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M9550124.TXT
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1995-03-04
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Document 0124
DOCN M9550124
TI Targeting of pancreatic islets of severe combined immunodeficient mice
by passive transfer of allogeneic spleen cells from non-obese diabetic
mice.
DT 9505
AU Reddy S; Liu W; Elliott RB; Department of Paediatrics, University of
Auckland School of; Medicine, New Zealand.
SO Immunol Cell Biol. 1994 Oct;72(5):390-7. Unique Identifier : AIDSLINE
MED/95137690
AB The precise role of immune cells in beta cell killing and their manner
of invasion of pancreatic islets in insulin-dependent diabetes mellitus
(IDDM) are unclear. We have attempted to target pancreatic islets of
severe-combined immunodeficient (SCID) mice with spleen cells from
diabetic and non-diabetic female non-obese diabetic (NOD) mice given
i.p. or i.v. Pancreatic, liver and kidney sections of SCID mice were
assessed histologically for the presence of donor cells. The presence of
raised levels of serum Ig was also used as an index of engraftment of
donor cells in the periphery of SCID mice. All six SCID mice which
received i.v. spleen cells from normal Swiss mice died within 2 weeks
from graft versus host disease (GVHD) whereas five out of nine mice
survived for 30 days after i.p. injection. No deaths were recorded after
i.v. or i.p. injection of spleen cells from NOD mice. Pancreatic islets
of four out of six SCID recipients of diabetic and three out of five
recipients of non-diabetic spleen cells following i.p. injection showed
lymphocytic infiltrates in the peri-islet and perivascular regions. All
SCID mice which received i.v. spleen cells from diabetic (six SCID
recipients) and non-diabetic NOD mice (seven SCID recipients) showed
peri-islet and perivascular infiltrates in their pancreas.
Immunohistochemical analysis showed that the islet engrafted cells were
of CD4 and CD8 phenotype. Donor cells were also observed in the exocrine
pancreas of some recipients. A majority of mice showed various degrees
of lymphocytic aggregates in the perivascular regions of the liver but
not in the kidney.(ABSTRACT TRUNCATED AT 250 WORDS)
DE Animal CD4-Positive T-Lymphocytes/PATHOLOGY CD8-Positive
T-Lymphocytes/PATHOLOGY Diabetes Mellitus,
Insulin-Dependent/*IMMUNOLOGY Female Graft vs Host
Disease/IMMUNOLOGY/PATHOLOGY *Immunization, Passive Islets of
Langerhans/*IMMUNOLOGY Kidney/PATHOLOGY Liver/PATHOLOGY Male Mice
Mice, Inbred NOD Mice, SCID Pancreas/PATHOLOGY Severe Combined
Immunodeficiency/*IMMUNOLOGY/PATHOLOGY Spleen/CYTOLOGY/*IMMUNOLOGY
Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).