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907185.pdf (2.31 MB)

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2019-08-01

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cc-by (c) Tubita, V. et al., 2019
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/224713

Effect of immunosuppression in miRNAs from extracellular vesicles of colorectal cancer and their influence on the pre-metastatic niche

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https://doi.org/10.1038/s41598-019-47581-y

Resum

Colorectal cancer (CRC) occurs with more aggressiveness in kidney transplant recipients compared to the general population. Immunosuppressive therapy plays a crucial role in the development of post-transplant malignancy. Concretely, cyclosporine A (CsA) has intrinsic pro-oncologic properties, while several studies report a regression of cancer after the introduction of rapamycin (RAPA). However, their effect on the extracellular vesicle (EV) content from CRC cell lines and their relevance in the pre-metastatic niche have not yet been studied. Here, we investigated the effect of RAPA and CsA in EV-miRNAs from metastatic and non-metastatic CRC cell lines and the role of relevant miRNAs transferred into a pre-metastatic niche model. EV-miRNA profiles showed a significant upregulation of miR-6127, miR-6746-5p, and miR-6787-5p under RAPA treatment compared to CsA and untreated conditions in metastatic cell lines that were not observed in non-metastatic cells. From gene expression analysis of transfected lung fibroblasts, we identified 22 shared downregulated genes mostly represented by the histone family involved in chromatin organization, DNA packaging, and cell cycle. These results suggest that EV-miR-6127, miR-6746-5p and miR-6787-5p could be a potential epigenetic mechanism induced by RAPA therapy in the regulation of the pre-metastatic niche of post-transplant colorectal cancer.

Matèries

Immunosupressió, Tumors, Càncer colorectal

Matèries (anglès)

Immunosuppression, Tumors, Colorectal cancer

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Articles publicats en revistes (Medicina)
Articles publicats en revistes (IDIBAPS: Institut d'investigacions Biomèdiques August Pi i Sunyer)

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RAMÍREZ BAJO, María josé, REVUELTA, Ignacio, TUBITA, Valeria, SEGUÍ BARBER, Joan, LOZANO, Juan josé, BAÑÓN MANEUS, Elisenda, ROVIRA, Jordi, CUCCHIARI, David, MOYA RULL, Daniel, OPPENHEIMER SALINAS, Federico, DEL PORTILLO, Hernando a., CAMPISTOL PLANA, Josep m., DIEKMANN, Fritz. Effect of immunosuppression in miRNAs from extracellular vesicles of colorectal cancer and their influence on the pre-metastatic niche. _Scientific Reports_. 2019. Vol. 9, núm. 1. [consulta: 25 de desembre de 2025]. ISSN: 2045-2322. [Disponible a: https://hdl.handle.net/2445/224713]

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