TY - JOUR A1 - Koch, Benjamin Florian T1 - SARS-CoV-2 and human retroelements: a case for molecular mimicry? T2 - BMC genomic data N2 - Background: The factors driving the late phase of COVID-19 are still poorly understood. However, autoimmunity is an evolving theme in COVID-19’s pathogenesis. Additionally, deregulation of human retroelements (RE) is found in many viral infections, and has also been reported in COVID-19. Results: Unexpectedly, coronaviruses (CoV) – including SARS-CoV-2 – harbour many RE-identical sequences (up to 35 base pairs), and some of these sequences are part of SARS-CoV-2 epitopes associated to COVID-19 severity. Furthermore, RE are expressed in healthy controls and human cells and become deregulated after SARS-CoV-2 infection, showing mainly changes in long interspersed nuclear element (LINE1) expression, but also in endogenous retroviruses. Conclusion: CoV and human RE share coding sequences, which are targeted by antibodies in COVID-19 and thus could induce an autoimmune loop by molecular mimicry. KW - Coronaviruses KW - SARS-CoV-2 KW - COVID-19 epitope signatures KW - Autoimmunity KW - Molecular mimicry KW - Human retroelements KW - Long interspersed nuclear elements (LINE) KW - Endogenous retroviruses (ERV) Y1 - 2022 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/69511 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-695117 SN - 2730-6844 N1 - Open Access funding enabled and organized by Projekt DEAL. VL - 23 IS - art. 27 SP - 1 EP - 9 PB - BioMed Central CY - [London] ER -