Localization of uncoupling protein 1 (UCP-1) in the sebaceous gland of the dorsal region in the Sunda porcupine (Hystrix
javanica) |
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Authors: | Andhika Yudha PRAWIRA Savitri NOVELINA Wartika Rosa FARIDA Huda Shalahudin DARUSMAN Katsuhiko WARITA Srihadi AGUNGPRIYONO Yoshinao Z HOSAKA |
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Institution: | 1)Department of Anatomy, Physiology, and Pharmacology, Faculty of Veterinary Medicine, IPB University, Bogor 16680, Indonesia;2)Zoology Division, Research Center for Biology, Indonesian Institute of Sciences, Cibinong 16911, Indonesia;3)Primate Research Center, IPB University, Bogor 16151, Indonesia;4)Laboratory of Veterinary Anatomy, Faculty of Agriculture, Tottori University, Tottori 680-8553 Japan |
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Abstract: | Uncoupling protein 1 (UCP-1) was believed to be an exclusive protein found in the brown adipose tissue of small rodents and humans; however, recent studies show that the expression of UCP-1 protein has been found in the sebaceous glands of the mouse tail and human skin. There are a few reports about the presence of UCP-1 in the sebaceous glands of other rodents, such as the Sunda porcupine (Hystrix javanica), a wild spiny rodent commonly found in Indonesia with a large sebaceous gland. The aim of this study was to identify the presence of UCP-1 in the sebaceous glands on the skin of the Sunda porcupine. The skin from three regions (thoracodorsal, lumbosacral and apex caudal) of eight adult Sunda porcupines was used to detect UCP-1-immunopositive cells through immunohistochemistry. All three regions were found immunopositive to anti-UCP-1 antibody in the sebaceous gland of quill and hair follicles, and the epidermal layer in quill and hair follicles with various intensities. The result of immunohistochemistry revealed that the thoracodorsal and apex caudal region was the most intense immunoreaction followed by the lumbosacral region. These findings proved that the presence of UCP-1 was also identified in the sebaceous glands of other rodent (Hystrix javanica) and regions of the body, which has not been reported previously. |
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Keywords: | quill follicle sebocyte sunda porcupine uncoupling protein 1 |
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