[Preparation of suspension of gastric mucous membrane single cell and expression of cyclins in cells].
OBJECTIVE
To explore a method which can remove the gastric mucus in order to prepare mucous membrane single cell suspension for the research of cytomics.


METHODS
Enzymology was used to remove the mucus gel and to separate mucous layer from the normal fresh gastric tissue. The mucous layer was broken to prepare single cell suspension with machine method. Expression of major cyclins in mucous layer cells was examined by cytoimmunochemistry, flow cytometry(FCM) and confocal microscopy.


RESULTS
The 0.1% pepsin could dissolve the mucus gel and 1.2-2.4 U/L dispase could separate the mucous layer completely. The single mucous cell suspension was prepared successfully. FCM results from mucous single cell suspension revealed that expression of cyclin D(3), B(1) was obvious, that of cyclin D(2) was weak and that of cyclin D(1), A, E was the least. Similar results were found with confocal microscopy.


CONCLUSIONS
Single cell suspension from mucous layer can be easily prepared by pepsin and dispase. Cyclins schedule expression in vivo is different from cyclins schedule expression in vitro.
Cao
Jin-Peng
JP
Cancer Institute, Center of Gastrointestinal Surgery, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, China.
Hu
Li-Juan
LJ
Li
Xiao-Lan
XL
Xiao
Hui
H
Tao
De-Ding
DD
Hu
Jun-Bo
JB
Gong
Jian-Ping
JP
D002460:Cell Line; D049109:Cell Proliferation; D016213:Cyclins / Q000378:metabolism*; D005434:Flow Cytometry; D005752:Gastric Mucins / Q000378:metabolism*; D005753:Gastric Mucosa / Q000166:cytology* / Q000378:metabolism*; D006801:Humans; D009092:Mucous Membrane / Q000166:cytology / Q000378:metabolism
D016213:Cyclins; D005752:Gastric Mucins