Dysregulation of MiR-21, MiR-221 and MiR-451 During Neoadjuvant Treatment of Breast Cancer: A Prospective Study
2024

MicroRNA Changes During Breast Cancer Treatment

Sample size: 60 publication 10 minutes Evidence: moderate

Author Information

Author(s): Patury Carine Bispo, Santos Brenda Luanny Maia, Matos Anna Lucia Carvalho, Slabi José, Gastalho Luciene Cristina Campos, Kaneto Carla Martins

Primary Institution: Universidade Estadual de Santa Cruz

Hypothesis

The study aims to evaluate the expression of specific microRNAs in breast cancer patients undergoing neoadjuvant treatment.

Conclusion

The study found that there is a deregulation of miR-21, miR-221, and miR-451 during neoadjuvant treatment in breast cancer patients.

Supporting Evidence

  • 96% of the study group had non-special subtype breast cancer.
  • 88.9% of participants had locally advanced tumors.
  • 40.7% were luminal tumors, 33.3% were HER-2-positive, and 26% were triple negative.

Takeaway

This study looked at how certain tiny molecules in the blood change when women with breast cancer get treatment. It found that some of these molecules behave differently during treatment.

Methodology

The study was prospective and observational, analyzing blood samples for microRNA expression using qRT-PCR and comparing breast cancer patients with a control group.

Potential Biases

Potential bias due to the non-standardization of microRNA evaluation methods.

Limitations

The study had a small sample size and did not pair comorbidities between groups.

Participant Demographics

All participants were female, aged between 34 and 73 years, with a mean age of 50.11 years.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/biom14121580

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