Antibodies最新文献

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Seroprevalence of IgG and IgE Antibodies Against Anisakis in the Presumably Healthy Population of the Canary Islands. 加那利群岛推定健康人群中抗异尖线虫IgG和IgE抗体的血清阳性率
IF 3
Antibodies Pub Date : 2025-07-17 DOI: 10.3390/antib14030060
Eligia González-Rodríguez, Marta Rodero, J Alberto Montoya-Alonso, Kevin M Santana-Hernández, Myriam R Ventura, Carmen Cuéllar, Eligia Rodríguez-Ponce
{"title":"Seroprevalence of IgG and IgE Antibodies Against <i>Anisakis</i> in the Presumably Healthy Population of the Canary Islands.","authors":"Eligia González-Rodríguez, Marta Rodero, J Alberto Montoya-Alonso, Kevin M Santana-Hernández, Myriam R Ventura, Carmen Cuéllar, Eligia Rodríguez-Ponce","doi":"10.3390/antib14030060","DOIUrl":"https://doi.org/10.3390/antib14030060","url":null,"abstract":"<p><p>Food-borne zoonoses, particularly anisakiosis caused by <i>Anisakis</i> spp., are an increasing public health concern due to the rising consumption of raw fish. Anisakiosis results from the ingestion of third-stage larvae of Anisakidae nematodes, with the genus <i>Anisakis</i> re-sponsible for approximately 97% of human cases. While regulatory protocols exist to minimize infection risk in commercial settings, domestic food preparation often lacks such safeguards, creating a gap in public health protection. In the Canary Islands, a major Spanish aquaculture region, farmed fish exhibit a low <i>Anisakis</i> prevalence, suggesting minimal risk from aquaculture products. In contrast, wild-caught fish demonstrate varia-ble parasitism, with recent studies reporting a 25% prevalence among commercial species.</p><p><strong>Methods: </strong>This study assessed <i>Anisakis</i> exposure in the Canary Islands by measuring specific IgG and IgE antibodies in 1043 serum samples collected from all seven islands between March 2014 and October 2015. ELISA assays detected anti-<i>Anisakis</i> antibodies, and the results were analyzed by age, sex, island, and isoclimatic zone.</p><p><strong>Results: </strong>Overall, 16.9% of samples were IgG-positive and 6.8% were IgE-positive. Seroprevalence was significantly higher in indi-viduals aged 60 years and above. Geographic heterogeneity was notable: La Palma had the highest IgG seroprevalence (35.3%), while El Hierro showed the highest IgE prevalence (16.3%). Temperate isoclimatic zones exhibited higher antibody prevalence than dry zones. These findings indicate variable <i>Anisakis</i> exposure across the Canary Islands, likely influenced by environmental and behavioral factors.</p><p><strong>Conclusions: </strong>The results highlight the need for targeted public health interventions to reduce the anisakiosis risk, particularly in regions and populations with elevated exposure.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Loss of IgA and IgM Compromises Broad Neutralization of Structurally Divergent SARS-CoV-2 Variants. IgA和IgM的缺失损害了结构分化的SARS-CoV-2变体的广泛中和。
IF 3
Antibodies Pub Date : 2025-07-12 DOI: 10.3390/antib14030059
Yalcin Pisil, Tomoyuki Miura, Kiyoki Ito, Yoshihiro Watanabe
{"title":"Loss of IgA and IgM Compromises Broad Neutralization of Structurally Divergent SARS-CoV-2 Variants.","authors":"Yalcin Pisil, Tomoyuki Miura, Kiyoki Ito, Yoshihiro Watanabe","doi":"10.3390/antib14030059","DOIUrl":"https://doi.org/10.3390/antib14030059","url":null,"abstract":"<p><p><b>Objectives:</b> The durability and breadth of neutralizing antibodies following SARS-CoV-2 mRNA vaccination remain incompletely understood. This study aimed to investigate how longitudinal changes in antibody isotype composition impact neutralization against structurally diverse SARS-CoV-2 variants. <b>Methods:</b> After screening a broader cohort of mRNA-vaccinated sera, time-matched samples collected one month (1 mpv) and three months post-vaccination (3 mpv) were selected for detailed analysis. Neutralization assays against live virus variants, enzyme-linked immunosorbent assays (ELISA), and immunogold electron microscopy were performed to assess antibody titers, isotype levels, and virion morphology. <b>Results:</b> Neutralization titers declined markedly at 3 mpv, particularly against immune-evasive variants. Notably, the Lambda variant showed disproportionately high sensitivity to early-phase sera despite its divergence from the vaccine strain. Antibody isotyping showed that IgA and IgM decreased over time, while IgG levels were relatively more sustained. Electron microscopy revealed broader virion size heterogeneity in Lambda (50-200 nm) compared to Wuhan (80-120 nm), potentially enhancing multivalent antibody engagement. Consistently, ELISA under reduced spike density conditions showed that IgA and IgM retained stronger binding than IgG. <b>Conclusions:</b> These findings indicate that the decline of IgA and IgM compromises neutralization breadth, especially against structurally divergent variants such as Lambda. Sustaining dynamic multivalent isotype responses that adapt to diverse spike morphologies may be critical for broad cross-variant immunity.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Immunotherapy in GI Cancers: Lessons from Key Trials and Future Clinical Applications. 免疫治疗在胃肠道肿瘤:从关键试验和未来临床应用的教训。
IF 3
Antibodies Pub Date : 2025-07-11 DOI: 10.3390/antib14030058
Supriya Peshin, Faizan Bashir, Naga Anvesh Kodali, Adit Dharia, Sajida Zaiter, Sakshi Singal, Nagaishwarya Moka
{"title":"Immunotherapy in GI Cancers: Lessons from Key Trials and Future Clinical Applications.","authors":"Supriya Peshin, Faizan Bashir, Naga Anvesh Kodali, Adit Dharia, Sajida Zaiter, Sakshi Singal, Nagaishwarya Moka","doi":"10.3390/antib14030058","DOIUrl":"https://doi.org/10.3390/antib14030058","url":null,"abstract":"<p><p>Immunotherapy has emerged as a transformative approach in gastrointestinal (GI) cancers, addressing historically poor survival rates in advanced-stage disease. Immune checkpoint inhibitors (ICIs) targeting the PD-1/PD-L1 axis demonstrate remarkable efficacy in colorectal cancer with deficient mismatch repair (dMMR) or high microsatellite instability (MSI-H), exemplified by trials like NICHE-2 achieving exceptional pathological response rates. However, significant limitations persist, including resistance in some dMMR/MSI-H tumors, minimal efficacy in proficient mismatch repair (pMMR) tumors, and low overall response rates across most GI malignancies due to tumor heterogeneity and immune evasion mechanisms. Predictive biomarkers such as tumor mutational burden (TMB) and PD-L1 expression are crucial for optimizing patient selection, while hypermutated pMMR tumors with POLE mutations represent emerging therapeutic opportunities. In pancreatic adenocarcinoma, where survival remains dismal, combination strategies with chemotherapy and novel approaches like cancer vaccines show promise but lack transformative breakthroughs. Esophagogastric cancers benefit from ICIs combined with chemotherapy, particularly in MSI-H and HER2-positive tumors, while hepatocellular carcinoma has achieved significant progress with combinations like atezolizumab-bevacizumab and durvalumab-tremelimumab surpassing traditional therapies. Biliary tract cancers show modest improvements with durvalumab-chemotherapy combinations. Despite these advances, immunotherapy faces substantial challenges including immune-related adverse events, acquired resistance through cancer immunoediting, and the need for biomarker-driven approaches to overcome tumor microenvironment barriers. This review discusses key clinical trials, therapeutic progress, and emerging modalities including CAR T-cell therapies and combination strategies, emphasizing the critical need to address resistance mechanisms and refine precision medicine approaches to fully realize immunotherapy's potential in GI malignancies.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Isolation of a Monoclonal Human scFv Against Cytomegalovirus pp71 Antigen Using Yeast Display. 利用酵母展示技术分离人抗巨细胞病毒pp71抗原单克隆抗体。
IF 3
Antibodies Pub Date : 2025-07-10 DOI: 10.3390/antib14030057
Kazuhisa Aoki, Rikio Yabe, Sayaka Ono, Mayumi Saeki, Yuri Tanno, Hidetaka Tanno
{"title":"Isolation of a Monoclonal Human scFv Against Cytomegalovirus pp71 Antigen Using Yeast Display.","authors":"Kazuhisa Aoki, Rikio Yabe, Sayaka Ono, Mayumi Saeki, Yuri Tanno, Hidetaka Tanno","doi":"10.3390/antib14030057","DOIUrl":"https://doi.org/10.3390/antib14030057","url":null,"abstract":"<p><strong>Background: </strong>Human cytomegalovirus (CMV) is a major pathogen that poses significant risks to immunocompromised individuals and neonates. The tegument protein pp71, encoded by the UL82 gene, plays a pivotal role in initiating viral lytic replication and evading host immune responses. Despite its clinical relevance, standardized monoclonal antibodies (mAbs) for pp71 remain limited, prompting the need to expand the available repertoire of antibodies targeting this critical protein.</p><p><strong>Methods: </strong>In this study, we constructed a diverse human single-chain variable fragment (scFv) library using RNA derived from the B cells of four healthy donors. The library was expressed in <i>Saccharomyces cerevisiae</i>, and iterative rounds of magnetic-activated cell sorting (MACS) were performed against recombinant pp71. Clonal enrichment was monitored using flow cytometry.</p><p><strong>Results: </strong>Among the isolated clones, one designated ID2 exhibited high sensitivity and specificity for pp71, as demonstrated by flow cytometry, immunofluorescence, an enzyme-linked immunosorbent assay (ELISA), and biolayer interferometry (BLI).</p><p><strong>Conclusions: </strong>Collectively, these findings establish a novel pp71-specific mAb and underscore the utility of yeast surface display combined with MACS for expanding the antibody toolkit available for CMV research and diagnostics.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diagnosis of Systemic Rheumatic Disease Using the Connective Tissue Disease Screen. 使用结缔组织疾病筛查诊断系统性风湿病。
IF 3
Antibodies Pub Date : 2025-07-02 DOI: 10.3390/antib14030056
Abeline Kapuczinski, Dorian Parisis, Nour Kassab, Julie Smet, Muhammad Soyfoo
{"title":"Diagnosis of Systemic Rheumatic Disease Using the Connective Tissue Disease Screen.","authors":"Abeline Kapuczinski, Dorian Parisis, Nour Kassab, Julie Smet, Muhammad Soyfoo","doi":"10.3390/antib14030056","DOIUrl":"https://doi.org/10.3390/antib14030056","url":null,"abstract":"<p><p>Connective tissue diseases (CTDs) comprise a heterogeneous group of autoimmune conditions characterized by diverse clinical manifestations and autoantibody profiles, posing significant diagnostic challenges. This systematic review and meta-analysis evaluated the diagnostic performance of automated connective tissue disease screening assays, commonly known as CTD screens, in diagnosing systemic rheumatic diseases. Eleven studies, including cohort and case-control designs, involving a total of 2384 CTD-positive patients, 8972 controls without CTD, and 679 healthy blood donors, were analyzed. The results demonstrated a pooled sensitivity of 79.36% and specificity of 90.79% for Elia<sup>®</sup> CTD-screen, and a sensitivity of 87.23% and specificity of 83.56% for QuantaFlash<sup>®</sup> CTD-screen. These tests exhibited varied sensitivity across individual CTDs, with excellent specificity for distinguishing CTD patients from healthy controls. Despite their utility, CTD screens should not be solely relied upon for diagnosis due to limitations in positive predictive value, particularly in low-prevalence populations. Clinical context and expert rheumatological evaluation remain indispensable. Optimizing the use of CTD screens can enhance diagnostic efficiency, reduce unnecessary testing, and mitigate patient anxiety and healthcare costs. Further research focusing on integrating these assays with clinical evaluation is recommended.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Teprotumumab for Thyroid Eye Disease: Mechanism, Clinical Efficacy, and Current Challenges. Teprotumumab治疗甲状腺眼病:机制、临床疗效和当前挑战
IF 3
Antibodies Pub Date : 2025-06-30 DOI: 10.3390/antib14030055
Yuan Zong, Shuang Qiu, Mingming Yang, Jing Zhang, Yaru Zou, Yuxin Jing, Kyoko Ohno-Matsui, Koju Kamoi
{"title":"Teprotumumab for Thyroid Eye Disease: Mechanism, Clinical Efficacy, and Current Challenges.","authors":"Yuan Zong, Shuang Qiu, Mingming Yang, Jing Zhang, Yaru Zou, Yuxin Jing, Kyoko Ohno-Matsui, Koju Kamoi","doi":"10.3390/antib14030055","DOIUrl":"https://doi.org/10.3390/antib14030055","url":null,"abstract":"<p><p>Thyroid eye disease (TED) is a complex autoimmune disorder characterized by orbital inflammation and tissue remodeling. Teprotumumab, a fully human monoclonal antibody targeting insulin-like growth factor-1 receptor (IGF-1R), represents a significant breakthrough in TED treatment. This review comprehensively analyzes the therapeutic role of teprotumumab in TED management. Mechanistically, teprotumumab inhibits the IGF-1R/TSHR signaling complex, thereby reducing orbital fibroblast differentiation and inflammatory responses. Phase II and III clinical trials have demonstrated its remarkable efficacy in reducing proptosis and improving clinical activity scores, with the benefits extending to both active and chronic TED cases. Real-world studies have validated these findings further and expanded its potential applications to various clinical scenarios, including dysthyroid optic neuropathy and steroid-resistant cases. However, several challenges remain. These include treatment-related adverse effects such as hyperglycemia and hearing impairment, with emerging evidence suggesting ethnic variations in susceptibility. The high cost of treatment poses significant accessibility barriers, while limited long-term follow-up data and potential disease recurrence necessitate further investigation. This review synthesizes the current evidence to inform clinical decision-making and highlights areas requiring additional research to optimize teprotumumab's therapeutic application in TED management.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Survival Outcomes and Prognostic Factors in Rheumatoid Arthritis Patients Receiving Biologic or Targeted Synthetic Therapy: Real-World Data. 类风湿关节炎患者接受生物或靶向合成治疗的生存结局和预后因素:真实世界数据
IF 3
Antibodies Pub Date : 2025-06-30 DOI: 10.3390/antib14030054
Zhaklin Apostolova, Tanya Shivacheva, Tsvetoslav Georgiev
{"title":"Survival Outcomes and Prognostic Factors in Rheumatoid Arthritis Patients Receiving Biologic or Targeted Synthetic Therapy: Real-World Data.","authors":"Zhaklin Apostolova, Tanya Shivacheva, Tsvetoslav Georgiev","doi":"10.3390/antib14030054","DOIUrl":"https://doi.org/10.3390/antib14030054","url":null,"abstract":"<p><strong>Objectives: </strong>The present study aimed to evaluate the long-term survival of patients with rheumatoid arthritis (RA) receiving biologic or targeted synthetic disease-modifying antirheumatic drugs (b/tsDMARDs) in a real-world setting, and to identify key prognostic factors influencing mortality within this cohort.</p><p><strong>Methods: </strong>This retrospective, observational cohort study analyzed 165 patients with confirmed RA who were on b/tsDMARD treatment for at least six months as of June 2017. Patient data, including demographics, disease duration, prior therapeutic regimens, and global functional status were extracted from medical records to collect data covering a seven-year follow-up period, extending from June 2017 to December 2024. Corticosteroid use was defined as continuous systemic intake during the RA activity analysis period. Survival outcomes were analyzed using Kaplan-Meier methods and multivariate Cox proportional hazards models to identify independent predictors of mortality.</p><p><strong>Results: </strong>Over a mean follow-up of 9.4 years, the mortality rate was 13.5 deaths per 1000 treatment-years, with an overall survival rate of 87.3%. Advanced functional disability and prolonged corticosteroid use were independently associated with higher mortality risk. In subgroup analyses, chronic kidney disease significantly increased mortality among patients on TNF inhibitors. In contrast, patients who remained on their initial anti-IL6 therapy had lower mortality, though this may reflect survivor bias.</p><p><strong>Conclusions: </strong>This study highlights the importance of long-term b/tsDMARD intervention in RA patients, with observed low mortality and high survival rates. Subgroup findings suggest the importance of comorbidity management in TNFi users and therapeutic stability in anti-IL6 users.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fragment-Based Immune Cell Engager Antibodies in Treatment of Cancer, Infectious and Autoimmune Diseases: Lessons and Insights from Clinical and Translational Studies. 基于片段的免疫细胞接合抗体治疗癌症、感染性和自身免疫性疾病:来自临床和转化研究的经验教训和见解。
IF 3
Antibodies Pub Date : 2025-06-24 DOI: 10.3390/antib14030052
Ge Yang, Mohammad Massumi
{"title":"Fragment-Based Immune Cell Engager Antibodies in Treatment of Cancer, Infectious and Autoimmune Diseases: Lessons and Insights from Clinical and Translational Studies.","authors":"Ge Yang, Mohammad Massumi","doi":"10.3390/antib14030052","DOIUrl":"https://doi.org/10.3390/antib14030052","url":null,"abstract":"<p><p>Since the advent of recombinant DNA technologies and leading up to the clinical approval of T cell engager blinatumomab, the modular design of therapeutic antibodies has enabled the fusion of antibody fragments with proteins of various functionalities. This has resulted in an expansive array of possible mechanisms of action and has given birth to fragment-based antibodies (fbAbs) with immune cell engager modalities. In searchable databases, the preclinical development of these antibodies has shown promise; however, clinical outcomes and restructuring efforts involving these agents have produced mixed results and uncertainties. Amid budgetary cuts in both academia and industry, critical planning and evaluation of drug R&D would be more essential than ever before. While many reviews have provided outstanding summaries of preclinical phase fbAbs and cataloged relevant clinical trials, to date, very few of the articles in searchable databases have comprehensively reviewed the details of clinical outcomes along with the underlying reasons or potential explanations for the success and failures of these fbAb drug products. To fill the gap, in this review, we seek to provide the readers with clinically driven insights, accompanied by translational and mechanistic studies, on the current landscape of fragment-based immune cell engager antibodies in treating cancer, infectious, and autoimmune diseases.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Light-Chain Variants on the Expression of Therapeutic Monoclonal Antibodies in HEK293 and CHO Cells. 轻链变异对HEK293和CHO细胞治疗性单克隆抗体表达的影响
IF 3
Antibodies Pub Date : 2025-06-24 DOI: 10.3390/antib14030053
Alexander Veber, Dennis Lenau, Polyniki Gkragkopoulou, David Kornblüh Bauer, Ingo Focken, Wulf Dirk Leuschner, Christian Beil, Sandra Weil, Ercole Rao, Thomas Langer
{"title":"Impact of Light-Chain Variants on the Expression of Therapeutic Monoclonal Antibodies in HEK293 and CHO Cells.","authors":"Alexander Veber, Dennis Lenau, Polyniki Gkragkopoulou, David Kornblüh Bauer, Ingo Focken, Wulf Dirk Leuschner, Christian Beil, Sandra Weil, Ercole Rao, Thomas Langer","doi":"10.3390/antib14030053","DOIUrl":"https://doi.org/10.3390/antib14030053","url":null,"abstract":"<p><p>Recombinantly produced monoclonal antibodies (mabs) belong to the fastest growing class of biotherapeutics. In humans, antibodies are classified into five different classes: IgA, IgD, IgE, IgG and IgM. Most of the therapeutic mabs used in the clinic belong to the IgG class, albeit other antibody classes, e.g., IgM, have been evaluated in clinical stages. Antibodies are composed of heavy chains paired with a light chain. In IgM and IgA, an additional chain, the J-chain, is present. Two types of light chains exist in humans: the κ-light chain and the λ-light chain. The κ-light chain predominates in humans and is used in the vast majority of therapeutic IgG. The reason for the preference of the κ-light chain in humans is not known. Our study investigates whether light-chain selection influences the productivity of the clinically validated mabs adalimumab and trastuzumab. Both mabs were expressed as IgG and IgM with a κ- or a λ-light chain in HEK293 cells. Besides comparing the expression levels of the different mabs, we also evaluated whether the passage number of the cell line has an impact on product yield. In addition, the expressions of adalimumab, trastuzumab, an anti-CD38 and an anti-PD-L1-antibody were analyzed in HEK293 and CHO cells when both the κ- and λ-light chains are present. In summary, IgG outperformed IgM variants in expression efficacy, while light-chain selection had minimal impact on the overall expression levels. The yields of all mab variants were higher in fresh cells, despite cell cultures with a high cell passage number having higher cell densities and cell numbers at the time of harvest. The incorporation of a particular light chain occurred at similar rates in HEK293 and CHO cells.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 3","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Circulating Antibodies Against DSG1 and DSG3 in Patients with Oral Lichen Planus: A Scoping Review. 口腔扁平苔藓患者的DSG1和DSG3循环抗体:范围综述
IF 3
Antibodies Pub Date : 2025-06-18 DOI: 10.3390/antib14020051
Domenico De Falco, Francesca Iaquinta, Doriana Pedone, Alberta Lucchese, Dario Di Stasio, Massimo Petruzzi
{"title":"Circulating Antibodies Against DSG1 and DSG3 in Patients with Oral Lichen Planus: A Scoping Review.","authors":"Domenico De Falco, Francesca Iaquinta, Doriana Pedone, Alberta Lucchese, Dario Di Stasio, Massimo Petruzzi","doi":"10.3390/antib14020051","DOIUrl":"10.3390/antib14020051","url":null,"abstract":"<p><p>Oral Lichen Planus (OLP) is a chronic autoimmune disease with potential overlap with Pemphigus Vulgaris (PV), particularly in erosive forms. Desmoglein 1 and 3 are transmembrane glycoproteins of desmosomes, typically involved in PV. This scoping review aims to evaluate the presence and potential pathogenetic role of anti-desmoglein 1 (Dsg1) and anti-desmoglein 3 (Dsg3) antibodies in OLP. A literature search was conducted on MEDLINE/PubMed, Ovid, and Scopus up to April 2025. Human studies reporting OLP patients with anti-Dsg1 and/or anti-Dsg3 antibodies were included. Data from 11 studies were analyzed by diagnosis, age/sex, oral site involvement, immunofluorescence, and ELISA testing. Erosive OLP was most frequently associated with anti-Dsg1/Dsg3 positivity, mainly in women aged 40-60. Immunofluorescence was positive in some cases, while the ELISA test almost consistently detected anti-Dsg1 and Dsg3 antibodies. However, in many instances, antibody titers did not reach the threshold value, despite the presence being detectable. This finding suggests that anti-Dsg1/Dsg3 antibodies may represent epiphenomena of chronic inflammation in erosive OLP, indicating an immune-serological overlap with PV but lacking direct pathogenicity. Furthermore, the role of Dsg3 in oral squamous cell carcinoma, by promoting enzymes that degrade the extracellular matrix and enhance tumor invasiveness, highlights the complex functions of desmogleins beyond autoimmunity.</p>","PeriodicalId":8188,"journal":{"name":"Antibodies","volume":"14 2","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12189673/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144482967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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