RGD Reference Report - Elevated numbers of tissue-factor exposing microparticles correlate with components of the metabolic syndrome in uncomplicated type 2 diabetes mellitus. - Rat Genome Database

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Elevated numbers of tissue-factor exposing microparticles correlate with components of the metabolic syndrome in uncomplicated type 2 diabetes mellitus.

Authors: Diamant, M  Nieuwland, R  Pablo, RF  Sturk, A  Smit, JW  Radder, JK 
Citation: Diamant M, etal., Circulation. 2002 Nov 5;106(19):2442-7.
RGD ID: 2313865
Pubmed: PMID:12417540   (View Abstract at PubMed)

BACKGROUND: Type 2 diabetes is associated with accelerated atherosclerosis. Because cell-derived microparticles support coagulation and inflammation, they may be involved in atherogenesis. We characterized circulating microparticles both in patients with uncomplicated, well-regulated type 2 diabetes and in healthy subjects, as well as their relationship with coagulation and metabolic control. METHODS AND RESULTS: Microparticles were isolated from plasma, stained with annexin V, cell-specific monoclonal antibodies (MoAbs) and a MoAb directed against tissue factor (TF), and analyzed by flow cytometry. Microparticle numbers and origin were comparable in the two groups, but the median number of TF-positive microparticles was twice as high in patients than in controls (P=0.018). Patients had higher percentages of TF-positive microparticles from T-helper cells (P=0.045), granulocytes (P=0.004), and platelets (P=0.002). Subpopulations of TF-positive microparticles from platelets and T-helper cells exposed granulocytic markers. Correlations were found between the numbers of various TF-positive microparticle subpopulations and body mass index, fasting plasma glucose and insulin, or tumor necrosis factor-alpha and serum HDL cholesterol. Microparticles from patients generated less thrombin in vitro (P=0.007). Microparticle numbers did not correlate with in vivo coagulation markers prothrombin fragment F(1+2) and thrombin-antithrombin complexes. CONCLUSIONS: TF, possibly of granulocytic origin, is exposed on microparticle subpopulations in asymptomatic patients with well-regulated type 2 diabetes. TF-positive microparticles are associated with components of the metabolic syndrome but not with coagulation. Thus, TF on microparticles may be involved in processes other than coagulation, including transcellular signaling or angiogenesis.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
diabetic retinopathy  IEP 2313865protein:increased expression:aqueous humor and serumRGD 
Metabolic Syndrome  ISOF3 (Homo sapiens)2313865; 2313865associated with Diabetes Mellitus and Non-Insulin-DependentRGD 
Metabolic Syndrome  IEP 2313865associated with Diabetes Mellitus and Non-Insulin-DependentRGD 

Objects Annotated

Genes (Rattus norvegicus)
F3  (coagulation factor III, tissue factor)

Genes (Mus musculus)
F3  (coagulation factor III)

Genes (Homo sapiens)
F3  (coagulation factor III, tissue factor)


Additional Information