Constitutive or induced elevated levels of L-carnitine correlate with the cytokine and cellular profile of endometriosis.

Abstract:

:During the past decade, accumulated evidence indicates an association between endometriosis and an alteration of humoral and cell-mediated immunity. While the role of L-carnitine in the regulation of energy metabolism is well established, it is only recently that L-carnitine has been recognized to modify the immune response in mice after in vitro or in vivo treatment. The present study has examined whether administration of L-carnitine to young female mice alters the percentage of immune cells in peritoneal exudates and the uterus as well as the levels of IFN-gamma, TNF-alpha, IL-2, IL-4, IL-6, VEGF, GM-CSF and IGF-I in blood serum, peritoneal fluid and supernatants of uterine cultured cells as tested by immunofluorescence or ELISA techniques, respectively, leading to a pathological disorder resembling human endometriosis. The results showed that, except from infertility, L-carnitine treatment resulted in a significant increase of macrophages and to a lesser degree an increase of T-cells, while elevated levels of IFN-gamma and TNF-alpha were detected in both serum and peritoneal fluid compared to controls. Although levels of L-carnitine measured in mouse serum samples using a radioisotopic method showed an increase as compared to controls, levels of acyl-L-carnitine measured in the murine peritoneal fluid samples showed a decrease similar to that measured in peritoneal fluid samples from patients with endometriosis in stage IV of the disease. These results indicate that L-carnitine administration to female mice alters the cellular and growth factor profile in the uterus and peritoneum towards a phenotypical pathology similar to that of clinical endometriosis.

journal_name

J Reprod Immunol

authors

Dionyssopoulou E,Vassiliadis S,Evangeliou A,Koumantakis EE,Athanassakis I

doi

10.1016/j.jri.2004.12.002

subject

Has Abstract

pub_date

2005-04-01 00:00:00

pages

159-70

issue

2

eissn

0165-0378

issn

1872-7603

pii

S0165-0378(04)00172-X

journal_volume

65

pub_type

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