The study of the eosinophil CD34+ progenitor cells differentiation mechanism of model rats with occupational asthma and the intervention of warm and tonifying kidney yang decoction
10.3760/cma.j.issn.1001-9391.2016.09.004
- VernacularTitle:职业性哮喘模型大鼠CD34+祖细胞分化机制及中药温肾阳干预
- Author:
Zuying HU
1
;
Yangmin JIA
;
Shujuan WANG
;
Jingyin HAN
;
Ting YU
Author Information
1. 310000,杭州市职业病防治院
- Keywords:
Asthma;
Plants,medicinal;
Stem cells
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2016;34(9):653-658
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the mechanism of CD34+ progenitor cell differentiation in rat by observing the change relations between the eosinophils (EOS) and the content of Eotaxin and IL-5 in blood and the CD34+/CCR3+,CD34+/IL-5Rα+ in bone marrow after occupational asthma (OA) model rats are simulated,and to observe the effect of WTKYD Trraitioual Chinese Medicine intervention.Methods A total of 40 healthy male SD model rats (200 ～ 250 g weight) were randomly divided into model contrast Group,prednisone acetate intervention Group,WTKYD+1/2 prednisone acetate intervention Group and WTKYD intervention Group,10 in each group,and set a Group for blank contrast.Give them saline (20 ml/kg),prednisone acetate (8.22 mg/kg),WTKYD (20g/kg) +1/2 prednisone acetate (4.11 mg/kg) and WTKYD (20 g/kg) intervention respectively.By means of cell count,immunohistochemical,ELISA,flow cytometry technique,situ hybridization and so on,to observe EOS anti the expression of Eotaxin in lung tissue,the EOS in peripheral blood,the content of Eotaxin and IL-5 in blood as well as the expression of CD34+/CCR3 + and CD34+/IL-5Ra+ in bone marrow respectively.Results The number of EOS,the content of Eotaxin and IL-5,the expression of CD34+/CCR3+ and CD34+/IL-5Ra+ in Model Contrast Group were higher in Blank Contrast Group,the difference was statistically significant (P＜0.01),while they were lower in mnedical intervention Groups when comparing to Model Contrast Group,the difference was statistically significant (P＜0.01 or P＜0.05),and the above items in WTKYD +1/2 Prednisone Acetate Intervention Group were even lower thau in Prednisone Acetate Intervention Group and WTKYD Intervention Group,the difference was statistically significant (P＜0.05).EOS in lung tissue is highly positive related to the content of Eotaxin and IL-5 in peripheral blood as well as the expression of CD34+/CCR3 and CD34+/IL-5Rα in bone marrow (0.9666,0.9829,0.9142,0.8874).Conclusion The increase of internnd EOS in lung tissue is related to the up-regulated expression of CD34+/CCR3+ and CD34+/IL-5Ra+ in bone marrow after antigens in Occupational Asthma model rats are stimulated.Through down-regulating it's expression to restrain the differentiation of CD34 + progenitor cells towards EOS,meanwhile,the collaboration of WTKYD and prednisone acetate possess a certain synergistic action.
