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Updated: Mar 12, 2026

Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
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Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma

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Expression and function of PIM kinases in osteosarcoma

Shuai Mou1, Guangbin Wang1, Ding Ding2

  • 1Department of Orthopaedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China.

International Journal of Oncology
|November 10, 2016
PubMed

Insights

PIM kinases are frequently expressed in osteosarcoma (OS). PIM1 expression indicates poorer prognosis, and PIM kinase inhibition may offer new therapeutic strategies for OS patients.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • The PIM (provirus integrating site Moloney murine leukemia virus) kinase family, comprising PIM1, PIM2, and PIM3, are serine/threonine protein kinases implicated as oncoproteins in various cancers.
  • The specific role and clinical significance of PIM kinases in osteosarcoma (OS) pathogenesis are not well-established.

Purpose of the Study:

  • To investigate the expression patterns of PIM1, PIM2, and PIM3 in human osteosarcoma.
  • To evaluate the clinical significance of PIM kinase expression in relation to patient prognosis.
  • To determine the biological effects of PIM kinase modulation on osteosarcoma cell behavior.

Main Methods:

  • Immunohistochemical staining was employed to assess PIM kinase expression in 43 primary osteosarcoma tissue samples.
  • Functional studies involved PIM kinase knockdown and overexpression in human osteosarcoma cell lines to analyze effects on proliferation, migration, and invasion.

Main Results:

  • All three PIM kinases (PIM1, PIM2, PIM3) were frequently detected in osteosarcoma tissues.
  • Positive PIM1 expression correlated significantly with poorer overall survival in osteosarcoma patients.
  • PIM kinase inhibition markedly reduced osteosarcoma cell proliferation, migration, and invasiveness.
  • Conversely, PIM kinase overexpression led to enhanced osteosarcoma cell growth and motility.

Conclusions:

  • PIM1 may serve as a valuable prognostic biomarker for osteosarcoma patients.
  • The PIM kinase family plays a significant role in osteosarcoma cell biology, suggesting their potential as therapeutic targets for this malignancy.

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