Korean J Vet Res.  2016 Jun;56(2):67-74. 10.14405/kjvr.2016.56.2.67.

Water soluble tomato concentrate regulates platelet function via the mitogen-activated protein kinase pathway

• Jeong D
• Irfan M
• Saba E
• Kim SD
• Kim SH
• Rhee MH

• KMID: 2368746
• DOI: http://doi.org/10.14405/kjvr.2016.56.2.67

Abstract

Tomato extract has been shown to exert antiplatelet activity in vitro and to change platelet function ex vivo, but with limitations. In this study, antiplatelet activity of water soluble tomato concentrate (Fruitflow I) and dry water soluble tomato concentrate (Fruitflow II) was investigated using rat platelets. Aggregation was induced by collagen and adenosine diphosphate and granule-secretion, [Ca2+]i, thromboxane B2, cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) levels were examined. The activation of integrin αIIbβ3 and phosphorylation of signaling molecules, including mitogen-activated protein kinase (MAPK) and PI3K/Akt, were investigated by flow cytometry and immunoblotting, respectively. Prothrombin time (PT) and activated partial thromboplastin time (aPTT) were examined. Moreover, in vivo thrombus weight was tested by an arteriovenous shunt model. Fruitflow I and Fruitflow II significantly inhibited agonist induced platelet aggregation, adenosine triphosphate and serotonin release, [Ca2+]i, and thromboxane B2 concentration, while having no effect on cAMP and cGMP levels. Integrin αIIbβ3 activation was also significantly decreased. Moreover, both concentrates reduced phosphorylation of MAPK pathway factors such as ERK, JNK, P38, and PI3K/Akt. In vivo thrombus formation was also inhibited. Taken together, these concentrates have the potential for ethnomedicinal applications to prevent cardiovascular ailments and can be used as functional foods.

Keyword

blood platelet; cardiovascular disease; natural cardioprotective agent; thrombosis; tomato

MeSH Terms

Adenosine Diphosphate
Adenosine Monophosphate
Adenosine Triphosphate
Animals
Blood Platelets*
Cardiovascular Diseases
Collagen
Flow Cytometry
Functional Food
Guanosine Monophosphate
Immunoblotting
In Vitro Techniques
Lycopersicon esculentum*
Partial Thromboplastin Time
Phosphorylation
Platelet Aggregation
Protein Kinases*
Prothrombin Time
Rats
Serotonin
Thrombosis
Thromboxane B2
Water*
Adenosine Diphosphate
Adenosine Monophosphate
Adenosine Triphosphate
Collagen
Guanosine Monophosphate
Protein Kinases
Serotonin
Thromboxane B2
Water