O the restoration of UVB-irradiated dermal fibroblasts and are hugely promising as an anti-photoageing agent.Background: A growing quantity of studies suggest that stem cells (SCs) exert their therapeutic effect primarily by a paracrine regulation via extracellular vesicles (EVs) by delivering growth things, proteins, nucleic acids and lipids. SC EVs have demonstrated the ability to regenerate tissues and neovascularization in models of myocardial infarction, muscle and kidney injury. Hence it’s feasible that SC EVs could substitute SC to treat many diseases, circumventing problems related with cell-based strategies, for instance stress-induced necrosis or aberrant differentiation. Amniotic fluid has been recently recognized as a vital however underutilized source of multipotent stem like cells, showing higher plasticity and capacity to differentiate into the three varieties of germ layer cells. We’ve got demonstrated that amniotic fluid cells (AFC) secrete a population of tiny (nanosized) EVs, which enclose the catalytic subunit of telomerase, the hTERT protein, suggesting a achievable new activity for this protein. In this contribution, we are going to report on our last experiments and benefits in exploration of the functional properties of AFC EVs to improve cell viability and development rate in different cell lines. Methods: EVs from AFC culture medium had been purified making use of sequential centrifugation actions. A biochemical (Western blot analysis) and biophysical (atomic force microscopy, AFM) characterizations had been performed. EVs had been then graded for purity and quantified by CONAN (COlorimetric NANoplasmonic) assay. Ultimately EV-based wound/healing and vitality assays had been performed on distinctive cell lines. Benefits: The CONAN assay permitted us to assess purity and determine the molar concentration from the EV formulations although AFM imaging confirmed the sample to become composed of nanosized EV populations (5000 nm). Incubation with EVs experiments gave promising benefits in terms of the possibility to make use of AFC EVs as additives to improve cell culture viability. Summary/Conclusion: The contribution will present and go over original results on EV mediated mechanisms by which AFC cells exert a good impact towards slow growing cell cultures, with an interest on fundamental understanding of EV paracrine signalling and prospective application of EVs as therapeutic agents in regenerative medicine. FP Inhibitor Storage & Stability Funding: This function was supported by University of Brescia analysis fund (ex 60) to A.R., P.B. and G.P.PS01.Extracellular vesicles secreted by dendritic cells can recruit mesenchymal stem/stromal cells: in vitro and ex vivo proof Andreia M. Silva1; JosH. Teixeira1; Ana R. Ferreira2; Maria I. Almeida2; Carla Cunha2; Daniela P. Vasconcelos1; Nuno Neves3; M io A. Barbosa1; Susana G. Santos2 i3S Instituto de Investiga o e Inova o em Sa e, Universidade do Porto, Portugal; INEB Instituto de Engenharia Biom ica, Universidade do Porto, Portugal; ICBAS Instituto de Ci cias Biom icas Abel Salazar, Universidade do Porto, Portugal., Porto, Portugal; 2i3S Instituto de Investiga o e Inova o em Sa e, Universidade do Porto, Portugal; INEB Instituto de Engenharia Biom ica, Universidade do Porto, Portugal., Porto, Portugal; 3i3S Instituto de Investiga o e Inova o em Sa e, Universidade do Porto, Portugal; FMUP Faculdade de Medicina da Universidade do Porto, IL-6 Inhibitor Compound Departamento de Cirurgia, Servi de Ortopedia, Porto, Portugal., Porto, PortugalBackground: Mesenchymal stem/stromal cells (MSC) are becoming.
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