Pyroptosis: the pathological process that dominates granulomatous lobular mastitis

Area of Science:

• Pathology
• Molecular Biology
• Cellular Biology

Background:

• Granulomatous lobular mastitis (GLM) is an inflammatory breast condition with complex pathogenesis.
• Understanding the cellular mechanisms underlying GLM is essential for developing effective treatments.

Purpose of the Study:

• To investigate the role of pyroptosis in the pathogenesis of granulomatous lobular mastitis (GLM).
• To explore the expression of key pyroptosis markers, caspase-1 and gasdermin D (GSDMD), in GLM tissues.

Main Methods:

• Pathological examination of GLM tissue samples from 28 patients.
• Western blot and immunohistochemistry to quantify caspase-1 and GSDMD expression.
• Transmission electron microscopy (TEM) to analyze cellular ultrastructure.

Main Results:

• Significantly increased expression of activated caspase-1 and GSDMD in GLM lesions compared to controls (P < 0.05).
• TEM confirmed distinct features of pyroptosis in the affected tissues.
• Evidence suggests pyroptosis plays a role in GLM development and may inhibit apoptosis.

Conclusions:

• Pyroptosis is a key pathway implicated in the pathogenesis of granulomatous lobular mastitis.
• The findings suggest that targeting pyroptosis could be a potential therapeutic avenue for GLM treatment.