Endothelial cell migration is an essential aspect of tumor angiogenesis. Rac1 activity is needed for cell migration in vitro implying a requirement for this molecule in angiogenesis in vivo. However, a precise role for Rac1 in tumor angiogenesis has never been addressed. Here we show that depletion of endothelial Rac1 expression in adult mice, unexpectedly, has no effect on tumor growth or tumo...

In a seminal New England Journal of Medicine article, published 40 years ago, Folkman proposed the concept that angiogenesis could be a target for cancer therapy [1]. This proposal emerged from early observations that some tumors cells were capable of stimulating endothelial cells to form new capillary sprouts and that nonvascularized tumors were held in a dormant state, unable to grow beyond a...

Snake venom, as a natural biotoxin, is widely present in nature and can act coordination with variety of signal regulatory proteins, playing significant role the regulation tumor cell proliferation, metastasis, invasion, angiogenesis. Malignant tumors have long attracted attention medical community leading cause death humans. In this paper, we focus on reviewing progress snake venom apoptosis, ...

The p70 S6 kinase 1 (p70S6K1) exerts its function in regulating protein synthesis, cell proliferation, cell cycle progression, and cell survival in response to growth factors and other cellular signals. But the direct effect of p70S6K1 in regulating tumor growth and angiogenesis remains to be elucidated. Here, we investigated the effect of p70S6K1 expressed in human dermal microvascular endothe...

Background Once a tumor lesion exceeds a few millimeters in diameter, hypoxia triggers a cascade of events to allow angiogenesis and tumor progression. As angiogenesis is essential for tumor growth and metastasis, controlling tumor-associated angiogenesis is a promising tactic in limiting cancer progression. Melatonin has been suggested to inhibit angiogenesis in cancers, although this effect h...

Anti-angiogenesis is one of the important ways to control tumor growth and metastasis, and searching for anti-angiogenesis herbs targeting tumor angiogenesis has become a hot topic in both basic and clinical research for tumor. Utilizing the traditional Chinese medicine theory, authors of this article discussed the feasibility and research of anti-angiogenesis effect of Chinese medicine on tumo...

Although the function of vascular endothelial growth factor in the induction of tumor angiogenesis is well understood, the role of a second group of angiogenic factors, the fibroblast growth factors (FGFs), remains elusive. We used a recombinant adenovirus expressing soluble FGF receptor (AdsFGFR) to interfere with FGF function in tumor angiogenesis. AdsFGFR repressed endothelial cell prolifera...

Tumor Therapy In article number 2106606, Nan Qin, Tiger H. Tao, and co-workers report a heterogenous silk microneedle patch to spatiotemporally sequentially deliver multiple therapeutic drugs for hemostasis, anti-angiogenesis, apoptosis of brain tumor cells. Drug release kinetics are well-defined by tuning the crosslinking degree applying trigger transcranial NIR-light irradiation. This biodegr...

When a tracer, such as Gd-doped or iodinated extracellular contrast, is introduced into the blood stream of a patient its transport through the vascular system, heart and lungs and eventual excretion via the kidneys is a well-established process [1,2]. At the level of the imaging voxel (for example, in the centre of a breast tumor) we can only speculate as to the precise nature of the tracer ki...