Immune NetworkPub Date : 2025-02-11eCollection Date: 2025-04-01DOI: 10.4110/in.2025.25.e7
Mengyuan Xin, Antuo Wang, Minghao Ji, Jingru Wu, Bin Jiang, Mo Shi, Liang Song, Zhongwei Xin
{"title":"Molecular Biology and Functions of T Follicular Helper Cells in Cancer and Immunotherapy.","authors":"Mengyuan Xin, Antuo Wang, Minghao Ji, Jingru Wu, Bin Jiang, Mo Shi, Liang Song, Zhongwei Xin","doi":"10.4110/in.2025.25.e7","DOIUrl":"https://doi.org/10.4110/in.2025.25.e7","url":null,"abstract":"<p><p>T follicular helper (Tfh) cells are integral to the germinal center (GC) response and the development of potent humoral immunity. By priming B cells, Tfh cells can initiate both extrafollicular and GC-dependent Ab responses. The dynamic physical interactions between Tfh and B cells constitute the primary platform for Tfh cells to provide essential \"help\" factors to B cells, as well as for reciprocal signaling from B cells to sustain the helper state of Tfh cells. In recent years, significant advancements have been made in understanding the diverse roles of Tfh cells across various diseases, particularly in cancer. Notably, beyond the classical GC-Tfh cells, it is increasingly recognized that the Tfh cell phenotype is highly heterogeneous and dynamic, which adds complexity to their roles in disease contexts. This review aims to encapsulate progress in Tfh cell biology, with a focus on their role in cancer and immunotherapy.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 2","pages":"e7"},"PeriodicalIF":4.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12056291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144017728","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 : 2025-02-11eCollection Date: 2025-02-01DOI: 10.4110/in.2025.25.e6
Naeyoon Jang, Il-Kyu Kim, Dawoon Jung, Yeonseok Chung, Yun Pyo Kang
{"title":"Regulation of Ferroptosis in Cancer and Immune Cells.","authors":"Naeyoon Jang, Il-Kyu Kim, Dawoon Jung, Yeonseok Chung, Yun Pyo Kang","doi":"10.4110/in.2025.25.e6","DOIUrl":"10.4110/in.2025.25.e6","url":null,"abstract":"<p><p>Ferroptosis, an iron-dependent form of regulated cell death, is driven by lipid peroxidation and shaped by metabolic and antioxidant pathways. In immune cells, ferroptosis susceptibility varies by cell types, lipid composition, and metabolic demands, influencing immune responses in cancer, infections, and autoimmune diseases. Therapeutically, targeting ferroptosis holds promise in cancer immunotherapy by enhancing antitumor immunity or inhibiting immunosuppressive cells. This review highlights the metabolic pathways underlying ferroptosis, its regulation in immune cells, its dual role in tumor progression and antitumor immunity, and its context-dependent therapeutic implications for optimizing cancer treatment.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 1","pages":"e6"},"PeriodicalIF":4.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11896659/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614838","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 : 2025-02-07eCollection Date: 2025-04-01DOI: 10.4110/in.2025.25.e5
Dae Hwan Kim, Ji Eun Yu, Dong Hun Lee, Min Ji Kim, Seong Hee Jeon, Jaesuk Yun, Dong Ju Son, Bongcheol Kim, Yoon Ji Yong, Young-Soo Lim, Tae Hun Kim, Azizi Mohammad Khalid, Sang-Bae Han, Yong Sun Lee, Jin Tae Hong
{"title":"Anti-arthritis Effect of Anti-chitinase-3-like 1 Antibody Through Inhibition of MMP3.","authors":"Dae Hwan Kim, Ji Eun Yu, Dong Hun Lee, Min Ji Kim, Seong Hee Jeon, Jaesuk Yun, Dong Ju Son, Bongcheol Kim, Yoon Ji Yong, Young-Soo Lim, Tae Hun Kim, Azizi Mohammad Khalid, Sang-Bae Han, Yong Sun Lee, Jin Tae Hong","doi":"10.4110/in.2025.25.e5","DOIUrl":"https://doi.org/10.4110/in.2025.25.e5","url":null,"abstract":"<p><p>Chitinase-3-like 1 (CHI3L1) is a key factor in regulating inflammatory processes and development of rheumatoid arthritis (RA) since is highly produced by synoviocytes and macrophages in the development RA. Collagen-induced arthritis (CIA) model is the most widely used because its pathogenesis is similar to human RA. Thus, we aimed to investigate if anti-CHI3L1 antibody could reduce RA development in the CIA model. To induce CIA, DBA1/J mice were immunized with a type II bovine collagen emulsion in complete Freund's adjuvant, and boosted type II bovine collagen. THP-1 and MH7A cells were used for pro-inflammation responses. Anti-CHI3L1 Ab treatment reduced the RA clinical score and paw thickness of mice. Inflammation-induced matrix metalloproteinase 3 (MMP3) expression was reduced by inhibiting CHI3L1, and MMP3 knockdown suppressed the expression of RA-related inflammatory cytokines in LPS-treated THP-1 and MH7A cells. Our findings suggest that anti-CHI3L1 Ab showed significant anti-arthritic effects by inhibiting MMP3 expression.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 2","pages":"e5"},"PeriodicalIF":4.3,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12056290/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998201","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 : 2025-02-07eCollection Date: 2025-02-01DOI: 10.4110/in.2025.25.e3
Jongho Ham, Wooseok Yang, Hye Young Kim
{"title":"Tissue-Specific Metabolic Reprogramming in Innate Lymphoid Cells and Its Impact on Disease.","authors":"Jongho Ham, Wooseok Yang, Hye Young Kim","doi":"10.4110/in.2025.25.e3","DOIUrl":"10.4110/in.2025.25.e3","url":null,"abstract":"<p><p>Recent advances have highlighted the crucial role of metabolic reprogramming in shaping the functions of innate lymphoid cells (ILCs), which are vital for tissue immunity and homeostasis. As tissue-resident cells, ILCs dynamically respond to local environmental cues, with tissue-derived metabolites such as short-chain fatty acids and amino acids directly modulating their effector functions. The metabolic states of ILC subsets-ILC1, ILC2, and ILC3-are closely linked to their ability to produce cytokines, sustain survival, and drive proliferation. This review provides a comprehensive analysis of how key metabolic pathways, including glycolysis, oxidative phosphorylation, and fatty acid oxidation, influence ILC activation and function. Furthermore, we explore the complex interactions between these metabolic pathways and tissue-specific metabolites, which can shape ILC-mediated immune responses in health and disease. Understanding these interactions reveals new insights into the pathogenesis of conditions such as asthma, inflammatory bowel disease, and cancer. A deeper understanding of these mechanisms may not only advance our knowledge of disease pathogenesis but also lead to the development of novel therapeutic strategies targeting metabolic pathways in ILCs to treat tissue-specific immune disorders.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 1","pages":"e3"},"PeriodicalIF":4.3,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11896661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614805","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 : 2025-02-07eCollection Date: 2025-04-01DOI: 10.4110/in.2025.25.e4
A-Reum Kim, June-Young Koh, Min-Seok Rha, Jae Hyung Jung, Jae-Hoon Ko, Hee Kyoung Choi, Ji Hoon Jeon, Hyeri Seok, Dae Won Park, Kyong Ran Peck, Jun Yong Choi, Su-Hyung Park, Won Suk Choi, Hye Won Jeong, Eui-Cheol Shin
{"title":"Patients With Mild COVID-19 Exhibit Low Functional Avidity of SARS-CoV-2 Membrane Protein-Reactive CD4<sup>+</sup> T Cells.","authors":"A-Reum Kim, June-Young Koh, Min-Seok Rha, Jae Hyung Jung, Jae-Hoon Ko, Hee Kyoung Choi, Ji Hoon Jeon, Hyeri Seok, Dae Won Park, Kyong Ran Peck, Jun Yong Choi, Su-Hyung Park, Won Suk Choi, Hye Won Jeong, Eui-Cheol Shin","doi":"10.4110/in.2025.25.e4","DOIUrl":"https://doi.org/10.4110/in.2025.25.e4","url":null,"abstract":"<p><p>Herein, we found that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-unexposed individuals exhibited an increased frequency of CD4<sup>+</sup> T cells against SARS-CoV-2 membrane (M) protein, suggesting that SARS-CoV-2 M-reactive cells may be primed by previous infection with common cold coronaviruses (CCCoVs). We confirmed that CCCoV M-reactive CD4<sup>+</sup> T cells cross-recognize SARS-CoV-2 M in unexposed individuals. Among coronavirus disease 2019 (COVID-19) convalescents and unexposed individuals, SARS-CoV-2 M-reactive CD4<sup>+</sup> T cells exhibited significantly lower functional avidity than CD4<sup>+</sup> T cells reactive to other viruses. Importantly, convalescents from mild COVID-19 had SARS-CoV-2 M-reactive CD4<sup>+</sup> T cells with significantly lower functional avidity than convalescents from severe COVID-19. The current data suggest that pre-existing CCCoV M-specific memory CD4<sup>+</sup> T cells may contribute to controlling SARS-CoV-2 infection by cross-reactivity, leading to mild disease but leaving memory cells with low functional avidity to SARS-CoV-2 M due to incomplete homology. These data provide indirect evidence that pre-existing cross-reactive CD4<sup>+</sup> T cells contribute to protection from severe COVID-19.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 2","pages":"e4"},"PeriodicalIF":4.3,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12056292/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144014143","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}
{"title":"Synovial Fluid as a Crucial Component of the Joint Microenvironment in Rheumatoid Arthritis.","authors":"Shukhrat Khudaiberdievich Ziyadullaev, Shavkat Shukhratovich Khudaiberdiev, Tamara Uktamovna Aripova, Salvatore Chirumbolo, Zaynitdin Saifitdinovich Kamalov, Geir Bjørklund, Jasur Alimdjanovich Rizaev, Eleonora Negmatovna Tashkenbaeva, Obid Abdurakhmanovich Khamidov, Usmon Bobonazarovich Gaffarov","doi":"10.4110/in.2025.25.e2","DOIUrl":"https://doi.org/10.4110/in.2025.25.e2","url":null,"abstract":"<p><p>Rheumatoid arthritis (RA) is a systemic autoimmune disease closely associated with synovial tissue proliferation, pannus formation in small joints such as the hands, wrists, and feet, cartilage destruction, and systemic complications such as pulmonary, cardiovascular, neurological, and skeletal muscle lesions, glucocorticoid-induced osteoporosis and infections. The importance of confirming the diagnosis and determining local activity is given to the study of synovial fluid. A deep understanding of the pathological process in the joint in RA, characterized by changes in autoreactive CD4+ T cells, B cells, macrophages, inflammatory cytokines, chemokines, and autoantibodies, has now been achieved, although much remains to be explored. This article provides an updated overview of the pathogenesis of RA, revealing even more therapeutic targets for the intra-articular pathological process.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 2","pages":"e2"},"PeriodicalIF":4.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12056296/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143993348","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 : 2025-02-05eCollection Date: 2025-04-01DOI: 10.4110/in.2025.25.e1
Myeong-Seong Seo, Jiyeon Baek, Myung-Shin Jeon
{"title":"Role of the Aryl Hydrocarbon Receptor in the Self-Renewal, Differentiation, and Immunomodulation of Adult Stem Cells.","authors":"Myeong-Seong Seo, Jiyeon Baek, Myung-Shin Jeon","doi":"10.4110/in.2025.25.e1","DOIUrl":"https://doi.org/10.4110/in.2025.25.e1","url":null,"abstract":"<p><p>Adult stem cells are a rare population of undifferentiated cells present in almost all body tissues. Depending on their location, stem cells can differentiate into various tissue types, primarily contributing to maintenance, repair, and immune system regulation. Stem cell therapies have significant potential in regenerative medicine and treatment of inflammatory diseases. However, many factors must be considered for successful clinical commercialization, including enhancing therapeutic potential, ensuring product differentiation, and optimizing the manufacturing process for large-scale production. The development of sophisticated regulatory mechanisms may enhance therapeutic applications. The aryl hydrocarbon receptor (AhR) is expressed in all adult stem cells, and its activation and function are tightly regulated. Understanding the role and regulation of AhR is crucial for developing effective stem cell therapies. This review examines the role of the AhR in regulating the fundamental characteristics of adult stem cells, which may contribute to advancing adult stem cell therapies.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"25 2","pages":"e1"},"PeriodicalIF":4.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12056294/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143977214","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 : 2024-12-26eCollection Date: 2024-12-01DOI: 10.4110/in.2024.24.e45
Ji Cheol Kim, Wonseok Hu, Mingyu Lee, Geon Ho Bae, Ji Ye Park, Suh Yeon Lee, Yu Sun Jeong, Byunghyun Park, Joon Seong Park, Brian A Zabel, Yong-Soo Bae, Yoe-Sik Bae
{"title":"Sphingosylphosphorylcholine Promotes Th9 Cell Differentiation Through Regulation of Smad3, STAT5, and β-Catenin Pathways.","authors":"Ji Cheol Kim, Wonseok Hu, Mingyu Lee, Geon Ho Bae, Ji Ye Park, Suh Yeon Lee, Yu Sun Jeong, Byunghyun Park, Joon Seong Park, Brian A Zabel, Yong-Soo Bae, Yoe-Sik Bae","doi":"10.4110/in.2024.24.e45","DOIUrl":"10.4110/in.2024.24.e45","url":null,"abstract":"<p><p>Sphingosylphosphorylcholine (SPC) is one of sphingomyelin-derived sphingolipids. SPC levels are increased in ascitic fluids of ovarian cancer patients and stratum corneum of atopic dermatitis (AD) patients. SPC has antitumor activity against several cancer cells by reducing proliferation and migration and increasing apoptosis <i>in vitro</i>. SPC can also cause scratching, potentially exacerbating symptoms of AD. However, the role of SPC in modulating immune responses, particularly in the differentiation of Th9 cells, which carry the most powerful antitumor activity among CD4<sup>+</sup> T cells, has yet to be investigated. In this study, we found that SPC is another inducer of Th9 cell differentiation by replicating TGF-β. SPC upregulated Smad3, STAT5, and β-catenin signaling pathways. Increased Smad3 and STAT5 signaling pathways by SPC promoted the differentiation of Th9 cells and increased β-catenin signaling pathway resulted in a less-exhausted, memory-like phenotype of Th9 cells. Increased Smad3, STAT5 and β-catenin signaling pathways by SPC were mediated by increased mitochondrial ROS. These results suggest that SPC is an important endogenous inducer of Th9 cell differentiation and may be one of the targets for treating Th9-related diseases, and that enhancing Th9 differentiation by SPC may be helpful in adoptive T cell therapy for cancer treatment.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 6","pages":"e45"},"PeriodicalIF":4.3,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11711130/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142970477","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 : 2024-12-24eCollection Date: 2024-12-01DOI: 10.4110/in.2024.24.e44
Hayeon Baek, Seung-Woo Yang, Min-Kyung Kim, Dongwoo Kim, Chaeyeon Lee, Seulki Kim, Yunseok Lee, Min Park, Han-Sung Hwang, Hyun-Jong Paik, Young-Sun Kang
{"title":"Activation of Immune Responses Through the RIG-I Pathway Using TRITC-Dextran Encapsulated Nanoparticles.","authors":"Hayeon Baek, Seung-Woo Yang, Min-Kyung Kim, Dongwoo Kim, Chaeyeon Lee, Seulki Kim, Yunseok Lee, Min Park, Han-Sung Hwang, Hyun-Jong Paik, Young-Sun Kang","doi":"10.4110/in.2024.24.e44","DOIUrl":"10.4110/in.2024.24.e44","url":null,"abstract":"<p><p>Pathogen-associated molecular patterns (PAMPs) are highly conserved motifs originating from microorganisms that act as ligands for pattern recognition receptors (PRRs), which are crucial for defense against pathogens. Thus, PAMP-mimicking vaccines may induce potent immune activation and provide broad-spectrum protection against microbes. Dextran encapsulation can regulate the surface characteristics of nanoparticles (NPs) and induces their surface modification. To determine whether dextran-encapsulated NPs can be used to develop antiviral vaccines by mimicking viral PAMPs, we synthesized NPs in a cyclohexane inverse miniemulsion (Basic-NPs) and further encapsulated them with dextran or tetramethylrhodamine isothiocyanate (TRITC)-dextran (Dex-NPs or TDex-NPs). We hypothesized that these dextran encapsulated NPs could activate innate immunity through cell surface or cytosolic PRRs. <i>In vitro</i> and <i>in vivo</i> experiments were performed using RAW 264.7 and C57BL/6 mice to test different concentrations and routes of administration. Only TDex-NPs rapidly increased retinoic acid-inducible gene I (RIG-I) at 8 h and directly bound to it, producing 120-300 pg/ml of IFN-α via the ERK/NF-κB signaling pathway in both <i>in vitro</i> and <i>in vivo</i> models. The effect of TDex-NPs in mice was observed exclusively with footpad injections. Our findings suggest that TRITC-dextran encapsulated NPs exhibit surface properties for RIG-I binding, offering potential development as a novel antiviral and anticancer RIG-I agonist.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 6","pages":"e44"},"PeriodicalIF":4.3,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11711124/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142970468","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 : 2024-12-24eCollection Date: 2024-12-01DOI: 10.4110/in.2024.24.e43
Ji Hwan Kim, Hyori Kim, A-Neum Lee, Hyung Bae Park, Kyungho Choi
{"title":"Monovalent Anti-CD3 Antibodies Effectively Eliminate the TCR-Positive Fraction of TCR-Deleted Allogeneic CAR-T Cells to Prevent GVHD.","authors":"Ji Hwan Kim, Hyori Kim, A-Neum Lee, Hyung Bae Park, Kyungho Choi","doi":"10.4110/in.2024.24.e43","DOIUrl":"10.4110/in.2024.24.e43","url":null,"abstract":"<p><p>Chimeric antigen receptor-transduced T (CAR-T) cell therapy is an effective cell therapy against advanced hematological tumors. However, the use of autologous T cells limits its timely and universal generation. Allogeneic CAR-T cell therapy may be a good alternative as a ready-to-use therapeutic. Graft-versus-host disease (GVHD) is an obstacle for allogeneic CAR-T cells, but can be prevented by TCR deletion through genome editing. However, the remaining TCR-positive cells must be eliminated by costly, large-scale magnetic cell separation. Therefore, an alternative method for removing TCR-positive cells is needed. In this study, we found that monovalent anti-CD3 Abs such as Fab and single-chain variable fragment (scFv), but not whole IgG, induce apoptosis of <i>in vitro</i> expanded T cells, thereby effectively depleting residual TCR-positive T cells during TCR-deleted CAR-T cell generation and ultimately preventing xenogeneic GVHD <i>in vivo</i>. Thus, monovalent anti-CD3 treatment during allogeneic CAR-T cell manufacturing would be an efficient method to prevent GVHD.</p>","PeriodicalId":13307,"journal":{"name":"Immune Network","volume":"24 6","pages":"e43"},"PeriodicalIF":4.3,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11711126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142970475","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}