FOXO3a-dependent Parkin regulates the development of gastric cancer by targeting ATP-binding cassette transporter E1

Dan Ding1,2, Xiang Ao1,2, Mengyang Li1

  • 1School of Basic Medical Sciences, College of Medicine, Qingdao University, Qingdao, China.

Insights

This study reveals a new pathway involving FOXO3a, Parkin, and ABCE1 in gastric cancer (GC). This FOXO3a-Parkin-ABCE1 axis impacts GC cell growth, movement, and cell death, offering a potential new therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Gastric cancer (GC) is a leading cause of cancer death in China.
  • Parkin functions as a tumor suppressor, but its mechanism in GC is not fully understood.
  • Forkhead box O3a (FOXO3a) is a key regulator of cancer cell behavior.

Purpose of the Study:

  • To elucidate the mechanism of Parkin in gastric cancer.
  • To identify the regulatory pathway involving FOXO3a, Parkin, and ABCE1 in GC.
  • To explore potential therapeutic targets for GC.

Main Methods:

  • Observing Parkin expression in GC cells and patient tissues.
  • Investigating the effects of doxorubicin (DOX) on Parkin expression and GC cells.
  • Analyzing the regulatory relationship between FOXO3a, Parkin, and ABCE1 at the transcriptional level.

Main Results:

  • Parkin expression was low in GC cells and tissues; Parkin inhibited GC cell proliferation and migration.
  • Doxorubicin (DOX) increased Parkin expression and enhanced its anti-cancer effects.
  • FOXO3a suppressed GC cell proliferation and migration while promoting apoptosis by regulating Parkin transcription.
  • Parkin inhibited proliferation and migration and promoted apoptosis by downregulating ABCE1 expression.

Conclusions:

  • A novel regulatory axis, FOXO3a-Parkin-ABCE1, was identified in gastric cancer.
  • This axis significantly modulates GC cell proliferation, migration, and apoptosis.
  • The FOXO3a-Parkin-ABCE1 pathway represents a potential therapeutic target for gastric cancer treatment.

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