Tag Archives: regulatory T cells

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Therapeutically Expanded Human Regulatory T-cells Are Super-Suppressive Due to HIF1A Induced Expression of CD73

Scientists demonstrated that expanded human Tregs switch their metabolism to aerobic glycolysis and show enhanced suppressive function through hypoxia-inducible factor 1-alpha driven acquisition of CD73 expression.

[Communications Biology]

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CD73-Mediated Adenosine Production by CD8 T Cell-Derived Extracellular Vesicles Constitutes an Intrinsic Mechanism of Immune Suppression

The authors showed that extracellular vesicles isolated from the synovial fluid of patients with juvenile idiopathic arthritis contribute to T cell suppression in a CD73-dependent manner.

[Nature Communications]

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Therapeutic Melanoma Inhibition by Local Micelle-Mediated Cyclic Nucleotide Repression

Researchers demonstrated that single-cell sequencing of melanoma-infiltrating immune cells showed that adenylate cyclase inhibitor micelles reduced the number of anti-inflammatory myeloid cells and checkpoint receptor expression on T cells.

[Nature Communications]

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Endometrial Mesenchymal Stem/Stromal Cells: The Enigma to Code Messages for Generation of Functionally Active Regulatory T Cells

The effect of MSCs on proliferation of anti-CD3/CD28-stimulated T CD4+ cells and generation of Tregs with or without pre-treatment with mitomycin C, IFN-γ and IL-1β was evaluated by flow cytometry.

[Stem Cell Research & Therapy]

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Review

Targeting of the Tumor Immune Microenvironment by Metformin

The authors explain the basic mechanisms for the interactions and communications between immunosuppressive, anti-tumoral, and cancer cells within the tumor microenvironment (TME), and discuss the modulating effects of metformin on various cells and secretions in the TME.

[Journal of Cell Communication and Signaling]

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Abstract

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The Legacy of Maternal SARS-CoV-2 Infection on the Immunology of the Neonate

Scientists characterized the immunology of neonates born to mothers with confirmed SARS-CoV-2 infection during pregnancy. They showed that maternal SARS-CoV-2 infection affected the neonatal immune system.

[Nature Immunology]

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Abstract Graphical Abstract

Intrauterine Administration of Peripheral Blood Mononuclear Cells (PBMCs) Improves Embryo Implantation in Mice by Regulating Local Treg/Th17 Cell Balance

Investigators determined the effect of intrauterine administration of mouse PBMCs prior to embryo implantation on endometrial receptivity and embryo implantation, and examined the underlying mechanism of Treg/Th17 cell balance following intrauterine administration of PBMCs.

[Journal of Reproduction and Development]

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Abstract Graphical Abstract

Biomaterial-Enabled Induction of Pancreatic-Specific Regulatory T Cells through Distinct Signal Transduction Pathways

Scientists used poly (lactic-co-glycolide) to co-encapsulate type 1 diabetes-relevant antigen and 3 distinct TREG-inducing molecules – rapamycin, all-trans retinoic acid, and butyrate – that targeted the mechanistic target of Rapa, the retinoid pathway, and histone deacetylase inhibition, respectively.

[Drug Delivery and Translational Research]

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industry & policy

Surface Oncology Announces New Randomized Phase II Clinical Study Evaluating SRF388 in Patients with First-Line Hepatocellular Carcinoma in Clinical Collaboration with Roche

Surface Oncology, an immuno-oncology company developing next-generation immunotherapies that target the tumor microenvironment, announced details about its plan to initiate a randomized Phase II clinical study evaluating SRF388, in combination with Roche’s atezolizumab and bevacizumab, in patients with treatment-naïve hepatocellular carcinoma.

[Surface Oncology]

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Press Release

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CD177 Modulates the Function and Homeostasis of Tumor-Infiltrating Regulatory T Cells

Using single-cell RNA sequencing of immune cells from renal clear cell carcinoma patients, investigators identified two distinct transcriptional fates for tumor-infiltrating Treg cells, Fate-1 and Fate-2.

[Nature Communications]

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