Specific Tyrosine Kinase Inhibitors Regulate Human Osteosarcoma Cells In vitro

  • Patrick J. Messerschmitt
  • Ashley N. Rettew
  • Robert E. Brookover
  • Ryan M. Garcia
  • Patrick J. Getty
  • Edward M. Greenfield
Symposium: Molecular Genetics in Sarcoma

DOI: 10.1007/s11999-008-0338-9

Cite this article as:
Messerschmitt, P.J., Rettew, A.N., Brookover, R.E. et al. Clin Orthop Relat Res (2008) 466: 2168. doi:10.1007/s11999-008-0338-9

Abstract

Inhibitors of specific tyrosine kinases are attractive lead compounds for development of targeted chemotherapies for many tumors, including osteosarcoma. We asked whether inhibition of specific tyrosine kinases would decrease the motility, colony formation, and/or invasiveness by human osteosarcoma cell lines (TE85, MNNG, 143B, SAOS-2, LM-7). An EGF-R inhibitor reduced motility of all five cell lines by 50% to 80%. In contrast, an IGF-1R inhibitor preferentially reduced motility by 42% in LM-7 cells and a met inhibitor preferentially reduced motility by 80% in MNNG cells. The inhibitors of EGF-R, IGF-1R, and met reduced colony formation by more than 80% in all tested cell lines (TE85, MNNG, 143B). The EGF-R inhibitor reduced invasiveness by 62% in 143B cells. The JAK inhibitor increased motility of SAOS-2 and LM7 cells without affecting colony formation or invasiveness. Inhibitors of HER-2, NGF-R, and PDGF-Rs did not affect motility, invasiveness, or colony formation. These results support the hypothesis that specific tyrosine kinases regulate tumorigenesis and/or metastasis in osteosarcoma.

Supplementary material

Copyright information

© The Association of Bone and Joint Surgeons 2008

Authors and Affiliations

  • Patrick J. Messerschmitt
    • 1
  • Ashley N. Rettew
    • 1
    • 2
  • Robert E. Brookover
    • 1
  • Ryan M. Garcia
    • 1
  • Patrick J. Getty
    • 1
  • Edward M. Greenfield
    • 1
    • 2
    • 3
  1. 1.Department of Orthopaedic SurgeryUniversity Hospitals Case Medical Center, Case Western Reserve UniversityClevelandUSA
  2. 2.Department of PathologyUniversity Hospitals Case Medical Center, Case Western Reserve UniversityClevelandUSA
  3. 3.Department of Physiology & BiophysicsUniversity Hospitals Case Medical Center, Case Western Reserve UniversityClevelandUSA

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