Journal of Andrology
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Published-Ahead-of-Print July 12, 2006, DOI:10.2164/jandrol.106.000034
Journal of Andrology, Vol. 27, No. 6, November/December 2006
Copyright © American Society of Andrology
DOI: 10.2164/jandrol.106.000034

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Detection of 90K/MAC-2BP in the Seminal Plasma of Infertile Males With Accessory Gland Infection and the Autoimmune Pathogenetic Hypothesis

ETTORE CAROPPO*, CRAIG NIEDERBERGER{dagger}, PALMA A. IACOVAZZI{ddagger}, MARIO CORREALE{ddagger} AND GIUSEPPE D'AMATO*

From the * UO. Fisiopatologia della Riproduzione Umana and the {ddagger} UO Patologia Clinica, IRCCS "S. de Bellis", Castellana Grotte (Ba), Italy; and the {dagger} Division of Andrology, Department of Urology, University of Illinois at Chicago, Chicago, Illinois.

Correspondence to: Dr Ettore Caroppo, Via Napoli 32, 70012 Bari Carbonara, Italy (e-mail: ecaroppo{at}teseo.it).


The purpose of the study was to evaluate 90K/MAC-2BP, a glycoprotein member of the Scavenger Receptor Cystein Rich superfamily, in the seminal plasma of infertile male patients with male accessory gland infection in order to investigate a putative autoimmune pathogenesis. 90K seminal concentration and sperm parameters were evaluated in 50 patients with male accessory gland infection at baseline and after cycles of treatment with Levofluoxacin 500 mg daily for 15 days plus serratiopeptidase 10 mg daily for 30 days. Treatment was continued for up to 6 cycles in cases of persistant bacteriospermia and/or clinical and ejaculatory signs of the disease. Patients with persistant male accessory gland infection after 6 cycles were defined as nonresponders. The same parameters were evaluated at baseline and after a 2-month period in 30 healthy controls. Patients with male accessory gland infection showed impaired sperm parameters and had lower seminal 90K concentration compared to controls. After treatment, seminal 90K level significantly increased in patients compared to controls. Twenty-two patients responded to treatment (44%), while 28 were nonresponders (56%). No difference in pretreatment and posttreatment sperm parameters and seminal 90K was observed between the 2 subgroups. Thirteen patients (26%) had identifiable bacteriospermia: significantly less pretreatment seminal 90K was observed compared to patients without bacteriospermia. Seminal 90K is decreased in patients with male accessory gland infection, and may be restored by a treatment with quinolones. However, the clinical utility of a 90K assay in these patients remains uncertain, as its level is not predictive of response to treatment.

     Key words: Male infertility, autoimmunity, prostatitis, quinolones






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Copyright © 2006 by The American Society of Andrology.