a(MESH:"Cell Adhesion Molecules")
Thus, by participating in Fenton chemistry, non-transferrin-bound iron (i.e., iron not bound to the physiological iron transport protein, transferrin) causes oxidative damage, cytotoxicity and enhanced endothelial expression of adhesion molecules, thereby enhancing thrombotic risk (Hershko, 2007). PubMed:25307023
Furthermore, NO has a fundamental role in normal vascular physiology by inhibiting both platelet aggregation and endothelial adhesion molecule expression, as detailed below PubMed:25307023
Free heme has been proved possess pro-inflammatory activities, such as leukocyte activation, migration and infiltration, adhesion molecules activation, and cytokines and acute phase proteins induction [17, 18]. PubMed:24464629
Heme promotes endothelial dysfunction by inducing the expression of adhesion molecules and reducing nitric oxide (NO) availability, which causes vasoconstriction [9-14]. PubMed:28400318
Hemin induces expression of the adhesion molecules on endothelial cells [7, 8] and enables firm neutrophil attachment to the endothelium and initiation of an inflammatory response [9, 10]. PubMed:28716864
Based on the previous findings that hemin induces neutrophil adhesion to endothelial cells [8] and that A1AT protects endothelial cells from neutrophil adhesion induced by fMLP [27], we investigated whether A1AT, as a scavenger of hemin, can prevent hemin-induced neutrophil adhesion to HUVECs. As shown in Fig. 4, neutrophils treated with hemin or fMLP (used as a positive control) exhibited a 3-fold higher adhesion to HUVECs compared with controls. However, the adherence of neutrophils treated with hemin/A1AT did not differ from controls (Fig. 4). PubMed:28716864
We recently found that, contrary to other forms of oxidized hemoglobin, ferrylhemoglobin acts as a potent pro-inflammatory agonist in endothelial cells, leading to the up-regulation of adhesion molecules that support the recruitment of macrophages into the vessel wall.36 PubMed:20378845
Based on the previous findings that hemin induces neutrophil adhesion to endothelial cells [8] and that A1AT protects endothelial cells from neutrophil adhesion induced by fMLP [27], we investigated whether A1AT, as a scavenger of hemin, can prevent hemin-induced neutrophil adhesion to HUVECs. As shown in Fig. 4, neutrophils treated with hemin or fMLP (used as a positive control) exhibited a 3-fold higher adhesion to HUVECs compared with controls. However, the adherence of neutrophils treated with hemin/A1AT did not differ from controls (Fig. 4). PubMed:28716864
Furthermore, haem-induced release of P-selectin and VWF is mediated by TLR4 and NFkB signalling. PubMed:25307023
During the resolution phase of inflammation HO-1 expression in leukocytes reduces adhesion molecules expression and leukocytes migration, thus contributing to wound healing (Wagener et al., 2003a). PubMed:24904418
Free heme has been proved possess pro-inflammatory activities, such as leukocyte activation, migration and infiltration, adhesion molecules activation, and cytokines and acute phase proteins induction [17, 18]. PubMed:24464629
Hemin induces expression of the adhesion molecules on endothelial cells [7, 8] and enables firm neutrophil attachment to the endothelium and initiation of an inflammatory response [9, 10]. PubMed:28716864
Based on the previous findings that hemin induces neutrophil adhesion to endothelial cells [8] and that A1AT protects endothelial cells from neutrophil adhesion induced by fMLP [27], we investigated whether A1AT, as a scavenger of hemin, can prevent hemin-induced neutrophil adhesion to HUVECs. As shown in Fig. 4, neutrophils treated with hemin or fMLP (used as a positive control) exhibited a 3-fold higher adhesion to HUVECs compared with controls. However, the adherence of neutrophils treated with hemin/A1AT did not differ from controls (Fig. 4). PubMed:28716864
Essential for the development of DIC during sepsis is the so-called pro-coagulatory shift of the endothelial cells, caused among others by an increased expression of tissue factor and adhesion molecules especially by damaged endothelial cells [87]. PubMed:29956069
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If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.