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Regulatory and Interacting Partners of PDLIM7 in Thyroid Cancer

Kristiana Rood1,2,3, Celina Romi Yamauchi1,2,3, Umang Sharma4

  • 1Division of Biochemistry, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA.

Current Oncology (Toronto, Ont.)
|December 22, 2023
PubMed

Insights

Enigma protein (PDLIM7) is overexpressed in thyroid cancer and interacts with key pathways. PDLIM7 shows potential as a novel biomarker for papillary thyroid carcinoma detection.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Enigma protein (PDLIM7) is overexpressed in thyroid cancer, suggesting a role in disease progression.
  • Enigma interacts with PI3K/AKT, MDM2, and BMP-1 pathways and is regulated by microRNAs, like the Let-7 family.
  • Limited research exists on Enigma's interactions and regulation in thyroid cancer tissues.

Purpose of the Study:

  • To establish Enigma (PDLIM7) as a potential biomarker for thyroid cancer.
  • To investigate Enigma's interacting partners and signaling pathways in thyroid cancer.
  • To explore the microRNA regulation of Enigma in thyroid cancer progression.

Main Methods:

  • Western blotting and densitometric analysis for protein expression.
  • Immunoprecipitation (IP) and reverse IP for protein-protein interactions.
  • Real-time qPCR and Pearson's correlation for gene expression analysis.

Main Results:

  • Enigma protein and AKT, VDR, BMP-1, MDM2 were differentially upregulated in papillary thyroid carcinomas (PTCs) compared to benign tissues.
  • Strong interactions between Enigma and PI3K/AKT, MDM2, and a weaker interaction with BMP-1 were observed.
  • A significant, albeit weak, inverse correlation was found between PDLIM7 and Let-7g gene expression in PTCs.

Conclusions:

  • The PDLIM7-qPCR assay shows potential utility as a biomarker for thyroid cancer.
  • Enigma's interactions with signaling pathways offer insights into thyroid cancer development.
  • This study enhances understanding of Enigma's molecular mechanisms in thyroid cancer, supporting its biomarker potential.
Keywords:
BMP-1EnigmaMDM2PI3K/AKTlet-7gthyroid cancer

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