COVID-19 Breakthrough: Scientists Identify Possible “Achilles’ Heel” of SARS-CoV-2 Virus – SciTechDaily

COVID-19 Research: Anti-viral Technique With Double Impact

Donghyuk Shin, postdoctoral scientist and very first author of the paper, says: “Personally, I wish to underline the significance of science and research and in particular emphasize the potential produced by a culture of partnership. When I saw our joint outcomes, I was profoundly grateful for being a scientist.”

Professor Ivan Dikic, Director of the Institute of Biochemistry II at University Hospital Frankfurt and last author of the paper, discusses: “We used the compound GRL-0617, a non-covalent inhibitor of PLpro, and analyzed its mode of action extremely carefully in regards to biochemistry, structure and function. We concluded that hindering PLpro is an extremely appealing double-hit therapeutic strategy against COVID-19. The further development of PLpro-inhibiting compound classes for use in medical trials is now a key obstacle for this restorative method.”

In addition, it lets the human cell produce the viral protein PLpro (papain-like protease). If they obstructed PLpro, virus production was hindered and the inherent immune reaction of the human cells was enhanced at the exact same time.

In addition, it lets the human cell produce the viral protein PLpro (papain-like protease). If they obstructed PLpro, infection production was prevented and the inherent immune reaction of the human cells was enhanced at the exact same time.

Teacher Ivan Dikic, Director of the Institute of Biochemistry II at University Hospital Frankfurt and last author of the paper, describes: “We utilized the substance GRL-0617, a non-covalent inhibitor of PLpro, and examined its mode of action really carefully in terms of function, biochemistry and structure.

Teacher Sandra Ciesek, Director of the Institute of Medical Virology at University Hospital Frankfurt, describes that the papain-like protease is an extremely attractive anti-viral goal for her as a doctor due to the fact that its inhibition would be a “double strike” against SARS-CoV-2. She highlights the outstanding collaboration between the two institutes: “Especially when examining a brand-new clinical image, everyone benefit from interdisciplinary cooperation in addition to various experiences and perspectives.”

Another essential finding from this work is that the viral protein PLpro of SARS-CoV-2 cleaves off ISG-15 (interferon-stimulated gene 15) from cellular proteins with a higher level of activity than the SARS equivalent, which results in greater inhibition of type I interferon production. This is concordant with recent medical observations which reveal that COVID-19 displays a minimized interferon response in comparison to other breathing viruses such as influenza and SARS.

To understand in information how inhibiting PLpro stops the infection, researchers in Frankfurt, Munich, Mainz, Freiburg, and Leiden have worked carefully together and pooled their biochemical, structural, IT and virological proficiency.

Referral: “Papain-like protease manages SARS-CoV-2 viral spread and inherent immunity” by Donghyuk Shin, Rukmini Mukherjee, Diana Grewe, Denisa Bojkova, Kheewoong Baek, Anshu Bhattacharya, Laura Schulz, Marek Widera, Ahmad Reza Mehdipour, Georg Tascher, Paul P. Geurink, Alexander Wilhelm, Gerbrand J. van der Heden van Noort, Huib Ovaa, Stefan Müller, Klaus-Peter Knobeloch, Krishnaraj Rajalingam, Brenda A. Schulman, Jindrich Cinatl, Gerhard Hummer, Sandra Ciesek and Ivan Dikic, 29 July 2020, Nature.DOI: 10.1038/ s41586-020-2601-5.

When it comes to an infection, the SARS-CoV-2 infection need to conquer various defense reaction of the body, including its non-specific or inherent immune defense. During this process, contaminated body cells launch messenger compounds called type 1 interferons. These attract natural killer cells, which kill the contaminated cells.