title: [Immune state in lung of BALB/c mice with ovalbumin allergy and the effects of fulvotomentoside on lungs of mice].
abstract: OBJECTIVE
  To investigate immune state in lung of BALB/c mice with ovalbumin (OVA) allergy and the effects of fulvotomentoside (Ful) on lungs of the mice and provide some clues for the mechanism that patients with food allergies were prone to asthma and observe the effects of the treatment with traditional Chinese medicine.
  
  
  METHODS
  Ninety-six female BALB/c mice were randomly divided into 6 groups. Mice in group 1 and group 2 were sensitized intraperitoneally and challenged intragastrically with OVA and were exposed to phosphate buffer solution and OVA respectively by nebulized inhalation. Mice in group 3 and group 4 were treated with Ful, other processes were the same as the mice in group 1 and group 2, respectively. Mice in group 5 were not challenged intragastrically with OVA and other processes were the same as the mice in group 2. Group 6 was the control group. The number of total leukocytes and cell classification in bronchoalveolar lavage (BALF) were counted, and inflammatory characteristic of lung was scored by staining with hematoxylin and eosin. The protein expressions of transforming growth factor (TGF-β1), interleukin-6 (IL-6), interleukin-17 (IL-17A) in lung of the mice were detected by immunohistochemical method. The activation of neutrophils in lung was assayed by the level of myeloroxidase (MPO).
  
  
  RESULTS
  There was no inflammatory cells infiltration in lung of the mice in group 1. Compared with group 6, numbers of total leukocytes and erythrocytes as well as the percentage of neutrophils and lymphocytes were increased in group 2. Inflammatory score and protein expressions of TGF-β1 [(75 437 ± 3 638) vs. (6 118 ± 1 978)], IL-6 [(121 650 ± 25 389) vs. (15 726 ± 9 360)], IL-17A [(252 105 ± 31 651)vs. (72 644 ± 12 285)] in lung were increased, too. Inflammatory score and TGF-β1 (11 054 ± 1 468), IL-6 (50 877 ± 11 744), IL-17A (137 864 ± 28 986) expressions in group 5 were lower than those in group 2. Eosinophils infiltration was significant in group 5. After the treatment with Ful, TGF-β1 expression did not change and IL-6, IL-17A expressions were decreased in lung of the mice that inhaled OVA. It was not enough for Ful to relieve the neutrophil aggregation and improve inflammatory reaction in lung.
  
  
  CONCLUSIONS
  The expressions of TGF-β1, IL-6, IL-17A in lung of the mice with OVA allergy were increased markedly after they inhaled specific antigen, which caused serious inflammation that was induced by neutrophil infiltration in lung. Ful could decrease the expressions of IL-6, IL-17A to some extent, but it was not enough to improve pathologic state in lung.
authors.affiliation: Department of Primary Child Care, Children's Hospital, Chongqing Medical University, Chongqing, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Bai
authors.forename: Hai-qi
authors.initials: HQ
authors.lastname: Li
mesh_terms: D000280:Administration, Inhalation; D000818:Animals; D001992:Bronchoalveolar Lavage Fluid / Q000166:cytology; D004195:Disease Models, Animal; D004365:Drugs, Chinese Herbal / Q000494:pharmacology; D005260:Female; D005512:Food Hypersensitivity / Q000276:immunology* / Q000378:metabolism / Q000473:pathology; D007150:Immunohistochemistry; D007249:Inflammation; D020381:Interleukin-17 / Q000378:metabolism; D015850:Interleukin-6 / Q000378:metabolism; D008171:Lung Diseases / Q000276:immunology* / Q000473:pathology / Q000517:prevention & control*; D051379:Mice; D008807:Mice, Inbred BALB C; D009504:Neutrophils / Q000187:drug effects / Q000276:immunology; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000494:pharmacology; D010047:Ovalbumin / Q000009:adverse effects / Q000276:immunology; D012503:Saponins / Q000494:pharmacology*; D053773:Transforming Growth Factor beta1 / Q000378:metabolism
chemical_list: D004365:Drugs, Chinese Herbal; D020381:Interleukin-17; D015850:Interleukin-6; D012503:Saponins; D053773:Transforming Growth Factor beta1; C061620:fulvotomentoside A; D009828:Oleanolic Acid; D010047:Ovalbumin