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Updated: Nov 18, 2025

Author Spotlight: Advancing Cancer Associated Thrombosis Research in Rodent Models
Published on: January 5, 2024
Blocking podoplanin inhibits platelet activation and decreases cancer-associated venous thrombosis
Xia Wang1, Biao Liu1, Mengqiao Xu2
1The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou 215006, Jiangsu, China.
Background:
Patients with cancer are at a high risk of venous thromboembolism (VTE), studies have shown that high expression of podoplanin (PDPN) in tumors is associated with increased risk of VTE.
Methods:
Two human malignant cell lines (NCI-H226 and C8161) expressing high levels of PDPN were selected to explore the role of platelet in cancer-associated venous thrombosis in vitro and in vivo. Immunohistochemical staining using anti-PDPN antibody was performed in the pulmonary carcinoma patients.
Results:
Both NCI-H226 and C8161 cells expressing high PDPN triggered platelet activation via CLEC-2 in vitro, which was abrogated by an anti-PDPN antibody SZ-168. Furthermore, the in vivo study revealed that injection of CHO-PDPN or C8161 in two mouse model of venous thrombosis activated platelets, increased platelet counts and enhanced thrombosis. More importantly, PDPN-enhanced thrombosis was reduced in mice treated with SZ168. A total of 63.3% tumor specimens stained positive for PDPN. High PDPN expression was associated with an increased risk of VTE and poor prognosis.
Conclusions:
PDPN expression in tumors induced platelet activation and was related to a high risk of VTE via platelet activation. SZ168 inhibited PDPN-induced platelet activation in vitro and decreased the incidence of VTE in mice.
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