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Journals
Biomolecules
Special Issues
Insights of Innate Immunology into Inflammation and Infections
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Insights of Innate Immunology into Inflammation and Infections

A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Molecular Medicine".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 8176

Special Issue Editors

Dr. Zhichao Fan

E-Mail Website
Guest Editor
UConn Health, Farmington, CT, USA
Interests: inflammatory diseases; innate immunity; neutrophils; monocytes; microscopy
Special Issues, Collections and Topics in MDPI journals
Dr. Bo Liu

E-Mail Website
Guest Editor
Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
Interests: dysregulation of innate immunity in inflammatory diseases and infections, with a particular interest in nucleic acid sensing and receptor trafficking
Dr. Yi Zhang

E-Mail Website
Guest Editor
Zhongshan Hospital, Fudan University, Shanghai, China
Interests: immune regulation; organ transplantation; inflammation; cellular therapy

Special Issue Information

Dear Colleagues,

Innate immunity plays a key role in a wide range of pathology, including infections and sterile inflammatory diseases. Innate immune cells, including neutrophils, monocytes, macrophages, dendritic cells, natural killing cells, etc., fight against infections and are also involved in both pathogenesis and healing. Deficiency in innate immunity may cause severe infections. Overactivation of innate immunity, such as in the cases of sepsis and COVID-19, may cause tissue damage, restructure, fibrosis, multiple organ failure, and death. Innate immune cells are also crucial for inflammation resolution and wound healing. Thus, targeting innate immunity may provide various ways to treat different infectious and inflammatory diseases.

The Special Issue encourages submissions focusing on how the innate immune system regulates the pathogenesis and healing of infection or inflammatory diseases. Basic studies on innate immune system signaling and regulation, treatment targeting innate immune systems, and microscopy studies of innate immunity are also encouraged.

Dr. Zhichao Fan
Dr. Bo Liu
Dr. Yi Zhang
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. Biomolecules is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). 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

  • innate immunity
  • innate immune cells
  • inflammation
  • infection

Published Papers (3 papers)

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Review

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13 pages, 1179 KiB  
Review
Biomarkers for Serious Bacterial Infections in Febrile Children
by Luca Bernardi, Gianluca Bossù, Giulia Dal Canto, Giuliana Giannì and Susanna Esposito
Biomolecules 2024, 14(1), 97; https://doi.org/10.3390/biom14010097 - 12 Jan 2024
Viewed by 1357
Abstract
Febrile infections in children are a common cause of presentation to the emergency department (ED). While viral infections are usually self-limiting, sometimes bacterial illnesses may lead to sepsis and severe complications. Inflammatory biomarkers such as C reactive protein (CRP) and procalcitonin are usually [...] Read more.
Febrile infections in children are a common cause of presentation to the emergency department (ED). While viral infections are usually self-limiting, sometimes bacterial illnesses may lead to sepsis and severe complications. Inflammatory biomarkers such as C reactive protein (CRP) and procalcitonin are usually the first blood exams performed in the ED to differentiate bacterial and viral infections; nowadays, a better understanding of immunochemical pathways has led to the discovery of new and more specific biomarkers that could play a role in the emergency setting. The aim of this narrative review is to provide the most recent evidence on biomarkers and predictor models, combining them for serious bacterial infection (SBI) diagnosis in febrile children. Literature analysis shows that inflammatory response is a complex mechanism in which many biochemical and immunological factors contribute to the host response in SBI. CRP and procalcitonin still represent the most used biomarkers in the pediatric ED for the diagnosis of SBI. Their sensibility and sensitivity increase when combined, and for this reason, it is reasonable to take them both into consideration in the evaluation of febrile children. The potential of machine learning tools, which represent a real novelty in medical practice, in conjunction with routine clinical and biological information, may improve the accuracy of diagnosis and target therapeutic options in SBI. However, studies on this matter are not yet validated in younger populations, making their relevance in pediatric precision medicine still uncertain. More data from further research are needed to improve clinical practice and decision making using these new technologies. Full article
(This article belongs to the Special Issue Insights of Innate Immunology into Inflammation and Infections)
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23 pages, 445 KiB  
Review
Targeting Neutrophil β2-Integrins: A Review of Relevant Resources, Tools, and Methods
by Haleigh E. Conley and M. Katie Sheats
Biomolecules 2023, 13(6), 892; https://doi.org/10.3390/biom13060892 - 26 May 2023
Cited by 4 | Viewed by 1652
Abstract
Neutrophils are important innate immune cells that respond during inflammation and infection. These migratory cells utilize β2-integrin cell surface receptors to move out of the vasculature into inflamed tissues and to perform various anti-inflammatory responses. Although critical for fighting off infection, [...] Read more.
Neutrophils are important innate immune cells that respond during inflammation and infection. These migratory cells utilize β2-integrin cell surface receptors to move out of the vasculature into inflamed tissues and to perform various anti-inflammatory responses. Although critical for fighting off infection, neutrophil responses can also become dysregulated and contribute to disease pathophysiology. In order to limit neutrophil-mediated damage, investigators have focused on β2-integrins as potential therapeutic targets, but so far these strategies have failed in clinical trials. As the field continues to move forward, a better understanding of β2-integrin function and signaling will aid the design of future therapeutics. Here, we provide a detailed review of resources, tools, experimental methods, and in vivo models that have been and will continue to be utilized to investigate the vitally important cell surface receptors, neutrophil β2-integrins. Full article
(This article belongs to the Special Issue Insights of Innate Immunology into Inflammation and Infections)

Other

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11 pages, 1065 KiB  
Hypothesis
Does SARS-CoV-2 Induce IgG4 Synthesis to Evade the Immune System?
by Alberto Rubio-Casillas, Elrashdy M. Redwan and Vladimir N. Uversky
Biomolecules 2023, 13(9), 1338; https://doi.org/10.3390/biom13091338 - 01 Sep 2023
Cited by 3 | Viewed by 4602
Abstract
SARS-CoV-2, the virus that causes the COVID-19 disease, has been shown to cause immune suppression in certain individuals. This can manifest as a reduced ability of the host’s immune system to effectively control the infection. Studies have reported that patients with COVID-19 can [...] Read more.
SARS-CoV-2, the virus that causes the COVID-19 disease, has been shown to cause immune suppression in certain individuals. This can manifest as a reduced ability of the host’s immune system to effectively control the infection. Studies have reported that patients with COVID-19 can exhibit a decline in white blood cell counts, including natural killer cells and T cells, which are integral components of the immune system’s response to viral pathogens. These cells play critical roles in the immune response to viral infections, and their depletion can make it harder for the body to mount an effective defense against the virus. Additionally, the virus can also directly infect immune cells, further compromising their ability to function. Some individuals with severe COVID-19 pneumonia may develop a “cytokine storm”, an overactive immune response that may result in tissue damage and organ malfunction. The underlying mechanisms of immune suppression in SARS-CoV-2 are not entirely understood at this time, and research is being conducted to gain a more comprehensive understanding. Research has shown that severe SARS-CoV-2 infection promotes the synthesis of IgG4 antibodies. In this study, we propose the hypothesis that IgG4 antibodies produced by B cells in response to infection by SARS-CoV-2 generate immunological tolerance, which prevents its elimination and leads to persistent and chronic infection. In summary, we believe that this constitutes another immune evasion mechanism that bears striking similarities to that developed by cancer cells to evade immune surveillance. Full article
(This article belongs to the Special Issue Insights of Innate Immunology into Inflammation and Infections)
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