Ribbon Synapses Formed at the Axon of the Calbindin-Immunoreactive ON Cone Bipolar Cell in OFF Sublamina of the Inner Plexiform Layer in the Rabbit Retina (토끼 망막에서 칼빈딘 면역반응성 ON 원뿔두극세포의 속얼기층 OFF 아층판에서의 리본연접)

구태형; 김홍림; 전지현; 정어진; 천명훈; 문정일; 김인범

doi:10.11637/aba.2011.24.4.195

Ribbon Synapses Formed at the Axon of the Calbindin-Immunoreactive ON Cone Bipolar Cell in OFF Sublamina of the Inner Plexiform Layer in the Rabbit Retina

Anatomy & Biological Anthropology
Abbr : Anat Biol Anthropol
2011, 24(4), pp.195~201
DOI : 10.11637/aba.2011.24.4.195
Publisher : 대한체질인류학회
Research Area : Medicine and Pharmacy > Anatomy

구태형 ¹, 김홍림 ², 전지현 ², 정어진 ², 천명훈 ², 문정일 ², 김인범 ²

¹가톨릭대학교
²가톨릭대학교

Accredited

ABSTRACT

Some retinal neurons, including intrinsically photosensitive retinal ganglion cells have their dendrites stratified in sublamina a of the inner plexiform (IPL), the OFF sublayer, but paradoxically show light-driven ON electrophysiological responses. In order to understand the mechanism on this paradoxical response, by using immunoelectron microscopy with a specific antibody against calbindin, we examined the synaptic connections of the calbindin-immunoreactive ON cone bipolar cell of the rabbit retina, which is thought to make the ribbon synapse in sublamina a of the IPL. The ribbon synapses in sublamina a by calbindin-immunoreactive ON cone bipolar cells were mainly found at the border between the inner nuclear layer and the IPL. Interestingly, the output targets at these ribbon synapses turned out as monads, and multiple synaptic ribbons were engaged in each synapse. These findings were different from those at the conventional ribbon synapse formed by calbindin-immunoreactive ON cone bipolar axon terminals. Thus, these findings may be the characteristics of the calbindin-immunoreactive ON cone bipolar ribbon synapse in sublamina a and can be used to classify the synapse in the retinal circuit research.

KEYWORDS

ON cone bipolar cell, Ribbon synapse, Synaptic circuitry, Electron microscopy, Rabbit retina

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* References for papers published after 2023 are currently being built.

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Anatomy & Biological Anthropology 2023 KCI Impact Factor : 0.33

Ribbon Synapses Formed at the Axon of the Calbindin-Immunoreactive ON Cone Bipolar Cell in OFF Sublamina of the Inner Plexiform Layer in the Rabbit Retina

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Anatomy & Biological Anthropology 2023 KCI Impact Factor : 0.33

Ribbon Synapses Formed at the Axon of the Calbindin-Immunoreactive ON Cone Bipolar Cell in OFF Sublamina of the Inner Plexiform Layer in the Rabbit Retina

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