Dietary restriction usually suppresses biosynthesis but activates catabolic pathways in animals.However,the short-term starvation enhances biosynthetic activities and promotes ribosomal biogenesis in adult Caenorhabdi...Dietary restriction usually suppresses biosynthesis but activates catabolic pathways in animals.However,the short-term starvation enhances biosynthetic activities and promotes ribosomal biogenesis in adult Caenorhabditis elegans.The mechanism underlying the processes remains largely unknown.Here,we find that the short-term starvation enhances the SL1 trans-splicing of translation-related genes in adult C.elegans by transcriptome analysis.The small nuclear RNA-activating protein complex(SNAPc)promotes SL RNA production and mediates starvation-induced trans-splicing.TOFU-5,a core factor in the upstream sequence transcription complex(USTC)essential for piRNA production,is also involved in the starvationinduced trans-splicing processes.Knocking down components of the SNAPc complex and tofu-5 extends worm survival under starvation conditions.Taken together,our study highlights the importance of SL transsplicing in the nutrition response and reveals a mechanism of the survival regulation by food deprivation via SNAPc and TOFU-5.展开更多
Objective:To investigate whether The small nuclear RNA activating complex polypeptide 3(SNAPC3)gene rs12093 polymorphism is associated with ischemic stroke(IS)and Traditional Chinese Medicine(TCM)syndromes of IS.Metho...Objective:To investigate whether The small nuclear RNA activating complex polypeptide 3(SNAPC3)gene rs12093 polymorphism is associated with ischemic stroke(IS)and Traditional Chinese Medicine(TCM)syndromes of IS.Methods:This study enrolled 774 patients with ischemic stroke(IS)and 793 normal controls.Massarray technology was used for genotyping.And genetic association analysis was estimated by PLINK program.Results:①SNAPC3 gene rs12093 polymorphism was significantly associated with the risk of ischemic stroke wind syndrome of IS[OR=0.76,95%CI(0.58-0.99),P=0.047 in dominant model)].②After adjusting age and gender,SNAPC3 gene rs12093 polymorphism and the score of ischemic stroke wind syndrome(Padj=0.037 in additive model;Padj=0.009 in recessive model),the correlation is statistically significant.③After adjusting age and gender,platelet(PLT)(Padj=0.024 in addiction model;Padj=0.039 in dominant model)and thrombin time(TT)(Padj=0.042 in dominant model)were significantly associated with rs12093 polymorphism in patients with ischemic stroke wind syndrome.Conclusion:SNAPC3 gene rs12093 polymorphism may affect the occurrence of ischemic stroke wind syndrome.展开更多
基金supported by grants from the National Key R&D Program of China (2019YFA0802600)the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB39010600)+3 种基金the National Natural Science Foundation of China (91940303, 31870812, 32070619, 31871300 and 31900434)the China Postdoctoral Science Foundation (2018M632542)the Anhui Natural Science Foundation (1808085QC82 and 1908085QC96)supported in part by the Fundamental Research Funds for the Central Universities.
文摘Dietary restriction usually suppresses biosynthesis but activates catabolic pathways in animals.However,the short-term starvation enhances biosynthetic activities and promotes ribosomal biogenesis in adult Caenorhabditis elegans.The mechanism underlying the processes remains largely unknown.Here,we find that the short-term starvation enhances the SL1 trans-splicing of translation-related genes in adult C.elegans by transcriptome analysis.The small nuclear RNA-activating protein complex(SNAPc)promotes SL RNA production and mediates starvation-induced trans-splicing.TOFU-5,a core factor in the upstream sequence transcription complex(USTC)essential for piRNA production,is also involved in the starvationinduced trans-splicing processes.Knocking down components of the SNAPc complex and tofu-5 extends worm survival under starvation conditions.Taken together,our study highlights the importance of SL transsplicing in the nutrition response and reveals a mechanism of the survival regulation by food deprivation via SNAPc and TOFU-5.
基金National Natural Science Foundation of China(No.81573756)National Natural Science Foundation of China(No.81473670)。
文摘Objective:To investigate whether The small nuclear RNA activating complex polypeptide 3(SNAPC3)gene rs12093 polymorphism is associated with ischemic stroke(IS)and Traditional Chinese Medicine(TCM)syndromes of IS.Methods:This study enrolled 774 patients with ischemic stroke(IS)and 793 normal controls.Massarray technology was used for genotyping.And genetic association analysis was estimated by PLINK program.Results:①SNAPC3 gene rs12093 polymorphism was significantly associated with the risk of ischemic stroke wind syndrome of IS[OR=0.76,95%CI(0.58-0.99),P=0.047 in dominant model)].②After adjusting age and gender,SNAPC3 gene rs12093 polymorphism and the score of ischemic stroke wind syndrome(Padj=0.037 in additive model;Padj=0.009 in recessive model),the correlation is statistically significant.③After adjusting age and gender,platelet(PLT)(Padj=0.024 in addiction model;Padj=0.039 in dominant model)and thrombin time(TT)(Padj=0.042 in dominant model)were significantly associated with rs12093 polymorphism in patients with ischemic stroke wind syndrome.Conclusion:SNAPC3 gene rs12093 polymorphism may affect the occurrence of ischemic stroke wind syndrome.
