Evidence of Pneumocystis carinii in cell line cultures infected with peripheral blood mononuclear cells isolated from AIDS patients with P. carinii pneumonia. 1995

C Contini, and S Mastrantoni, and R Romani, and R Cultrera, and S Delia
Institute of Infectious and Respiratory Diseases, University of Ferrara, Italy.

The detection of Pneumocystis carinii was investigated in an in-vitro system consisting of a human lung epithelial cell line (A-549) inoculated with infected peripheral blood mononuclear cells (PMBC) from HIV-infected patients with proven or suspected P. carinii pneumonia (PCP), and from HIV-negative patients with other lung infections. Supernates from cultures were sampled daily and evaluated for the presence of P. carinii by Giemsa and immunofluorescence staining. P. carinii was isolated from 98 (95.1%) of 103 culture supernate samples from patients with proven pneumocystosis and 45 (66.1%) of 68 from patients with suspected PCP 40 or 72 h after PBMC inoculation. This system has been shown to support the growth of P. carinii but did not seem to be adequate for the production of large numbers of organisms, although long-term survival in vitro for up to 3 weeks was observed. Recovery of P. carinii from infected PBMC strongly supports previous observations about its ability to disseminate haematogenously and could represent a further advance in understanding the pathogenesis and diagnosis of PCP.

UI MeSH Term Description Entries
D007963 Leukocytes, Mononuclear Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules. Mononuclear Leukocyte,Mononuclear Leukocytes,PBMC Peripheral Blood Mononuclear Cells,Peripheral Blood Human Mononuclear Cells,Peripheral Blood Mononuclear Cell,Peripheral Blood Mononuclear Cells,Leukocyte, Mononuclear
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011010 Pneumocystis A genus of ascomycetous FUNGI, family Pneumocystidaceae, order Pneumocystidales. It includes various host-specific species causing PNEUMOCYSTIS PNEUMONIA in humans and other MAMMALS. Pneumocysti
D011020 Pneumonia, Pneumocystis A pulmonary disease in humans occurring in immunodeficient or malnourished patients or infants, characterized by DYSPNEA, tachypnea, and HYPOXEMIA. Pneumocystis pneumonia is a frequently seen opportunistic infection in AIDS. It is caused by the fungus PNEUMOCYSTIS JIROVECII. The disease is also found in other MAMMALS where it is caused by related species of Pneumocystis. P carinii Pneumonia,P. carinii Pneumonia,P. jirovecii Pneumonia,PCP Pneumonia,Pneumocystis Pneumonia,Pneumocystosis,Pneumonia, Interstitial Plasma Cell,PCP Infection,Pneumocystis carinii Pneumonia,Pneumocystis jirovecii Pneumonia,Pneumonia, Pneumocystis carinii,Infection, PCP,P carinii Pneumonias,P. carinii Pneumonias,P. jirovecii Pneumonias,PCP Infections,PCP Pneumonias,Pneumocystis Pneumonias,Pneumocystoses,Pneumonia, P carinii,Pneumonia, P. carinii,Pneumonia, P. jirovecii,Pneumonia, PCP,Pneumonia, Pneumocystis jirovecii,Pneumonias, PCP
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004847 Epithelial Cells Cells that line the inner and outer surfaces of the body by forming cellular layers (EPITHELIUM) or masses. Epithelial cells lining the SKIN; the MOUTH; the NOSE; and the ANAL CANAL derive from ectoderm; those lining the RESPIRATORY SYSTEM and the DIGESTIVE SYSTEM derive from endoderm; others (CARDIOVASCULAR SYSTEM and LYMPHATIC SYSTEM) derive from mesoderm. Epithelial cells can be classified mainly by cell shape and function into squamous, glandular and transitional epithelial cells. Adenomatous Epithelial Cells,Columnar Glandular Epithelial Cells,Cuboidal Glandular Epithelial Cells,Glandular Epithelial Cells,Squamous Cells,Squamous Epithelial Cells,Transitional Epithelial Cells,Adenomatous Epithelial Cell,Cell, Adenomatous Epithelial,Cell, Epithelial,Cell, Glandular Epithelial,Cell, Squamous,Cell, Squamous Epithelial,Cell, Transitional Epithelial,Cells, Adenomatous Epithelial,Cells, Epithelial,Cells, Glandular Epithelial,Cells, Squamous,Cells, Squamous Epithelial,Cells, Transitional Epithelial,Epithelial Cell,Epithelial Cell, Adenomatous,Epithelial Cell, Glandular,Epithelial Cell, Squamous,Epithelial Cell, Transitional,Epithelial Cells, Adenomatous,Epithelial Cells, Glandular,Epithelial Cells, Squamous,Epithelial Cells, Transitional,Glandular Epithelial Cell,Squamous Cell,Squamous Epithelial Cell,Transitional Epithelial Cell
D004848 Epithelium The layers of EPITHELIAL CELLS which cover the inner and outer surfaces of the cutaneous, mucus, and serous tissues and glands of the body. Mesothelium,Epithelial Tissue,Mesothelial Tissue,Epithelial Tissues,Mesothelial Tissues,Tissue, Epithelial,Tissue, Mesothelial,Tissues, Epithelial,Tissues, Mesothelial
D005260 Female Females

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