Anti-Inflammatory Principles from Tamarix aphylla L.: A Bioassay-Guided Fractionation Study

Natural products have served as primary remedies since ancient times due to their cultural acceptance and outstanding biodiversity. To investigate whether Tamarix aphylla L. modulates an inflammatory process, we carried out bioassay-guided isolation where the extracts and isolated compounds were tested for their modulatory effects on several inflammatory indicators, such as nitric oxide (NO), reactive oxygen species (ROS), proinflammatory cytokine; tumour necrosis factor (TNF-α), as well as the proliferation of the lymphocyte T-cells. The aqueous ethanolic extract of the plant inhibited the intracellular ROS production, NO generation, and T-cell proliferation. The aqueous ethanolic crude extract was partitioned by liquid-liquid fractionation using n-hexane (n-C6H6), dichloromethane (DCM), ethyl acetate (EtOAc), n-butanol (n-BuOH), and water (H2O). The DCM and n-BuOH extracts showed the highest activity against most inflammatory indicators and were further purified to obtain compounds 1–4. The structures of 3,5-dihydroxy-4’,7-dimethoxyflavone (1) and 3,5-dihydroxy-4-methoxybenzoic acid methyl ester (2) from the DCM extracts; and kaempferol (3), and 3-hydroxy-4-methoxy-(E)-cinnamic acid (4) from the n-BuOH extract were elucidated by different spectroscopic tools, including MS, NMR, UV, and IR. Compound 2 inhibited the production of ROS and TNF-α, whereas compound 3 showed inhibitory activity against all the tested mediators. A better understanding of the potential aspect of Tamarix aphylla L. derivatives as anti-inflammatory agents could open the door for the development of advanced anti-inflammatory entities.

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Anti-inflammatory Ingenane Diterpenoids from the Roots of Euphorbia kansui

Planta Medica ◽

10.1055/a-0646-4306 ◽

2018 ◽

Vol 84 (18) ◽

pp. 1334-1339 ◽

Cited By ~ 6

Author(s):

Jun-Sheng Zhang ◽

Han-Zhuang Weng ◽

Jia-Luo Huang ◽

Gui-Hua Tang ◽

Sheng Yin

Keyword(s):

Ethanolic Extract ◽

Positive Control ◽

Significant Inhibition ◽

Mechanistic Study ◽

Dependent Manner ◽

Tnf Α ◽

Euphorbia Kansui ◽

Bioassay Guided Fractionation ◽

Ic50 Values ◽

Anti Inflammatory

AbstractBioassay-guided fractionation of the ethanolic extract of the roots of Euphorbia kansui led to the isolation of two new ingenane diterpenoids, euphorkans A (1) and B (2), together with 16 known analogues (3 – 18). Their structures were determined by combined spectral and chemical methods. All the isolates were evaluated for their inhibitory effects on lipopolysaccharide-induced nitric oxide production in RAW264.7 macrophage cells. Compounds 1 – 6 and 10 – 13 exhibited pronounced inhibitory activity with IC50 values in the range of 2.78 – 10.6 µM, and were more potent than the positive control, quercetin (IC50 = 15.8 µM). Compounds 1 and 5 were selected for further assays toward the key inflammation mediators TNF-α and IL-6, and showed a significant inhibition in a dose-dependent manner. The preliminary mechanistic study revealed that 1 and 5 inhibited NF-κB activity, which may exert a role in their anti-inflammatory activity.

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Anti-Inflammatory Effect of Simonsinol on Lipopolysaccharide Stimulated RAW264.7 Cells through Inactivation of NF-κB Signaling Pathway

Molecules ◽

10.3390/molecules25163573 ◽

2020 ◽

Vol 25 (16) ◽

pp. 3573

Author(s):

Lian-Chun Li ◽

Zheng-Hong Pan ◽

De-Sheng Ning ◽

Yu-Xia Fu

Keyword(s):

Nitric Oxide ◽

Signaling Pathway ◽

Morphological Changes ◽

Raw264.7 Cells ◽

Enzyme Linked Immunosorbent Assay ◽

Tnf Α ◽

Anti Inflammatory ◽

Factor Α ◽

Oxide Synthase ◽

Necrosis Factor

Simonsinol is a natural sesqui-neolignan firstly isolated from the bark of Illicium simonsii. In this study, the anti-inflammatory activity of simonsinol was investigated with a lipopolysaccharide (LPS)-stimulated murine macrophages RAW264.7 cells model. The results demonstrated that simonsinol could antagonize the effect of LPS on morphological changes of RAW264.7 cells, and decrease the production of nitric oxide (NO), tumor necrosis factor α (TNF-α), and interleukin 6 (IL-6) in LPS-stimulated RAW264.7 cells, as determined by Griess assay and enzyme-linked immunosorbent assay (ELISA). Furthermore, simonsinol could downregulate transcription of inducible nitric oxide synthase (iNOS), TNF-α, and IL-6 as measured by reverse transcription polymerase chain reaction (RT-PCR), and inhibit phosphorylation of the alpha inhibitor of NF-κB (IκBα) as assayed by Western blot. In conclusion, these data demonstrate that simonsinol could inhibit inflammation response in LPS-stimulated RAW264.7 cells through the inactivation of the nuclear transcription factor kappa-B (NF-κB) signaling pathway.

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Anti-Neuroinflammatory and Anti-Inflammatory Activities of Phenylheptatriyne Isolated from the Flowers of Coreopsis lanceolata L. via NF-κB Inhibition and HO-1 Expression in BV2 and RAW264.7 Cells

International Journal of Molecular Sciences ◽

10.3390/ijms22147482 ◽

2021 ◽

Vol 22 (14) ◽

pp. 7482

Author(s):

Hwan Lee ◽

Zhiming Liu ◽

Chi-Su Yoon ◽

Linsha Dong ◽

Wonmin Ko ◽

...

Keyword(s):

Silica Gel ◽

Column Chromatography ◽

Raw264.7 Cells ◽

Necrosis Factor Alpha ◽

Tnf Α ◽

Etoac Fraction ◽

Factor Alpha ◽

Anti Inflammatory ◽

And Oxidative Stress ◽

Necrosis Factor

Aging is associated with immune disregulation and oxidative stress which lead to inflammation and neurodegenerative diseases. We have tried to identify the anti-neuroinflammatory and anti-inflammatory components of Coreopsis lanceolata L. The dried flowers of C. lanceolata were extracted with 70% EtOH, and the obtained extract was divided into CH2Cl2, EtOAc, n-BuOH, and H2O fractions. The CH2Cl2 fraction was separated using silica gel and C-18 column chromatography to yield phenylheptatriyne (1), 2′-hydroxy-3,4,4′-trimethoxychalcone (2), and 4′,7-dimethoxyflavanone (3). Additionally, the EtOAc fraction was subjected to silica gel, C-18, and Sephadex LH-20 column chromatography to yield 8-methoxybutin (4) and leptosidin (5). All the compounds isolated from C. lanceolata inhibited the production of nitric oxide (NO) in LPS-induced BV2 and RAW264.7 cells. In addition, phenylheptatriyne and 4′,7-dimethoxyflavanone reduced the secretion of inflammatory cytokines, tumor necrosis factor alpha (TNF-α), and interleukin (IL)-6. Among them, phenylheptatriyne was significantly downregulated in the expression of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2). Subsequently, phenylheptatriyne also effectively inhibited nuclear factor-kappa B (NF-κB) activation in LPS-stimulated BV2 and RAW264.7 cells. Based on these results, the anti-neuroinflammatory effect of phenylheptatriyne isolated from C. lanceolata was confirmed, which may exert a therapeutic effect in treatment of neuroinflammation-related diseases.

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Hyaluronic Acid-Modified and TPCA-1-Loaded Gold Nanocages Alleviate Inflammation

Pharmaceutics ◽

10.3390/pharmaceutics11030143 ◽

2019 ◽

Vol 11 (3) ◽

pp. 143 ◽

Cited By ~ 4

Author(s):

Jingnan Zhao

Keyword(s):

Hyaluronic Acid ◽

Inflammatory Cells ◽

Oxygen Species ◽

Necrosis Factor Alpha ◽

Tnf Α ◽

Nanogold Particles ◽

Gold Nanocages ◽

Factor Alpha ◽

Anti Inflammatory ◽

Necrosis Factor

Gold nanocages (AuNCs) are biocompatible and porous nanogold particles that have been widely used in biomedical fields. In this study, hyaluronic acid (HA) and peptide- modified gold nanocages (HA-AuNCs/T/P) loaded with 2-[(aminocarbonyl)amino]-5-(4-fluorophenyl)-3-thiophenecarboxamide (TPCA-1) were prepared to investigate their potential for combating inflammation. TPCA-1 was released from AuNCs, intracellularly when HA was hydrolyzed by hyaluronidase. HA-AuNCs/T/P show a much higher intracellular uptake than AuNCs/T/P, and exhibit a much higher efficacy on the suppression of tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6) than free TPCA-1, suggesting great improvement to the anti-inflammatory efficacy of TPCA-1 through the application of AuNCs. HA-AuNCs/T/P can also reduce the production of reactive oxygen species in inflammatory cells. This study suggests that HA-AuNCs/T/P may be potential agents for anti-inflammatory treatment, and are worthy of further investigation.

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Phytochemical Analysis, Pharmacological and Safety Evaluations of Halophytic Plant, Salsola cyclophylla

Molecules ◽

10.3390/molecules26082384 ◽

2021 ◽

Vol 26 (8) ◽

pp. 2384

Author(s):

Hamdoon A. Mohammed ◽

Mohsen S. Al-Omar ◽

Salman A. A. Mohammed ◽

Ahmad H. Alhowail ◽

Hussein M. Eldeeb ◽

...

Keyword(s):

Ethanolic Extract ◽

Phytochemical Analysis ◽

High Concentration ◽

Halophytic Plant ◽

Anti Oxidant ◽

Aqueous Ethanolic Extract ◽

Phytochemical Constituents ◽

Anti Inflammatory ◽

Dpph Scavenging ◽

Anti Inflammation

Salsola cyclophylla, an edible halophyte, is traditionally used for inflammation and pain. To confirm the claimed anti-inflammatory and analgesic properties, a detailed study on respective pharmacological actions was undertaken. The activities are contemplated to arise from its phytoconstituents. The LC-MS analysis of S. cyclophylla 95% aqueous-ethanolic extract revealed the presence of 52 compounds belonging to phenols, flavonoids, coumarins, and aliphatics class. A high concentration of Mn, Fe, and Zn was detected by atomic absorption spectroscopic analysis. The ethyl acetate extract showed the highest flavonoid contents (5.94 ± 0.04 mg/g, Quercetin Equivalents) and Fe2+-chelation (52%) potential with DPPH radicals-quenching IC50 at 1.35 ± 0.16 mg/mL, while the aqueous ethanolic extract exhibited maximum phenolics contents (136.08 ± 0.12 mg/g, gallic acid equivalents) with DPPH scavenging potential at IC50 0.615 ± 0.06 mg/mL. Aqueous ethanolic extract and standard quercetin DPPH radicals scavenging’s were equal potent at 10 mg/mL concentrations. The aqueous ethanolic extract showed highest analgesic effect with pain reduction rates 89.86% (p = 0.03), 87.50% (p < 0.01), and 99.66% (p = 0.0004) after 60, 90, and 120 min, respectively. Additionally, aqueous ethanolic extract exhibited the highest anti-inflammation capacity at 41.07% (p < 0.0001), 34.51% (p < 0.0001), and 24.82% (p < 0.0001) after 2, 3, and 6 h of extract’s administration, respectively. The phytochemical constituents, significant anti-oxidant potential, remarkable analgesic, and anti-inflammatory bioactivities of extracts supported the traditionally claimed anti-inflammatory and analgesic plant activities.

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Anti-inflammatory effects of Anredera cordifolia and Piper crocatum extracts on lipopolysaccharide-stimulated macrophage cell line

Bangladesh Journal of Pharmacology ◽

10.3329/bjp.v12i1.28714 ◽

2017 ◽

Vol 12 (1) ◽

pp. 35 ◽

Cited By ~ 7

Author(s):

Dian Ratih Laksmitawati ◽

Anisa Widyastuti ◽

Nadia Karami ◽

Ervi Afifah ◽

Dwi Davidson Rihibiha ◽

...

Keyword(s):

Cell Line ◽

Tumor Necrosis ◽

Macrophage Cell Line ◽

Macrophage Cell ◽

Cell Viability Assay ◽

Viability Assay ◽

Tnf Α ◽

Anti Inflammatory ◽

Α Level ◽

Necrosis Factor

In this study, the anti-inflammatory potential of Anredera cordifolia and Piper crocatum extracts on lipopolysaccharide-induced murine macrophage cell line (RAW 264.7) was observed. Cell viability assay was performed with MTS assay. Parameters measured to determine the anti-inflammatory activity were interleukin-1β (IL-1β), tumor necrosis factor (TNF)-α, nitric oxide (NO) and IL-6. Both A. cordifolia and P. crocatum at concentration of 50 µg/mL in cell line resulted significant decrease in TNF-α level (250.3 and 242.5 pg/mL respectively). A. cordifolia showed significant decrease in IL-1β level at 50 µg/mL and IL-6 level at 10 µg/mL, whilst P. crocatum showed significant decrease IL-1β level in three concentrations with lowest level at 50 µg/mL. A. cordifolia showed lowest decrease in NO level at 50 µg/mL but not comparable with normal cells, whilst P. crocatum showed significant decrease in NO level at 50 µg/mL. This research revealed that A. cordifolia and P. crocatum possess the anti-inflammatory potential indicated by the inhibitory activity of the inflammatory mediators including, TNF-α, IL-1β, IL-6, and NO.

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Suppression of tumor necrosis factor-alpha-induced neutrophil adherence responses by essential oils

Mediators of Inflammation ◽

10.1080/09629350310001633342 ◽

2003 ◽

Vol 12 (6) ◽

pp. 323-328 ◽

Cited By ~ 39

Author(s):

Shigeru Abe ◽

Naho Maruyama ◽

Kazumi Hayama ◽

Hiroko Ishibashi ◽

Shigeharu Inoue ◽

...

Keyword(s):

Essential Oils ◽

Tumor Necrosis ◽

Neutrophil Activation ◽

Necrosis Factor Alpha ◽

Tnf Α ◽

Neutrophil Adherence ◽

Factor Alpha ◽

Anti Inflammatory ◽

Necrosis Factor

Background:In aromatherapy, essential oils are used as anti-inflammatory remedies, but experimental studies on their action mechanisms are very limited.Aims:To assess their anti-inflammatory activities, effects of essential oils on neutrophil activation were examinedin vitro.Methods:Neutrophil activation was measured by tumor necrosis factor-alpha (TNF-α)-induced adherence reaction of human peripheral neutrophils.Results:All essential oils tested at 0.1% concentration suppressed TNF-α-induced neutrophil adherence, and, in particular, lemongrass, geranium and spearmint oils clearly lowered the reaction even at 0.0125%. Similar inhibitory activities for the neutrophil adherence were obtained by their major constituent terpenoids: citral, geraniol, citronellol and carvone. In contrast, very popular essential oils, tea tree oil and lavender oil, did not display the inhibitory activity at the concentration.Conclusion:Thus, some essential oils used as anti-inflammatory remedies suppress neutrophil activation by TNF-α at a low concentration (0.0125-0.025%)in vitro.

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Essential Oil of Myrtus communis Inhibits Inflammation in Rats by Reducing Serum IL-6 and TNF-α

Natural Product Communications ◽

10.1177/1934578x1100601034 ◽

2011 ◽

Vol 6 (10) ◽

pp. 1934578X1100601 ◽

Cited By ~ 8

Author(s):

Andrea Maxia ◽

Maria Assunta Frau ◽

Danilo Falconieri ◽

Manvendra Singh Karchuli ◽

Sanjay Kasture

Keyword(s):

Essential Oil ◽

Inflammatory Activity ◽

Myrtus Communis ◽

Ear Edema ◽

Tnf Α ◽

Cotton Pellet ◽

Anti Inflammatory ◽

Factor Α ◽

Necrosis Factor ◽

Serum Tumor Necrosis

The topical anti-inflammatory activity of the essential oil of Myrtus communis L. was studied using croton oil induced ear edema and myeloperoxidase (MPO) activity in mice, and cotton pellet induced granuloma, and serum tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in rats. On topical application, the oil exhibited a significant decrease in the ear edema as well as MPO activity. The oil also inhibited cotton pellet-induced granuloma and serum TNF-α and IL-6. It can be concluded that the essential oil of Myrtus communis reduces leukocyte migration to the damaged tissue and exhibits anti-inflammatory activity.

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EVALUATION OF AQUEOUS FRUIT EXTRACT OF TAMARINDUS INDICA (L) FOR INHIBITION OF TUMOR NECROSIS FACTOR-a AND CYCLO OXYGENASE ENZYMES IN EXPERIMENTAL ANIMAL

Asian Journal of Pharmaceutical and Clinical Research ◽

10.22159/ajpcr.2018.v11i3.23027 ◽

2018 ◽

Vol 11 (3) ◽

pp. 57 ◽

Cited By ~ 1

Author(s):

Mohammad Daud Ali ◽

Atul Kumar Gupta ◽

Arif Naseer ◽

Mohd Aamir Mirza ◽

Sabir Afzal

Keyword(s):

Tumor Necrosis Factor ◽

Tumor Necrosis ◽

Significant Inhibition ◽

Tamarindus Indica ◽

Screening Assay ◽

Standard Drug ◽

Cox Inhibitor ◽

Tnf Α ◽

Anti Inflammatory ◽

Necrosis Factor

Objective: The main objective of this study was to assess tumor necrosis factor-α (TNF)-α and cyclooxygenase enzymes (COX) inhibition potency of Tamarindus indica Linn. in comparison to standard drug (indomethacin).Methods: Three plants are selected for the studies, namely: Aloe vera (L.), Terminalia chebula Reitz., and T. indica Linn. Estimation of TNF-α in serum (at 1:10 dilution in PBS) was performed using the immunoenzymatic (ELISA) technique. COX inhibitor screening assay kits were used for estimation of COX.Result: All three plant extracts showed a potent significant inhibition of the COX enzyme as compared to the positive control and standard drug when the animal was administered with 400 mg/kg. These studies indicate that the T. indica plant extract showed significant COX inhibition even at low dose. All the extracts were effective anti-inflammatory in nature, however, T. indica extracts at a dose of 400 mg/kg were found to be most potent. It was found to be comparable with that of Indomethacin 10 mg/kg body weight.Conclusion: The anti-inflammatory activity expressed by all the three plants A. vera (L.), T. chebula Reitz., and T. indica L. Among all three plants T. indica (L) was found to be more active against both TNF-α and COX, and it was comparable to standard drug Indomethacin. Need further studies to elucidate the exact secondary metabolite by which these plants express this activity.

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INHIBITORY EFFECTS ON TUMOR NECROSIS FACTOR ALPHA AND INTERLEUKIN 12 USING CLOBETASOL PROPIONATE LOADED TEA TREE OIL NANOEMULSION GEL ON ANIMAL MODEL

Asian Journal of Pharmaceutical and Clinical Research ◽

10.22159/ajpcr.2018.v11i6.24888 ◽

2018 ◽

Vol 11 (6) ◽

pp. 182

Author(s):

Md Sarfaraz Alam ◽

Mohamammad Daud Ali ◽

Md Salahuddin Ansari ◽

Pankaj Sharma

Keyword(s):

Clobetasol Propionate ◽

Interleukin 12 ◽

Tea Tree Oil ◽

Necrosis Factor Alpha ◽

Tea Tree ◽

Tnf Α ◽

Nanoemulsion Gel ◽

Factor Alpha ◽

Anti Inflammatory ◽

Necrosis Factor

Objective: The main objective of our study is to explore anti-inflammatory activity at its molecular level like tumor necrosis factor alpha (TNF-α), interleukin 12 (IL-12) expression, and histopathological study.Methods: As per solubility/miscibility of clobetasol propionate (CP) with tea tree oil (TTO), surfactant and cosurfactant (Smix), and water in a ratio of oil:Smix:water (15:35:50) taken in milliliter for the preparation of nanoemulsion. Induced allergic contact dermatitis (ACD) with dinitrofluorobenzene (DNFB) was used for the study. TNF-α and interleukin 12 (IL-12) were estimated with rabbit antimouse TNF-α and rat antimouse IL-12 antibodies in 1% of bovine serum albumin in phosphate buffer.Results: Topical application of CP loaded nanoemulsion gel inhibits ear inflammation and erythema in DNFB-induced ACD in mice and significantly reduces the intracellular edema and infiltration with inflammatory mediator cells involving of mononuclear cells and neutrophils. CP loaded nanoemulsion gel reduces expression of protein level of TNF-α and IL-12.Conclusion: CP loaded nanoemulsion gel confirmed that anti-inflammatory effects showed more rapidly than the placebo and marketed gel preparation. However, the animals treated with placebo nanoemulsion gel showed a somehow comparable reduction of their inflammation during treatment compared with the marketed gel. This effect may be due to anti-inflammatory effect of TTO. This result suggested that anti-inflammatory activity of placebo nanoemulsion gel may be due to TTO present in nanoemulsion as vehicle.

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