Distribution of calcium-binding proteins in the chick visual system

Pfeiffer, Carolin; Britto, Luiz Roberto Giorgetti de

doi:10.1590/s0100-879x1997001100009

Cited by 20 publications

(13 citation statements)

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“…1C shows a section through the LM immunoreacted for PV. Consistent with previous reports (Pfeiffer & Britto, 1997;Heyers et al, 2008), PV was strongly expressed in neurons in nRt, triangularis (T), subpretectalis, and the optic tectum. Expression in the LM was not as intense, but numerous PV+ve cell bodies were present in LMl, as shown in the inset (Fig.…”

Section: Resultssupporting

confidence: 92%

“…The restricted expression of the calcium-binding proteins in neuronal populations in the central nervous system has been described in several species (e.g., Celio, 1990;Van Brederode et al, 1990;Resibois & Rogers, 1992;Pfeiffer & Britto, 1997;Pritz & Siadati, 1999). Calcium-binding proteins have numerous cellular functions (e.g., Kohr et al, 1991;Yamaguchi et al, 1991;Baimbridge et al, 1992;Schwaller et al, 2002;Schwaller, 2007Schwaller, , 2009), although their role from a systems perspective is not well understood.…”

Section: Discussionmentioning

confidence: 99%

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Expression of calcium-binding proteins in cerebellar- and inferior olivary-projecting neurons in the nucleus lentiformis mesencephali of pigeons

et al. 2009

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In the avian brain, the optokinetic response is controlled by two retinal-recipient nuclei: the nucleus of the basal optic root (nBOR) of the accessory optic system and the pretectal nucleus lentiformis mesencephali (LM). Although considered sister nuclei because of their similar response properties and function, there are both similarities and differences with respect to efferent projections and neurochemistry. Both nBOR and LM project to the cerebellum (Cb) directly as mossy fibers but also indirectly via the inferior olive (IO). In a previous report, we showed that the cerebellar- and inferior olivary-projecting neurons in nBOR of pigeons differentially express the calcium-binding proteins calretinin (CR) and parvalbumin (PV). Both CR and PV are expressed in the somata of LM neurons, although the latter is not as prevalent, and whether expression of CR and PV reflects cerebellar and IO projections is not known. In this report, by combining retrograde neuronal tracing from the Cb and IO with fluorescent immunohistochemistry, we examined the expression of these calcium-binding proteins in the pigeon LM. Half (52%) of the cerebellar-projecting neurons were CR+ve, but only 15% were PV+ve. Almost all (>95%) these PV+ve cells also expressed CR. In contrast, few of the IO-projecting neurons expressed CR or PV (

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Section: Resultssupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Expression of calcium-binding proteins in cerebellar- and inferior olivary-projecting neurons in the nucleus lentiformis mesencephali of pigeons

et al. 2009

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“…in S-100a and S-100b)”. In the current study, immunohistochemistry for this antibody reveals comparable staining patterns of parvalbumin in the chick brain as previously reported (Pfeiffer and Britto, 1997; Panicker et al, 2002; Wang et al, 2006). …”

Section: Methodssupporting

confidence: 90%

Heterogeneous organization and connectivity of the chicken auditory thalamus (Gallus gallus)

Wang

Zorio

Karten

2017

J of Comparative Neurology

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The auditory ascending system contains parallel pathways in vertebrate brains. In chickens (Gallus gallus), three pathways arise from nucleus laminaris (NL), nucleus angularis (NA), and regio intermedius (RI) in the brainstem, innervating three subdivisions of the nucleus mesencephalicus lateralis pars dorsalis (MLd) in the midbrain. The current study reveals the segregation of these pathways in their subsequent projections to the nucleus ovoidalis (Ov) in the thalamus. Based on cytoarchitecture and myelin distribution, we identified seven Ov subregions, including five neuronal clusters within the Ov proper, the nucleus semilunaris parovoidalis (SPO), and the circum-ovoidalis (cOv). Immunocytochemistry further revealed that a ventromedial cluster of the Ov proper (Ovvm) contains unique cell types expressing α8 subunit nicotinic acetylcholine receptor, while SPO and cOv are characterized with expression of calcitonin-gene-related peptide and cholecystokinin. Tract tracing studies demonstrated that Ovvm is a major target of the NL-recipient zone of MLd, while the RI-recipient zone of MLd predominantly projects to a ventrolateral cluster of the Ov proper. Afferent inputs to the remaining regions of the Ov proper mostly arise from the NA-recipient zone of MLd. SPO and cOv receive a projection from the surrounding areas of MLd, named the nucleus intercollicularis. Importantly, the Ov proper, SPO and cOv all project to the Field L2 in the forebrain, the avian auditory cortex. Taken together, these results demonstrate that the avian auditory thalamus is a structurally and functionally heterogeneous structure, implicating an important role in generating novel representations for specific acoustic features.

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“…All three calcium-binding proteins are known to be widely distributed in various subregions of mammalian amygdala (Pitkanen and Kemppainen 2002). The presence of calcium binding proteins has been typically exploited for the identification of functionally distinct neuronal subsets also in the avian brain (Gati et al 2014; Husband and Shimizu 2011; Pfeiffer and Britto 1997; Roberts et al 2002; Suarez et al 2006). The arcopallium harbors subsets of parvalbumin + , calbindin + and calretinin + neurons (Cornez et al 2015; Roberts et al 2002).…”

Section: Discussionmentioning

confidence: 99%

Multiple amygdaloid divisions of arcopallium send convergent projections to the nucleus accumbens and neighboring subpallial amygdala regions in the domestic chicken: a selective pathway tracing and reconstruction study

et al. 2016

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Retrograde tracing with choleratoxin B, injected into the nucleus accumbens (Ac) and bed nucleus of stria terminalis, lateral part (BSTL), yielded labeled perikarya in a ring-shaped area of arcopallium, including dorsal and hilar subdivisions, with a wedge-shaped node of dense accumulation in the amygdalopiriform area (APir). Also, the position of source neurons for this arcopallio-subpallial pathway was verified by anterograde tracing. Three subregions of arcopallium (amygdalopiriform, dorsal, hilar) were injected with dextran (10 kDa), and fibers and terminal fields were detected in Ac, BSTL and extended amygdala (EA). Most abundant projections to Ac arose from APir. The study enabled precise description of the main output fiber streams: the dorsal stream follows the dorsal border of arcopallium and, continuing in the ventral amygdalofugal tract, it traverses the EA and the BSTL before reaching the Ac. The ventral stream of fibers enters the EA along the ventral subpallial border and terminates in the basal nucleus and ventral pallidum. The course of the pathway was reconstructed in 3D. Retrogradely labeled arcopallial neurons were devoid of DARPP-32. DARPP-32 was present in the Ac but not the BSTL. No colocalization between the calcium binding proteins calbindin, parvalbumin and calretinin, and retrogradely labeled neurons was detected, despite a considerable territorial overlap. This finding further supports the excitatory nature of the arcopallial-accumbens pathway. Conjoint and convergent amygdalar input to EA, including BSTL, as well as to Ac subregions likely transmits fear and aggression related signals to both viscerolimbic (EA) and learned reward- and motivation-related (Ac) ventrobasal forebrain regions.Electronic supplementary materialThe online version of this article (doi:10.1007/s00429-016-1219-8) contains supplementary material, which is available to authorized users.

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Distribution of calcium-binding proteins in the chick visual system

Cited by 20 publications

References 17 publications

Expression of calcium-binding proteins in cerebellar- and inferior olivary-projecting neurons in the nucleus lentiformis mesencephali of pigeons

Expression of calcium-binding proteins in cerebellar- and inferior olivary-projecting neurons in the nucleus lentiformis mesencephali of pigeons

Heterogeneous organization and connectivity of the chicken auditory thalamus (Gallus gallus)

Multiple amygdaloid divisions of arcopallium send convergent projections to the nucleus accumbens and neighboring subpallial amygdala regions in the domestic chicken: a selective pathway tracing and reconstruction study

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