Cellular stress response pathways and ageing: intricate molecular relationships
TLDR
The molecular mechanisms that link ageing to main stress response pathways are surveyed, and how each pathway contributes to modulate the ageing process is discussed.Abstract:
Ageing is driven by the inexorable and stochastic accumulation of damage in biomolecules vital for proper cellular function. Although this process is fundamentally haphazard and uncontrollable, senescent decline and ageing is broadly influenced by genetic and extrinsic factors. Numerous gene mutations and treatments have been shown to extend the lifespan of diverse organisms ranging from the unicellular Saccharomyces cerevisiae to primates. It is becoming increasingly apparent that most such interventions ultimately interface with cellular stress response mechanisms, suggesting that longevity is intimately related to the ability of the organism to effectively cope with both intrinsic and extrinsic stress. Here, we survey the molecular mechanisms that link ageing to main stress response pathways, and mediate age‐related changes in the effectiveness of the response to stress. We also discuss how each pathway contributes to modulate the ageing process. A better understanding of the dynamics and reciprocal interplay between stress responses and ageing is critical for the development of novel therapeutic strategies that exploit endogenous stress combat pathways against age‐associated pathologies.read more
Citations
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The oyster genome reveals stress adaptation and complexity of shell formation
Guofan Zhang,Xiaodong Fang,Ximing Guo,Li Li,Ruibang Luo,Fei Xu,Pengcheng Yang,Linlin Zhang,Xiaotong Wang,Haigang Qi,Zhiqiang Xiong,Huayong Que,Yinlong Xie,Peter W. H. Holland,Jordi Paps,Yabing Zhu,Fucun Wu,Yuanxin Chen,Jiafeng Wang,Chunfang Peng,Jie Meng,Lan Yang,Jun Liu,Bo Wen,Na Zhang,Zhiyong Huang,Qihui Zhu,Yue Feng,Andrew S. Mount,Dennis Hedgecock,Zhe Xu,Yunjie Liu,Tomislav Domazet-Lošo,Yishuai Du,Xiaoqing Sun,Shoudu Zhang,Binghang Liu,Peizhou Cheng,Xuanting Jiang,Juan Li,Dingding Fan,Wei Wang,Wenjing Fu,Tong Wang,Bo Wang,Jibiao Zhang,Zhiyu Peng,Yingxiang Li,Na Li,Jinpeng Wang,Maoshan Chen,Yan He,Fengji Tan,Xiaorui Song,Qiumei Zheng,Ronglian Huang,Hailong Yang,Du Xuedi,Li Chen,Mei Yang,Patrick M. Gaffney,Shan Wang,Longhai Luo,Zhicai She,Yao Ming,Huang Wen,Shu Zhang,Baoyu Huang,Yong Zhang,Tao Qu,Peixiang Ni,Guoying Miao,Junyi Wang,Qiang Wang,Christian E. W. Steinberg,Haiyan Wang,Ning Li,Lumin Qian,Guojie Zhang,Yingrui Li,Huanming Yang,Xiao Liu,Jian Wang,Ye Yin,Jun Wang +84 more
TL;DR: The sequencing and assembly of the oyster genome using short reads and a fosmid-pooling strategy and transcriptomes of development and stress response and the proteome of the shell are reported, showing that shell formation in molluscs is more complex than currently understood and involves extensive participation of cells and their exosomes.
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