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Coronavirus Disease (COVID-19): Pathophysiology 5.0
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Coronavirus Disease (COVID-19): Pathophysiology 5.0

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Pathology, Diagnostics, and Therapeutics".

Deadline for manuscript submissions: 29 June 2024 | Viewed by 1347

Special Issue Editors

Prof. Dr. Malgorzata Kloc

E-Mail Website
Guest Editor
Transplant Immunology, The Houston Methodist Research Institute, Houston, TX 77030, USA
Interests: macrophages; actin cytoskeleton; RhoA pathway; chronic rejection; transplantation; germ cells; stem cells; Xenopus laevis; development
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jacek Z. Kubiak

E-Mail Website
Guest Editor
Dynamics and Mechanics of Epithelia Group, Faculty of Medicine, Institute of Genetics and Development of Rennes, University of Rennes, CNRS, UMR 6290, 35043 Rennes, France
Interests: embryo development; cell cycle; gene regulation; cancer; stem cells; gonads; genetic diseases
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The COVID-19 pandemic triggered an astounding wave of research on all aspects of this novel viral disease. The pace of research on this completely unprecedented situation has been remarkable, resulting in the explosion of scientific reports and extraordinary achievements in the areas of treatment and prevention. The number of novel and efficient vaccines created is the best example of this. The avalanche of research in just one year vastly increased our knowledge of SARS-CoV-2 and other coronaviruses. We uncovered and understood some of the hitherto unknown mechanisms involved in the immune response to SARS-CoV-2 infection. Scientific research delivered novel antiviral drugs and treatments to decrease the severity of the disease and save human lives during the pandemic. Genetic research allows for the identification of continuously evolving novel variants of the virus, and epidemiological studies characterize as well as follow their propagation in various regions of the world. Unprecedented phenomena were discovered, such as enormous differences in viral infectivity and the course of the disease in children and adults or between different individuals. Although new observations and research continue to expand our knowledge about this disease, we still have many unanswered questions. Does COVID-19 provoke diabetes? Does it cause orchitis? Why are most children quite resistant to SARS-CoV-2 infection, while some of them develop pediatric inflammatory multisystem syndrome (PIMS)? Why do some COVID-19 patients continue to experience symptoms after their initial recovery? These people suffer from the so-called post-COVID-19 syndrome or "long COVID-19." What causes these long-term effects? Why do some patients, a long time after their purported recovery, suffer from nervous system and brain damage? Another area that is still not fully understood is the responses of different types of immune cells to the initial infection and their role in both the halting and propagation of the virus within the patient’s body. Additionally, why in some, but not all, patients does the immune system go into overdrive, causing a cytokine storm?

In this Special Issue, entitled “Coronavirus Disease (COVID-19): Pathophysiology”, we aim to present research and theoretical papers addressing all these questions in addition to many others related to COVID-19. Thus, we invite colleagues working in any field related to COVID-19, from viral genetics to epidemiology and computer modeling, to submit their research for publication in this Special Issue. We believe that this Special Issue of the International Journal of Molecular Sciences will be not only very timely but also scientifically innovative and exciting.

Prof. Dr. Malgorzata Kloc
Prof. Dr. Jacek Z. Kubiak
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • SARS-CoV-2
  • coronavirus
  • pandemic
  • viral diseases
  • pediatrics
  • inflammation
  • immune cells
  • macrophages
  • pneumonia
  • vaccines
  • cytokines
  • cytokine storm
  • PIMS
  • immunity

Related Special Issues

Published Papers (2 papers)

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Research

19 pages, 1565 KiB  
Article
Targeting the High-Density Lipoprotein Proteome for the Treatment of Post-Acute Sequelae of SARS-CoV-2
by Karsten Grote, Ann-Christin Schaefer, Muhidien Soufi, Volker Ruppert, Uwe Linne, Aditya Mukund Bhagwat, Witold Szymanski, Johannes Graumann, Yana Gercke, Sümeya Aldudak, Denise Hilfiker-Kleiner, Elisabeth Schieffer and Bernhard Schieffer
Int. J. Mol. Sci. 2024, 25(8), 4522; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms25084522 - 20 Apr 2024
Viewed by 692
Abstract
Here, we target the high-density lipoprotein (HDL) proteome in a case series of 16 patients with post-COVID-19 symptoms treated with HMG-Co-A reductase inhibitors (statin) plus angiotensin II type 1 receptor blockers (ARBs) for 6 weeks. Patients suffering from persistent symptoms (post-acute sequelae) after [...] Read more.
Here, we target the high-density lipoprotein (HDL) proteome in a case series of 16 patients with post-COVID-19 symptoms treated with HMG-Co-A reductase inhibitors (statin) plus angiotensin II type 1 receptor blockers (ARBs) for 6 weeks. Patients suffering from persistent symptoms (post-acute sequelae) after serologically confirmed SARS-CoV-2 infection (post-COVID-19 syndrome, PCS, n = 8) or following SARS-CoV-2 vaccination (PVS, n = 8) were included. Asymptomatic subjects with corresponding serological findings served as healthy controls (n = 8/8). HDL was isolated using dextran sulfate precipitation and the HDL proteome of all study participants was analyzed quantitatively by mass spectrometry. Clinical symptoms were assessed using questionnaires before and after therapy. The inflammatory potential of the patients’ HDL proteome was addressed in human endothelial cells. The HDL proteome of patients with PCS and PVS showed no significant differences; however, compared to controls, the HDL from PVS/PCS patients displayed significant alterations involving hemoglobin, cytoskeletal proteins (MYL6, TLN1, PARVB, TPM4, FLNA), and amyloid precursor protein. Gene Ontology Biological Process (GOBP) enrichment analysis identified hemostasis, peptidase, and lipoprotein regulation pathways to be involved. Treatment of PVS/PCS patients with statins plus ARBs improved the patients’ clinical symptoms. After therapy, three proteins were significantly increased (FAM3C, AT6AP2, ADAM10; FDR < 0.05) in the HDL proteome from patients with PVS/PCS. Exposure of human endothelial cells with the HDL proteome from treated PVS/PCS patients revealed reduced inflammatory cytokine and adhesion molecule expression. Thus, HDL proteome analysis from PVS/PCS patients enables a deeper insight into the underlying disease mechanisms, pointing to significant involvement in metabolic and signaling disturbances. Treatment with statins plus ARBs improved clinical symptoms and reduced the inflammatory potential of the HDL proteome. These observations may guide future therapeutic strategies for PVS/PCS patients. Full article
(This article belongs to the Special Issue Coronavirus Disease (COVID-19): Pathophysiology 5.0)
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17 pages, 8430 KiB  
Article
Histochemical Evidence for Reduced Immune Response in Nasal Mucosa of Patients with COVID-19
by Nicole Power Guerra, Martin Bierkämper, Jessica Pablik, Thomas Hummel and Martin Witt
Int. J. Mol. Sci. 2024, 25(8), 4427; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms25084427 - 17 Apr 2024
Viewed by 483
Abstract
The primary entry point of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the nasal mucosa, where viral-induced inflammation occurs. When the immune response fails against SARS-CoV-2, understanding the altered response becomes crucial. This study aimed to compare SARS-CoV-2 immunological responses in the [...] Read more.
The primary entry point of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the nasal mucosa, where viral-induced inflammation occurs. When the immune response fails against SARS-CoV-2, understanding the altered response becomes crucial. This study aimed to compare SARS-CoV-2 immunological responses in the olfactory and respiratory mucosa by focusing on epithelia and nerves. Between 2020 and 2022, we obtained post mortem tissues from the olfactory cleft from 10 patients with histologically intact olfactory epithelia (OE) who died with or from COVID-19, along with four age-matched controls. These tissues were subjected to immunohistochemical reactions using antibodies against T cell antigens CD3, CD8, CD68, and SARS spike protein for viral evidence. Deceased patients with COVID-19 exhibited peripheral lymphopenia accompanied by a local decrease in CD3+ cells in the OE. However, SARS-CoV-2 spike protein was sparsely detectable in the OE. With regard to the involvement of nerve fibers, the present analysis suggested that SARS-CoV-2 did not significantly alter the immune response in olfactory or trigeminal fibers. On the other hand, SARS spike protein was detectable in both nerves. In summary, the post mortem investigation demonstrated a decreased T cell response in patients with COVID-19 and signs of SARS-CoV-2 presence in olfactory and trigeminal fibers. Full article
(This article belongs to the Special Issue Coronavirus Disease (COVID-19): Pathophysiology 5.0)
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