title: Immunohistochemical and biomolecular identification of orphanin FQ, eNOS, atrial natriuretic factor and oxytocin in rat seminal vesicles.
abstract: In previous studies performed on rodents, we detected the presence of adreno-cholinergic and peptidergic innervation in seminal vesicles and other organs of the male genital system, such as prostate and deferent duct, in which we also investigated the expression of NOS and NADPH-diaphorase. During this project, we focused our attention on the expression of some peptides involved in local control of smooth muscle relaxation, contractility, vasodilatation and control of blood flow in rat seminal vesicles. We investigated, through immunohistochemistry and RT-PCR, the presence of four peptides: orphanin, eNOS, ANF and oxytocin. Immunohistochemistry was used to detect the presence of the proteins, whereas RT-PCR analysis confirmed gene expression of orphanin, eNOS and ANF, but not oxytocin. In our opinion, orphanin, eNOS and ANF could have paracrine effects regulating the function of seminal vesicles, whereas oxytocin, which may reach this anatomical district through the blood flow, may have a hormonal action. This is a pilot study that, with further investigation, may allow to better clarify the role of these molecules in the control of seminal vesicle tissues' homeostasis.
authors.affiliation: Department of Experimental Medicine, Histology and Embriology Section.
authors.forename: A
authors.initials: A
authors.lastname: Mauro
authors.forename: M
authors.initials: M
authors.lastname: Buscemi
authors.forename: F
authors.initials: F
authors.lastname: Cappello
authors.forename: M L
authors.initials: ML
authors.lastname: Uzzo
authors.forename: E
authors.initials: E
authors.lastname: Farina-Lipari
authors.forename: A
authors.initials: A
authors.lastname: Martorana
authors.forename: A
authors.initials: A
authors.lastname: Gerbino
mesh_terms: D000818:Animals; D009320:Atrial Natriuretic Factor / Q000378:metabolism*; D007150:Immunohistochemistry; D008297:Male; D052250:Nitric Oxide Synthase Type III / Q000378:metabolism*; D018847:Opioid Peptides / Q000378:metabolism*; D010121:Oxytocin / Q000378:metabolism*; D051381:Rats; D012669:Seminal Vesicles / Q000378:metabolism*; D014665:Vasodilator Agents / Q000378:metabolism; D000097629:Nociceptin
chemical_list: D009320:Atrial Natriuretic Factor; D052250:Nitric Oxide Synthase Type III; D018847:Opioid Peptides; D010121:Oxytocin; D014665:Vasodilator Agents; D000097629:Nociceptin; C496316:Nos3 protein, rat