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Review
. 2022 Apr 7;20(1):49.
doi: 10.1186/s12964-022-00838-y.

Cancer combination therapies by angiogenesis inhibitors; a comprehensive review

Affiliations
Review

Cancer combination therapies by angiogenesis inhibitors; a comprehensive review

Mohammad Javed Ansari et al. Cell Commun Signal. .

Abstract

Abnormal vasculature is one of the most conspicuous traits of tumor tissue, largely contributing to tumor immune evasion. The deregulation mainly arises from the potentiated pro-angiogenic factors secretion and can also target immune cells' biological events, such as migration and activation. Owing to this fact, angiogenesis blockade therapy was established to fight cancer by eliminating the nutrient and oxygen supply to the malignant cells by impairing the vascular network. Given the dominant role of vascular-endothelium growth factor (VEGF) in the angiogenesis process, the well-known anti-angiogenic agents mainly depend on the targeting of its actions. However, cancer cells mainly show resistance to anti-angiogenic agents by several mechanisms, and also potentiated local invasiveness and also distant metastasis have been observed following their administration. Herein, we will focus on clinical developments of angiogenesis blockade therapy, more particular, in combination with other conventional treatments, such as immunotherapy, chemoradiotherapy, targeted therapy, and also cancer vaccines. Video abstract.

Keywords: Angiogenesis; Anti-angiogenic agents; Combination therapy; Resistance; Tumor.

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Conflict of interest statement

There is no competing interests.

Figures

Fig. 1
Fig. 1
The central role of VEGF in tumor angiogenesis. The VEGF induces angiogenesis in tumor cells following interaction with responding receptor, VEGFR2, on tumor cells and subsequently by activating various signaling axes. In contrast, targeting VEGF/VEGFR2 using TKI or monoclonal anti-body could be applied to fence tumor angiogenesis and development
Fig. 2
Fig. 2
The contrast effects of immune cells found in TME on tumor progress. While TH2 and M2 macrophages convince tumor angiogenesis, TH1 and M1 macrophage suppress tumor angiogenesis by secreting a diversity of cytokines
Fig. 3
Fig. 3
Clinical trials based on cancer therapy by anti-angiogenic agents registered in ClinicalTrials.gov (October 2021). The schematic exemplifies clinical trials utilizing anti-angiogenic agents depending on the study status (A), study phase (B), study location (C), and condition (D) in cancer patients

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