Interferon responses of peripheral blood mononuclear cells from normal and leukaemic children. 1986

G S Mohammed, and C E Taylor, and A M Dickinson, and A W Craft, and J Kernahan, and M M Reid, and S J Proctor, and G L Toms

Human peripheral blood mononuclear cell cultures (PBMC) stimulated with Sendai virus or K562 cells produce a mixture of interferons. Temperature and pH stability characteristics and reactions with monospecific antibodies indicate that PBMC cultures from adults produce interferons alpha and gamma in approximately equal proportions. PBMC cultures from children produce lower levels of interferons with a higher proportion of type alpha. The ability of PBMC cultures from children with acute lymphoblastic leukaemia (ALL) to produce interferon was determined. Little or no gamma interferon was induced by either Sendai virus or K562 cells. Cultures from some children with ALL produced alpha interferon but mean levels were significantly lower than from normal children. A group of older children with ALL who had completed their course of therapy and were off treatment produced levels of interferon indistinguishable from those of normal children. This in vitro deficit, possibly induced by chemotherapy, may reflect an in vivo deficit and may contribute to the impaired handling of viruses seen in children being treated for ALL.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007369 Interferon Inducers Agents that promote the production and release of interferons. They include mitogens, lipopolysaccharides, and the synthetic polymers Poly A-U and Poly I-C. Viruses, bacteria, and protozoa have been also known to induce interferons. Inducers, Interferon
D007370 Interferon Type I Interferon secreted by leukocytes, fibroblasts, or lymphoblasts in response to viruses or interferon inducers other than mitogens, antigens, or allo-antigens. They include alpha- and beta-interferons (INTERFERON-ALPHA and INTERFERON-BETA). Interferons Type I,Type I Interferon,Type I Interferons,Interferon, Type I,Interferons, Type I
D007371 Interferon-gamma The major interferon produced by mitogenically or antigenically stimulated LYMPHOCYTES. It is structurally different from TYPE I INTERFERON and its major activity is immunoregulation. It has been implicated in the expression of CLASS II HISTOCOMPATIBILITY ANTIGENS in cells that do not normally produce them, leading to AUTOIMMUNE DISEASES. Interferon Type II,Interferon, Immune,gamma-Interferon,Interferon, gamma,Type II Interferon,Immune Interferon,Interferon, Type II
D007945 Leukemia, Lymphoid Leukemia associated with HYPERPLASIA of the lymphoid tissues and increased numbers of circulating malignant LYMPHOCYTES and lymphoblasts. Leukemia, Lymphocytic,Lymphocytic Leukemia,Lymphoid Leukemia,Leukemias, Lymphocytic,Leukemias, Lymphoid,Lymphocytic Leukemias,Lymphoid Leukemias
D007962 Leukocytes White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES). Blood Cells, White,Blood Corpuscles, White,White Blood Cells,White Blood Corpuscles,Blood Cell, White,Blood Corpuscle, White,Corpuscle, White Blood,Corpuscles, White Blood,Leukocyte,White Blood Cell,White Blood Corpuscle
D010222 Parainfluenza Virus 1, Human A species of RESPIROVIRUS also called hemadsorption virus 2 (HA2), which causes laryngotracheitis in humans, especially children. Hemadsorption Virus 2,Human parainfluenza virus 1,Para-Influenza Virus Type 1,Parainfluenza Virus Type 1,Para Influenza Virus Type 1
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children

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