Lymphocyte activation in angina pectoris.
To determine the role of immune responses in the etiology of coronary angioplasty, the distribution of blood lymphocytes and levels of soluble immune factors in sera of patients with primary unstable angina were determined at pre and post coronary angioplasty. Our data showed (1) an increase in the numbers of lymphocytes bearing lymphocyte activating gene-3 (LAG-3) and CD40 in the blood and (2) an increase in levels of sIL2-R and sVCAM-1 in the sera of patients with unstable angina, compared with normal subjects. In contrast, there were no changes in these values in blood or sera of patients shortly after coronary angioplasty. However, levels of sCD8 in the sera of patients, which were similar to those of normal subjects, significantly increased post coronary angioplasty. These results indicate that peripheral blood lymphocytes of patients with unstable angina are immunologically activated and are producing soluble factors which may allow their interaction with endothelial cells in areas of inflammation. This may play a role in antigen presentation and T-B cell interactions which can lead to potentiation of heart disease.
Smith-Norowitz
T A
TA
Department of Medicine/Immunology, SUNY/Maimonides Medical Center, Brooklyn, New York 11219, USA.
Shani
J
J
Weiser
W
W
Schulhoff
N
N
Norowitz
K
K
Lichstein
E
E
Mokhtarian
F
F
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000787:Angina Pectoris / Q000097:blood / Q000276:immunology*; D015703:Antigens, CD; D019013:CD40 Antigens / Q000097:blood; D016827:CD8 Antigens / Q000097:blood; D005260:Female; D006801:Humans; D018799:Intercellular Adhesion Molecule-1 / Q000097:blood; D008213:Lymphocyte Activation; D016131:Lymphocyte Subsets / Q000378:metabolism; D008297:Male; D008565:Membrane Proteins / Q000097:blood; D008875:Middle Aged; D015375:Receptors, Interleukin-2 / Q000097:blood; D019010:Vascular Cell Adhesion Molecule-1 / Q000097:blood; D000093322:Lymphocyte Activation Gene 3 Protein
D015703:Antigens, CD; D019013:CD40 Antigens; D016827:CD8 Antigens; D008565:Membrane Proteins; D015375:Receptors, Interleukin-2; D019010:Vascular Cell Adhesion Molecule-1; D018799:Intercellular Adhesion Molecule-1; D000093322:Lymphocyte Activation Gene 3 Protein; C000720326:Lag3 protein, human