title: [Using flow cytometry to detect peripheral blood eosinophils and their related molecules].
abstract: OBJECTIVE
  To set up an accurate and rapid method to detect the phenotype of peripheral blood eosinophils using flow cytometry.
  
  
  METHODS
  10(-4) mol/L of theophylline, 10(-4) of dexamethasone and 10(-8) mol/L of rhIL-5 were added to peripheral blood sampled from normal human subjects. Anti-CD16-PE mAb and FITC-labelled mAbs to eosinophil's molecules were used to perform double labeling staining. Simultaneously, CD16-FL2 was used to install gating so as to accurately locate eosinophils. And then their molecules were examined and analyzed.
  
  
  RESULTS
  The eosinophils were accurately located. Theophylline and dexamethasone effectively inhibited activation of eosinophils and shedding of CD62L on eosinophils caused by IL-5.
  
  
  CONCLUSIONS
  Our method can accurately detect eosinophils in peripheral blood samples and their molecules. In addition, only a tiny amount of blood sample is needed and few artificial factors are involved in the detection. Therefore, this method may be an ideal both in basic immunological research and clinical laboratory examination.
authors.affiliation: Department of Immunology, Fourth Military Medical University, Xi'an 710032, China.
authors.forename: Yun-xin
authors.initials: YX
authors.lastname: Cao
authors.forename: Jie-ran
authors.initials: JR
authors.lastname: Shi
authors.forename: Wei-ning
authors.initials: WN
authors.lastname: Han
mesh_terms: D003907:Dexamethasone / Q000494:pharmacology*; D047091:Eosinophil Granule Proteins / Q000378:metabolism; D004804:Eosinophils / Q000166:cytology / Q000378:metabolism; D005434:Flow Cytometry / Q000379:methods; D006801:Humans; D015848:Interleukin-5 / Q000037:antagonists & inhibitors; D019041:L-Selectin / Q000378:metabolism; D010641:Phenotype; D011994:Recombinant Proteins / Q000494:pharmacology; D013806:Theophylline / Q000494:pharmacology*
chemical_list: D047091:Eosinophil Granule Proteins; D015848:Interleukin-5; D011994:Recombinant Proteins; D019041:L-Selectin; D003907:Dexamethasone; D013806:Theophylline