Immune NetworkPub Date : 2024-06-25eCollection Date: 2024-08-01DOI: 10.4110/in.2024.24.e28
Wooseob Kim
{"title":"Germinal Center Response to mRNA Vaccination and Impact of Immunological Imprinting on Subsequent Vaccination.","authors":"Wooseob Kim","doi":"10.4110/in.2024.24.e28","DOIUrl":"10.4110/in.2024.24.e28","url":null,"abstract":"<p><p>Vaccines are the most effective intervention currently available, offering protective immunity against targeted pathogens. The emergence of the coronavirus disease 2019 pandemic has prompted rapid development and deployment of lipid nanoparticle encapsulated, mRNA-based vaccines. While these vaccines have demonstrated remarkable immunogenicity, concerns persist regarding their ability to confer durable protective immunity to continuously evolving severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants. This review focuses on human B cell responses induced by SARS-CoV-2 mRNA vaccination, with particular emphasis on the crucial role of germinal center reactions in shaping enduring protective immunity. Additionally, we explored observations of immunological imprinting and dynamics of recalled pre-existing immunity following variants of concern-based booster vaccination. Insights from this review contribute to comprehensive understanding B cell responses to mRNA vaccination in humans, thereby refining vaccination strategies for optimal and sustained protection against evolving coronavirus variants.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 4","pages":"e28"},"PeriodicalIF":4.3,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377948/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-06-24eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e27
Hyo-Min Park, Jae-Young Park, Na-Yeon Kim, Hyemoon Kim, Hong-Gyum Kim, Dong-Ju Son, Jin Tae Hong, Do-Young Yoon
{"title":"Recombinant Human IL-32θ Induces Polarization Into M1-like Macrophage in Human Monocytic Cells.","authors":"Hyo-Min Park, Jae-Young Park, Na-Yeon Kim, Hyemoon Kim, Hong-Gyum Kim, Dong-Ju Son, Jin Tae Hong, Do-Young Yoon","doi":"10.4110/in.2024.24.e27","DOIUrl":"10.4110/in.2024.24.e27","url":null,"abstract":"<p><p>The tumor microenvironment (TME) is formed by several immune cells. Notably, tumor-associated macrophages (TAMs) are existed in the TME that induce angiogenesis, metastasis, and proliferation of cancer cells. Recently, a point-mutated variant of IL-32θ was discovered in breast cancer tissues, which suppressed migration and proliferation through intracellular pathways. Although the relationship between cancer and IL-32 has been previously studied, the effects of IL-32θ on TAMs remain elusive. Recombinant human IL-32θ (rhIL-32θ) was generated using an <i>Escherichia coli</i> expression system. To induce M0 macrophage polarization, THP-1 cells were stimulated with PMA. After PMA treatment, the cells were cultured with IL-4 and IL-13, or rhIL-32θ. The mRNA level of M1 macrophage markers (IL-1β, TNFα, inducible nitric oxide synthase) were increased by rhIL-32θ in M0 macrophages. On the other hand, the M2 macrophage markers (CCL17, CCL22, TGFβ, CD206) were decreased by rhIL-32θ in M2 macrophages. rhIL-32θ induced nuclear translocation of the NF-κB via regulation of the MAPK (p38) pathway. In conclusion, point-mutated rhIL-32θ induced the polarization to M1-like macrophages through the MAPK (p38) and NF-κB (p65/p50) pathways.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e27"},"PeriodicalIF":4.3,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224673/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-06-24eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e26
Jisu Kim, Jee Yeon Choi, Hyeyoung Min, Kwang Woo Hwang
{"title":"Exploring the Potential of Glycolytic Modulation in Myeloid-Derived Suppressor Cells for Immunotherapy and Disease Management.","authors":"Jisu Kim, Jee Yeon Choi, Hyeyoung Min, Kwang Woo Hwang","doi":"10.4110/in.2024.24.e26","DOIUrl":"10.4110/in.2024.24.e26","url":null,"abstract":"<p><p>Recent advancements in various technologies have shed light on the critical role of metabolism in immune cells, paving the way for innovative disease treatment strategies through immunometabolism modulation. This review emphasizes the glucose metabolism of myeloid-derived suppressor cells (MDSCs), an emerging pivotal immunosuppressive factor especially within the tumor microenvironment. MDSCs, an immature and heterogeneous myeloid cell population, act as a double-edged sword by exacerbating tumors or mitigating inflammatory diseases through their immune-suppressive functions. Numerous recent studies have centered on glycolysis of MDSC, investigating the regulation of altered glycolytic pathways to manage diseases. However, the specific changes in MDSC glycolysis and their exact functions continue to be areas of ongoing discussion yet. In this paper, we review a range of current findings, including the latest research on the alteration of glycolysis in MDSCs, the consequential functional alterations in these cells, and the outcomes of attempts to modulate MDSC functions by regulating glycolysis. Ultimately, we will provide insights into whether these research efforts could be translated into clinical applications.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e26"},"PeriodicalIF":4.3,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224668/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-06-19eCollection Date: 2024-08-01DOI: 10.4110/in.2024.24.e25
Sung Hoon Jang, Joo Sung Shim, Jieun Kim, Eun Gyeol Shin, Jong Hwi Yoon, Lucy Eunju Lee, Ho-Keun Kwon, Jason Jungsik Song
{"title":"Mitochondria Activity and CXCR4 Collaboratively Promote the Differentiation of CD11c<sup>+</sup> B Cells Induced by TLR9 in Lupus.","authors":"Sung Hoon Jang, Joo Sung Shim, Jieun Kim, Eun Gyeol Shin, Jong Hwi Yoon, Lucy Eunju Lee, Ho-Keun Kwon, Jason Jungsik Song","doi":"10.4110/in.2024.24.e25","DOIUrl":"10.4110/in.2024.24.e25","url":null,"abstract":"<p><p>Lupus is characterized by the autoantibodies against nuclear Ags, underscoring the importance of identifying the B cell subsets driving autoimmunity. Our research focused on the mitochondrial activity and CXCR4 expression in CD11c<sup>+</sup> B cells from lupus patients after <i>ex vivo</i> stimulation with a TLR9 agonist, CpG-oligodeoxyribonucleotide (ODN). We also evaluated the response of CD11c<sup>+</sup> B cells in ODN-injected mice. Post-<i>ex vivo</i> ODN stimulation, we observed an increase in the proportion of CD11c<sup>hi</sup> cells, with elevated mitochondrial activity and CXCR4 expression in CD11c<sup>+</sup> B cells from lupus patients. <i>In vivo</i> experiments showed similar patterns, with TLR9 stimulation enhancing mitochondrial and CXCR4 activities in CD11c<sup>hi</sup> B cells, leading to the generation of anti-dsDNA plasmablasts. The CXCR4 inhibitor AMD3100 and the mitochondrial complex I inhibitor IM156 significantly reduced the proportion of CD11c<sup>+</sup> B cells and autoreactive plasmablasts. These results underscore the pivotal roles of mitochondria and CXCR4 in the production of autoreactive plasmablasts.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 4","pages":"e25"},"PeriodicalIF":4.3,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377949/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-06-05eCollection Date: 2024-08-01DOI: 10.4110/in.2024.24.e24
Eun-Hyeon Shim, Sae-Hae Kim, Doo-Jin Kim, Yong-Suk Jang
{"title":"Complement C5a Receptor Signaling in Macrophages Enhances Trained Immunity Through mTOR Pathway Activation.","authors":"Eun-Hyeon Shim, Sae-Hae Kim, Doo-Jin Kim, Yong-Suk Jang","doi":"10.4110/in.2024.24.e24","DOIUrl":"10.4110/in.2024.24.e24","url":null,"abstract":"<p><p>Complement C5a receptor (C5aR) signaling in immune cells has various functions, inducing inflammatory or anti-inflammatory responses based on the type of ligand present. The Co1 peptide (SFHQLPARSRPLP) has been reported to activate C5aR signaling in dendritic cells. We investigated the effect of C5aR signaling via the Co1 peptide on macrophages. In peritoneal macrophages, the interaction between C5aR and the Co1 peptide activated the mTOR pathway, resulting in the production of pro-inflammatory cytokines. Considering the close associations of mTOR signaling with IL-6 and TNF-α in macrophage training, our findings indicate that the Co1 peptide amplifies β-glucan-induced trained immunity. Overall, this research highlights a previously underappreciated aspect of C5aR signaling in trained immunity, and posits that the Co1 peptide is a potentially effective immunomodulator for enhancing trained immunity.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 4","pages":"e24"},"PeriodicalIF":4.3,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377950/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-05-31eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e23
Hyunseo Lim, Young Ho Choe, Jaeho Lee, Gi Eun Kim, Jin Won Hyun, Young-Min Hyun
{"title":"Neutrophil Migration Is Mediated by VLA-6 in the Inflamed Adipose Tissue.","authors":"Hyunseo Lim, Young Ho Choe, Jaeho Lee, Gi Eun Kim, Jin Won Hyun, Young-Min Hyun","doi":"10.4110/in.2024.24.e23","DOIUrl":"10.4110/in.2024.24.e23","url":null,"abstract":"<p><p>Adipose tissue, well known for its endocrine function, plays an immunological role in the body. The inflamed adipose tissue under LPS-induced systemic inflammation is characterized by the dominance of pro-inflammatory immune cells, particularly neutrophils. Although migration of macrophages toward damaged or dead adipocytes to form a crown-like structure in inflamed adipose tissue has been revealed, the neutrophilic interaction with adipocytes or the extracellular matrix remains unknown. Here, we demonstrated the involvement of adhesion molecules, particularly integrin α6β1, of neutrophils in adipocytes or the extracellular matrix of inflamed adipose tissue interaction. These results suggest that disrupting the adhesion between adipose tissue components and neutrophils may govern the accumulation of excessive neutrophils in inflamed tissues, a prerequisite in developing anti-inflammatory therapeutics by inhibiting inflammatory immune cells.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e23"},"PeriodicalIF":4.3,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-05-29eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e22
Seong Hee Jeon, Yong Sun Lee, In Jun Yeo, Hee Pom Lee, Jaesuk Yoon, Dong Ju Son, Sang-Bae Han, Jin Tae Hong
{"title":"Erratum: Inhibition of Chitinase-3-like-1 by K284-6111 Reduces Atopic Skin Inflammation via Repressing Lactoferrin.","authors":"Seong Hee Jeon, Yong Sun Lee, In Jun Yeo, Hee Pom Lee, Jaesuk Yoon, Dong Ju Son, Sang-Bae Han, Jin Tae Hong","doi":"10.4110/in.2024.24.e22","DOIUrl":"https://doi.org/10.4110/in.2024.24.e22","url":null,"abstract":"<p><p>[This corrects the article e22 in vol. 21, PMID: 34277112.].</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e22"},"PeriodicalIF":4.3,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224670/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-05-29eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e21
Dong Hyun Kim, Won-Woo Lee
{"title":"IL-1 Receptor Dynamics in Immune Cells: Orchestrating Immune Precision and Balance.","authors":"Dong Hyun Kim, Won-Woo Lee","doi":"10.4110/in.2024.24.e21","DOIUrl":"10.4110/in.2024.24.e21","url":null,"abstract":"<p><p>IL-1, a pleiotropic cytokine with profound effects on various cell types, particularly immune cells, plays a pivotal role in immune responses. The proinflammatory nature of IL-1 necessitates stringent control mechanisms of IL-1-mediated signaling at multiple levels, encompassing transcriptional and translational regulation, precursor processing, as well as the involvement of a receptor accessory protein, a decoy receptor, and a receptor antagonist. In T-cell immunity, IL-1 signaling is crucial during both the priming and effector phases of immune reactions. The fine-tuning of IL-1 signaling hinges upon two distinct receptor types; the functional IL-1 receptor (IL-1R) 1 and the decoy IL-1R2, accompanied by ancillary molecules such as the IL-1R accessory protein (IL-1R3) and IL-1R antagonist. IL-1R1 signaling by IL-1β is critical for the differentiation, expansion, and survival of Th17 cells, essential for defense against extracellular bacteria or fungi, yet implicated in autoimmune disease pathogenesis. Recent investigations emphasize the physiological importance of IL-1R2 expression, particularly in its capacity to modulate IL-1-dependent responses within Tregs. The precise regulation of IL-1R signaling is indispensable for orchestrating appropriate immune responses, as unchecked IL-1 signaling has been implicated in inflammatory disorders, including Th17-mediated autoimmunity. This review provides a thorough exploration of the IL-1R signaling complex and its pivotal roles in immune regulation. Additionally, it highlights recent advancements elucidating the mechanisms governing the expression of IL-1R1 and IL-1R2, underscoring their contributions to fine-tuning IL-1 signaling. Finally, the review briefly touches upon therapeutic strategies targeting IL-1R signaling, with potential clinical applications.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e21"},"PeriodicalIF":4.3,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141556487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-05-29eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e20
Hongryeol Park, Chan Hee Lee
{"title":"The Impact of Pulmonary Disorders on Neurological Health (Lung-Brain Axis).","authors":"Hongryeol Park, Chan Hee Lee","doi":"10.4110/in.2024.24.e20","DOIUrl":"10.4110/in.2024.24.e20","url":null,"abstract":"<p><p>The brain and lungs, vital organs in the body, play essential roles in maintaining overall well-being and survival. These organs interact through complex and sophisticated bi-directional pathways known as the 'lung-brain axis', facilitated by their close proximity and neural connections. Numerous studies have underscored the mediation of the lung-brain axis by inflammatory responses and hypoxia-induced damage, which are pivotal to the progression of both pulmonary and neurological diseases. This review aims to delve into how pulmonary diseases, including acute/chronic airway diseases and pulmonary conditions, can instigate neurological disorders such as stroke, Alzheimer's disease, and Parkinson's disease. Additionally, we highlight the emerging research on the lung microbiome which, drawing parallels between the gut and lungs in terms of microbiome contents, may play a significant role in modulating brain health. Ultimately, this review paves the way for exciting avenues of future research and therapeutics in addressing respiratory and neurological diseases.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e20"},"PeriodicalIF":4.3,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224666/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Immune NetworkPub Date : 2024-05-07eCollection Date: 2024-06-01DOI: 10.4110/in.2024.24.e19
Sang-Hyun Kim, Erica Españo, Bill Thaddeus Padasas, Ju-Ho Son, Jihee Oh, Richard J Webby, Young-Ran Lee, Chan-Su Park, Jeong-Ki Kim
{"title":"Influenza Virus-Derived CD8 T Cell Epitopes: Implications for the Development of Universal Influenza Vaccines.","authors":"Sang-Hyun Kim, Erica Españo, Bill Thaddeus Padasas, Ju-Ho Son, Jihee Oh, Richard J Webby, Young-Ran Lee, Chan-Su Park, Jeong-Ki Kim","doi":"10.4110/in.2024.24.e19","DOIUrl":"10.4110/in.2024.24.e19","url":null,"abstract":"<p><p>The influenza virus poses a global health burden. Currently, an annual vaccine is used to reduce influenza virus-associated morbidity and mortality. Most influenza vaccines have been developed to elicit neutralizing Abs against influenza virus. These Abs primarily target immunodominant epitopes derived from hemagglutinin (HA) or neuraminidase (NA) of the influenza virus incorporated in vaccines. However, HA and NA are highly variable proteins that are prone to antigenic changes, which can reduce vaccine efficacy. Therefore, it is essential to develop universal vaccines that target immunodominant epitopes derived from conserved regions of the influenza virus, enabling cross-protection among different virus variants. The internal proteins of the influenza virus serve as ideal targets for universal vaccines. These internal proteins are presented by MHC class I molecules on Ag-presenting cells, such as dendritic cells, and recognized by CD8 T cells, which elicit CD8 T cell responses, reducing the likelihood of disease and influenza viral spread by inducing virus-infected cell apoptosis. In this review, we highlight the importance of CD8 T cell-mediated immunity against influenza viruses and that of viral epitopes for developing CD8 T cell-based influenza vaccines.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 3","pages":"e19"},"PeriodicalIF":4.3,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11224667/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141554660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}