Immunocytochemical localization of insulin-like immunoreactivity in mouse seminal vesicle.
Insulin-like immunoreactivity was localized in tissue sections and cell cultures of mouse seminal vesicle using the indirect technique of immunocytochemistry. Seminal vesicles were cut into fragments, fixed in 2.5% glutaraldehyde, embedded in epoxy resin, sectioned at 1 micron, and transferred to glass slides. Epithelial cell cultures of seminal vesicle were grown on coverslips in Dulbecco's Minimal Essential Medium for 4-6 days and fixed in 2.5% glutaraldehyde. Sections (etched with sodium ethanolate) or coverslips were incubated in guinea pig antiporcine insulin antiserum, in antiserum immunoabsorbed with porcine insulin, or in normal guinea pig serum. For indirect immunocytochemistry, incubation with primary antiserum was followed by treatment with rabbit anti-guinea pig immunoglobulin (Ig) G conjugated to peroxidase, or with protein A and then rabbit peroxidase anti-peroxidase (PAP). Finally, treated samples were incubated in phenylenediamine-pyrocatechol-H2O2 substrate mixture for 6-8 min at room temperature. Specific immunoreactivity to insulin antisera was confined to the epithelium of the seminal vesicle in tissue sections. No staining occurred in subepithelial connective tissue. Specific immunoreactivity was also observed in the cytoplasm of cultured seminal vesicle epithelial cells.[1]References
- Immunocytochemical localization of insulin-like immunoreactivity in mouse seminal vesicle. Stahler, M.S., Pansky, B., Budd, G.C. Biol. Reprod. (1986) [Pubmed]
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