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Monocyte-derived macrophages aggravate pulmonary vasculitis via cGAS/STING/IFN-mediated nucleic acid sensing

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Brain aging and neurodegeneration are associated with prominent microglial reactivity and activation of innate immune response pathways, commonly referred to as neuroinflammation. One such pathway, the type I interferon response, recognizes viral or mitoch ...

Cell Press2017

Role of microRNAs in tumor-associated macrophages

Tumor-associated macrophages (TAMs) infiltrate both mouse and human tumors, typically in high numbers, and display complex interactions with cancer cells, endothelial cells (ECs) and other immune cells. TAMs comprise molecularly distinct subsets. Two such ...

EPFL2016

Histology Staining Protocol Adaptation and Blood Smear Analysis

Iris Rentsch

Once a bone substitute, previously seeded with human bone progenitor cells, is implanted in a femoral condyle of a rat, it’s of importance to determine the intensity of a cell-triggered immune response of the host. Different techniques can be used, such as ...

2016

TRIM33 switches off Ifnb1 gene transcription during the late phase of macrophage activation

Michele De Palma, Mario Leonardo Squadrito

Despite its importance during viral or bacterial infections, transcriptional regulation of the interferon-beta gene (Ifnb1) in activated macrophages is only partially understood. Here we report that TRIM33 deficiency results in high, sustained expression o ...

Nature Publishing Group2015

Genetic engineering of hematopoiesis for targeted IFN-α delivery inhibits breast cancer progression

Michele De Palma, Mario Leonardo Squadrito

The immunosuppressive tumor microenvironment represents a major hurdle to cancer therapy. We developed a gene transfer strategy into hematopoietic stem cells (HSCs) to target transgene expression to tumor-infiltrating monocytes/macrophages. Using a combina ...

2014

TREX1 Deficiency Triggers Cell-Autonomous Immunity in a cGAS-Dependent Manner

Andrea Ablasser

Cytosolic detection of DNA is crucial for the initiation of antiviral immunity but can also cause autoimmunity in the context of endogenous nucleic acids being sensed. Mutations in the human 3' repair exonuclease 1 (TREX1) have been linked to the type I IF ...

2014

Cerebrospinal fluid-targeted delivery of neutralizing anti-IFN gamma antibody delays motor decline in an ALS mouse model

Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disorder characterized by the selective and gradual loss of motoneurons in the brain and spinal cord. A persistent inflammation, typified by the activation of astrocytes and microglia, ...

Lippincott, Williams & Wilkins2014

Most cases of neurodegenerative diseases are sporadic, hindering the use of genetic mouse models to analyze disease mechanisms. Focusing on the motor neuron (MN) disease amyotrophic lateral sclerosis (ALS), we therefore devised a fully humanized coculture ...

2014

Mycobacterium tuberculosis Requires Phosphate-Responsive Gene Regulation To Resist Host Immunity

John McKinney, Anna De Graff Tischler

Mycobacterium tuberculosis persists in the tissues of mammalian hosts despite inducing a robust immune response dominated by the macrophage-activating cytokine gamma interferon (IFN-gamma). We identified the M. tuberculosis phosphate-specific transport (Ps ...

American Society for Microbiology2013

Genetic Mouse Models of Neurodegenerative Diseases

Darren Moore, Alzbeta Trancikova, David Ramonet Jimenez

Neurodegenerative diseases are generally characterized by the selective degeneration of particular neuronal populations and the accumulation of abnormal or aggregated proteins within, but occasionally external to, neurons in affected brain regions. These d ...

2011