Results 111 to 120 of about 1,818,468 (377)

Estimating the number of tissue resident macrophages [PDF]

open access: yesarXiv, 2016
I provide a simple estimation for the number of macrophages in a tissue, arising from the hypothesis that they should keep infections below a certain threshold, above which neutrophils are recruited from blood circulation. The estimation reads Nm=a Ncel^{\alpha}/Nmax, where a is a numerical coefficient, the exponent {\alpha} is near 2/3, and Nmax is ...
arxiv  

Integrative systems‐level analysis reveals a contextual crosstalk between hypoxia and global metabolism in human breast tumors

open access: yesMolecular Oncology, EarlyView.
Breast tumor samples scored for metabolic deregulation (M1 to M3) were given a hypoxia score (HS). The highest HS occurred in patients with strongest metabolic deregulation (M3), supporting tumor aggressiveness. HS correlated with the highest number of metabolic pathways in M1. This suggests hypoxia to be an early event in metabolic deregulation.
Raefa Abou Khouzam   +2 more
wiley   +1 more source

Effects of nanoparticles on murine macrophages [PDF]

open access: yes, 2011
Metallic nanoparticles are more and more widely used in an increasing number of applications. Consequently, they are more and more present in the environment, and the risk that they may represent for human health must be evaluated. This requires to increase our knowledge of the cellular responses to nanoparticles. In this context, macrophages appear as
arxiv   +1 more source

Polarization of macrophages toward M2 phenotype is favored by reduction in iPLA2β (group VIA phospholipase A2)* [PDF]

open access: yes, 2016
Macrophages are important in innate and adaptive immunity. Macrophage participation in inflammation or tissue repair is directed by various extracellular signals and mediated by multiple intracellular pathways.
Ashley, Jason W   +7 more
core   +2 more sources

Outer Membrane Vesicles Prime and Activate Macrophage Inflammasomes and Cytokine Secretion In Vitro and In Vivo

open access: yesFrontiers in Immunology, 2017
Outer membrane vesicles (OMVs) are proteoliposomes blebbed from the surface of Gram-negative bacteria. Chronic periodontitis is associated with an increase in subgingival plaque of Gram-negative bacteria, Porphyromonas gingivalis, Treponema denticola ...
Jessica D. Cecil   +7 more
doaj   +1 more source

The accumulation of myeloid‐derived suppressor cells participates in abdominal infection‐induced tumor progression through the PD‐L1/PD‐1 axis

open access: yesMolecular Oncology, EarlyView.
This study explores how sepsis affects GC progression by creating an immunosuppressive environment. Our findings reveal that sepsis promotes immune dysregulation, enhancing tumor growth and metastasis. Targeting the PD‐1/PD‐L1 pathway with monoclonal antibodies shows potential for restoring immune function and improving outcomes in cancer patients ...
Yiding Wang   +10 more
wiley   +1 more source

Multi‐omics profiling reveals key factors involved in Ewing sarcoma metastasis

open access: yesMolecular Oncology, EarlyView.
Using a mouse model that recapitulates the spread of tumor cells within the body, we have profiled paired tumors and metastasis samples using a multiomics approach combining different layers of biological information. We identified key genes that drive metastasis in Ewing sarcoma.
Mariona Chicón‐Bosch   +11 more
wiley   +1 more source

Infection-generated electric field in gut epithelium drives bidirectional migration of macrophages. [PDF]

open access: yes, 2019
Many bacterial pathogens hijack macrophages to egress from the port of entry to the lymphatic drainage and/or bloodstream, causing dissemination of life-threatening infections. However, the underlying mechanisms are not well understood.
Ferreira, Fernando   +14 more
core   +2 more sources

Cas9+ conditionally-immortalized macrophages as a tool for bacterial pathogenesis and beyond. [PDF]

open access: yes, 2019
Macrophages play critical roles in immunity, development, tissue repair, and cancer, but studies of their function have been hampered by poorly-differentiated tumor cell lines and genetically-intractable primary cells.
Barton, Gregory M   +7 more
core  

Resident macrophages of pancreatic islets have a seminal role in the initiation of autoimmune diabetes of NOD mice [PDF]

open access: yes, 2017
Significance Our studies indicate that the resident macrophages of the pancreatic islets of Langerhans have a seminal role in the initiation and progression of autoimmune diabetes in NOD mice.
Carrero, Javier A.   +7 more
core   +2 more sources

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