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.

Anticancer Research
|May 29, 2017
PubMed
Abstract

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.

Related Concept Videos

The Tumor Microenvironment02:17

The Tumor Microenvironment

Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
8.0K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
4.9K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
5.9K