home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Collection of Education
/
collectionofeducationcarat1997.iso
/
HEALTH
/
MED9601.ZIP
/
M9610148.TXT
< prev
next >
Wrap
Text File
|
1996-01-30
|
2KB
|
41 lines
Document 0148
DOCN M9610148
TI The neuropeptide substance P does not influence the migration of B, T,
CD8+ and CD4+ ('naive' and 'memory') lymphocytes from blood to lymph in
the normal rat.
DT 9601
AU Heerwagen C; Pabst R; Westermann J; Center of Anatomy, Medical School of
Hannover, Germany.
SO Scand J Immunol. 1995 Oct;42(4):480-6. Unique Identifier : AIDSLINE
MED/96017850
AB Thoracic duct lymphocytes (TDL) continuously patrol through the body,
facilitating immune responses at most sites. The neuropeptide Substance
P might regulate immune responses by influencing the migration of TDL.
Therefore, it was investigated whether Substance P affects the migration
of thoracic duct B, T, CD8+ and CD4+ ('naive' and 'memory') lymphocytes
from blood to lymph in vivo. Labelled TDL were either incubated with
Substance P and then injected into normal rats, or incubated without
Substance P and then injected into rats continuously receiving Substance
P intravenously. The numbers of labeled B, T, CD8+ and CD4+ ('naive' and
'memory') lymphocytes were determined in blood and thoracic duct lymph
for 1 and 5 days, respectively. Neither the in vitro incubation with
Substance P nor its in vivo application influenced the disappearance of
any lymphocyte subset from the blood or its reappearance in the lymph.
In addition, continuous intravenous application of the Substance P
antagonist CP 96.345 did not alter the volume or the lymphocyte number
of the efferent lymph. The present study indicates that the nervous
system does not influence immune responses via Substance P by altering
the migration pattern of B, T, CD8+ and CD4+ ('naive' and 'memory')
lymphocytes.
DE Animal B-Lymphocytes/*CYTOLOGY/DRUG EFFECTS Blood
Cells/CYTOLOGY/IMMUNOLOGY Cell Movement/*DRUG EFFECTS CD4-Positive
T-Lymphocytes/*CYTOLOGY/DRUG EFFECTS CD8-Positive
T-Lymphocytes/*CYTOLOGY/DRUG EFFECTS Flow Cytometry
Lymph/CYTOLOGY/IMMUNOLOGY Male Rats Rats, Inbred Lew Substance
P/*PHARMACOLOGY Support, Non-U.S. Gov't T-Lymphocytes/*CYTOLOGY/DRUG
EFFECTS JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).