An immunohistochemical study on the river lamprey retina.
The localization of structures immunoreactive to various polypeptides and proteins in the retina of the river lamprey (Lampetra japonica) was investigated by means of an indirect immunohistofluorescence method. In the majority of frozen sections, a subpopulation of amacrine cells showed the immunoreactivity (IR) to one of the examined antisera against corticotropin-releasing factor, glucagon, neuropeptide Y, somatostatin, visinin and 5-hydroxytryptamine, respectively. A few fibers in the inner plexiform layer were immunoreactive to cholecystokinin or substance P antiserum. The visinin-like IR was also found in two types of bipolar cells. The IR was positive in Müller cells against glutamine synthetase but not to glial fibrillary acidic protein. In some flat-mounted preparations, glucagon- and serotonin-like reactive amacrine cells and visinin-like immunoreactive bipolar cells (distally located) could be observed. The results obtained suggest that in the lamprey retina the cytoplasmic property of some cells is similar to, but that of others is different from, vertebrate retinal cells.[1]References
- An immunohistochemical study on the river lamprey retina. Negishi, K., Kiyama, H., Kato, S., Teranishi, T., Hatakenaka, S., Katayama, Y., Miki, N., Tohyama, M. Brain Res. (1986) [Pubmed]
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