Mechanistic role of miR-375 in regulating PDPK1 to promote progression of small bowel neuroendocrine tumors: a silico analysis

  • 0Department of Oncology, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, 530022, Guangxi, China.

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Summary

This summary is machine-generated.

This study identified five microRNAs (miRNAs) as potential diagnostic markers for small bowel neuroendocrine tumors (SBNETs). MiR-375 regulating PDPK1 shows promise as a therapeutic target for SBNETs.

Area Of Science

  • Oncology
  • Molecular Biology
  • Genomics

Background

  • Small bowel neuroendocrine tumors (SBNETs) incidence is rising, necessitating novel therapeutic strategies to improve patient survival.
  • Current treatment options for SBNETs are limited, highlighting the urgent need for new diagnostic and therapeutic approaches.

Purpose Of The Study

  • To identify potential diagnostic and therapeutic candidate markers for small bowel neuroendocrine tumors (SBNETs).
  • To explore the role of microRNAs (miRNAs) and messenger RNAs (mRNAs) in SBNET development and progression.

Main Methods

  • Analysis of miRNA and mRNA expression profiles from public datasets (GSE70534, GSE103317, GSE65286) comparing SBNETs with control samples.
  • Identification of differentially expressed miRNAs (DEmiRs) and mRNAs (DEmRs), followed by enrichment and coexpression analyses.
  • Application of the XGBoost algorithm to identify feature miRNAs and construction of a regulatory network, including drug targeting and immune microenvironment evaluation.

Main Results

  • Fifty-seven common DEmiRs were identified, with five feature miRNAs (hsa-miR-375, hsa-miR-107, hsa-miR-1180, hsa-miR-330-3p, hsa-miR-328) highlighted.
  • PDPK1 was identified as a key target gene, showing the strongest correlation with the therapeutic agent 177Lu-DOTATATE, regulated by miR-375.
  • PDPK1 expression correlated with immune cell populations (eosinophils, cytotoxic cells) and immune checkpoints within the SBNET microenvironment.

Conclusions

  • Five identified feature miRNAs demonstrate potential as diagnostic markers for SBNETs.
  • The miR-375/PDPK1 axis presents a promising therapeutic candidate marker for SBNET treatment.
  • Further investigation into these markers could lead to improved diagnostic accuracy and targeted therapies for SBNET patients.