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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41170

Title: Lymphocyte antigen 75 (Ly75/CD205) is a surface marker on mitotic germ cells in rainbow trout
Authors: Kazue Nagasawa
Shinya Shikina
Yutaka Takeuchi
Goro Yoshizaki
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Keywords: testis
cell surface marker
developmental biology
EST
fish
flow cytometry
germ cell transplantation
Ly75/CD205
mitotic germ cells
oogonia
primordial germ cells
rainbow trout
spermatogenesis
spermatogonia
Date: 2010-10
Issue Date: 2017-02-09T08:14:23Z
Publisher: Biology of Reproduction
Abstract: Abstract: In mammals, several cell surface molecular markers have been characterized in order to identify the mitotic germ cells. However, little is known in fish about their cell surface antigen. In this study, we identified lymphocyte antigen 75 (Ly75/CD205) as a germ cell-specific cell surface marker by combination expressed sequence tag analysis of purified type A spermatogonia (A-SG) from immature testis, in silico prediction of membrane proteins, and expression studies. The ly75 transcripts were abundant in the testis and gills, and weak signals were detected in the head kidney and brain. In addition, ly75 mRNA was predominantly localized in the primordial germ cells of newly hatched embryos, A-SG in testis, oogonia, and chromatin nucleolus-stage oocytes in the ovary. In contrast, ly75 mRNA was not detected in spermatocytes, spermatids, spermatozoa, vitellogenic oocytes, or gonadal somatic cells from either males or females. The expression profile of Ly75 protein was similar to that of the mRNA. Furthermore, identification of various fish homologs of ly75 confirmed that their amino acid sequences are well conserved. Therefore, Ly75 may be appropriate for use as a versatile cell surface marker for mitotic germ cells in fish.
Relation: 83(4)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41170
Appears in Collections:[海洋環境與生態研究所] 期刊論文

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