Pro-1 regulates the lifespan of Caenorhabditis elegans through DAF-16
Online published: 2016-11-29
Supported by
National Natural Science Foundation of China, 81472758, 31170783
Objective·To observe the effects of pro-1 gene on the lifespan of Caenorhabditis elegans (C. elegans) and preliminary explore the molecular mechanisms. Methods·RNAi technique was used to intervene the expression of pro-1 gene in C. elegans. The lifespan of C. elegans with silent pro-1 was analyzed and changes in growth, development, motion, diet, and reproduction were detected. The molecular mechanisms of pro-1 to affect the lifespan were explored using RNAi technique, fluorescence localization technology, and RT-PCR. Results·The lifespan of silence group C. elegans was significantly increased by 14.58% after the expression of pro-1 intervented as compared with controls (P=0.002). DAF-16 translocated into nucleus in C. elegans of TJ356 strain after intervening the expression of pro-1 and mRNA expressions of downstream target genes such as old-1, sod-3, hsp-16.1, mtl-1 and ctl-2 were up-regulated. Conclusion·pro-1 prolongs the lifespan of C. elegans via promoting the translocation of DAF-16 into nucleus and up-regulating the mRNA expressions of downstream target genes.
Key words: Caenorhabditis elegans; pro-1; daf-16; lifespan
MAO Yu-qin , HAN San-feng , WANG Li-shun . Pro-1 regulates the lifespan of Caenorhabditis elegans through DAF-16[J]. Journal of Shanghai Jiao Tong University (Medical Science), 2016 , 36(10) : 1415 . DOI: 10.3969/j.issn.1674-8115.2016.10.003
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