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Combination of a novel microtubule inhibitor MBRI-001 and gemcitabine synergistically induces cell apoptosis by increasing DNA damage in pancreatic cancer cell lines

  • Yuqian Liu
  • Ruochen Zang
  • Feifei Li
  • Chuanqin Shi
  • Jianchun Zhao
  • Lili Zhong
  • Xin Wang
  • Jinbo YangEmail author
  • Wenbao LiEmail author
PRECLINICAL STUDIES
  • 39 Downloads

Summary

Pancreatic cancer (PC) is a highly malignant cancer with poor prognosis. Although gemcitabine (GEM; 2′,2′-difluoro-deoxycytidine) has been used as the first-line chemotherapeutic agent in PC treatment for decades, its limited efficacy remains a significant clinical issue, which may be resolved by GEM combination therapy. In this study, we aimed to investigate the anti-tumor effects of MBRI-001 in combination with GEM in BxPC-3 and MIA PaCa-2 human PC cell lines. In vitro and in vivo results indicate that MBRI-001 showed synergistic activity with GEM. GEM induced apoptosis by increasing DNA damage (phosphorylated core histone protein H2AX (γ-H2AX)), MBRI-001 activated mitochondrial-apoptotic pathway (cleaved poly-ADP ribose polymerase (PARP)). Thus, the combination of the two intensified both apoptosis and DNA damage and showed significantly superior anti-tumor activity compared to each agent alone. The adoption of combination of MBRI-001 with GEM may be beneficial as they act synergistically and thus, can be a potential therapeutic choice for improving the prognosis of PC patients in the future.

Keywords

Pancreatic cancer MBRI-001 Gemcitabine DNA damage Apoptosis 

Notes

Funding

This work was supported by “Zhufeng Scholar Program” of Ocean University of China (841412016), and Aoshan Talents Cultivation Program of Qingdao National Laboratory for Marine Science and Technology (No. 2017ASTCP-OS08) to Dr. Wenbao Li.

Compliance with ethical standards

Conflict of interest

All authors declare that there are no conflicts of interest.

Ethical approval

All applicable national and institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Medicine and PharmacyOcean University of ChinaQingdaoChina
  2. 2.Marine Biomedical Research Institute of QingdaoQingdaoChina
  3. 3.Innovation Center for Marine Drug Screening and EvaluationQingdao National Laboratory for Marine Science and TechnologyQingdaoChina

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