AI Article Synopsis
- Regulatory T (Treg) cells play a crucial role in preventing autoimmunity but also inhibit the immune system's ability to fight tumors, reducing cancer immunosurveillance.
- Research found that depleting Treg cells via a specific target called GARP can promote stronger anti-tumor immune responses.
- The novel monoclonal antibody DS-1055a effectively removes GARP+ Treg cells, activates effector T cells, and shows promising anti-tumor effects in mice with cancer, suggesting its potential as a new cancer immunotherapy.
Article Abstract
Regulatory T (Treg) cells, which are essential for maintaining self-tolerance, inhibit anti-tumor immunity, consequently hindering protective cancer immunosurveillance, and hampering effective anti-tumor immune responses in tumor-bearing hosts. Here, we show that depletion of Treg cells via targeting glycoprotein A repetitions predominant (GARP) induces effective anti-tumor immune responses. GARP was specifically expressed by highly suppressive Treg cells in the tumor microenvironment (TME) of multiple cancer types in humans. In the periphery, GARP was selectively induced in Treg cells, but not in effector T cells, by polyclonal stimulation. DS-1055a, a novel afucosylated anti-human GARP monoclonal antibody, efficiently depleted GARP+ Treg cells, leading to the activation of effector T cells. Moreover, DS-1055a decreased FoxP3+CD4+ T cells in the TME and exhibited remarkable anti-tumor activity in humanized mice bearing HT-29 tumors. We propose that DS-1055a is a new Treg-cell-targeted cancer immunotherapy agent with augmentation of anti-tumor immunity.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/intimm/dxab027 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Construction and validation of a regulatory T cells-based classification of renal cell carcinoma: an integrated bioinformatic analysis and clinical cohort study.
Cell Oncol (Dordr)
December 2024
Department of Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
Purpose: Renal cell carcinoma (RCC), exhibiting remarkable heterogeneity, can be highly infiltrated by regulatory T cells (Tregs). However, the relationship between Treg and the heterogeneity of RCC remains to be explored.
Methods: We acquired single-cell RNA-seq profiles and 537 bulk RNA-seq profiles of TCGA-KIRC cohort.
Allogeneic bone marrow derived clonal mesenchymal stromal cells in refractory rheumatoid arthritis: a pilot study.
Regen Med
December 2024
Department of Regenerative Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
Aims: This phase I trial assessed the safety and potential efficacy of monthly 3 dose intravenous infusion of allogeneic bone marrow-derived clonal mesenchymal stromal cells (BM-cMSCs) in refractory rheumatoid arthritis (RA) patients over 24 weeks.
Patients & Methods: Six patients with refractory RA received BM-cMSC infusions at one-month intervals over a 24-week period. Safety outcomes included adverse events (AEs) and serious adverse events (SAEs).
Diabetic cardiomyopathy (DCM) is a leading cause of death in diabetic patients. Current therapies do not adequately resolve this problem and focus only on the optimal level of blood glucose for patients. Ferroptosis plays an important role in diabetes mellitus and cardiovascular diseases.
View Article and Find Full Text PDFStem Cells Derived From Human Deciduous Exfoliated Teeth Ameliorate Adriamycin-Induced Nephropathy In Rats By Modulating The Th17/Treg Balance.
Curr Stem Cell Res Ther
December 2024
National Institute for Drug Clinical Trial, Beijing Tongren Hospital, Capital Medical University, No.1 Dongjiaominxiang Road, Beijing, 100730, China.
Background: Idiopathic Nephrotic Syndrome (INS) is a common kidney disease in children, and the main clinical manifestations are hypoproteinaemia, proteinuria, hyperlipidaemia, and oedema. Mesenchymal Stem Cells (MSCs) are involved in tissue repair, protection against fibrosis, and immune modulation but have rarely been studied in INS.
Objective: This study aimed to explore the therapeutic potential of stem cells derived from human exfoliated deciduous teeth (SHEDs) in INS using an adriamycin-induced nephropathy (AN) rat model.
Polysaccharides from Yupingfeng granules ameliorated cyclophosphamide-induced immune injury by protecting intestinal barrier.
Int Immunopharmacol
December 2024
Sinopharm Group Guangdong Medi-World Pharmaceutical Co., Ltd., Guangzhou, China.
Immune injury is the main side effect caused by cyclophosphamide and the disruption of the intestinal barrier may be an important cause. Yupingfeng granules have been reported to have immunomodulatory effects and polysaccharides are important components of them. This study aimed to investigate the ameliorative effect of polysaccharides from Yupingfeng granules (YPFP) on cyclophosphamide induced immune injury and reveal their potential mechanisms based on its protective effect on the intestine.
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!