Molecular mapping of platelet hyperreactivity in diabetes: the stress proteins complex HSPA8/Hsp90/CSK2 alpha and platelet aggregation in diabetic and normal platelets
Por:
Chiva-Blanch, G, Pena, E, Cubedo, J, Garcia-Arguinzonis, M, Pane, A, Gil, PA, Perez, A, Ortega, E, Padro, T, Badimon, L
Publicada:
1 sep 2021
Ahead of Print:
1 jul 2021
Resumen:
The molecular understanding of the pathophysiological changes elicited by diabetes in platelets may help in further elucidating the involvement of this pseudo-cell in the increased risk of developing cardiovascular disease and thrombosis in diabetic subjects. We aimed to investigate the differential characteristics of platelets from diabetic patients and nondiabetic controls to unveil the molecular mechanisms behind the increased platelet reactivity in diabetes. We compared platelets from diabetic and control subjects by 2 dimensional-electrophoresis followed by mass spectrometry. Changes in selected differential proteins were validated by immunoprecipitation assays and western blot. Platelet aggregation was measured by light transmittance aggregometry induced by collagen and ADP, and dynamic coagulation analysis of whole blood was measured by thromboelastometry. We observed significant differences in proteins related to platelet aggregation, cell migration, and cell homeostasis. Subjects with diabetes showed higher platelet aggregation and thrombogenicity and higher contents of the stress-related protein complex HSPA8/Hsp90/CSK2a than nondiabetic subjects. Changes in the chaperones HSPA8 and Hsp90, and in CSK2a protein contents correlated with changes in platelet aggregation and blood coagulation activity. In conclusion, the complex HSPA8/ Hsp90/CSK2a is involved in diabetes-related platelet hyperreactivity. The role of the HSPA8/Hsp90/CSK2a complex may become a molecular target for the development of future preventive and therapeutic strategies for platelet dysfunction associated with diabetes and its complications. (Translational Research 2021; 235:1-14)
Filiaciones:
Chiva-Blanch, G:
Hosp Santa Creu & St Pau IIB St Pau, Inst Recerca, Cardiovasc Program ICCC, Barcelona, Spain.
Inst Invest Biomed August Pi Sunyer IDIBAPS, Hosp Clin, Nutr Dept, Barcelona, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Fisiopatol Obesidad & Nutr, Madrid, Spain.
Pena, E:
Hosp Santa Creu & St Pau IIB St Pau, Inst Recerca, Cardiovasc Program ICCC, Barcelona, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Cardiovasc CIBERCV, Madrid, Spain.
Cubedo, J:
Hosp Santa Creu & St Pau IIB St Pau, Inst Recerca, Cardiovasc Program ICCC, Barcelona, Spain.
Garcia-Arguinzonis, M:
Hosp Santa Creu & St Pau IIB St Pau, Inst Recerca, Cardiovasc Program ICCC, Barcelona, Spain.
Pane, A:
Inst Invest Biomed August Pi Sunyer IDIBAPS, Hosp Clin, Nutr Dept, Barcelona, Spain.
Gil, PA:
Hosp Santa Creu & Sant Pau, Endocrinol Dept, Barcelona, Spain.
Perez, A:
Hosp Santa Creu & Sant Pau, Endocrinol Dept, Barcelona, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Cardiovasc CIBERCV, Madrid, Spain.
Ortega, E:
Inst Invest Biomed August Pi Sunyer IDIBAPS, Hosp Clin, Nutr Dept, Barcelona, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Cardiovasc CIBERCV, Madrid, Spain.
Padro, T:
Hosp Santa Creu & St Pau IIB St Pau, Inst Recerca, Cardiovasc Program ICCC, Barcelona, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Cardiovasc CIBERCV, Madrid, Spain.
Badimon, L:
Hosp Santa Creu & St Pau IIB St Pau, Inst Recerca, Cardiovasc Program ICCC, Barcelona, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Cardiovasc CIBERCV, Madrid, Spain.
Inst Salud Carlos III ISCIII, Ctr Invest Biomed Red Diabet & Enfermedades Metab, Madrid, Spain.
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