Antiasthmatic Effects of Gleditsia sinensis in an Ovalbumin-Induced Murine Model of Asthma

2011 ◽  
Vol 30 (5) ◽  
pp. 528-537 ◽  
Author(s):  
Mee-Young Lee ◽  
In-Sik Shin ◽  
Chang-Seob Seo ◽  
Heykyung Ha ◽  
Hyeun-Kyoo Shin
Keyword(s):  
Allergic Asthma ◽  
Murine Model ◽  
Immunoglobulin E ◽  
Ethanolic Extract ◽  
Lavage Fluid ◽  
Dependent Manner ◽  
Cell Hyperplasia ◽  
Inflammatory Infiltration ◽  
Gleditsia Sinensis

This study evaluated the antiasthmatic effects of Gleditsia sinensis ethanolic extract (GSEE) and its underlying mechanisms, using an in vivo murine model of asthma. Female BALB/c mice were sensitized, challenged with ovalbumin, and then examined for asthmatic reactions. The results showed that GSEE exerted profound inhibitory effects on the accumulation of eosinophils in the airways and reduced the levels of interleukin (IL)-4 and IL-5 in bronchoalveolar lavage fluid (BALF) and immunoglobulin E (IgE) in BALF and plasma. Gleditsia sinensis ethanolic extract also suppressed the production of reactive oxygen species in BALF and inflammatory infiltration, in a dose-dependent manner, and it inhibited goblet-cell hyperplasia in lung tissue. Thus, GSEE shows antiasthmatic effects in a murine model of allergic asthma, which appeared to be mediated partially by the reduction of oxidative stress and airway inflammation. These results indicate that GSEE could be an effective novel therapeutic agent for the treatment of allergic asthma.

Preclinical Safety and Pharmacology of an Anti-Human Interleukin-13 Monoclonal Antibody in Normal Macaques and in Macaques with Allergic Asthma

2008 ◽  
Vol 27 (5) ◽  
pp. 351-358 ◽  
Author(s):  
Pauline L. Martin ◽  
Dusti Fisher ◽  
William Glass ◽  
Karyn O’Neil ◽  
Anuk Das ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Allergic Asthma ◽  
Immunoglobulin E ◽  
Cynomolgus Macaque ◽  
Lavage Fluid ◽  
Antigen Challenge ◽  
Interleukin 13 ◽  
Lung Eosinophilia

Interleukin-13 (IL-13) plays a central role in chronic airway diseases, including asthma. These studies were conducted to evaluate the safety of administration of a human anti-IL-13 monoclonal antibody (mAb) to normal macaques and in macaques with allergic asthma. In addition, serum and bronchioalveolar lavage fluid were collected from allergic cynomolgus macaques in order to identify potential surrogate markers of IL-13 pharmacology that could be useful for subsequent clinical trials. In vitro studies demonstrated that the anti-IL-13 mAb inhibited the pharmacological actions of both human and cynomolgus macaque IL-13. Allergic macaques were treated systemically with 10 mg/kg anti-IL-13 mAb 1 day prior to inhaled Ascaris suum antigen challenge. Normal macaques were dosed intravenously with anti-IL-13 once per week for 3 weeks at doses of 10 or 50 mg/kg. Treatment of macaques with the anti-IL-13 mAb was not associated with any toxicologically significant findings. A slight treatment-related but nonadverse decrease in platelet counts was observed in both the normal and allergic macaques. In allergic macaques, the anti-IL-13 mAb treatment did not affect lung function, lung eosinophilia, or serum or BAL immunoglobulin E (IgE) concentrations but did produce a reduction in BAL and serum eotaxin concentrations ( p < .05) at 6 h post antigen challenge. This study shows that administration of an anti-IL-13 mAb was well tolerated in both normal and allergic asthmatic macaques and that serum eotaxin concentrations may be a useful early in vivo marker for evaluating IL-13 inhibition in patients with asthma.

scholarly journals Study Effect of Vitamin D on the Immunopathology Responses of the Bronchi in Murine Model of Asthma

2021 ◽  
Author(s):  
Linlin Feng ◽  
Tingting Meng ◽  
Yunyun Qi ◽  
Seyyed Shamsadin Athari ◽  
Xiaoyun Chen
Keyword(s):  
Vitamin D ◽  
Allergic Asthma ◽  
Goblet Cell ◽  
Murine Model ◽  
Bronchoalveolar Lavage Fluid ◽  
Lavage Fluid ◽  
Cell Hyperplasia ◽  
Goblet Cell Hyperplasia ◽  
Asthmatic Patients ◽  
Genetic And Environmental Factors

  Allergic asthma is a complicated respiratory problem characterized by airway inflammation, airway hyperresponsiveness (AHR), breathlessness, mucus hyper-secretion, and goblet cell hyperplasia. Asthma is controlled by genetic and environmental factors. Allergy is the main trigger of asthma and is mediated by Th2 cytokines along with IgE production. Vitamin D (Vit D) is the main supplementary factor for the immune system. In the present study, we investigated the effect of Vit D on the exacerbation of allergic asthma. A murine model of allergic asthma was induced by ovalbumin (OVA) in four of five groups of studied female BALB/c mice (each group, n=20). One group was considered as control. Of OVA-induced mice, two groups received Vit D via oral (10,000 IU/kg diet) or intranasal (inhalation) forms (30 min on days 25, 27, and 29), and the third group received budesonide. At least, AHR, the levels of IL-4, IL-5, IL-13, and INF-g in bronchoalveolar lavage fluid (BALF), serum IgE and histamine, IL-25 and IL-33 gene expression, as well as histopathology study of the lung were done. The Penh values, type2 Cytokines in BALF (in both protein and molecular levels), total IgE and histamine, perivascular and peribronchial inflammation, goblet cell hyperplasia, and mucus hypersecretion decreased significantly in both oral and intranasal Vit D-treated asthmatic mice groups, especially on day 38 of orally treated mice. Here, we found Vit D as a promising agent in control of allergic asthma with a remarkable ability to decrease the severity of inflammation. Therefore, Vit D sufficiency is highly recommended in asthmatic patients.

scholarly journals The Antiinfective Effects of Velvet Antler of Formosan Sambar Deer (Cervus unicolor swinhoei) onStaphylococcus aureus-Infected Mice

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Ting-Yeu Dai ◽  
Chih-Hua Wang ◽  
Kun-Nan Chen ◽  
I-Nung Huang ◽  
Wei-Sheng Hong ◽  
...  
Keyword(s):  
Lipoteichoic Acid ◽  
Lavage Fluid ◽  
Dependent Manner ◽  
Protective Mechanisms ◽  
Velvet Antler ◽  
Sambar Deer ◽  
Dose Dependent ◽  
Cervus Unicolor

We assayed the effects of velvet antler (VA) of Formosan sambar deer (Cervus unicolor swinhoei) and its extracts on the anti-infective activity against pathogenicStaphylococcus aureus in vitroandin vivoin this study.In vitrodata indicated that the VA extracts stimulated the proliferation of resting splenocytes and macrophages in a dose-dependent manner up to the highest concentration used (150 μg mL−1). The production of proinflammatory cytokines (TNF-α, IL-6, IL-12) by lipoteichoic acid was significantly suppressed after being cocultured with the VA extracts in a dose-dependent manner. Animal test inS. aureus-infected mice demonstrated that the numbers of bacteria determined in the kidneys and peritoneal lavage fluid ofS. aureus-infected mice were significantly higher than those found in the same organs of mice pretreated with the VA samples. Moreover, the highly enhanced phagocytic activity of macrophages was further verified afterin vitrotreatment with the VA samples. The protective mechanisms of the VA samples might include an immune enhancer and an inflammatory cytokine suppressor.

Abstract 201: Generation of Photoactivatable apoA I to Study HDL Transport in vivo Reveals Impaired HDL Recirculation in a Murine Model of Psoriasis

2017 ◽  
Vol 37 (suppl_1) ◽  
Author(s):  
Li-Hao Huang ◽  
Bernd H Zinselmeyer ◽  
Chih-Hao Chang ◽  
Brian T Saunders ◽  
Brian S Kim ◽  
...  
Keyword(s):  
T Cell ◽  
Murine Model ◽  
Structural Changes ◽  
Cardiovascular Outcomes ◽  
Dependent Manner ◽  
Cardiovascular Comorbidity ◽  
Collagen Density

HDL is cardioprotective, but plasma HDL levels do not necessarily predict cardiovascular outcomes. The major HDL-associated protein apoA-I picks up its cholesterol from cells within extravascular compartments to return it to plasma and then bile. Yet, tools are lacking to quantify the important step of HDL transit through extravascular spaces. Here, we developed recombinant photoactivatable apoA-I to quantify endogenous HDL recirculation. Using the tool, we studied HDL passage through skin in healthy mice versus those with experimental psoriasis, wherein collagen density increased in the skin in a CD4 + T cell-dependent manner. In control mice, photoactivated HDL mobilized to plasma within 2 h but was retained in collagen-enriched skin of mice with psoriasis. These data suggest that cardiovascular comorbidity in psoriasis might be linked to T cell-mediated structural changes in skin that impedes systemic recirculation of HDL. This new tool is likely to find wide application in HDL research.

scholarly journals Frontline Science: Shh production and Gli signaling is activated in vivo in lung, enhancing the Th2 response during a murine model of allergic asthma

2017 ◽  
Vol 102 (4) ◽  
pp. 965-976 ◽  
Author(s):  
Ariane S. I. Standing ◽  
Diana C. Yánez ◽  
Rosie Ross ◽  
Tessa Crompton ◽  
Anna L. Furmanski
Keyword(s):  
Allergic Asthma ◽  
Murine Model ◽  
Th2 Response

Polygonum multiflorum Decreases Airway Allergic Symptoms in a Murine Model of Asthma

2016 ◽  
Vol 44 (01) ◽  
pp. 133-147 ◽  
Author(s):  
Chen-Chen Lee ◽  
Yueh-Lun Lee ◽  
Chien-N Wang ◽  
Hsing-Chuan Tsai ◽  
Chun-Lung Chiu ◽  
...  
Keyword(s):  
Allergic Asthma ◽  
Cell Activation ◽  
Therapeutic Potential ◽  
Inflammatory Cells ◽  
Lavage Fluid ◽  
Oral Feeding ◽  
Inflammatory Cell Infiltrate ◽  
Dependent Manner ◽  
Polygonum Multiflorum ◽  
Mucus Production

The root of Polygonum multiflorum (also called He-Shou-Wu in Chinese) is a common herb and medicinal food in Asia used for its anti-aging properties. Our study investigated the therapeutic potential of an extract of the root of Polygonum multiflorum (PME) in allergic asthma by using a mouse model. Feeding of 0.5 and 1 mg/mouse PME inhibited ovalbumin (OVA)-induced allergic asthma symptoms, including airway inflammation, mucus production, and airway hyper-responsiveness (AHR), in a dose-dependent manner. To discern PME’s mechanism of action, we examined the profile and cytokine production of inflammatory cells in bronchial alveolar lavage fluid (BALF). We found that eosinophils, the main inflammatory cell infiltrate in the lung of OVA-immunized mice, significantly decreased after PME treatment. Th2 cytokine levels, including interleukin (IL)-4, IL-5, IL-13, eotaxin, and the proinflammatory cytokine tumor necrosis factor (TNF)-[Formula: see text], decreased in PME-treated mice. Elevated mRNA expression of Th2 transcription factor GATA-3 in the lung tissue was also inhibited after oral feeding of PME in OVA-immunized mice. Thus, we conclude that PME produces anti-asthma activity through the inhibition of Th2 cell activation.

scholarly journals Dendritic Cells Expressing MyD88 Molecule Are Necessary and Sufficient for CpG-Mediated Inhibition of IgE Production in Vivo

2019 ◽  
Author(s):  
Ricardo Wesley Alberca-Custódio ◽  
Luciana Mirotti ◽  
Eliane Gomes ◽  
Fernanda Peixoto Barbosa Nunes ◽  
Raquel Souza Vieira ◽  
...  
Keyword(s):  
Dendritic Cells ◽  
B Cells ◽  
Immunoglobulin E ◽  
Dependent Manner ◽  
Toll Like Receptor ◽  
Cellular Mechanisms ◽  
Necessary And Sufficient ◽  
Myd88 Pathway

Elevated levels of immunoglobulin E (IgE) are associated with allergies and other immunological disorders. Experimentally, sensitization with alum adjuvant favors IgE production while CpG-ODN adjuvant, a synthetic toll-like receptor 9 (TLR9) agonist, inhibits it. The cellular mechanisms underlying TLR-regulation of immunoglobulin production are still controversial. Specifically, TLR-mediated IgE regulation in vivo is not yet known. We show that augmented levels of IgE induced by sensitizations to OVA with or without alum adjuvant or with OVA-pulsed dendritic cells (DCs) were inhibited when sensitization to OVA was performed in the presence of CpG. Notably, CpG-mediated suppression of IgE production required MyD88-expression on DCs but not on B-cells. This contrasts with previous reports of in vitro regulation IgE where CpG acted directly on B cells via MyD88 pathway. In addition, CpG also inhibited IgE production in a MyD88-dependent manner when sensitization was performed with OVA-pulsed DCs. Finally, CpG signaling through MyD88 pathway was also necessary and sufficient to prevent anaphylactic antibody production involved in active cutaneous anaphylaxis.

scholarly journals Phytochemical & Pharmacological Investigation of Stems of Passiflora foetida

2021 ◽  
pp. 408-414
Author(s):  
N. Michael Antony ◽  
Jennifer Fernandes ◽  
Jane Mathew
Keyword(s):  
Analgesic Activity ◽  
Ethanolic Extract ◽  
Tail Flick ◽  
Phytochemical Analysis ◽  
Significant Activity ◽  
Dependent Manner ◽  
Phytochemical Investigation ◽  
Soxhlet Apparatus ◽  
Passiflora Foetida

Aims: To carry out extraction, preliminary phytochemical analysis and invivo analgesic screening of extract of the stem of Passiflora foetida L. Methodology: Passiflora foetida L; Family: Passifloraceae, is an exotic fast-growing perennial and medicinal vine occurring in Germany, France and other European countries and USA and grown in different parts of India. Dried stems of Passiflora foetida L was coarsely powdered and maceration was done using Soxhlet apparatus. The ethanolic extract of stems of Passiflora foetida L was subjected to preliminary phytochemical tests. Then subjected to in vivo analgesic activity. Results: Phytochemical investigation of the stem of Passiflora foetida L preliminary test showed the presence of carbohydrates, glycosides, flavonoids and steroids. Acute toxicity study of ethanolic extract of stems of Passiflora foetida L was carried out and extracts were found to be safe up to 2000 mg/kg body weight. Pharmacological activities of stems of Passiflora foetida L was carried out from ethanolic extract. Conclusion: Phytochemical investigation of ethanolic extract of stems were carried out and Analgesic activity by tail flick method in rats and acetic acid induced writhing method in mice, showed statistically significant activity (P=.05) when compared to control. The ethanolic stem extract of Passiflora foetida L proved to have significant pain relieving action in a dose dependent manner.

scholarly journals Proangiogenic Effect of Affinin and an Ethanolic Extract from Heliopsis longipes Roots: Ex Vivo and In Vivo Evidence

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7670
Author(s):  
Paola Estefanía García-Badillo ◽  
Anaguiven Avalos-Soriano ◽  
Josué López-Martínez ◽  
Teresa García-Gasca ◽  
Jesús Eduardo Castro-Ruiz
Keyword(s):  
Medicinal Plant ◽  
Mechanism Of Action ◽  
Ex Vivo ◽  
Ethanolic Extract ◽  
Aortic Ring ◽  
Dependent Manner ◽  
Vascular Growth ◽  
Angiogenesis Assay ◽  
Angiogenesis Process

Angiogenesis, the formation of new blood vessels, underlies tissue development and repair. Some medicinal plant-derived compounds can modulate the angiogenic response. Heliopsis longipes, a Mexican medicinal plant, is widely used because of its effects on pain and inflammation. The main bioactive phytochemicals from H. longipes roots are alkamides, where affinin is the most abundant. Scientific studies show various medical effects of organic extracts of H. longipes roots and affinin that share some molecular pathways with the angiogenesis process, with the vasodilation mechanism of action being the most recent. This study investigates whether pure affinin and the ethanolic extract from Heliopsis longipes roots (HLEE) promote angiogenesis. Using the aortic ring rat assay (ex vivo method) and the direct in vivo angiogenesis assay, where angioreactors were implanted in CD1 female mice, showed that affinin and the HLEE increased vascular growth in a dose-dependent manner in both bioassays. This is the first study showing the proangiogenic effect of H. longipes. Further studies should focus on the mechanism of action and its possible therapeutic use in diseases characterized by insufficient angiogenesis.

scholarly journals Cornus officinalis Ethanolic Extract with Potential Anti-Allergic, Anti-Inflammatory, and Antioxidant Activities

Nutrients ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3317
Author(s):  
Yixian Quah ◽  
Seung-Jin Lee ◽  
Eon-Bee Lee ◽  
Biruk Tesfaye Birhanu ◽  
Md. Sekendar Ali ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Immunoglobulin E ◽  
Ethanolic Extract ◽  
No Production ◽  
Dependent Manner ◽  
Scavenging Activity ◽  
Antioxidant Power ◽  
Cornus Officinalis ◽  
Tnf Α ◽  
Anti Inflammatory

Atopic dermatitis (AD) is an allergic and chronic inflammatory skin disease. The present study investigates the anti-allergic, antioxidant, and anti-inflammatory activities of the ethanolic extract of Cornus officinalis (COFE) for possible applications in the treatment of AD. COFE inhibits the release of β-hexosaminidase from RBL-2H3 cells sensitized with the dinitrophenyl-immunoglobulin E (IgE-DNP) antibody after stimulation with dinitrophenyl-human serum albumin (DNP-HSA) in a concentration-dependent manner (IC50 = 0.178 mg/mL). Antioxidant activity determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, ferric reducing antioxidant power assay, and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) scavenging activity, result in EC50 values of 1.82, 10.76, and 0.6 mg/mL, respectively. Moreover, the extract significantly inhibits lipopolysaccharide (LPS)-induced nitric oxide (NO) production and the mRNA expression of iNOS and pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) through attenuation of NF-κB activation in RAW 264.7 cells. COFE significantly inhibits TNF-α-induced apoptosis in HaCaT cells without cytotoxic effects (p < 0.05). Furthermore, 2-furancarboxaldehyde and loganin are identified by gas chromatography/mass spectrometry (GC-MS) and liquid chromatography with tandem mass spectrometry (LC-MS/MS) analysis, respectively, as the major compounds. Molecular docking analysis shows that loganin, cornuside, and naringenin 7-O-β-D-glucoside could potentially disrupt the binding of IgE to human high-affinity IgE receptors (FceRI). Our results suggest that COFE might possess potential inhibitory effects on allergic responses, oxidative stress, and inflammatory responses.

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