“Type III” cells of rat taste buds: Immunohistochemical and ultrastructural studies of neuron-specific enolase, protein gene product 9.5, and serotonin

2001 ◽  
Vol 440 (1) ◽  
pp. 97-108 ◽  
Author(s):  
Cindy L. Yee ◽  
Ruibiao Yang ◽  
Bärbel Böttger ◽  
Thomas E. Finger ◽  
John C. Kinnamon
2012 ◽  
Vol 49 (5) ◽  
pp. 834-838 ◽  
Author(s):  
A. Durkes ◽  
M. Garner ◽  
C. Juan-Sallés ◽  
J. Ramos-Vara

This study evaluates the immunoreactivity of 12 sex cord–stromal tumors of nonhuman primates (11 granulosa cell tumors and 1 luteoma). The markers selected are used in the characterization of gonadal tumors in dogs and other species, including cytokeratins AE1/AE3, GATA-4, inhibin-α, neuron-specific enolase, protein gene product 9.5, and vimentin. A normal nonhuman primate ovary was used as a control and to optimize immunolabeling. Staining was graded as follows: 0 (nonstaining), 1+ (< 10% positive cells), 2+ (10%–50% positive cells), and 3+ (> 50% positive cells). Calretinin, GATA-4, neuron-specific enolase, and vimentin were the most consistently expressed markers (12 of 12). Cytokeratins AE1/AE3 were also consistently expressed (11 of 12). Inhibin-α and protein gene product 9.5 were expressed in 8 and 10 sex cord–stromal tumors, respectively. Results indicate that immunoreactivity of nonhuman primate sex cord–stromal tumors is similar to that observed in other species and that calretinin, GATA-4, and neuron-specific enolase are the most consistently expressed markers in nonhuman primate sex cord–stromal tumors.


Author(s):  
M-C. Madekurozwa

The present study investigated the distribution of nerves in the oviduct of the sexually immature ostrich. The presence of protein gene product 9.5, neurofilament protein and neuron specific enolase nerve fibres were demonstrated in the infundibulum, magnum, isthmus, shell gland and vagina. Nerve fibres containing protein gene product 9.5, neuron specific enolase and neurofilament protein were particularly numerous in the tunica muscularis and intermuscular connective tissue areas of the shell gland and vagina. The presence of a large number of nerves in these oviductal regions is probably important in the coordination of muscle contraction. An interesting finding of the study was the presence of protein gene product 9.5 and neuron specific enolase immunopositive nerve fibres in the walls of blood vessels. It is likely that these nerves are autonomicin nature and play a role in the regulation of blood flow. This study has shown the presence of an extensive neural network in the oviduct of the ostrich. In addition, the results of the investigation have shown that the neuronal markers protein gene product 9.5, neurofilament protein and neuron specific enolase can be used to demonstate nerve fibres in the ostrich.


1990 ◽  
Vol 268 (2) ◽  
pp. 521-524 ◽  
Author(s):  
I N Day ◽  
L J Hinks ◽  
R J Thompson

Database search using a bovine thymus ubiquitin C-terminal hydrolase sequence indicated 54% sequence identity with the abundant human neuron-specific protein gene product 9.5 (PGP9.5), which was then shown to possess the same activity [Wilkinson, Lee, Deshpande, Duerksen-Hughes, Boss & Pohl (1989) Science 246, 670-673]. A yeast counterpart of the enzyme is also known. The human PGP9.5 gene, described here, spans 10 kb, contains nine exons and displays 5′ features some common to many genes and some common with neurofilament neuron-specific enolase and Thy-1-antigen gene 5′ regions.


2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
G. Krafsur ◽  
E. J. Ehrhart ◽  
J. Ramos-Vara ◽  
G. Mason ◽  
F. Sarren ◽  
...  

The most common cardiac tumors of heart muscle are rhabdomyomas, solitary or multiple benign tumors of striated muscle origin. While cardiac rhabdomyomas are well described in human medical literature, limited information depicting the occurrence of cardiac rhabdomyomas in veterinary species exists. A case of multiple firm white nonencapsulated nodules in the heart of a bearded seal is described. Microscopic findings included cytoplasmic vacuolization with formation of spider cells, glycogen vacuoles, and striated myofibrils. These cells expressed immunoreactivity for neuron-specific enolase and protein gene product 9.5, a marker for neuronal tissue and Purkinje fiber cells. Immunoreactivity for protein gene product 9.5 along with other microscopic findings substantiates Purkinje fiber cell origin of the cardiac rhabdomyoma in the bearded seal and use of the termpurkinjeomato describe this lesion.


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