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1996-02-26
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Document 1076
DOCN M9621076
TI Characteristics of perforin expressing lymphocytes within the first
trimester decidua of human pregnancy.
DT 9602
AU Rukavina D; Rubesa G; Gudelj L; Haller H; Podack ER; Department of
Physiology and Immunology, Medical Faculty,; University of Rijeka,
Croatia.
SO Am J Reprod Immunol. 1995 May;33(5):394-404. Unique Identifier :
AIDSLINE MED/96070201
AB PROBLEM: The number of perforin (P)-positive cells in decidua of
pregnancy is larger than that observed in any other pathological
condition. The aim was to investigate the distribution and the phenotype
of P+ cells. METHOD: Decidual tissue was obtained from the first
trimester vaginal termination of pregnancy. Tissue distribution of P+
cells was analyzed by immunohistochemistry. The method for simultaneous
measurement of P and cell surface is presented. RESULTS: There is no
difference in number and distribution of P+ cells between decidua
basalis (DB) and decidua parietalis (DP). The percentage of P+ decidual
lymphocytes (DL) is two times higher than in peripheral blood
lymphocytes (PBL) (55% vs. 27%), and the prevalent phenotype is CD3-
CD4- CD8- CD2+ (95%) CD11c+ (68%) and CD56+ (82%). CD56bright+ DL are
also Pbright+ and this is the largest DL subpopulation (42.4% DL). Two
different subpopulations of CD8+ DL exist: 1) CD8bright+, which are CD3+
CD56- P- and 2) CD8dim+, which are CD3- CD56+ P+. CONCLUSION: P
expressing DL are prevalently nonclassical NK cells (CD16-) with low
cytolytic activity but fully equipped with potent cytolytic machinery
(Pbright+). There are no classical cytotoxic lymphocytes (CTL) (CD3+
CD8+ P+) in the decidua, and all CD8+ P+ cells are CD3- CD56+. The
number of P+ cells is even higher in DP in the vicinity of noninvasive
trophoblast, than in DB.
DE Antigens, CD56/ANALYSIS Antigens, CD8/ANALYSIS Biological
Markers/ANALYSIS CD8-Positive T-Lymphocytes/CHEMISTRY
Decidua/*IMMUNOLOGY Female Human Immunophenotyping Killer Cells,
Natural/CHEMISTRY Membrane Glycoproteins/*ANALYSIS Pregnancy
Pregnancy Trimester, First/*IMMUNOLOGY Staining Support, Non-U.S.
Gov't T-Lymphocytes/*CHEMISTRY JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).