A novel platform for attenuating immune hyperactivity using EXO‐CD24 in COVID‐19 and beyond

Autor: Shiran Shapira, Marina Ben Shimon, Mori Hay‐Levi, Gil Shenberg, Guy Choshen, Lian Bannon, Michael Tepper, Dina Kazanov, Jonathan Seni, Shahar Lev‐Ari, Michael Peer, Dimitrios Boubas, Justin Stebbing, Sotirios Tsiodras, Nadir Arber
Rok vydání: 2022
Předmět:
Zdroj: EMBO Molecular Medicine. 14
ISSN: 1757-4684
1757-4676
Popis: A small but significant proportion of COVID-19 patients develop life-threatening cytokine storm. We have developed a new anti-inflammatory drug, EXO-CD24, a combination of an immune checkpoint (CD24) and a delivery platform (exosomes). CD24 inhibits the NF-kB pathway and the production of cytokines/chemokines. EXO-CD24 discriminates damage-from pathogen-associated molecular patterns (DAMPs and PAMPs) therefore does not interfere with viral clearance. EXO-CD24 was produced and purified from CD24-expressing 293-TREx™ cells. Exosomes displaying murine CD24 (mCD24) were also created. EXO-CD24/mCD24 were characterized and examined, for safety and efficacy, in vitro and in vivo. In a phase Ib/IIa study, 35 patients with moderate-high severity COVID-19 were recruited and given escalating doses, 10
Databáze: OpenAIRE
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