1
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Ulfig A, Jakob U. Cellular oxidants and the proteostasis network: balance between activation and destruction. Trends Biochem Sci 2024; 49:761-774. [PMID: 39168791 DOI: 10.1016/j.tibs.2024.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/27/2024] [Accepted: 07/09/2024] [Indexed: 08/23/2024]
Abstract
Loss of protein homeostasis (proteostasis) is a common hallmark of aging and age-associated diseases. Considered as the guardian of proteostasis, the proteostasis network (PN) acts to preserve the functionality of proteins during their lifetime. However, its activity declines with age, leading to disease manifestation. While reactive oxygen species (ROS) were traditionally considered culprits in this process, recent research challenges this view. While harmful at high concentrations, moderate ROS levels protect the cell against age-mediated onset of proteotoxicity by activating molecular chaperones, stress response pathways, and autophagy. This review explores the nuanced roles of ROS in proteostasis and discusses the most recent findings regarding the redox regulation of the PN and its potential in extending healthspan and delaying age-related pathologies.
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Affiliation(s)
- Agnes Ulfig
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Ursula Jakob
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA; Biological Chemistry Department, University of Michigan Medical School, Ann Arbor, MI, USA.
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2
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Nguyen UTT, Youn E, Le TAN, Ha NM, Tran SH, Lee S, Cha JW, Park JS, Kwon HC, Kang K. Photodynamic treatment increases the lifespan and oxidative stress resistance of Caenorhabditis elegans. Free Radic Biol Med 2024; 221:98-110. [PMID: 38754743 DOI: 10.1016/j.freeradbiomed.2024.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/29/2024] [Accepted: 05/12/2024] [Indexed: 05/18/2024]
Abstract
Photodynamic therapy is a noninvasive treatment in which specific photosensitizers and light are used to produce high amounts of reactive oxygen species (ROS), which can be employed for targeted tissue destruction in cancer treatment or antimicrobial therapy. However, it remains unknown whether lower amounts of ROS produced by mild photodynamic therapy increase lifespan and stress resistance at the organism level. Here, we introduce a novel photodynamic treatment (PDTr) that uses 20 μM hypericin, a photosensitizer that originates from Hypericum perforatum, and orange light (590 nm, 5.4 W/m2, 1 min) to induce intracellular ROS formation (ROS), thereby resulting in lifespan extension and improved stress resistance in C. elegans. The PDTr-induced increase in longevity was abrogated by N-acetyl cysteine, suggesting the hormetic response was driven by prooxidative mechanisms. PDTr activated the translocation of SKN-1/NRF-2 and DAF-16/FOXO, leading to elevated expression of downstream oxidative stress-responsive genes, including ctl-1, gst-4, and sod-3. In summary, our findings suggest a novel PDTr method that extends the lifespan of C. elegans under both normal and oxidative stress conditions through the activation of SKN-1 and DAF-16 via the involvement of many antioxidant genes.
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Affiliation(s)
- Uyen Tran Tu Nguyen
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Esther Youn
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Tram Anh Ngoc Le
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Ngoc Minh Ha
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Son Hung Tran
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Sohyun Lee
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Jin Wook Cha
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Jin-Soo Park
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea
| | - Hak Cheol Kwon
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea
| | - Kyungsu Kang
- Natural Product Informatics Research Center, Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangwon-do, 25451, Republic of Korea; Natural Product Applied Science, KIST School, University of Science and Technology (UST), Gangneung, Gangwon-do, 25451, Republic of Korea.
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3
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Niosi A, Võ NH, Sundaramurthy P, Welch C, Penn A, Yuldasheva Y, Alfareh A, Rausch K, Amin-Rahbar T, Cavanaugh J, Yadav P, Peterson S, Brown R, Hu A, Ardon-Castro A, Nguyen D, Crawford R, Lee W, Morris EJ, Jensen MH, Mulligan K. Kismet/CHD7/CHD8 affects gut microbiota, mechanics, and the gut-brain axis in Drosophila melanogaster. Biophys J 2024:S0006-3495(24)00413-2. [PMID: 38902926 DOI: 10.1016/j.bpj.2024.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 05/17/2024] [Accepted: 06/17/2024] [Indexed: 06/22/2024] Open
Abstract
The gut microbiome affects brain and neuronal development and may contribute to the pathophysiology of neurodevelopmental disorders. However, it is unclear how risk genes associated with such disorders affect gut physiology in a manner that could impact microbial colonization and how the mechanical properties of the gut tissue might play a role in gut-brain bidirectional communication. To address this, we used Drosophila melanogaster with a null mutation in the gene kismet, an ortholog of chromodomain helicase DNA-binding protein (CHD) family members CHD7 and CHD8. In humans, these are risk genes for neurodevelopmental disorders with co-occurring gastrointestinal symptoms. We found that kismet mutant flies have a significant increase in gastrointestinal transit time, indicating the functional homology of kismet with CHD7/CHD8 in vertebrates. Rheological characterization of dissected gut tissue revealed significant changes in the mechanics of kismet mutant gut elasticity, strain stiffening behavior, and tensile strength. Using 16S rRNA metagenomic sequencing, we also found that kismet mutants have reduced diversity and abundance of gut microbiota at every taxonomic level. To investigate the connection between the gut microbiome and behavior, we depleted gut microbiota in kismet mutant and control flies and quantified the flies' courtship behavior. Depletion of gut microbiota rescued courtship defects of kismet mutant flies, indicating a connection between gut microbiota and behavior. In striking contrast, depletion of the gut microbiome in the control strain reduced courtship activity, demonstrating that antibiotic treatment can have differential impacts on behavior and may depend on the status of microbial dysbiosis in the gut prior to depletion. We propose that Kismet influences multiple gastrointestinal phenotypes that contribute to the gut-microbiome-brain axis to influence behavior. We also suggest that gut tissue mechanics should be considered as an element in the gut-brain communication loop, both influenced by and potentially influencing the gut microbiome and neurodevelopment.
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Affiliation(s)
- Angelo Niosi
- Department of Biological Sciences, California State University, Sacramento, California
| | - Nguyên Henry Võ
- Department of Biological Sciences, California State University, Sacramento, California
| | | | - Chloe Welch
- Department of Biological Sciences, California State University, Sacramento, California
| | - Aliyah Penn
- Department of Biological Sciences, California State University, Sacramento, California
| | - Yelena Yuldasheva
- Department of Biological Sciences, California State University, Sacramento, California
| | - Adam Alfareh
- Department of Biological Sciences, California State University, Sacramento, California
| | - Kaitlyn Rausch
- Department of Biological Sciences, California State University, Sacramento, California
| | - Takhmina Amin-Rahbar
- Department of Biological Sciences, California State University, Sacramento, California
| | - Jeffery Cavanaugh
- Department of Physics and Astronomy, California State University, Sacramento, California
| | - Prince Yadav
- Department of Physics and Astronomy, California State University, Sacramento, California
| | - Stephanie Peterson
- Department of Biological Sciences, California State University, Sacramento, California
| | - Raina Brown
- Department of Biological Sciences, California State University, Sacramento, California
| | - Alain Hu
- Department of Biological Sciences, California State University, Sacramento, California
| | - Any Ardon-Castro
- Department of Biological Sciences, California State University, Sacramento, California
| | - Darren Nguyen
- Department of Biological Sciences, California State University, Sacramento, California
| | - Robert Crawford
- Department of Biological Sciences, California State University, Sacramento, California
| | - Wendy Lee
- Department of Computer Science, San Jose State University, San Jose, California
| | - Eliza J Morris
- Department of Physics and Astronomy, California State University, Sacramento, California
| | - Mikkel Herholdt Jensen
- Department of Physics and Astronomy, California State University, Sacramento, California.
| | - Kimberly Mulligan
- Department of Biological Sciences, California State University, Sacramento, California.
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4
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Wang J, Gu J, Yi J, Li J, Li W, Zhai Z. High-fat diets induce inflammatory IMD/NFκB signaling via gut microbiota remodeling in Drosophila. Front Cell Infect Microbiol 2024; 14:1347716. [PMID: 38716198 PMCID: PMC11074423 DOI: 10.3389/fcimb.2024.1347716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/02/2024] [Indexed: 06/05/2024] Open
Abstract
High-fat diets (HFDs), a prevailing daily dietary style worldwide, induce chronic low-grade inflammation in the central nervous system and peripheral tissues, promoting a variety of diseases including pathologies associated with neuroinflammation. However, the mechanisms linking HFDs to inflammation are not entirely clear. Here, using a Drosophila HFD model, we explored the mechanism of HFD-induced inflammation in remote tissues. We found that HFDs activated the IMD/NFκB immune pathway in the head through remodeling of the commensal gut bacteria. Removal of gut microbiota abolished such HFD-induced remote inflammatory response. Further experiments revealed that HFDs significantly increased the abundance of Acetobacter malorum in the gut, and the re-association of this bacterium was sufficient to elicit inflammatory response in remote tissues. Mechanistically, Acetobacter malorum produced a greater amount of peptidoglycan (PGN), a well-defined microbial molecular pattern that enters the circulation and remotely activates an inflammatory response. Our results thus show that HFDs trigger inflammation mediated by a bacterial molecular pattern that elicits host immune response.
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Affiliation(s)
| | | | | | | | | | - Zongzhao Zhai
- Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Sciences, Hunan Normal University, Changsha, China
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5
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Yin J, Chen HL, Grigsby-Brown A, He Y, Cotten ML, Short J, Dermady A, Lei J, Gibbs M, Cheng ES, Zhang D, Long C, Xu L, Zhong T, Abzalimov R, Haider M, Sun R, He Y, Zhou Q, Tjandra N, Yuan Q. Glia-derived secretory fatty acid binding protein Obp44a regulates lipid storage and efflux in the developing Drosophila brain. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.10.588417. [PMID: 38645138 PMCID: PMC11030299 DOI: 10.1101/2024.04.10.588417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Glia derived secretory factors play diverse roles in supporting the development, physiology, and stress responses of the central nervous system (CNS). Through transcriptomics and imaging analyses, we have identified Obp44a as one of the most abundantly produced secretory proteins from Drosophila CNS glia. Protein structure homology modeling and Nuclear Magnetic Resonance (NMR) experiments reveal Obp44a as a fatty acid binding protein (FABP) with a high affinity towards long-chain fatty acids in both native and oxidized forms. Further analyses demonstrate that Obp44a effectively infiltrates the neuropil, traffics between neuron and glia, and is secreted into hemolymph, acting as a lipid chaperone and scavenger to regulate lipid and redox homeostasis in the developing brain. In agreement with this essential role, deficiency of Obp44a leads to anatomical and behavioral deficits in adult animals and elevated oxidized lipid levels. Collectively, our findings unveil the crucial involvement of a noncanonical lipid chaperone to shuttle fatty acids within and outside the brain, as needed to maintain a healthy brain lipid environment. These findings could inspire the design of novel approaches to restore lipid homeostasis that is dysregulated in CNS diseases.
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Affiliation(s)
- Jun Yin
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Hsueh-Ling Chen
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Anna Grigsby-Brown
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Yi He
- Fermentation Facility, Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Myriam L Cotten
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR
| | - Jacob Short
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Aidan Dermady
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Jingce Lei
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Mary Gibbs
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Ethan S Cheng
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Dean Zhang
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Caixia Long
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
| | - Lele Xu
- Advanced Science Research Center, The City University of New York, New York, NY
- Ph.D. Program in Biology, The Graduate Center of the City University of New York, New York, NY
| | - Tiffany Zhong
- Neuroscience Program, Princeton University, Princeton, NJ
| | - Rinat Abzalimov
- Advanced Science Research Center, The City University of New York, New York, NY
| | - Mariam Haider
- Department of Cell and Developmental Biology, Vanderbilt Brain Institute, Center for Structural Biology, Vanderbilt Kennedy Center, Vanderbilt University, Nashville, TN
| | - Rong Sun
- Department of Cell and Developmental Biology, Vanderbilt Brain Institute, Center for Structural Biology, Vanderbilt Kennedy Center, Vanderbilt University, Nashville, TN
| | - Ye He
- Advanced Science Research Center, The City University of New York, New York, NY
- Ph.D. Program in Biology, The Graduate Center of the City University of New York, New York, NY
| | - Qiangjun Zhou
- Department of Cell and Developmental Biology, Vanderbilt Brain Institute, Center for Structural Biology, Vanderbilt Kennedy Center, Vanderbilt University, Nashville, TN
| | - Nico Tjandra
- Laboratory of Molecular Biophysics, Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Quan Yuan
- Dendrite Morphogenesis and Plasticity Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD
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6
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Yu G, Kuang H, Xu C, Sun M, Hao C. Tri-mode Responses to Reactive Oxygen Species In Vivo by Chiral Vanadium-Based Nanoparticles. Anal Chem 2024; 96:5677-5685. [PMID: 38533607 DOI: 10.1021/acs.analchem.4c00665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Reactive oxygen species (ROS) are closely associated with the redox balance of the physiological environment, and monitoring ROS can aid in the early diagnosis of many diseases, including cancer. In this study, chiral vanadium trioxide/vanadium nitride (V2O3/VN) nanoparticles (NPs) modified with an organic dye (cyanine 3 [Cy3]) were prepared for ROS sensing. Chiral V2O3/VN NPs were prepared with the "ligand-induced chirality" strategy and showed a g-factor of up to 0.12 at a wavelength of 512 nm. To the best of our knowledge, this g-factor is the highest value of all chiral ceramic nanomaterials. The very high g-factor of the nanoprobe confers very high sensitivity, because the higher g-factor, the higher sensitivity. In the presence of ROS, V3+ in the chiral V2O3/VN nanoprobe undergoes a redox reaction to form V2O5, reducing the circular dichroism and absorbance signals, whereas the fluorescence signal of Cy3 is restored. With this nanoprobe, the limits of detection for the circular dichroic and fluorescence signals in living cells are 0.0045 nmol/106 and 0.018 nmol/106 cells, respectively. This chiral nanoprobe can also monitor ROS levels in vivo by fluorescence. This strategy provides an innovative approach to the detection of ROS and is expected to promote the wider application of chiral nanomaterials for biosensing.
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Affiliation(s)
- Guangbo Yu
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Hua Kuang
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Chuanlai Xu
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Maozhong Sun
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Changlong Hao
- International Joint Research Laboratory for Biointerface and Biodetection, State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
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7
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Karagianni C, Bazopoulou D. Redox regulation in lifespan determination. J Biol Chem 2024; 300:105761. [PMID: 38367668 PMCID: PMC10965828 DOI: 10.1016/j.jbc.2024.105761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/07/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024] Open
Abstract
One of the major challenges that remain in the fields of aging and lifespan determination concerns the precise roles that reactive oxygen species (ROS) play in these processes. ROS, including superoxide and hydrogen peroxide, are constantly generated as byproducts of aerobic metabolism, as well as in response to endogenous and exogenous cues. While ROS accumulation and oxidative damage were long considered to constitute some of the main causes of age-associated decline, more recent studies reveal a signaling role in the aging process. In fact, accumulation of ROS, in a spatiotemporal manner, can trigger beneficial cellular responses that promote longevity and healthy aging. In this review, we discuss the importance of timing and compartmentalization of external and internal ROS perturbations in organismal lifespan and the role of redox regulated pathways.
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8
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Stobdan T, Wen NJ, Lu-Bo Y, Zhou D, Haddad GG. The Pupa Stage Is the Most Sensitive to Hypoxia in Drosophila melanogaster. Int J Mol Sci 2024; 25:710. [PMID: 38255782 PMCID: PMC10815303 DOI: 10.3390/ijms25020710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Hypoxia not only plays a critical role in multiple disease conditions; it also influences the growth and development of cells, tissues and organs. To identify novel hypoxia-related mechanisms involved in cell and tissue growth, studying a precise hypoxia-sensitive time window can be an effective approach. Drosophila melanogaster has been a useful model organism for studying a variety of conditions, and we focused in this study on the life cycle stages of Drosophila to investigate their hypoxia sensitivity. When normoxia-grown flies were treated with 4% O2 at the pupa stage for 3, 2 and 1 day/s, the eclosion rates were 6.1%, 66.7% and 96.4%, respectively, and, when 4% O2 was kept for the whole pupa stage, this regimen was lethal. Surprisingly, when our hypoxia-adapted flies who normally live in 4% O2 were treated with 4% O2 at the pupa stage, no fly eclosed. Within the pupa stage, the pupae at 2 and 3 days after pupae formation (APF), when treated for 2 days, demonstrated 12.5 ± 8.5% and 23.6 ± 1.6% eclosion, respectively, but this was completely lethal when treated for 3 days. We conclude that pupae, at 2 days APF and for a duration of a minimum of 2 days, were the most sensitive to hypoxia. Our data from our hypoxia-adapted flies clearly indicate that epigenetic factors play a critical role in pupa-stage hypoxia sensitivity.
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Affiliation(s)
- Tsering Stobdan
- Division of Respiratory Medicine, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (T.S.); (N.J.W.); (Y.L.-B.); (D.Z.)
| | - Nicholas J. Wen
- Division of Respiratory Medicine, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (T.S.); (N.J.W.); (Y.L.-B.); (D.Z.)
| | - Ying Lu-Bo
- Division of Respiratory Medicine, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (T.S.); (N.J.W.); (Y.L.-B.); (D.Z.)
| | - Dan Zhou
- Division of Respiratory Medicine, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (T.S.); (N.J.W.); (Y.L.-B.); (D.Z.)
| | - Gabriel G. Haddad
- Division of Respiratory Medicine, Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA; (T.S.); (N.J.W.); (Y.L.-B.); (D.Z.)
- Department of Neurosciences, University of California San Diego, La Jolla, CA 92093, USA
- Rady Children’s Hospital, San Diego, CA 92123, USA
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9
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Oleson BJ, Bhattrai J, Zalubas SL, Kravchenko TR, Ji Y, Jiang EL, Lu CC, Madden CR, Coffman JG, Bazopoulou D, Jones JW, Jakob U. Early life changes in histone landscape protect against age-associated amyloid toxicities through HSF-1-dependent regulation of lipid metabolism. NATURE AGING 2024; 4:48-61. [PMID: 38057386 DOI: 10.1038/s43587-023-00537-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 11/02/2023] [Indexed: 12/08/2023]
Abstract
Transient events during development can exert long-lasting effects on organismal lifespan. Here we demonstrate that exposure of Caenorhabditis elegans to reactive oxygen species during development protects against amyloid-induced proteotoxicity later in life. We show that this protection is initiated by the inactivation of the redox-sensitive H3K4me3-depositing COMPASS complex and conferred by a substantial increase in the heat-shock-independent activity of heat shock factor 1 (HSF-1), a longevity factor known to act predominantly during C. elegans development. We show that depletion of HSF-1 leads to marked rearrangements of the organismal lipid landscape and a significant decrease in mitochondrial β-oxidation and that both lipid and metabolic changes contribute to the protective effects of HSF-1 against amyloid toxicity. Together, these findings link developmental changes in the histone landscape, HSF-1 activity and lipid metabolism to protection against age-associated amyloid toxicities later in life.
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Affiliation(s)
- Bryndon J Oleson
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Janakraj Bhattrai
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Sarah L Zalubas
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Tessa R Kravchenko
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Yuanyuan Ji
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, USA
| | - Emily L Jiang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Christine C Lu
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Ciara R Madden
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Julia G Coffman
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Daphne Bazopoulou
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
- Department of Biology, University of Crete, Heraklion, Greece
| | - Jace W Jones
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, USA
| | - Ursula Jakob
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
- Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI, USA.
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10
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Suyama R, Cetraro N, Yew JY, Kai T. Microbes control Drosophila germline stem cell increase and egg maturation through hormonal pathways. Commun Biol 2023; 6:1287. [PMID: 38123715 PMCID: PMC10733356 DOI: 10.1038/s42003-023-05660-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
Reproduction is highly dependent on environmental and physiological factors including nutrition, mating stimuli and microbes. Among these factors, microbes facilitate vital functions for host animals such as nutritional intake, metabolic regulation, and enhancing fertility under poor nutrition conditions. However, detailed molecular mechanisms by which microbes control germline maturation, leading to reproduction, remain largely unknown. In this study, we show that environmental microbes exert a beneficial effect on Drosophila oogenesis by promoting germline stem cell (GSC) proliferation and subsequent egg maturation via acceleration of ovarian cell division and suppression of apoptosis. Moreover, insulin-related signaling is not required; rather, the ecdysone pathway is necessary for microbe-induced increase of GSCs and promotion of egg maturation, while juvenile hormone contributes only to increasing GSC numbers, suggesting that hormonal pathways are activated at different stages of oogenesis. Our findings reveal that environmental microbes can enhance host reproductivity by modulating host hormone release and promoting oogenesis.
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Affiliation(s)
- Ritsuko Suyama
- Laboratory of Germline Biology, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka Suita, Osaka, 565-0871, Japan.
| | - Nicolas Cetraro
- Pacific Biosciences Research Center, University of Hawai'i at Manoa, 1993 East-West Road, Honolulu, HI, 96822, USA
| | - Joanne Y Yew
- Pacific Biosciences Research Center, University of Hawai'i at Manoa, 1993 East-West Road, Honolulu, HI, 96822, USA.
| | - Toshie Kai
- Laboratory of Germline Biology, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka Suita, Osaka, 565-0871, Japan.
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11
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Tando Y, Matsui Y. Inheritance of environment-induced phenotypic changes through epigenetic mechanisms. ENVIRONMENTAL EPIGENETICS 2023; 9:dvad008. [PMID: 38094661 PMCID: PMC10719065 DOI: 10.1093/eep/dvad008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/09/2023] [Accepted: 11/20/2023] [Indexed: 03/08/2024]
Abstract
Growing evidence suggests that epigenetic changes through various parental environmental factors alter the phenotypes of descendants in various organisms. Environmental factors, including exposure to chemicals, stress and abnormal nutrition, affect the epigenome in parental germ cells by different epigenetic mechanisms, such as DNA methylation, histone modification as well as small RNAs via metabolites. Some current remaining questions are the causal relationship between environment-induced epigenetic changes in germ cells and altered phenotypes of descendants, and the molecular basis of how the abnormal epigenetic changes escape reprogramming in germ cells. In this review, we introduce representative examples of intergenerational and transgenerational inheritance of phenotypic changes through parental environmental factors and the accompanied epigenetic and metabolic changes, with a focus on animal species. We also discuss the molecular mechanisms of epigenomic inheritance and their possible biological significance.
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Affiliation(s)
- Yukiko Tando
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 980-8575, Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Miyagi 980-8575, Japan
| | - Yasuhisa Matsui
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 980-8575, Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Miyagi 980-8575, Japan
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12
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Xu W, Rustenhoven J, Nelson CA, Dykstra T, Ferreiro A, Papadopoulos Z, Burnham CAD, Dantas G, Fremont DH, Kipnis J. A novel immune modulator IM33 mediates a glia-gut-neuronal axis that controls lifespan. Neuron 2023; 111:3244-3254.e8. [PMID: 37582366 PMCID: PMC10592285 DOI: 10.1016/j.neuron.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 05/19/2023] [Accepted: 07/18/2023] [Indexed: 08/17/2023]
Abstract
Aging is a complex process involving various systems and behavioral changes. Altered immune regulation, dysbiosis, oxidative stress, and sleep decline are common features of aging, but their interconnection is poorly understood. Using Drosophila, we discover that IM33, a novel immune modulator, and its mammalian homolog, secretory leukocyte protease inhibitor (SLPI), are upregulated in old flies and old mice, respectively. Knockdown of IM33 in glia elevates the gut reactive oxygen species (ROS) level and alters gut microbiota composition, including increased Lactiplantibacillus plantarum abundance, leading to a shortened lifespan. Additionally, dysbiosis induces sleep fragmentation through the activation of insulin-producing cells in the brain, which is mediated by the binding of Lactiplantibacillus plantarum-produced DAP-type peptidoglycan to the peptidoglycan recognition protein LE (PGRP-LE) receptor. Therefore, IM33 plays a role in the glia-microbiota-neuronal axis, connecting neuroinflammation, dysbiosis, and sleep decline during aging. Identifying molecular mediators of these processes could lead to the development of innovative strategies for extending lifespan.
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Affiliation(s)
- Wangchao Xu
- Brain Immunology and Glia (BIG) Center, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA.
| | - Justin Rustenhoven
- Brain Immunology and Glia (BIG) Center, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Pharmacology and Clinical Pharmacology, The University of Auckland, Auckland, New Zealand; Centre for Brain Research, The University of Auckland, Auckland, New Zealand
| | - Christopher A Nelson
- Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA
| | - Taitea Dykstra
- Brain Immunology and Glia (BIG) Center, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA
| | - Aura Ferreiro
- The Edison Family Center for Genome Sciences and Systems Biology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Zachary Papadopoulos
- Brain Immunology and Glia (BIG) Center, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Neuroscience Graduate Program, School of Medicine, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA
| | - Carey-Ann D Burnham
- Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA
| | - Gautam Dantas
- Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; The Edison Family Center for Genome Sciences and Systems Biology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, USA; Department of Molecular Microbiology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA
| | - Daved H Fremont
- Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Molecular Microbiology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA; Department of Biochemistry & Molecular Biophysics, Washington University School of Medicine, St. Louis, MO, USA
| | - Jonathan Kipnis
- Brain Immunology and Glia (BIG) Center, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA; Neuroscience Graduate Program, School of Medicine, Washington University in St. Louis, School of Medicine, St. Louis, MO, USA.
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13
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Qush A, Al Khatib HA, Rachid H, Al-Tamimi H, Al-Eshaq A, Al-Adwi S, Yassine HM, Kamareddine L. Intake of caffeine containing sugar diet remodels gut microbiota and perturbs Drosophila melanogaster immunity and lifespan. Microbes Infect 2023; 25:105149. [PMID: 37169244 DOI: 10.1016/j.micinf.2023.105149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 04/30/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023]
Abstract
The diet-microbiome-immunity axis is one among the many arms that draw up the "we are what we intake" proclamation. As such, studies on the effect of food and beverage intake on the gut environment and microbiome and on modulating immunological responses and the host's susceptibility to pathogens are on the rise. A typical accompaniment in different sustenance we consume on daily basis is the trimethylxanthine alkaloid caffeine. Being a chief component in our regular aliment, a better understanding of the effect of caffeine containing food and beverages on our gut-microbiome-immunity axis and henceforth on our health is much needed. In this study, we shed more light on the effect of oral consumption of caffeine supplemented sugar diet on the gut environment, specifically on the gut microbiota, innate immunity and host susceptibility to pathogens using the Drosophila melanogaster model organism. Our findings reveal that the oral intake of a dose-specific caffeine containing sucrose/agarose sugar diet causes a significant alteration within the fly gut milieu demarcated by microbial dysbiosis and an elevation in the production of reactive oxygen species and expression of immune-deficiency (Imd) pathway-dependent antimicrobial peptide genes. The oral intake of caffeine containing sucrose/agarose sugar diet also renders the flies more susceptible to bacterial infection and shortens their lifespan in both infection and non-infection settings. Our findings set forth additional insight into the potentiality of diet to alter the gut milieu and highlight the importance of dietary control on health.
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Affiliation(s)
- Abeer Qush
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hebah A Al Khatib
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar
| | - Hajar Rachid
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hend Al-Tamimi
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Alyaa Al-Eshaq
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Shaima Al-Adwi
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Hadi M Yassine
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar
| | - Layla Kamareddine
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar; Biomedical Research Center, Qatar University, Doha, Qatar.
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14
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Khatoon S, Kalam N, Rashid S, Bano G. Effects of gut microbiota on neurodegenerative diseases. Front Aging Neurosci 2023; 15:1145241. [PMID: 37323141 PMCID: PMC10268008 DOI: 10.3389/fnagi.2023.1145241] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 04/12/2023] [Indexed: 06/17/2023] Open
Abstract
A progressive degradation of the brain's structure and function, which results in a reduction in cognitive and motor skills, characterizes neurodegenerative diseases (NDs) such as Alzheimer's disease (AD), Parkinson's disease (PD), Amyotrophic lateral sclerosis (ALS), and Huntington's disease (HD). The morbidity linked to NDs is growing, which poses a severe threat to human being's mental and physical ability to live well. The gut-brain axis (GBA) is now known to have a crucial role in the emergence of NDs. The gut microbiota is a conduit for the GBA, a two-way communication system between the gut and the brain. The myriad microorganisms that make up the gut microbiota can affect brain physiology by transmitting numerous microbial chemicals from the gut to the brain via the GBA or neurological system. The synthesis of neurotransmitters, the immunological response, and the metabolism of lipids and glucose have all been demonstrated to be impacted by alterations in the gut microbiota, such as an imbalance of helpful and harmful bacteria. In order to develop innovative interventions and clinical therapies for NDs, it is crucial to comprehend the participation of the gut microbiota in these conditions. In addition to using antibiotics and other drugs to target particular bacterial species that may be a factor in NDs, this also includes using probiotics and other fecal microbiota transplantation to maintain a healthy gut microbiota. In conclusion, the examination of the GBA can aid in understanding the etiology and development of NDs, which may benefit the improvement of clinical treatments for these disorders and ND interventions. This review indicates existing knowledge about the involvement of microbiota present in the gut in NDs and potential treatment options.
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Affiliation(s)
- Saima Khatoon
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Nida Kalam
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Summya Rashid
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Gulnaz Bano
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
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15
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Gao Y, Cheng X, Tian Y, Yuan Z, Fan X, Yang D, Yang M. Nutritional Programming of the Lifespan of Male Drosophila by Activating FOXO on Larval Low-Nutrient Diet. Nutrients 2023; 15:nu15081840. [PMID: 37111059 PMCID: PMC10142539 DOI: 10.3390/nu15081840] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Nutrition during the developmental stages has long-term effects on adult physiology, disease and lifespan, and is termed nutritional programming. However, the underlying molecular mechanisms of nutritional programming are not yet well understood. In this study, we showed that developmental diets could regulate the lifespan of adult Drosophila in a way that interacts with various adult diets during development and adulthood. Importantly, we demonstrated that a developmental low-yeast diet (0.2SY) extended both the health span and lifespan of male flies under nutrient-replete conditions in adulthood through nutritional programming. Males with a low-yeast diets during developmental stages had a better resistance to starvation and lessened decline of climbing ability with age in adulthood. Critically, we revealed that the activity of the Drosophila transcription factor FOXO (dFOXO) was upregulated in adult males under developmental low-nutrient conditions. The knockdown of dFOXO, with both ubiquitous and fat-body-specific patterns, can completely abolish the lifespan-extending effect from the larval low-yeast diet. Ultimately, we identify that the developmental diet achieved the nutritional programming of the lifespan of adult males by modulating the activity of dFOXO in Drosophila. Together, these results provide molecular evidence that the nutrition in the early life of animals could program the health of their later life and their longevity.
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Affiliation(s)
- Yue Gao
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
| | - Xingyi Cheng
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
| | - Yao Tian
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhixiao Yuan
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaolan Fan
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Deying Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Mingyao Yang
- Institute of Animal Genetics and Breeding, Sichuan Agricultural University, Chengdu 611130, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
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16
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Onuma T, Yamauchi T, Kosakamoto H, Kadoguchi H, Kuraishi T, Murakami T, Mori H, Miura M, Obata F. Recognition of commensal bacterial peptidoglycans defines Drosophila gut homeostasis and lifespan. PLoS Genet 2023; 19:e1010709. [PMID: 37023169 PMCID: PMC10112789 DOI: 10.1371/journal.pgen.1010709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 04/18/2023] [Accepted: 03/21/2023] [Indexed: 04/08/2023] Open
Abstract
Commensal microbes in animals have a profound impact on tissue homeostasis, stress resistance, and ageing. We previously showed in Drosophila melanogaster that Acetobacter persici is a member of the gut microbiota that promotes ageing and shortens fly lifespan. However, the molecular mechanism by which this specific bacterial species changes lifespan and physiology remains unclear. The difficulty in studying longevity using gnotobiotic flies is the high risk of contamination during ageing. To overcome this technical challenge, we used a bacteria-conditioned diet enriched with bacterial products and cell wall components. Here, we demonstrate that an A. persici-conditioned diet shortens lifespan and increases intestinal stem cell (ISC) proliferation. Feeding adult flies a diet conditioned with A. persici, but not with Lactiplantibacillus plantarum, can decrease lifespan but increase resistance to paraquat or oral infection of Pseudomonas entomophila, indicating that the bacterium alters the trade-off between lifespan and host defence. A transcriptomic analysis using fly intestine revealed that A. persici preferably induces antimicrobial peptides (AMPs), while L. plantarum upregulates amidase peptidoglycan recognition proteins (PGRPs). The specific induction of these Imd target genes by peptidoglycans from two bacterial species is due to the stimulation of the receptor PGRP-LC in the anterior midgut for AMPs or PGRP-LE from the posterior midgut for amidase PGRPs. Heat-killed A. persici also shortens lifespan and increases ISC proliferation via PGRP-LC, but it is not sufficient to alter the stress resistance. Our study emphasizes the significance of peptidoglycan specificity in determining the gut bacterial impact on healthspan. It also unveils the postbiotic effect of specific gut bacterial species, which turns flies into a "live fast, die young" lifestyle.
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Affiliation(s)
- Taro Onuma
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
- RIKEN Center for Biosystems Dynamics Research, Hyogo, Japan
| | - Toshitaka Yamauchi
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | | | - Hibiki Kadoguchi
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Takayuki Kuraishi
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Takumi Murakami
- Department of Informatics, National Institute of Genetics, Shizuoka, Japan
| | - Hiroshi Mori
- Department of Informatics, National Institute of Genetics, Shizuoka, Japan
| | - Masayuki Miura
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Fumiaki Obata
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
- RIKEN Center for Biosystems Dynamics Research, Hyogo, Japan
- Laboratory of Molecular Cell Biology and Development, Graduate School of Biostudies, Kyoto University, Kyoto, Japan
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17
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Castejon-Vega B, Cordero MD, Sanz A. How the Disruption of Mitochondrial Redox Signalling Contributes to Ageing. Antioxidants (Basel) 2023; 12:antiox12040831. [PMID: 37107206 PMCID: PMC10135186 DOI: 10.3390/antiox12040831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/16/2023] [Accepted: 03/25/2023] [Indexed: 03/31/2023] Open
Abstract
In the past, mitochondrial reactive oxygen species (mtROS) were considered a byproduct of cellular metabolism. Due to the capacity of mtROS to cause oxidative damage, they were proposed as the main drivers of ageing and age-related diseases. Today, we know that mtROS are cellular messengers instrumental in maintaining cellular homeostasis. As cellular messengers, they are produced in specific places at specific times, and the intensity and duration of the ROS signal determine the downstream effects of mitochondrial redox signalling. We do not know yet all the processes for which mtROS are important, but we have learnt that they are essential in decisions that affect cellular differentiation, proliferation and survival. On top of causing damage due to their capacity to oxidize cellular components, mtROS contribute to the onset of degenerative diseases when redox signalling becomes dysregulated. Here, we review the best-characterized signalling pathways in which mtROS participate and those pathological processes in which they are involved. We focus on how mtROS signalling is altered during ageing and discuss whether the accumulation of damaged mitochondria without signalling capacity is a cause or a consequence of ageing.
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18
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Wei JJ, Li XJ, Liu W, Chai XJ, Zhu XY, Sun PH, Liu F, Zhao YK, Huang JL, Liu YF, Zhao ST. Eucommia Polysaccharides Ameliorate Aging-Associated Gut Dysbiosis: A Potential Mechanism for Life Extension in Drosophila. Int J Mol Sci 2023; 24:ijms24065881. [PMID: 36982954 PMCID: PMC10054339 DOI: 10.3390/ijms24065881] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
The gut microbiota is increasingly considered to play a key role in human immunity and health. The aging process alters the microbiota composition, which is associated with inflammation, reactive oxygen species (ROS), decreased tissue function, and increased susceptibility to age-related diseases. It has been demonstrated that plant polysaccharides have beneficial effects on the gut microbiota, particularly in reducing pathogenic bacteria abundance and increasing beneficial bacteria populations. However, there is limited evidence of the effect of plant polysaccharides on age-related gut microbiota dysbiosis and ROS accumulation during the aging process. To explore the effect of Eucommiae polysaccharides (EPs) on age-related gut microbiota dysbiosis and ROS accumulation during the aging process of Drosophila, a series of behavioral and life span assays of Drosophila with the same genetic background in standard medium and a medium supplemented with EPs were performed. Next, the gut microbiota composition and protein composition of Drosophila in standard medium and the medium supplemented with EPs were detected using 16S rRNA gene sequencing analysis and quantitative proteomic analysis. Here, we show that supplementation of Eucommiae polysaccharides (EPs) during development leads to the life span extension of Drosophila. Furthermore, EPs decreased age-related ROS accumulation and suppressed Gluconobacter, Providencia, and Enterobacteriaceae in aged Drosophila. Increased Gluconobacter, Providencia, and Enterobacteriaceae in the indigenous microbiota might induce age-related gut dysfunction in Drosophila and shortens their life span. Our study demonstrates that EPs can be used as prebiotic agents to prevent aging-associated gut dysbiosis and reactive oxidative stress.
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Affiliation(s)
- Jing-Jing Wei
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Xiu-Juan Li
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Wei Liu
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Xue-Jun Chai
- College of Basic Medicine, Xi'an Medical University, Xi'an 710068, China
| | - Xiao-Yan Zhu
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Peng-Hao Sun
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Feng Liu
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Yong-Kang Zhao
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Jun-Lang Huang
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Ya-Fei Liu
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
| | - Shan-Ting Zhao
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
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19
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Ruuskanen S, Fuchs B, Nissinen R, Puigbò P, Rainio M, Saikkonen K, Helander M. Ecosystem consequences of herbicides: the role of microbiome. Trends Ecol Evol 2023; 38:35-43. [PMID: 36243622 DOI: 10.1016/j.tree.2022.09.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/13/2022] [Accepted: 09/16/2022] [Indexed: 12/14/2022]
Abstract
Non-target organisms are globally exposed to herbicides. While many herbicides - for example, glyphosate - were initially considered safe, increasing evidence demonstrates that they have profound effects on ecosystem functions via altered microbial communities. We provide a comprehensive framework on how herbicide residues may modulate ecosystem-level outcomes via alteration of microbiomes. The changes in soil microbiome are likely to influence key nutrient cycling and plant-soil processes. Herbicide-altered microbiome affects plant and animal performance and can influence trophic interactions such as herbivory and pollination. These changes are expected to lead to ecosystem and even evolutionary consequences for both microbes and hosts. Tackling the threats caused by agrochemicals to ecosystem functions and services requires tools and solutions based on a comprehensive understanding of microbe-mediated risks.
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Affiliation(s)
- Suvi Ruuskanen
- Department of Biological and Environmental Science, University of Jyväskylä, FI-40014 Jyväskylä, Finland; Department of Biology, University of Turku, FI-20014 Turku, Finland.
| | - Benjamin Fuchs
- Biodiversity Unit, University of Turku, FI-20014 Turku, Finland
| | - Riitta Nissinen
- Department of Biological and Environmental Science, University of Jyväskylä, FI-40014 Jyväskylä, Finland
| | - Pere Puigbò
- Department of Biology, University of Turku, FI-20014 Turku, Finland; Nutrition and Health Unit, Eurecat Technology Centre of Catalonia, Reus, Catalonia, Spain; Department of Biochemistry and Biotechnology, Rovira I Virgili University, Tarragona, Catalonia, Spain
| | - Miia Rainio
- Department of Biology, University of Turku, FI-20014 Turku, Finland
| | - Kari Saikkonen
- Biodiversity Unit, University of Turku, FI-20014 Turku, Finland
| | - Marjo Helander
- Department of Biology, University of Turku, FI-20014 Turku, Finland
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20
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Martínez Corrales G, Li M, Svermova T, Goncalves A, Voicu D, Dobson AJ, Southall TD, Alic N. Transcriptional memory of dFOXO activation in youth curtails later-life mortality through chromatin remodeling and Xbp1. NATURE AGING 2022; 2:1176-1190. [PMID: 37118537 PMCID: PMC7614430 DOI: 10.1038/s43587-022-00312-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 10/19/2022] [Indexed: 12/03/2022]
Abstract
A transient, homeostatic transcriptional response can result in transcriptional memory, programming subsequent transcriptional outputs. Transcriptional memory has great but unappreciated potential to alter animal aging as animals encounter a multitude of diverse stimuli throughout their lifespan. Here we show that activating an evolutionarily conserved, longevity-promoting transcription factor, dFOXO, solely in early adulthood of female fruit flies is sufficient to improve their subsequent health and survival in midlife and late life. This youth-restricted dFOXO activation causes persistent changes to chromatin landscape in the fat body and requires chromatin remodelers such as the SWI/SNF and ISWI complexes to program health and longevity. Chromatin remodeling is accompanied by a long-lasting transcriptional program that is distinct from that observed during acute dFOXO activation and includes induction of Xbp1. We show that this later-life induction of Xbp1 is sufficient to curtail later-life mortality. Our study demonstrates that transcriptional memory can profoundly alter how animals age.
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Affiliation(s)
- Guillermo Martínez Corrales
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London, UK
| | - Mengjia Li
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London, UK
| | - Tatiana Svermova
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London, UK
| | - Alex Goncalves
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London, UK
| | - Diana Voicu
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London, UK
| | - Adam J Dobson
- School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Tony D Southall
- Department of Life Sciences, Imperial College London, London, UK
| | - Nazif Alic
- Institute of Healthy Ageing and the Research Department of Genetics, Evolution, and Environment, University College London, London, UK.
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21
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Abe M, Kamiyama T, Izumi Y, Qian Q, Yoshihashi Y, Degawa Y, Watanabe K, Hattori Y, Uemura T, Niwa R. Shortened lifespan induced by a high-glucose diet is associated with intestinal immune dysfunction in Drosophila sechellia. J Exp Biol 2022; 225:jeb244423. [PMID: 36226701 PMCID: PMC9687539 DOI: 10.1242/jeb.244423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 10/03/2022] [Indexed: 11/20/2022]
Abstract
Organisms can generally be divided into two nutritional groups: generalists that consume various types of food and specialists that consume specific types of food. However, it remains unclear how specialists adapt to only limited nutritional conditions in nature. In this study, we addressed this question by focusing on Drosophila fruit flies. The generalist Drosophila melanogaster can consume a wide variety of foods that contain high glucose levels. In contrast, the specialist Drosophila sechellia consumes only the Indian mulberry, known as noni (Morinda citrifolia), which contains relatively little glucose. We showed that the lifespan of D. sechellia was significantly shortened under a high-glucose diet, but this effect was not observed for D. melanogaster. In D. sechellia, a high-glucose diet induced disorganization of the gut epithelia and visceral muscles, which was associated with abnormal digestion and constipation. RNA-sequencing analysis revealed that many immune-responsive genes were suppressed in the gut of D. sechellia fed a high-glucose diet compared with those fed a control diet. Consistent with this difference in the expression of immune-responsive genes, high glucose-induced phenotypes were restored by the addition of tetracycline or scopoletin, a major nutritional component of noni, each of which suppresses gut bacterial growth. We propose that, in D. sechellia, a high-glucose diet impairs gut immune function, which leads to a change in gut microbiota, disorganization of the gut epithelial structure and a shortened lifespan.
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Affiliation(s)
- Maiko Abe
- Degree Programs in Life and Earth Sciences, Graduate School of Science and Technology, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8572, Japan
| | - Takumi Kamiyama
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan
| | - Yasushi Izumi
- Division of Cell Structure, National Institute for Physiological Sciences, Okazaki, Aichi 444-8787, Japan
- Department of Physiological Sciences, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Qingyin Qian
- PhD Program in Human Biology, School of Integrative and Global Majors, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan
| | - Yuma Yoshihashi
- Degree Programs in Life and Earth Sciences, Graduate School of Science and Technology, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8572, Japan
- Sugadaira Research Station, Mountain Science Center, University of Tsukuba, Sugadairakogen 1278-294, Nagano 386-2204, Japan
| | - Yousuke Degawa
- Sugadaira Research Station, Mountain Science Center, University of Tsukuba, Sugadairakogen 1278-294, Nagano 386-2204, Japan
| | - Kaori Watanabe
- Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
| | - Yukako Hattori
- Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
| | - Tadashi Uemura
- Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
- Research Center for Dynamic Living Systems, Kyoto University, Kyoto 606-8501, Japan
- AMED-CREST, AMED, Otemachi 1-7-1, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Ryusuke Niwa
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan
- AMED-CREST, AMED, Otemachi 1-7-1, Chiyoda-ku, Tokyo 100-0004, Japan
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22
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Aiello G, Sabino C, Pernici D, Audano M, Antonica F, Gianesello M, Ballabio C, Quattrone A, Mitro N, Romanel A, Soldano A, Tiberi L. Transient rapamycin treatment during developmental stage extends lifespan in Mus musculus and Drosophila melanogaster. EMBO Rep 2022; 23:e55299. [PMID: 35796299 PMCID: PMC9442325 DOI: 10.15252/embr.202255299] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/20/2022] [Accepted: 06/23/2022] [Indexed: 12/13/2022] Open
Abstract
Lifespan is determined by complex and tangled mechanisms that are largely unknown. The early postnatal stage has been proposed to play a role in lifespan, but its contribution is still controversial. Here, we show that a short rapamycin treatment during early life can prolong lifespan in Mus musculus and Drosophila melanogaster. Notably, the same treatment at later time points has no effect on lifespan, suggesting that a specific time window is involved in lifespan regulation. We also find that sulfotransferases are upregulated during early rapamycin treatment both in newborn mice and in Drosophila larvae, and transient dST1 overexpression in Drosophila larvae extends lifespan. Our findings unveil a novel link between early-life treatments and long-term effects on lifespan.
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Affiliation(s)
- Giuseppe Aiello
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
| | - Cosimo Sabino
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
| | - Davide Pernici
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
| | - Matteo Audano
- DiSFeB, Dipartimento di Scienze Farmacologiche e BiomolecolariUniversità degli Studi di MilanoMilanItaly
| | - Francesco Antonica
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
| | - Matteo Gianesello
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
| | - Claudio Ballabio
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
| | - Alessandro Quattrone
- Laboratory of Translational Genomics, Department CIBIOUniversity of TrentoTrentoItaly
| | - Nico Mitro
- DiSFeB, Dipartimento di Scienze Farmacologiche e BiomolecolariUniversità degli Studi di MilanoMilanItaly
| | - Alessandro Romanel
- Laboratory of Bioinformatics and Computational Genomics, Department CIBIOUniversity of TrentoTrentoItaly
| | - Alessia Soldano
- Laboratory of Translational Genomics, Department CIBIOUniversity of TrentoTrentoItaly
| | - Luca Tiberi
- Armenise‐Harvard Laboratory of Brain Disorders and Cancer, Department CIBIOUniversity of TrentoTrentoItaly
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23
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Perez MA, Clostio AJ, Houston IR, Ruiz J, Magtanong L, Dixon SJ, Watts JL. Ether lipid deficiency disrupts lipid homeostasis leading to ferroptosis sensitivity. PLoS Genet 2022; 18:e1010436. [PMID: 36178986 PMCID: PMC9555615 DOI: 10.1371/journal.pgen.1010436] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 10/12/2022] [Accepted: 09/20/2022] [Indexed: 11/24/2022] Open
Abstract
Ferroptosis is an iron-dependent form of regulated cell death associated with uncontrolled membrane lipid peroxidation and destruction. Previously, we showed that dietary dihomo-gamma-linolenic acid (DGLA; 20: 3(n-6)) triggers ferroptosis in the germ cells of the model organism, Caenorhabditis elegans. We also demonstrated that ether lipid-deficient mutant strains are sensitive to DGLA-induced ferroptosis, suggesting a protective role for ether lipids. The vinyl ether bond unique to plasmalogen lipids has been hypothesized to function as an antioxidant, but this has not been tested in animal models. In this study, we used C. elegans mutants to test the hypothesis that the vinyl ether bond in plasmalogens acts as an antioxidant to protect against germ cell ferroptosis as well as to protect from whole-body tert-butyl hydroperoxide (TBHP)-induced oxidative stress. We found no role for plasmalogens in either process. Instead, we demonstrate that ether lipid-deficiency disrupts lipid homeostasis in C. elegans, leading to altered ratios of saturated and monounsaturated fatty acid (MUFA) content in cellular membranes. We demonstrate that ferroptosis sensitivity in both wild type and ether-lipid deficient mutants can be rescued in several ways that change the relative abundance of saturated fats, MUFAs and specific polyunsaturated fatty acids (PUFAs). Specifically, we reduced ferroptosis sensitivity by (1) using mutant strains unable to synthesize DGLA, (2) using a strain carrying a gain-of-function mutation in the transcriptional mediator MDT-15, or (3) by dietary supplementation of MUFAs. Furthermore, our studies reveal important differences in how dietary lipids influence germ cell ferroptosis versus whole-body peroxide-induced oxidative stress. These studies highlight a potentially beneficial role for endogenous and dietary MUFAs in the prevention of ferroptosis.
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Affiliation(s)
- Marcos A. Perez
- School of Molecular Biosciences and Center for Reproductive Biology Washington State University, Pullman, Washington, United States of America
| | - Andrea J. Clostio
- School of Molecular Biosciences and Center for Reproductive Biology Washington State University, Pullman, Washington, United States of America
| | - Isabel R. Houston
- School of Molecular Biosciences and Center for Reproductive Biology Washington State University, Pullman, Washington, United States of America
| | - Jimena Ruiz
- School of Molecular Biosciences and Center for Reproductive Biology Washington State University, Pullman, Washington, United States of America
| | - Leslie Magtanong
- Department of Biology, Stanford University, Stanford, California, United States of America
| | - Scott J. Dixon
- Department of Biology, Stanford University, Stanford, California, United States of America
| | - Jennifer L. Watts
- School of Molecular Biosciences and Center for Reproductive Biology Washington State University, Pullman, Washington, United States of America
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24
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Sang J, Zhuang D, Zhang T, Wu Q, Yu J, Zhang Z. Convergent and Divergent Age Patterning of Gut Microbiota Diversity in Humans and Nonhuman Primates. mSystems 2022; 7:e0151221. [PMID: 35758593 PMCID: PMC9426537 DOI: 10.1128/msystems.01512-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 06/08/2022] [Indexed: 12/24/2022] Open
Abstract
The gut microbiome has significant effects on healthy aging and aging-related diseases, whether in humans or nonhuman primates. However, little is known about the divergence and convergence of gut microbial diversity between humans and nonhuman primates during aging, which limits their applicability for studying the gut microbiome's role in human health and aging. Here, we performed 16S rRNA gene sequencing analysis for captive rhesus macaques (Macaca mulatta) and compared this data set with other freely available gut microbial data sets containing four human populations (Chinese, Japanese, Italian, and British) and two nonhuman primates (wild lemurs [Lemur catta] and wild chimpanzees [Pan troglodytes]). Based on the consistent V4 region of the 16S rRNA gene, beta diversity analysis suggested significantly separated gut microbial communities associated with host backgrounds of seven host groups, but within each group, significant gut microbial divergences were observed, and indicator bacterial genera were identified as associated with aging. We further discovered six common anti-inflammatory gut bacteria (Prevotellamassilia, Prevotella, Gemmiger, Coprococcus, Faecalibacterium, and Roseburia) that had butyrate-producing potentials suggested by pangenomic analysis and that showed similar dynamic changes in at least two selected host groups during aging, independent of distinct host backgrounds. Finally, we found striking age-related changes in 66 plasma metabolites in macaques. Two highly changed metabolites, hydroxyproline and leucine, enriched in adult macaques were significantly and positively correlated with Prevotella and Prevotellamassilia. Furthermore, genus-level pangenome analysis suggested that those six common indicator bacteria can synthesize leucine and arginine as hydroxyproline and proline precursors in both humans and macaques. IMPORTANCE This study provides the first comprehensive investigation of age patterning of gut microbiota of four human populations and three nonhuman primates and found that Prevotellamassilia, Prevotella, Gemmiger, Coprococcus, Faecalibacterium, and Roseburia may be common antiaging microbial markers in both humans and nonhuman primates due to their potential metabolic capabilities for host health benefits. Our results also provide key support for using macaques as animal models in studies of the gut microbiome's role during human aging.
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Affiliation(s)
- Jianan Sang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Daohua Zhuang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Tao Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Qunfu Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary & Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
| | - Jiangkun Yu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
| | - Zhigang Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, Yunnan, China
- State Key Laboratory of Genetic Resources and Evolution, Laboratory of Evolutionary & Functional Genomics, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China
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25
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Landis GN, Riggan L, Bell HS, Vu W, Wang T, Wang I, Tejawinata FI, Ko S, Tower J. Mifepristone Increases Life Span in Female Drosophila Without Detectable Antibacterial Activity. FRONTIERS IN AGING 2022; 3:924957. [PMID: 35935727 PMCID: PMC9354577 DOI: 10.3389/fragi.2022.924957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/20/2022] [Indexed: 12/04/2022]
Abstract
Mifepristone dramatically increases the life span of mated female Drosophila while reducing the expression of innate immune response genes. Previous results indicated that mifepristone also reduced the load of aero-tolerant bacteria in mated females. Experiments were conducted to further investigate the possible role of bacteria in mifepristone life span effects. Life span was assayed in flies grown from sterilized eggs on autoclaved media and in normally cultured controls in two independent assays. Sterilization increased mated female life span (+8.3% and +57%, respectively), and the effect of mifepristone was additive (+53% and +93%, respectively). High-throughput sequencing of 16S sequences revealed that sterilization reduced the abundance of multiple species and the classes Bacteroidia, Bacilli, Actinobacteria, and Cytophagia. By contrast, mifepristone caused no decreases and instead increased the abundance of three species. Five aero-tolerant bacterial species were cultured from extracts of mated female flies, including both Gram-positive and Gram-negative species (Acetobacter sicerae, Enterococcus faecalis, Lactobacillus plantarum, Serratia rubidea, and Paenibacillus glucanolyticus). There was no detectable effect of mifepristone on the growth of these bacteria in vitro, indicating that mifepristone does not have a direct antibiotic effect. To test if antibiotics could mimic the effects of mifepristone in vivo, mated female flies were treated throughout adult life span with high concentrations of the individual antibiotics doxycycline, ampicillin, kanamycin, and streptomycin, in replicate experiments. No significant effect on life span was observed for ampicillin, kanamycin, or streptomycin, and an inconsistent benefit was observed for doxycycline. Finally, supplementation of media with Enterococcus faecalis did not alter adult female life span in the presence or absence of mifepristone. Taken together, the results indicate the life span benefits of mifepristone are not due to an antibiotic effect.
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Affiliation(s)
| | | | | | | | | | | | | | | | - John Tower
- Molecular and Computational Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA, United States
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26
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Chongtham A, Yoo JH, Chin TM, Akingbesote ND, Huda A, Marsh JL, Khoshnan A. Gut Bacteria Regulate the Pathogenesis of Huntington's Disease in Drosophila Model. Front Neurosci 2022; 16:902205. [PMID: 35757549 PMCID: PMC9215115 DOI: 10.3389/fnins.2022.902205] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/12/2022] [Indexed: 12/12/2022] Open
Abstract
Changes in the composition of gut microbiota are implicated in the pathogenesis of several neurodegenerative disorders. Here, we investigated whether gut bacteria affect the progression of Huntington’s disease (HD) in transgenic Drosophila melanogaster (fruit fly) models expressing full-length or N-terminal fragments of human mutant huntingtin (HTT) protein. We find that elimination of commensal gut bacteria by antibiotics reduces the aggregation of amyloidogenic N-terminal fragments of HTT and delays the development of motor defects. Conversely, colonization of HD flies with Escherichia coli (E. coli), a known pathobiont of human gut with links to neurodegeneration and other morbidities, accelerates HTT aggregation, aggravates immobility, and shortens lifespan. Similar to antibiotics, treatment of HD flies with small compounds such as luteolin, a flavone, or crocin a beta-carotenoid, ameliorates disease phenotypes, and promotes survival. Crocin prevents colonization of E. coli in the gut and alters the levels of commensal bacteria, which may be linked to its protective effects. The opposing effects of E. coli and crocin on HTT aggregation, motor defects, and survival in transgenic Drosophila models support the involvement of gut-brain networks in the pathogenesis of HD.
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Affiliation(s)
- Anjalika Chongtham
- Biology and Bioengineering, California Institute of Technology (Caltech), Pasadena, CA, United States
| | - Jung Hyun Yoo
- Biology and Bioengineering, California Institute of Technology (Caltech), Pasadena, CA, United States
| | - Theodore M Chin
- Biology and Bioengineering, California Institute of Technology (Caltech), Pasadena, CA, United States
| | - Ngozi D Akingbesote
- Biology and Bioengineering, California Institute of Technology (Caltech), Pasadena, CA, United States
| | - Ainul Huda
- Biology and Bioengineering, California Institute of Technology (Caltech), Pasadena, CA, United States
| | - J Lawrence Marsh
- Developmental and Cell Biology, University of California, Irvine, Irvine, CA, United States
| | - Ali Khoshnan
- Biology and Bioengineering, California Institute of Technology (Caltech), Pasadena, CA, United States
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27
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Dong Y, Ding Z, Song L, Zhang D, Xie C, Zhang S, Feng L, Liu H, Pang Q. Sodium Benzoate Delays the Development of Drosophila melanogaster Larvae and Alters Commensal Microbiota in Adult Flies. Front Microbiol 2022; 13:911928. [PMID: 35814654 PMCID: PMC9257017 DOI: 10.3389/fmicb.2022.911928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 05/16/2022] [Indexed: 12/05/2022] Open
Abstract
Sodium benzoate (SB), the sodium salt of benzoic acid, is widely used as a preservative in foods and drinks. The toxicity of SB to the human body attracted people’s attention due to the excessive use of preservatives and the increased consumption of processed and fast foods in modern society. The SB can inhibit the growth of bacteria, fungi, and yeast. However, less is known of the effect of SB on host commensal microbial community compositions and their functions. In this study, we investigated the effect of SB on the growth and development of Drosophila melanogaster larvae and whether SB affects the commensal microbial compositions and functions. We also attempted to clarify the interaction between SB, commensal microbiota and host development by detecting the response of commensal microbiota after the intervention. The results show that SB significantly retarded the development of D. melanogaster larvae, shortened the life span, and changed the commensal microbial community. In addition, SB changed the transcription level of endocrine coding genes such as ERR and DmJHAMT. These results indicate that the slow down in D. melanogaster larvae developmental timing and shortened life span of adult flies caused by SB intake may result from the changes in endocrine hormone levels and commensal microbiota. This study provided experimental data that indicate SB could affect host growth and development of D. melanogaster through altering endocrine hormone levels and commensal microbial composition.
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Affiliation(s)
- Yuling Dong
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- *Correspondence: Yuling Dong,
| | - Zhongfeng Ding
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Linxia Song
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Desheng Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, China
| | - Changjian Xie
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Shujing Zhang
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Ling Feng
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Hongliang Liu
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Qiuxiang Pang
- Institute for Anti-aging and Regenerative Medicine Research, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- Qiuxiang Pang,
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28
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Arias-Rojas A, Iatsenko I. The Role of Microbiota in Drosophila melanogaster Aging. FRONTIERS IN AGING 2022; 3:909509. [PMID: 35821860 PMCID: PMC9261426 DOI: 10.3389/fragi.2022.909509] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 04/22/2022] [Indexed: 12/24/2022]
Abstract
Intestinal microbial communities participate in essential aspects of host biology, including nutrient acquisition, development, immunity, and metabolism. During host aging, dramatic shifts occur in the composition, abundance, and function of the gut microbiota. Although such changes in the microbiota are conserved across species, most studies remain descriptive and at most suggest a correlation between age-related pathology and particular microbes. Therefore, the causal role of the microbiota in host aging has remained a challenging question, in part due to the complexity of the mammalian intestinal microbiota, most of which is not cultivable or genetically amenable. Here, we summarize recent studies in the fruit fly Drosophila melanogaster that have substantially progressed our understanding at the mechanistic level of how gut microbes can modulate host aging.
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Affiliation(s)
| | - Igor Iatsenko
- Max Planck Institute for Infection Biology, Berlin, Germany
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29
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Gubert C, Gasparotto J, H. Morais L. Convergent pathways of the gut microbiota-brain axis and neurodegenerative disorders. Gastroenterol Rep (Oxf) 2022; 10:goac017. [PMID: 35582476 PMCID: PMC9109005 DOI: 10.1093/gastro/goac017] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/22/2022] [Accepted: 04/01/2022] [Indexed: 11/14/2022] Open
Abstract
Recent research has been uncovering the role of the gut microbiota for brain health and disease. These studies highlight the role of gut microbiota on regulating brain function and behavior through immune, metabolic, and neuronal pathways. In this review we provide an overview of the gut microbiota axis pathways to lay the groundwork for upcoming sessions on the links between the gut microbiota and neurogenerative disorders. We also discuss how the gut microbiota may act as an intermediate factor between the host and the environment to mediate disease onset and neuropathology. Based on the current literature, we further examine the potential for different microbiota-based therapeutic strategies to prevent, to modify, or to halt the progress of neurodegeneration.
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Affiliation(s)
- Carolina Gubert
- Florey Institute of Neuroscience and Mental Health, Melbourne Brain Centre, University of Melbourne, Parkville, Victoria, Australia
| | - Juciano Gasparotto
- Instituto de Ciências Biomédicas, Universidade Federal de Alfenas, Rua Gabriel Monteiro da Silva, Alfenas, Minas Gerais, Brasil
| | - Livia H. Morais
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA, USA
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30
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Comprehensive 16S rRNA and metagenomic data from the gut microbiome of aging and rejuvenation mouse models. Sci Data 2022; 9:197. [PMID: 35538082 PMCID: PMC9091251 DOI: 10.1038/s41597-022-01308-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 04/01/2022] [Indexed: 11/08/2022] Open
Abstract
The gut microbiota is associated with the health and longevity of the host. A few methods, such as fecal microbiota transplantation and oral administration of probiotics, have been applied to alter the gut microbiome and promote healthy aging. The changes in host microbiomes still remain poorly understood. Here, we characterized both the changes in gut microbial communities and their functional potential derived from colon samples in mouse models during aging. We achieved this through four procedures including co-housing, serum injection, parabiosis, and oral administration of Akkermansia muciniphila as probiotics using bacterial 16 S rRNA sequencing and shotgun metagenomic sequencing. The dataset comprised 16 S rRNA sequencing (36,249,200 paired-end reads, 107 sequencing data) and metagenomic sequencing data (307,194,369 paired-end reads, 109 sequencing data), characterizing the taxonomy of bacterial communities and their functional potential during aging and rejuvenation. The generated data expand the resources of the gut microbiome related to aging and rejuvenation and provide a useful dataset for research on developing therapeutic strategies to achieve healthy active aging.
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31
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Transcriptome Analysis of the Nematodes Caenorhabditis elegans and Litoditis marina in Different Food Environments. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2022. [DOI: 10.3390/jmse10050580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Diets regulate animal development, reproduction, and lifespan. However, the underlying molecular mechanisms remain elusive. We previously showed that a chemically defined CeMM diet attenuates the development and promotes the longevity of C. elegans, but whether it impacts other nematodes is unknown. Here, we studied the effects of the CeMM diet on the development and longevity of the marine nematode Litoditis marina, which belongs to the same family as C. elegans. We further investigated genome-wide transcriptional responses to the CeMM and OP50 diets for both nematodes, respectively. We observed that the CeMM diet attenuated L. marina development but did not extend its lifespan. Through KEEG enrichment analysis, we found that many of the FOXO DAF-16 signaling and lysosome and xenobiotic metabolism related genes were significantly increased in C. elegans on the CeMM diet, which might contribute to the lifespan extension of C. elegans. Notably, we found that the expression of lysosome and xenobiotic metabolism pathway genes was significantly down-regulated in L. marina on CeMM, which might explain why the CeMM diet could not promote the lifespan of L. marina compared to bacterial feeding. Additionally, the down-regulation of several RNA transcription and protein generation and related processes genes in C. elegans on CeMM might not only be involved in extending longevity, but also contribute to attenuating the development of C. elegans on the CeMM diet, while the down-regulation of unsaturated fatty acids synthesis genes in L. marina might contribute to slow down its growth while on CeMM. This study provided important insights into how different diets regulate development and lifespan, and further genetic analysis of the candidate gene(s) of development and longevity will facilitate exploring the molecular mechanisms underlying how diets regulate animal physiology and health in the context of variable nutritional environments.
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Neophytou C, Pitsouli C. How Gut Microbes Nurture Intestinal Stem Cells: A Drosophila Perspective. Metabolites 2022; 12:169. [PMID: 35208243 PMCID: PMC8878600 DOI: 10.3390/metabo12020169] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 11/16/2022] Open
Abstract
Host-microbiota interactions are key modulators of host physiology and behavior. Accumulating evidence suggests that the complex interplay between microbiota, diet and the intestine controls host health. Great emphasis has been given on how gut microbes have evolved to harvest energy from the diet to control energy balance, host metabolism and fitness. In addition, many metabolites essential for intestinal homeostasis are mainly derived from gut microbiota and can alleviate nutritional imbalances. However, due to the high complexity of the system, the molecular mechanisms that control host-microbiota mutualism, as well as whether and how microbiota affects host intestinal stem cells (ISCs) remain elusive. Drosophila encompasses a low complexity intestinal microbiome and has recently emerged as a system that might uncover evolutionarily conserved mechanisms of microbiota-derived nutrient ISC regulation. Here, we review recent studies using the Drosophila model that directly link microbiota-derived metabolites and ISC function. This research field provides exciting perspectives for putative future treatments of ISC-related diseases based on monitoring and manipulating intestinal microbiota.
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Affiliation(s)
| | - Chrysoula Pitsouli
- Department of Biological Sciences, University of Cyprus, 1 University Avenue, Aglantzia, Nicosia 2109, Cyprus;
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High Doses of Silica Nanoparticles Obtained by Microemulsion and Green Routes Compromise Human Alveolar Cells Morphology and Stiffness Differently. Bioinorg Chem Appl 2022; 2022:2343167. [PMID: 35140761 PMCID: PMC8820933 DOI: 10.1155/2022/2343167] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/15/2021] [Accepted: 01/06/2022] [Indexed: 12/30/2022] Open
Abstract
Among all the inorganic nanomaterials used in commercial products, industry, and medicine, the amorphous silica nanoparticles (SiO2 NPs) appeared to be often tolerated in living organisms. However, despite several toxicity studies, some concerns about the exposure to high doses of SiO2 NPs with different sizes were raised. Then, we used the microemulsion method to obtain stable SiO2 NPs having different sizes (110 nm, 50 nm, and 25 nm). In addition, a new one-pot green synthetic route using leaves extract of Laurus nobilis was performed, obtaining monodispersed ultrasmall SiO2 NPs without the use of dangerous chemicals. The NPs achieved by microemulsion were further functionalized with amino groups making the NPs surface positively charged. Then, high doses of SiO2 NPs (1 mg/mL and 3 mg/mL) achieved from the two routes, having different sizes and surface charges, were used to assess their impact on human alveolar cells (A549), being the best cell model mimicking the inhalation route. Cell viability and caspase-3 induction were analyzed as well as the cellular uptake, obtaining that the smallest (25 nm) and positive-charged NPs were more able to induce cytotoxicity, reaching values of about 60% of cell death. Surprisingly, cells incubated with green SiO2 NPs did not show strong toxicity, and 70% of them remained vital. This result was unusual for ultrasmall nanoobjects, generally highly toxic. The actin reorganization, nuclear morphology alteration, and cell membrane elasticity analyses confirmed the trend achieved from the biological assays. The obtained data demonstrate that the increase in cellular softness, i.e., the decrease in Young’s modulus, could be associated with the smaller and positive NPs, recording values of about 3 kPa. On the contrary, green NPs triggered a slight decrease of stiffness values (c.a. 6 kPa) compared to the untreated cells (c.a. 8 kPa). As the softer cells were implicated in cancer progression and metastasization, this evidence strongly supported the idea of a link between the cell elasticity and physicochemical properties of NPs that, in turn, influenced the interaction with the cell membrane. Thus, the green SiO2 NPs compromised cells to a lesser extent than the other SiO2 NPs types. In this scenario, the elasticity evaluation could be an interesting tool to understand the toxicity of NPs with the aim of predicting some pathological phenomena associated with their exposure.
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Oleson BJ, Bazopoulou D, Jakob U. Shaping longevity early in life: developmental ROS and H3K4me3 set the clock. Cell Cycle 2021; 20:2337-2347. [PMID: 34657571 PMCID: PMC8794500 DOI: 10.1080/15384101.2021.1986317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Studies in Caenorhabditis elegans have revealed that even a genetically identical population of animals exposed to the same environment displays a remarkable level of variability in individual lifespan. Stochasticity factors, occurring seemingly by chance or at random, are thought to account for a large part of this variability. Recent studies in our lab using C. elegans now revealed that naturally occurring variations in the levels of reactive oxygen species experienced early in life contribute to the observed lifespan variability, and likely serve as stochasticity factors in aging. Here, we will highlight how developmental events can positively shape lifespan and stress responses via a redox-sensitive epigenetic regulator, and discuss the outstanding questions and future directions on the complex relationship between reactive oxygen species and aging.
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Affiliation(s)
- Bryndon J. Oleson
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Daphne Bazopoulou
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Ursula Jakob
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, USA,CONTACT Ursula Jakob Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, USA
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Chen S, Chen L, Qi Y, Xu J, Ge Q, Fan Y, Chen D, Zhang Y, Wang L, Hou T, Yang X, Xi Y, Si J, Kang L, Wang L. Bifidobacterium adolescentis regulates catalase activity and host metabolism and improves healthspan and lifespan in multiple species. NATURE AGING 2021; 1:991-1001. [PMID: 37118342 DOI: 10.1038/s43587-021-00129-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 09/27/2021] [Indexed: 04/30/2023]
Abstract
To identify candidate bacteria associated with aging, we performed fecal microbiota sequencing in young, middle-aged and older adults, and found lower Bifidobacterium adolescentis abundance in older individuals aged ≥60 years. Dietary supplementation of B. adolescentis improved osteoporosis and neurodegeneration in a mouse model of premature aging (Terc-/-) and increased healthspan and lifespan in Drosophila melanogaster and Caenorhabditis elegans. B. adolescentis supplementation increased the activity of the catalase (CAT) enzyme in skeletal muscle and brain tissue from Terc-/- mice, and suppressed cellular senescence in mouse embryonic fibroblasts. Transgenic deletion of catalase (ctl-2) in C. elegans abolished the effects of B. adolescentis on the lifespan and healthspan. B. adolescentis feeding also led to changes in oxidative stress-associated metabolites in Terc-/- mouse feces. These results suggest a role for B. adolescentis in improving the healthspan and lifespan through the regulation of CAT activity and host metabolism.
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Affiliation(s)
- Shujie Chen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Luyi Chen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Yadong Qi
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Jilei Xu
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Qiwei Ge
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
- Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
| | - Yuedan Fan
- Department of Neurobiology and Department of Neurosurgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Zhejiang, China
| | - Du Chen
- Department of Neurobiology and Department of Neurosurgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Zhejiang, China
| | - Yawen Zhang
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Lan Wang
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Tongyao Hou
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China
| | - Xiaohang Yang
- Institute of Genetics and Department of Genetics, Division of Human Reproduction and Developmental Genetics of the Women's Hospital, Zhejiang University, Zhejiang, China
| | - Yongmei Xi
- Institute of Genetics and Department of Genetics, Division of Human Reproduction and Developmental Genetics of the Women's Hospital, Zhejiang University, Zhejiang, China
| | - Jianmin Si
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China.
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China.
| | - Lijun Kang
- Department of Neurobiology and Department of Neurosurgery of the First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, Zhejiang, China.
| | - Liangjing Wang
- Prevention and Treatment Research Center for Senescent Disease, Zhejiang University School of Medicine, Zhejiang, China.
- Department of Gastroenterology, Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.
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36
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Cui C, Shen D, Zuo D, Ye X. Neuroprotective effects of sonochemical- synthesized SiO2 nanoparticles in vivo models of ischemic/reperfusion injury in stroke. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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37
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Horizontal gene transfer-mediated bacterial strain variation affects host fitness in Drosophila. BMC Biol 2021; 19:187. [PMID: 34565363 PMCID: PMC8474910 DOI: 10.1186/s12915-021-01124-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 08/13/2021] [Indexed: 02/07/2023] Open
Abstract
Background How microbes affect host fitness and environmental adaptation has become a fundamental research question in evolutionary biology. To better understand the role of microbial genomic variation for host fitness, we tested for associations of bacterial genomic variation and Drosophila melanogaster offspring number in a microbial Genome Wide Association Study (GWAS). Results We performed a microbial GWAS, leveraging strain variation in the genus Gluconobacter, a genus of bacteria that are commonly associated with Drosophila under natural conditions. We pinpoint the thiamine biosynthesis pathway (TBP) as contributing to differences in fitness conferred to the fly host. While an effect of thiamine on fly development has been described, we show that strain variation in TBP between bacterial isolates from wild-caught D. melanogaster contributes to variation in offspring production by the host. By tracing the evolutionary history of TBP genes in Gluconobacter, we find that TBP genes were most likely lost and reacquired by horizontal gene transfer (HGT). Conclusion Our study emphasizes the importance of strain variation and highlights that HGT can add to microbiome flexibility and potentially to host adaptation. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-021-01124-y.
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Lynn MA, Eden G, Ryan FJ, Bensalem J, Wang X, Blake SJ, Choo JM, Chern YT, Sribnaia A, James J, Benson SC, Sandeman L, Xie J, Hassiotis S, Sun EW, Martin AM, Keller MD, Keating DJ, Sargeant TJ, Proud CG, Wesselingh SL, Rogers GB, Lynn DJ. The composition of the gut microbiota following early-life antibiotic exposure affects host health and longevity in later life. Cell Rep 2021; 36:109564. [PMID: 34433065 DOI: 10.1016/j.celrep.2021.109564] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 06/02/2021] [Accepted: 07/29/2021] [Indexed: 12/13/2022] Open
Abstract
Studies investigating whether there is a causative link between the gut microbiota and lifespan have largely been restricted to invertebrates or to mice with a reduced lifespan because of a genetic deficiency. We investigate the effect of early-life antibiotic exposure on otherwise healthy, normal chow-fed, wild-type mice, monitoring these mice for more than 700 days in comparison with untreated control mice. We demonstrate the emergence of two different low-diversity community types, post-antibiotic microbiota (PAM) I and PAM II, following antibiotic exposure. PAM II but not PAM I mice have impaired immunity, increased insulin resistance, and evidence of increased inflammaging in later life as well as a reduced lifespan. Our data suggest that differences in the composition of the gut microbiota following antibiotic exposure differentially affect host health and longevity in later life.
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Affiliation(s)
- Miriam A Lynn
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Georgina Eden
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Feargal J Ryan
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Julien Bensalem
- Hopwood Centre for Neurobiology, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Xuemin Wang
- Lifelong Health Theme, South Australian Health & Medical Research Institute, Adelaide, SA 5000, Australia; School of Biological Sciences, University of Adelaide, Adelaide, SA 5005, Australia
| | - Stephen J Blake
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Jocelyn M Choo
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - Yee Tee Chern
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Anastasia Sribnaia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Jane James
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Saoirse C Benson
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - Lauren Sandeman
- Lifelong Health Theme, South Australian Health & Medical Research Institute, Adelaide, SA 5000, Australia
| | - Jianling Xie
- Lifelong Health Theme, South Australian Health & Medical Research Institute, Adelaide, SA 5000, Australia
| | - Sofia Hassiotis
- Hopwood Centre for Neurobiology, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Emily W Sun
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - Alyce M Martin
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - Marianne D Keller
- Preclinical, Imaging & Research Laboratories (PIRL), South Australian Health & Medical Research Institute, Adelaide, SA 5000, Australia
| | - Damien J Keating
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - Timothy J Sargeant
- Hopwood Centre for Neurobiology, Lifelong Health Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia
| | - Christopher G Proud
- Lifelong Health Theme, South Australian Health & Medical Research Institute, Adelaide, SA 5000, Australia; School of Biological Sciences, University of Adelaide, Adelaide, SA 5005, Australia
| | - Steve L Wesselingh
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - Geraint B Rogers
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia
| | - David J Lynn
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA 5001, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA 5042, Australia.
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39
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Kong Y, Wang L, Jiang B. The Role of Gut Microbiota in Aging and Aging Related Neurodegenerative Disorders: Insights from Drosophila Model. Life (Basel) 2021; 11:life11080855. [PMID: 34440599 PMCID: PMC8399269 DOI: 10.3390/life11080855] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 02/06/2023] Open
Abstract
Aging is characterized by a time dependent impairment of physiological function and increased susceptibility to death. It is the major risk factor for neurodegeneration. Neurodegenerative disorders including Alzheimer's disease (AD) and Parkinson's disease (PD) are the main causes of dementia in the old population. Gut microbiota is a community of microorganisms colonized in the gastrointestinal (GI) tract. The alteration of gut microbiota has been proved to be associated with aging and aging related neurodegeneration. Drosophila is a powerful tool to study microbiota-mediated physiological and pathological functions. Here, we summarize the recent advances using Drosophila as model organisms to clarify the molecular mechanisms and develop a therapeutic method targeting microbiota in aging and aging-related neurodegenerative disorders.
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Affiliation(s)
- Yan Kong
- Department of Biochemistry and Molecular Biology, School of Medicine, Southeast University, Nanjing 210009, China;
- Correspondence:
| | - Liyuan Wang
- Department of Biochemistry and Molecular Biology, School of Medicine, Southeast University, Nanjing 210009, China;
| | - Baichun Jiang
- The Key Laboratory of Experimental Teratology, Ministry of Education, Department of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan 250012, China;
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Yamashita K, Oi A, Kosakamoto H, Yamauchi T, Kadoguchi H, Kuraishi T, Miura M, Obata F. Activation of innate immunity during development induces unresolved dysbiotic inflammatory gut and shortens lifespan. Dis Model Mech 2021; 14:271978. [PMID: 34448472 PMCID: PMC8405880 DOI: 10.1242/dmm.049103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/29/2021] [Indexed: 12/16/2022] Open
Abstract
Early-life inflammatory response is associated with risks of age-related pathologies. How transient immune signalling activity during animal development influences life-long fitness is not well understood. Using Drosophila as a model, we find that activation of innate immune pathway IMD signalling in the developing larvae increases adult starvation resistance, decreases food intake, and shortens organismal lifespan. Interestingly, lifespan is shortened by the IMD activation in the larval gut and fat body, while starvation resistance and food intake are altered by that in neurons. The adult flies developed with IMD activation show sustained IMD activity in the gut, despite complete tissue renewal during metamorphosis. The larval IMD activation increases an immuno-stimulative bacterial species Gluconobacter sp. in the gut microbiome, and this dysbiosis is persistent to adulthood. Removing gut microbiota by antibiotics in adult mitigates intestinal immune activation and rescues the shortened lifespan. This study demonstrates that early-life immune activation triggers long-term physiological changes as highlighted as an irreversible gut microbiota alteration, prolonged inflammatory intestine, and concomitant shortening of the organismal lifespan.
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Affiliation(s)
- Kyoko Yamashita
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Ayano Oi
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.,Laboratory for Nutritional Biology, RIKEN Center for Biosystems Dynamics Research, Kobe 650-0047, Japan
| | - Hina Kosakamoto
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.,Laboratory for Nutritional Biology, RIKEN Center for Biosystems Dynamics Research, Kobe 650-0047, Japan
| | - Toshitaka Yamauchi
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Hibiki Kadoguchi
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Shizenken, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Takayuki Kuraishi
- Faculty of Pharmacy, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Shizenken, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Masayuki Miura
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Fumiaki Obata
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.,Laboratory for Nutritional Biology, RIKEN Center for Biosystems Dynamics Research, Kobe 650-0047, Japan.,Laboratory of Molecular Cell Biology and Development, Graduate School of Biostudies, Kyoto University, Kyoto 606-8501, Japan
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41
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Schissel M, Best R, Liesemeyer S, Tan YD, Carlson DJ, Shaffer JJ, Avuthu N, Guda C, Carlson KA. Effect of Nora virus infection on native gut bacterial communities of Drosophila melanogaster. AIMS Microbiol 2021; 7:216-237. [PMID: 34250376 PMCID: PMC8255909 DOI: 10.3934/microbiol.2021014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/07/2021] [Indexed: 11/18/2022] Open
Abstract
Gastrointestinal microflora is a key component in the maintenance of health and longevity across many species. In humans and mice, nonpathogenic viruses present in the gastrointestinal tract enhance the effects of the native bacterial microbiota. However, it is unclear whether nonpathogenic gastrointestinal viruses, such as Nora virus that infects Drosophila melanogaster, lead to similar observations. Longevity analysis of Nora virus infected (NV+) and uninfected (NV-) D. melanogaster in relationship to presence (B+) or absence (B-) of the native gut bacteria using four different treatment groups, NV+/B+, NV+/B-, NV-/B+, and NV-/B-, was conducted. Data from the longevity results were tested via Kaplan-Meier analysis and demonstrated that Nora virus can be detrimental to the longevity of the organism, whereas bacterial presence is beneficial. These data led to the hypothesis that gastrointestinal bacterial composition varies from NV+ to NV- flies. To test this, NV+ and NV- virgin female flies were collected and aged for 4 days. Surface sterilization followed by dissections of the fat body and the gastrointestinal tract, divided into crop (foregut), midgut, and hindgut, were performed. Ribosomal 16S DNA samples were sequenced to determine the bacterial communities that comprise the microflora in the gastrointestinal tract of NV+ and NV- D. melanogaster. When analyzing operational taxonomic units (OTUs), the data demonstrate that the NV+ samples consist of more OTUs than NV- samples. The NV+ samples were both more rich and diverse in OTUs compared to NV-. When comparing whole body samples to specific organs and organ sections, the whole fly was more diverse in OTUs, whereas the crop was the most rich. These novel data are pertinent in describing where Nora virus infection may be occurring within the gastrointestinal tract, as well as continuing discussion between the relationship of persistent viral and bacterial interaction.
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Affiliation(s)
- Makayla Schissel
- Biology Department, University of Nebraska at Kearney, 2401 11 Ave, Kearney, NE 68849, USA
| | - Rebecca Best
- Biology Department, University of Nebraska at Kearney, 2401 11 Ave, Kearney, NE 68849, USA
| | - Shelby Liesemeyer
- Biology Department, University of Nebraska at Kearney, 2401 11 Ave, Kearney, NE 68849, USA
| | - Yuan-De Tan
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, 985805 Nebraska Medical Center, Omaha, NE 68198-5805, USA
| | - Darby J. Carlson
- Biology Department, University of Nebraska at Kearney, 2401 11 Ave, Kearney, NE 68849, USA
| | - Julie J. Shaffer
- Biology Department, University of Nebraska at Kearney, 2401 11 Ave, Kearney, NE 68849, USA
| | - Nagavardhini Avuthu
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, 985805 Nebraska Medical Center, Omaha, NE 68198-5805, USA
| | - Chittibabu Guda
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, 985805 Nebraska Medical Center, Omaha, NE 68198-5805, USA
| | - Kimberly A. Carlson
- Biology Department, University of Nebraska at Kearney, 2401 11 Ave, Kearney, NE 68849, USA
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Arango RA, Schoville SD, Currie CR, Carlos-Shanley C. Experimental Warming Reduces Survival, Cold Tolerance, and Gut Prokaryotic Diversity of the Eastern Subterranean Termite, Reticulitermes flavipes (Kollar). Front Microbiol 2021; 12:632715. [PMID: 34079527 PMCID: PMC8166220 DOI: 10.3389/fmicb.2021.632715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 04/15/2021] [Indexed: 12/26/2022] Open
Abstract
Understanding the effects of environmental disturbances on insects is crucial in predicting the impact of climate change on their distribution, abundance, and ecology. As microbial symbionts are known to play an integral role in a diversity of functions within the insect host, research examining how organisms adapt to environmental fluctuations should include their associated microbiota. In this study, subterranean termites [Reticulitermes flavipes (Kollar)] were exposed to three different temperature treatments characterized as low (15°C), medium (27°C), and high (35°C). Results suggested that pre-exposure to cold allowed termites to stay active longer in decreasing temperatures but caused termites to freeze at higher temperatures. High temperature exposure had the most deleterious effects on termites with a significant reduction in termite survival as well as reduced ability to withstand cold stress. The microbial community of high temperature exposed termites also showed a reduction in bacterial richness and decreased relative abundance of Spirochaetes, Elusimicrobia, and methanogenic Euryarchaeota. Our results indicate a potential link between gut bacterial symbionts and termite's physiological response to environmental changes and highlight the need to consider microbial symbionts in studies relating to insect thermosensitivity.
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Affiliation(s)
- Rachel A. Arango
- USDA Forest Service, Forest Products Laboratory, Madison, WI, United States
| | - Sean D. Schoville
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, United States
| | - Cameron R. Currie
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, United States
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Kosakamoto H, Yamauchi T, Akuzawa-Tokita Y, Nishimura K, Soga T, Murakami T, Mori H, Yamamoto K, Miyazaki R, Koto A, Miura M, Obata F. Local Necrotic Cells Trigger Systemic Immune Activation via Gut Microbiome Dysbiosis in Drosophila. Cell Rep 2021; 32:107938. [PMID: 32698005 DOI: 10.1016/j.celrep.2020.107938] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 04/07/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023] Open
Abstract
Necrotic cells elicit an inflammatory response through their endogenous factors with damage-associated molecular patterns. Blocking apoptosis in Drosophila wings leads to the necrosis-driven systemic immune response by unknown mechanisms. Here, we demonstrate that immune activation in response to necrotic cells is mediated by commensal gut microbiota. Removing the microbiome attenuates hyperactivation of the innate immune signaling IMD pathway in necrosis-induced flies. Necrotic cells in wings trigger Gluconobacter expansion in the gut. An isolated Gluconobacter sp. strain is sufficient for pathological IMD activation in necrosis-induced flies, while it is not inflammatory for control animals. In addition, bacterial colonization shifts the host metabolome and shortens the lifespan of necrosis-induced flies. This study shows that local necrosis triggers a pathological systemic inflammatory response through interaction between the host and the dysbiotic gut microbiome.
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Affiliation(s)
- Hina Kosakamoto
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toshitaka Yamauchi
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoriko Akuzawa-Tokita
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kei Nishimura
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tomoyoshi Soga
- Institute for Biosciences, Keio University, Tsuruoka, Yamagata 997-0052, Japan
| | - Takumi Murakami
- Department of Informatics, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Hiroshi Mori
- Department of Informatics, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Kyosuke Yamamoto
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8566, Japan
| | - Ryo Miyazaki
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8566, Japan; Computational Bio Big Data Open Innovation Laboratory (CBBD-OIL), AIST, Tokyo 169-8555, Japan
| | - Akiko Koto
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8566, Japan; Computational Bio Big Data Open Innovation Laboratory (CBBD-OIL), AIST, Tokyo 169-8555, Japan
| | - Masayuki Miura
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Fumiaki Obata
- Department of Genetics, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.
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44
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Tauffenberger A, Magistretti PJ. Reactive Oxygen Species: Beyond Their Reactive Behavior. Neurochem Res 2021; 46:77-87. [PMID: 33439432 PMCID: PMC7829243 DOI: 10.1007/s11064-020-03208-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 11/02/2020] [Accepted: 12/15/2020] [Indexed: 12/13/2022]
Abstract
Cellular homeostasis plays a critical role in how an organism will develop and age. Disruption of this fragile equilibrium is often associated with health degradation and ultimately, death. Reactive oxygen species (ROS) have been closely associated with health decline and neurological disorders, such as Alzheimer's disease or Parkinson's disease. ROS were first identified as by-products of the cellular activity, mainly mitochondrial respiration, and their high reactivity is linked to a disruption of macromolecules such as proteins, lipids and DNA. More recent research suggests more complex function of ROS, reaching far beyond the cellular dysfunction. ROS are active actors in most of the signaling cascades involved in cell development, proliferation and survival, constituting important second messengers. In the brain, their impact on neurons and astrocytes has been associated with synaptic plasticity and neuron survival. This review provides an overview of ROS function in cell signaling in the context of aging and degeneration in the brain and guarding the fragile balance between health and disease.
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Affiliation(s)
- Arnaud Tauffenberger
- King Abdullah University of Science and Technology, Thuwal, 23955, Kingdom of Saudi Arabia.
| | - Pierre J Magistretti
- King Abdullah University of Science and Technology, Thuwal, 23955, Kingdom of Saudi Arabia.
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45
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Polan DM, Alansari M, Lee B, Grewal SS. Early-life hypoxia alters adult physiology and reduces stress resistance and lifespan in Drosophila. J Exp Biol 2020; 223:jeb226027. [PMID: 32988998 PMCID: PMC10668336 DOI: 10.1242/jeb.226027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 09/18/2020] [Indexed: 08/25/2023]
Abstract
In many animals, short-term fluctuations in environmental conditions in early life often exert long-term effects on adult physiology. In Drosophila, one ecologically relevant environmental variable is hypoxia. Drosophila larvae live on rotting, fermenting food rich in microorganisms, an environment characterized by low ambient oxygen. They have therefore evolved to tolerate hypoxia. Although the acute effects of hypoxia in larvae have been well studied, whether early-life hypoxia affects adult physiology and fitness is less clear. Here, we show that Drosophila exposed to hypoxia during their larval period subsequently show reduced starvation stress resistance and shorter lifespan as adults, with these effects being stronger in males. We find that these effects are associated with reduced whole-body insulin signaling but elevated TOR kinase activity, a manipulation known to reduce lifespan. We also identify a sexually dimorphic effect of larval hypoxia on adult nutrient storage and mobilization. Thus, we find that males, but not females, show elevated levels of lipids and glycogen. Moreover, we see that both males and females exposed to hypoxia as larvae show defective lipid mobilization upon starvation stress as adults. These data demonstrate how early-life hypoxia can exert persistent, sexually dimorphic, long-term effects on Drosophila adult physiology and lifespan.
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Affiliation(s)
- Danielle M Polan
- Clark H. Smith Brain Tumour Centre, Arnie Charbonneau Cancer Institute, University of Calgary, Alberta T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Alberta T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology Calgary, University of Calgary, Alberta T2N 4N1, Canada
| | - Mohammed Alansari
- Clark H. Smith Brain Tumour Centre, Arnie Charbonneau Cancer Institute, University of Calgary, Alberta T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Alberta T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology Calgary, University of Calgary, Alberta T2N 4N1, Canada
| | - Byoungchun Lee
- Clark H. Smith Brain Tumour Centre, Arnie Charbonneau Cancer Institute, University of Calgary, Alberta T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Alberta T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology Calgary, University of Calgary, Alberta T2N 4N1, Canada
| | - Savraj S Grewal
- Clark H. Smith Brain Tumour Centre, Arnie Charbonneau Cancer Institute, University of Calgary, Alberta T2N 4N1, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Alberta T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology Calgary, University of Calgary, Alberta T2N 4N1, Canada
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46
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Negroni MA, Segers FHID, Vogelweith F, Foitzik S. Immune challenge reduces gut microbial diversity and triggers fertility-dependent gene expression changes in a social insect. BMC Genomics 2020; 21:816. [PMID: 33225893 PMCID: PMC7682046 DOI: 10.1186/s12864-020-07191-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/26/2020] [Indexed: 01/09/2023] Open
Abstract
Background The gut microbiome can influence life history traits associated with host fitness such as fecundity and longevity. In most organisms, these two life history traits are traded-off, while they are positively linked in social insects. In ants, highly fecund queens can live for decades, while their non-reproducing workers exhibit much shorter lifespans. Yet, when fertility is induced in workers by death or removal of the queen, worker lifespan can increase. It is unclear how this positive link between fecundity and longevity is achieved and what role the gut microbiome and the immune system play in this. To gain insights into the molecular regulation of lifespan in social insects, we investigated fat body gene expression and gut microbiome composition in workers of the ant Temnothorax rugatulus in response to an experimental induction of fertility and an immune challenge. Results Fertile workers upregulated several molecular repair mechanisms, which could explain their extended lifespan. The immune challenge altered the expression of several thousand genes in the fat body, including many immune genes, and, interestingly, this transcriptomic response depended on worker fertility. For example, only fertile, immune-challenged workers upregulated genes involved in the synthesis of alpha-ketoglutarate, an immune system regulator, which extends the lifespan in Caenorhabditis elegans by down-regulating the TOR pathway and reducing oxidant production. Additionally, we observed a dramatic loss in bacterial diversity in the guts of the ants within a day of the immune challenge. Yet, bacterial density did not change, so that the gut microbiomes of many immune challenged workers consisted of only a single or a few bacterial strains. Moreover, the expression of immune genes was linked to the gut microbiome composition, suggesting that the ant host can regulate the microbiome in its gut. Conclusions Immune system flare-ups can have negative consequence on gut microbiome diversity, pointing to a previously underrated cost of immunity. Moreover, our results provide important insights into shifts in the molecular regulation of fertility and longevity associated with insect sociality.
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Affiliation(s)
- Matteo Antoine Negroni
- Institute of Molecular and Organismic Evolution, Johannes Gutenberg University, Hanns-Dieter-Hüsch-Weg 15, 55128, Mainz, Germany
| | - Francisca H I D Segers
- Institute of Molecular and Organismic Evolution, Johannes Gutenberg University, Hanns-Dieter-Hüsch-Weg 15, 55128, Mainz, Germany.,Department for Applied Bioinformatics, Inst. of Cell Biology and Neuroscience, Goethe University, Frankfurt, Germany.,LOEWE Centre for Translational Biodiversity Genomics (LOEWE-TBG), Frankfurt, Germany
| | - Fanny Vogelweith
- Institute of Molecular and Organismic Evolution, Johannes Gutenberg University, Hanns-Dieter-Hüsch-Weg 15, 55128, Mainz, Germany.,M2i Biocontrol, Parnac, France
| | - Susanne Foitzik
- Institute of Molecular and Organismic Evolution, Johannes Gutenberg University, Hanns-Dieter-Hüsch-Weg 15, 55128, Mainz, Germany.
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47
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Interactions between the microbiome and mating influence the female's transcriptional profile in Drosophila melanogaster. Sci Rep 2020; 10:18168. [PMID: 33097776 PMCID: PMC7584617 DOI: 10.1038/s41598-020-75156-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023] Open
Abstract
Drosophila melanogaster females undergo a variety of post-mating changes that influence their activity, feeding behavior, metabolism, egg production and gene expression. These changes are induced either by mating itself or by sperm or seminal fluid proteins. In addition, studies have shown that axenic females-those lacking a microbiome-have altered fecundity compared to females with a microbiome, and that the microbiome of the female's mate can influence reproductive success. However, the extent to which post-mating changes in transcript abundance are affected by microbiome state is not well-characterized. Here we investigated fecundity and the post-mating transcript abundance profile of axenic or control females after mating with either axenic or control males. We observed interactions between the female's microbiome and her mating status: transcripts of genes involved in reproduction and genes with neuronal functions were differentially abundant depending on the females' microbiome status, but only in mated females. In addition, immunity genes showed varied responses to either the microbiome, mating, or a combination of those two factors. We further observed that the male's microbiome status influences the fecundity of both control and axenic females, while only influencing the transcriptional profile of axenic females. Our results indicate that the microbiome plays a vital role in the post-mating switch of the female's transcriptome.
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48
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Grenier T, Leulier F. How commensal microbes shape the physiology of Drosophila melanogaster. CURRENT OPINION IN INSECT SCIENCE 2020; 41:92-99. [PMID: 32836177 DOI: 10.1016/j.cois.2020.08.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
The interactions between animals and their commensal microbes profoundly influence the host's physiology. In the last decade, Drosophila melanogaster has been extensively used as a model to study host-commensal microbes interactions. Here, we review the most recent advances in this field. We focus on studies that extend our understanding of the molecular mechanisms underlying the effects of commensal microbes on Drosophila's development and lifespan. We emphasize how commensal microbes influence nutrition and the intestinal epithelium homeostasis; how they elicit immune tolerance mechanisms and how these physiological processes are interconnected. Finally, we discuss the importance of diets and microbial strains and show how they can be confounding factors of microbe mediated host phenotypes.
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Affiliation(s)
- Theodore Grenier
- Univ Lyon, Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5242, 46, allée d'Italie, 69007, Lyon, France
| | - François Leulier
- Univ Lyon, Institut de Génomique Fonctionnelle de Lyon, Ecole Normale Supérieure de Lyon, Université Claude Bernard Lyon 1, CNRS UMR5242, 46, allée d'Italie, 69007, Lyon, France.
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49
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Yamauchi T, Oi A, Kosakamoto H, Akuzawa-Tokita Y, Murakami T, Mori H, Miura M, Obata F. Gut Bacterial Species Distinctively Impact Host Purine Metabolites during Aging in Drosophila. iScience 2020; 23:101477. [PMID: 32916085 PMCID: PMC7520893 DOI: 10.1016/j.isci.2020.101477] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/16/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022] Open
Abstract
Gut microbiota impacts the host metabolome and affects its health span. How bacterial species in the gut influence age-dependent metabolic alteration has not been elucidated. Here we show in Drosophila melanogaster that allantoin, an end product of purine metabolism, is increased during aging in a microbiota-dependent manner. Allantoin levels are low in young flies but are commonly elevated upon lifespan-shortening dietary manipulations such as high-purine, high-sugar, or high-yeast feeding. Removing Acetobacter persici in the Drosophila microbiome attenuated age-dependent allantoin increase. Mono-association with A. persici, but not with Lactobacillus plantarum, increased allantoin in aged flies. A. persici increased allantoin via activation of innate immune signaling IMD pathway in the renal tubules. On the other hand, analysis of bacteria-conditioned diets revealed that L. plantarum can decrease allantoin by reducing purines in the diet. These data together demonstrate species-specific regulations of host purine levels by the gut microbiome.
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Affiliation(s)
- Toshitaka Yamauchi
- Department of Genetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ayano Oi
- Department of Genetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hina Kosakamoto
- Department of Genetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoriko Akuzawa-Tokita
- Department of Genetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takumi Murakami
- Department of Informatics, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Hiroshi Mori
- Department of Informatics, National Institute of Genetics, Mishima, Shizuoka 411-8540, Japan
| | - Masayuki Miura
- Department of Genetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Fumiaki Obata
- Department of Genetics, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
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50
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Abstract
The gut microbiome is increasingly implicated in modifying susceptibility to and progression of neurodegenerative diseases (NDs). In this review, we discuss roles for the microbiome in aging and in NDs. In particular, we summarize findings from human studies on microbiome alterations in Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis, and Huntington's disease. We assess animal studies of genetic and environmental models for NDs that investigate how manipulations of the microbiome causally impact the development of behavioral and neuropathological endophenotypes of disease. We additionally evaluate the likely immunological, neuronal, and metabolic mechanisms for how the gut microbiota may modulate risk for NDs. Finally, we speculate on cross-cutting features for microbial influences across multiple NDs and consider the potential for microbiome-targeted interventions for NDs.
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Affiliation(s)
- P Fang
- Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - S A Kazmi
- Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - K G Jameson
- Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - E Y Hsiao
- Department of Integrative Biology & Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
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