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Li M, Macro J, Huggins BJ, Meadows K, Mishra D, Martin D, Kannan K, Rogina B. Extended lifespan in female Drosophila melanogaster through late-life calorie restriction. GeroScience 2024; 46:4017-4035. [PMID: 38954128 PMCID: PMC11335708 DOI: 10.1007/s11357-024-01233-w] [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: 07/14/2023] [Accepted: 05/29/2024] [Indexed: 07/04/2024] Open
Abstract
Calorie restriction has many beneficial effects on healthspan and lifespan in a variety of species. However, how late in life application of caloric restriction can extend fly life is not clear. Here we show that late-life calorie restriction increases lifespan in female Drosophila melanogaster aged on a high-calorie diet. This shift results in rapid decrease in mortality rate and extends fly lifespan. In contrast, shifting female flies from a low- to a high-calorie diet leads to a rapid increase in mortality and shorter lifespan. These changes are mediated by immediate metabolic and physiological adaptations. One of such adaptation is rapid adjustment in egg production, with flies directing excess energy towards egg production when shifted to a high diet, or away from reproduction in females shifted to low-caloric diet. However, lifelong female fecundity reveals no associated fitness cost due to CR when flies are shifted to a high-calorie diet. In view of high conservation of the beneficial effects of CR on physiology and lifespan in a wide variety of organisms, including humans, our findings could provide valuable insight into CR applications that could provide health benefits later in life.
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Affiliation(s)
- Michael Li
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Jacob Macro
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Billy J Huggins
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Kali Meadows
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Dushyant Mishra
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Dominique Martin
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Kavitha Kannan
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Blanka Rogina
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, 06030, USA.
- Institute for Systems Genomics, University of Connecticut Health, Farmington, CT, 06030, USA.
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2
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Wang R, Zhu Q, Huang H, Yang M, Wang X, Dong Y, Li Y, Guan Y, Zhong L, Niu Y. Periodic protein-restricted diets extend the lifespan of high-fat diet-induced Drosophila melanogaster males. Aging Cell 2024:e14327. [PMID: 39207121 DOI: 10.1111/acel.14327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 08/02/2024] [Accepted: 08/15/2024] [Indexed: 09/04/2024] Open
Abstract
Research has shown that sustained protein restriction can improve the effects of a high-fat diet on health and extend lifespan. However, long-term adherence to a protein-restricted diet is challenging. Therefore, we used a fly model to investigate whether periodic protein restriction (PPR) could also mitigate the potential adverse effects of a high-fat diet and extend healthy lifespan. Our study results showed that PPR reduced body weight, lipid levels, and oxidative stress induced by a high-fat diet in flies and significantly extended the healthy lifespan of male flies. Lipid metabolism and transcriptome results revealed that the common differences between the PPR group and the control group and high-fat group showed a significant decrease in palmitic acid in the PPR group; the enriched common differential pathways Toll and Imd were significantly inhibited in the PPR group. Further analysis indicated a significant positive correlation between palmitic acid levels and gene expression in the Toll and Imd pathways. This suggests that PPR effectively improves fruit fly lipid metabolism, reduces palmitic acid levels, and thereby suppresses the Toll and Imd pathways to extend the healthy lifespan of flies. Our study provides a theoretical basis for the long-term effects of PPR on health and offers a new dietary adjustment option for maintaining health in the long term.
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Affiliation(s)
- Ruohua Wang
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Qiushuang Zhu
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - He Huang
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Mengxia Yang
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xinyue Wang
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yuanjie Dong
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yuqiao Li
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yue Guan
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
| | - Lei Zhong
- Department of Breast Surgery, Sixth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yucun Niu
- Department of Nutrition and Food Hygiene, College of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin, Heilongjiang, China
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3
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Yeh DA, Dai B, Gómez MI, Walton VM. Does monitoring pests pay off? a bioeconomic assessment of Drosophila suzukii controls. PEST MANAGEMENT SCIENCE 2024; 80:708-723. [PMID: 37770414 DOI: 10.1002/ps.7801] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/26/2023] [Accepted: 09/29/2023] [Indexed: 09/30/2023]
Abstract
BACKGROUND Drosophila suzukii is a significant invasive pest that has caused high management costs and economic losses for blueberry growers in the United States. The status quo control strategy commonly used by growers is to apply pesticides proactively and frequently to reduce infestation. Recent studies have shown that the calendar-based spraying strategy might be unsustainable in the long term, making the reduction of pesticide reliance a top priority for the berry industry. Incorporating pest monitoring into the control strategy could be an option to improve efficiency while reducing pesticide usage. This study assesses the economic implications of monitoring-based control strategies compared to calendar-based spraying control strategies for organic blueberry production in Oregon. We combine a D. suzukii population model into the economic simulation framework, evaluate two monitoring methods (adult trapping and fruit sampling), and identify the profit-maximizing control strategy under different scenarios. RESULTS In the baseline scenario, control strategies that incorporate fruit sampling exhibit the highest average profits. Although the status quo control strategy (spraying every 3 days) generates higher average revenue than monitoring-based strategies, the cost from the higher number of pesticide application offsets the returns. CONCLUSION This study uses a novel bioeconomic simulation framework to show that incorporating fruit sampling can be a promising tool to reduce pesticide reliance while controlling D. suzukii infestation. These findings provide clearer information on the economic viability of using monitoring-based pest control strategies in organic berry production, and the assessment framework sheds light on the economics of pest management. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- D Adeline Yeh
- U.S. Department of Agriculture, Economic Research Service, Kansas City, Missouri, USA
| | - Bingyan Dai
- Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, New York, USA
| | - Miguel I Gómez
- Charles H. Dyson School of Applied Economics and Management, Cornell University, Ithaca, New York, USA
| | - Vaughn M Walton
- Department of Horticulture, Oregon State University, Corvallis, Oregon, USA
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Bak NK, Rohde PD, Kristensen TN. Strong Sex-Dependent Effects of Malnutrition on Life- and Healthspan in Drosophila melanogaster. INSECTS 2023; 15:9. [PMID: 38249015 PMCID: PMC10816799 DOI: 10.3390/insects15010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/22/2023] [Accepted: 12/24/2023] [Indexed: 01/23/2024]
Abstract
Insufficient intake of essential nutrients, malnutrition is a major issue for millions of people and has a strong impact on the distribution and abundance of species in nature. In this study, we investigated the effect of malnutrition on several fitness components in the vinegar fly Drosophila melanogaster. Four diets with different nutritional values, including three diluted diets of an optimal nutritional balanced diet, were used as feed sources. The effect of malnutrition on fitness components linked to healthspan, the period of life spent in good health conditions, was evaluated by quantifying the flies' lifespan, locomotor activity, heat stress tolerance, lipid content, and dry weight. The results showed that malnutrition had severe negative impact, such as reduced lifespan, locomotor activity, heat stress tolerance, fat content, and dry weight. The negative phenotypic effects were highly sex-dependent, with males being more negatively impacted by malnutrition compared to females. These findings highlight important detrimental and sex-specific effects of malnutrition not only on lifespan but also on traits related to healthspan.
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Affiliation(s)
- Nikolaj Klausholt Bak
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK 9220 Aalborg, Denmark;
| | - Palle Duun Rohde
- Department of Health Science and Technology, Aalborg University, Selma Lagerløfs Vej 249, DK 9260 Gistrup, Denmark
| | - Torsten Nygaard Kristensen
- Department of Chemistry and Bioscience, Aalborg University, Frederik Bajers Vej 7H, DK 9220 Aalborg, Denmark;
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Li M, Macro J, Meadows K, Mishra D, Martin D, Olson S, Huggins BJ, Graveley BR, Li JYH, Rogina B. Late-life shift in caloric intake affects fly metabolism and longevity. Proc Natl Acad Sci U S A 2023; 120:e2311019120. [PMID: 38064506 PMCID: PMC10723134 DOI: 10.1073/pnas.2311019120] [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: 06/29/2023] [Accepted: 10/05/2023] [Indexed: 12/17/2023] Open
Abstract
The prevalence of obesity is increasing in older adults and contributes to age-related decline. Caloric restriction (CR) alleviates obesity phenotypes and delays the onset of age-related changes. However, how late in life organisms benefit from switching from a high-(H) to a low-calorie (L) diet is unclear. We transferred male flies from a H to a L (HL) diet or vice versa (LH) at different times during life. Both shifts immediately change fly rate of aging even when applied late in life. HL shift rapidly reduces fly mortality rate to briefly lower rate than in flies on a constant L diet, and extends lifespan. Transcriptomic analysis uncovers that flies aged on H diet have acquired increased stress response, which may have temporal advantage over flies aged on L diet and leads to rapid decrease in mortality rate after HL switch. Conversely, a LH shift increases mortality rate, which is temporarily higher than in flies aged on a H diet, and shortens lifespan. Unexpectedly, more abundant transcriptomic changes accompanied LH shift, including increase in ribosome biogenesis, stress response and growth. These changes reflect protection from sudden release of ROS, energy storage, and use of energy to growth, which all likely contribute to higher mortality rate. As the beneficial effects of CR on physiology and lifespan are conserved across many organisms, our study provides framework to study underlying mechanisms of CR interventions that counteract the detrimental effects of H diets and reduce rate of aging even when initiated later in life.
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Affiliation(s)
- Michael Li
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
| | - Jacob Macro
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
| | - Kali Meadows
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
| | - Dushyant Mishra
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
| | - Dominique Martin
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
| | - Sara Olson
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
- Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT06030
| | - Billy Joe Huggins
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
| | - Brenton R. Graveley
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
- Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT06030
| | - James Y. H. Li
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
- Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT06030
| | - Blanka Rogina
- Department of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT06030
- Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT06030
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6
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Piper MDW, Zanco B, Sgrò CM, Adler MI, Mirth CK, Bonduriansky R. Dietary restriction and lifespan: adaptive reallocation or somatic sacrifice? FEBS J 2023; 290:1725-1734. [PMID: 35466532 PMCID: PMC10952493 DOI: 10.1111/febs.16463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/28/2022] [Accepted: 04/21/2022] [Indexed: 12/21/2022]
Abstract
Reducing overall food intake, or lowering the proportion of protein relative to other macronutrients, can extend the lifespan of diverse organisms. A number of mechanistic theories have been developed to explain this phenomenon, mostly assuming that the molecules connecting diet to lifespan are evolutionarily conserved. A recent study using Drosophila melanogaster females has pinpointed a single essential micronutrient that can explain how lifespan is changed by dietary restriction. Here, we propose a likely mechanism for this observation, which involves a trade-off between lifespan and reproduction, but in a manner that is conditional on the dietary supply of an essential micronutrient - a sterol. Importantly, these observations argue against previous evolutionary theories that rely on constitutive resource reallocation or damage directly inflicted by reproduction. Instead, they are compatible with a model in which the inverse relationship between lifespan and food level is caused by the consumer suffering from varying degrees of malnutrition when maintained on lab food. The data also indicate that animals on different lab foods may suffer from different nutritional imbalances and that the mechanisms by which dietary restriction benefits the lifespan of different species may vary. This means that translating the mechanistic findings from lab animals to humans will not be simple and should be interpreted in light of the range of challenges that have shaped each organism's lifespan in the wild and the composition of the natural diets upon which they would feed.
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Affiliation(s)
| | - Brooke Zanco
- School of Biological SciencesMonash UniversityClaytonVictoriaAustralia
| | - Carla M. Sgrò
- School of Biological SciencesMonash UniversityClaytonVictoriaAustralia
| | | | - Christen K. Mirth
- School of Biological SciencesMonash UniversityClaytonVictoriaAustralia
| | - Russell Bonduriansky
- School of Biological, Earth and Environmental SciencesUniversity of New South WalesSydneyAustralia
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Liu XY, Yan R, Chen SJ, Zhang JL, Xu HJ. Orco mutagenesis causes deficiencies in olfactory sensitivity and fertility in the migratory brown planthopper, Nilaparvata lugens. PEST MANAGEMENT SCIENCE 2023; 79:1030-1039. [PMID: 36354196 DOI: 10.1002/ps.7286] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/29/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The migratory brown planthopper (BPH), Nilaparvata lugens (Hemiptera: Delphacidae), is the most destructive pest affecting rice plants in Asia and feeds exclusively on rice. Studies have investigated the olfactory response of BPHs to the major rice volatile compounds in rice. The insect olfactory co-receptor (Orco) is a crucial component of the olfactory system and is essential for odorant detection. Functional analysis of the Orco gene in BPHs would aid in the identification of their host preference. RESULTS We identified the BPH Orco homologue (NlOrco) by Blast searching the BPH transcriptome with the Drosophila Orco gene sequence. Spatiotemporal analysis indicated that NlOrco is first expressed in the later egg stage, and is expressed mainly in the antennae in adult females. A NlOrco-knockout line (NlOrco-/- ) was generated through clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9-mediated mutagenesis. The NlOrco-/- mutants showed no response to rice volatile compounds and consequently no host-plant preference. In addition, NlOrco-/- mutants exhibited extended nymphal duration and impaired fecundity compared with wild-type BPHs. CONCLUSION Our findings indicated that BPHs exhibit strong olfactory responses to major rice volatile compounds and suggest that NlOrco is required for the maximal fitness of BPHs. Our results may facilitate the identification of potential target genes or chemical compounds for BPH control applications. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Xin-Yang Liu
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Ru Yan
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Sun-Jie Chen
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Jin-Li Zhang
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Hai-Jun Xu
- State Key Laboratory of Rice Biology, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
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8
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Mishra D, Kannan K, Meadows K, Macro J, Li M, Frankel S, Rogina B. INDY-From Flies to Worms, Mice, Rats, Non-Human Primates, and Humans. FRONTIERS IN AGING 2022; 2:782162. [PMID: 35822025 PMCID: PMC9261455 DOI: 10.3389/fragi.2021.782162] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 11/24/2021] [Indexed: 01/17/2023]
Abstract
I’m Not Dead Yet (Indy) is a fly homologue of the mammalian SLC13A5 (mSLC13A5) plasma membrane citrate transporter, a key metabolic regulator and energy sensor involved in health, longevity, and disease. Reduction of Indy gene activity in flies, and its homologs in worms, modulates metabolism and extends longevity. The metabolic changes are similar to what is obtained with caloric restriction (dietary restriction). Similar effects on metabolism have been observed in mice and rats. As a citrate transporter, INDY regulates cytoplasmic citrate levels. Indy flies heterozygous for a P-element insertion have increased spontaneous physical activity, increased fecundity, reduced insulin signaling, increased mitochondrial biogenesis, preserved intestinal stem cell homeostasis, lower lipid levels, and increased stress resistance. Mammalian Indy knockout (mIndy-KO) mice have higher sensitivity to insulin signaling, lower blood pressure and heart rate, preserved memory and are protected from the negative effects of a high-fat diet and some of the negative effects of aging. Reducing mIndy expression in human hepatocarcinoma cells has recently been shown to inhibit cell proliferation. Reduced Indy expression in the fly intestine affects intestinal stem cell proliferation, and has recently been shown to also inhibit germ cell proliferation in males with delayed sperm maturation and decreased spermatocyte numbers. These results highlight a new connection between energy metabolism and cell proliferation. The overrall picture in a variety of species points to a conserved role of INDY for metabolism and health. This is illustrated by an association of high mIndy gene expression with non-alcoholic fatty liver disease in obese humans. mIndy (mSLC13A5) coding region mutations (e.g., loss-of-function) are also associated with adverse effects in humans, such as autosomal recessive early infantile epileptic encephalopathy and Kohlschütter−Tönz syndrome. The recent findings illustrate the importance of mIndy gene for human health and disease. Furthermore, recent work on small-molecule regulators of INDY highlights the promise of INDY-based treatments for ameliorating disease and promoting healthy aging.
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Affiliation(s)
- Dushyant Mishra
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Kavitha Kannan
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Kali Meadows
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Jacob Macro
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Michael Li
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
| | - Stewart Frankel
- Department of Biology, University of Hartford, West Hartford, CT, United States
| | - Blanka Rogina
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States.,Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
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Delventhal R, Wooder ER, Basturk M, Sattar M, Lai J, Bolton D, Muthukumar G, Ulgherait M, Shirasu-Hiza MM. Dietary restriction ameliorates TBI-induced phenotypes in Drosophila melanogaster. Sci Rep 2022; 12:9523. [PMID: 35681073 PMCID: PMC9184478 DOI: 10.1038/s41598-022-13128-x] [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: 03/09/2022] [Accepted: 05/20/2022] [Indexed: 11/25/2022] Open
Abstract
Traumatic brain injury (TBI) affects millions annually and is associated with long-term health decline. TBI also shares molecular and cellular hallmarks with neurodegenerative diseases (NDs), typically increasing in prevalence with age, and is a major risk factor for developing neurodegeneration later in life. While our understanding of genes and pathways that underlie neurotoxicity in specific NDs has advanced, we still lack a complete understanding of early molecular and physiological changes that drive neurodegeneration, particularly as an individual ages following a TBI. Recently Drosophila has been introduced as a model organism for studying closed-head TBI. In this paper, we deliver a TBI to flies early in adult life, and then measure molecular and physiological phenotypes at short-, mid-, and long-term timepoints following the injury. We aim to identify the timing of changes that contribute to neurodegeneration. Here we confirm prior work demonstrating a TBI-induced decline in lifespan, and present evidence of a progressive decline in locomotor function, robust acute and modest chronic neuroinflammation, and a late-onset increase in protein aggregation. We also present evidence of metabolic dysfunction, in the form of starvation sensitivity and decreased lipids, that persists beyond the immediate injury response, but does not differ long-term. An intervention of dietary restriction (DR) partially ameliorates some TBI-induced phenotypes, including lifespan and locomotor function, though it does not alter the pattern of starvation sensitivity of injured flies. In the future, molecular pathways identified as altered following TBI—particularly in the short-, or mid-term—could present potential therapeutic targets.
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Affiliation(s)
- Rebecca Delventhal
- Department of Biology, Lake Forest College, Lake Forest, IL, 60045, USA.
| | - Emily R Wooder
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Maylis Basturk
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Mohima Sattar
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Jonathan Lai
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Danielle Bolton
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Gayathri Muthukumar
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Matthew Ulgherait
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Mimi M Shirasu-Hiza
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, 10032, USA.
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10
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Liu X, Jin Z, Summers S, Derous D, Li M, Li B, Li L, Speakman JR. Calorie restriction and calorie dilution have different impacts on body fat, metabolism, behavior, and hypothalamic gene expression. Cell Rep 2022; 39:110835. [PMID: 35584669 DOI: 10.1016/j.celrep.2022.110835] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/14/2022] [Accepted: 04/26/2022] [Indexed: 12/13/2022] Open
Abstract
Caloric restriction is a robust intervention to increase lifespan. Giving less food (calorie restriction [CR]) or allowing free access to a diluted diet with indigestible components (calorie dilution [CD]) are two methods to impose restriction. CD does not generate the same lifespan effect as CR. We compare responses of C57BL/6 mice with equivalent levels of CR and CD. The two groups have different responses in fat loss, circulating hormones, and metabolic rate. CR mice are hungrier, as assessed by behavioral assays. Although gene expression of Npy, Agrp, and Pomc do not differ between CR and CD groups, CR mice had a distinctive hypothalamic gene-expression profile with many genes related to starvation upregulated relative to CD. While both result in lower calorie intake, CR and CD are not equivalent procedures. Increased hunger under CR supports the hypothesis that hunger signaling is a key process mediating the benefits of CR.
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Affiliation(s)
- Xue Liu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, PRC; University of Chinese Academy of Sciences, Shijingshan District, Beijing 100049, PRC; Research Group Adipocytes and Metabolism, Institute for Diabetes and Obesity, Helmholtz Zentrum München, Neuherberg 85764, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; Technische Universität München, Ismaningerstraße 22, 81675 München, Germany
| | - Zengguang Jin
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, Scotland, UK
| | - Stephanie Summers
- Shenzhen Key Laboratory of Metabolic Health, Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PRC
| | - Davina Derous
- Shenzhen Key Laboratory of Metabolic Health, Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PRC
| | - Min Li
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, Scotland, UK
| | - Baoguo Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, PRC
| | - Li Li
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, PRC
| | - John R Speakman
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, Scotland, UK; Shenzhen Key Laboratory of Metabolic Health, Center for Energy Metabolism and Reproduction, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, PRC; CAS Center of Excellence in Animal Evolution and Genetics, Kunming, PRC.
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11
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He J, Tuo W, Zhang X, Dai Y, Fang M, Zhou T, Xiu M, Liu Y. Olfactory Senses Modulate Food Consumption and Physiology in Drosophila melanogaster. Front Behav Neurosci 2022; 16:788633. [PMID: 35431829 PMCID: PMC9011337 DOI: 10.3389/fnbeh.2022.788633] [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: 10/03/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Both sensory and metabolic processes guide food intake. Olfactory inputs help coordinate food appreciation and selection, but their role in food consumption and post-feeding physiology remains poorly understood. In this study, using Drosophila melanogaster as a model system, we investigated the effects of olfactory sensory neurons (OSNs) on food consumption, metabolism, and stress responses. We found that dysfunction of OSNs affects diverse processes, including decreased food consumption, increased triacylglycerol level, enhanced stress resistance to starvation or desiccation, and decreased cold resistance. Decreased neuropeptide F receptor (NPFR) level or increased insulin activity in OSNs inhibited food consumption, while impaired NPF signaling or insulin signaling in OSNs increased resistance to starvation and desiccation. These studies provide insights into the function of the olfactory system in control of feeding behaviors and physiology.
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Affiliation(s)
- Jianzheng He
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level, Gansu University of Traditional Chinese Medicine, Lanzhou, China
| | - Wenjuan Tuo
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Xueyan Zhang
- College of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yuting Dai
- College of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
| | - Ming Fang
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Ting Zhou
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
| | - Minghui Xiu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level, Gansu University of Traditional Chinese Medicine, Lanzhou, China
- College of Public Health, Gansu University of Chinese Medicine, Lanzhou, China
- *Correspondence: Minghui Xiu,
| | - Yongqi Liu
- Provincial-Level Key Laboratory for Molecular Medicine of Major Diseases and the Prevention and Treatment with Traditional Chinese Medicine Research in Gansu Colleges and University, Gansu University of Chinese Medicine, Lanzhou, China
- Key Laboratory for Transfer of Dunhuang Medicine at the Provincial and Ministerial Level, Gansu University of Traditional Chinese Medicine, Lanzhou, China
- Yongqi Liu,
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12
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Mohammad Adnan S, Farhana I, Rempoulakis P, Taylor PW. Methoprene treatment increases activity, starvation and desiccation risk of Queensland fruit fly. JOURNAL OF INSECT PHYSIOLOGY 2022; 136:104340. [PMID: 34838789 DOI: 10.1016/j.jinsphys.2021.104340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
Juvenile hormone is an important regulator of sexual development in insects, and application of methoprene, a juvenile hormone analogue, together with access to a protein-rich diet, has been found to accelerate sexual maturation of several tephritid fruit fly species including Queensland fruit fly Bactrocera tryoni ('Q-fly'). Such accelerated development is a potentially valuable means to increase participation of released males in sterile insect technique programs. However, there is a risk that benefits of accelerated maturation might be countered by increased vulnerability to starvation and desiccation. The present study investigates this possibility. After emergence, flies were treated with three levels of methoprene (0, 0.05%, and 0.5%) incorporated into a diet of sugar and yeast hydrolysate for two days after emergence. Survival of groups and individual flies was assessed under conditions of food stress, food and water stress, and ad libitum access to diet, and survival of individual flies was also assessed under desiccation stress. Most flies provided ad libitum access to diet were still alive at 7 days, whereas all stressed flies died within 4 days. Desiccation stressed flies had the shortest survival followed by food and water stress, and then food stress. Methoprene supplements increased susceptibility of flies to each stress. Flies subjected to food and water stress had the least lipid reserves at death, whereas flies subjected to desiccation stress retained the least water reserves. To investigate mechanisms that might underlie reduced survival under stress; we also quantified activity level of flies that were subjected to food and water stress and desiccation stress. Activity level was greater for flies provided methoprene, but did not vary with stress type or sex, suggesting that increased vulnerability of flies to stress is related to elevated metabolism associated with elevated activity. Deleterious effects of methoprene supplements on stress tolerance indicate a need for careful consideration of the conditions that will be encountered by flies in the field before deploying methoprene as a pre-release treatment in Q-fly sterile insect technique programs.
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Affiliation(s)
- Saleh Mohammad Adnan
- Applied BioSciences, Macquarie University, Australia; Department of Primary Industries and Regional Development, Western Australia, Australia.
| | - Iffat Farhana
- Applied BioSciences, Macquarie University, Australia
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13
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Takeuchi KI, Honda D, Okumura M, Miura M, Chihara T. Systemic innate immune response induces death of olfactory receptor neurons in Drosophila. Genes Cells 2021; 27:113-123. [PMID: 34921694 DOI: 10.1111/gtc.12914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 11/28/2022]
Abstract
Neural functions are known to decline during normal aging and neurodegenerative diseases. However, the mechanisms of functional impairment owing to the normal aging of the brain are poorly understood. Previously, we reported that caspase-3-like protease, the protease responsible for inducing apoptosis, is activated in a subset of olfactory receptor neurons (ORNs), especially in Drosophila Or42b neurons, during normal aging. Herein, we investigated the molecular mechanism underlying age-related caspase-3-like protease activation and cell death in Or42b neurons. Gene expression profiling of young and aged fly antenna showed that the expression of antimicrobial peptides was significantly upregulated, suggesting an activated innate immune response. Consistent with this observation, inhibition or activation of the innate immune pathway caused delayed or precocious cell death, respectively, in Or42b neurons. Accordingly, autonomous cell activation of the innate immune pathway in Or42b neurons is not likely required for their age-related death, whereas the systemic innate immune response induces caspase-3-like protease activation in Or42b neurons; this indicated that the death of these neurons is regulated non-cell autonomously. We propose a possible link between the innate immune response and the death of olfactory neurons during normal aging.
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Affiliation(s)
- Ken-Ichi Takeuchi
- Department of Genetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Bunkyo-ku, Japan
| | - Daichi Honda
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
| | - Misako Okumura
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan.,Program of Basic Biology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
| | - Masayuki Miura
- Department of Genetics, Graduate School of Pharmaceutical Science, The University of Tokyo, Bunkyo-ku, Japan
| | - Takahiro Chihara
- Program of Biomedical Science, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan.,Program of Basic Biology, Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
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14
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A resource-poor developmental diet reduces adult aggression in male Drosophila melanogaster. Behav Ecol Sociobiol 2021; 75:110. [PMID: 34720349 PMCID: PMC8549984 DOI: 10.1007/s00265-021-03050-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/26/2021] [Accepted: 06/30/2021] [Indexed: 12/01/2022]
Abstract
Aggressive behaviours occur throughout the animal kingdom and agonistic contests often govern access to resources. Nutrition experienced during development has the potential to influence aggressive behaviours in adults through effects on growth, energy budgets and an individual’s internal state. In particular, resource-poor developmental nutrition might decrease adult aggression by limiting growth and energy budgets, or alternatively might increase adult aggression by enhancing motivation to compete for resources. However, the direction of this relationship—and effects of developmental nutrition experienced by rivals—remains unknown in most species, limiting understanding of how early-life environments contribute to variation in aggression. We investigated these alternative hypotheses by assessing male-male aggression in adult fruit flies, Drosophila melanogaster, that developed on a low-, medium- or high-resource diet, manipulated via yeast content. We found that a low-resource developmental diet reduced the probability of aggressive lunges in adults, as well as threat displays against rivals that developed on a low-resource diet. These effects appeared to be independent of diet-related differences in body mass. Males performed relatively more aggression on a central food patch when facing rivals of a low-resource diet, suggesting that developmental diet affects aggressive interactions through social effects in addition to individual effects. Our finding that resource-poor developmental diets reduce male-male aggression in D. melanogaster is consistent with the idea that resource budgets mediate aggression and in a mass-independent manner. Our study improves understanding of the links between nutrition and aggression. Significance statement Early-life nutrition can influence social behaviours in adults. Aggression is a widespread social behaviour with important consequences for fitness. Using the fruit fly, Drosophila melanogaster, we show that a poor developmental diet reduces aspects of adult aggressive behaviour in males. Furthermore, males perform more aggression near food patches when facing rivals of poor nutrition. This suggests that early-life nutrition affects aggressive interactions through social effects in addition to individual effects.
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15
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Tian X. Enhancing mask activity in dopaminergic neurons extends lifespan in flies. Aging Cell 2021; 20:e13493. [PMID: 34626525 PMCID: PMC8590106 DOI: 10.1111/acel.13493] [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: 04/21/2021] [Revised: 09/05/2021] [Accepted: 09/19/2021] [Indexed: 12/11/2022] Open
Abstract
Dopaminergic neurons (DANs) are essential modulators for brain functions involving memory formation, reward processing, and decision‐making. Here I demonstrate a novel and important function of the DANs in regulating aging and longevity. Overexpressing the putative scaffolding protein Mask in two small groups of DANs in flies can significantly extend the lifespan in flies and sustain adult locomotor and fecundity at old ages. This Mask‐induced beneficial effect requires dopaminergic transmission but cannot be recapitulated by elevating dopamine production alone in the DANs. Independent activation of Gαs in the same two groups of DANs via the drug‐inducible DREADD system also extends fly lifespan, further indicating the connection of specific DANs to aging control. The Mask‐induced lifespan extension appears to depend on the function of Mask to regulate microtubule (MT) stability. A structure–function analysis demonstrated that the ankyrin repeats domain in the Mask protein is both necessary for regulating MT stability (when expressed in muscles and motor neurons) and sufficient to prolong longevity (when expressed in the two groups of DANs). Furthermore, DAN‐specific overexpression of Unc‐104 or knockdown of p150Glued, two independent interventions previously shown to impact MT dynamics, also extends lifespan in flies. Together, these data demonstrated a novel DANs‐dependent mechanism that, upon the tuning of their MT dynamics, modulates systemic aging and longevity in flies.
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Affiliation(s)
- Xiaolin Tian
- Neuroscience Center of Excellence Department of Cell Biology and Anatomy Louisiana State University Health Sciences Center New Orleans Louisiana USA
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16
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Kannan K, Rogina B. The Role of Citrate Transporter INDY in Metabolism and Stem Cell Homeostasis. Metabolites 2021; 11:705. [PMID: 34677421 PMCID: PMC8540898 DOI: 10.3390/metabo11100705] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/05/2021] [Accepted: 10/12/2021] [Indexed: 12/11/2022] Open
Abstract
I'm Not Dead Yet (Indy) is a fly gene that encodes a homologue of mammalian SLC13A5 plasma membrane citrate transporter. Reducing expression of Indy gene in flies, and its homologues in worms, extends longevity. Indy reduction in flies, worms, mice and rats affects metabolism by regulating the levels of cytoplasmic citrate, inducing a state similar to calorie restriction. Changes include lower lipid levels, increased insulin sensitivity, increased mitochondrial biogenesis, and prevention of weight gain, among others. The INDY protein is predominantly expressed in fly metabolic tissues: the midgut, fat body and oenocytes. Changes in fly midgut metabolism associated with reduced Indy gene activity lead to preserved mitochondrial function and reduced production of reactive oxygen species. All these changes lead to preserved intestinal stem cell homeostasis, which has a key role in maintaining intestinal epithelium function and enhancing fly healthspan and lifespan. Indy gene expression levels change in response to caloric content of the diet, inflammation and aging, suggesting that INDY regulates metabolic adaptation to nutrition or energetic requirements by controlling citrate levels.
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Affiliation(s)
- Kavitha Kannan
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA;
| | - Blanka Rogina
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA;
- Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT 06030, USA
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17
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Abstract
Aging has provided fruitful challenges for evolutionary theory, and evolutionary theory has deepened our understanding of aging. A great deal of genetic and molecular data now exists concerning mortality regulation and there is a growing body of knowledge concerning the life histories of diverse species. Assimilating all relevant data into a framework for the evolution of aging promises to significantly advance the field. We propose extensions of some key concepts to provide greater precision when applying these concepts to age-structured contexts. Secondary or byproduct effects of mutations are proposed as an important factor affecting survival patterns, including effects that may operate in small populations subject to genetic drift, widening the possibilities for mutation accumulation and pleiotropy. Molecular and genetic studies have indicated a diverse array of mechanisms that can modify aging and mortality rates, while transcriptome data indicate a high level of tissue and species specificity for genes affected by aging. The diversity of mechanisms and gene effects that can contribute to the pattern of aging in different organisms may mirror the complex evolutionary processes behind aging.
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Affiliation(s)
- Stewart Frankel
- Biology Department, University of Hartford, West Hartford, CT, United States
| | - Blanka Rogina
- Genetics and Genome Sciences, Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, Farmington, CT, United States
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18
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High fat diet induced abnormalities in metabolism, growth, behavior, and circadian clock in Drosophila melanogaster. Life Sci 2021; 281:119758. [PMID: 34175317 DOI: 10.1016/j.lfs.2021.119758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/11/2021] [Accepted: 06/13/2021] [Indexed: 01/15/2023]
Abstract
AIMS The current lifestyle trend has made people vulnerable to diabetes and related diseases. Years of scientific research have not been able to yield a cure to the disease completely. The current study aims to investigate a link between high-fat diet mediated diabesity and circadian rhythm in the Drosophila model and inferences that might help in establishing a cure to the dreaded disease. MAIN METHODS Several experimental methods including phenotypical, histological, biochemical, molecular, and behavioral assays were used in the study to detect obesity, diabetes, and changes in the circadian clock in the fly model. KEY FINDINGS The larva and adults of Drosophila melanogaster exposed to high-fat diet (HFD) displayed excess deposition of fat as lipid droplets and micronuclei formation in the gut, fat body, and crop. Larva and adults of HFD showed behavioral defects. The higher amount of triglyceride, glucose, trehalose in the whole body of larva and adult fly confirmed obesity-induced hyperglycemia. The overexpression of insulin gene (Dilp2) and tribble (trbl) gene expression confirmed insulin resistance in HFD adults. We also observed elevated ROS level, developmental delay, altered metal level, growth defects, locomotory rhythms, sleep fragmentation, and expression of circadian genes (per, tim, and clock) in HFD larva and adults. Thus, HFD impairs the metabolism to produce obesity, insulin resistance, disruption of clock, and circadian clock related co-mordities in D. melanogaster. SIGNIFICANCE The circadian gene expression provides an innovative perspective to understand and find a new treatment for type-II diabetes and circadian anomalies.
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19
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20
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Oka M, Suzuki E, Asada A, Saito T, Iijima KM, Ando K. Increasing neuronal glucose uptake attenuates brain aging and promotes life span under dietary restriction in Drosophila. iScience 2021; 24:101979. [PMID: 33490892 PMCID: PMC7806808 DOI: 10.1016/j.isci.2020.101979] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 10/29/2020] [Accepted: 12/17/2020] [Indexed: 12/29/2022] Open
Abstract
Brain neurons play a central role in organismal aging, but there is conflicting evidence about the role of neuronal glucose availability because glucose uptake and metabolism are associated with both aging and extended life span. Here, we analyzed metabolic changes in the brain neurons of Drosophila during aging. Using a genetically encoded fluorescent adenosine triphosphate (ATP) biosensor, we found decreased ATP concentration in the neuronal somata of aged flies, correlated with decreased glucose content, expression of glucose transporter and glycolytic enzymes and mitochondrial quality. The age-associated reduction in ATP concentration did not occur in brain neurons with suppressed glycolysis or enhanced glucose uptake, suggesting these pathways contribute to ATP reductions. Despite age-associated mitochondrial damage, increasing glucose uptake maintained ATP levels, suppressed locomotor deficits, and extended the life span. Increasing neuronal glucose uptake during dietary restriction resulted in the longest life spans, suggesting an additive effect of enhancing glucose availability during a bioenergetic challenge on aging. Imaging of Drosophila brain reveals aged neurons suffer from energy deficits Increased neuronal glucose uptake attenuates age-dependent declines in ATP Increased glucose uptake is beneficial despite age-dependent mitochondrial damage Increased neuronal glucose uptake and dietary restriction further extend life span
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Affiliation(s)
- Mikiko Oka
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan
| | - Emiko Suzuki
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan.,Gene Network Laboratory, National Institute of Genetics, Mishima, Shizuoka, Japan.,Department of Genetics, SOKENDAI, Mishima, Shizuoka, Japan
| | - Akiko Asada
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan.,Department of Biological Sciences, Faculty of Science, Tokyo Metropolitan University, Tokyo, Japan
| | - Taro Saito
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan.,Department of Biological Sciences, Faculty of Science, Tokyo Metropolitan University, Tokyo, Japan
| | - Koichi M Iijima
- Department of Alzheimer's Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.,Department of Experimental Gerontology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Kanae Ando
- Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Tokyo, Japan.,Department of Biological Sciences, Faculty of Science, Tokyo Metropolitan University, Tokyo, Japan
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21
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Brenes-Soto A, Tye M, Esmail MY. The Role of Feed in Aquatic Laboratory Animal Nutrition and the Potential Impact on Animal Models and Study Reproducibility. ILAR J 2020; 60:197-215. [PMID: 33094819 DOI: 10.1093/ilar/ilaa006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 12/31/2022] Open
Abstract
Feed plays a central role in the physiological development of terrestrial and aquatic animals. Historically, the feeding practice of aquatic research species derived from aquaculture, farmed, or ornamental trades. These diets are highly variable, with limited quality control, and have been typically selected to provide the fastest growth or highest fecundity. These variations of quality and composition of diets may affect animal/colony health and can introduce confounding experimental variables into animal-based studies that impact research reproducibility.
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Affiliation(s)
- Andrea Brenes-Soto
- Department of Animal Science, University of Costa Rica, San José, Costa Rica
| | - Marc Tye
- Zebrafish Core Facility, University of Minnesota-Twin Cities, Minneapolis, Minnesota
| | - Michael Y Esmail
- Tufts Comparative Medicine Services, Tufts University Health Science Campus, Boston, Massachusetts
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22
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Shinohara M, Kanekiyo T, Tachibana M, Kurti A, Shinohara M, Fu Y, Zhao J, Han X, Sullivan PM, Rebeck GW, Fryer JD, Heckman MG, Bu G. APOE2 is associated with longevity independent of Alzheimer's disease. eLife 2020; 9:e62199. [PMID: 33074098 PMCID: PMC7588231 DOI: 10.7554/elife.62199] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/13/2020] [Indexed: 12/24/2022] Open
Abstract
Although the ε2 allele of apolipoprotein E (APOE2) benefits longevity, its mechanism is not understood. The protective effects of the APOE2 on Alzheimer's disease (AD) risk, particularly through their effects on amyloid or tau accumulation, may confound APOE2 effects on longevity. Herein, we showed that the association between APOE2 and longer lifespan persisted irrespective of AD status, including its neuropathology, by analyzing clinical datasets as well as animal models. Notably, APOE2 was associated with preserved activity during aging, which also associated with lifespan. In animal models, distinct apoE isoform levels, where APOE2 has the highest, were correlated with activity levels, while some forms of cholesterol and triglycerides were associated with apoE and activity levels. These results indicate that APOE2 can contribute to longevity independent of AD. Preserved activity would be an early-observable feature of APOE2-mediated longevity, where higher levels of apoE2 and its-associated lipid metabolism might be involved.
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Affiliation(s)
- Mitsuru Shinohara
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
- Department of Aging Neurobiology, National Center for Geriatrics and GerontologyAichiJapan
| | - Takahisa Kanekiyo
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
- Neuroscience Graduate Program, Mayo ClinicJacksonvilleUnited States
| | - Masaya Tachibana
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
- United Graduate School of Child Development, Osaka UniversityOsakaJapan
| | - Aishe Kurti
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
| | - Motoko Shinohara
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
| | - Yuan Fu
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
| | - Jing Zhao
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
| | - Xianlin Han
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San AntonioSan AntonioUnited States
| | - Patrick M Sullivan
- Duke University School of Medicine, Durham Veterans Health Administration Medical Center's Geriatric Research, Education and Clinical CenterDurhamUnited States
| | - G William Rebeck
- Department of Neuroscience, Georgetown University Medical CenterWashingtonUnited States
| | - John D Fryer
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
- Neuroscience Graduate Program, Mayo ClinicJacksonvilleUnited States
| | - Michael G Heckman
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
- Division of Biomedical Statistics and Informatics, Mayo ClinicJacksonvilleUnited States
| | - Guojun Bu
- Department of Neuroscience, Mayo ClinicJacksonvilleUnited States
- Neuroscience Graduate Program, Mayo ClinicJacksonvilleUnited States
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23
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Ma C, Cui S, Bai Q, Tian Z, Zhang Y, Chen G, Gao X, Tian Z, Chen H, Guo J, Wan F, Zhou Z. Olfactory co-receptor is involved in host recognition and oviposition in Ophraella communa (Coleoptera: Chrysomelidae). INSECT MOLECULAR BIOLOGY 2020; 29:381-390. [PMID: 32291884 DOI: 10.1111/imb.12643] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 01/16/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Common ragweed (Ambrosia artemisiifolia) is a notorious invasive weed that has spread across most temperate regions of the world. The beetle (Ophraella communa) is considered to be an effective control agent against A. artemisiifolia. As an oligophagous insect, its olfactory system is extremely important for host seeking in the wild. To the best of our knowledge, there is no report on the molecular mechanisms underlying olfaction recognition in this beetle. Hence, in this study, we characterized the odorant receptor co-receptor of O. communa and named it as 'OcomORco'. Real-time quantitative PCR (qRT-PCR) showed that, compared to the control treatment, RNA interference (RNAi) strongly reduced the expression of OcomORco by 89% in male and 90% in female beetles. Electroantennogram assay showed that the antennal response of both male and female beetles to four volatiles of A. artemisiifolia was significantly reduced. The injected male or female beetles lost their preference for plant leaves as observed in the behavioural tests. In addition, disruption of the expression of OcomORco resulted in a reduction of oviposition, while there was no difference in larval hatching rate between control and knockdown females. We demonstrated that OcomORco plays a vital role in olfactory perception and host search in O. communa, and it is involved in oviposition in an indirect way.
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Affiliation(s)
- Chao Ma
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shaowei Cui
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- School of Plant Protection, Jilin Agricultural University, Changchun, China
| | - Qiang Bai
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Plant Protection, Yunnan Agricultural University, Kunming, China
| | - Zhenya Tian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guangmei Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xuyuan Gao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Guangxi Key Laboratory for Biology of Crop Diseases and Insect Pests, Institute of PlantProtection, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Zhenqi Tian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hongsong Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- Guangxi Key Laboratory for Biology of Crop Diseases and Insect Pests, Institute of PlantProtection, Guangxi Academy of Agricultural Sciences, Nanning, China
| | - Jianying Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fanghao Wan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhongshi Zhou
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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24
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Winwood-Smith HS, White CR, Franklin CE. Flight activity and glycogen depletion on a low-carbohydrate diet. J Exp Biol 2020; 223:jeb228379. [PMID: 32532863 DOI: 10.1242/jeb.228379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 06/04/2020] [Indexed: 08/26/2023]
Abstract
Glycogen is a critical store for locomotion. Depleted glycogen stores are associated with increased fatigue during exercise. The reduced effectiveness of low-carbohydrate diets for weight loss over longer time periods may arise because such diets reduce glycogen stores and thereby energy expenditure via physical activity. To explore the effect of a low-carbohydrate diet on activity and glycogen utilisation, we fed adult Drosophila melanogaster a standard or low-carbohydrate diet for 9 days and measured patterns of flight activity and rates of glycogen depletion. We hypothesised that flight activity and rates of glycogen depletion would be reduced on a low-carbohydrate diet. Flight activity was elevated in the low-carbohydrate group but glycogen depletion rates were unchanged. We conclude that increased activity is probably a foraging response to carbohydrate deficiency and speculate that the previously demonstrated metabolic depression that occurs on a low-carbohydrate diet in this species may allow for increased flight activity without increased glycogen depletion.
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Affiliation(s)
- Hugh S Winwood-Smith
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Craig R White
- Centre for Geometric Biology, School of Biological Sciences, Monash University, Melbourne, VIC 3800, Australia
| | - Craig E Franklin
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
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Flatt T. Life-History Evolution and the Genetics of Fitness Components in Drosophila melanogaster. Genetics 2020; 214:3-48. [PMID: 31907300 PMCID: PMC6944413 DOI: 10.1534/genetics.119.300160] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 10/03/2019] [Indexed: 12/28/2022] Open
Abstract
Life-history traits or "fitness components"-such as age and size at maturity, fecundity and fertility, age-specific rates of survival, and life span-are the major phenotypic determinants of Darwinian fitness. Analyzing the evolution and genetics of these phenotypic targets of selection is central to our understanding of adaptation. Due to its simple and rapid life cycle, cosmopolitan distribution, ease of maintenance in the laboratory, well-understood evolutionary genetics, and its versatile genetic toolbox, the "vinegar fly" Drosophila melanogaster is one of the most powerful, experimentally tractable model systems for studying "life-history evolution." Here, I review what has been learned about the evolution and genetics of life-history variation in D. melanogaster by drawing on numerous sources spanning population and quantitative genetics, genomics, experimental evolution, evolutionary ecology, and physiology. This body of work has contributed greatly to our knowledge of several fundamental problems in evolutionary biology, including the amount and maintenance of genetic variation, the evolution of body size, clines and climate adaptation, the evolution of senescence, phenotypic plasticity, the nature of life-history trade-offs, and so forth. While major progress has been made, important facets of these and other questions remain open, and the D. melanogaster system will undoubtedly continue to deliver key insights into central issues of life-history evolution and the genetics of adaptation.
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Affiliation(s)
- Thomas Flatt
- Department of Biology, University of Fribourg, CH-1700, Switzerland
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26
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Affiliation(s)
- Xiaomeng Guo
- Animal Behaviour Group Department of Psychology, Neuroscience & Behaviour McMaster University Hamilton ON Canada
| | - Reuven Dukas
- Animal Behaviour Group Department of Psychology, Neuroscience & Behaviour McMaster University Hamilton ON Canada
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27
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Papanastasiou SA, Carey JR, Papadopoulos NT. Effects of early-life protein starvation on longevity and sexual performance of male medfly. PLoS One 2019; 14:e0219518. [PMID: 31344046 PMCID: PMC6657835 DOI: 10.1371/journal.pone.0219518] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/25/2019] [Indexed: 12/16/2022] Open
Abstract
Using a well-established model species for demographic, behavioural and aging research, the Mediterranean fruit fly (Ceratitis capitata), we explored whether nutritional stress early in adult life affects the sexual performance and survival in older ages. To do so we established two different protein starvation (PS) protocols that included the elimination of proteinaceous diet either before or after sexual maturity of male medflies. The frequency of sexual signalling and the age of death were daily recorded. Sexual signalling is directly related with male mating success in this model system. PS early in adult life results in high mortality rates (similar to sugar-only fed males), which are gradually restored in more advanced ages. Provision of a proteinaceous diet following early-life PS increases straightaway male sexual signalling to levels similar with those having continuous access to proteinaceous diet. Switching diet regimes from a protein-free to a protein-rich one progressively compensates mortality rates. Apparently, males prioritize sexual signalling over lifespan. PS after attaining sexual maturity significantly reduces both longevity and sexual performance. Access to protein only early in life is insufficient to support lifetime energy-consuming behaviours such as sexual signalling. Continuous access to a proteinaceous diet determines both lifetime sexual performance and longevity. Early in life PS males prioritize the allocation of nutritional elements, when available, in sexual activities over soma-maintenance.
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Affiliation(s)
- Stella A. Papanastasiou
- Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - James R. Carey
- Department of Entomology, University of California, Davis, California, United States of America
| | - Nikos T. Papadopoulos
- Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, Volos, Greece
- * E-mail:
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28
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Allen BD, Liao C, Shu J, Muglia LJ, Majzoub JA, Diaz V, Nelson JF. Hyperadrenocorticism of calorie restriction contributes to its anti-inflammatory action in mice. Aging Cell 2019; 18:e12944. [PMID: 30938024 PMCID: PMC6516174 DOI: 10.1111/acel.12944] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/26/2019] [Accepted: 02/18/2019] [Indexed: 11/30/2022] Open
Abstract
Calorie restriction (CR), which lengthens lifespan in many species, is associated with moderate hyperadrenocorticism and attenuated inflammation. Given the anti‐inflammatory action of glucocorticoids, we tested the hypothesis that the hyperadrenocorticism of CR contributes to its attenuated inflammatory response. We used a corticotropin‐releasing‐hormone knockout (CRHKO) mouse, which is glucocorticoid insufficient. There were four controls groups: CRHKO mice and wild‐type (WT) littermates fed either ad libitum (AL) or CR (60% of AL food intake), and three experimental groups: (a) AL‐fed CRHKO mice given corticosterone (CORT) in their drinking water titrated to match the integrated 24‐hr plasma CORT levels of AL‐fed WT mice, (b) CR‐fed CRHKO mice given CORT to match the 24‐hr CORT levels of AL‐fed WT mice, and (c) CR‐fed CHRKO mice given CORT to match the 24‐hr CORT levels of CR‐fed WT mice. Inflammation was measured volumetrically as footpad edema induced by carrageenan injection. As previously observed, CR attenuated footpad edema in WT mice. This attenuation was significantly blocked in CORT‐deficient CR‐fed CRHKO mice. Replacement of CORT in CR‐fed CRHKO mice to the elevated levels observed in CR‐fed WT mice, but not to the levels observed in AL‐fed WT mice, restored the anti‐inflammatory effect of CR. These results indicate that the hyperadrenocorticism of CR contributes to the anti‐inflammatory action of CR, which may in turn contribute to its life‐extending actions.
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Affiliation(s)
- Brian D. Allen
- Department of Cellular and Integrative Physiology University of Texas Health Science Center at San Antonio San Antonio Texas
- Barshop Institute for Longevity and Aging Studies The University of Texas Health Science Center at San Antonio San Antonio Texas
- Geriatric Research, Education and Clinical Center and Research Service South Texas Veterans Health Care System San Antonio Texas
| | - Chen‐Yu Liao
- Department of Cellular and Integrative Physiology University of Texas Health Science Center at San Antonio San Antonio Texas
- Barshop Institute for Longevity and Aging Studies The University of Texas Health Science Center at San Antonio San Antonio Texas
| | - Jianhua Shu
- Department of Cellular and Integrative Physiology University of Texas Health Science Center at San Antonio San Antonio Texas
- Barshop Institute for Longevity and Aging Studies The University of Texas Health Science Center at San Antonio San Antonio Texas
- Geriatric Research, Education and Clinical Center and Research Service South Texas Veterans Health Care System San Antonio Texas
| | - Louis J. Muglia
- Department of Molecular Biology and Pharmacology Washington University School of Medicine St. Louis Missouri
| | - Joseph A. Majzoub
- Division of Endocrinology, Department of Medicine Boston Children’s Hospital, Harvard Medical School Boston Massachusetts
| | - Vivian Diaz
- Barshop Institute for Longevity and Aging Studies The University of Texas Health Science Center at San Antonio San Antonio Texas
| | - James F. Nelson
- Department of Cellular and Integrative Physiology University of Texas Health Science Center at San Antonio San Antonio Texas
- Barshop Institute for Longevity and Aging Studies The University of Texas Health Science Center at San Antonio San Antonio Texas
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29
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Chen K, Luan X, Liu Q, Wang J, Chang X, Snijders AM, Mao JH, Secombe J, Dan Z, Chen JH, Wang Z, Dong X, Qiu C, Chang X, Zhang D, Celniker SE, Liu X. Drosophila Histone Demethylase KDM5 Regulates Social Behavior through Immune Control and Gut Microbiota Maintenance. Cell Host Microbe 2019; 25:537-552.e8. [PMID: 30902578 DOI: 10.1016/j.chom.2019.02.003] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 12/05/2018] [Accepted: 02/15/2019] [Indexed: 12/20/2022]
Abstract
Loss-of-function mutations in the histone demethylases KDM5A, KDM5B, or KDM5C are found in intellectual disability (ID) and autism spectrum disorders (ASD) patients. Here, we use the model organism Drosophila melanogaster to delineate how KDM5 contributes to ID and ASD. We show that reducing KDM5 causes intestinal barrier dysfunction and changes in social behavior that correlates with compositional changes in the gut microbiota. Therapeutic alteration of the dysbiotic microbiota through antibiotic administration or feeding with a probiotic Lactobacillus strain partially rescues the behavioral, lifespan, and cellular phenotypes observed in kdm5-deficient flies. Mechanistically, KDM5 was found to transcriptionally regulate component genes of the immune deficiency (IMD) signaling pathway and subsequent maintenance of host-commensal bacteria homeostasis in a demethylase-dependent manner. Together, our study uses a genetic approach to dissect the role of KDM5 in the gut-microbiome-brain axis and suggests that modifying the gut microbiome may provide therapeutic benefits for ID and ASD patients.
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Affiliation(s)
- Kun Chen
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Pathogen of Jiangsu Province, Center of Global Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Holistic Integrative Enterology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Xiaoting Luan
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Qisha Liu
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Pathogen of Jiangsu Province, Center of Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Jianwei Wang
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Pathogen of Jiangsu Province, Center of Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Xinxia Chang
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Pathogen of Jiangsu Province, Center of Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Antoine M Snijders
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Jian-Hua Mao
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Julie Secombe
- Departments of Genetics and Neuroscience, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Zhou Dan
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Jian-Huan Chen
- Genomic and Precision Medicine Laboratory, Department of Public Health, Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Zibin Wang
- Center for Analysis and Testing, Nanjing Medical University, Nanjing 211166, China
| | - Xiao Dong
- Departments of Genetics and Neuroscience, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Chen Qiu
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Xiaoai Chang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing 211166, China
| | - Dong Zhang
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Susan E Celniker
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Xingyin Liu
- Department of Pathogen Biology-Microbiology Division, State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Pathogen of Jiangsu Province, Center of Global Health, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing 211166, China; Key Laboratory of Holistic Integrative Enterology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China.
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30
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Lipkowski K, Plath M, Klaus S, Sommer-Trembo C. Population density affects male mate choosiness and morphology in the mate-guarding amphipodGammarus roeselii(Crustacea: Amphipoda). Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/bly201] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Konrad Lipkowski
- Department of Wildlife-/Zoo-Animal Biology and Systematics, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Martin Plath
- College of Animal Science and Technology, Northwest A&F University, Yangling, PR China
| | - Sebastian Klaus
- Department of Ecology and Evolution, Goethe University Frankfurt, Frankfurt am Main, Germany
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31
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Green CL, Lamming DW. Regulation of metabolic health by essential dietary amino acids. Mech Ageing Dev 2019; 177:186-200. [PMID: 30044947 PMCID: PMC6333505 DOI: 10.1016/j.mad.2018.07.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/27/2018] [Accepted: 07/16/2018] [Indexed: 12/22/2022]
Abstract
Although the beneficial effects of calorie restriction (CR) on health and aging were first observed a century ago, the specific macronutrients and molecular processes that mediate the effect of CR have been heavily debated. Recently, it has become clear that dietary protein plays a key role in regulating both metabolic health and longevity, and that both the quantity and quality - the specific amino acid composition - of dietary protein mediates metabolic health. Here, we discuss recent findings in model organisms ranging from yeast to mice and humans regarding the influence of dietary protein as well as specific amino acids on metabolic health, and the physiological and molecular mechanisms which may mediate these effects. We then discuss recent findings which suggest that the restriction of specific dietary amino acids may be a potent therapy to treat or prevent metabolic syndrome. Finally, we discuss the potential for dietary restriction of specific amino acids - or pharmaceuticals which harness these same mechanisms - to promote healthy aging.
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Affiliation(s)
- Cara L Green
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
| | - Dudley W Lamming
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI, USA.
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32
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Niraula P, Ghimire S, Lee H, Kim MS. Ilex paraguariensis Extends Lifespan and Increases an Ability to Resist Environmental Stresses in Drosophila. Rejuvenation Res 2018; 21:497-505. [DOI: 10.1089/rej.2017.2023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Prakshit Niraula
- College of Pharmacy, Department of Pharmacy, Inje University, Gimhae, Republic of Korea
| | - Saurav Ghimire
- College of Pharmacy, Department of Pharmacy, Inje University, Gimhae, Republic of Korea
| | - Hanna Lee
- College of Pharmacy, Department of Pharmacy, Inje University, Gimhae, Republic of Korea
| | - Man Su Kim
- College of Pharmacy, Department of Pharmacy, Inje University, Gimhae, Republic of Korea
- Inje Institute of Pharmaceutical Sciences and Research, Inje University, Gimhae, Republic of Korea
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33
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Salinari G, Ruiu G. The effect of disease burden on the speed of aging: an analysis of the Sardinian mortality transition. GENUS 2018; 74:9. [PMID: 30147125 PMCID: PMC6097800 DOI: 10.1186/s41118-018-0028-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 01/15/2018] [Indexed: 01/09/2023] Open
Abstract
According to the constant senescence hypothesis, senescence cannot be accelerated or decelerated by exogenous factors. Two contrasting theories have been proposed in the literature. According to the inflammaging theory, those individuals who have experienced a higher antigenic load will experience more rapid senescence. Instead, the calorie restriction theory stresses that excessive daily calorie intake can produce an acceleration in senescence. To test these theories, this paper analyzes the evolution of the rate of aging in Sardinia (Italy). In this population, the epidemiological transition started without any substantial modification in nutritional levels. This allows us to test the constant senescence hypothesis against the inflammaging theory, without the possible confounding effect produced by the nutrition transition. To accomplish this aim, the longitudinal life tables from 80 years onwards for Sardinian cohorts born between 1866 and 1908 were reconstituted. They were then used to estimate the rate of aging by means of the Gamma-Gompertz model. Coherently with the inflammaging theory, the results show that the Sardinian population experienced a dramatic decrease in the rate of aging that coincided with the onset of the epidemiological transition.
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Affiliation(s)
- Giambattista Salinari
- Department of Economics and Business, University of Sassari, Via Muroni 25, 07100 Sassari, Italy
| | - Gabriele Ruiu
- Department of Economics and Business, University of Sassari, Via Muroni 25, 07100 Sassari, Italy
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34
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The effects of graded levels of calorie restriction: XI. Evaluation of the main hypotheses underpinning the life extension effects of CR using the hepatic transcriptome. Aging (Albany NY) 2018; 9:1770-1824. [PMID: 28768896 PMCID: PMC5559174 DOI: 10.18632/aging.101269] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 07/27/2017] [Indexed: 12/15/2022]
Abstract
Calorie restriction (CR) may extend longevity by modulating the mechanisms involved in aging. Different hypotheses have been proposed for its main mode of action. We quantified hepatic transcripts of male C57BL/6 mice exposed to graded levels of CR (0% to 40% CR) for three months, and evaluated the responses relative to these various hypotheses. Of the four main signaling pathways implied to be linked to the impact of CR on lifespan (insulin/insulin like growth factor 1 (IGF-1), nuclear factor-kappa beta (NF-ĸB), mechanistic target of rapamycin (mTOR) and sirtuins (SIRTs)), all the pathways except SIRT were altered in a manner consistent with increased lifespan. However, the expression levels of SIRT4 and SIRT7 were decreased with increasing levels of CR. Changes consistent with altered fuel utilization under CR may reduce reactive oxygen species production, which was paralleled by reduced protection. Downregulated major urinary protein (MUP) transcription suggested reduced reproductive investment. Graded CR had a positive effect on autophagy and xenobiotic metabolism, and was protective with respect to cancer signaling. CR had no significant effect on fibroblast growth factor-21 (FGF21) transcription but affected transcription in the hydrogen sulfide production pathway. Responses to CR were consistent with several different hypotheses, and the benefits of CR on lifespan likely reflect the combined impact on multiple aging related processes.
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35
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Staats S, Lüersen K, Wagner AE, Rimbach G. Drosophila melanogaster as a Versatile Model Organism in Food and Nutrition Research. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:3737-3753. [PMID: 29619822 DOI: 10.1021/acs.jafc.7b05900] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Drosophila melanogaster has been widely used in the biological sciences as a model organism. Drosophila has a relatively short life span of 60-80 days, which makes it attractive for life span studies. Moreover, approximately 60% of the fruit fly genes are orthologs to mammals. Thus, metabolic and signal transduction pathways are highly conserved. Maintenance and reproduction of Drosophila do not require sophisticated equipment and are rather cheap. Furthermore, there are fewer ethical issues involved in experimental Drosophila research compared with studies in laboratory rodents, such as rats and mice. Drosophila is increasingly recognized as a model organism in food and nutrition research. Drosophila is often fed complex solid diets based on yeast, corn, and agar. There are also so-called holidic diets available that are defined in terms of their amino acid, fatty acid, carbohydrate, vitamin, mineral, and trace element compositions. Feed intake, body composition, locomotor activity, intestinal barrier function, microbiota, cognition, fertility, aging, and life span can be systematically determined in Drosophila in response to dietary factors. Furthermore, diet-induced pathophysiological mechanisms including inflammation and stress responses may be evaluated in the fly under defined experimental conditions. Here, we critically evaluate Drosophila melanogaster as a versatile model organism in experimental food and nutrition research, review the corresponding data in the literature, and make suggestions for future directions of research.
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Affiliation(s)
- Stefanie Staats
- Institute of Human Nutrition and Food Science , University of Kiel , Hermann-Rodewald-Strasse 6 , D-24118 Kiel , Germany
| | - Kai Lüersen
- Institute of Human Nutrition and Food Science , University of Kiel , Hermann-Rodewald-Strasse 6 , D-24118 Kiel , Germany
| | - Anika E Wagner
- Institute of Nutritional Medicine , University of Lübeck , Ratzeburger Allee 160 , D-23538 Lübeck , Germany
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science , University of Kiel , Hermann-Rodewald-Strasse 6 , D-24118 Kiel , Germany
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36
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Lihoreau M, Charleston MA, Senior AM, Clissold FJ, Raubenheimer D, Simpson SJ, Buhl J. Collective foraging in spatially complex nutritional environments. Philos Trans R Soc Lond B Biol Sci 2018; 372:rstb.2016.0238. [PMID: 28673915 DOI: 10.1098/rstb.2016.0238] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2016] [Indexed: 11/12/2022] Open
Abstract
Nutrition impinges on virtually all aspects of an animal's life, including social interactions. Recent advances in nutritional ecology show how social animals often trade-off individual nutrition and group cohesion when foraging in simplified experimental environments. Here, we explore how the spatial structure of the nutritional landscape influences these complex collective foraging dynamics in ecologically realistic environments. We introduce an individual-based model integrating key concepts of nutritional geometry, collective animal behaviour and spatial ecology to study the nutritional behaviour of animal groups in large heterogeneous environments containing foods with different abundance, patchiness and nutritional composition. Simulations show that the spatial distribution of foods constrains the ability of individuals to balance their nutrient intake, the lowest performance being attained in environments with small isolated patches of nutritionally complementary foods. Social interactions improve individual regulatory performances when food is scarce and clumpy, but not when it is abundant and scattered, suggesting that collective foraging is favoured in some environments only. These social effects are further amplified if foragers adopt flexible search strategies based on their individual nutritional state. Our model provides a conceptual and predictive framework for developing new empirically testable hypotheses in the emerging field of social nutrition.This article is part of the themed issue 'Physiological determinants of social behaviour in animals'.
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Affiliation(s)
- Mathieu Lihoreau
- Research Center on Animal Cognition (CRCA), Center for Integrative Biology (CBI), University Paul Sabatier, CNRS, UPS, 118 route de Narbonne, Toulouse 31200, France
| | - Michael A Charleston
- School of Physical Sciences, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Alistair M Senior
- Charles Perkins Centre, University of Tasmania, Hobart, Tasmania 7005, Australia.,School of Mathematics and Statistics, University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Fiona J Clissold
- Charles Perkins Centre, University of Tasmania, Hobart, Tasmania 7005, Australia.,School of Life and Environmental Sciences, The University of Sydney, NSW 2006, Australia
| | - David Raubenheimer
- Charles Perkins Centre, University of Tasmania, Hobart, Tasmania 7005, Australia.,School of Life and Environmental Sciences, The University of Sydney, NSW 2006, Australia
| | - Stephen J Simpson
- Charles Perkins Centre, University of Tasmania, Hobart, Tasmania 7005, Australia.,School of Life and Environmental Sciences, The University of Sydney, NSW 2006, Australia
| | - Jerome Buhl
- School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, Southern Australia 5005, Australia
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37
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Lin W, Yeh S, Fan S, Chen L, Yen J, Fu T, Wu M, Wang P. Insulin signaling in female
Drosophila
links diet and sexual attractiveness. FASEB J 2018. [DOI: 10.1096/fsb2fj201800067r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wei‐Sheng Lin
- Graduate Institute of Brain and Mind SciencesCollege of MedicineNeurobiology and Cognitive Science CenterCenter for Systems BiologyNational Taiwan UniversityTaipeiTaiwan
- Department of PediatricsNational Taiwan University Hospital YunlinYunlinTaiwan
| | - Sheng‐Rong Yeh
- Graduate Institute of Brain and Mind SciencesCollege of MedicineNeurobiology and Cognitive Science CenterCenter for Systems BiologyNational Taiwan UniversityTaipeiTaiwan
| | - Shou‐Zen Fan
- Department of AnesthesiologyDepartment of Internal MedicineNational Taiwan University HospitalNational Taiwan UniversityTaipeiTaiwan
| | - Liang‐Yu Chen
- Department of BiotechnologyMingchuan UniversityTaoyuanTaiwan
| | - Jui‐Hung Yen
- Department of Microbiology and ImmunologyIndiana University School of MedicineFort WayneIndianaUSA
| | - Tsai‐Feng Fu
- Department of Applied ChemistryNational Chinan UniversityNantouTaiwan
| | - Ming‐Shiang Wu
- Department of Internal MedicineNational Taiwan University HospitalNational Taiwan UniversityTaipeiTaiwan
| | - Pei‐Yu Wang
- Graduate Institute of Brain and Mind SciencesCollege of MedicineNeurobiology and Cognitive Science CenterCenter for Systems BiologyNational Taiwan UniversityTaipeiTaiwan
- Neurobiology and Cognitive Science CenterCenter for Systems BiologyNational Taiwan UniversityTaipeiTaiwan
- Center for Systems BiologyNational Taiwan UniversityTaipeiTaiwan
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38
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Lin WS, Yeh SR, Fan SZ, Chen LY, Yen JH, Fu TF, Wu MS, Wang PY. Insulin signaling in female Drosophila links diet and sexual attractiveness. FASEB J 2018; 32:3870-3877. [PMID: 29475396 DOI: 10.1096/fj.201800067r] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Appropriate sexual selection or individual sexual attractiveness is closely associated with the reproductive success of a species. Here, we report that young male flies exhibit innate courtship preference for female flies that are raised on higher-yeast diets and that have greater body weight and fecundity, but reduced locomotor activity and shortened lifespan. Male flies discriminate among females that have been fed diets that contain 3 different yeast concentrations-1, 5, and 20% yeast- via gustatory, but not visual or olfactory, perception. Female flies that are raised on higher-yeast diets exhibit elevated expression levels of Drosophila insulin-like peptides (di lps), and we demonstrate that hypomorphic mutations of di lp2, 3, 5 or foxo, as well as oenocyte-specific gene disruption of the insulin receptor, all abolish this male courtship preference for high yeast-fed females. Moreover, our data demonstrate that disrupted di lp signaling can alter the expression profile of some cuticular hydrocarbons (CHCs) in female flies, and that genetic inhibition of an enzyme involved in the biosynthesis of CHCs in oenocytes, elongase F, also eliminates the male courtship preference. Together, our findings provide mechanistic insights that link female reproductive potential to sexual attractiveness, thereby encouraging adaptive mating and optimal reproductive success.-Lin, W.-S., Yeh, S.-R., Fan, S.-Z., Chen, L.-Y., Yen, J.-H., Fu, T.-F., Wu, M.-S., Wang, P.-Y. Insulin signaling in female Drosophila links diet and sexual attractiveness.
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Affiliation(s)
- Wei-Sheng Lin
- Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Pediatrics, National Taiwan University Hospital Yunlin, Yunlin, Taiwan
| | - Sheng-Rong Yeh
- Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shou-Zen Fan
- Department of Anesthesiology, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
| | - Liang-Yu Chen
- Department of Biotechnology, Mingchuan University, Taoyuan, Taiwan
| | - Jui-Hung Yen
- Department of Microbiology and Immunology, Indiana University School of Medicine, Fort Wayne, Indiana, USA
| | - Tsai-Feng Fu
- Department of Applied Chemistry, National Chinan University, Nantou, Taiwan
| | - Ming-Shiang Wu
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
| | - Pei-Yu Wang
- Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.,Neurobiology and Cognitive Science Center, National Taiwan University, Taipei, Taiwan.,Center for Systems Biology, National Taiwan University, Taipei, Taiwan
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39
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Grigura V, Barbier M, Zarov AP, Kaufman CK. Feeding amount significantly alters overt tumor onset rate in a zebrafish melanoma model. Biol Open 2018; 7:7/1/bio030726. [PMID: 29362277 PMCID: PMC5829507 DOI: 10.1242/bio.030726] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The manner in which zebrafish are fed may have important impacts on the behavior of disease models. We examined the effect of different feeding regimens on the rate of overt melanoma tumor onset in a p53/BRAF-dependent model, a commonly used read-out in this and many other cancer models. We demonstrate that increased feeding leads to more rapid melanoma onset. The ability to modulate overt tumor onset rates with this regimen indicates additional flexibility to ‘tune’ the system to more quickly generate tumors for study and to begin to address questions related to cancer metabolism using the zebrafish model. Summary: The rate of tumor formation in a BRAF-driven zebrafish melanoma model can be significantly altered by increased feeding and opens a new avenue for studying the underlying metabolic pathways involved.
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Affiliation(s)
- Vadim Grigura
- Division of Medical Oncology, Department of Medicine and Department of Developmental Biology, Washington University in Saint Louis, 4518 McKinley Ave., CB 8069, St. Louis, MO 63110, USA
| | - Megan Barbier
- Division of Medical Oncology, Department of Medicine and Department of Developmental Biology, Washington University in Saint Louis, 4518 McKinley Ave., CB 8069, St. Louis, MO 63110, USA
| | - Anna P Zarov
- School of Arts and Sciences, Washington University in Saint Louis, 1 Brookings Drive, St. Louis, MO, 63130, USA
| | - Charles K Kaufman
- Division of Medical Oncology, Department of Medicine and Department of Developmental Biology, Washington University in Saint Louis, 4518 McKinley Ave., CB 8069, St. Louis, MO 63110, USA
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40
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Güneş E, Danacıoğlu DA. The effect of olive (Olea europaea L.) phenolics and sugar on Drosophila melanogaster’s development. ANIM BIOL 2018. [DOI: 10.1163/15707563-17000162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Olive leaves (Olea europaea L.) contain phenolics that are used for various aims and can also be utilized as free radical scavengers and as a powerful antioxidant source. In this study, our aim was to observe the effects of olive phenolics on the survival rate, development, sex ratio, and adult longevity of Drosophila melanogaster Meigen (Diptera: Drosophilidae) fed with sugar and with a sugar-free diet. The amount of malondialdehyde and the activity of glutathione S-transferase were examined with UV-VIS spectrophotometry in third-stage larvae, pupae and adults. For this purpose, dried olive fruit and leaf extracts were added at different concentrations to the insect’s sugary diets. The results reveal that 12 mg/L phenolic fruit extract and 4 M sucrose had a negative impact on the development and survival of these insects. It was also found that phenolic leaf extract and low sugar concentrations changed the sex ratio, leading to fewer females and more males. The use of phenolic fruit and phenolic leaf extracts with increased sugar-based diets raised the amount of oxidation as well as the detoxification activity in this model organism. These results demonstrate that low amounts of sugar and olive phenolics may be used as an adjunct to adult nutrients to improve the insect’s adult characteristics.
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Affiliation(s)
- Eda Güneş
- 1Konya Necmettin Erbakan University, Faculty of Tourism, Department of Gastronomy and Culinary Arts, 42300, Konya, Turkey
| | - Derya Arslan Danacıoğlu
- 2Konya Necmettin Erbakan University, Faculty of Engineering and Architecture, Department of Food Engineering, 42300, Konya, Turkey
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41
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Woods JK, Ziafazeli T, Rogina B. Rpd3 interacts with insulin signaling in Drosophila longevity extension. Aging (Albany NY) 2017; 8:3028-3044. [PMID: 27852975 PMCID: PMC5191884 DOI: 10.18632/aging.101110] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 09/26/2016] [Indexed: 11/26/2022]
Abstract
Histone deacetylase (HDAC) 1 regulates chromatin compaction and gene expression by removing acetyl groups from lysine residues within histones. HDAC1 affects a variety of processes including proliferation, development, metabolism, and cancer. Reduction or inhibition of Rpd3, yeast and flyHDAC1 orthologue, extends longevity. However, the mechanism of rpd3's effects on longevity remains unclear. Here we report an overlap between rpd3 and the Insulin/Insulin-like growth factor signaling (IIS) longevity pathways. We demonstrated that rpd3 reduction downregulates expression of members of the IIS pathway, which is associated with altered metabolism, increased energy storage, and higher resistance to starvation and oxidative stress. Genetic studies support the role of IIS in rpd3 longevity pathway, as illustrated with reduced stress resistance and longevity of flies double mutant for rpd3 and dfoxo, a downstream target of IIS pathway compared to rpd3 single mutant flies. Our data suggest that increased dfoxo is a mediator of rpd3's effects on fly longevity and intermediary metabolism, and confer a new link between rpd3 and IIS longevity pathways.
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Affiliation(s)
- Jared K Woods
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA
| | - Tahereh Ziafazeli
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA.,current address: Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Health Sciences, McMaster University, Ontario, Canada
| | - Blanka Rogina
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA.,Institute for Systems Genomics, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA
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42
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Rogina B. INDY-A New Link to Metabolic Regulation in Animals and Humans. Front Genet 2017; 8:66. [PMID: 28596784 PMCID: PMC5442177 DOI: 10.3389/fgene.2017.00066] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 05/09/2017] [Indexed: 12/02/2022] Open
Abstract
The Indy (I’m Not Dead Yet) gene encodes the fly homolog of the mammalian SLC13A5 citrate transporter. Reduced expression of the Indy gene in flies and worms extends their longevity. INDY is expressed in the plasma membrane of metabolically active tissues. Decreased expression of Indy in worms, flies, mice, and rats alters metabolism in a manner similar to calorie restriction. Reducing INDY activity prevents weight gain in flies, worms, and mice, and counteracts the negative effects of age or a high fat diet on metabolism and insulin sensitivity. The metabolic effects of reducing INDY activity are the result of reduced cytoplasmic citrate. Citrate is a key metabolite and has a central role in energy status of the cell by effecting lipid and carbohydrate metabolism and energy production. Thereby newly described drugs that reduce INDY transporting activity increase insulin sensitivity and reduce hepatic lipid levels via its effect on hepatic citrate uptake. A recent report presented the first direct link between increased hepatic levels of human INDY, insulin resistance, and non-alcoholic fatty liver disease in obese humans. Similarly increased hepatic mIndy levels were observed in non-human primates fed on a high fat diet for 2 years. This effect is mediated via the stimulatory effect of the interleukin-6/Stat3 pathway on mINDY hepatic expression. These findings make INDY a potential and very promising target for the treatment of metabolic disorders in humans.
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Affiliation(s)
- Blanka Rogina
- Department of Genetics and Genome Sciences, Institute for Systems Genomics, School of Medicine, University of Connecticut Health Center, FarmingtonCT, United States
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43
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Tissue-specific transcription of the neuronal gene Lim3 affects Drosophila melanogaster lifespan and locomotion. Biogerontology 2017; 18:739-757. [DOI: 10.1007/s10522-017-9704-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 04/27/2017] [Indexed: 12/22/2022]
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44
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Hormetic efficacy of rutin to promote longevity in Drosophila melanogaster. Biogerontology 2017; 18:397-411. [PMID: 28389882 DOI: 10.1007/s10522-017-9700-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/06/2017] [Indexed: 10/19/2022]
Abstract
Hormetins are compounds that mediate hormesis by being beneficial at low doses but detrimental at high doses. Recent studies have highlighted that many compounds that extended lifespan in model organisms did so by mediating hormesis. Rutin is a glycosylate conjugate of quercetin and rutinose and is abundant in citrus fruits and buckwheat seeds. Rutin possess ROS scavenging, anti-cancer, cardio-protective, skin-regenerative and neuro-protective properties. Drosophila melanogaster is an attractive model organism for longevity studies owing to its homology of organ and cellular-pathways with mammals. In this study, we aimed to understand the effect of rutin on extending longevity in Drosophila melanogaster. Male and female flies were administered with a range of rutin doses (100-800 µM) to analyse whether rutin mediated lifespan-extension by hormesis. Effect of rutin on physiological parameters like food intake, fecundity, climbing activity, development and resistance to various stresses was also studied. Lifespan assays showed that rutin at 200 and 400 µM significantly extended median lifespan in both male and female flies beyond which flies exhibited drastically reduced longevity. Increase in survival at 400 µM was associated with reduced food intake and fecundity. Flies exhibited improved climbing capability with both 200 and 400 µM rutin. Flies fed with 100 and 200 µM rutin exhibited enhanced survival upon exposure to oxidative stress with 400 µM rutin exhibiting no improvement in median lifespan following oxidative stress. Analysis of endogenous peroxide upon treatment with rutin (100-400 µM) with or without 5% H2O2 showed elevated levels of endogenous peroxide with 400 µM rutin whereas no increase in hydrogen peroxide level was observed with rutin at 100 and 200 µM. Finally, gene expression studies in male flies revealed that rutin treatment at 200 and/or 400 µM elevated transcript levels of dFoxO, MnSod, Cat, dTsc1, dTsc2, Thor, dAtg1, dAtg5 and dAtg7 and reduced transcript levels of dTor. Collectively, rutin at 200 and 400 µM improved longevity in flies; 200 µM rutin acted as a mild stressor to prolong lifespan in flies by mediating hormesis whereas 400 µM, being a high dose for best positive effects.
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45
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Woods JK, Ziafazeli T, Rogina B. The effects of reduced rpd3 levels on fly physiology. ACTA ACUST UNITED AC 2017; 4:169-179. [PMID: 28447071 PMCID: PMC5389049 DOI: 10.3233/nha-160016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND: Rpd3 is a conserved histone deacetylase that removes acetyl groups from lysine residues within histones and other proteins. Reduction or inhibition of Rpd3 extends longevity in yeast, worms, and flies. Previous studies in flies suggest an overlap with the mechanism of lifespan extension by dietary restriction. However, the mechanism of rpd3’s effects on longevity remains unclear. OBJECTIVES: In this study we investigated how rpd3 reduction affects fly spontaneous physical activity, fecundity, and stress resistance. METHODS: We examined the effects of rpd3 reduction on fly spontaneous physical activity by using population monitors, we determined female fecundity by counting daily egg laying, and we determined fly survivorship in response to starvation and paraquat. RESULTS: In flies, rpd3 reduction increases peak spontaneous physical activity of rpd3def male flies at a young age but does not affect total 24 hour activity. Male and female rpd3def mutants are more resistant to starvation on low and high calorie diets. In addition, increased resistance to paraquat was observed in females of one allele. A decrease in rpd3 levels does not affect female fecundity. CONCLUSIONS: A decrease in rpd3 levels mirrors some but not all changes associated with calorie restriction, illustrated by an increased peak of spontaneous activity in rpd3def/+ heterozygous male flies but no effect on total spontaneous activity and fecundity.
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Affiliation(s)
- Jared K Woods
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, USA
| | - Tahereh Ziafazeli
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, USA.,Present address: Department of Pediatrics, Division of Pediatric Endocrinology, Faculty of Health Sciences, McMaster University, ON, Canada
| | - Blanka Rogina
- Department of Genetics & Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT, USA.,Institute for Systems Genomics, School of Medicine, University of Connecticut Health, Farmington, CT, USA
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46
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Jujube (Ziziphus Jujuba Mill.) fruit feeding extends lifespan and increases tolerance to environmental stresses by regulating aging-associated gene expression in Drosophila. Biogerontology 2017; 18:263-273. [PMID: 28251407 DOI: 10.1007/s10522-017-9686-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/22/2017] [Indexed: 01/16/2023]
Abstract
Jujube (Ziziphus Jujuba Mill.) fruit has been utilized as an adjunct to alleviate medical symptoms including, but not limited to, anorexia, fatigue, anxiety and mild diarrhea for centuries. Despite a growing body of literature revealing jujube fruit's health promoting properties such as anti-cancer, anti-inflammation and anti-oxidant effects (shown with cell-based in vitro platforms), there is a paucity of studies systemically examining its impact on whole organisms or throughout the entire course of life utilizing in vivo model systems. Thus, here in this study, we conducted a series of experiments to investigate if jujube fruit can modify an organism's longevity using a live Drosophila model. We found that jujube fruit feeding extended not only lifespan but also healthspan examined by stress assays such as starvation and paraquat treatment. In an effort to shed light on the mechanisms of these jujube-related benefits at the molecular level, we report that messenger RNA (mRNA) levels of 14-3-3ε, a negative FoxO (Forkhead box O transcription factor) regulator, was dramatically diminished while the abundance of d4E-BP mRNA transcript (drosophila eukaryotic translation initiation factor 4E binding protein), a FoxO target gene, was increased, suggesting enhanced FoxO activity with jujube fruit feeding. In conclusion, we hope our results will lead to multidisciplinary research to investigate the potential benefit of jujube fruit as a novel anti-aging agent.
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47
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Nelson CS, Beck JN, Wilson KA, Pilcher ER, Kapahi P, Brem RB. Cross-phenotype association tests uncover genes mediating nutrient response in Drosophila. BMC Genomics 2016; 17:867. [PMID: 27809764 PMCID: PMC5095962 DOI: 10.1186/s12864-016-3137-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 09/28/2016] [Indexed: 11/14/2022] Open
Abstract
Background Obesity-related diseases are major contributors to morbidity and mortality in the developed world. Molecular diagnostics and targets of therapies to combat nutritional imbalance are urgently needed in the clinic. Invertebrate animals have been a cornerstone of basic research efforts to dissect the genetics of metabolism and nutrient response. We set out to use fruit flies reared on restricted and nutrient-rich diets to identify genes associated with starvation resistance, body mass and composition, in a survey of genetic variation across the Drosophila Genetic Reference Panel (DGRP). Results We measured starvation resistance, body weight and composition in DGRP lines on each of two diets and used several association mapping strategies to harness this panel of phenotypes for molecular insights. We tested DNA sequence variants for a relationship with single metabolic traits and with multiple traits at once, using a scheme for cross-phenotype association mapping; we focused our association tests on homologs of human disease genes and common polymorphisms; and we tested for gene-by-diet interactions. The results revealed gene and gene-by-diet associations between 17 variants and body mass, whole-body triglyceride and glucose content, or starvation resistance. Focused molecular experiments validated the role in body mass of an uncharacterized gene, CG43921 (which we rename heavyweight), and previously unknown functions for the diacylglycerol kinase rdgA, the huntingtin homolog htt, and the ceramide synthase schlank in nutrient-dependent body mass, starvation resistance, and lifespan. Conclusions Our findings implicate a wealth of gene candidates in fly metabolism and nutrient response, and ascribe novel functions to htt, rdgA, hwt and schlank. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3137-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Christopher S Nelson
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA
| | - Jennifer N Beck
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA.,Department of Urology, University of California, San Francisco, CA, USA
| | - Kenneth A Wilson
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA.,Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Elijah R Pilcher
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA
| | - Pankaj Kapahi
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA. .,Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA. .,Department of Urology, University of California, San Francisco, CA, USA.
| | - Rachel B Brem
- Buck Institute for Research on Aging, 8001 Redwood Blvd., Novato, CA, 94947, USA. .,Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA. .,Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, USA.
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48
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Frankel S, Woods J, Ziafazeli T, Rogina B. RPD3 histone deacetylase and nutrition have distinct but interacting effects on Drosophila longevity. Aging (Albany NY) 2016; 7:1112-29. [PMID: 26647291 PMCID: PMC4712336 DOI: 10.18632/aging.100856] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Single-gene mutations that extend longevity have revealed regulatory pathways related to aging and longevity. RPD3 is a conserved histone deacetylase (Class I HDAC). Previously we showed that Drosophila rpd3 mutations increase longevity. Here we tested the longevity effects of RPD3 on multiple nutrient levels. Dietary restriction (DR) has additive effects on RPD3-mediated longevity extension, but the effect may be modestly attenuated relative to controls. RPD3 and DR therefore appear to operate by distinct but interacting mechanisms. Since RPD3 regulates transcription, the mRNA levels for two proteins involved in nutrient signaling, 4E-BP and Tor, were examined in rpd3 mutant flies. 4E-BP mRNA was reduced under longevity-increasing conditions. Epistasis between RPD3 and 4E-BP with regard to longevity was then tested. Flies only heterozygous for a mutation in Thor, the 4E-BP gene, have modestly decreased life spans. Flies mutant for both rpd3 and Thor show a superposition of a large RPD3-mediated increase and a small Thor-mediated decrease in longevity at all food levels, consistent with each gene product having distinct effects on life span. However, DR-mediated extension was absent in males carrying both mutations and lessened in females. Our results support the view that multiple discrete but interacting mechanisms regulate longevity.
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Affiliation(s)
- Stewart Frankel
- Department of Biology, University of Hartford, West Hartford, CT 06117, USA
| | - Jared Woods
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA
| | - Tahereh Ziafazeli
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA.,Current address: Division of Pediatric Endocrinology, Department of Pediatrics, Faculty of Health Sciences, McMaster University, Ontario, Canada
| | - Blanka Rogina
- Department of Genetics and Genome Sciences, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA.,Institute for Systems Genomics, School of Medicine, University of Connecticut Health, Farmington, CT 06030, USA
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49
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Lucanic M, Garrett T, Yu I, Calahorro F, Asadi Shahmirzadi A, Miller A, Gill MS, Hughes RE, Holden‐Dye L, Lithgow GJ. Chemical activation of a food deprivation signal extends lifespan. Aging Cell 2016; 15:832-41. [PMID: 27220516 PMCID: PMC5013014 DOI: 10.1111/acel.12492] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2016] [Indexed: 12/29/2022] Open
Abstract
Model organisms subject to dietary restriction (DR) generally live longer. Accompanying this lifespan extension are improvements in overall health, based on multiple metrics. This indicates that pharmacological treatments that mimic the effects of DR could improve health in humans. To find new chemical structures that extend lifespan, we screened 30 000 synthetic, diverse drug‐like chemicals in Caenorhabditis elegans and identified several structurally related compounds that acted through DR mechanisms. The most potent of these NP1 impinges upon a food perception pathway by promoting glutamate signaling in the pharynx. This results in the overriding of a GPCR pathway involved in the perception of food and which normally acts to decrease glutamate signals. Our results describe the activation of a dietary restriction response through the pharmacological masking of a novel sensory pathway that signals the presence of food. This suggests that primary sensory pathways may represent novel targets for human pharmacology.
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Affiliation(s)
- Mark Lucanic
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
| | - Theo Garrett
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
| | - Ivan Yu
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
- Dominican University of California 50 Acacia Avenue San Rafael CA USA
| | - Fernando Calahorro
- Center for Biological Sciences Institute for Life Sciences University of Southampton Southampton UK
| | - Azar Asadi Shahmirzadi
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
- Davis School of Gerontology University of Southern California Los Angeles CA USA
| | - Aaron Miller
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
| | - Matthew S. Gill
- Department of Metabolism & Aging The Scripps Research Institute‐Scripps Florida 130 Scripps Way Jupiter FL 33458
| | - Robert E. Hughes
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
| | - Lindy Holden‐Dye
- Center for Biological Sciences Institute for Life Sciences University of Southampton Southampton UK
| | - Gordon J. Lithgow
- Buck Institute for Research on Aging 8001 Redwood Boulevard Novato CA USA
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50
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Genes Related to Fatty Acid β-Oxidation Play a Role in the Functional Decline of the Drosophila Brain with Age. PLoS One 2016; 11:e0161143. [PMID: 27518101 PMCID: PMC4982618 DOI: 10.1371/journal.pone.0161143] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 08/01/2016] [Indexed: 12/21/2022] Open
Abstract
In living organisms, ageing is widely considered to be the result of a multifaceted process consisting of the progressive accumulation of damage over time, having implications both in terms of function and survival. The study of ageing presents several challenges, from the different mechanisms implicated to the great diversity of systems affected over time. In the current study, we set out to identify genes involved in the functional decline of the brain with age and study its relevance in a tissue dependent manner using Drosophila melanogaster as a model system. Here we report the age-dependent upregulation of genes involved in the metabolic process of fatty acid β-oxidation in the nervous tissue of female wild-type flies. Downregulation of CG10814, dHNF4 and lipid mobilizing genes bmm and dAkh rescues the functional decline of the brain with age, both at the cellular and behaviour level, while over-expression worsens performance. Our data proposes the occurrence of a metabolic alteration in the fly brain with age, whereby the process of β-oxidation of fatty acids experiences a genetic gain-of-function. This event proved to be one of the main causes contributing to the functional decline of the brain with age.
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