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Intestinal long non-coding RNAs in response to simulated microgravity stress in Caenorhabditis elegans

Scientific Reports 2021 41 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 40 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Lingmei Sun, Lingmei Sun, Dayong Wang Dayong Wang Dan Li, Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Yujie Yuan, Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang Dayong Wang

Summary

Researchers used C. elegans roundworms to study how gut-expressed long non-coding RNAs (lncRNAs) — segments of genetic material that regulate other genes — respond to simulated weightlessness (microgravity), identifying eight lncRNAs that either protected against or increased susceptibility to microgravity stress. The study provides a framework for understanding how intestinal gene regulation adapts to environmental stress, with broader implications for space biology and stress response research.

Long non-coding RNAs (lncRNAs) are important in regulating the response to environmental stresses in organisms. In this study, we used Caenorhabditis elegans as an animal model to determine the functions of intestinal lncRNAs in regulating response to simulated microgravity stress. Among the intestinal lncRNAs, linc-2, linc-46, linc-61, and linc-78 were increased by simulated microgravity treatment, and linc-13, linc-14, linc-50, and linc-125 were decreased by simulated microgravity treatment. Among these 8 intestinal lncRNAs, RNAi knockdown of linc-2 or linc-61 induced a susceptibility to toxicity of simulated microgravity, whereas RNAi knockdown of linc-13, linc-14, or linc-50 induced a resistance to toxicity of simulated microgravity. In simulated microgravity treated nematodes, linc-50 potentially binds to three transcriptional factors (DAF-16, SKN-1, and HLH-30). RNAi knockdown of daf-16, skn-1, or hlh-30 could suppress resistance of linc-50(RNAi) nematodes to the toxicity of simulated microgravity. Therefore, our results provide an important basis for intestinal lncRNAs, such as the linc-50, in regulating the response to simulated microgravity in nematodes.

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