journal
https://read.qxmd.com/read/36872855/pathogenic-nkt-cells-attenuate-urogenital-chlamydial-clearance-and-enhance-infertility
#1
JOURNAL ARTICLE
Charles W Armitage, Alison J Carey, Emily R Bryan, Avinash Kollipara, Logan K Trim, Kenneth W Beagley
Urogenital chlamydial infections continue to increase with over 127 million people affected annually, causing significant economic and public health pressures. Whilst the role of traditional MHCI and II peptide presentation is well defined in chlamydial infections, the role of lipid antigens in immunity remains unclear. Natural killer (NK) T cells are important effector cells that recognise and respond to lipid antigens during infections. Chlamydial infection of antigen-presenting cells facilitates presentation of lipid on the MHCI-like protein, CD1d, which stimulates NKT cells to respond...
March 5, 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36853017/high-frequency-of-memory-stem-cells-with-a-distinct-gene-signature-in-hiv-patients-with-treatment-interruption
#2
JOURNAL ARTICLE
Meenakshi Sachdeva, Aman Sharma, Sunil K Arora
Reservoirs of HIV remain a major obstacle to the complete eradication of virus despite regular anti-retroviral therapy (ART). Memory stem cells (Tscm), one of the major reservoirs are relatively less studied owing to their presence in lower numbers and inaccessible anatomical locations. We have evaluated the molecular characteristics of Tscms in patients with ART interruption (n=15) versus patients on uninterrupted ART (n=12) using flowcytometry. RNA sequencing was done in the sorted Tscms to study the differential gene expression...
February 28, 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36680379/the-adaptation-model-of-immunity-a-new-insight-into-etiology-and-treatment-of-multiple-sclerosis
#3
JOURNAL ARTICLE
Masoud H Manjili
Current research and drug development for multiple sclerosis (MS) is fully influenced by the self-nonself (SNS) model of immunity, suggesting that breakage of immunological tolerance towards self-antigens expressed in the central nervous system (CNS) is responsible for pathogenesis of MS; thus, immune suppressive drugs are recommended for the management of the disease. However, this model provides incomplete understanding of the causes and pathways involved in the onset and progression of MS and limits our ability to effectively treat this neurological disease...
January 20, 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36626120/the-value-of-anti-rods-and-rings-antibodies-in-chinese-population-of-dalian-city-a-retrospective-study
#4
JOURNAL ARTICLE
Yanan Gu, Si Li, Zhen Wang, Dong Yang
The study aimed to investigate the clinical significance of anti-rods and rings (anti-RR) antibodies in antinuclear antibodies (ANAs) test samples retrospectively. The laboratory data and clinical details of patients with positive anti-RR antibodies were collected and analysed between December 2017 and May 2022 in the First Affiliated Hospital of Dalian Medical University. A total of 72 665 patients were tested for ANAs. There were 45 632 patients discovered with positive ANAs (62.80%), only 131 patients presented with anti-RR antibodies (0...
January 10, 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36597222/simultaneous-neutralization-of-tgf-%C3%AE-and-il-6-attenuates-s-aureus-induced-arthritic-inflammation-through-differential-modulation-of-splenic-and-synovial-macrophages
#5
JOURNAL ARTICLE
Rituparna Ghosh, Rajen Dey, Ritasha Sawoo, Biswadev Bishayi
Septic arthritis is a joint disease caused by Staphylococcus aureus (S. aureus). Different macrophage populations contribute in various ways to control blood-borne infections and induce inflammatory responses. Macrophage tissue-resident niche is necessary for the suppression of chronic inflammation and may contribute to the pathogenesis of septic arthritis. Thus to obtain a resolution of the disease and restoration of synovial homeostasis it needs the activation of macrophages that further regulates the inflammatory consequences...
January 3, 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36597220/intracellular-immunoglobulin-a-iciga-in-protective-immunity-and-vaccines
#6
REVIEW
Tuck-Weng Kok, Angelo A Izzo, Maurizio Costabile
Virus neutralization at respiratory mucosal surfaces is important in the prevention of infection. Mucosal immunity is mediated mainly by extracellular secretory immunoglobulin A (sIgA) and its role has been well studied. However, the protective role of intracellular specific IgA (icIgA) is less well defined. Initial in vitro studies using epithelial cell lines with surface expressed polymeric immunoglobulin receptor (pIgR) in transwell culture chambers have shown that icIgA can neutralize influenza, parainfluenza, HIV, rotavirus and measles viruses...
January 3, 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36583598/macrophage-efferocytosis-in-atherosclerosis
#7
REVIEW
Łukasz Baraniecki, Beata Tokarz-Deptuła, Anhelli Syrenicz, Wiesław Deptuła
This paper presents the role of macrophage efferocytosis, the process of elimination of apoptotic bodies - elements formed during vascular atherosclerosis. The mechanisms of macrophage efferocytosis are presented, introducing the specific signals of this process, i.e. "find me", "eat me", "don't eat me". The role of the process of efferocytosis in the formation of vascular atherosclerosis is also presented, including the factors and mechanisms that determine it, as well as the factors that determine the maintenance of homeostasis in the vessels, including the formation of vascular atherosclerosis...
December 30, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36575914/combination-therapy-with-human-amniotic-epithelial-cells-and-hyaluronic-acid-promotes-immune-balance-recovery-in-type-1-diabetic-rats-through-local-engraftment
#8
JOURNAL ARTICLE
Ya-Wei Cheng, Yi Luo, Shu-Juan Zheng, Jian-Hui Xiao
Stem cell engraftment is currently a promising approach for type 1 diabetes mellitus (T1DM) treatment. In our previous study, engraftment of a combination of human amniotic epithelial cells (hAECs) and hyaluronic acid (HA) showed potent anti-diabetic effect in streptozotocin (STZ)-induced T1DM mice via tail vein injection. Here, we adopted a different route of stem cell delivery, i.e., via pancreatic subcapsular transplantation. This combined local engraftment of hAECs and HA in STZ-induced T1DM rats showed potent anti-diabetic activity, leading to stronger hypoglycemia, more intact islet structure, and increased number of insulin-positive cells compared with those with hAECs or insulin treatments...
December 27, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36575819/identification-of-tumor-antigens-and-immune-subtypes-in-the-development-of-an-anti-cancer-vaccine-for-endometrial-carcinoma
#9
JOURNAL ARTICLE
Jianyang Feng, Hong He
Therapeutic application of vaccines to endometrial carcinoma (EC) remains uncertain. In this study, we aimed to identify potential tumor antigens for use in the development of an anti-tumor mRNA vaccine and clarify immune subtypes and their characteristics for immunotherapeutic application in heterogeneous EC by integrating multi-omics data. Importantly, four potential tumor antigen candidates-PGR, RBPJ, PARVG, and MSX1-were identified and significantly correlated with better overall survival, disease-free survival, and distinct antigen-presenting cell infiltration in EC...
December 27, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36574978/ficoline-3-and-masp-2-gene-variants-in-siberian-arctic-populations-summarized-evidence-of-selective-pressure-for-the-high-frequency-of-lectin-complement-pathway-deficiency
#10
JOURNAL ARTICLE
Sergey Yu Tereshchenko, Marina V Smolnikova, Maxim B Freidin
UNLABELLED: Herewith, we provide novel original data about the prevalence of FCN3 rs532781899 and MASP2 rs72550870 variants among the newborns of aboriginal Siberian Arctic populations (Nenets and Dolgan-Nganasans) and Russians of East Siberia. This novel data has been analyzed along with the genetic data about other proteins of the lectin pathway of the complement system (mannose-binding lectin and ficolin-2) obtained earlier. METHODS: A total of 926 specimens of dried blood spots of the newborns were genotyped...
December 27, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36574966/immune-checkpoint-analysis-of-t-cell-responses-to-pp65-and-ie-1-antigens-in-end-stage-lung-diseases
#11
JOURNAL ARTICLE
Laura Bergantini, Miriana d'Alessandro, Dalila Cavallaro, Elena Pordon, Lucia Cassai, Sara Gangi, Federica Meloni, Francesca Montagnani, Piero Paladini, Rosa Metella Refini, Luca Luzzi, Antonella Fossi, Elena Bargagli, David Bennett
INTRODUCTION: Lung transplant (LTX) patients are at high risk of cytomegalovirus (CMV) infection, which is often associated with high mortality and morbidity. Reactivation of CMV causes cell injury due to the cytopathic effect of viral replication and triggering of T cell immunity. The aim of this study was to compare expression of Immune checkpoints (ICs) (PD-1, CTLA-4, LAG-3 and TIGIT) in CD4, CD8 and CD56 and activation markers CD137, CD154 and CD69 of end-stage patients awaiting lung transplant...
December 27, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36598149/pretransplant-serum-levels-of-endothelial-cell-activation-markers-are-associated-with-graft-loss-and-mortality-after-kidney-transplantation
#12
JOURNAL ARTICLE
Kit Peiter Lund, Frank Eriksson, Bente Klarlund Pedersen, Søren Schwartz Sørensen, Helle Bruunsgaard
Long-term allograft survival remains a challenge in kidney transplantation. In this study, we aimed to identify biomarkers for potentially modifiable pathways involved in the outcome of kidney transplantation. We tested the hypothesis that a pre-existing systemic environment with endothelial cell activation in the recipient is associated with the outcome after kidney transplantation. In a retrospective study cohort of 611 kidney transplanted patients, we investigated associations between serum levels of soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) before transplantation and delayed graft function, acute rejection, graft loss and mortality after transplantation...
January 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36533838/remembering-nils-lycke-1954-2022
#13
JOURNAL ARTICLE
Mary Jo Wick, Ulf Yrlid
No abstract text is available yet for this article.
January 2023: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36541819/severe-covid-19-patients-show-a-dysregulation-of-the-nlrp3-inflammasome-in-circulating-neutrophils
#14
JOURNAL ARTICLE
Vinicius N C Leal, Milena M S Andrade, Franciane M E Teixeira, Raylane A G Cambui, Mariela E G V Roa, Letícia G Marra, Suemy M Yamada, Ricardo W Alberca, Sarah C Gozzi-Silva, Tatiana M Yendo, Lucas C Netto, Alberto J S Duarte, Maria N Sato, Alessandra Pontillo
SARS-CoV-2 triggers inflammasome-dependent release of pro-inflammatory cytokine IL-1β and pyroptosis, therefore contributes to the huge inflammatory response observed in severe COVID-19 patients. Less is known about the engagement of inflammasome in neutrophils, main players in tissue injury and severe infection. We studied the activation of the inflammasome in neutrophils from severe COVID-19 patients and assessed its consequence in term of cells contribution to disease pathogenesis. We demonstrated that NLRP3 inflammasome is dramatically activated in neutrophils from severe COVID-19 patients, and that the specific inhibition of NLRP3 reverts neutrophils' activation...
December 21, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36541113/a-novel-dock2-variant-in-siblings-with-severe-combined-immunodeficiency-scid
#15
LETTER
Maria Anna Bruusgaard-Mouritsen, Tania Masmas, Line Borgwardt, Lusine Nazaryan-Petersen, Carsten Heilmann, Hans O Madsen, Hanne Vibeke Marquart
No abstract text is available yet for this article.
December 21, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36541098/revisiting-cell-culture-media-for-immune-cells-has-d-glucose-been-necessary
#16
LETTER
Zejin Liu, Hang Wu, Yijie Zhang, Junpeng Wang
No abstract text is available yet for this article.
December 21, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36537046/galectin-3-interacts-with-pd-1-and-counteracts-the-pd-1-pathway-driven-regulation-of-t-cell-and-osteoclast-activity-in-rheumatoid-arthritis
#17
JOURNAL ARTICLE
Kathrine Pedersen, Morten Aagaard Nielsen, Kristian Juul-Madsen, Malene Hvid, Bent Deleuran, Stinne Ravn Greisen
OBJECTIVE: Rheumatoid arthritis (RA) is an autoimmune disease characterized by joint inflammation and bone erosions. The glycosylated programmed death-1 (PD-1) receptor plays an important role in regulating immune responses and maintaining tolerance. In this study, we focus on two features observed in RA: impaired PD-1 signaling, and Galectin-3 (Gal-3) upregulation. We hypothesize that Gal-3 binds PD-1 and PD-1 ligands, potentially contributing to impaired PD-1 signaling. METHODS: PD-1 and Gal-3 levels in RA synovial fluid (SF) and plasma were evaluated by ELISA...
December 19, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36519562/targeted-suppression-of-dpt-specific-b-cells-in-humanized-rag2-%C3%AE-c-mouse-model-of-hdm-allergy
#18
JOURNAL ARTICLE
Nikola Ralchev Ralchev, Nikola Kerekov, Nikolina Mihaylova, Mariann Kremlitzka, Diana Hristova, Julian Dzhorev, Anna Erdei, Andrey Ivanov Tchorbanov
Der p 1 is one of the major allergenic molecules of Dermatophagoides pteronyssinus, causing house dust mite (HDM) allergy. The pathological B cells produce allergen-specific IgE antibodies that mediate the hypersensitivity reaction, therefore the selective elimination of these B cells is a legitimate therapeutic goal in allergy. Chimeric molecule Dp51-72 able to cross-link B cell inhibitory complement receptor type 1 and BCR on Der p 1-specific B cells was constructed. The signaling capabilities of this molecule has been tested on human B cells...
December 15, 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36950896/impact-of-monocyte-related-modulators-and-kidney-function-on-mortality-in-hospitalized-patients-with-covid-19
#19
JOURNAL ARTICLE
Senka Sendic, Ladan Mansouri, Sebastian Havervall, Charlotte Thålin, Joachim Lundahl, Stefan H Jacobson
Patients with chronic kidney disease (CKD) are at high risk of severe complications from COVID-19 and functional monocyte disturbances have been implicated to play a role. Our objective was to analyse the association between kidney function and monocyte modulatory factors, with risk of mortality in patients with COVID-19. Hospitalized patients with COVID-19 (n = 110) were included and in-hospital mortality was analysed with unadjusted and adjusted multiple logistic regression analysis. Plasma levels of monocyte chemoattractant factors (MIP-1α, MCP-1, IL-6) and a monocyte immune modulator (sCD14) were analysed and correlated to kidney function and risk of mortality...
November 2022: Scandinavian Journal of Immunology
https://read.qxmd.com/read/36808635/a-single-center-study-points-to-diverse-features-and-outcome-in-patients-with-hyperimmunoglobulin-m-syndrome-and-class-switch-recombination-defects
#20
JOURNAL ARTICLE
Ayşegül Akarsu, Sevil Halaçlı, Çağman Tan, Barış Kuşkonmaz, Alphan Küpesiz, Duygu Çetinkaya, Özden Sanal, İlhan Tezcan, Deniz Çağdaş
Isotype class-switch recombination (CSR), somatic hypermutation (SHM), B cell signalling and DNA repair mechanisms defects are responsible for high IgM. The hyperimmunoglobulin M (HIGM) phenotype and CSR-related defects are now classified under primary antibody defects, combined immunodeficiencies or syndromic immunodeficiencies groups. The aim of the study is to evaluate the diverse phenotypic/genotypic/laboratory characteristics and outcome of patients with CSR defects and HIGM-related defects. We enrolled 50 patients...
November 2022: Scandinavian Journal of Immunology
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