6533b827fe1ef96bd12865be
RESEARCH PRODUCT
Immunoelectron-microscopic localization of synaptophysin in the organ of Corti of the guinea pig.
Jan MaurerKarin BackesUlf-rüdiger HeinrichWolf J. Mannsubject
Pathologymedicine.medical_specialtyCytoplasmImmunoelectron microscopyImmunocytochemistryGuinea PigsSynaptophysinlaw.inventionGuinea piglawotorhinolaryngologic diseasesmedicineAnimalsInner earMicroscopy ImmunoelectronCochleaHair Cells Auditory InnerbiologyChemistryImmunohistochemistryHair Cells Auditory Outermedicine.anatomical_structurenervous systemOtorhinolaryngologyOrgan of CortiSynaptophysinbiology.proteinsense organsElectron microscopedescription
Synaptophysin has been localized previously in the mammalian cochlea at the light-microscopic level and in few reports by electron microscopy using either a preincubation procedure or the avidin-biotin reaction. Here we present results of the electron-microscopic analysis for postembedding immunoreactivity of synaptophysin in the cochlea of the guinea pig of LR-White-embedded samples. Strong synaptophysin immunoreactivity is located in the cytoplasm of the efferent nerve endings at the base of inner and outer hair cells. Besides this, some antibodies to synaptophysin were also identified in the cytoplasm of outer hair cells. To get more information about the cellular content of synaptophysin, the density of the immunoreaction per square micrometer was determined for the outer hair cells of the second turn of the cochlea counting the gold particles in numerous ultrathin sections. The role of synaptophysin identified in the cytoplasm of outer hair cells is discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-11-19 | ORL; journal for oto-rhino-laryngology and its related specialties |