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Abstract
Medroxyprogesterone acetate (MPA) is widely used in oncology both in the treatment
of hormone-related cancers and as supportive therapy in anorexia/cachexia syndrome
(ACS), but conclusive data are not yet available to explain its anticachectic effect.
ACS is characterised by weight loss, changes in metabolism, reduction of appetite,
nausea and vomiting. Several cytokines, mainly interleukin (IL)-1, IL-2, IL-6 and
tumour necrosis factor a (TNFα), are involved in the pathogenesis of ACS. Additionally,
nausea and vomiting can be mediated by factors inducing serotonin (5-HT) production
and/or release by pleiotropic cells including activated T lymphocytes. In the present
study, we report the effect of MPA on peripheral blood mononuclear cells (PBMC) from
10 cancer patients in advanced stage of disease (6 head and neck, 2 colon, 1 lung
and 1 ovary). The proliferative response of PBMC to PHA, anti-CD3 monoclonal antibody
(MAb) or recombinant IL-2 (rIL-2), the production of IL-1β, IL-2, IL-6, TNFα and 5-HT
by PHA-stimulated PBMC and the expression of lymphocyte membrane-bound IL-2 receptor
(IL-2R) subunities (CD25 and CD122) were studied. The addition of MPA significantly
reduced the PBMC proliferative response to PHA and anti-CD3 MAb but not to rIL-2.
MPA 0.2 (μg/ml was also capable of reducing the levels of IL-1β, IL-6, TNFα and 5-HT
produced in culture by PHA-stimulated PBMC, whereas it did not induce any change in
the percentage of PBMC expressing either CD25 or CD122 or both molecules after stimulation
with PHA or anti-CD3 mAb.
Keywords
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Article info
Publication history
Accepted:
November 5,
1996
Received in revised form:
September 16,
1996
Received:
July 14,
1996
Identification
Copyright
© 1997 Published by Elsevier Inc.