Evaluation of tumor necrosis factor alpha production in ex vivo short term cultured whole blood from women with polycystic ovary syndrome.
In mammals, the pleiotropic biological functions of tumor necrosis factor alpha (TNF-alpha) may include important effects on human reproductive physiology. Thus, chronic anovulation, oligo or amenorrhea, infertility, hyperandrogenism, obesity, insulin resistance and increased TNFalpha serum levels have been observed in women affected by polycystic ovary syndrome (PCOS). Whole blood short - term cell cultures (WBSC) are simple systems where the capacity to produce TNF-alpha by circulating leukocytes, mainly of the macrophage/monocyte lineage, can be accurately quantified. Given the relevance of monocytes/macrophages in the production of TNF-alpha, in this study, in a control-case approach, WBSC from women with PCOS were analyzed in their basal and lipolysaccharide (LPS)- stimulated capacity to produce the cytokine. These measurements did not correlate with the increased serum levels of the cytokine and the normal levels of cortisol, found in PCOS women. Increased serum TNF-alpha levels in PCOS women correlated positively with body mass index and negatively with insulin sensitivity. In spite of the increased serum TNF-alpha levels in PCOS women, basal and LPS stimulated production of the cytokine, by the ex vivo WBSC from these patients, were within normal values.
Araya
A Veronica
AV
Endocrinology Section, Department of Medicine, Endocrinology and Reproductive Biology Laboratory, University Hospital, Santiago, Chile. varaya@ns.hospital.uchile.cl
Aguirre
Adam
A
Romero
Carmen
C
Miranda
Cristian
C
Molina
Maria Carmen
MC
Ferreira
Arturo
A
D000293:Adolescent; D000328:Adult; D001773:Blood Cells / Q000276:immunology; D015992:Body Mass Index; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D007333:Insulin Resistance; D011085:Polycystic Ovary Syndrome / Q000097:blood / Q000276:immunology* / Q000473:pathology / Q000503:physiopathology; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis*
D014409:Tumor Necrosis Factor-alpha