Metalloproteinases 1 and 3 as Potential Biomarkers in Breast Cancer Development.

Area of Science:

• Oncology
• Biochemistry

Background:

• Breast cancer remains a significant global health challenge, with early diagnosis crucial for reducing mortality.
• Human matrix metalloproteinases (MMPs) are enzymes involved in extracellular matrix degradation and play a role in breast cancer progression.

Purpose of the Study:

• To investigate the immunohistochemical expression levels of MMP-1, MMP-2, MMP-3, and MMP-9 in breast cancer patients.
• To determine if MMP expression correlates with breast cancer development and clinicopathological factors.

Main Methods:

• Retrospective cohort study involving 154 women with breast cancer and 42 controls.
• Immunohistochemical analysis of MMP-1, MMP-2, MMP-3, and MMP-9 expression in tissue samples using tissue microarrays (TMA).
• Assessment of staining percentage (≤50% vs. >50%) and intensity (weak, moderate, intense).

Main Results:

• Statistically significant associations were found between MMP-1 intensity (p=0.043) and MMP-3 percentage (p=0.018) and intensity (p=0.025) with breast cancer presence.
• No significant correlation was observed between MMP expression and clinicopathological factors.

Conclusions:

• MMP-1 and MMP-3 expression in tumor tissue may be linked to breast cancer development.
• MMP-1 and MMP-3 show potential as diagnostic biomarkers for breast cancer.