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Comparative Analysis of Adipose Tissue Depots in Immediate versus Delayed Breast Reconstruction
Carlos Pinho1, Beatriz Soares2, Beatriz Costa2
1Departamento de Cirurgia Plástica e Reconstrutiva, Instituto Português de Oncologia do Porto FG, Porto, Portugal.
Archives of Medical Research
|December 24, 2025
Summary
Selecting the right adipose tissue (fat) for breast reconstruction is crucial. Omental fat is suitable for immediate reconstruction, but delayed reconstruction may require different fat sources due to altered properties.
Area of Science:
- Adipose tissue biology
- Tissue engineering
- Plastic and reconstructive surgery
Background:
- Mastectomy followed by breast reconstruction is standard for breast cancer.
- Autologous tissue selection requires understanding fat depot characteristics.
Purpose of the Study:
- To analyze molecular and structural differences in adipose tissue depots from various body locations.
- To compare these characteristics between immediate (IBR) and delayed (DBR) breast reconstruction.
Main Methods:
- Collected white adipose tissue (WAT) from five locations in 24 patients.
- Analyzed adipocyte area, gene expression (inflammation, fibrosis, browning, ADSCs), and protein expression.
- Grouped samples based on IBR or DBR.
Main Results:
- Omental WAT in DBR patients had larger adipocytes and different gene/protein expression compared to IBR.
- Breast fat also showed variations between IBR and DBR groups.
- In IBR, breast fat differed from subcutaneous WAT in specific molecular markers.
Conclusions:
- Omental fat in IBR shares properties with subcutaneous WAT, making it suitable for rapid reconstruction.
- Omental fat in DBR shows a pro-fibrotic phenotype, suggesting it's not ideal for delayed reconstruction.
- Careful selection of WAT is vital to minimize adverse outcomes and cancer recurrence.
