Reduced CCR2 Can Improve the Prognosis of Sarcoma by Remodeling the Tumor Microenvironment

Baixing Wei1, Hao Feng1, Han Wu1

  • 1Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, People's Republic of China.

Abstract

Insights

Researchers identified CCR2 as a key regulator of the tumor microenvironment (TME) in sarcoma (SARC). Targeting CCR2 may offer new therapeutic strategies for SARC by remodeling the TME and enhancing immunotherapy.

Area of Science:

  • Oncology
  • Immunology
  • Bioinformatics

Background:

  • The tumor microenvironment (TME) is crucial in sarcoma (SARC) development.
  • Effective regulation of the SARC TME remains a challenge.

Purpose of the Study:

  • Identify core molecules regulating both immune and stromal cells within the TME.
  • Determine potential therapeutic targets for SARC.

Main Methods:

  • Utilized ESTIMATE algorithm to assess immune and stromal components in 265 SARC samples.
  • Employed protein-protein interaction (PPI) network, COX, survival, and GSEA analyses to identify prognostic genes.
  • Applied CIBERSORT and xcell algorithms to quantify immune and stromal cell infiltration.

Main Results:

  • Increased immune and stromal components in the TME correlated with poor SARC prognosis.
  • Identified CCR2 as a core prognostic gene regulating both immune and stromal cells.
  • CCR2 was found to regulate 12 immune cell types and 7 stromal cell types, including key cells like CD4+ T cells, CD8+ T cells, MSCs, and fibroblasts.

Conclusions:

  • CCR2 plays a significant prognostic role in the SARC TME.
  • CCR2 is a potential therapeutic target for TME remodeling and immunotherapy in SARC.

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...
6.8K
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.7K
Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.5K
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...
3.9K