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Lu TC, Brbić M, Park YJ, Jackson T, Chen J, Kolluru SS, Qi Y, Katheder NS, Cai XT, Lee S, Chen YC, Auld N, Liang CY, Ding SH, Welsch D, D’Souza S, Pisco AO, Jones RC, Leskovec J, Lai EC, Bellen HJ, Luo L, Jasper H, Quake SR, Li H. Aging Fly Cell Atlas identifies exhaustive aging features at cellular resolution. Science 2023; 380:eadg0934. [PMID: 37319212 PMCID: PMC10829769 DOI: 10.1126/science.adg0934] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/04/2023] [Indexed: 06/17/2023]
Abstract
Aging is characterized by a decline in tissue function, but the underlying changes at cellular resolution across the organism remain unclear. Here, we present the Aging Fly Cell Atlas, a single-nucleus transcriptomic map of the whole aging Drosophila. We characterized 163 distinct cell types and performed an in-depth analysis of changes in tissue cell composition, gene expression, and cell identities. We further developed aging clock models to predict fly age and show that ribosomal gene expression is a conserved predictive factor for age. Combining all aging features, we find distinctive cell type-specific aging patterns. This atlas provides a valuable resource for studying fundamental principles of aging in complex organisms.
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Affiliation(s)
- Tzu-Chiao Lu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Maria Brbić
- School of Computer and Communication Sciences, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | - Ye-Jin Park
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Tyler Jackson
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Program in Cancer Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jiaye Chen
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Program in Quantitative & Computational Biosciences, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sai Saroja Kolluru
- Department of Bioengineering, Stanford University, Stanford, CA, USA
- Department of Applied Physics, Stanford University, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco CA, USA
| | - Yanyan Qi
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | | | - Xiaoyu Tracy Cai
- Regenerative Medicine, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Seungjae Lee
- Developmental Biology Program, Sloan Kettering Institute, 1275 York Ave, New York, NY 10065, USA
| | - Yen-Chung Chen
- Department of Biology, New York University, New York, NY 10013, USA
| | - Niccole Auld
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Program in Cancer Cell Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Chung-Yi Liang
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Institute of Biochemistry and Molecular Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Sophia H. Ding
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Doug Welsch
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | | | | | - Robert C. Jones
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Jure Leskovec
- Department of Computer Science, Stanford University, Stanford, CA 94305, USA
| | - Eric C. Lai
- Developmental Biology Program, Sloan Kettering Institute, 1275 York Ave, New York, NY 10065, USA
| | - Hugo J. Bellen
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Program in Development, Disease Models & Therapeutics, Baylor College of Medicine, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Liqun Luo
- Howard Hughes Medical Institute, Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Heinrich Jasper
- Regenerative Medicine, Genentech, Inc., South San Francisco, CA 94080, USA
| | - Stephen R. Quake
- Department of Bioengineering, Stanford University, Stanford, CA, USA
- Department of Applied Physics, Stanford University, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco CA, USA
| | - Hongjie Li
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
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Duan SB, Wei SS, Wang HM, Ding SH, Chen YZ, Tian JJ, Wang YJ, Chen W, Chen J, Meng QL. [Intein-Mediated Protein trans-Splicing of the Recombinant Streptavidin on Magnetosomes]. Mol Biol (Mosk) 2021; 55:982-986. [PMID: 34837702 DOI: 10.31857/s0026898421060057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 03/12/2021] [Indexed: 11/24/2022]
Abstract
When expressing streptavidin recombinant polypeptide on magnetosomes (called bacterial magnetic nanoparticles, or BMPs), the presence of endogenous bacterial biotin might be detrimental. In the study, the streptavidin monomer fragment (S1-116) was fused with the intein N-terminal (termed precursor S1-116-IN), and S1-116-IN was expressed in E. coli (BL21). Meanwhile, the SA117-160 fragment was fused with the C-terminal intein, and then this chimeric polypeptide was expressed on magnetosomes by fusion with magnetosome membrance protein MamF. In the in vitro protein splicing system, the purified engineered magnetosomes (BMP-SA117-160-IC) and the S1-116-IN precursor were mixed. Intein-mediated trans-splicing reaction was induced to produce the functional magnetic beads BMP-SA. Our results indicate that intein-mediated protein trans-splicing may lead to efficient synthesis of the recombinant streptavidin on the magnetosomes, showing its promising potential to produce other functional magnetic nanoparticles.
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Affiliation(s)
- S B Duan
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,Jihua Laboratory, Foshan, 315200 China
| | - S S Wei
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,Jihua Laboratory, Foshan, 315200 China
| | - H M Wang
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,Jihua Laboratory, Foshan, 315200 China
| | - S H Ding
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,Jihua Laboratory, Foshan, 315200 China
| | - Y Z Chen
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,Jihua Laboratory, Foshan, 315200 China
| | - J J Tian
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,Jihua Laboratory, Foshan, 315200 China
| | - Y J Wang
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China
| | - W Chen
- Suzhou Blood Center, Suzhou, 215006 China
| | - J Chen
- Suzhou Blood Center, Suzhou, 215006 China.,
| | - Q L Meng
- Suzhou Institute of Biomedical Engineering and Technology, Suzhou, 215163 China.,
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