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Article

Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft

  • Authors:
    • Jiyong Kwak
    • Jin-Kyoung Shim
    • Dong Seok Kim
    • Ji-Hyun Lee
    • Junjeong Choi
    • Junseong Park
    • Kyoung-Jin Shin
    • Se-Hoon Kim
    • Pilnam Kim
    • Yong-Min Huh
    • Eui Hyun Kim
    • Jong Hee Chang
    • Sun Ho Kim
    • Seok-Gu Kang
  • View Affiliations / Copyright

    Affiliations: Department of Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea, Department of Neurosurgery, Brain Tumor Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea, Department of Pharmacy, College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Republic of Korea, Department of Forensic Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea, Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea, Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea, Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
  • Pages: 569-578
    |
    Published online on: June 1, 2016
       https://doi.org/10.3892/ijo.2016.3554
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Abstract

The existence of tumorspheres (TSs) might confer treatment resistance to pineoblastoma (PB). The existence of PB TSs with cellular immortalization potential has not yet been reported. We developed a procedure for isolating TSs from recurrent PB (rPB) and tested whether their properties made them suitable for use as a patient-derived xenograft (PDX). Immunocytochemical staining, RT-PCR and quantitative real-time PCR showed that, among stemness proteins, CD133, musashi and podoplanin were expressed at elevated levels in rPB TSs, but nestin was not. rPB TSs cultured under neuro-glial differentiation conditions expressed TUBB3, but not GFAP, MBP or NeuN. Unlike glioblastoma TSs, rPB TSs showed no clear evidence of invasion in 3D invasion assay or increased expression of genes associated with epithelial-mesenchymal transition. An orthotopic xenograft showed that tumor xenografts replicated the histopathological features of the patient tumor and expressed similar genome profiles, as determined by short tandem repeat genotyping. These data demonstrate the isolation and the characterization of rPB TSs for the first time. Using an orthotopic xenograft, we showed that rPB TSs could replicate the patient tumor, demonstrating their potential as a PDX for precision medicine.
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Copy and paste a formatted citation
Spandidos Publications style
Kwak J, Shim J, Kim DS, Lee J, Choi J, Park J, Shin K, Kim S, Kim P, Huh Y, Huh Y, et al: Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft. Int J Oncol 49: 569-578, 2016.
APA
Kwak, J., Shim, J., Kim, D.S., Lee, J., Choi, J., Park, J. ... Kang, S. (2016). Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft. International Journal of Oncology, 49, 569-578. https://doi.org/10.3892/ijo.2016.3554
MLA
Kwak, J., Shim, J., Kim, D. S., Lee, J., Choi, J., Park, J., Shin, K., Kim, S., Kim, P., Huh, Y., Kim, E. H., Chang, J. H., Kim, S. H., Kang, S."Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft". International Journal of Oncology 49.2 (2016): 569-578.
Chicago
Kwak, J., Shim, J., Kim, D. S., Lee, J., Choi, J., Park, J., Shin, K., Kim, S., Kim, P., Huh, Y., Kim, E. H., Chang, J. H., Kim, S. H., Kang, S."Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft". International Journal of Oncology 49, no. 2 (2016): 569-578. https://doi.org/10.3892/ijo.2016.3554
Copy and paste a formatted citation
x
Spandidos Publications style
Kwak J, Shim J, Kim DS, Lee J, Choi J, Park J, Shin K, Kim S, Kim P, Huh Y, Huh Y, et al: Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft. Int J Oncol 49: 569-578, 2016.
APA
Kwak, J., Shim, J., Kim, D.S., Lee, J., Choi, J., Park, J. ... Kang, S. (2016). Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft. International Journal of Oncology, 49, 569-578. https://doi.org/10.3892/ijo.2016.3554
MLA
Kwak, J., Shim, J., Kim, D. S., Lee, J., Choi, J., Park, J., Shin, K., Kim, S., Kim, P., Huh, Y., Kim, E. H., Chang, J. H., Kim, S. H., Kang, S."Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft". International Journal of Oncology 49.2 (2016): 569-578.
Chicago
Kwak, J., Shim, J., Kim, D. S., Lee, J., Choi, J., Park, J., Shin, K., Kim, S., Kim, P., Huh, Y., Kim, E. H., Chang, J. H., Kim, S. H., Kang, S."Isolation and characterization of tumorspheres from a recurrent pineoblastoma patient: Feasibility of a patient-derived xenograft". International Journal of Oncology 49, no. 2 (2016): 569-578. https://doi.org/10.3892/ijo.2016.3554
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