Thromb Haemost 2018; 118(10): 1765-1775
DOI: 10.1055/s-0038-1670659
Cellular Haemostasis and Platelets
Georg Thieme Verlag KG Stuttgart · New York

Pro-Coagulant and Pro-Thrombotic Effects of Paclitaxel Mediated by Red Blood Cells

Keunyoung Kim
1  College of Pharmacy, Seoul National University, Seoul, Korea
,
Youn-Kyeong Chang
1  College of Pharmacy, Seoul National University, Seoul, Korea
,
Yiying Bian
1  College of Pharmacy, Seoul National University, Seoul, Korea
,
Ok-Nam Bae
2  College of Pharmacy, Hanyang University, Ansan, Korea
,
Kyung-Min Lim*
3  College of Pharmacy, Ewha Womans University, Seoul, Korea
,
Jin-Ho Chung*
1  College of Pharmacy, Seoul National University, Seoul, Korea
› Author Affiliations
Further Information

Publication History

08 March 2018

08 August 2018

Publication Date:
20 September 2018 (eFirst)

Abstract

Background Paclitaxel is one of the most widely used anti-cancer drugs, but numerous case reports of thrombotic events in the cancer patients using paclitaxel raise concern over its pro-thrombotic risk.

Materials and Methods We investigated whether paclitaxel can elicit pro-thrombotic properties in red blood cells (RBCs) through phosphatidylserine (PS) exposure and microvesicle (MV) release.

Results In freshly isolated human RBCs, paclitaxel induced thrombin generation through PS exposure and MV release, whereas either coagulation factors or platelets were unaffected. Paclitaxel-induced PS exposure in RBC was mediated by scramblase activation which was induced by calcium-independent protein kinase C (PKC)ζ activation. Paclitaxel also increased RBC-endothelial cell adhesion and RBC aggregate formation which can also contribute to thrombosis. Indeed, intravenous administration of paclitaxel to rats induced PS exposure and PKCζ activation in RBCs in vivo which ultimately promoted venous thrombus formation.

Conclusion These results demonstrated that paclitaxel may elicit pro-thrombotic properties in RBCs through PS exposure and MV release, which can ultimately promote thrombus formation.

Authors' Contributions

J.-H. Chung and K.-M. Lim designed the research, analysed data and wrote the article. K. Kim and Y.-K. Chang performed the research, analysed data and wrote the article. Y.-K. Chang, O.-N. Bae and Y. Bian performed research and evaluated data. All authors read and approved the final version of the manuscript.


* Kyung-Min Lim and Jin-Ho Chung have contributed equally as principal researchers to this work.