Related Experiment Video

Updated: Mar 22, 2026

Isolation, Culture, and Characterization of Prostate Cancer-Associated Fibroblasts
09:43

Isolation, Culture, and Characterization of Prostate Cancer-Associated Fibroblasts

Published on: August 1, 2025

958

Prostate cancer cells specifically reorganize epithelial cell-fibroblast communication through proteoglycan and

Anastasia V Suhovskih1,2, Vladimir I Kashuba1,3, George Klein1

  • 1a MTC, Karolinska Institute , Stockholm , Sweden.

Cell Adhesion & Migration
|April 26, 2016
PubMed

Insights

Stromal fibroblasts normally inhibit prostate cell growth, but cancer cells disrupt this communication. Cancer cells alter proteoglycan and junction molecule expression, hindering fibroblast interaction and promoting autonomous growth.

Area of Science:

  • Cell Biology
  • Cancer Research
  • Prostate Cancer Microenvironment

Background:

  • Stromal fibroblasts influence tumor cell proliferation via signaling molecules and direct interactions.
  • The precise molecular mechanisms underlying fibroblast-mediated tumor suppression remain unclear.
  • Understanding intercellular communication is crucial for cancer therapy.

Purpose of the Study:

  • Investigate the role of cell-cell contact molecules in fibroblast-epithelial cell communication.
  • Examine interactions between human immortalized fibroblasts (BjTERT) and normal (PNT2) or cancer (LNCaP, PC3, DU145) prostate cells.
  • Elucidate molecular mechanisms of fibroblast-induced growth inhibition or lack thereof.

Main Methods:

  • Co-culture of BjTERT fibroblasts with PNT2 and prostate cancer cell lines.
  • Analysis of proliferation rates and transcriptional activity of cell-cell contact-related genes.
  • Immunocytochemical staining for proteoglycans (DCN, LUM, SDC1) and junction proteins.

Main Results:

  • BjTERT-PNT2 co-culture decreased proliferation and altered gene expression, with proteoglycan redistribution suggesting contact inhibition.
  • PC3 cancer cells showed no response in proteoglycan expression and failed to establish contacts with BjTERT fibroblasts.
  • PC3 cells downregulated junction-related genes in fibroblasts, favoring homotypic contacts and autonomous growth.

Conclusions:

  • Fibroblast-mediated growth inhibition of normal prostate cells is disrupted by cancer cells.
  • Cancer cells revoke the instructing role of fibroblasts by deregulating proteoglycan and junction molecule expression.
  • Disorganized fibroblast-cancer cell communication contributes to prostate cancer progression.
Keywords:
extracellular matrixfibroblastjunction moleculesmicroenvironmentprostate cancerproteoglycan

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