T cell responses in Hodgkin's disease: frequency distribution of IL-2 producing cells and quantitation of IL-2 produced per cell.
Indian J Biochem Biophys
;
1994 Aug; 31(4): 221-5
Artigo
em Inglês
| IMSEAR
| ID: sea-28527
ABSTRACT
T cell dysfunction in Hodgkin's disease (HD) is well documented. Since interleukin-2 (IL-2) plays a pivotal role in T cell proliferation, we have investigated frequency distribution of IL-2 producing phytohaemagglutinin (PHA)-stimulated lymphocytes from HD patients compared to that of healthy donors using two limiting dilution (LD) culture systems in which autologous peripheral blood lymphocytes (PBL) and Epstein Barr Virus transformed allogeneic B lymphoblastoid cell lines (EBV-LCL) have been used as feeders. The latter provided better conditions for IL-2 production by single cells, as evident from the enhanced frequencies obtained (For healthy donors 1/67 +/- 1545.5 using EBV-LCL and 1/1123 +/- 1.7438 using autologous PBL as feeders). The data showed significantly reduced frequency of IL-2 producing cells as well as reduced quantity of IL-2 produced per cell in HD even after using/EBV-LCL as feeders, the amount of IL-2 produced per activated responder cell in HD patients being 0.825-1.3 pg/well (p < 0.001) as compared to 1.48-2.43 pg/well in healthy donors. Thus, the EBV-LCL feeders did provide better culture conditions for estimating frequencies of functional T cells. However these cell lines were unable to restore in vitro the abnormalities in functional properties of T cells in HD.
Texto completo:
DisponíveL
Índice:
IMSEAR (Sudeste Asiático)
Assunto principal:
Humanos
/
Doença de Hodgkin
/
Linfócitos T
/
Linhagem Celular
/
Transformação Celular Viral
/
Células Cultivadas
/
Interleucina-2
/
Herpesvirus Humano 4
/
Adulto
/
Pessoa de Meia-Idade
Idioma:
Inglês
Revista:
Indian J Biochem Biophys
Ano de publicação:
1994
Tipo de documento:
Artigo
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