College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea.
Department of Animal Science, College of Life Science, Sangji University, Wonju, Republic of Korea.
J Vet Med Sci. 2024 May 6;86(5):458-462. doi: 10.1292/jvms.23-0430. Epub 2024 Mar 20.
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.
关于负责信息素感知的犁鼻器（VNO）的神经元结构，人们知之甚少，这种受体器官存在于羊驼（Vicugna pacos）中。本研究旨在确定神经元成分的定位，包括蛋白基因产物 9.5（PGP 9.5），一种泛神经元标记物，嗅觉标记蛋白（OMP），一种成熟嗅觉受体细胞的标记物，以及磷脂酶 Cβ2（PLC-β2），一种孤束化学感受器细胞（SCC）的标记物，在 VNO 中。OMP 被鉴定为犁鼻感觉上皮（VSE）中的受体细胞，而 PGP 9.5 和 PLC-β2 则定位于 VSE 和犁鼻非感觉上皮中。总的来说，这些结果表明，羊驼的 VNO 拥有 SCC 和嗅觉受体细胞，这些细胞可以识别有害物质和信息素。
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