Semaphorin 3A (Sema3A), originally identified as a potent growth cone collapsing factor in developing sensory neurons, is now recognized as a key player in immune, cardiovascular, bone metabolism and neurological systems. Here we established an anti-Sema3A monoclonal antibody that neutralizes the effects of Sema3A both in vitro and in vivo. The anti-Sema3A neutralization chick IgM antibodies were screened by combining an autonomously diversifying library selection system and an in vitro growth cone collapse assay. We further developed function-blocking chick-mouse chimeric and humanized anti-Sema3A antibodies. We found that our anti-Sema3A antibodies were effective for improving the survival rate in lipopolysaccharide-induced sepsis in mice. Our antibody is a potential therapeutic agent that may prevent the onset of or alleviate symptoms of human diseases associated with Sema3A.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/intimm/dxv014 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Clinical remission in patients with severe eosinophilic asthma treated with mepolizumab: A analysis of RELIght study.
Allergy Asthma Proc
January 2025
2nd Respiratory Department, Attikon University Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece.
Remission of asthma can occur as part of the natural history of the disease; however, the use of biologics can result in disease remission in some patients. In this post hoc analysis of the RELIght study, we aimed to evaluate clinical remission in real life among patients treated with mepolizumab, to detect possible differences between "remitters" and "nonremitters," and to evaluate possible predictors of remission. Clinical remission was defined as the absence of asthma exacerbations, discontinuation of oral corticosteroids (OCS), achievement of asthma control (Asthma Control Test [ACT] ≥ 20), and stable or improved lung function.
View Article and Find Full Text PDFAtopic dermatitis (AD), a common chronic inflammatory skin disorder is characterized by a complex pathology with skin-barrier abnormalities, immune dysregulation, and microbial dysbiosis. Patients' quality of life is often negatively impacted by persistent pruritus, sleep disturbance, and recurrent skin infections. In addition, patients may have comorbid atopic as well as nonatopic diseases.
View Article and Find Full Text PDFSuperior persistence of ustekinumab compared to anti-TNF in vedolizumab-experienced inflammatory bowel diseases patients: a real-world cohort study.
BMC Gastroenterol
December 2024
Department of Gastroenterology and Hepatology, Linkou Branch, Chang Gung Memorial Hospital, 5, Fu-Hsin Street, Guei-Shan District, Taoyuan, 33305, Taiwan.
Background/aims: The increasing use of biologic therapies for moderate to severe inflammatory bowel disease (IBD) highlights the importance of optimal treatment sequencing, particularly after vedolizumab (VDZ) exposure. Studies comparing the effectiveness of ustekinumab (UST) and antitumor necrosis factor (anti-TNF) agents post-VDZ are limited.
Methods: This retrospective study analyzed VDZ-experienced IBD patients treated with UST or anti-TNF (adalimumab and infliximab) from May 2019 to January 2024.
DS2 designer pre-fusion F vaccine induces strong and protective antibody response against RSV infection.
NPJ Vaccines
December 2024
Comprehensive AIDS Research Center, Pandemic Research Alliance Unit, Center for Infection Biology, School of Basic Medical Sciences, Tsinghua University, 100084, Beijing, China.
DS-Cav1, SC-TM, and DS2 are distinct designer pre-fusion F proteins (pre-F) of respiratory syncytial virus (RSV) developed for vaccines. However, their immunogenicity has not been directly compared. In this study, we generated three recombinant vaccines using the chimpanzee adenovirus vector AdC68 to express DS-Cav1, SC-TM, and DS2.
View Article and Find Full Text PDFAcute communication between microglia and non-parenchymal immune cells in the anti-Aβ antibody injected cortex.
J Neurosci
December 2024
Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis IN, USA
Anti-Aβ immunotherapy use to treat Alzheimer's disease is on the rise. While anti-Aβ antibodies provide hope in targeting Aβ plaques in the brain there still remains a lack of understanding regarding the cellular responses to these antibodies in the brain. In this study we sought to identify acute effects of anti-Aβ antibody on immune responses.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!