Identification of Abnormal Spindle Microtubule Assembly as a Promising Therapeutic Target for Osteosarcoma

Peng Lin1, Li-Yan Liang1, Yao-Zhong Dong2

  • 1Department of Intensive Care Unit, Yantai Yuhuangding Hospital, Yantai, China.

Orthopaedic Surgery
|October 20, 2020
PubMed
Abstract

Insights

High expression of abnormal spindle microtubule assembly (ASPM) in osteosarcoma promotes tumor growth. Inhibiting ASPM significantly reduced osteosarcoma cell proliferation in vitro and in vivo, suggesting ASPM as a potential therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • Abnormal spindle microtubule assembly (ASPM) is implicated in various cancers.
  • The role of ASPM in osteosarcoma pathogenesis requires further elucidation.

Purpose of the Study:

  • To investigate the expression of ASPM in clinical osteosarcoma tissues.
  • To explore the functional role of ASPM in osteosarcoma cell proliferation and tumor growth in vitro and in vivo.

Main Methods:

  • Immunohistochemistry was used to analyze ASPM expression in 82 osteosarcoma specimens.
  • ASPM knockdown was achieved using shASPM plasmid transfection.
  • Quantitative PCR, Western blot, cell colony assays, MTT assays, and in vivo studies were performed.

Main Results:

  • ASPM was significantly overexpressed in osteosarcoma tissues compared to normal tissues.
  • High ASPM expression correlated positively with tumor size and clinical stage.
  • ASPM depletion inhibited osteosarcoma cell proliferation and tumor growth in vitro and in vivo.

Conclusions:

  • Elevated ASPM expression promotes osteosarcoma proliferation and tumor growth.
  • ASPM represents a potential therapeutic target for osteosarcoma treatment.

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