G protein-coupled biological processes are important for an ever-increasing number of human diseases and require fine-tuning through accessory molecules such as the regulators of G protein signaling (RGS). RGS5, a marker for tumor-resident pericytes, was recently established as playing a pivotal role in vascular maturation and vessel remodeling during carcinogenesis. Remarkably, tumors arising ...

Pathological vessel growth harms vision and may finally lead to loss. Anti-angiogenic gene therapy with viral vectors for ocular neovascularization has shown great promise in preclinical studies. Most of the studies have been conducted different adeno-associated serotype vectors. In addition, adeno- lentivirus used. Therapy targeted towards blocking vascular endothelial factors or other pro-ang...

Angiogenesis is a multi-factorial process involving endothelial cells, pericytes, macrophages, angiogenic factors and inhibitors. It plays a fundamental role in many physiological and pathological processes such as wound healing and atherosclerosis. Haemostasis is the arrest of blood loss from damaged blood vessels involving platelet adhesion, activation and blood coagulation. Recent studies su...

PURPOSE The authors examine the effect of retinal branch vein occlusion (BVO), a common retinal vascular disorder, on protein tyrosine phosphorylation, production of angiogenic growth factors, and activation of signal proteins in the tyrosine kinase pathways in the retina. METHODS Retinal branch vein occlusion was induced in cat retina by coagulation of retinal veins with diathermy. At 2 days...

An angiogenic activity was demonstrated in both vitreous and retina by two assay systems using rabbit corneal micropocket technique and aortic endothelial cell culture. With the former technique, the only demonstrable angiogenic activity was found in vitreous of dogs 8 days of age or younger, with or without oxygen treatment. However, with the assay using aortic endothelial cell culture, angiog...

Chemokines are a superfamily of structurally homologous heparin-binding proteins that includes potent inducers and inhibitors of angiogenesis. The imbalance between angiogenic and angiostatic chemokine activities can lead to abnormalities, such as chronic inflammation, dysplastic transformation, and even tumor development and spreading. In this review, we summarize the current literature regard...

A highly vascular endocrine gland, the corpus luteum (CL) is an excellent model for the study of angiogenic factors. Prokineticins (PK-1 and -2), also termed endocrine-gland-derived vascular endothelial growth factor (VEGF) and BV8 are newly identified proteins described as selective angiogenic mitogens. We previously identified PK binding sites, two closely homologous G protein-coupled recepto...

BACKGROUND Antihypertensive drugs are believed to lower blood pressure in pre-eclampsia by direct or central vasodilatory mechanisms. However, they could also act by decreasing production of anti-angiogenic proteins involved in the pathophysiology of hypertension and proteinuria in pre-eclampsia (PE). The aim of our study was to evaluate the impact of antihypertensive therapy with alpha methyld...

The process involving new blood vessel sprouting from already existing ones is regulated by a physiological complex mechanism, known as angiogenesis. It plays a key role in wound healing but is also present in pathophysiological conditions such as cancer and cardiovascular disease, which have the highest rates of morbidity and mortality worldwide. It is stimulated mechanically or chemically, wi...