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The Extracellular Matrix01:29

The Extracellular Matrix

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In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
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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...
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  9. Predictive And Prognostic Markers
  11. Spatial Transcriptomics Reveals Strong Association Between Sfrp4 And Extracellular Matrix Remodeling In Prostate Cancer.
  1. Home
  3. Research Domains
  5. Biomedical And Clinical Sciences
  7. Oncology And Carcinogenesis
  9. Predictive And Prognostic Markers
  11. Spatial Transcriptomics Reveals Strong Association Between Sfrp4 And Extracellular Matrix Remodeling In Prostate Cancer.

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Spatial transcriptomics reveals strong association between SFRP4 and extracellular matrix remodeling in prostate cancer.

Maria K Andersen1,2, Sebastian Krossa3,4, Elise Midtbust3,5

  • 1Department of Circulation and Medical Imaging, NTNU - Norwegian University of Science and Technology, Trondheim, Norway. maria.k.andersen@ntnu.no.

Communications Biology
|November 7, 2024

View abstract on PubMed

Summary
This summary is machine-generated.

Secreted frizzled-related protein 4 (SFRP4) mRNA is found in the prostate tumor stroma and linked to aggressive cancer. However, SFRP4 protein levels are surprisingly low, offering new diagnostic and treatment insights.

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Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Prostate tumor heterogeneity complicates the study of molecular markers.
  • Elevated secreted frizzled-related protein 4 (SFRP4) gene expression is a known biomarker for aggressive prostate cancer.

Purpose of the Study:

  • To investigate the spatial and multiomic characteristics of SFRP4 in prostate cancer.
  • To elucidate the relationship between SFRP4 mRNA and protein levels within the tumor microenvironment.

Main Methods:

  • Spatial transcriptomics, bulk transcriptomics, proteomics, DNA methylomics, and tissue staining were employed.
  • Analysis focused on the localization and co-expression patterns of SFRP4 mRNA.

Main Results:

  • SFRP4 mRNA was primarily detected in cancer-associated fibroblasts and smooth muscle cells within the stroma.
  • Higher SFRP4 gene expression correlated with increased prostate cancer aggressiveness.
  • SFRP4 gene expression was influenced by promoter methylation.
  • A significant discrepancy was observed between high SFRP4 mRNA levels and low SFRP4 protein levels.

    • Conclusions:

    • SFRP4 mRNA's localization and association with aggressive features provide novel insights into the prostate tumor microenvironment.
    • The discordance between SFRP4 mRNA and protein levels warrants further investigation for potential diagnostic and therapeutic applications.