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Comparative proteomic analysis of senescence in the freshwater cladoceran Daphnia pulex.
Comparative Biochemistry and Physiology B: Biochemistry & Molecular Biology ( IF 1.9 ) Pub Date : 2019-09-13 , DOI: 10.1016/j.cbpb.2019.110352
Mingqi Cai 1 , Zhiquan Liu 1 , Minghai Chen 2 , Meng Zhang 1 , Yang Jiao 1 , Qiang Chen 1 , Yunlong Zhao 3
Affiliation  

Cladocera are small freshwater crustaceans that have attracted considerable attention in recent years. They are commonly used for studying senescence. In this study, we used LC-MS/MS with eight-plex iTRAQ to perform a comparative proteomic analysis of senescence in Daphnia pulex. Of 3076 primordial proteins, 2325 were credible (the remaining were low-confidence proteins) and 247 significantly differentially expressed proteins (DEPs). Of the latter, 87, 91, and 69 DEPs were identified in the Day 15 vs. Day 5, Day 20 vs. Day 5, and Day 25 vs. Day 5 groups, respectively. Gene ontology enrichment analysis showed that oxidative damage may be the main cause of senescence in D. pulex. Using Kyoto Encyclopedia of Genes and Genomes pathway analysis, we found that the peroxisome pathway played an important role in aging. Our results suggest that D. pulex alleviates excessive oxidative damage by altering key enzymes involved in carbohydrate and protein metabolism.

中文翻译:

比较蛋白质组学分析淡水枝ado水蚤的衰老。

Cladocera是小型的淡水甲壳类动物,近年来引起了相当大的关注。它们通常用于研究衰老。在这项研究中,我们将LC-MS / MS与八重iTRAQ结合使用,对水蚤的衰老进行了蛋白质组学比较分析。在3076个原始蛋白质中,有2325个是可信的(其余为低置信度蛋白质),还有247个显着差异表达的蛋白质(DEP)。在后者中,分别在第15天与第5天,第20天与第5天,第25天与第5天的组中分别确定了87、91和69个DEP。基因本体富集分析表明,氧化损伤可能是D. pulex衰老的主要原因。使用《京都议定书》的基因和基因组百科全书途径分析,我们发现过氧化物酶体途径在衰老中起重要作用。我们的结果表明D.
更新日期:2019-09-13
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