Impact of stress and mast cells on brain metastases

Abstract Metastases continue to be the chief cause of morbidity and mortality for many tumors, including brain metastases of lung and mammary adenocarcinoma. Stress appears to increase metastases, but the mechanism is not understood. Recent evidence suggests that local inflammation is conducive for...

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Veröffentlicht in:Journal of neuroimmunology 2008-12, Vol.205 (1), p.1-7
Hauptverfasser: Theoharides, Theoharis C, Rozniecki, Jacek J, Sahagian, Gary, Jocobson, Stanley, Kempuraj, Duraisamy, Conti, Pio, Kalogeromitros, Dimitris
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container_end_page 7
container_issue 1
container_start_page 1
container_title Journal of neuroimmunology
container_volume 205
creator Theoharides, Theoharis C
Rozniecki, Jacek J
Sahagian, Gary
Jocobson, Stanley
Kempuraj, Duraisamy
Conti, Pio
Kalogeromitros, Dimitris
description Abstract Metastases continue to be the chief cause of morbidity and mortality for many tumors, including brain metastases of lung and mammary adenocarcinoma. Stress appears to increase metastases, but the mechanism is not understood. Recent evidence suggests that local inflammation is conducive for cancer growth and a unique immune cell, the mast cell, accumulates in the stroma surrounding tumors and is critically located at the blood-brain-barrier (BBB). Mast cells express receptors for and can be stimulated by corticotropin-releasing hormone (CRH), secreted under stress, to release mediators such as histamine, IL-8, tryptase and vascular endothelial growth factor (VEGF), which disrupt the BBB permitting metastases. Stress and mast cells could serve as new targets for drug development to prevent brain metastases, especially since CRH receptor antagonists and brain mast cell inhibitors have recently been developed.
doi_str_mv 10.1016/j.jneuroim.2008.09.014
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Stress appears to increase metastases, but the mechanism is not understood. Recent evidence suggests that local inflammation is conducive for cancer growth and a unique immune cell, the mast cell, accumulates in the stroma surrounding tumors and is critically located at the blood-brain-barrier (BBB). Mast cells express receptors for and can be stimulated by corticotropin-releasing hormone (CRH), secreted under stress, to release mediators such as histamine, IL-8, tryptase and vascular endothelial growth factor (VEGF), which disrupt the BBB permitting metastases. 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source MEDLINE; Elsevier ScienceDirect Journals
subjects Allergy and Immunology
Animals
Blood-Brain Barrier - drug effects
Blood-Brain Barrier - physiopathology
Blood-brain-barrier
Brain Neoplasms - etiology
Brain Neoplasms - secondary
Breast cancer
Humans
Inflammation
Inflammation - pathology
Inflammation - physiopathology
Inflammation Mediators - metabolism
Inflammation Mediators - pharmacology
Mast cells
Mast Cells - metabolism
Metastases
Neurology
Stress
Stress, Psychological - pathology
Stress, Psychological - physiopathology
title Impact of stress and mast cells on brain metastases
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