Electron microscopic demonstration of tyrosine hydroxylase-immunoreactive interplexiform cells in the lamprey retina

Dalil-Thiney, Najet; Versaux‐Botteri, Claudine; Nguyen‐Legros, Jeanine

doi:10.1016/0304-3940(96)12511-8

Cited by 5 publications

(3 citation statements)

References 23 publications

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“…Interplexiform cells are a particular type of amacrine cell projecting to both plexiform layers (Dowling and Ehinger, 1975). These cells have been described as dopaminergic in the retinae of lampreys (Dalil‐Thiney et al, 1996), fishes (Van Haesendonck et al, 1993), amphibians (Vigh et al, 2000), lizards (Lanuza et al, 1996), birds (Dkhissi et al, 1993), and mammals (Gustincich et al, 1999). They interconnect the inner and outer plexiform layers (Djamgoz and Wagner, 1992) and possess GABA receptors (Gustincich et al, 1999), a finding indicating that they may act under GABA modulation.…”

Section: Discussionmentioning

confidence: 99%

γ‐Aminobutyric acid‐synthesizing cells in the retina of the chameleon Chamaeleo chameleon

Bennis

Versaux‐Botteri

Repérant

et al. 2003

J of Neuroscience Research

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Antibodies directed against gamma-aminobutyric acid (GABA) and L-glutamic acid decarboxylases 65 and 67 kDa (GAD65 and -67) were used to study the GABAergic cell populations of the chameleon retina. GABA immunoreactivity was found in the two main types of retinal interneurons, amacrine and horizontal cells. Amacrine, displaced amacrine, and intra- and interplexiform cells displayed the strongest GABA immunoreactivity of all the retinal cell types. Horizontal cells formed a continuous GABA-immunoreactive cell layer lying against the outermost portion of the inner nuclear layer. In contrast to previous studies (Quesada et al. [1996] Cell Biol. Int. 20:395-400; [1999] Eur. J. Anat. 3:13-25), the present results demonstrate that the horizontal cells of the chameleon retina are GABA immunoreactive and that a subpopulation of these is immunolabelled by an antibody against GAD65. These results indicate that GABAergic synaptic transmission plays a key role in the outer plexiform layer of the vertebrate retina.

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Section: Discussionmentioning

confidence: 99%

γ‐Aminobutyric acid‐synthesizing cells in the retina of the chameleon Chamaeleo chameleon

Bennis

Versaux‐Botteri

Repérant

et al. 2003

J of Neuroscience Research

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“…The major retinal amino acid neurotransmitters, glutamate, γ-aminobutyric acid (GABA) and glycine are present in the adult lamprey retina and show similar distribution patterns to other vertebrate retinae [22]. Other molecules such as dopamine and serotonin have also been detected although their role in the lamprey retina is unclear [23], [24]. Overall, current data suggests that the lamprey can provide clues to the evolution of the visual and nervous systems of gnathostome vertebrates.…”

Section: Introductionmentioning

confidence: 93%

Retinal Amino Acid Neurochemistry of the Southern Hemisphere Lamprey, Geotria australis

et al. 2013

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Lampreys are one of the two surviving groups of the agnathan (jawless) stages in vertebrate evolution and are thus ideal candidates for elucidating the evolution of visual systems. This study investigated the retinal amino acid neurochemistry of the southern hemisphere lamprey Geotria australis during the downstream migration of the young, recently-metamorphosed juveniles to the sea and during the upstream migration of the fully-grown and sexually-maturing adults to their spawning areas. Glutamate and taurine were distributed throughout the retina, whilst GABA and glycine were confined to neurons of the inner retina matching patterns seen in most other vertebrates. Glutamine and aspartate immunoreactivity was closely matched to Müller cell morphology. Between the migratory phases, few differences were observed in the distribution of major neurotransmitters i.e. glutamate, GABA and glycine, but changes in amino acids associated with retinal metabolism i.e. glutamine and aspartate, were evident. Taurine immunoreactivity was mostly conserved between migrant stages, consistent with its role in primary cell functions such as osmoregulation. Further investigation of glutamate signalling using the probe agmatine (AGB) to map cation channel permeability revealed entry of AGB into photoreceptors and horizontal cells followed by accumulation in inner retinal neurons. Similarities in AGB profiles between upstream and downstream migrant of G. australis confirmed the conservation of glutamate neurotransmission. Finally, calcium binding proteins, calbindin and calretinin were localized to the inner retina whilst recoverin was localized to photoreceptors. Overall, conservation of major amino acid neurotransmitters and calcium-associated proteins in the lamprey retina confirms these elements as essential features of the vertebrate visual system. On the other hand, metabolic elements of the retina such as neurotransmitter precursor amino acids and Müller cells are more sensitive to environmental changes associated with migration.

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“…In the lamprey retina catecholamine cells have been shown to be present (DeMiguel and Wagner, 1990) and it is known that light activates tyrosine hydroxylase and, thus, dopaminergic neurons, in the teleost retina (Deany, 1991). That dopaminergic cells of the lamprey retina could be interplexiform cells has recently been investigated by and Dalil-Thiney et al (1996).…”

Section: Effects Of the Photocyclementioning

confidence: 99%

Review of larval and postlarval eye ultrastructure in the lamprey (cyclostomata) with special emphasis onGeotria australis (gray)

Meyer‐Rochow

Stewart

1996

Microsc. Res. Tech.

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The literature dealing with the lateral eye in lampreys is briefly reviewed here. While there appears to be no longer much doubt that the short and long photoreceptor cells in the lamprey eye correspond to rods and cones, questions of dark/light adaptational changes, the nature of visual pigments, and the roles of retinal serotonin and melatonin need to be re‐addressed. Eyes of the larval and postlarval (“macrophthalmia”) stages of the lamprey Geotria australis were examined by electron microscopy and it was found that the larval retina is largely undifferentiated except for a small central zone surrounding the optic nerve head. The retina of the postlarval stage is fully differentiated and the photoreceptor outer segments undergo renewal, which appears to involve the retinal pigment epithelium (RPE). The distribution of larval RPE and choroidal pigments, postlarval ganglion cells, and the orientation of scleral collagen are unusual for vertebrates. No obvious positional or size differences of any retinal cell type were apparent between day‐ and night‐fixed specimens. © 1996 Wiley‐Liss, Inc.

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Electron microscopic demonstration of tyrosine hydroxylase-immunoreactive interplexiform cells in the lamprey retina

Cited by 5 publications

References 23 publications

γ‐Aminobutyric acid‐synthesizing cells in the retina of the chameleon Chamaeleo chameleon

γ‐Aminobutyric acid‐synthesizing cells in the retina of the chameleon Chamaeleo chameleon

Retinal Amino Acid Neurochemistry of the Southern Hemisphere Lamprey, Geotria australis

Review of larval and postlarval eye ultrastructure in the lamprey (cyclostomata) with special emphasis onGeotria australis (gray)

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