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Rag1 and Rag2 Gene Expressions Identify Lymphopoietic Tissues in Larvae of Rice-Field Eel (Monopterus albus)

文献类型: 外文期刊

作者: Liu, Yuchen 1 ; Jiang, Nan 1 ; Liu, Wenzhi 1 ; Zhou, Yong 1 ; Xue, Mingyang 1 ; Zhong, Qiwang 3 ; Li, Zhong 1 ; Fan, Yuding 1 ;

作者机构: 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China

2.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai 201306, Peoples R China

3.Jiangxi Agr Univ, Coll Biol Sci & Engn, Nanchang 330045, Jiangxi, Peoples R China

关键词: rice-field eel; Monopterus albus; lymphopoiesis tissues; rag1; rag2

期刊名称:INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES ( 影响因子:6.208; 五年影响因子:6.628 )

ISSN:

年卷期: 2022 年 23 卷 14 期

页码:

收录情况: SCI

摘要: In immature lymphocytes, recombination activating genes 1 and 2 are necessary for antigen receptor V (D) J recombination, representing immature lymphocyte biomarkers. Herein, we cloned and sequenced rice-field eel rag1 and rag2 genes. Their expressions in the thymus, liver, and kidney were significant from 0 days post hatching (dph) to 45 dph, peaking at 45 dph in these three tissues. In situ hybridization detected high rag1 and rag2 expressions in the liver, kidney, and thymus of rice-field eel from 2 to 45 dph, suggesting that multiple tissues of rice-field eel contain lymphocyte lineage cells and undergo lymphopoiesis. Tissue morphology was used to observe lymphopoiesis development in these three tissues. The thymus primordium began to develop at 2 dph, while the kidney and liver have generated. Our findings verified that the thymus is the primary lymphopoietic tissue and suggested that, in rice-field eel, lymphocyte differentiation also occurs in the liver and kidney.

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