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Neural Transdifferentiation: MAPTau Gene Expression in Breast Cancer Cells.

E Lara-Padilla1, A Miliar-Garcia, M Gomez-Lopez

  • 1Laboratory of Molecular Oncology and Oxidative Stress, Mexico City, Mexico,

Asian Pacific Journal of Cancer Prevention : APJCP
|May 26, 2016
PubMed
Summary
This summary is machine-generated.

Microtubule-associated protein-tau (MAP-Tau) variants are expressed in breast cancer (BCa) cell lines. The T47D cell line showed significant MAP-Tau variant expression and neuronal-glial morphology, suggesting a role in BCa transdifferentiation.

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Area of Science:

  • Oncology
  • Cell Biology
  • Molecular Biology

Background:

  • Aberrant differentiation and neuronal protein expression are observed in tumor cells, including breast cancer (BCa).
  • Neuronal proteins are implicated in carcinogenesis, but their regulatory mechanisms in BCa remain unclear.
  • Microtubule-associated protein-tau (MAP-Tau) has been identified in BCa, but its specific variants and role in neuronal-glial morphology are not well understood.

Purpose of the Study:

  • To investigate the mRNA expression of MAP-Tau transcript variants 2, 4, and 6 in breast cancer cell lines.
  • To correlate MAP-Tau variant expression with the observed neuronal-glial morphology in BCa cells.

Main Methods:

  • Utilized phase-contrast microscopy to assess neural morphology in cultured cell lines (MCF-10A, MDA-MB-231, SKBR3, T47D).
  • Quantified mRNA expression of MAP-Tau transcript variants 2, 4, and 6 using real-time PCR.

Main Results:

  • The T47D cell line exhibited a higher prevalence of neural/glial cell morphology compared to MDA-MB-231 and SKBR3 lines.
  • Significantly greater mRNA expression of MAP-Tau variant 2, and to a lesser extent variants 4 and 6, was detected in T47D cells relative to other cell lines.
  • MAP-Tau expression levels correlated with the observed neuronal-glial characteristics in the studied BCa cell lines.

Conclusions:

  • MAP-Tau regulation may influence the cytoskeleton, cell morphology, and motility in breast cancer.
  • These findings provide further insight into the phenomenon of neuronal transdifferentiation in breast cancer.
  • Understanding MAP-Tau variant expression could reveal novel therapeutic targets for breast cancer treatment.