[Examination expression of CD3 and CD69 in nasal polyps].
OBJECTIVE
To investigate the infiltration of T lymphocytes with CD3 expression as surface marker and the activation of T lymphocytes with CD69 expression as activation marker.


METHODS
Nasal polyp tissue samples and peripheral blood were obtained from 21 patients. The normal inferior turbinate mucosa and peripheral blood were obtained as comparison. Flow cytometry was adopted to detect the expression of CD3 and CD69 of T lymphocytes.


RESULTS
Nasal polyp tissue consisted of abundant T lymphocytes. Activation marker CD69 was expressed in T lymphocytes of nasal polyps (36.96 +/- 2.50)% and peripheral blood (4.66 +/- 0.18)% from the same patient. The expression rates of CD69 after a short-term stimulation (5 h) in response to PDB were (59.88 +/- 2.59)% and (92.76 +/- 0.55)% respectively. While T lymphocytes was rarely detected in normal inferior turbinate and the expression of CD69 was low in peripheral blood from normal human but almost all T lymphocytes were activated after stimulation.


CONCLUSIONS
There were generous of T lymphocytes infiltrating in nasal polyps. The expression of CD69 in T lymphocytes was abnormally high, which indicated that T lymphocytes infiltrating in nasal polyps were in activated state immunologically.
Shi
Jian-bo
JB
Department of Otorhinolaryngology, First Hospital of Sun-Yat-Sen University of Medical Sciences, Guangzhou 510080, China. tsjbent@163.com
Chen
Rong
R
Wen
Wei-ping
WP
Di
Jing-fang
JF
Zeng
Shan
S
Huang
Gui-qiu
GQ
D000293:Adolescent; D000328:Adult; D000368:Aged; D015703:Antigens, CD / Q000378:metabolism*; D000945:Antigens, Differentiation, T-Lymphocyte / Q000378:metabolism*; D017252:CD3 Complex / Q000378:metabolism*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D037181:Lectins, C-Type / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D009298:Nasal Polyps / Q000276:immunology* / Q000378:metabolism*; D013601:T-Lymphocytes / Q000378:metabolism; D055815:Young Adult; D000099192:CD69 Antigens
D015703:Antigens, CD; D000945:Antigens, Differentiation, T-Lymphocyte; D017252:CD3 Complex; D037181:Lectins, C-Type; D000099192:CD69 Antigens