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- 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).
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