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Sexually dimorphic role of oxytocin in medaka mate choice 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (9) : 4802-4808
作者:  Yokoi, Saori;  Naruse, Kiyoshi;  Kamei, Yasuhiro;  Ansai, Satoshi;  Kinoshita, Masato;  Mito, Mari;  Iwasaki, Shintaro;  Inoue, Shuntaro;  Okuyama, Teruhiro;  Nakagawa, Shinichi;  Young, Larry J.;  Takeuchi, Hideaki
收藏  |  浏览/下载:19/0  |  提交时间:2020/05/13
sexual preference  mate guarding  social recognition  genome editing  
An intestinal zinc sensor regulates food intake and developmental growth 期刊论文
NATURE, 2020, 580 (7802) : 263-+
作者:  Wu, Thomas D.;  39;Gorman, William E.
收藏  |  浏览/下载:35/0  |  提交时间:2020/07/03

Hodor, an intestinal zinc-gated chloride channel, controls systemic growth in Drosophila by promoting food intake and by modulating Tor signalling and lysosomal homeostasis within enterocytes.


In cells, organs and whole organisms, nutrient sensing is key to maintaining homeostasis and adapting to a fluctuating environment(1). In many animals, nutrient sensors are found within the enteroendocrine cells of the digestive system  however, less is known about nutrient sensing in their cellular siblings, the absorptive enterocytes(1). Here we use a genetic screen in Drosophila melanogaster to identify Hodor, an ionotropic receptor in enterocytes that sustains larval development, particularly in nutrient-scarce conditions. Experiments in Xenopus oocytes and flies indicate that Hodor is a pH-sensitive, zinc-gated chloride channel that mediates a previously unrecognized dietary preference for zinc. Hodor controls systemic growth from a subset of enterocytes-interstitial cells-by promoting food intake and insulin/IGF signalling. Although Hodor sustains gut luminal acidity and restrains microbial loads, its effect on systemic growth results from the modulation of Tor signalling and lysosomal homeostasis within interstitial cells. Hodor-like genes are insect-specific, and may represent targets for the control of disease vectors. Indeed, CRISPR-Cas9 genome editing revealed that the single hodor orthologue in Anopheles gambiae is an essential gene. Our findings highlight the need to consider the instructive contributions of metals-and, more generally, micronutrients-to energy homeostasis.


  
The promise and challenge of therapeutic genome editing 期刊论文
NATURE, 2020, 578 (7794) : 229-236
作者:  Zhong, Suijuan;  Ding, Wenyu;  Sun, Le;  Lu, Yufeng;  Dong, Hao;  Fan, Xiaoying;  Liu, Zeyuan;  Chen, Ruiguo;  Zhang, Shu;  Ma, Qiang;  Tang, Fuchou;  Wu, Qian;  Wang, Xiaoqun
收藏  |  浏览/下载:61/0  |  提交时间:2020/07/03

Genome editing, which involves the precise manipulation of cellular DNA sequences to alter cell fates and organism traits, has the potential to both improve our understanding of human genetics and cure genetic disease. Here I discuss the scientific, technical and ethical aspects of using CRISPR (clustered regularly interspaced short palindromic repeats) technology for therapeutic applications in humans, focusing on specific examples that highlight both opportunities and challenges. Genome editing is-or will soon be-in the clinic for several diseases, with more applications under development. The rapid pace of the field demands active efforts to ensure that this breakthrough technology is used responsibly to treat, cure and prevent genetic disease.