DOI: https://doi.org/10.29363/nanoge.liv-act.2022.002
Publication date: 8th September 2022
Tissue regeneration is one of the most fascinating biological capabilities of multicellular organisms. During animal evolution this capability has been progressively lost while primitive organisms such as cnidarian are able to regenerate amputated body parts starting from tiny piece of tissues. After injury, various intracellular pathways and intercellular communication must be activated to establish a new tissue integrity and homeostasis. Alongside biochemical and genetic networks, in the last decade bioelectrical signaling has gained an important role as a biophysical master regulator, controlling cell behaviours and driving proliferation, differentiation, migration processes. Here we show the possibility to use of organic semiconducting nanoparticles to modulate the regeneration process of the invertebrate polyps Hydra. We compare the diverse effects of two different polymer photovoltaic materials (P3HT and PCPDTBT). By integrating animal, cellular, molecular and biochemical approaches we suggest a mechanism underlying the cell responses to the nanoparticle photostimulation which could be exploited to augment the tissue regenerative capacity or to inhibit the proliferation potential, opening the path to novel approaches for the optical modulation of various biologic functions.
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