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Accumulation of tissue factor in endothelial cells promotes cellular apoptosis through over-activation of Src1 and involves β1-integrin signalling (2019)
Journal Article
Ethaeb, A. M., Mohammad, M. A., Madkhali, Y., Maraveyas, A., Featherby, S., Greenman, J., & Ettelaie, C. (in press). Accumulation of tissue factor in endothelial cells promotes cellular apoptosis through over-activation of Src1 and involves β1-integrin signalling. Apoptosis, 25, https://doi.org/10.1007/s10495-019-01576-2

Accumulation of tissue factor (TF) within cells leads to cellular apoptosis mediated through p38 and p53 pathways. In this study, the involvement of Src1 in the induction of TF-mediated cell apoptosis, and the mechanisms of Src1 activation were inves... Read More about Accumulation of tissue factor in endothelial cells promotes cellular apoptosis through over-activation of Src1 and involves β1-integrin signalling.

Apixaban suppresses the release of TF-positive microvesicles and restrains cancer cell proliferation through directly inhibiting TF-fVIIa activity (2019)
Journal Article
Featherby, S., Madkhali, Y., Maraveyas, A., & Ettelaie, C. (in press). Apixaban suppresses the release of TF-positive microvesicles and restrains cancer cell proliferation through directly inhibiting TF-fVIIa activity. Thrombosis and haemostasis, https://doi.org/10.1055/s-0039-1692682

The activation of protease activated receptor (PAR)-2 by factor Xa (fXa) promotes the release of tissue factor-positive microvesicles (TF+MV), and contributes to proliferation in cancer cells. This study examined the ability of direct oral anticoagul... Read More about Apixaban suppresses the release of TF-positive microvesicles and restrains cancer cell proliferation through directly inhibiting TF-fVIIa activity.

The Ratio of Factor VIIa:Tissue Factor Content within Microvesicles Determines the Differential Influence on Endothelial Cells (2019)
Journal Article
Madkhali, Y., Featherby, S., Collier, M., Maraveyas, A., Greenman, J., & Ettelaie, C. (2019). The Ratio of Factor VIIa:Tissue Factor Content within Microvesicles Determines the Differential Influence on Endothelial Cells. TH Open, 03(02), e132-e145. https://doi.org/10.1055/s-0039-1688934

Tissue factor (TF)-positive microvesicles from various sources can promote cellular proliferation or alternatively induce apoptosis, but the determining factors are unknown. In this study the hypothesis that the ratio of fVIIa:TF within microvesicles... Read More about The Ratio of Factor VIIa:Tissue Factor Content within Microvesicles Determines the Differential Influence on Endothelial Cells.

Low molecular weight heparin and direct oral anticoagulants influence tumour formation, growth, invasion and vascularisation by separate mechanisms (2019)
Journal Article
Featherby, S., Xiao, Y. P., Ettelaie, C., Nikitenko, L. L., Greenman, J., & Maraveyas, A. (2019). Low molecular weight heparin and direct oral anticoagulants influence tumour formation, growth, invasion and vascularisation by separate mechanisms. Scientific reports, 9(1), https://doi.org/10.1038/s41598-019-42738-1

The bidirectional association between coagulation and cancer has been established. However, anticoagulant therapies have been reported to have beneficial outcomes by influencing the vascularisation of the tumours. In this study the influence of a set... Read More about Low molecular weight heparin and direct oral anticoagulants influence tumour formation, growth, invasion and vascularisation by separate mechanisms.

Alteration in endothelial permeability occurs in response to the activation of PAR2 by factor Xa but not directly by the TF-factor VIIa complex (2019)
Journal Article
Benelhaj, N. E., Maraveyas, A., Featherby, S., Collier, M. E., Johnson, M. J., & Ettelaie, C. (2019). Alteration in endothelial permeability occurs in response to the activation of PAR2 by factor Xa but not directly by the TF-factor VIIa complex. Thrombosis Research, 175, 13-20. https://doi.org/10.1016/j.thromres.2019.01.009

Alterations in the endothelial permeability occur in response to the activation of coagulation mechanisms in order to control clot formation. The activation of the protease activated receptors (PAR) can induce signals that regulate such cellular resp... Read More about Alteration in endothelial permeability occurs in response to the activation of PAR2 by factor Xa but not directly by the TF-factor VIIa complex.

Investigation of the filamin A-Dependent mechanisms of tissue factor incorporation into microvesicles (2017)
Journal Article
Collier, M. E. W., Ettelaie, C., Goult, B. T., Maraveyas, A., & Goodall, A. H. (2017). Investigation of the filamin A-Dependent mechanisms of tissue factor incorporation into microvesicles. Thrombosis and haemostasis, 117(11), 2034-2044. doi:10.1160/TH17-01-0009

We have previously shown that phosphorylation of tissue factor (TF) at Ser253 increases the incorporation of TF into microvesicles (MVs) following protease-activated receptor 2 (PAR2) activation through a process involving filamin-A, whereas Ser258 p... Read More about Investigation of the filamin A-Dependent mechanisms of tissue factor incorporation into microvesicles.

Tissue factor-bearing microparticles and inflammation: a potential mechanism for the development of venous thromboembolism in cancer (2017)
Journal Article
Date, K., Ettelaie, C., & Maraveyas, A. (2017). Tissue factor-bearing microparticles and inflammation: a potential mechanism for the development of venous thromboembolism in cancer. Journal of thrombosis and haemostasis : JTH, 15(12), 2289-2299. https://doi.org/10.1111/jth.13871

© 2017 International Society on Thrombosis and Haemostasis Summary: Cancer is associated with an increased risk of venous thromboembolism (VTE); the exact mechanisms for the induction of VTE remain to be fully elucidated, but it is widely acknowledge... Read More about Tissue factor-bearing microparticles and inflammation: a potential mechanism for the development of venous thromboembolism in cancer.

Peptidyl-prolyl isomerase 1 (Pin1) preserves the phosphorylation state of tissue factor and prolongs its release within microvesicles (2017)
Journal Article
Ettelaie, C., Collier, M., Featherby, S., Greenman, J., & Maraveyas, A. (2017). Peptidyl-prolyl isomerase 1 (Pin1) preserves the phosphorylation state of tissue factor and prolongs its release within microvesicles. BBA - Molecular Cell Research, 1865(1), 12-24. doi:10.1016/j.bbamcr.2017.09.016

© 2017 Elsevier B.V. The exposure and release of TF is regulated by post-translational modifications of its cytoplasmic domain. Here, the potential of Pin1 to interact with the cytoplasmic domain of TF, and the outcome on TF function was examined. MD... Read More about Peptidyl-prolyl isomerase 1 (Pin1) preserves the phosphorylation state of tissue factor and prolongs its release within microvesicles.

Oligoubiquitination of tissue factor on Lys255 promotes Ser253-dephosphorylation and terminates TF release (2016)
Journal Article
Ettelaie, C., Collier, M. E., Featherby, S., Greenman, J., & Maraveyas, A. (2016). Oligoubiquitination of tissue factor on Lys255 promotes Ser253-dephosphorylation and terminates TF release. BBA - Molecular Cell Research, 1863(11), 2846-2857. doi:10.1016/j.bbamcr.2016.09.005

Restriction of tissue factor (TF) activity at the cell surface and TF release are critical for prevention of excessive coagulation. This study examined the regulation of TF dephosphorylation and its release through ubiquitination. A plasmid containin... Read More about Oligoubiquitination of tissue factor on Lys255 promotes Ser253-dephosphorylation and terminates TF release.

Biomarkers of coronary endothelial health: correlation with invasive measures of collateral function, flow and resistance in chronically occluded coronary arteries and the effect of recanalization (2016)
Journal Article
Ladwiniec, A., Ettelaie, C., Cunnington, M. S., Rossington, J., Thackray, S., Alamgir, F., & Hoye, A. (2016). Biomarkers of coronary endothelial health: correlation with invasive measures of collateral function, flow and resistance in chronically occluded coronary arteries and the effect of recanalization. Coronary Artery Disease, 27(4), 287-294. https://doi.org/10.1097/mca.0000000000000360

Objectives: In the presence of a chronically occluded coronary artery, the collateral circulation matures by a process of arteriogenesis; however, there is considerable variation between individuals in the functional capacity of that collateral netwo... Read More about Biomarkers of coronary endothelial health: correlation with invasive measures of collateral function, flow and resistance in chronically occluded coronary arteries and the effect of recanalization.

Analysis of the potential of cancer cell lines to release tissue factor-containing microvesicles: correlation with tissue factor and PAR2 expression (2016)
Journal Article
Ettelaie, C., Collier, M. E. W., Featherby, S., Benelhaj, N. E., Greenman, J., & Maraveyas, A. (2016). Analysis of the potential of cancer cell lines to release tissue factor-containing microvesicles: correlation with tissue factor and PAR2 expression. Thrombosis journal, 14(2), https://doi.org/10.1186/s12959-016-0075-3

Background Despite the association of cancer-derived circulating tissue factor (TF)-containing microvesicles and hypercoagulable state, correlations with the incidence of thrombosis remain unclear. Methods In this study the upregulation of TF re... Read More about Analysis of the potential of cancer cell lines to release tissue factor-containing microvesicles: correlation with tissue factor and PAR2 expression.

Accumulation of tissue factor in endothelial cells induces cell apoptosis, mediated through p38 and p53 activation (2015)
Journal Article
ElKeeb, A. M., Collier, M. E. W., Maraveyas, A., & Ettelaie, C. (2015). Accumulation of tissue factor in endothelial cells induces cell apoptosis, mediated through p38 and p53 activation. Thrombosis and haemostasis, 114(2), 364-378. https://doi.org/10.1160/th14-09-0795

We previously reported that high levels of tissue factor (TF) can induce cellular apoptosis in endothelial. In this study, TF-mediated mechanisms of induction of apoptosis were explored. Endothelial cells were transfected to express wild-type TF. Add... Read More about Accumulation of tissue factor in endothelial cells induces cell apoptosis, mediated through p38 and p53 activation.

Extracellular vesicles, tissue factor, cancer and thrombosis – discussion themes of the ISEV 2014 Educational Day (2015)
Journal Article
Gardiner, C., Harrison, P., Belting, M., Böing, A., Campello, E., Carter, B. S., …Nieuwland, R. (2015). Extracellular vesicles, tissue factor, cancer and thrombosis – discussion themes of the ISEV 2014 Educational Day. Journal of Extracellular Vesicles, 4(1), 1-14. doi:10.3402/jev.v4.26901

Although the association between cancer and venous thromboembolism (VTE) has long been known, the mechanisms are poorly understood. Circulating tissue factor-bearing extracellular vesicles have been proposed as a possible explanation for the increase... Read More about Extracellular vesicles, tissue factor, cancer and thrombosis – discussion themes of the ISEV 2014 Educational Day.

Characterization of physical properties of tissue factor-containing microvesicles and a comparison of ultracentrifuge-based recovery procedures (2014)
Journal Article
Ettelaie, C., Collier, M., Maraveyas, A., & Ettelaie, R. (2014). Characterization of physical properties of tissue factor-containing microvesicles and a comparison of ultracentrifuge-based recovery procedures. Journal of Extracellular Vesicles, 3(1), 1-14. https://doi.org/10.3402/jev.v3.23592

© 2014 Camille Ettelaie et al. Microvesicles were isolated from the conditioned media of 3 cell lines (MDA-MB-231, AsPC-1 and A375) by ultracentrifugation at a range of relative centrifugal forces, and the tissue factor (TF) protein and activity, mic... Read More about Characterization of physical properties of tissue factor-containing microvesicles and a comparison of ultracentrifuge-based recovery procedures.

Filamin-A is required for the incorporation of tissue factor into cell-derived microvesicles (2013)
Journal Article
Collier, M. E. W., Ettelaie, C., & Maraveyas, A. (2014). Filamin-A is required for the incorporation of tissue factor into cell-derived microvesicles. Thrombosis and haemostasis, 111(4), 647-655. https://doi.org/10.1160/TH13-09-0769

We previously reported that the incorporation of tissue factor (TF) into cell-derived microvesicles (MVs) is regulated by the phosphorylation of the cytoplasmic domain of TF. Since the cytoskeletal protein filamin-A is known to bind to the cytoplasmi... Read More about Filamin-A is required for the incorporation of tissue factor into cell-derived microvesicles.

Microparticle-associated tissue factor is recycled by endothelial cells resulting in enhanced surface tissue factor activity (2013)
Journal Article
Collier, M. E. W., Mah, P., Xiao, Y., Maraveyas, A., & Ettelaie, C. (2013). Microparticle-associated tissue factor is recycled by endothelial cells resulting in enhanced surface tissue factor activity. Thrombosis and haemostasis, 110(5), 966-976. doi:10.1160/TH13-01-0055

In this study the uptake of tissue factor (TF)-positive microparticles by endothelial cells and the recycling of the TF component were examined. Human dermal blood endothelial cells (HDBEC) were incubated with microparticles derived from cancer cell... Read More about Microparticle-associated tissue factor is recycled by endothelial cells resulting in enhanced surface tissue factor activity.

p38 alpha phosphorylates serine 258 within the cytoplasmic domain of tissue factor and prevents its incorporation into cell-derived microparticles (2013)
Journal Article
Ettelaie, C., ElKeeb, A. M., Maraveyas, A., & Collier, M. E. W. (2013). p38 alpha phosphorylates serine 258 within the cytoplasmic domain of tissue factor and prevents its incorporation into cell-derived microparticles. BBA - Molecular Cell Research, 1833(3), (613-621). doi:10.1016/j.bbamcr.2012.11.010. ISSN 0167-4889

We previously showed that the phosphorylation of Ser253 within the cytoplasmic domain of human tissue factor (TF) initiates the incorporation and release of this protein into cell-derived microparticles. Furthermore, subsequent phosphorylation of Ser... Read More about p38 alpha phosphorylates serine 258 within the cytoplasmic domain of tissue factor and prevents its incorporation into cell-derived microparticles.

Enhanced binding of tissue factor-microparticles to collagen-IV and fibronectin leads to increased tissue factor activity in vitro (2012)
Journal Article
Ettelaie, C., Collier, M. E. W., Mei, M. P., Xiao, Y. P., & Maraveyas, A. (2013). Enhanced binding of tissue factor-microparticles to collagen-IV and fibronectin leads to increased tissue factor activity in vitro. Thrombosis and haemostasis, 109(1), (61-71). doi:10.1160/TH12-05-0279

The role of tissue factor (TF)-containing microparticles in clot propagation has been established, but the ability of circulating microparticles to initiate coagulation has been disputed. However, TF-bearing microparticles, particularly endothelial-m... Read More about Enhanced binding of tissue factor-microparticles to collagen-IV and fibronectin leads to increased tissue factor activity in vitro.

Low molecular weight heparin downregulates tissue factor expression and activity by modulating growth factor receptor-mediated induction of nuclear factor-κB (2011)
Journal Article
Ettelaie, C., Fountain, D., Collier, M. E. W., ElKeeb, A. M., Xiao, Y. P., & Maraveyas, A. (2011). Low molecular weight heparin downregulates tissue factor expression and activity by modulating growth factor receptor-mediated induction of nuclear factor-κB. Biochimica et Biophysica Acta (BBA): Molecular Basis of Disease, 1812(12), 1591-1600. https://doi.org/10.1016/j.bbadis.2011.09.007

Treatment of cancer patients with low molecular weight heparin (LMWH) appears to have beneficial effects. In this study, the influence of low molecular weight heparin (LMWH) on tissue factor (TF) expression and activity in five cell lines from variou... Read More about Low molecular weight heparin downregulates tissue factor expression and activity by modulating growth factor receptor-mediated induction of nuclear factor-κB.

Gemcitabine versus gemcitabine plus dalteparin thromboprophylaxis in pancreatic cancer (2011)
Journal Article
Ettelaie, C., Gardiner, E., Maraveyas, A., Bozas, G., Fyfe, D., Lofts, F., …Wedgwood, K. (2012). Gemcitabine versus gemcitabine plus dalteparin thromboprophylaxis in pancreatic cancer. European Journal of Cancer, 48(9), (1283-1292). doi:10.1016/j.ejca.2011.10.017. ISSN 1879-0852

Background: Annualised figures show an up to 7-fold higher incidence of vascular thromboembolism (VTE) in patients with advanced pancreatic cancer (APC) compared to other common malignancies. Concurrent VTE has been shown to confer a worse overall pr... Read More about Gemcitabine versus gemcitabine plus dalteparin thromboprophylaxis in pancreatic cancer.


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