Evidence for a cytotoxic T-lymphocyte alveolitis in human immunodeficiency virus-infected patients. 1988

B Autran, and C M Mayaud, and M Raphael, and F Plata, and M Denis, and A Bourguin, and J M Guillon, and P Debre, and G Akoun
Laboratoire d'Immunologie Cellulaire et Tissulaire, Hôpital Pitié-Salpetrière, Paris, France.

A T8 lymphocyte alveolitis occurs in HIV-positive patients, even in the absence of any lung infections or tumors. Using the monoclonal antibody (MAb) D44, the CD8+ T cells can be further subdivided into two functional subsets of cytotoxic T lymphocytes (CTL; CD8+, D44+) and suppressor T cells (CD8+, D44-). A dual fluorescence analysis of alveolar and peripheral lymphocytes has been used in HIV-positive patients without lung infections or tumors to reveal a dramatic increase in alveolar T8 lymphocytes (83%), compared to peripheral values (52%), which was mainly composed (89%) of CD8+ D44+ CTLs. Functional studies confirmed the cytolytic activity of these phenotypically defined alveolar CTLs on autologous alveolar macrophages used as target cells, excluding a natural killer-like activity. An immuno-enzyme analysis concomitantly revealed the co-expression of the p18 HIV antigen and the CD4 molecule on the autologous alveolar macrophages. These data suggest that CTL alveolitis occurs during HIV infection and is directed against HIV-infected alveolar macrophages which are presumably the targets of the locally recruited lung CTLs.

UI MeSH Term Description Entries
D008264 Macrophages The relatively long-lived phagocytic cell of mammalian tissues that are derived from blood MONOCYTES. Main types are PERITONEAL MACROPHAGES; ALVEOLAR MACROPHAGES; HISTIOCYTES; KUPFFER CELLS of the liver; and OSTEOCLASTS. They may further differentiate within chronic inflammatory lesions to EPITHELIOID CELLS or may fuse to form FOREIGN BODY GIANT CELLS or LANGHANS GIANT CELLS. (from The Dictionary of Cell Biology, Lackie and Dow, 3rd ed.) Bone Marrow-Derived Macrophages,Monocyte-Derived Macrophages,Macrophage,Macrophages, Monocyte-Derived,Bone Marrow Derived Macrophages,Bone Marrow-Derived Macrophage,Macrophage, Bone Marrow-Derived,Macrophage, Monocyte-Derived,Macrophages, Bone Marrow-Derived,Macrophages, Monocyte Derived,Monocyte Derived Macrophages,Monocyte-Derived Macrophage
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011014 Pneumonia Infection of the lung often accompanied by inflammation. Experimental Lung Inflammation,Lobar Pneumonia,Lung Inflammation,Pneumonia, Lobar,Pneumonitis,Pulmonary Inflammation,Experimental Lung Inflammations,Inflammation, Experimental Lung,Inflammation, Lung,Inflammation, Pulmonary,Inflammations, Lung,Inflammations, Pulmonary,Lobar Pneumonias,Lung Inflammation, Experimental,Lung Inflammations,Lung Inflammations, Experimental,Pneumonias,Pneumonias, Lobar,Pneumonitides,Pulmonary Inflammations
D011650 Pulmonary Alveoli Small polyhedral outpouchings along the walls of the alveolar sacs, alveolar ducts and terminal bronchioles through the walls of which gas exchange between alveolar air and pulmonary capillary blood takes place. Alveoli, Pulmonary,Alveolus, Pulmonary,Pulmonary Alveolus
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000163 Acquired Immunodeficiency Syndrome An acquired defect of cellular immunity associated with infection by the human immunodeficiency virus (HIV), a CD4-positive T-lymphocyte count under 200 cells/microliter or less than 14% of total lymphocytes, and increased susceptibility to opportunistic infections and malignant neoplasms. Clinical manifestations also include emaciation (wasting) and dementia. These elements reflect criteria for AIDS as defined by the CDC in 1993. AIDS,Immunodeficiency Syndrome, Acquired,Immunologic Deficiency Syndrome, Acquired,Acquired Immune Deficiency Syndrome,Acquired Immuno-Deficiency Syndrome,Acquired Immuno Deficiency Syndrome,Acquired Immuno-Deficiency Syndromes,Acquired Immunodeficiency Syndromes,Immuno-Deficiency Syndrome, Acquired,Immuno-Deficiency Syndromes, Acquired,Immunodeficiency Syndromes, Acquired,Syndrome, Acquired Immuno-Deficiency,Syndrome, Acquired Immunodeficiency,Syndromes, Acquired Immuno-Deficiency,Syndromes, Acquired Immunodeficiency
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal

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