コウモリ細胞が致死性ウイルスの研究に貢献(Bat cells could aid in fighting humans’ most deadly diseases)

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2025-04-15 ワシントン州立大学(WSU)

ワシントン州立大学の研究チームは、コウモリの細胞が人間にとって致命的なウイルスに対する治療法開発に役立つ可能性を発見。コウモリはハンタウイルスやコロナウイルスを保有しても発症せず、過剰な炎症を抑える免疫応答を持つ。研究では、細胞死を防ぐメカニズムが確認され、この特性が炎症性疾患や自己免疫疾患の新たな治療法に応用できる可能性が示唆された。

<関連情報>

コウモリのツールボックスの拡張 コウモリの細胞株と試薬により、ウイルス感受性と自然免疫応答の特性解析が可能になる Expanding the bat toolbox: Carollia perspicillata bat cell lines and reagents enable the characterization of viral susceptibility and innate immune responses

Victoria Gonzalez,Cierra Word,Nahomi Guerra-Pilaquinga,Mitra Mazinani,Stephen Fawcett,Christine Portfors,Darryl Falzarano,Alison M. Kell,Rohit K. Jangra,Arinjay Banerjee
PLOS Biology  Published: April 15, 2025
DOI:https://doi.org/10.1371/journal.pbio.3003098

コウモリ細胞が致死性ウイルスの研究に貢献(Bat cells could aid in fighting humans’ most deadly diseases)

Abstract

Multiple viruses that are highly pathogenic in humans are known to have evolved in bats. How bats tolerate infection with these viruses, however, is poorly understood. As viruses engage in a wide range of interactions with their hosts, it is essential to study bat viruses in a system that resembles their natural environment like bat-derived in vitro cellular models. However, stable and accessible bat cell lines are not widely available for the broader scientific community. Here, we generated in vitro reagents for the Seba’s short-tailed bat (Carollia perspicillata), tested multiple methods of immortalization, and characterized their susceptibility to virus infection and response to immune stimulation. Using pseudotyped virus library and authentic virus infections, we show that these C. perspicillata cell lines derived from a diverse array of tissues are susceptible to viruses bearing the glycoprotein of numerous orthohantaviruses, including Andes and Hantaan virus and are also susceptible to live hantavirus infection. Furthermore, stimulation with synthetic double-stranded RNA prior to infection with vesicular stomatitis virus and Middle Eastern respiratory syndrome coronavirus induced a protective antiviral response, demonstrating the suitability of our cell lines to study the bat antiviral immune response. Taken together, the approaches outlined here will inform future efforts to develop in vitro tools for virology from non-model organisms and these C. perspicillata cell lines will enable studies on virus–host interactions in these bats.

医療・健康
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