home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9601.ZIP
/
M9610497.TXT
< prev
next >
Wrap
Text File
|
1996-01-30
|
3KB
|
44 lines
Document 0497
DOCN M9610497
TI Intravital demonstration of sequential migration process of lymphocyte
subpopulations in rat Peyer's patches.
DT 9601
AU Miura S; Tsuzuki Y; Fukumura D; Serizawa H; Suematsu M; Kurose I; Imaeda
H; Kimura H; Nagata H; Tsuchiya M; et al; Department of Medicine, School
of Medicine, Keio University,; Tokyo, Japan.
SO Gastroenterology. 1995 Oct;109(4):1113-23. Unique Identifier : AIDSLINE
MED/96029311
AB BACKGROUND & AIMS: Although recirculation of lymphocytes through Peyer's
patches is important for specific immune defense, the intraorgan
migration of lymphocyte subpopulations has not been clearly understood.
The aim of this study was to compare the spatial distributions of
labeled lymphocytes among various subpopulations in rat Peyer's patches.
METHODS: Lymphocytes collected from intestinal lymph were separated into
CD4+, CD8+, and T and B cells, labeled with a fluorochrome
carboxyfluorescein diacetate succinimidyl ester, and injected into the
jugular vein. Peyer's patches of recipient rats were observed by
intravital fluorescence microscopy. RESULTS: No significant difference
was found in the percentage of lymphocytes in transit or in the rolling
velocity among different subpopulations. Lymphocytes sticking to the
venules increased in number at 10-20 minutes, with preferential
adherence of CD4+ cells to venules of 25-50 microns and preferential
adherence of B cells to the venules of a wider size range. After 30
minutes, extravasated lymphocytes moved into the interstitium. B cells
migrated from venules more quickly than CD4+ cells. CD8+ cells showed an
intermediate pattern between CD4+ and B cells in sticking and migratory
behaviors. Subsequently, CD4+ and CD8 cells preferentially appeared in
parafollicular microlymphatics. CONCLUSIONS: Significant differences
were observed among lymphocyte subpopulations in terms of spatial
distribution of lymphocytes sticking to venules, migration into the
interstitium, and their lymphatic transport.
DE Animal B-Lymphocytes/IMMUNOLOGY Cell Movement Cell Separation
CD4-Positive T-Lymphocytes/IMMUNOLOGY CD8-Positive
T-Lymphocytes/IMMUNOLOGY Lymphocyte Subsets/*IMMUNOLOGY/PHYSIOLOGY
Male Microscopy, Fluorescence Peyer's Patches/CYTOLOGY/*IMMUNOLOGY
Rats Rats, Wistar Support, Non-U.S. Gov't T-Lymphocytes/IMMUNOLOGY
JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).