inflammatory responses and the underlying molecular mechanisms in RAW264.7 macrophages. The experimental results indicated that FM decreased the production of inflammatory mediators (NO/PGE2) and the mRNA/protein expression of iNOS and COX-2 in LPS-stimulated RAW264.7 cells. FM also reduced the secretion of interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α and monocyte chemoattractant protein (MCP)-1 in LPS-stimulated RAW264.7 cells. Results also demonstrated that FM improved inflammatory response in LPS-stimulated A549 airway epithelial cells by inhibiting the production of cytokines, such as IL-1β, IL-6 and TNF-α. In addition, FM suppressed MAPK activation and NF-κB nuclear translocation induced by LPS. FM also upregulated the mRNA/protein expression levels of heme oxygenase-1 and the nuclear translocation of nuclear factor erythroid 2-related factor 2 in RAW264.7 cells. In an experimental animal model of LPS-induced acute lung injury, the increased levels of molecules in bronchoalveolar lavage (BAL) fluid were suppressed by FM administration. Collectively, it was founded that FM has anti-inflammatory properties on activated-macrophages by suppressing inflammatory molecules and regulating the activation of MAPK/NF-κB signaling.
Jeong Tae Kim;Chungwook Chung;Seong Ik Park;Man Hyo Lee;Joong Hee Roh;Ho Yong Sohn;Jong Sik Kim
Journal of Life Science
/
v.33
no.1
/
pp.73-81
/
2023
In the present study, we prepared hot water extracts and the subsequent organic solvent fractions of methanol extracts of Houttuynia cordata (HC) and Lespedeza cuneata (LC), and investigated their anti-inflammatory effects on lipopolysaccharide-stimulated RAW264.7 cells. Among the treated samples, hexane, chloroform, and ethyl-acetate fractions of HC and LC inhibited nitric oxide (NO) production in a dose-dependent manner, and decreased inducible nitric oxide synthase (iNOS) protein expression. And, we analyzed the flavonoid contents of the ethyl-acetate fraction of HC and LC, and chose apigenin for the further experiments because apigenin was one of flavonoids commonly found in HC and LC. Apigenin dramatically inhibited NO production in a dose-dependent manner without affecting cell viability and decreased iNOS and cyclooxygenase-2 (COX-2) expression. In addition, apigenin suppressed the phosphorylation of p38 and Jun N-terminal kinase (JNK) indicating that apigenin exerts anti-inflammatory activity via the mitogen-activated protein kinase (MAPK) signaling pathway. Subsequently, we conducted RNA-sequencing analysis to detect differentially expressed genes upon apigenin treatment. Among the down-regulated genes, four cytokine genes (interleukin (IL)-1α, IL-1β, IL-6, and colony stimulating factor 2 (CSF2)) were selected for the further analysis, and the reduction of their expression by apigenin was confirmed with quantitative real-time polymerase chain reaction. Overall, our results suggest that Houttuynia cordata and Lespedeza cuneata have the anti-inflammatory effects and apigenin can be the one of key molecules responsible for their anti-inflammatory activities.
Objectives : The purpose of this study was to investigate the anti-inflammatory effects of extract from Trogopterorum Faeces (TF) on the RAW 264.7 cells. Methods : To prove the TF's anti-inflammatory effects, we investigated nitric oxide (NO) production and own cell viability. We examined the cytokine productions on lipopolysacchride (LPS)-induced RAW 264.7 cells and also cellular regulatory mechanisms. Results : TF does not have any cytotoxic effect. TF reduced LPS-induced NO production, interleukin (IL)-1b, IL-6, IL-10 and tumor necrosis factor-a (TNF-a) in RAW 264.7 cells. TF inhibited the activation of mitogen-activated protein kinases (MAPKs) such as p38, extracelluar signal-regulated kinase (ERK 1/2) and c-Jun NH2-terminal kinase (JNK) and also the degradation of inhibitory kappa B a (Ik-Ba) in the LPS-stimulated RAW 264.7 cells. TF reduced the serum levels of IL-1b, IL-6, TNF-a. The survival rate of LPS-induced endotoxin shock was increased by TF administration. Conclusions : TF down-regulated LPS-induced NO and cytokines production, which could provide a clinical basis for anti-inflammatory properties.
Hag Soon Choi;Hyun Joo Kim;Hark Song Lee;Seung Won Paik;Ji Eun Kim;Yung Sun Song
The Journal of Korean Medicine
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v.44
no.2
/
pp.119-131
/
2023
Objectives: Betula Platyphylla(BP) has been used as a analgesic, anti-microbial, anti-oxidant drug in Eastern Asia. However, it is still unknown whether BP ethanol extract could exhibit the inhibitory activities against ultraviolet B(UVB)-induced skin injury on human keratinocytes, HaCaT cells. This study was aimed to investigate the protective activity of BP ethanol extract on UVB-irradiated skin injury in HaCaT cells. Methods: The skin injury model of HaCaT cells was established under UVB stimulation. HaCaT keratinocyte cells were pre-treated with BP ethanol extract for 1 h, and then stimulated with UVB. Then, the cells were harvested to measure the cell viability, production of reactive oxygen species(ROS), pro-inflammatory cytokines such as interleukin(IL) 1-beta, IL-6, and tumor necrosis factor(TNF)-𝛼, hyaluronidase, type 1 collagen, matrix metalloproteinase(MMP)s. In addition, we examined the mitogen activated protein kinases(MAPKs) and inhibitory kappa B alpha(I𝜅;-B𝛼) as inhibitory mechanisms of BP ethanol extract. Results: The treatment of BP ethanol extract inhibited the UVBinduced cell death and ROS production in HaCaT cells. BP ethanol extract treatment inhibited the UVB-induced increase of IL-1beta, IL-6, and TNF-𝛼. BP ethanol extract treatment inhibited the increase of hyaluronidase, MMP and decrease of collagen. BP ethanol extract treatment inhibited the activation of MAPKs and the degradation of I𝜅-B𝛼. Conclusions: Our result suggest that treatment of BP ethanol extract could inhibit the UVB-induced skin injury via deactivation of MAPKs and nuclear factor kappa B(NF-𝜅B) in HaCaT cells. This study could suggest that BP ethanol extract could be a beneficial agent to prevent skin damage or inflammation.
Junkyu Park;Mina Boo;Soojin An;Sujin Shin;Jinbong Park;Ho-Young Choi;Kyungjin Lee
The Korea Journal of Herbology
/
v.38
no.4
/
pp.21-29
/
2023
Background : The purpose of this study was to investigate the anti-inflammatory properties of stems and leaves of Eleutherococcus senticosus (Rupr. & Maxim.) Maxim. (ES) from Gangwon-do. Methods and Results : Stems and leaves of ES were collected from two areas in Gangwon-do: Cheorwon-gun and Samcheok-si. Samples were extracted with water by using the pressurized liquid extraction method and with 70% prethanol A by using the heat reflux extraction method. The anti-inflammatory effects of ES were evaluated through the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoliumbromide(MTT), lactate dehydrogenase(LDH) assay, nitric oxide(NO) assay, enzyme-linked immunosorbent assay(ELISA), and Western blot analysis in RAW 264.7 macrophages stimulated with lipopolysaccharide (LPS). 1) Results showed that ES leaf extractions were not cytotoxic at a concentration of up to 30 ㎍/㎖. The leaves of 70% prethanol A extractions of ES(30 ㎍/㎖) inhibited NO, interleukin-6(IL-6), and tumor necrosis factor-α(TNF-α) production and decreased the protein level of cyclooxygenase 2(COX-2). There was no significant change in the protein level of inducible nitric oxide synthase(iNOS). The stem extractions of ES did not exhibit anti-inflammatory effects. Conclusions : In this study, the leaves of 70% prethanol A extractions of ES demonstrated anti-inflammatory effect on RAW 264.7 macrophages. The 70% prethanol A extractions have a relatively higher anti-inflammatory effect on RAW 264.7 macrophages than water extractions.
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