Relationships of glycoproteins IIb-IIIa and Ib content with mean platelet volume and their genetic polymorphisms.
Quantity of platelet adhesion molecules significantly varies in normal donors and cardiovascular patients and might be affected by platelet size and genetic variations. In this study, we assessed relationships of the content of glycoprotein (GP) IIb-IIIa and GPIb with mean platelet volume (MPV) and their genetic polymorphisms. MPV and GPIIb-IIIa and GPIb numbers were measured in 116 patients with acute coronary syndrome (ACS) at days 1, 3-5 and 8-12 after disease onset and in 32 healthy volunteers. GPIIb-IIIa and GPIb allelic variants were determined in ACS patients. Strong interactions of GPIIb-IIIa and GPIb numbers and MPV were observed in ACS patients and healthy volunteers. In patients, coefficients of correlation (r) were 0.642 and 0.510 (analysis of individual mean values) and in volunteers - 0.594 and 0.508 for GPIIb-IIIa and GPIb, respectively (everywhere P < 0.005). In ACS patients, correlations were highly significant at each tested time point. GPIIb-IIIa and GPIb genetic polymorphisms [GPIIIa Leu33Pro, GPIbα Thr145Met and GPIbα (-5)T/C (Kozak)] determined in ACS patients had no significant impact on their expression. Modest correlation was revealed between MPV and plasma thrombopoietin (TPO) measured at the first day of ACS (r = 0.279, P = 0.005). The data obtained indicated that GPIIb-IIIa and GPIb levels are mainly affected by platelet size (MPV) but not by their genetic variations. In some ACS patients, production of large platelets with high GPIIb-IIIa and GPIb contents might be stimulated by elevated TPO.
aRussian Cardiology Research and Production Complex, Russian Ministry of Health, Moscow bPetersburg Nuclear Physics Institute cNorth-Western State Medical University, Russian Ministry of Health, Saint-Petersburg dFaculty of Physics, Moscow State University eCenter for Theoretical Problems of Physicochemical Pharmacology, Moscow, Russia.
Svetlana G
SG
Khaspekova
Ilia T
IT
Zyuryaev
Vladimir V
VV
Yakushkin
Olga V
OV
Sirotkina
Natalia O
NO
Zaytseva
Mikhail Y
MY
Ruda
Mikhail A
MA
Panteleev
Alexey V
AV
Mazurov
D054058:Acute Coronary Syndrome / Q000097:blood* / Q000235:genetics* / Q000378:metabolism; D005260:Female; D006801:Humans; D008297:Male; D063847:Mean Platelet Volume / Q000379:methods; D008875:Middle Aged; D010973:Platelet Adhesiveness; D019039:Platelet Glycoprotein GPIIb-IIIa Complex / Q000235:genetics* / Q000378:metabolism*; D011110:Polymorphism, Genetic
D019039:Platelet Glycoprotein GPIIb-IIIa Complex