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Concept

Neovascularization

Publications associées (26)

Sodium thiosulfate, a source of hydrogen sulfide, stimulates endothelial cell proliferation and neovascularization

Georges Wagnières, Jaroslava Joniová

Therapies to accelerate vascular repair are currently lacking. Pre-clinical studies suggest that hydrogen sulfide (H2S), an endogenous gasotransmitter, promotes angiogenesis. Here, we hypothesized that sodium thiosulfate (STS), a clinically relevant source ...

FRONTIERS MEDIA SA2022

Periostin Limits Tumor Response to VEGFA Inhibition

Michele De Palma, Ece Kadioglu, Ioanna Keklikoglou

Resistance to antiangiogenic drugs limits their applicability in cancer therapy. Here, we show that revascularization and progression of pancreatic neuroendocrine tumors (PNETs) under extended vascular-endothelial growth factor A (VEGFA) blockade are depen ...

2018

Reprogramming tumor blood vessels for enhancing immunotherapy

Michele De Palma

Angiogenic blood vessels contribute to generating an immunosuppressive tumor microenvironment, in part by limiting the extravasation of T cells. Functional reprogramming of angiogenic blood vessels, for example through angiopoietin-2 blockade, may improve ...

2017

Microenvironmental regulation of tumour angiogenesis

Michele De Palma, Daniela Biziato

Tumours display considerable variation in the patterning and properties of angiogenic blood vessels, as well as in their responses to anti-angiogenic therapy. Angiogenic programming of neoplastic tissue is a multidimensional process regulated by cancer cel ...

Nature Publishing Group2017

In vivo cerebral metabolism of glioblastoma xenografts assessed with ¹H MRS, ¹³C MRS and ¹⁸F-FDG PET

Marta Lai

Magnetic resonance spectroscopy (MRS) is a powerful tool when studying metabolism in intact and living organs preserving cells in their natural microenvironment with minimal external interference. The unique insights offered by the observation of metabolic ...

EPFL2017

Design principles for therapeutic angiogenic materials

Jeffrey Alan Hubbell, Priscilla Suhasna Maithili Briquez

Despite extensive research, pro-angiogenic drugs have failed to translate clinically, and therapeutic angiogenesis, which has potential in the treatment of various cardiovascular diseases, remains a major challenge. Physiologically, angiogenesis - the proc ...

Nature Publishing Group2016

Antiangiogenic and Anticancer Properties of Bifunctional Ruthenium(II)-p-Cymene Complexes: Influence of Pendant Perfluorous Chains

Paul Joseph Dyson, Patrycja Nowak-Sliwinska, Catherine Marie Amélie Clavel, Emilia Paunescu

Two bifunctional ruthenium(II)-p-cymene complexes with perfluorinated side chains, attached via pyridine ligands, have been evaluated in a series of in vitro and in vivo assays. Their effects on human endothelial (ECRF24 and HUVEC) cells, noncancerous huma ...

Amer Chemical Soc2015

Anticancer Organometallic Osmium(II)-p-cymene Complexes

Paul Joseph Dyson, Rosario Scopelliti, Patrycja Nowak-Sliwinska, Catherine Marie Amélie Clavel, Emilia Paunescu

Osmium compounds are attracting increasing attention as potential anticancer drugs. In this context, a series of bifunctional organometallic osmium(II)-p-cymene complexes functionalized with alkyl or perfluoroalkyl groups were prepared and screened for the ...

Wiley-V C H Verlag Gmbh2015

Long-lasting fibrin matrices ensure stable and functional angiogenesis by highly tunable, sustained delivery of recombinant VEGF(164)

Jeffrey Alan Hubbell, Veronica Sacchi

Clinical trials of therapeutic angiogenesis by vascular endothelial growth factor (VEGF) gene delivery failed to show efficacy. Major challenges include the need to precisely control in vivo distribution of growth factor dose and duration of expression. Re ...

National Academy of Sciences2014

PHD2 regulates arteriogenic macrophages through TIE2 signalling

Michele De Palma, Mario Leonardo Squadrito

Occlusion of the main arterial route redirects blood flow to the collateral circulation. We previously reported that macrophages genetically modified to express low levels of prolyl hydroxylase domain protein 2 (PHD2) display an arteriogenic phenotype, whi ...

Wiley-Blackwell2013

Proteolytic Processing Regulates Placental Growth Factor Activities

Jeffrey Alan Hubbell, Stéphanie Elisabeth Metzger

Placental growth factor (PlGF) is a critical mediator of blood vessel formation, yet mechanisms of its action and regulation are incompletely understood. Here we demonstrate that proteolytic processing regulates the biological activity of PlGF. Specificall ...

Amer Soc Biochemistry Molecular Biology Inc2013

Interfering with UDP-GlcNAc Metabolism and Heparan Sulfate Expression Using a Sugar Analogue Reduces Angiogenesis

Patrycja Nowak-Sliwinska

Heparan sulfate (HS), a long linear polysaccharide, is implicated in various steps of tumorigenesis, including angiogenesis. We successfully interfered with HS biosynthesis using a peracetylated 4-deoxy analogue of the HS constituent GlcNAc and studied the ...

Amer Chemical Soc2013

The promotion of endothelial cell attachment and spreading using FNIII10 fused to VEGF-A(165)

Jeffrey Alan Hubbell, Melody Swartz

Synergy in the downstream signaling pathways of the vascular endothelial growth factor receptor-2 (VEGFR-2) and the integrin alpha v beta 3 is critical for blood vessel formation. Thus, agents that activate both receptors could possess efficient pro-angiog ...

Elsevier2013

Photodynamic therapy for polypoidal choroidal vasculopathy

Hubert van den Bergh, Patrycja Nowak-Sliwinska

The first effective therapy for exudative macular degeneration (AMD) was Photodynamic Therapy (PDT). Diagnosis of the disease was to a large extent by fluorescein angiography (FA). Distinguishing between the leaky choroidal neovessels (CNV) associated with ...

Pergamon-Elsevier Science Ltd2013

Reciprocal interactions between endothelial cells and macrophages in angiogenic vascular niches

Michele De Palma, Mario Leonardo Squadrito

The ability of macrophages to promote vascular growth has been associated with the secretion and local delivery of classic proangiogenic factors (e.g., VEGF-A and proteases). More recently, a series of studies have also revealed that physical contact of ma ...

Elsevier Inc2013

An in vivo neovascularization assay for screening regulators of angiogenesis and assessing their effects on pre-existing vessels

Marcin Stefan Zielinski

Therapeutic regulation of tissue vascularization has appeared as an attractive approach to treat a number of human diseases. In vivo neovascularization assays that reflect physiological and pathological formation of neovessels are important in this effort. ...

Springer Netherlands2012

Angiostatic kinase inhibitors to sustain photodynamic angio-occlusion

Hubert van den Bergh, Patrycja Nowak-Sliwinska, Andrea Brett Gasser, Blaise Lovisa

Targeted angiostatic therapy receives major attention for the treatment of cancer and exudative age-related macular degeneration (AMD). Photodynamic therapy (PDT) has been used as an effective clinical approach for these diseases. Since PDT can cause an an ...

2012

Angiogenesis inhibition by the maleimide-based small molecule GNX-686

Hubert van den Bergh, Georges Wagnières, Patrycja Nowak-Sliwinska

We investigated the anti-angiogenic properties of GNX-686, a newly identified maleimide-based small molecule. In vitro studies on HUVEC showed that GNX-686 inhibited cell growth with an ED50 of 20-25 mu M, while human HeLa tumor cells and non-transformed e ...

Elsevier2012

Pattern Dystrophy With High Intrafamilial Variability Associated With Y141C Mutation In The Peripherin/Rds Gene And Successful Treatment Of Subfoveal Cnv Related To Multifocal Pattern Type With Anti-Vegf (Ranibizumab) Intravitreal Injections

Objective: To identify disease causing mutation in three generations of a Swiss family with pattern dystrophy and high intrafamilial variability of phenotype. To assess the effect of intravitreal ranibizumab injections in the treatment of subfoveal choroid ...

Lippincott Williams & Wilkins2012

Macrophage skewing by Phd2 haplodeficiency prevents ischaemia by inducing arteriogenesis

Michele De Palma, Mario Leonardo Squadrito

PHD2 serves as an oxygen sensor that rescues blood supply by regulating vessel formation and shape in case of oxygen shortage. However, it is unknown whether PHD2 can influence arteriogenesis. Here we studied the role of PHD2 in collateral artery growth by ...

2011