Effect of PRKD3 on cell cycle in gastric cancer progression and downstream regulatory networks

Shuaiyang Wang1,2, Bei Xie3, Haohua Deng1,2

  • 1Department of Clinical Laboratory Center, Lanzhou University Second Hospital, Lanzhou, 730000, Gansu, China.

Insights

Protein kinase D3 (PRKD3) is overexpressed in gastric cancer (GC), driving tumor progression and adverse patient outcomes. Inhibiting PRKD3 reduces GC malignancy and offers a potential therapeutic target for this disease.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Protein kinase D3 (PRKD3) is implicated in tumor development, but its specific role in gastric cancer (GC) and cell cycle regulation remains unclear.
  • Understanding PRKD3's function is crucial for developing targeted GC therapies.

Purpose of the Study:

  • To investigate the role of PRKD3 in gastric cancer progression and its impact on the cell cycle.
  • To identify potential therapeutic strategies targeting PRKD3 in GC.

Main Methods:

  • Bioinformatic analysis of PRKD3 expression in GC tissues.
  • In vitro experiments using GC cell lines to assess the effects of PRKD3 knockdown on malignancy.
  • Proteomic and Western blot analyses to elucidate PRKD3's molecular mechanisms.

Main Results:

  • PRKD3 was significantly overexpressed in GC tissues, correlating with poor patient prognosis.
  • PRKD3 knockdown suppressed GC cell proliferation, migration, and invasion, inducing G2/M phase arrest.
  • Proteomic analysis revealed PRKD3 affects cell cycle proteins (CDK1, CyclinB1, CHK1, PLK1) and signaling pathways (FoxO, p53).

Conclusions:

  • PRKD3 overexpression is linked to aggressive GC behaviors and poor outcomes.
  • Targeting PRKD3 presents a promising therapeutic avenue for gastric cancer treatment.

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