Cancer Management and Research (Oct 2020)

Construction and Characterization of KRAS Immune Lipid Magnetic Balls for Colorectal Cancer Circulating Tumor Cells

  • Feng C,
  • Wang J,
  • Yang X,
  • Zang X,
  • Zhou H,
  • Zhang E,
  • Li H,
  • Liu B,
  • Chen S,
  • Wang Y,
  • Wang P,
  • Gao L,
  • Liu J

Journal volume & issue
Vol. Volume 12
pp. 10067 – 10075

Abstract

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Chengbao Feng,1 Jingjing Wang,1 Xue Yang,2 Xuefang Zang,1 Haikun Zhou,1 Erying Zhang,1 Haifei Li,1 Bo Liu,1 Shumin Chen,1 Ying Wang,1 Peng Wang,1 Lixue Gao,1 Jinyan Liu1 1Department of Medical Oncology, No. 2 Hospital of Baoding, Baoding City, People’s Republic of China; 2Baoding Children’s Hospital, Baoding City, People’s Republic of ChinaCorrespondence: Jinyan Liu Email [email protected]: The purpose of this study was to prepare and characterize a lipid magnetic ball modified with KRAS antibodies on the surface and to isolate circulating tumor cells of colorectal cancer with KRAS mutations.Methods: The microemulsion method was used to form lipid bilayers to encapsulate Fe3O4 nanoparticles with superparamagnetism to form lipid magnetic balls, and KRAS antibodies were formed on the surface to form KRAS immune lipid magnetic balls.Results: Compared with traditional EpCAM antibody-modified lipid magnetic balls, it can effectively improve the capture ability of colorectal cancer circulating tumor cells with KRAS mutation, the capture rate reaches 92.9%, and the capture results are consistent with clinical diagnosis and pathology.Conclusion: Our results showed that KRAS antibody-modified lipid magnetic balls can be used in the diagnosis and treatment of KRAS colorectal cancer.Keywords: colorectal cancer, circulating tumor cells, KRAS mutation, lipid magnetic balls

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