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Autoimmune Processes Involved in Organ System Failure Following Infection with SARS-CoV-2

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Coronavirus Disease - COVID-19

Part of the book series: Advances in Experimental Medicine and Biology ((AEMB,volume 1318))

Abstract

During the COVID-19 pandemic associated with high incidence, transmissibility, and mortality, this chapter focuses on three phases of the disease: initial exposure, initiation of the immune response to the agent, and finally, an inflammatory/autoimmune-like presentation with pulmonary, neurological, and renal failure and disseminated intravascular coagulation which occurs in a small proportion of the patients. The elegant demonstration of the site of interaction between the spike (S) protein of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is the causative agent of COVID-19, and the ACE (angiotensin-converting enzyme) 2 receptor of cells distributed throughout the body has enabled research efforts to develop pharmacological and immune countermeasures to the viral phase of the disease. This chapter rapidly reviews the molecular and structural organization of SARS-CoV-2 and its interaction with ACE2. It is followed by a discussion over the role of the major histocompatibility complex (MHC) in recognition of the virus. The importance of rapid compartmentation of the viral genome into the target cells as opposed to the binding constant of the virus for the ACE receptor is discussed. Host factors affecting the immune response to the virus are examined, and the subsequent inflammatory dysregulation enabling the cytokine storm leading to system organ failure is described. Finally, the similarities of the clinical effects of the murine hepatitis virus-JHM (a coronavirus) on multi-organ systems (liver, brain, clotting cascade) as described by Perlman and colleagues permit insights regarding the role of the interaction between the host and the virus in developing the clinical presentation of the inflammatory/autoimmune disorders that occur in multiple sclerosis, neuromyelitis optica, and more interestingly, during the third phase of COVID-19.

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Acknowledgments

This manuscript is dedicated to Margaret Kornguth and Evelyn Marie Hawley. The authors thank them for their lifelong support of the scientific and research endeavors of their respective spouses. EMH succumbed to coronavirus disease 2019 (COVID-19) on April 17, 2020. We want to graciously acknowledge Doctors David R. Franz and John T. Pinto for their critical and valuable review of the manuscript.

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Correspondence to Steven E. Kornguth .

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© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG

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Kornguth, S.E., Hawley, R.J. (2021). Autoimmune Processes Involved in Organ System Failure Following Infection with SARS-CoV-2. In: Rezaei, N. (eds) Coronavirus Disease - COVID-19. Advances in Experimental Medicine and Biology, vol 1318. Springer, Cham. https://doi.org/10.1007/978-3-030-63761-3_21

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