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TYRO3 and EPHA2 Expression Are Dysregulated in Breast Cancer

Ananda Cristina Fernandes de Aguiar1,2, Nancy Cristina Ferraz de Lucena Ferreira2,3, Maria Amelia Carlos Souto Maior Borba2

  • 1Keizo Asami Institute (iLIKA), Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil.

Cell Biochemistry and Function
|September 27, 2024
PubMed

Insights

Receptor tyrosine kinases (RTKs) like TAM and EPHA2 are key in breast cancer. Their expression correlates with tumor characteristics and patient lifestyle factors, offering new insights into breast tumor biology.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Receptor tyrosine kinases (RTKs) regulate crucial cellular functions like growth and motility.
  • Aberrant RTK signaling is implicated in cancer development and treatment resistance.
  • While RTKs are studied in various cancers, their role in breast tumors remains less understood.

Purpose of the Study:

  • To investigate the expression of specific RTKs, including TAM (TYRO3, AXL, MERTK), RON, EPHA2, and MET, in breast cancer subtypes.
  • To analyze the correlation between RTK gene expression and clinical data, including patient demographics and lifestyle factors.

Main Methods:

  • Quantitative PCR (qPCR) was used to assess gene expression levels.
  • Analysis included 51 luminal breast cancer and 8 triple-negative breast cancer (TNBC) tissue samples.
  • Statistical methods were employed to correlate gene expression with clinical information.

Main Results:

  • TYRO3 expression showed associations with tumor subtype, stage, patient age, smoking, and obesity.
  • MET gene expression correlated with EPHA2 and TAM gene expression.
  • EPHA2 expression was linked to patient age and smoking habits.

Conclusions:

  • The expression of TAM and EPHA2 genes appears significant in breast cancer pathogenesis.
  • Patient lifestyle factors, such as age and smoking, influence the expression of these RTKs.
  • These findings highlight potential therapeutic targets and the impact of lifestyle on breast tumor biology.
Keywords:
TNBC tumorsgene expressionluminal patientsreceptors tyrosine kinaseresistancetarget therapy

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