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Published on: November 28, 2019
The Immunological Roles of Periostin/Tumor-Associated Macrophage Axis in Development of Dermatofibrosarcoma
Taku Fujimura1, Aya Kakizaki2, Yota Sato2
1Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan tfujimura1@mac.com.
Background/Aim:
Dermatofibrosarcoma protuberance (DFSP) is a fibrohistiocytic tumor of intermediate malignancy characterized by slow infiltrative growth and a high tendency to recur locally. Periostin is involved in modulating cell function and inducing the production of proinflammatory cytokines, chemokines, and matrix metalloproteinases (MMPs) from tumor-associated macrophages (TAMs) to promote fibrosis and tumor growth. This study aimed to examine the cancer stroma of DFSP, focusing on TAMs-related proteins and MMPs.
Patients And Methods:
Using immunohistochemical staining and DNA microarray database, we evaluated periostin, CD163, CD206, MMP1 and MMP12 in 10 cases of DFSP and dermatofibroma.
Results:
Dense deposits of periostin as well as a substantial number of CD163+ TAMs were detected at the peripheral areas of DFSP. Moreover, MMP1 and MMP12, that were selected by using a DNA microarray database of monocyte-derived macrophages, were observed in the TAMs-detected area.
Conclusion:
Increased levels of MMP1 and MMP12 on TAMs in the peripheral areas of DFSP might contribute to local invasion.
Insights
Dermatofibrosarcoma protuberance (DFSP) involves periostin and tumor-associated macrophages (TAMs). Increased MMP1 and MMP12 in TAMs at DFSP
Area of Science:
- Oncology
- Dermatopathology
- Cancer Biology
Background:
- Dermatofibrosarcoma protuberance (DFSP) is a rare, slow-growing skin cancer with high recurrence rates.
- Periostin, a protein involved in fibrosis and tumor growth, and tumor-associated macrophages (TAMs) are implicated in cancer stroma.
- Understanding the roles of TAMs and matrix metalloproteinases (MMPs) in DFSP is crucial for targeted therapies.
Purpose of the Study:
- To investigate the expression of periostin, TAM markers (CD163, CD206), and MMPs (MMP1, MMP12) in the tumor microenvironment of DFSP.
- To correlate the presence of these factors with the invasive potential of DFSP.
Main Methods:
- Immunohistochemical staining was performed on 10 DFSP and dermatofibroma tissue samples.
- DNA microarray database analysis was utilized to identify relevant MMPs in macrophages.
Main Results:
- DFSP tissues showed dense periostin deposits and numerous CD163+ TAMs, particularly at the tumor periphery.
- MMP1 and MMP12 were detected in TAM-rich areas, correlating with findings from macrophage gene expression analysis.
Conclusions:
- Elevated levels of MMP1 and MMP12 within TAMs at the periphery of DFSP tumors may facilitate local invasion.
- Targeting periostin, TAMs, and specific MMPs could offer novel therapeutic strategies for managing DFSP recurrence.
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