2025-04-30 カロリンスカ研究所(KI)
<関連情報>
- https://news.ki.se/long-covid-biomarkers-found-associated-with-respiratory-problems
- https://www.nature.com/articles/s41590-025-02135-5
長いCOVIDの異なる症状と関連する可溶性バイオマーカーの同定 Identification of soluble biomarkers that associate with distinct manifestations of long COVID
Yu Gao,Curtis Cai,Sarah Adamo,Elsa Biteus,Habiba Kamal,Lena Dager,Kelly L. Miners,Sian Llewellyn-Lacey,Kristin Ladell,Pragati S. Amratia,Kirsten Bentley,Simon Kollnberger,Jinghua Wu,Mily Akhirunnesa,Samantha A. Jones,Per Julin,Christer Lidman,Richard J. Stanton,Paul A. Goepfert,Michael J. Peluso,Steven G. Deeks,Helen E. Davies,Soo Aleman,Marcus Buggert & David A. Price
Nature Immunology Published:30 April 2025
DOI:https://doi.org/10.1038/s41590-025-02135-5
Abstract
Long coronavirus disease (COVID) is a heterogeneous clinical condition of uncertain etiology triggered by infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Here we used ultrasensitive approaches to profile the immune system and the plasma proteome in healthy convalescent individuals and individuals with long COVID, spanning geographically independent cohorts from Sweden and the United Kingdom. Symptomatic disease was not consistently associated with quantitative differences in immune cell lineage composition or antiviral T cell immunity. Healthy convalescent individuals nonetheless exhibited higher titers of neutralizing antibodies against SARS-CoV-2 than individuals with long COVID, and extensive phenotypic analyses revealed a subtle increase in the expression of some co-inhibitory receptors, most notably PD-1 and TIM-3, among SARS-CoV-2 nonspike-specific CD8+ T cells in individuals with long COVID. We further identified a shared plasma biomarker signature of disease linking breathlessness with apoptotic inflammatory networks centered on various proteins, including CCL3, CD40, IKBKG, IL-18 and IRAK1, and dysregulated pathways associated with cell cycle progression, lung injury and platelet activation, which could potentially inform the diagnosis and treatment of long COVID.
