An article published this year in “INTERNATIONAL JOURNAL OF CARDIOLOGY”
using our anti-CD41-FITC, anti-CD3-APC, anti-CD25-PE, anti-CD25-FITC, anti-CD4-APC-C750 and our Stepcount tubes, by our customers
from Department of Physiology, Faculty of Medicine and Dentistry, University of
Valencia, Valencia, Spain, in the study of how Circulating microparticle
subpopulations in Systemic Lupus Erythematosus are affected by disease activity.
Congrats and Thanks.
Summary:
Background: Immune cells under chronic inflammation shed microparticles (MPs) that
could fuel the inflammatory responses and atherosclerosis typically presented
in Systemic Lupus Erythematosus (SLE). This study analyses total and
subset-specific MPs from SLE patients and their possible influence on clinical
features, leukocyte activation and serum cytokines.
Methods: Total MPs and derived from platelets, endothelial cells, monocytes,
granulocytes and T-cells were quantified in plasma of 106 SLE patients and 33
healthy controls by flow cytometry. MP amounts were analyzed according to
clinical manifestations, blood leukocyte populations and circulating cytokines
(IFNα, TNFα, IL-10, BLyS, IL-17, IL-1β, CXCL10, CCL-2, CCL3, leptin). Finally,
the in vitro effect of SLE-isolated MPs on the leukocyte activation status was
analyzed.
Results: Total circulating MPs in SLE patients were related to increased disease
duration and the presence of cardiovascular disease. Furthermore, patients
displayed increased counts of MPs from platelets, monocytes and T-lymphocytes,
especially in SLE patients with disease activity or with TNFαhigh-profile.
Accordingly, MPs were associated with increased expression of activation
markers in blood T-cells and monocytes. Finally, analyses propose a role of
glucocorticoids in MPs generation and leukocyte activation since both fresh and
cultured T-cells under this treatment presented higher IL-10 and CD25
production.
Conclusions: The altered profile of subset-specific SLE-MPs was influenced by the
disease activity and altered status of leukocyte native cells, also associated
with a TNFαhigh-profile.
Translational
results: SLE patients, especially those with disease activity,
displayed increased counts of MPs derived from platelets, monocytes and
T-lymphocytes, which were more frequently found in TNFαhigh-type patients. The
origin of such SLE-MP subsets seems to be related to the over-activated status
of T-cells and monocytes characteristic of these patients. Ex vivo and in vitro
analyses propose a role of glucocorticoids in the generation of circulating MPs
and leukocyte activation in SLE patients.
Reference:
Product link:
Stepcount tubes: http://www.immunostep.com/diagnostic-kits/2312-stepcount.html
No comments:
Post a Comment