Immunohistochemical and lectin histochemical studies on the developing olfactory organs of fetal camel

Ibrahim, Dalia; Taniguchi, Kazumi; Yamamoto, Yoshio; Taniguchi, Kazuyuki; Nakamuta, Nobuaki

doi:10.1002/jemt.22517

Cited by 4 publications

(4 citation statements)

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“…This is the first immunohistological evaluation of the alpaca VNO. The morphological characteristics of the VNO in the alpaca are similar to those in other ruminants and camelids, such as sheep [5,17], goats [19,22], cattle [20], and camels [6,7,9]. The histological features of the alpaca VNO, including sensory and non-sensory epithelia, blood vessels, and vomeronasal gland acini, corresponded closely with those of sheep [5] and one-humped camel [7].…”

supporting

confidence: 64%

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Histological evaluation of the alpaca (<i>Vicugna pacos</i>) vomeronasal organ

HONG,

AHN,

MOON

et al. 2024

The Journal of Veterinary Medical Science

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Little is known about the neuronal structure of the vomeronasal organ (VNO), a receptor organ responsible for pheromone perception, in the alpaca (Vicugna pacos). This study was performed to determine the localization of neuronal elements, including protein gene product 9.5 (PGP 9.5), a pan-neuronal marker, olfactory marker protein (OMP), a marker of mature olfactory receptor cells, and phospholipase C beta 2 (PLC-β2), a marker of solitary chemoreceptor cells (SCCs), in the VNO. OMP was identified in receptor cells of the vomeronasal sensory epithelium (VSE), while PGP 9.5 and PLC-β2 were localized in both the VSE and vomeronasal non-sensory epithelium. Collectively, these results suggested that the alpaca VNO possesses SCCs and olfactory receptor cells, which recognize both harmful substances and pheromones.

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confidence: 64%

“…The cellular components of the VNO from Camelus dromedaries [ 6 , 7 ], in the family Camelidae, have been reported, including PLC-β2-positive cells in the VSE and VNSE. In the present study, we found SCCs positive for PLC-β2 in both the sensory and non-sensory epithelium.…”

mentioning

confidence: 99%

Histological evaluation of the alpaca (<i>Vicugna pacos</i>) vomeronasal organ

HONG,

AHN,

MOON

et al. 2024

The Journal of Veterinary Medical Science

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“…However, there have been so far published only a little reports and details of morphogenesis remain unknown (6). There were several papers discussed the development of the VNO in rabbit (7,8), rat (9), mouse (10), hamster (11), pig (12)(13)(14), mammals (15), primates (16), human (17)(18)(19), bovine (20), goat (21), camel (22), and domestic animals (23). The aim of this study was to categorize, define and demonstrate the normal explaining of the onset time of first appearance and origin as well as developmental changes of VNO of the rabbit and its allied structures.…”

Section: Introductionmentioning

confidence: 99%

Prenatal Development of the Vomeronasal Organ in Rabbit

ALomaisi¹,

El-Ghazali²,

Nosseur³

et al. 2019

SVR

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The vomeronasal organ (VNO) is the peripheral receptors, with the ability to detect pheromones, and so it has a role in social behavior, sexual reactions and reproduction. The aim of this study was to designing, categorize, define and demonstrate the normal explaining of the onset time of first appearance and origin as well as developmental changes of vomeronasal organ of the rabbit and its allied structures. This study was carried out on 116 rabbit embryos and fetuses of both sexes. The specimens were obtained, from 14 normal and apparently healthy adult female rabbits. At days (D) 9-11 of pregnancy the nasal placode was invaginated to form the nasal (olfactory) pits. The primordia of the VNO was formed at the ventromedial area of this nasal pit. At D13, the VNO appeared as bilateral un-differentiated epithelial thickenings of the rostroventral part of nasal septum. At D14, the dorsomedial part of the epithelium was about a twice as thick as its ventrolateral part. At D16the VNO opened into the nasal cavity the miniature VNO nerve fascicles were appeared. At D18, VNO immature glands appeared in the dorsolateral part of the VNO the chondral plate was differentiated into chondroblasts. The lumen of the VNO was extremely increased in wide and closed to be oval lumen. At D20, the rostral opening of VNO duct opened directly into the floor of nasal cavity. The medial wall was thicker and had about 8-10 layers of stratified columnar and the lateral one consisted of 3-4 pseudostratified columnar cell layer. At D22, the of acini of the VNO glands determined at the dorsal commissure of the VNO duct. At D28, the lumen was lined by a thick medial mucosa with stratified olfactory like epithelium and thin ventrolateral respiratory epithelium.

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“…Lectins are nonimmune proteins that bind to glycoconjugates. They are chiefly specific to the terminal carbohydrates of sugar chains (Cook, ; Damjanov, ) and are major investigative tool for the study of soluble and cellular glycoconjugates (Ibrahim et al, ; Ibrahim, Taniguchi, Yamamoto, Taniguchi, & Nakamuta, ; Nakamuta, Yokosuka, Taniguchi, Yamamoto, & Nakamuta, ).…”

Section: Introductionmentioning

confidence: 99%

Comparative histochemical analysis of glycoconjugates in the nasal vestibule of camel and sheep

Ibrahim

Nakamuta

2018

Microscopy Res & Technique

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While Corriedale sheep survive in a wide range of climates, which prevents them to specialize for one climatic condition only, dromedary camels strictly adapted to desert areas. This demands more adaptive mechanisms to hot, dry conditions in camels than in sheep. Being the entrance of the nasal cavity, nasal vestibule is subjected to various environmental stressors. A protective way is the lining epithelium which is cornified in camel, but not in sheep. Mucus nasal secretions also play a key role in the protection of underlyings. Additionally, arterio-venous anastomosis is present in the lamina propria of the nasal vestibule of camel. In the present paper, sugar residues in the nasal vestibule of camel were analyzed and compared with those of sheep using 14 types of lectins to explore the distribution of glycoconjugates that may help the function of camel nasal vestibule in desert environment. In camel, none of the lectins could label the basal cells of the vestibular epithelium, although the basal cells reacted with six lectins in sheep. In camel, LEL and RCA-120 markedly labeled the luminal surface. WGA, DBA, SBA, and VVA produced marked intensities on the luminal surface in sheep. The mucous glands reacted with six lectins: WGA, s-WGA, VVA, PNA, PHA-E, and PHA-L in camel, while all lectins used except s-WGA and PHA-E reacted in the sheep. In summary, great differences are observed in the glycoconjugate expression between camel and sheep. This suggests that these glycoconjugate are related to camel's tolerance for environmental stressors.

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Immunohistochemical and lectin histochemical studies on the developing olfactory organs of fetal camel

Cited by 4 publications

References 30 publications

Histological evaluation of the alpaca (<i>Vicugna pacos</i>) vomeronasal organ

Histological evaluation of the alpaca (<i>Vicugna pacos</i>) vomeronasal organ

Prenatal Development of the Vomeronasal Organ in Rabbit

Comparative histochemical analysis of glycoconjugates in the nasal vestibule of camel and sheep

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