Cited by 89Sarcoma Diagnosis and TreatmentAngiogenesis and VEGF in CancerCancer Immunotherapy and Biomarkers

Apatinib inhibits migration and invasion as well as PD-L1 expression in osteosarcoma by targeting STAT3

Zheng, Bingxin, Ren, Tingting, Huang, Yi, Guo, Wei·2018·Biochemical and Biophysical Research Communications

Abstract

The cure rate of osteosarcoma has not improved in the past 30 years. The new treatments and drugs is urgently needed, especially for metastatic osteosarcoma. Anti-angiogenesis therapy and immunotherapy has got promising anti-tumor effects in various tumors. It is hypothesised that combining checkpoint inhibitor immunotherapies with antiangiogenic treatment may have a synergistic effect and enhance the efficacy of both treatments. However, its underlying mechanism remain largely uninvestigated. To investigate the clinical significance of vascular endothelial growth factor receptor-2 (VEGFR2) and programmed death ligand-1 (PD-L1) in osteosarcoma, we analyzes their expression levels in 93 osteosarcoma specimens by immunohistochemistry. Meanwhile, we analyzes their correlation with the metastatic behavior and overall survival (OS). We also investigate the effects of Apatinib on migration and invasion of osteosarcoma cells and its underlying mechanism in vitro and in vivo. In our study, the positive rates of the VEGFR2 and PD-L1 expression are 64.5% (60/93) and 35.5% (33/93), respectively. A significant correlation is detected between VEGFR2 and PD-L1 expression (P = 0.009). Receiver-operating characteristic (ROC) curves analysis indicates the predictive value of the two markers in tumor metastasis, and both PD-L1 and VEGFR2 are negatively correlated with OS. Transwell assays reveals that VEGFR2 inhibition attenuates migration and invasion of osteosarcoma cells. Mechanistically, we demonstrate that Apatinib attenuates migration and invasion by suppressing epithelial-mesenchymal transition (EMT) and inactivating STAT3. Additionally, Apatinib reduces PD-L1 expression in osteosarcoma cells. Apatinib markedly weakens pulmonary metastatic potential of osteosarcoma in vivo. In conclusion, our study reveals a pro-metastatic functional mechanism for VEGFR2 in osteosarcoma. Furthermore, we demonstrate that Apatinib exerts anti-tumor effect not only through antiangiogenic effect, but also via suppressing immune escape, which may represent a potential therapeutic target for metastatic osteosarcoma.

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Crossref · 10.1016/j.bbrc.2017.12.032

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  • Bevacizumab and other VEGFA signaling suppressors are associated with PD-L1 downregulation by malignant and myeloid cells in preclinical cancer models.

    “PD-L1 downregulation by malignant and myeloid cells”

    From Immunomodulation by targeted anticancer agents (2021) · cites this paper as Zheng et al., 2018

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Authors
Zheng, B., Ren, T., Huang, Y., & Guo, W.
Affiliations
Peking University People's Hospital (CN)
Corresponding author
Guo, Wei
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2018-01
Volume
495
Issue
2
Pages
1695-1701
ISSN
0006-291X (ISSN-L)
OpenAlex
W2773643761
Cited by
89
References
25
Citations by year
2026: 1 · 2025: 5 · 2024: 6 · 2023: 9 · 2022: 13 · 2021: 16 · 2020: 22 · 2019: 13 · 2018: 4
FWCI
8.82
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (81572633, 81472509)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Sarcoma Diagnosis and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
Keywords
apatinib, osteosarcoma, VEGFR2, PD-L1, STAT3, metastasis, cell migration and invasion, epithelial-mesenchymal transition, anti-angiogenic therapy, immune evasion, lung metastasis, overall survival, predictive biomarkers
MeSH terms
Animals, Antineoplastic Agents, Bone Neoplasms, Cell Movement, Female, Humans, Immunohistochemistry, Lung Neoplasms, Mice, Inbred BALB C, Mice, Nude, Neoplasm Invasiveness, Pyridines, Osteosarcoma, Biomarkers, Tumor, Xenograft Model Antitumor Assays, Vascular Endothelial Growth Factor Receptor-2, Cell Line, Tumor, STAT3 Transcription Factor, Mice, Epithelial-Mesenchymal Transition, B7-H1 Antigen

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