Multiplex analysis of cytokines involved in tumour growth and spontaneous regression in a rat sarcoma model.
Folia Biol (Praha)
; 53(6): 216-9, 2007.
Article
em En
| MEDLINE
| ID: mdl-18070419
ABSTRACT
The aim of our study was to examine in vivo and in vitro cytokines produced by Lewis ratderived R5-28 sarcoma cells. These cells produce rapidly growing tumours in approximately two weeks after subcutaneous inoculation. However, spontaneous tumour regression was noted in about 40% of animals. For an explanation of this phenomenon, we evaluated the profile of 19 cytokines during tumour growth and spontaneous regression by the use of "antibody array". To detect cytokines directly originated by the sarcoma, the R5-28 cells were cultivated in vitro and then both the supernatants and the cell lysates were analysed. Our experiments showed three cytokines (MCP-1, TIMP-1 and VEGF) to be produced by R5-28 cells in vitro. Moreover, in vivo, another three cytokines (TNF-alpha, beta-NGF and LIX) were detected both in blood sera and tumour lysates, probably produced by immune and stromal cells during tumour growth. Changes in their expression after spontaneous regression are discussed.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Citocinas
/
Análise Serial de Proteínas
/
Neoplasias
Limite:
Animals
Idioma:
En
Ano de publicação:
2007
Tipo de documento:
Article