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RASSF7 expression and its regulatory roles on apoptosis in human intervertebral disc degeneration

Zhi-Heng Liu1, Jun-Li Huo2, Zhi-Gang Wu3

  • 1Department of Orthopaedics, Xi'an Air Force Hospital, PLA 172 Youyi Eastern Road, Xi'an, P. R. China.

International Journal of Clinical and Experimental Pathology
|February 18, 2016
PubMed

Insights

RASSF7 expression is higher in non-degenerative nucleus pulposus cells than in degenerative cells. Overexpressing RASSF7 reduces apoptosis, suggesting RASSF7

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Apoptosis is a key factor in intervertebral disc degeneration (IDD).
  • RASSF7 is crucial for cell growth and apoptosis.
  • JNK signaling pathway negatively regulates apoptosis via MKK7 activation.

Purpose of the Study:

  • Investigate RASSF7 expression in human degenerative and non-degenerative nucleus pulposus (NP) cells.
  • Determine the relationship between RASSF7, JNK signaling, and NP cell apoptosis.

Main Methods:

  • Harvested NP tissues from IDD patients and healthy controls.
  • Quantified RASSF7 expression using Real-time-PCR and Western blotting.
  • Assessed apoptosis rates following RASSF7 overexpression in degenerative NP cells.

Main Results:

  • RASSF7 expression was significantly higher in non-degenerative NP cells compared to degenerative NP cells.
  • Overexpression of RASSF7 in degenerative NP cells resulted in a reduced apoptosis rate.
  • A correlation between RASSF7 levels and NP cell apoptosis was observed.

Conclusions:

  • RASSF7 expression is downregulated in human intervertebral disc degeneration.
  • RASSF7 plays a protective role against NP cell apoptosis.
  • RASSF7 may serve as a potential therapeutic target for intervertebral disc degeneration.
Keywords:
Intervertebral disc degenerationJNKRASSF7apoptosisnucleus pulposus

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