Chao-Zong Liu

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Clumping factor A (ClfA) is a surface protein of Staphylococcus aureus bacteria known for its ability to bind the C-terminus of plasma fibrinogen gamma chain, which participates in mediating fibrinogen-platelet interaction and fibrin cross-linking, resulting in thrombus formation. With an aim to develop agents that block fibrinogen gamma chain C-terminus,(More)
Interaction with circulating platelets is considered an important virulent mechanism for Staphylococcus aureus (S. aureus) bacteria to induce endocarditis, a severe infectious disease with high incidence of systemic thrombosis. It therefore represents an important target for pharmacological intervention. In this study, we found that the clinical isolate S.(More)
A straightforward method for the rapid detection of the presence of glutathione S-transferase (GST)-tagged proteins from sample solutions using glutathione (GSH)-bound gold nanoclusters (Au@GSH NCs) with luminescence properties as the detection probes by simple observation with the naked eye was proposed in this study.
Nitric oxide (NO) is identified as the endothelium-derived relaxing factor and a neurotransmitter with a superfusion bioassay cascade technique. By using a similar technique with rat superior cervical ganglion (SCG) as donor tissue and rabbit endothelium-denuded aortic ring as detector tissue, we report here that a vasodilator, which is more potent than NO,(More)
We previously reported that the fibrinogen-binding segment (residues 221-550) of Staphylococcus aureus clumping factor A (ClfA), which binds to fibrinogen gamma chain C-terminus, exerted inhibitory effects on platelet aggregation and fibrin clot formation in vitro. Here, we further demonstrated the effectiveness of using ClfA221-550 to inhibit platelet-rich(More)
The interaction of extracellular matrix with cells plays a key role in the regulation of cell adhesion, migration, proliferation as well as differentiation. Transformed cells express a different profile of adhesion molecules, which may mediate metastasis under specific matrix microenvironment. We here found that ROS 17/2.8 osteosarcoma cells and osteoblasts(More)
Glycoprotein (GP) Ia/IIa plays a key role in platelet function by acting as a primary receptor for subendothelial collagen, thereby contributing to arterial thrombosis. In this study, we found that the expression level of platelet GPIa/IIa among Taiwan Chinese varies over sixfold and this difference relates either to the GPIa gene 807 C/T dimorphisms or the(More)
Plasma fibrinogen participates in several physiological and pathological events thus becoming a useful studying material in biomedical research. Here we report a new convenient method for fibrinogen purification based on the affinity of Staphylococcus aureus clumping factor A to fibrinogen. Clumping factor A (ClfA) is a cell wall-anchored surface protein of(More)
Trimucytin is a powerful platelet aggregation inducer isolated from the venom of Taiwan habu snake (Trimeresurus mucrosquamatus). In this study, we found that the snake venom protein, crovidisin, which prevents collagen-platelet interaction through its high-affinity binding to collagen, inhibited competitively trimucytin-induced aggregation of washed human(More)
hydrogen carbonate, glucose, and trifluoroacetic acid (TFA) were obtained from Riedel-deHaën (Seelze, Germany). Acetonitrile and thrombin were purchased from Merck (Darmstadt, Germany). Hydrogen tetrachloroaurate (Ⅲ) tetrahydrate was obtained from Showa (Tokyo, Japan), while isopropyl-beta-D-thiogalacto-pyranoside (IPTG) was obtained from Fluka (Seelze,(More)