Beyond acute infection: mechanisms underlying post-acute sequelae of COVID-19 (PASC).

Publication date: Nov 04, 2024

Immune dysregulation is a key aspect of post-acute sequelae of coronavirus disease 2019 (PASC), also known as long COVID, with sustained activation of immune cells, T cell exhaustion, skewed B cell profiles, and disrupted immune communication thereby resulting in autoimmune-related complications. The gut is emerging as a critical link between microbiota, metabolism and overall dysfunction, potentially sharing similarities with other chronic fatigue conditions and PASC. Immunothrombosis and neurological signalling dysfunction emphasise the complex interplay between the immune system, blood clotting, and the central nervous system in the context of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Clear research gaps in the design of PASC studies, especially in the context of longitudinal research, stand out as significant areas of concern.

Concepts Keywords
Coronavirus COVID-19
Covid Gastrointestinal Microbiome
Immunothrombosis Humans
Long Post-Acute COVID-19 Syndrome
Research SARS-CoV-2

Semantics

Type Source Name
disease IDO acute infection
disease MESH post-acute sequelae of COVID-19
disease MESH sequelae
disease MESH coronavirus disease 2019
disease MESH T cell exhaustion
disease IDO cell
pathway REACTOME Metabolism
disease MESH Immunothrombosis
pathway REACTOME Immune System
disease MESH infection

Original Article

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