Chemotactic and phagocytic responses of human alveolar macrophages to activated complement components
نویسندگان
چکیده
منابع مشابه
Chemotactic responsiveness of human alveolar macrophages: effects of cigarette smoking.
Pulmonary alveolar macrophages from six cigarette smokers demonstrated higher random migration and greater chemotactic responsiveness to casein than did macrophages from seven nonsmokers. These observations are consistent with the concept that pulmonary macrophages are metabolically activated by cigarette smoking.
متن کاملAcetylcholine stimulates alveolar macrophages to release inflammatory cell chemotactic activity.
Neurological transmitters including ACh, substance P (SP), and calcitonin gene-related peptide (CGRP) play an important role in regulating airway tone, and increased bronchial reactivity to cholinergic stimulation is a well-recognized phenomenon in patients with bronchial asthma. We postulated that ACh, SP, and CGRP might stimulate alveolar macrophages (AMs) to release neutrophil, monocyte, and...
متن کاملLipids of alveolar macrophages, polymorphonuclear leukocytes, and their phagocytic vesicles.
Phagocytic vesicles were isolated from rabbit alveolar macrophages and guinea pig polymorphonuclear leukocytes that had ingested emulsified paraffin oil. Phospholipids and their fatty acids were determined in whole cells and in the phagocytic vesicle and pellet fractions separated from them. The cholesterol-to-phospholipid ratios in the vesicle fractions were distinctly higher than those of the...
متن کاملLysis of human alveolar macrophages by lymphokine-activated killer cells.
In order to determine if human LAK cells were cytotoxic against autologous AM phi, we studied the ability of human peripheral blood MNCs, stimulated in vitro with recombinant human IL-2, to lyse AM phi in a four-hour 51Cr-release assay. These cells showed significant cytotoxicity against autologous AM phi. The AM phi which had been cultured for four days served as better targets than freshly is...
متن کاملPhagocytic dysfunction of human alveolar macrophages and severity of chronic obstructive pulmonary disease.
BACKGROUND Alveolar macrophages in chronic obstructive pulmonary disease (COPD) have fundamental impairment of phagocytosis for nontypeable Haemophilus influenzae (NTHI). However, relative selectivity of dysfunctional phagocytosis among diverse respiratory pathogens: NTHI, Moraxella catarrhalis (MC), Streptococcus pneumoniae (SP), and nonbacterial particles, as well as the contribution of impai...
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: Infection and Immunity
سال: 1984
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.43.2.775-778.1984