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7432403 
Journal Article 
Antiviral potential of plant polysaccharide nanoparticles actuating non-specific immunity 
Stovbun, SV; Kalinina, TS; Zlenko, DV; Kiselev, AV; Litvin, AA; Bukhvostov, AA; Usachev, SV; Kuznetsov, DA; , 
2021 
Yes 
International Journal of Biological Macromolecules
ISSN: 0141-8130
EISSN: 1879-0003 
ELSEVIER 
AMSTERDAM 
743-749 
English 
33831450 
WOS:000669519300013 
The development of high-end targeted drugs and vaccines against modern pandemic infections, such as COVID-19, can take a too long time that lets the epidemic spin up and harms society. However, the countermeasures must be applied against the infection in this period until the targeted drugs became available. In this regard, the non-specific, broad-spectrum anti-viral means could be considered as a compromise allowing overcoming the period of trial. One way to enhance the ability to resist the infection is to activate the nonspecific immunity using a suitable driving-up agent, such as plant polysaccharides, particularly our drug Panavir isolated from the potato shoots. Earlier, we have shown the noticeable anti-viral and anti-bacterial activity of Panavir. Here we demonstrate the pro-inflammation activity of Panavir, which four-to-eight times intensified the ATP and MIF secretion by HL-60 cells. This effect was mediated by the active phagocytosis of the Panavir particles by the cells. We hypothesized the physiological basis of the Panavir proinflammatory activity is mediated by the indol-containing compounds (auxins) present in Panavir and acting as a plant analog of serotonin.