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Optical excitation of organic semiconductors as a highly selective strategy to induce vascular regeneration and tissue repair
We describe how photoexcitation of the conducting polymer poly(3-hexylthiophene-2,5-diyl), also known as P3HT, stimulates extracellular Ca2+ entry through Transient Receptor Potential Vanilloid 1 (TRPV1) channels upon the production of hydrogen peroxide (H2O2) in the cleft between the nanomaterial and the cell membrane. H2O2-induced TRPV1-dependent Ca2+ entry stimulates ECFC proliferation and tube formation, thereby providing the proof-of-concept that photoexcitation of organic semiconductors may offer a reliable strategy to stimulate ECFCs-dependent neovascularization in CVDs.PMID:35589009 | DOI:10.1016/j.vph.2022.106998
Source: Vascular Pharmacology - May 19, 2022 Category: Drugs & Pharmacology Authors: Francesco Moccia Sharon Negri Pawan Faris Carlotta Ronchi Francesco Lodola Source Type: research

Effective treatment of intractable diseases using nanoparticles to interfere with vascular supply and angiogenic process
AbstractAngiogenesis is a vital biological process involving blood vessels forming from pre-existing vascular systems. This process contributes to various physiological activities, including embryonic development, hair growth, ovulation, menstruation, and the repair and regeneration of damaged tissue. On the other hand, it is essential in treating a wide range of pathological diseases, such as cardiovascular and ischemic diseases, rheumatoid arthritis, malignancies, ophthalmic and retinal diseases, and other chronic conditions. These diseases and disorders are frequently treated by regulating angiogenesis by utilizing a va...
Source: European Journal of Medical Research - November 4, 2022 Category: Research Source Type: research