Результаты поиска

The Role of Chimeric Antigen Receptor Regulatory T Cells in Promoting Immune Tolerance in Solid Organ Transplantation: Mechanisms and Therapeutic Potential.

Solid organ transplantation (SOT) is a life-saving procedure for patients with end-stage organ failure; however, lifelong immunosuppressant use is needed to prevent allograft rejection. These drugs increase the risk of non-Hodgkin lymphoma, liver, kidney, and lung cancers, and heighten susceptibility to oncogenic viruses, including hepatitis B and Epstein-Barr virus. The usage of chimeric antigen receptor (CAR) regulatory T (Treg) cells is a promising approach to induce transplant tolerance while minimizing dependence on immunosuppressants. The CAR Tregs offer the potential to enhance graft su

Multi-omics insights into immune tolerance at the maternal-fetal interface in recurrent pregnancy loss: mechanisms, integration challenges, and translational perspectives.

Recurrent pregnancy loss (RPL) is a heterogeneous reproductive disorder in which dysregulation of maternal-fetal immune tolerance, aberrant decidual immune remodeling, and altered inflammasome signaling have been implicated within a complex multi-omics landscape. Multi-omics profiling (genomics, epigenomics, single-cell/spatial transcriptomics, proteomics, metabolomics, microbiome analyses, and immunomics) is increasingly being used to characterize mechanistic heterogeneity in RPL and to support biomarker discovery and immune-informed stratification. Genomic studies have associated chromosomal…

The impact of potential food allergen exposure on wound healing after malignant tumor surgery: immune tolerance alterations and clinical risk assessment.

Wound healing after malignant tumor surgery is a critical determinant of patient recovery, and the dynamic changes in the postoperative immune system may alter tolerance to food allergens, thereby influencing the healing process. This review aims to systematically explore the alterations in immune tolerance following malignancy surgery, investigate the effects of potential food allergen exposure on wound healing, and analyze associated clinical risks. By integrating recent findings from immunology, nutrition, and surgery, we propose that postoperative allergen exposure may impede normal wound …

PLGA nanoparticles encapsulating TSHR-A and rapamycin enhance the induction of dendritic cell-specific immune tolerance in mice with Graves' disease.

Dendritic cells (DCs) are the most potent antigen-presenting cells with multifaceted functions in controlling immune activation and tolerance. Graves' disease, particularly Graves' ophthalmopathy, is recognized as a refractory autoimmune thyroid disease. Therefore, DC-targeted therapies aimed at inducing specific immune tolerance are important for the treatment of Graves' disease. Therefore, we utilized polylactic acid glycolic acid polymer (PLGA) polymer nanoparticles (NPs) encapsulating Graves' disease auto-antigen thyrotropin receptor A (TSHR-A) peptide and the immune tolerance inducer rapa…

Hypermethylation of the glutathione peroxidase 4 gene promoter is associated with the occurrence of immune tolerance phase in chronic hepatitis B.

BACKGROUND: Hepatitis B virus (HBV) infection is a public health problem that seriously threatens human health. This study aimed to investig … he methylation levels of GPX4 promoter were higher than those of HCs, especially in patients at the immune tolerance phase. STING mRNA expression levels in PBMCs and serum IFN-β levels of patients at the immune activation phase and reactivation phase of CHB were higher than those at other clinical phases of CHB and HCs. GPX4 mRNA expression level and methylation l …

Corrigendum: Treatment of surgical brain injury by immune tolerance induced by peripheral intravenous injection of biotargeting nanoparticles loaded with brain antigens.

[This corrects the article DOI: 10.3389/fimmu.2019.00743.].

Application of peripherally inserted central catheter in immune tolerance induction treatment of children with hemophilia A and accompanying inhibitors in China.

OBJECTIVE: To explore the feasibility, safety and cost effectiveness of the use of peripherally inserted central catheter (PICC) in children with hemophilia A and inhibitors who underwent ITI treatment. METHOD: This retrospective cohort study evaluated the effect of PICC placement and ITI on bleeding rates, costs, and parents' satisfaction before and within 6 months after PICC placement in children with hemophilia A and inhibitors. RESULTS: A total of 20 children with hemophilia A and high-titer inhibitors were included, with a success rate for PICC placement of 100%, at a cost of ¥6730.50.

Immune tolerance via FCR001 cell therapy compared with maintenance immunosuppression for kidney transplantation: Real-world evidence analysis of safety and efficacy.

While kidney transplantation (KTx) has traditionally required lifelong immunosuppression, an investigational stem cell therapy, FCR001, has been demonstrated to induce tolerance and eliminate the need for immunosuppression through the establishment of persistent mixed chimerism in a phase 2 clinical study. Real-world evidence (RWE) methods were employed to compare the safety and efficacy of non-myeloablative conditioning with FCR001 with standard of care [SOC] immunosuppression in a retrospective single-center analysis of outcomes among propensity score matched living-donor KTx receiving SOC (

Brief report: Autologous stem cell transplantation restores immune tolerance in experimental arthritis by renewal and modulation of the Teff cell compartment.

OBJECTIVE: Autologous stem cell transplantation (ASCT) induces long-term drug-free disease remission in patients with juvenile idiopathic ar … d T cells was significantly lower. CONCLUSION: Taken together, our data suggest that ABMT restores immune tolerance by renewal and modulation of the Teff cell compartment, leading to a strong reduction in proinflammatory (self antigen-specific) T cell cytokine production.

Early long-term FEIBA prophylaxis in haemophilia A patients with inhibitor after failing immune tolerance induction: A prospective clinical case series.

Persistent high-titre inhibitors after immune tolerance induction (ITI) increase the risks of haemorrhage and arthropathy, resulting in high morbidity and mortality. Long-term prophylaxis with bypassing agents may avert these risks. This study was performed to assess the effectiveness and safety of early prophylaxis with FEIBA in preventing bleeding and joint damage after failed ITI. Seven paediatric patients proceeded immediately after failed ITI to long-term FEIBA prophylaxis at 60-100 IU kg(-1) dosages and various dosing intervals depending upon bleeding tendency. Bleeding episodes and join…

A T-Cell Epitope Tandem Peptide Designed from Two Major Allergens of Crassostrea angulata Shows Potential for Inducing Dual Immune Tolerance.

The major allergens identified in Crassostrea angulata include tropomyosin (Cra a 1) and arginine kinase (Cra a 2). Currently, there are few … against both Cra a 1 and Cra a 2. Overall, hypoallergenic Cra a T has the potential to induce dual immune tolerance and is a candidate for oyster oral desensitization preparations.

Immunological heterogeneity in rheumatoid arthritis: challenges in early-stage stratification, non-response to targeted therapy, and the restoration of immune tolerance.

Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by chronic erosive synovitis, progressive bone destruction, and marked inter-patient heterogeneity in disease course and treatment response. This review critically examines the mechanisms underlying RA immunological heterogeneity, including genetic susceptibility, epigenetic regulation, autoantibody diversification, synovial pathotypes, and gut-joint axis-related immune-metabolic interactions. We further discuss how peripheral blood multi-omics, synovial molecular pathology, and biopsy-driven clinical trial evidence may i

Иммунологическая терпимость, вызванная нанолипосомой с автоантигенией Пептид и артесунатом в дополнение к инхибиту и перемоделировать иммунный баланс для лечения множественного склероза.

Множественный склероз (MS) — аутоиммунная болезнь (AD), сопровождаемая иммунными расстройствами и дополняющая сверхактивацию. Хотя повторное введение иммунного баланса смягчает симптомы MS, исследование сопутствующих дополнительных ингибиций для защиты нейронов не оценивалось. Здесь мы разработали миелин олигодендроцит гликопротеин 35-55 (MOG) пептид и артемизинин (ART) совместно загруженные липосомы (MOG-ART-Lip) для одновременного восстановления иммунного баланса и предотвращения активации дополнительных элементов. Эта наноплатформа повысила растворимость обоих компонентов, обеспечивая при э

Совпадение в аннотации оригинала
Multiple sclerosis (MS) is a demyelinating autoimmune disease (AD) accompanied by immune disorders and complement over activation. Although … modulator provides a promising modality for the treatment of MS by re-establishing antigen-specific immune tolerance. As such, the results of the study provide valuable insight into a new approach for development of combinatorial complement therapies for the treatment of MS patients.

Clinical and economic burden of immune tolerance induction in entire patients with hemophilia A: Insights from a real-world Korean setting.

INTRODUCTION: The most notable challenge facing hemophilia A treatment is the development of inhibitors against factor VIII, resulting in increased clinical and socioeconomic burdens due to the need for expensive bypassing agents (BPAs). Although immune tolerance induction (ITI) is currently the primary approach for inhibiting and reducing the inhibitors, the lengthy duration of ITI necessitates the continued use of BPA to manage bleeding episodes. In this study, we aimed to obtain real-world evidence on the clinical and economic aspects and associated burdens experienced by patients with hemo…

The bacterial quorum sensing signal 2'-aminoacetophenone rewires immune cell bioenergetics through the Ppargc1a/Esrra axis to mediate tolerance to infection.

How bacterial pathogens exploit host metabolism to promote immune tolerance and persist in infected hosts remains elusive. To achieve this, we show that Pseudomonas aeruginosa (PA), a recalcitrant pathogen, utilizes the quorum sensing (QS) signal 2'-aminoacetophenone (2-AA). Here, we unveil how 2-AA-driven immune tolerization causes distinct metabolic perturbations in murine macrophages' mitochondrial respiration and bioenergetics. We present evidence indicating that these effects stem from decreased pyruvate transport into mitochondria. This reduction is attributed to decreased expression of …

Low-dose immune tolerance induction therapy in severe hemophilia a children in China: Starting earlier resulted in better inhibitor eradication outcomes.

BACKGROUND: Shorter interval-time from inhibitor detection to starting immune tolerance induction (ITI) might predict better ITI outcomes for severe Hemophilia A (SHA) patients with high-risk-inhibitors. However, the prediction-impact of interval-time for these patients on low-dose ITI strategy remained unclear. OBJECTIVES: To explore the relationship between interval-time and low-dose ITI outcomes in Chinese SHA children with high-risk-inhibitors. METHODS: This was a single-center, retrospective study on SHA children with high-risk-inhibitors (each with immediate pre-ITI inhibitor titer>10 …

Toll-like receptor-4 null mutation causes fetal loss and fetal growth restriction associated with impaired maternal immune tolerance in mice.

Maternal immune adaptation to accommodate pregnancy depends on sufficient availability of regulatory T (Treg) cells to enable embryo implantation. Toll-like receptor 4 is implicated as a key upstream driver of a controlled inflammatory response, elicited by signals in male partner seminal fluid, to initiate expansion of the maternal Treg cell pool after mating. Here, we report that mice with null mutation in Tlr4 (Tlr4-/-) exhibit impaired reproductive outcomes after allogeneic mating, with reduced pregnancy rate, elevated mid-gestation fetal loss, and fetal growth restriction, compared to Tlr

Final Results of the Prospective ADVATE® Immune Tolerance Induction Registry (PAIR) Study with Plasma- and Albumin-Free Recombinant Factor VIII.

INTRODUCTION: Neutralizing antibodies to coagulation factor VIII (FVIII) remain a major complication associated with FVIII replacement therapy. AIM: To assess safety and efficacy of immune tolerance induction (ITI) therapy with ADVATE® (antihemophilic factor [recombinant] [rAHF]) in patients who participated in the Prospective ADVATE Immune Tolerance Induction Registry (PAIR) study. METHODS: The PAIR study was an international, multicenter, open-label, prospective, observational study in patients with hemophilia A and inhibitors, prescribed rAHF ITI therapy in clinical practice. The primary …

A nanoparticle-coupled T2 peptide induces immune tolerance and ameliorates chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) in mice model.

Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) is a complex disease of unclear etiology. Precise treatment of CP/CPPS is not available due to lack of specific cause; however, autoimmunity is the most valid theory. We develop a new treatment strategy that involves synthesis and coupling of biodegradable nanoparticles to antigenic T2 peptide to induce immune tolerance in CP/CPPS mice models. A total of 50 male C57BL/6 mice were randomized into five groups, that is, naïve, Model, PLGA-PEMA, PLGA-PEMA-OVA323-339 , and PLGA-PEMA-T2 group. All groups except naïve were injected subcutaneo…