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Rimonabant and Cannabidiol Rewrite the Interactions between Breast Cancer Cells and Tumor Microenvironment.

Maria Chiara Proto1, Donatella Fiore1, Maurizio Bifulco2

  • 1Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy.

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|September 9, 2023
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Summary

Rimonabant and Cannabidiol show anti-metastatic potential by reprogramming the breast tumor microenvironment (TME). These compounds alter factors crucial for tumor growth, angiogenesis, and immune response, offering a new approach for breast cancer management.

Keywords:
breast cancercannabidiolmetastatic breast cancerrimonabanttumor microenvironment

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Area of Science:

  • Oncology
  • Cancer Biology
  • Pharmacology

Background:

  • Breast cancer metastasis to distant sites is a primary cause of patient mortality.
  • The tumor microenvironment (TME) plays a critical role in breast cancer progression and metastasis.
  • Pathologic assessment of the TME is increasingly vital for diagnosis and therapy.

Purpose of the Study:

  • To investigate the effects of Rimonabant and Cannabidiol on reprogramming the breast tumor microenvironment (TME).
  • To evaluate the anti-metastatic potential of these compounds in a model of breast-to-lung metastasis.

Main Methods:

  • Investigated the impact of Rimonabant and Cannabidiol on growth factor secretion from breast cancer cells and lung fibroblasts.
  • Utilized membrane array analyses to assess changes in secreted factors.
  • Mimicked tumor-stroma interactions relevant to breast-to-lung metastasis.

Main Results:

  • Demonstrated the anti-metastatic potential of Rimonabant and Cannabidiol.
  • Showed that these compounds alter the release of factors involved in tumor proliferation, angiogenesis, and immune reprogramming.
  • Highlighted the compounds' ability to modulate autocrine and paracrine signaling pathways within the TME.

Conclusions:

  • Rimonabant and Cannabidiol exhibit significant antitumor potential.
  • These compounds can reprogram the breast TME, suggesting a novel therapeutic strategy.
  • Further research into Rimonabant and Cannabidiol for TME management in breast cancer is warranted.