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Macrophages are a diverse population of phagocytic cells that reside in tissues throughout the body. At sites of infection, macrophages encounter and engulf invading microbes. Accordingly, macrophages possess specialized effector functions to kill or coordinate the elimination of their prey.
Jordan V. Price, Russell E. Vance
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Immunological memory is a crucial part of the immune defense that allows organisms to respond against previously encountered pathogens or other harmful factors. Immunological memory is based on the establishment of epigenetic modifications of the genome.
Malgorzata Kloc+3 more
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The elegance of a macrophage [PDF]
In the latest issue of Nature Immunology, Piccolo et al.1 elegantly explored the effect of coexisting interferon-γ (IFN-γ) and interleukin 4 (IL-4) antagonistic signals on macrophage transcriptional and epigenetic profiles and, interestingly, identified a plastic cross-talk as opposed to mutually exclusive programs between M1 and M2 polarized ...
M. De Santis, M. Locati, C. Selmi
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The alveolar macrophage. [PDF]
The pulmonary macrophagic system is critical to the defense of the lung, keeping the alveoli clean and sterile and responding on demand with an adaptive outpouring of new cells into the air sacs. Under basal conditions alveolar macrophages, in common with other mononuclear phagocytes, are derived from the bone marrow.
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Macrophages in xenotransplantation [PDF]
Xenotransplantation refers to organ transplantation across species. Immune rejection of xenografts is stronger and faster than that of allografts because of significant molecular differences between species. Recent studies have revealed the involvement of macrophages in xenograft and allograft rejections.
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Macrophages expressing PPARγ support skeletal muscle regeneration by inducing secretion of the myoblast growth factor GDF3.
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The pulmonary macrophage. [PDF]
An overview of the pulmonary macrophage is provided, with particular emphasis on the origin of this cell and the adaptive mechanisms whereby the macrophagic system is able to respond to increased inhalant loads of organic and inorganic pollutants. Evidence is presented which favors an hematopoietic origin for the alveolar macrophage with a monocytic ...
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Obesity is a worldwide public health concern yet no safe therapies are currently available. The activity of sympathetic neurons is necessary and sufficient for fat mass reduction, via norepinephrine (NE) signaling. Macrophage accumulation in the adipose tissue is thought to play the central role in the onset of obesity, yet their relation to NE has ...
Ana Domingos+3 more
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Macrophages and neurodegeneration
Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system (CNS). Demyelination is a classical feature of MS lesions, and neurological deficits are often ascribed to the reduced signal conduction by demyelinated axons. However, recent studies emphasize that axonal loss is an important factor in MS pathogenesis
Hendriks, Jerome J A+3 more
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Macrophages are part of the innate immune system, recognizing, engulfing, and destroying many potential pathogens including bacteria, pathogenic protozoa, fungi, and helminths. The destructive potential of macrophages and their ability to secrete regulators of the function of neighboring cells contribute to many aspects of homeostasis.
Sasmono, R.T., Hume, D. A.
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