منابع مشابه
The alveolar macrophage.
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. A population of macrophage precursors within the pulmonary interstitium provi...
متن کاملThe Relationship Between Alveolar Macrophage
A mononuclear cell alveolitis, comprised in part of activated macrophages, is thought to precede granuloma formation and fibrosis in pulmonary sarcoidosis. Tumor necrosis factor-a (TNF), interleukin 1-f3 (IL-l), and prostaglandin E, (PGE,) are potent mediators released by activated alveolar macrophages. To determine if alveolar macrophage TNF, IL-1, and PGE, release was associated with clinical...
متن کاملHuman Alveolar Macrophage Proteolytic
The occurrence of emphysema in people deficient in alphai-antltrypsin and the production of emphysema in experimental animals with elastolytic enzymes suggest proteolysis as a mechanism for the development of emphysema. To investigate the possible role of pulmonary alveolar macrophages in the pathogenesis of emphysema, we measured elastase, acid protease, and elastaselike esterase activities in...
متن کاملPPARs in Alveolar Macrophage Biology
PPARs, most notably PPAR-gamma, play a crucial role in regulating the activation of alveolar macrophages, which in turn occupy a pivotal place in the immune response to pathogens and particulates drawn in with inspired air. In this review, we describe the dual role of the alveolar macrophage as both a first-line defender through its phagocytotic activity and a regulator of the immune response. ...
متن کاملAlveolar Macrophage Phagocytosis of NTHI
Background. Interactions of nontypeable Haemophilus influenzae (NTHI) with human alveolar macrophages are implicated in the persistence of NTHI in chronic obstructive pulmonary disease (COPD). However, the immunologic mechanisms that mediate NTHI-induced macrophage responses are poorly understood. We hypothesized that immunologic responses of alveolar macrophages to NTHI are impaired in COPD. M...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Thorax
سال: 1985
ISSN: 0040-6376
DOI: 10.1136/thx.40.5.321