» Articles » PMID: 6973427

Stimulation of Chronic Lymphatic Leukaemia Cells by Pokeweed Mitogen After Treatment with Neuraminidase-galactose Oxidase

Overview
Date 1981 Apr 1
PMID 6973427
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

CLL lymphocytes gave a low response upon stimulation with PHA or PWM in 3-day cultures. However, after treatment with neuraminidase-galactose oxidase (NGO), in the presence of PWM, CLL lymphocytes transformed into blasts and incorporated 3H-thymidine in 3-day cultures. This response of CLL lymphocytes was similar to that given by normal lymphocytes to PWM in 3-day cultures. The best stimulation of CLL lymphocytes was achieved when conditioned medium (CM) from normal T lymphocytes was present in PWM cultures. Purified B lymphocytes from CLL (T lymphocytes and monocytes removed) did not respond to PHA or PWM. However, after NGO treatment these cells were stimulated by PWM, but only in the presence of CM. PHA failed to stimulate NGO-treated CLL lymphocytes or purified B lymphocytes. This study shows that CLL lymphocytes, which usually fail to respond to mitogens, can be stimulated by PWM to proliferate after treatment with neuraminidase-galactose oxidase (NGO). This technique of B cell stimulation has been found useful in cytogenetic studies of B cell proliferative disorders.

Citing Articles

Lymphoma cell culture under serum-free conditions.

Dai Y, Wang X, Jamal N, Messner H In Vitro Cell Dev Biol Anim. 1993; 29A(8):630-2.

PMID: 8376314 DOI: 10.1007/BF02634550.

References
1.
Catovsky D, TRIPP E, Hoffbrand A . Response to phytohaemagglutinin and pokeweed mitogen in chronic lymphocytic leukaemia. Lancet. 1972; 1(7754):794-5. View

2.
Jondal M, Holm G, Wigzell H . Surface markers on human T and B lymphocytes. I. A large population of lymphocytes forming nonimmune rosettes with sheep red blood cells. J Exp Med. 1972; 136(2):207-15. PMC: 2139198. DOI: 10.1084/jem.136.2.207. View

3.
Novogrodsky A, KATCHALSKI E . Induction of lymphocyte transformation by sequential treatment with neuraminidase and galactose oxidase. Proc Natl Acad Sci U S A. 1973; 70(6):1824-7. PMC: 433605. DOI: 10.1073/pnas.70.6.1824. View

4.
Greaves M, Janossy G, Doenhoff M . Selective triggering of human T and B lymphocytes in vitro by polyclonal mitogens. J Exp Med. 1974; 140(1):1-18. PMC: 2139703. DOI: 10.1084/jem.140.1.1. View

5.
Klemm W . Dissociation of EEG and behavioural effects of ethanol provide evidence for a noncholinergic basis of intoxication. Nature. 1974; 251(5472):234-6. DOI: 10.1038/251234a0. View