Mechanisms of adverse effects of anti-VEGF therapy for cancer

Kamba, Tomomi; McDonald, Donald M.

doi:10.1038/sj.bjc.6603813

Cited by 884 publications

(689 citation statements)

References 48 publications

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“…Due to a high degree of complexity the putative relevance and/or crucial contribution of each described pathway in patients is not yet predictable. In the past, the only selective regulation of VEGF, MMPs or HPSE was found to be contradictory 47,48 indicating interactive molecular mechanism of tumor progression far beyond our current knowledge.…”

Section: Discussionmentioning

confidence: 98%

Nuclear heparanase-1 activity suppresses melanoma progression via its DNA-binding affinity

et al. 2015

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Heparanase-1 (HPSE) plays a pivotal role in structural remodeling of the ECM and glycocalyx thus conferring protumorigenic, proangiogenic and prometastatic properties to many cancer entities. In addition to its extracellular function, recent studies suggest an intracellular activity of HPSE with a largely unknown significance during tumor progression. Therefore, we investigated the relevance of HPSE duality in malignant melanoma in vitro as well as in mouse melanoma models basing on the intradermal injection of transfected melanoma cells. In line with its extracellular action, HPSE-deficiency led to a reduced shedding of the glycocalyx accompanied by a reduced availability of VEGF affecting tumor growth and vascularization. In contrast, we measured an elevated expression of the protumorigenic factors pentraxin-3, tissue factor, TNF-and most prominently MMP-9 upon HPSE knockdown. In vivo, HPSE-deficiency was related to increased lymph node metastasis. While inhibition of its extracellular function heparin was unable to block the gene regulatory impact of HPSE we proposed an intracellular mechanism. Immunostainings revealed a counter-staining of HPSE and NF-B in the nucleus suggesting a close relationship between both proteins. This finding was further supported by the discovery of a direct charge-driven molecular interaction between HPSE and DNA by using atomic force microscopy and a co-precipitation approach. Our findings are novel and point towards a dual identity of HPSE in malignant melanoma with a protumorigenic extracellular activity and a tumor suppressive nuclear action. Identification of molecular strategies to shuttle extracellular HPSE into the nuclei of cancer cells envisions new therapeutic options. AbstractHeparanase-1 (HPSE) plays a pivotal role in structural remodeling of the ECM and glycocalyx thus conferring protumorigenic, proangiogenic and prometastatic properties to many cancer entities. In addition to its extracellular function, recent studies suggest an intracellular activity of HPSE with a largely unknown significance during tumor progression.Therefore, we investigated the relevance of HPSE duality in malignant melanoma in vitro as well as in mouse melanoma models basing on the intradermal injection of transfected melanoma cells. In line with its extracellular action, HPSE-deficiency led to a reduced shedding of the glycocalyx accompanied by a reduced availability of VEGF affecting tumor growth and vascularization. In contrast, we measured an elevated expression of the protumorigenic factors pentraxin-3, tissue factor, TNF-α and most prominently MMP-9 upon HPSE knockdown. In vivo, HPSE-deficiency was related to increased lymph node metastasis.While inhibition of its extracellular function heparin was unable to block the gene regulatory impact of HPSE we proposed an intracellular mechanism. Immunostainings revealed a counter-staining of HPSE and NF-κB in the nucleus suggesting a close relationship between both proteins. This finding was further supported by the discovery of a dir...

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Section: Discussionmentioning

confidence: 98%

Nuclear heparanase-1 activity suppresses melanoma progression via its DNA-binding affinity

et al. 2015

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“…Similar to chemotherapy, systemic delivery of ADs to cancer patients in currently routine clinical practice may also affect vascular structures and functions in multiple tissues and organs. The fundamental principle underlying currently available ADs is the objective of blocking functions of one or more angiogenic pathways in tumors (21). However, the excessive amounts of tumor-derived angiogenic factors are often accumulated in the circulation to display broad biological functions on healthy tissues and organs.…”

Section: Discussionmentioning

confidence: 99%

Antiangiogenic agents significantly improve survival in tumor-bearing mice by increasing tolerance to chemotherapy-induced toxicity

Zhang

Hedlund

Lim

et al. 2011

Proc. Natl. Acad. Sci. U.S.A.

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Chemotherapy-induced broad toxicities are the leading cause of the drug-induced mortality in cancer patients. Antiangiogenic drugs (ADs) in combination with chemotherapy are widely used as frontline therapy for the treatment of various human cancers. However, the beneficial mechanisms underlying combination therapy are poorly understood. Here we show that, in several murine tumor models, administration of sunitinib markedly reduced chemotherapyinduced bone marrow toxicity. Intriguingly, in a sequential treatment regimen, delivery of ADs followed by chemotherapy demonstrated superior survival benefits compared with simultaneous administration of two drugs. In murine tumor models, we show that VEGF increased chemotoxicity by synergistically suppressing bone marrow hematopoiesis with cytostatic drugs. These findings shed light on molecular mechanisms by which ADs in combination with chemotherapy produce survival benefits in cancer patients and provide conceptual information guiding future designs of clinical trials, current practice, and optimization of ADs for the treatment of cancer.antiangiogenic therapy | angiogenesis | angiogenic factors | cancer therapy | anemia

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“…In addition, reduction in nitrogen oxide (NO) and prostaglandin I 2 (PG I 2 ) by a VEGF inhibitor can also predispose to thrombosis. 22 Because VTEs is a major source of morbidity and mortality for patients with cancer, determining the risk of VEGFR-TKIs associated VTEs is of special importance. 23,24 However, to our best knowledge, the risk of VTEs with the use of VEGFR-TKIs has not been evaluated.…”

mentioning

confidence: 99%

Risk of venous thromboembolic events associated with VEGFR‐TKIs: A systematic review and meta‐analysis

Min

Shen

et al. 2012

Intl Journal of Cancer

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Vascular endothelial growth factor receptor (VEGFR) tyrosine kinase inhibitors (TKIs) have been widely used in advanced cancers. Concerns have arisen regarding the risk of venous thromboembolism with the use of these drugs. Currently, the contribution of VEGFR-TKIs to venous thromboembolism is still unknown. We performed a meta-analysis to determine the incidence and relative risk (RR) of venous thromboembolism events (VTEs) associated with these agents. Eligible studies included phase II and III prospective trials evaluating US Food and Drug Administration approved VEGFR-TKIs (pazopanib, sunitinib, sorafenib and vandetanib), and data on VTEs were available. Overall incidence rates, RR and 95% confidence intervals (CI) were calculated employing fixed-or random-effects models depending on the heterogeneity of included trials. A total of 14 studies (4,430 patients) were selected for this meta-analysis. The incidence of VTEs related to VEGFR-TKIs was 3% (95%CI: 1.7-5.1%), and there was no statistically significant increase in the risk of VTEs for VEGFR-TKIs versus controls in overall population (RR0.912, 95%CI: 0.617-1.348, p 5 0.643). On subgroup analysis, no significant increase in the risk of VTEs was found among different VEGFR-TKIs or tumor types. No evidence of publication bias was observed. The use of VEGFRTKIs does not significantly increase the risk of VTEs, the risk of VTEs in patients with cancer is driven predominantly by tumor types, host factors and concomitant usage of anticancer agents. These results would provide important information for clinicians who use VEGFR-TKIs to treat patients with solid cancer.

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Mechanisms of adverse effects of anti-VEGF therapy for cancer

Cited by 884 publications

References 48 publications

Nuclear heparanase-1 activity suppresses melanoma progression via its DNA-binding affinity

Nuclear heparanase-1 activity suppresses melanoma progression via its DNA-binding affinity

Antiangiogenic agents significantly improve survival in tumor-bearing mice by increasing tolerance to chemotherapy-induced toxicity

Risk of venous thromboembolic events associated with VEGFR‐TKIs: A systematic review and meta‐analysis

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