Etter Somersalo1, Elisa L aro Ib ez2, Laura Aksela3, Cristian Capasso4, Matti Jalasvuori5, Vincenzo Cerullo6, Paolo Ciana7, Lukasz Kuryk8 and Marjo Yliperttula1 Division of Pharmaceutical Biosciences, Centre for Drug Investigation, Faculty of Pharmacy, University of Helsinki, Finland; 2University of Helsinki, Finland; 3 Orion corporation; 4Laboratory of Immunovirotherapy, Division of Pharmaceutical Biosciences and Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, Finland; 5Biological and Environmental Science, University of Jyv kyl Finland; 6Laboratory of ImmunoVirothetherapy, Centre for Drug Study, Faculty of Pharmacy, University of Helsinki, Finland; 7Division of Oncology and Onco-Hematology, University of Milan (Italy); 8Targovax ASA; 9 Division of Pharmaceutical Biosciences and Centre for Drug Research, Faculty of Pharmacy, University of Helsinki, FinlandIntroduction: Phosphorylation and dephosphorylation are essential processes connected to post-translational modifications which influence cell signaling pathways, and when deregulated are related to illnesses. Low Molecular Weight Protein Tyrosine Phosphatase (LMWPTP) is upregulated in numerous cancers, which includes colorectal cancer (CRC), and it has been correlated with aggressiveness, chemoresistance and poor prognostic. Extracellular vesicles (EVs) have gained focus in cancer research on account of their part in cell-to-cell communication and tumorigenesis. This study aimed to examine irrespective of whether the LMWPTP could take portion in EVs biogenesis and/or secretion in CRC cell lines. Solutions: HCT116 and HT29cells were bought from BCRJ (Brazil) and then routinely grown in McCoy5A media. Western Blot (WB) was performed to analyze LMWPTP and EVs biogenesis proteins expression. For EVs isolation, cells have been cultured in filtered-serum-free McCoy5A media for 12 hours. Just after, the EVs had been isolated by ultracentrifugation (UC) and Total Exosome Isolation Reagent kit (TEI, Invitrogen). Nanoparticle tracking analysis (NTA) was performed to attain concentration and size. Benefits: WB evaluation showed that LMWPTP is overexpressed in HT29 when compared with HCT116 as well as EVs biogenesis related proteins LAMP1, LAMP-2, HRS, STAM-2, Flotillin-1, Rab5, Rab7, Rab11 and Rab35 have been very expressed in HT29 vs HCT116; when TSG101 and ALIX have been reduced expressed in HT29. EVs isolated by UC and TEI solutions showed that the culture media from HT29 displayed higher concentration of EVs than HCT116. Summary/Conclusion: This study show, for the very first time, that the LMWPTP may possibly be associated to EVs biogenesis or trafficking mechanisms, as soon as its greater expression is connected to higher volume of EVs from HT29 cells. In addition, it was observed higher expression of proteins involved in biogenesis and trafficking in HT29 compared with HCT116. These findings indicate an application possible of this enzyme in the EVs investigation. Funding: Grant 2016/02770-6, S Paulo Analysis Foundation (FAPESP).LBP.Characterizing the extracellular vesicle production of stromal fibroblasts in colorectal cancer DAPK drug Zsuzsanna Szvicsek1, P2Y6 Receptor medchemexpress Oszvald1, Andrea Kelemen1, Attila Zar d2, L zlHars yi2, Edit Buz three and Zoltan WienerIntroduction: EVs are known to act as endogenous carriers of a wide selection of proteins and nucleic acids, subsequently delivered to recipient cells. Therefore, EVs hold terrific prospective as becoming exploited as delivery cars of therapeutic agents. In the current study, we’ve got investigated the EV-mediated delivery of oncolytic aden.