Chemotaxis and chemotactic selection induced with cytokines (IL-8, RANTES and TNF-alpha) in the unicellular Tetrahymena pyriformis.

Abstract:

:Three representative cytokines interleukin (IL-8), RANTES and tumour necrosis factor alpha (TNF-alpha) have a concentration-dependent chemotactic effect on the unicellular Tetrahymena. Maximal effective concentrations of IL-8 (1 ng/ml) and RANTES (75 ng/ml) are in the same range as in mammals, which indicates an evolutionary background of physiological effects elicited. Progeny generations of cells selected for their affinity to cytokines (IL-8 and TNF-alpha) show an enhanced positive chemosensory reaction to the cytokines. The changed reaction of these cells to the chemoattraction of the culturing medium was also observed. The results call attention to the presence of cytokine-dependent processes at a low phylogenetic level.

journal_name

Cytokine

journal_title

Cytokine

authors

Köhidai L,Csaba G

doi

10.1006/cyto.1997.0328

subject

Has Abstract

pub_date

1998-07-01 00:00:00

pages

481-6

issue

7

eissn

1043-4666

issn

1096-0023

pii

S1043-4666(97)90328-8

journal_volume

10

pub_type

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