TY - JOUR
T1 - Antifungal activity of elutriated human monocytes against aspergillus fumigatus hyphae
T2 - Enhancement by granulocyte-macrophage colonystimulating factor and interferon-γ
AU - Roilides, Emmanuel
AU - Holmes, Andrew
AU - Blake, Cassann
AU - Venzon, David
AU - Pizzo, Philip A.
AU - Walsh, Thomas J.
PY - 1994/10
Y1 - 1994/10
N2 - Human monocytes are important effector cells in host defenses against Aspergillus hyphae, and as elutriated monocytes (EHM) they may be transfused in large quantities to leukopenic patients with invasive aspergillosis. The antifungal activity of EHM against Aspergillus hyphae was compared with that of polymorphonuclear leukocytes (PMNL). The effects of granulocytemacrophage colony-stimulating factor (GM-CSF) and interferon-γ (IFN-γ) on superoxide anion (0-2) release and on hyphal damage caused by EHM against unopsonized A. fumigatus hyphae was investigated. EHM had antihyphal activity comparable to that of PMNL. GM-CSF significantly augmented 0-2 release by EHM in response to PMA. Also, both GM-CSF and IFN-γ significantly enhanced the antifungal activity of EHM compared with untreated controls. Thus, EHM have demonstrable antifungal activity against Aspergillus hyphae that may be increased by GM-CSF and IFN-³, suggesting their potential therapeutic role in immune reconstitution of effector cells.
AB - Human monocytes are important effector cells in host defenses against Aspergillus hyphae, and as elutriated monocytes (EHM) they may be transfused in large quantities to leukopenic patients with invasive aspergillosis. The antifungal activity of EHM against Aspergillus hyphae was compared with that of polymorphonuclear leukocytes (PMNL). The effects of granulocytemacrophage colony-stimulating factor (GM-CSF) and interferon-γ (IFN-γ) on superoxide anion (0-2) release and on hyphal damage caused by EHM against unopsonized A. fumigatus hyphae was investigated. EHM had antihyphal activity comparable to that of PMNL. GM-CSF significantly augmented 0-2 release by EHM in response to PMA. Also, both GM-CSF and IFN-γ significantly enhanced the antifungal activity of EHM compared with untreated controls. Thus, EHM have demonstrable antifungal activity against Aspergillus hyphae that may be increased by GM-CSF and IFN-³, suggesting their potential therapeutic role in immune reconstitution of effector cells.
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U2 - 10.1093/infdis/170.4.894
DO - 10.1093/infdis/170.4.894
M3 - Article
C2 - 7930733
AN - SCOPUS:0027981993
VL - 170
SP - 894
EP - 899
JO - Journal of Infectious Diseases
JF - Journal of Infectious Diseases
SN - 0022-1899
IS - 4
ER -