Publication: Cells producing insulin-like androgenic gland hormone of the giant freshwater prawn, Macrobrachium rosenbergii, proliferate following bilateral eyestalk-ablation
Issued Date
2011-01-01
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ISSN
15323072
00408166
00408166
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2-s2.0-79960221505
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Mahidol University
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SCOPUS
Bibliographic Citation
Tissue and Cell. Vol.43, No.3 (2011), 165-177
Suggested Citation
Ittipon Phoungpetchara, Yotsawan Tinikul, Jaruwan Poljaroen, Charoonroj Chotwiwatthanakun, Rapeepun Vanichviriyakit, Morakot Sroyraya, Peter J. Hanna, Prasert Sobhon Cells producing insulin-like androgenic gland hormone of the giant freshwater prawn, Macrobrachium rosenbergii, proliferate following bilateral eyestalk-ablation. Tissue and Cell. Vol.43, No.3 (2011), 165-177. doi:10.1016/j.tice.2011.02.001 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/11615
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Title
Cells producing insulin-like androgenic gland hormone of the giant freshwater prawn, Macrobrachium rosenbergii, proliferate following bilateral eyestalk-ablation
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Abstract
We found that the androgenic gland (AG) of Macrobrachium rosenbergii possesses three cell types. Type I cells are small polygonal shaped-cells (13.4. μm in diameter), stain strongly with hematoxylin-eosin (H & E), have abundant multilayered rough endoplasmic reticulum (rER), and nuclei containing mostly heterochromatin. Type II cells are slightly larger (18.6. μm in diameter), stain lightly with H & E, have rER with dilated cisternae, and nuclei containing mostly euchromatin. Type III cells (previously undescribed) are similar in size and shape to type I cells, but the cytoplasm is unstained and they have a high amount of smooth endoplasmic reticulum (sER) and mitochondria with tubular cristae. Bilateral eyestalk-ablation resulted in AG hypertrophy with a proliferation and predominance of type I cells as determined by bromodeoxyuridine (BrdU) assays. Expression of insulin-like androgenic gland hormone (Mr-IAG), determined by immunohistochemistry, was weak in type I cells, strong in type II cells of both the intact and eyestalk-ablated, and negative in type III cells. It was also detected in spermatogonia, nurse cells, and epithelium lining of the spermatic duct. The function of Mr-IAG in these tissues is yet to be elucidated but the distribution implies a strong role in male reproduction. © 2011 Elsevier Ltd.