Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/ijms23168913
Keywords
exosomes; alpha-mangostin; cisplatin; ovarian cancer; metastasis; tumor microenvironment
Funding
- Medical University of Silesia in Katowice, Poland [PCN-1-174/N/0/I, PCN-1-087/N/1/I, KNW-2-B33/D/9/N]
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The diversity and role of exosomes in the microenvironment make them an important focus in cancer development. This study evaluated the effect of exosomes derived from ovarian cancer cells on gene expression in fibroblasts, and attempted to assess the indirect impact of cisplatin and/or alpha-mangostin on metastasis. The results showed that these chemotherapeutic agents not only directly affected tumor cells, but also contributed to delaying metastasis development indirectly through exosomes.
The diversity of exosomes and their role in the microenvironment make them an important point of interest in the development of cancer. In our study, we evaluated the effect of exosomes derived from ovarian cancer cells on gene expression in fibroblasts, including genes involved in metastasis. We also attempted to evaluate the indirect effect of cisplatin and/or alpha-mangostin on metastasis. In this aspect, we verified the changes induced by the drugs we tested on vesicular transfer associated with the release of exosomes by cells. We isolated exosomes from ovarian cancer cells treated and untreated with drugs, and then normal human fibroblasts were treated with the isolated exosomes. Changes in the expression of genes involved in the metastasis process were then examined. In our study, we observed altered expression of genes involved in various steps of the metastasis process (including genes related to cell adhesion, genes related to the interaction with the extracellular matrix, the cell cycle, cell growth and proliferation, and apoptosis). We have shown that alpha-mangostin and/or cisplatin, as chemotherapeutic agents, not only directly affect tumor cells but may also indirectly (via exosomes) contribute to delaying metastasis development.
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