研究揭示航天飛行影響健康的關鍵樞紐
作者:
小柯機器人發布時間:2020/11/27 14:46:04
美國宇航局(NASA)艾姆斯研究中心Afshin Beheshti課題組在研究中取得進展。他們利用全面的多組學分析表明線粒體應激是航天飛行影響生理功能的樞紐。2020年11月25日,國際學術期刊《細胞》發表了這一成果。
為了揭示太空飛行影響健康的原因,研究人員使用了多組學相結合的系統生物學分析方法,該方法利用了59名太空人的生物醫學資料以及NASA Gene Lab的數據,這些數據來自太空飛行員的數百個樣本,以確定太空飛行對轉錄、蛋白質組、代謝組學和表觀遺傳學的影響。對多組學數據集的總體分析表明,線粒體活動以及先天免疫、慢性炎症、細胞周期、晝夜節律和嗅覺功能均顯著富集。
重要的是,NASA的雙胞胎研究為證實一些主要的發現提供了平臺。從太空人中收集的尿液和血液代謝數據以及美國宇航局雙胞胎研究數據中也發現了線粒體功能改變和DNA損傷的證據,這表明線粒體應激是航天飛行的一致表型。
研究人員表示,太空飛行會以未知的分子病因對人生理健康產生影響。
附:英文原文
Title: Comprehensive Multi-omics Analysis Reveals Mitochondrial Stress as a Central Biological Hub for Spaceflight Impact
Author: Willian A. da Silveira, Hossein Fazelinia, Sara Brin Rosenthal, Evagelia C. Laiakis, Man S. Kim, Cem Meydan, Yared Kidane, Komal S. Rathi, Scott M. Smith, Benjamin Stear, Yue Ying, Yuanchao Zhang, Jonathan Foox, Susana Zanello, Brian Crucian, Dong Wang, Adrienne Nugent, Helio A. Costa, Sara R. Zwart, Sonja Schrepfer, R.A. Leo Elworth, Nicolae Sapoval, Todd Treangen, Matthew MacKay, Nandan S. Gokhale, Stacy M. Horner, Larry N. Singh, Douglas C. Wallace, Jeffrey S. Willey, Jonathan C. Schisler, Robert Meller, J. Tyson McDonald, Kathleen M. Fisch, Gary Hardiman, Deanne Taylor, Christopher E. Mason, Sylvain V. Costes, Afshin Beheshti
Issue&Volume: 2020/11/25
Abstract: Spaceflight is known to impose changes on human physiology with unknown molecular etiologies. To reveal these causes, we used a multi-omics, systems biology analytical approach using biomedical profiles from fifty-nine astronauts and data from NASA’s GeneLab derived from hundreds of samples flown in space to determine transcriptomic, proteomic, metabolomic, and epigenetic responses to spaceflight. Overall pathway analyses on the multi-omics datasets showed significant enrichment for mitochondrial processes, as well as innate immunity, chronic inflammation, cell cycle, circadian rhythm, and olfactory functions. Importantly, NASA’s Twin Study provided a platform to confirm several of our principal findings. Evidence of altered mitochondrial function and DNA damage was also found in the urine and blood metabolic data compiled from the astronaut cohort and NASA Twin Study data, indicating mitochondrial stress as a consistent phenotype of spaceflight.
DOI: 10.1016/j.cell.2020.11.002
Source: https://www.cell.com/cell/fulltext/S0092-8674(20)31461-6
Cell:《細胞》,創刊於1974年。隸屬於細胞出版社,最新IF:36.216