1
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Pranoto IKA, Kwon YV. Protocol to analyze Drosophila intestinal tumor cellular heterogeneity using immunofluorescence imaging and nuclear size quantification. STAR Protoc 2024; 5:102946. [PMID: 38470911 PMCID: PMC10945268 DOI: 10.1016/j.xpro.2024.102946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Drosophila intestinal tumors show an extended cellular heterogeneity. We devise a protocol to assess tumor cell heterogeneity by employing nuclear size measurement and immunofluorescence-based cell lineage analysis. We describe steps for intestinal dissection, staining, and imaging, followed by detailed procedures for nuclear size analysis. This approach detects overall heterogeneity across the entire tumor cell population and deviations within specific cell populations. The procedure is also applicable for analyzing the heterogeneity of wild-type intestinal cells in various contexts. For complete details on the use and execution of this protocol, please refer to Pranoto et al.1.
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Affiliation(s)
| | - Young V Kwon
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
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2
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Leung NY, Xu C, Li JSS, Ganguly A, Meyerhof GT, Regimbald-Dumas Y, Lane EA, Breault DT, He X, Perrimon N, Montell C. Gut tumors in flies alter the taste valence of an anti-tumorigenic bitter compound. Curr Biol 2024; 34:2623-2632.e5. [PMID: 38823383 PMCID: PMC11308992 DOI: 10.1016/j.cub.2024.04.082] [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: 08/25/2022] [Revised: 03/28/2024] [Accepted: 04/30/2024] [Indexed: 06/03/2024]
Abstract
The sense of taste is essential for survival, as it allows animals to distinguish between foods that are nutritious from those that are toxic. However, innate responses to different tastants can be modulated or even reversed under pathological conditions. Here, we examined whether and how the internal status of an animal impacts taste valence by using Drosophila models of hyperproliferation in the gut. In all three models where we expressed proliferation-inducing transgenes in intestinal stem cells (ISCs), hyperproliferation of ISCs caused a tumor-like phenotype in the gut. While tumor-bearing flies had no deficiency in overall food intake, strikingly, they exhibited an increased gustatory preference for aristolochic acid (ARI), which is a bitter and normally aversive plant-derived chemical. ARI had anti-tumor effects in all three of our gut hyperproliferation models. For other aversive chemicals we tested that are bitter but do not have anti-tumor effects, gut tumors did not affect avoidance behaviors. We demonstrated that bitter-sensing gustatory receptor neurons (GRNs) in tumor-bearing flies respond normally to ARI. Therefore, the internal pathology of gut hyperproliferation affects neural circuits that determine taste valence postsynaptic to GRNs rather than altering taste identity by GRNs. Overall, our data suggest that increased consumption of ARI may represent an attempt at self-medication. Finally, although ARI's potential use as a chemotherapeutic agent is limited by its known toxicity in the liver and kidney, our findings suggest that tumor-bearing flies might be a useful animal model to screen for novel anti-tumor drugs.
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Affiliation(s)
- Nicole Y Leung
- Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA; Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Chiwei Xu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.
| | - Joshua Shing Shun Li
- Department of Genetics, Blavatnik Institute, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Anindya Ganguly
- Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA; Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Geoff T Meyerhof
- Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA; Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Yannik Regimbald-Dumas
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Elizabeth A Lane
- Department of Genetics, Blavatnik Institute, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - David T Breault
- Division of Endocrinology, Boston Children's Hospital, Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Xi He
- F.M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA; Howard Hughes Medical Institute, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA 02115, USA.
| | - Craig Montell
- Neuroscience Research Institute, University of California, Santa Barbara, CA 93106, USA; Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA.
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3
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Fejzo MS. Hyperemesis gravidarum theories dispelled by recent research: a paradigm change for better care and outcomes. Trends Mol Med 2024; 30:530-540. [PMID: 38782680 DOI: 10.1016/j.molmed.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/27/2024] [Accepted: 04/10/2024] [Indexed: 05/25/2024]
Abstract
Nausea and vomiting (NVP) affect most pregnant women. At the severe end of the clinical spectrum, hyperemesis gravidarum (HG) can be life-threatening. The condition is fraught with misconceptions that have slowed progress and left women undertreated. Herein, recent scientific advances are presented that dispel common myths associated with HG related to maternal/offspring outcomes, etiology, and evolution. There is now strong evidence that (i) HG is associated with poor outcomes, (ii) a common cause of NVP and HG has been identified, and (iii) NVP is likely a protective evolutionary mechanism that occurs throughout the animal kingdom but is no longer necessary for human survival. Therefore, it is encouraging that we are finally on the cusp of testing treatments that may put an end to unnecessary suffering.
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Affiliation(s)
- Marlena Schoenberg Fejzo
- Center for Genetic Epidemiology, Department of Population and Public Health Sciences, University of Southern California Keck School of Medicine, Los Angeles, CA 90033, USA.
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4
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Kurogi Y, Mizuno Y, Kamiyama T, Niwa R. The intestinal stem cell/enteroblast-GAL4 driver, escargot-GAL4, also manipulates gene expression in the juvenile hormone-synthesizing organ of Drosophila melanogaster. Sci Rep 2024; 14:9631. [PMID: 38671036 PMCID: PMC11053112 DOI: 10.1038/s41598-024-60269-2] [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: 01/12/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024] Open
Abstract
Intestinal stem cells (ISCs) of the fruit fly, Drosophila melanogaster, offer an excellent genetic model to explore homeostatic roles of ISCs in animal physiology. Among available genetic tools, the escargot (esg)-GAL4 driver, expressing the yeast transcription factor gene, GAL4, under control of the esg gene promoter, has contributed significantly to ISC studies. This driver facilitates activation of genes of interest in proximity to a GAL4-binding element, Upstream Activating Sequence, in ISCs and progenitor enteroblasts (EBs). While esg-GAL4 has been considered an ISC/EB-specific driver, recent studies have shown that esg-GAL4 is also active in other tissues, such as neurons and ovaries. Therefore, the ISC/EB specificity of esg-GAL4 is questionable. In this study, we reveal esg-GAL4 expression in the corpus allatum (CA), responsible for juvenile hormone (JH) production. When driving the oncogenic gene, RasV12, esg-GAL4 induces overgrowth in ISCs/EBs as reported, but also increases CA cell number and size. Consistent with this observation, animals alter expression of JH-response genes. Our data show that esg-GAL4-driven gene manipulation can systemically influence JH-mediated animal physiology, arguing for cautious use of esg-GAL4 as a "specific" ISC/EB driver to examine ISC/EB-mediated animal physiology.
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Affiliation(s)
- Yoshitomo Kurogi
- Graduate School of Science and Technology, University of Tsukuba, Ibaraki, 305-8577, Japan
| | - Yosuke Mizuno
- Graduate School of Science and Technology, University of Tsukuba, Ibaraki, 305-8577, Japan
| | - Takumi Kamiyama
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Ibaraki, 305-8577, Japan
| | - Ryusuke Niwa
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Ibaraki, 305-8577, Japan.
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5
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Ruan ZR, Yu Z, Xing C, Chen EH. Inter-organ steroid hormone signaling promotes myoblast fusion via direct transcriptional regulation of a single key effector gene. Curr Biol 2024; 34:1438-1452.e6. [PMID: 38513654 PMCID: PMC11003854 DOI: 10.1016/j.cub.2024.02.056] [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: 07/09/2023] [Revised: 12/24/2023] [Accepted: 02/23/2024] [Indexed: 03/23/2024]
Abstract
Steroid hormones regulate tissue development and physiology by modulating the transcription of a broad spectrum of genes. In insects, the principal steroid hormones, ecdysteroids, trigger the expression of thousands of genes through a cascade of transcription factors (TFs) to coordinate developmental transitions such as larval molting and metamorphosis. However, whether ecdysteroid signaling can bypass transcriptional hierarchies to exert its function in individual developmental processes is unclear. Here, we report that a single non-TF effector gene mediates the transcriptional output of ecdysteroid signaling in Drosophila myoblast fusion, a critical step in muscle development and differentiation. Specifically, we show that the 20-hydroxyecdysone (commonly referred to as "ecdysone") secreted from an extraembryonic tissue, amnioserosa, acts on embryonic muscle cells to directly activate the expression of antisocial (ants), which encodes an essential scaffold protein enriched at the fusogenic synapse. Not only is ants transcription directly regulated by the heterodimeric ecdysone receptor complex composed of ecdysone receptor (EcR) and ultraspiracle (USP) via ecdysone-response elements but also more strikingly, expression of ants alone is sufficient to rescue the myoblast fusion defect in ecdysone signaling-deficient mutants. We further show that EcR/USP and a muscle-specific TF Twist synergistically activate ants expression in vitro and in vivo. Taken together, our study provides the first example of a steroid hormone directly activating the expression of a single key non-TF effector gene to regulate a developmental process via inter-organ signaling and provides a new paradigm for understanding steroid hormone signaling in other developmental and physiological processes.
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Affiliation(s)
- Zhi-Rong Ruan
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ze Yu
- McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Chao Xing
- McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Bioinformatics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elizabeth H Chen
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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6
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Zambrano-Tipan D, Narváez-Padilla V, Reynaud E. Escargot a Snail superfamily member and its multiple roles in Drosophila melanogaster development. J Cell Physiol 2024. [PMID: 38572978 DOI: 10.1002/jcp.31269] [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: 12/01/2023] [Revised: 03/21/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
The Snail superfamily of transcription factors plays a crucial role in metazoan development; one of the most important vertebrate members of this family is Snai1 which is orthologous to the Drosophila melanogaster esg gene. This review offers a comprehensive examination of the roles of the esg gene in Drosophila development, covering its expression pattern and downstream targets, and draws parallels between the vertebrate Snai1 family proteins on controlling the epithelial-to-mesenchymal transition and esg. This gene regulates stemness, ploidy, and pluripontency. esg is expressed in various tissues during development, including the gut, imaginal discs, and neuroblasts. The functions of the esg include the suppression of differentiation in intestinal stem cells and the preservation of diploidy in imaginal cells. In the nervous system development, esg expression also inhibits neuroblast differentiation, thus regulating the number of neurons and the moment in development of neuronal differentiation. Loss of esg function results in diverse developmental defects, including defects in intestinal stem cell maintenance and differentiation, and alters imaginal disc and nervous system development. Expression levels of esg also play a role in regulating longevity and metabolism in adult stages. This review provides an overview of the current understanding of esg's developmental role, emphasizing cellular and tissue effects that arise from its loss of function. The insights gained may contribute to a better understanding of evolutionary conserved developmental mechanisms and certain metabolic diseases.
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Affiliation(s)
- Diego Zambrano-Tipan
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Verónica Narváez-Padilla
- Centro de Investigación en Dinámica Celular, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - Enrique Reynaud
- Departamento de Genética del Desarrollo y Fisiología Molecular, Instituto de Biotecnología Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
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7
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Dark C, Ali N, Golenkina S, Dhyani V, Blazev R, Parker BL, Murphy KT, Lynch GS, Senapati T, Millard SS, Judge SM, Judge AR, Giri L, Russell SM, Cheng LY. Mitochondrial fusion and altered beta-oxidation drive muscle wasting in a Drosophila cachexia model. EMBO Rep 2024; 25:1835-1858. [PMID: 38429578 PMCID: PMC11014992 DOI: 10.1038/s44319-024-00102-z] [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: 07/10/2023] [Revised: 01/28/2024] [Accepted: 02/08/2024] [Indexed: 03/03/2024] Open
Abstract
Cancer cachexia is a tumour-induced wasting syndrome, characterised by extreme loss of skeletal muscle. Defective mitochondria can contribute to muscle wasting; however, the underlying mechanisms remain unclear. Using a Drosophila larval model of cancer cachexia, we observed enlarged and dysfunctional muscle mitochondria. Morphological changes were accompanied by upregulation of beta-oxidation proteins and depletion of muscle glycogen and lipid stores. Muscle lipid stores were also decreased in Colon-26 adenocarcinoma mouse muscle samples, and expression of the beta-oxidation gene CPT1A was negatively associated with muscle quality in cachectic patients. Mechanistically, mitochondrial defects result from reduced muscle insulin signalling, downstream of tumour-secreted insulin growth factor binding protein (IGFBP) homologue ImpL2. Strikingly, muscle-specific inhibition of Forkhead box O (FOXO), mitochondrial fusion, or beta-oxidation in tumour-bearing animals preserved muscle integrity. Finally, dietary supplementation with nicotinamide or lipids, improved muscle health in tumour-bearing animals. Overall, our work demonstrates that muscle FOXO, mitochondria dynamics/beta-oxidation and lipid utilisation are key regulators of muscle wasting in cancer cachexia.
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Affiliation(s)
- Callum Dark
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Nashia Ali
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Sofya Golenkina
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Vaibhav Dhyani
- Bioimaging and Data Analysis Lab, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
- Optical Science Centre, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Melbourne, VIC, Australia
| | - Ronnie Blazev
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Benjamin L Parker
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Kate T Murphy
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Tarosi Senapati
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Queensland, QLD, 4072, Australia
| | - S Sean Millard
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Queensland, QLD, 4072, Australia
| | - Sarah M Judge
- Department of Physical Therapy, College of Public Health and Health Professions, University of Florida, Florida, FL, 32603, USA
| | - Andrew R Judge
- Department of Physical Therapy, College of Public Health and Health Professions, University of Florida, Florida, FL, 32603, USA
| | - Lopamudra Giri
- Bioimaging and Data Analysis Lab, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
| | - Sarah M Russell
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Optical Science Centre, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Melbourne, VIC, Australia
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Louise Y Cheng
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
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8
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Khan C, Rusan NM. Using Drosophila to uncover the role of organismal physiology and the tumor microenvironment in cancer. Trends Cancer 2024; 10:289-311. [PMID: 38350736 PMCID: PMC11008779 DOI: 10.1016/j.trecan.2024.01.007] [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: 09/12/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 02/15/2024]
Abstract
Cancer metastasis causes over 90% of cancer patient fatalities. Poor prognosis is determined by tumor type, the tumor microenvironment (TME), organ-specific biology, and animal physiology. While model organisms do not fully mimic the complexity of humans, many processes can be studied efficiently owing to the ease of genetic, developmental, and cell biology studies. For decades, Drosophila has been instrumental in identifying basic mechanisms controlling tumor growth and metastasis. The ability to generate clonal populations of distinct genotypes in otherwise wild-type animals makes Drosophila a powerful system to study tumor-host interactions at the local and global scales. This review discusses advancements in tumor biology, highlighting the strength of Drosophila for modeling TMEs and systemic responses in driving tumor progression and metastasis.
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Affiliation(s)
- Chaitali Khan
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| | - Nasser M Rusan
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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9
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Kwok SH, Liu Y, Bilder D, Kim J. Paraneoplastic renal dysfunction in fly cancer models driven by inflammatory activation of stem cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.21.586173. [PMID: 38585959 PMCID: PMC10996499 DOI: 10.1101/2024.03.21.586173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Tumors can induce systemic disturbances in distant organs, leading to physiological changes that enhance host morbidity. In Drosophila cancer models, tumors have been known for decades to cause hypervolemic 'bloating' of the abdominal cavity. Here we use allograft and transgenic tumors to show that hosts display fluid retention associated with autonomously defective secretory capacity of fly renal tubules, which function analogous to those of the human kidney. Excretion from these organs is blocked by abnormal cells that originate from inappropriate activation of normally quiescent renal stem cells (RSCs). Blockage is initiated by IL-6-like oncokines that perturb renal water-transporting cells, and trigger a damage response in RSCs that proceeds pathologically. Thus, a chronic inflammatory state produced by the tumor causes paraneoplastic fluid dysregulation by altering cellular homeostasis of host renal units.
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Affiliation(s)
- Sze Hang Kwok
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Yuejiang Liu
- Department of Molecular and Cell Biology, University of California-Berkeley, Berkeley CA, 94720, USA
| | - David Bilder
- Department of Molecular and Cell Biology, University of California-Berkeley, Berkeley CA, 94720, USA
| | - Jung Kim
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Department of Molecular and Cell Biology, University of California-Berkeley, Berkeley CA, 94720, USA
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10
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Nakamura Y, Saldajeno DP, Kawaguchi K, Kawaoka S. Progressive, multi-organ, and multi-layered nature of cancer cachexia. Cancer Sci 2024; 115:715-722. [PMID: 38254286 PMCID: PMC10921013 DOI: 10.1111/cas.16078] [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: 10/27/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Cancer cachexia is a complex, multifaceted condition that negatively impacts the health, treatment efficacy, and economic status of cancer patients. The management of cancer cachexia is an essential clinical need. Cancer cachexia is currently defined mainly according to the severity of weight loss and sarcopenia (i.e., macrosymptoms). However, such macrosymptoms may be insufficient to give clinicians clues on how to manage this condition as these symptoms appear at the late stage of cancer. We need to understand earlier events during the progression of cancer cachexia so as not to miss a clinical opportunity to control this complex syndrome. Recent research indicates that cancer-induced changes in the host are much wider than previously recognized, including disruption of liver function and the immune system. Furthermore, such changes are observed before the occurrence of visible distant metastases (i.e., in early, localized cancers). In light of these findings, we propose to expand the definition of cancer cachexia to include all cancer-induced changes to host physiology, including changes caused by early, localized cancers. This new definition of cancer cachexia can provide a new perspective on this topic, which can stimulate the research and development of novel cancer cachexia therapies.
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Affiliation(s)
- Yuki Nakamura
- Inter‐Organ Communication Research TeamInstitute for Life and Medical SciencesKyotoJapan
- Department of Breast SurgeryKyoto University Graduate School of MedicineKyotoJapan
| | - Don Pietro Saldajeno
- Inter‐Organ Communication Research TeamInstitute for Life and Medical SciencesKyotoJapan
- Mathematical Informatics Laboratory, Division of Information ScienceNara Institute of Science and TechnologyIkomaNaraJapan
| | - Kosuke Kawaguchi
- Department of Breast SurgeryKyoto University Graduate School of MedicineKyotoJapan
| | - Shinpei Kawaoka
- Inter‐Organ Communication Research TeamInstitute for Life and Medical SciencesKyotoJapan
- Department of Integrative Bioanalytics, Institute of Development, Aging and Cancer (IDAC)Tohoku UniversitySendaiJapan
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11
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Xu J, Liu Y, Yang F, Cao Y, Chen W, Li JSS, Zhang S, Comjean A, Hu Y, Perrimon N. Mechanistic characterization of a Drosophila model of paraneoplastic nephrotic syndrome. Nat Commun 2024; 15:1241. [PMID: 38336808 PMCID: PMC10858251 DOI: 10.1038/s41467-024-45493-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Paraneoplastic syndromes occur in cancer patients and originate from dysfunction of organs at a distance from the tumor or its metastasis. A wide range of organs can be affected in paraneoplastic syndromes; however, the pathological mechanisms by which tumors influence host organs are poorly understood. Recent studies in the fly uncovered that tumor secreted factors target host organs, leading to pathological effects. In this study, using a Drosophila gut tumor model, we characterize a mechanism of tumor-induced kidney dysfunction. Specifically, we find that Pvf1, a PDGF/VEGF signaling ligand, secreted by gut tumors activates the PvR/JNK/Jra signaling pathway in the principal cells of the kidney, leading to mis-expression of renal genes and paraneoplastic renal syndrome-like phenotypes. Our study describes an important mechanism by which gut tumors perturb the function of the kidney, which might be of clinical relevance for the treatment of paraneoplastic syndromes.
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Affiliation(s)
- Jun Xu
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
| | - Ying Liu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
| | - Fangying Yang
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Yurou Cao
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Weihang Chen
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Joshua Shing Shun Li
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Shuai Zhang
- CAS Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Aram Comjean
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Yanhui Hu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
- Howard Hughes Medical Institute, Boston, MA, USA.
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12
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Yun HM, Hyun B, Song X, Hyun S. Piwi expressed in Drosophila adipose tissues regulates systemic IGF signaling and growth via IGF-binding protein. Biochem Biophys Res Commun 2024; 695:149495. [PMID: 38211532 DOI: 10.1016/j.bbrc.2024.149495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 01/07/2024] [Indexed: 01/13/2024]
Abstract
Piwi and its partner, Piwi-interacting RNA (piRNA), are pivotal in suppressing the harmful effects of transposable elements (TEs) linked to genomic insertional mutagenesis. While primarily active in Drosophila's adult gonadal tissues, causing sterility in its absence, Piwi's role in post-embryonic development remains unclear. Our study reveals Piwi's functional presence in the larval fat body, where it governs developmental growth through systemic insulin/insulin-like growth factor (IGF) signaling (IIS). Piwi knockdown in the fat body resulted in dysregulated TE expression, reduced developmental rate and body growth, and diminished systemic IIS activity. Notably, Piwi knockdown increased Imaginal Morphogenic Protein Late 2 (Imp-L2) expression, akin to insulin-like growth factor-binding protein 7 (IGFBP7), reducing systemic IIS and inhibiting body growth. This unveils a novel role for Piwi in larval adipose tissues, emphasizing its importance in regulating systemic IIS and overall organismal growth.
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Affiliation(s)
- Hyun Myoung Yun
- Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Bom Hyun
- Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Xinge Song
- Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Seogang Hyun
- Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
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13
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Wang ZY. Octopus death and dying. Integr Comp Biol 2023; 63:1209-1213. [PMID: 37437909 DOI: 10.1093/icb/icad098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 05/18/2023] [Accepted: 07/03/2023] [Indexed: 07/14/2023] Open
Affiliation(s)
- Z Yan Wang
- Department of Psychology, University of Washington, Seattle, WA 98195, USA
- Department of Biology, University of Washington, Seattle, WA 98195, USA
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14
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Bakopoulos D, Golenkina S, Dark C, Christie EL, Sánchez-Sánchez BJ, Stramer BM, Cheng LY. Convergent insulin and TGF-β signalling drives cancer cachexia by promoting aberrant fat body ECM accumulation in a Drosophila tumour model. EMBO Rep 2023; 24:e57695. [PMID: 38014610 DOI: 10.15252/embr.202357695] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/16/2023] [Accepted: 10/26/2023] [Indexed: 11/29/2023] Open
Abstract
In this study, we found that in the adipose tissue of wildtype animals, insulin and TGF-β signalling converge via a BMP antagonist short gastrulation (sog) to regulate ECM remodelling. In tumour bearing animals, Sog also modulates TGF-β signalling to regulate ECM accumulation in the fat body. TGF-β signalling causes ECM retention in the fat body and subsequently depletes muscles of fat body-derived ECM proteins. Activation of insulin signalling, inhibition of TGF-β signalling, or modulation of ECM levels via SPARC, Rab10 or Collagen IV in the fat body, is able to rescue tissue wasting in the presence of tumour. Together, our study highlights the importance of adipose ECM remodelling in the context of cancer cachexia.
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Affiliation(s)
- Daniel Bakopoulos
- Peter MacCallum Cancer Centre, Melbourne, Vic, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic, Australia
| | | | - Callum Dark
- Peter MacCallum Cancer Centre, Melbourne, Vic, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic, Australia
| | - Elizabeth L Christie
- Peter MacCallum Cancer Centre, Melbourne, Vic, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic, Australia
| | | | - Brian M Stramer
- Kings College London, Randall Centre for Cell & Molecular Biophysics, London, UK
| | - Louise Y Cheng
- Peter MacCallum Cancer Centre, Melbourne, Vic, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Vic, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Vic, Australia
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15
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Krejčová G, Morgantini C, Zemanová H, Lauschke VM, Kovářová J, Kubásek J, Nedbalová P, Kamps‐Hughes N, Moos M, Aouadi M, Doležal T, Bajgar A. Macrophage-derived insulin antagonist ImpL2 induces lipoprotein mobilization upon bacterial infection. EMBO J 2023; 42:e114086. [PMID: 37807855 PMCID: PMC10690471 DOI: 10.15252/embj.2023114086] [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: 03/22/2023] [Revised: 09/06/2023] [Accepted: 09/12/2023] [Indexed: 10/10/2023] Open
Abstract
The immune response is an energy-demanding process that must be coordinated with systemic metabolic changes redirecting nutrients from stores to the immune system. Although this interplay is fundamental for the function of the immune system, the underlying mechanisms remain elusive. Our data show that the pro-inflammatory polarization of Drosophila macrophages is coupled to the production of the insulin antagonist ImpL2 through the activity of the transcription factor HIF1α. ImpL2 production, reflecting nutritional demands of activated macrophages, subsequently impairs insulin signaling in the fat body, thereby triggering FOXO-driven mobilization of lipoproteins. This metabolic adaptation is fundamental for the function of the immune system and an individual's resistance to infection. We demonstrated that analogically to Drosophila, mammalian immune-activated macrophages produce ImpL2 homolog IGFBP7 in a HIF1α-dependent manner and that enhanced IGFBP7 production by these cells induces mobilization of lipoproteins from hepatocytes. Hence, the production of ImpL2/IGFBP7 by macrophages represents an evolutionarily conserved mechanism by which macrophages alleviate insulin signaling in the central metabolic organ to secure nutrients necessary for their function upon bacterial infection.
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Affiliation(s)
- Gabriela Krejčová
- Department of Molecular Biology and Genetics, Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic
| | - Cecilia Morgantini
- Department of Medicine, Integrated Cardio Metabolic Center (ICMC)Karolinska InstitutetHuddingeSweden
| | - Helena Zemanová
- Department of Molecular Biology and Genetics, Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic
| | - Volker M Lauschke
- Department of Medicine, Integrated Cardio Metabolic Center (ICMC)Karolinska InstitutetHuddingeSweden
- Dr Margarete Fischer‐Bosch Institute of Clinical PharmacologyStuttgartGermany
- University of TübingenTübingenGermany
| | - Julie Kovářová
- Biology Centre CASInstitute of ParasitologyCeske BudejoviceCzech Republic
| | - Jiří Kubásek
- Department of Experimental Plant Biology, Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic
| | - Pavla Nedbalová
- Department of Molecular Biology and Genetics, Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic
| | | | - Martin Moos
- Institute of EntomologyBiology Centre CASCeske BudejoviceCzech Republic
| | - Myriam Aouadi
- Department of Medicine, Integrated Cardio Metabolic Center (ICMC)Karolinska InstitutetHuddingeSweden
| | - Tomáš Doležal
- Department of Molecular Biology and Genetics, Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic
| | - Adam Bajgar
- Department of Molecular Biology and Genetics, Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic
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16
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Xu W, Li G, Chen Y, Ye X, Song W. A novel antidiuretic hormone governs tumour-induced renal dysfunction. Nature 2023; 624:425-432. [PMID: 38057665 DOI: 10.1038/s41586-023-06833-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 11/03/2023] [Indexed: 12/08/2023]
Abstract
Maintenance of renal function and fluid transport are essential for vertebrates and invertebrates to adapt to physiological and pathological challenges. Human patients with malignant tumours frequently develop detrimental renal dysfunction and oliguria, and previous studies suggest the involvement of chemotherapeutic toxicity and tumour-associated inflammation1,2. However, how tumours might directly modulate renal functions remains largely unclear. Here, using conserved tumour models in Drosophila melanogaster3, we characterized isoform F of ion transport peptide (ITPF) as a fly antidiuretic hormone that is secreted by a subset of yki3SA gut tumour cells, impairs renal function and causes severe abdomen bloating and fluid accumulation. Mechanistically, tumour-derived ITPF targets the G-protein-coupled receptor TkR99D in stellate cells of Malpighian tubules-an excretory organ that is equivalent to renal tubules4-to activate nitric oxide synthase-cGMP signalling and inhibit fluid excretion. We further uncovered antidiuretic functions of mammalian neurokinin 3 receptor (NK3R), the homologue of fly TkR99D, as pharmaceutical blockade of NK3R efficiently alleviates renal tubular dysfunction in mice bearing different malignant tumours. Together, our results demonstrate a novel antidiuretic pathway mediating tumour-renal crosstalk across species and offer therapeutic opportunities for the treatment of cancer-associated renal dysfunction.
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Affiliation(s)
- Wenhao Xu
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, Hubei, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Gerui Li
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, Hubei, China
| | - Yuan Chen
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, Hubei, China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xujun Ye
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, Hubei, China.
| | - Wei Song
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Wuhan University, Wuhan, Hubei, China.
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China.
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17
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Gumeni S, Lamprou M, Evangelakou Z, Manola MS, Trougakos IP. Sustained Nrf2 Overexpression-Induced Metabolic Deregulation Can Be Attenuated by Modulating Insulin/Insulin-like Growth Factor Signaling. Cells 2023; 12:2650. [PMID: 37998385 PMCID: PMC10670064 DOI: 10.3390/cells12222650] [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: 10/10/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023] Open
Abstract
The modulation of insulin/insulin-like growth factor signaling (IIS) is associated with altered nutritional and metabolic states. The Drosophila genome encodes eight insulin-like peptides, whose activity is regulated by a group of secreted factors, including Ecdysone-inducible gene L2 (ImpL2), which acts as a potent IIS inhibitor. We recently reported that cncC (cncC/Nrf2), the fly ortholog of Nrf2, is a positive transcriptional regulator of ImpL2, as part of a negative feedback loop aiming to suppress cncC/Nrf2 activity. This finding correlated with our observation that sustained cncC/Nrf2 overexpression/activation (cncCOE; a condition that signals organismal stress) deregulates IIS, causing hyperglycemia, the exhaustion of energy stores in flies' tissues, and accelerated aging. Here, we extend these studies in Drosophila by assaying the functional implication of ImpL2 in cncCOE-mediated metabolic deregulation. We found that ImpL2 knockdown (KD) in cncCOE flies partially reactivated IIS, attenuated hyperglycemia and restored tissue energetics. Moreover, ImpL2 KD largely suppressed cncCOE-mediated premature aging. In support, pharmacological treatment of cncCOE flies with Metformin, a first-line medication for type 2 diabetes, restored (dose-dependently) IIS functionality and extended cncCOE flies' longevity. These findings exemplify the effect of chronic stress in predisposition to diabetic phenotypes, indicating the potential prophylactic role of maintaining normal IIS functionality.
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Affiliation(s)
| | | | | | | | - Ioannis P. Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, 15784 Athens, Greece; (S.G.); (M.L.); (Z.E.); (M.S.M.)
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18
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Bertrand M, Szeremeta F, Hervouet-Coste N, Sarou-Kanian V, Landon C, Morisset-Lopez S, Decoville M. An adult Drosophila glioma model to highlight metabolic dysfunctions and evaluate the role of the serotonin 5-HT 7 receptor as a potential therapeutic target. FASEB J 2023; 37:e23230. [PMID: 37781977 DOI: 10.1096/fj.202300783rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 08/31/2023] [Accepted: 09/18/2023] [Indexed: 10/03/2023]
Abstract
Gliomas account for 50% of brain cancers and are therefore the most common brain tumors. Molecular alterations involved in adult gliomas have been identified and mainly affect tyrosine kinase receptors with amplification and/or mutation of the epidermal growth factor receptor (EGFR) and its associated signaling pathways. Several targeted therapies have been developed, but current treatments remain ineffective for glioblastomas, the most severe forms. Thus, it is a priority to identify new pharmacological targets. Drosophila glioma models established in larvae and adults are useful to identify new genes and signaling pathways involved in glioma progression. Here, we used a Drosophila glioma model in adults, to characterize metabolic disturbances associated with glioma and assess the consequences of 5-HT7 R expression on glioma development. First, by using in vivo magnetic resonance imaging, we have shown that expression of the constitutively active forms of EGFR and PI3K in adult glial cells induces brain enlargement. Then, we explored altered cellular metabolism by using high-resolution magic angle spinning NMR and 1 H-13 C heteronuclear single quantum coherence solution states. Discriminant metabolites identified highlight the rewiring of metabolic pathways in glioma and associated cachexia phenotypes. Finally, the expression of 5-HT7 R in this adult model attenuates phenotypes associated with glioma development. Collectively, this whole-animal approach in Drosophila allowed us to provide several rapid and robust phenotype readouts, such as enlarged brain volume and glioma-associated cachexia, as well as to determine the metabolic pathways involved in glioma genesis and finally to confirm the interest of the 5-HT7 R in the treatment of glioma.
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Affiliation(s)
- Marylène Bertrand
- Centre de Biophysique Moléculaire-CBM, UPR 4301, CNRS, Orléans, France
| | | | | | - Vincent Sarou-Kanian
- Conditions Extrêmes et Matériaux: Haute Température et Irradiation-CEMHTI-CNRS UPR 3079, Orléans, France
| | - Céline Landon
- Centre de Biophysique Moléculaire-CBM, UPR 4301, CNRS, Orléans, France
| | | | - Martine Decoville
- Centre de Biophysique Moléculaire-CBM, UPR 4301, CNRS, Orléans, France
- UFR Sciences et Techniques, Université d'Orléans, Orléans, France
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19
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Taylor J, Uhl L, Moll I, Hasan SS, Wiedmann L, Morgenstern J, Giaimo BD, Friedrich T, Alsina-Sanchis E, De Angelis Rigotti F, Mülfarth R, Kaltenbach S, Schenk D, Nickel F, Fleming T, Sprinzak D, Mogler C, Korff T, Billeter AT, Müller-Stich BP, Berriel Diaz M, Borggrefe T, Herzig S, Rohm M, Rodriguez-Vita J, Fischer A. Endothelial Notch1 signaling in white adipose tissue promotes cancer cachexia. NATURE CANCER 2023; 4:1544-1560. [PMID: 37749321 PMCID: PMC10663158 DOI: 10.1038/s43018-023-00622-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/20/2023] [Indexed: 09/27/2023]
Abstract
Cachexia is a major cause of morbidity and mortality in individuals with cancer and is characterized by weight loss due to adipose and muscle tissue wasting. Hallmarks of white adipose tissue (WAT) remodeling, which often precedes weight loss, are impaired lipid storage, inflammation and eventually fibrosis. Tissue wasting occurs in response to tumor-secreted factors. Considering that the continuous endothelium in WAT is the first line of contact with circulating factors, we postulated whether the endothelium itself may orchestrate tissue remodeling. Here, we show using human and mouse cancer models that during precachexia, tumors overactivate Notch1 signaling in distant WAT endothelium. Sustained endothelial Notch1 signaling induces a WAT wasting phenotype in male mice through excessive retinoic acid production. Pharmacological blockade of retinoic acid signaling was sufficient to inhibit WAT wasting in a mouse cancer cachexia model. This demonstrates that cancer manipulates the endothelium at distant sites to mediate WAT wasting by altering angiocrine signals.
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Affiliation(s)
- Jacqueline Taylor
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Leonie Uhl
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Theodor Boveri Institute, Department of Biochemistry and Molecular Biology, Biocenter, University of Würzburg, Würzburg, Germany
| | - Iris Moll
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sana Safatul Hasan
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Lena Wiedmann
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jakob Morgenstern
- Department of Internal Medicine Endocrinology and Clinical Chemistry, University of Heidelberg, Heidelberg, Germany
| | | | - Tobias Friedrich
- Institute of Biochemistry, University of Giessen, Giessen, Germany
- Biomedical Informatics and Systems Medicine, Science Unit for Basic and Clinical Medicine, Giessen, Germany
| | - Elisenda Alsina-Sanchis
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Francesca De Angelis Rigotti
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Tumor-Stroma Communication Laboratory, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Ronja Mülfarth
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sarah Kaltenbach
- Department of Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
| | - Darius Schenk
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Felix Nickel
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Thomas Fleming
- Department of Internal Medicine Endocrinology and Clinical Chemistry, University of Heidelberg, Heidelberg, Germany
- German Center of Diabetes Research (DZD), Neuherberg, Germany
| | - David Sprinzak
- School of Neurobiology, Biochemistry and Biophysics, George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Carolin Mogler
- Institute of Pathology, Technical University of Munich School of Medicine, Technical University of Munich, Munich, Germany
| | - Thomas Korff
- Institute of Physiology and Pathophysiology, Department of Cardiovascular Physiology, University of Heidelberg, Heidelberg, Germany
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Adrian T Billeter
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Beat P Müller-Stich
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
| | - Mauricio Berriel Diaz
- Institute for Diabetes and Cancer, Helmholtz Center Munich, German Center for Diabetes Research (DZD), Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Unit, Department of Inner Medicine I, Heidelberg University Hospital, Heidelberg, Germany
| | - Tilman Borggrefe
- Institute of Biochemistry, University of Giessen, Giessen, Germany
| | - Stephan Herzig
- Institute for Diabetes and Cancer, Helmholtz Center Munich, German Center for Diabetes Research (DZD), Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Unit, Department of Inner Medicine I, Heidelberg University Hospital, Heidelberg, Germany
- Chair Molecular Metabolic Control, Technical University of Munich, Munich, Germany
| | - Maria Rohm
- Institute for Diabetes and Cancer, Helmholtz Center Munich, German Center for Diabetes Research (DZD), Neuherberg, Germany
- Joint Heidelberg-IDC Translational Diabetes Unit, Department of Inner Medicine I, Heidelberg University Hospital, Heidelberg, Germany
| | - Juan Rodriguez-Vita
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Tumor-Stroma Communication Laboratory, Centro de Investigación Príncipe Felipe, Valencia, Spain.
| | - Andreas Fischer
- Division Vascular Signaling and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany.
- Department of Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany.
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Göttingen, Germany.
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20
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Pranoto IKA, Lee J, Kwon YV. The roles of the native cell differentiation program aberrantly recapitulated in Drosophila intestinal tumors. Cell Rep 2023; 42:113245. [PMID: 37837622 PMCID: PMC10872463 DOI: 10.1016/j.celrep.2023.113245] [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: 06/15/2022] [Revised: 06/11/2023] [Accepted: 09/26/2023] [Indexed: 10/16/2023] Open
Abstract
Many tumors recapitulate the developmental and differentiation program of their tissue of origin, a basis for tumor cell heterogeneity. Although stem-cell-like tumor cells are well studied, the roles of tumor cells undergoing differentiation remain to be elucidated. We employ Drosophila genetics to demonstrate that the differentiation program of intestinal stem cells is crucial for enabling intestinal tumors to invade and induce non-tumor-autonomous phenotypes. The differentiation program that generates absorptive cells is aberrantly recapitulated in the intestinal tumors generated by activation of the Yap1 ortholog Yorkie. Inhibiting it allows stem-cell-like tumor cells to grow but suppresses invasiveness and reshapes various phenotypes associated with cachexia-like wasting by altering the expression of tumor-derived factors. Our study provides insight into how a native differentiation program determines a tumor's capacity to induce advanced cancer phenotypes and suggests that manipulating the differentiation programs co-opted in tumors might alleviate complications of cancer, including cachexia.
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Affiliation(s)
| | - Jiae Lee
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Young V Kwon
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
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21
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Yu K, Ramkumar N, Wong KKL, Tettweiler G, Verheyen EM. The AMPK-like protein kinases Sik2 and Sik3 interact with Hipk and induce synergistic tumorigenesis in a Drosophila cancer model. Front Cell Dev Biol 2023; 11:1214539. [PMID: 37854071 PMCID: PMC10579798 DOI: 10.3389/fcell.2023.1214539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 09/21/2023] [Indexed: 10/20/2023] Open
Abstract
Homeodomain-interacting protein kinases (Hipks) regulate cell proliferation, apoptosis, and tissue development. Overexpression of Hipk in Drosophila causes tumorigenic phenotypes in larval imaginal discs. We find that depletion of Salt-inducible kinases Sik2 or Sik3 can suppress Hipk-induced overgrowth. Furthermore, co-expression of constitutively active forms of Sik2 or Sik3 with Hipk caused significant tissue hyperplasia and tissue distortion, indicating that both Sik2 and Sik3 can synergize with Hipk to promote tumorous phenotypes, accompanied by elevated dMyc, Armadillo/β-catenin, and the Yorkie target gene expanded. Larvae expressing these hyperplastic growths also display an extended larval phase, characteristic of other Drosophila tumour models. Examination of total protein levels from fly tissues showed that Hipk proteins were reduced when Siks were depleted through RNAi, suggesting that Siks may regulate Hipk protein stability and/or activity. Conversely, expression of constitutively active Siks with Hipk leads to increased Hipk protein levels. Furthermore, Hipk can interact with Sik2 and Sik3 by co-immunoprecipitation. Co-expression of both proteins leads to a mobility shift of Hipk protein, suggesting it is post-translationally modified. In summary, our research demonstrates a novel function of Siks in synergizing with Hipk to promote tumour growth.
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Affiliation(s)
- Kewei Yu
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
| | - Niveditha Ramkumar
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
| | - Kenneth Kin Lam Wong
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
| | - Gritta Tettweiler
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
| | - Esther M. Verheyen
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Centre for Cell Biology, Development and Disease, Simon Fraser University, Burnaby, BC, Canada
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22
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Saavedra P, Dumesic PA, Hu Y, Filine E, Jouandin P, Binari R, Wilensky SE, Rodiger J, Wang H, Chen W, Liu Y, Spiegelman BM, Perrimon N. REPTOR and CREBRF encode key regulators of muscle energy metabolism. Nat Commun 2023; 14:4943. [PMID: 37582831 PMCID: PMC10427696 DOI: 10.1038/s41467-023-40595-1] [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: 03/03/2022] [Accepted: 08/03/2023] [Indexed: 08/17/2023] Open
Abstract
Metabolic flexibility of muscle tissue describes the adaptive capacity to use different energy substrates according to their availability. The disruption of this ability associates with metabolic disease. Here, using a Drosophila model of systemic metabolic dysfunction triggered by yorkie-induced gut tumors, we show that the transcription factor REPTOR is an important regulator of energy metabolism in muscles. We present evidence that REPTOR is activated in muscles of adult flies with gut yorkie-tumors, where it modulates glucose metabolism. Further, in vivo studies indicate that sustained activity of REPTOR is sufficient in wildtype muscles to repress glycolysis and increase tricarboxylic acid (TCA) cycle metabolites. Consistent with the fly studies, higher levels of CREBRF, the mammalian ortholog of REPTOR, reduce glycolysis in mouse myotubes while promoting oxidative metabolism. Altogether, our results define a conserved function for REPTOR and CREBRF as key regulators of muscle energy metabolism.
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Affiliation(s)
- Pedro Saavedra
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
| | - Phillip A Dumesic
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Yanhui Hu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Elizabeth Filine
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Patrick Jouandin
- Institut de Recherche en Cancérologie de Montpellier, INSERM, Montpellier, France
| | - Richard Binari
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
- Howard Hughes Medical Institute, Boston, MA, 02115, USA
| | - Sarah E Wilensky
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
| | - Jonathan Rodiger
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Haiyun Wang
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Weihang Chen
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Ying Liu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Bruce M Spiegelman
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, 02115, USA
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA, 02115, USA.
- Howard Hughes Medical Institute, Boston, MA, 02115, USA.
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23
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Hsi TC, Ong KL, Sepers JJ, Kim J, Bilder D. Systemic coagulopathy promotes host lethality in a new Drosophila tumor model. Curr Biol 2023; 33:3002-3010.e6. [PMID: 37354901 DOI: 10.1016/j.cub.2023.05.071] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 04/12/2023] [Accepted: 05/31/2023] [Indexed: 06/26/2023]
Abstract
Malignant tumors trigger a complex network of inflammatory and wound repair responses, prompting Dvorak's characterization of tumors as "wounds that never heal."1 Some of these responses lead to profound defects in blood clotting, such as disseminated intravascular coagulopathy (DIC), which correlate with poor prognoses.2,3,4 Here, we demonstrate that a new tumor model in Drosophila provokes phenotypes that resemble coagulopathies observed in patients. Fly ovarian tumors overproduce multiple secreted components of the clotting cascade and trigger hypercoagulation of fly blood (hemolymph). Hypercoagulation occurs shortly after tumor induction and is transient; it is followed by a hypocoagulative state that is defective in wound healing. Cellular clotting regulators accumulate on the tumor over time and are depleted from the body, suggesting that hypocoagulation is caused by exhaustion of host clotting components. We show that rescuing coagulopathy by depleting a tumor-produced clotting factor improves survival of tumor-bearing flies, despite the fact that flies have an open (non-vascular) circulatory system. As clinical studies suggest that lethality in patients with high serum levels of clotting components can be independent of thrombotic events,5,6 our work establishes a platform for identifying alternative mechanisms by which tumor-driven coagulopathy triggers early mortality. Moreover, it opens up exploration of other conserved mechanisms of host responses to chronic wounds.
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Affiliation(s)
- Tsai-Ching Hsi
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA 94720, USA
| | - Katy L Ong
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA 94720, USA
| | - Jorian J Sepers
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA 94720, USA
| | - Jung Kim
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA 94720, USA
| | - David Bilder
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA 94720, USA.
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24
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Li Y, Wang J, Xu Y, Meng Q, Wu M, Su Y, Miao Y, Wang Y. The water extract of Potentilla discolor Bunge (PDW) ameliorates high-sugar diet-induced type II diabetes model in Drosophila melanogaster via JAK/STAT signaling. JOURNAL OF ETHNOPHARMACOLOGY 2023:116760. [PMID: 37301307 DOI: 10.1016/j.jep.2023.116760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 06/04/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Potentilla discolor Bunge (PD) is a member of the Rosaceae family. It has been traditionally used in folk medicine for the treatment of diabetes. Additionally, people in folk also eat fresh and tender PD stems as vegetables or brew them as tea. AIM OF THE STUDY The aim of this study was to explore the antidiabetic effects and underlying mechanisms of the water extract of Potentilla discolor (PDW) in a fruit fly model of high-sugar diet-induced type 2 diabetes. MATERIALS AND METHODS The antidiabetic efficacy of PDW was evaluated in a fruit fly model of diabetes induced by a high-sugar diet (HSD). Various physiological parameters were tested to evaluate the anti-diabetic effect of PDW. Gene expression levels related to insulin signaling pathways, glucose metabolism, lipid metabolism, and JAK/STAT signaling pathways were primarily analyzed using RT-qPCR to investigate the therapeutic mechanisms. RESULTS In this study, we found that the water extract of Potentilla discolor (PDW) can ameliorate type II diabetes phenotypes induced by the HSD in fruit flies. These phenotypes include growth rate, body size, hyperglycemia, glycogen metabolism, fat storage, and intestinal microflora homeostasis. PDW also improved the body size of s6k and rheb knockdown flies, suggesting its potential to activate the downstream insulin pathway and alleviate insulin resistance. Furthermore, we demonstrated that PDW reduced the expression of two target genes of the JAK/STAT signaling pathway, namely the insulin antagonist Impl2 and insulin receptor inhibitor Socs36E, which act as regulators inhibiting the activation of the insulin signaling pathway. CONCLUSIONS This study provides evidence for the anti-diabetic activity of PDW and suggests that its underlying mechanism may involve the improvement of insulin resistance by inhibiting the JAK/STAT signaling pathway.
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Affiliation(s)
- Ying Li
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Junlin Wang
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Yidong Xu
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Qinghao Meng
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Mengdi Wu
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Yanfang Su
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China.
| | - Yaodong Miao
- Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, 300250, Tianjin, China.
| | - Yiwen Wang
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China.
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25
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Li Y, Zhou X, Cheng C, Ding G, Zhao P, Tan K, Chen L, Perrimon N, Veenstra JA, Zhang L, Song W. Gut AstA mediates sleep deprivation-induced energy wasting in Drosophila. Cell Discov 2023; 9:49. [PMID: 37221172 DOI: 10.1038/s41421-023-00541-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 03/13/2023] [Indexed: 05/25/2023] Open
Abstract
Severe sleep deprivation (SD) has been highly associated with systemic energy wasting, such as lipid loss and glycogen depletion. Despite immune dysregulation and neurotoxicity observed in SD animals, whether and how the gut-secreted hormones participate in SD-induced disruption of energy homeostasis remains largely unknown. Using Drosophila as a conserved model organism, we characterize that production of intestinal Allatostatin A (AstA), a major gut-peptide hormone, is robustly increased in adult flies bearing severe SD. Interestingly, the removal of AstA production in the gut using specific drivers significantly improves lipid loss and glycogen depletion in SD flies without affecting sleep homeostasis. We reveal the molecular mechanisms whereby gut AstA promotes the release of an adipokinetic hormone (Akh), an insulin counter-regulatory hormone functionally equivalent to mammalian glucagon, to mobilize systemic energy reserves by remotely targeting its receptor AstA-R2 in Akh-producing cells. Similar regulation of glucagon secretion and energy wasting by AstA/galanin is also observed in SD mice. Further, integrating single-cell RNA sequencing and genetic validation, we uncover that severe SD results in ROS accumulation in the gut to augment AstA production via TrpA1. Altogether, our results demonstrate the essential roles of the gut-peptide hormone AstA in mediating SD-associated energy wasting.
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Affiliation(s)
- Yingge Li
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Xiaoya Zhou
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Chen Cheng
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Guangming Ding
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Peng Zhao
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China
| | - Kai Tan
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Lixia Chen
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Norbert Perrimon
- Department of Genetics, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Jan A Veenstra
- INCIA, UMR 5287 CNRS, University of Bordeaux, Talence, France
| | - Luoying Zhang
- Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Bioinformatics and Molecular Imaging Key Laboratory, Center for Artificial Intelligence Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Song
- Department of Hepatobiliary and Pancreatic Surgery, Medical Research Institute, Frontier Science Center of Immunology and Metabolism, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China.
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei, China.
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26
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Liu Y, Dantas E, Ferrer M, Liu Y, Comjean A, Davidson EE, Hu Y, Goncalves MD, Janowitz T, Perrimon N. Tumor Cytokine-Induced Hepatic Gluconeogenesis Contributes to Cancer Cachexia: Insights from Full Body Single Nuclei Sequencing. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.15.540823. [PMID: 37292804 PMCID: PMC10245574 DOI: 10.1101/2023.05.15.540823] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A primary cause of death in cancer patients is cachexia, a wasting syndrome attributed to tumor-induced metabolic dysregulation. Despite the major impact of cachexia on the treatment, quality of life, and survival of cancer patients, relatively little is known about the underlying pathogenic mechanisms. Hyperglycemia detected in glucose tolerance test is one of the earliest metabolic abnormalities observed in cancer patients; however, the pathogenesis by which tumors influence blood sugar levels remains poorly understood. Here, utilizing a Drosophila model, we demonstrate that the tumor secreted interleukin-like cytokine Upd3 induces fat body expression of Pepck1 and Pdk, two key regulatory enzymes of gluconeogenesis, contributing to hyperglycemia. Our data further indicate a conserved regulation of these genes by IL-6/JAK-STAT signaling in mouse models. Importantly, in both fly and mouse cancer cachexia models, elevated gluconeogenesis gene levels are associated with poor prognosis. Altogether, our study uncovers a conserved role of Upd3/IL-6/JAK-STAT signaling in inducing tumor-associated hyperglycemia, which provides insights into the pathogenesis of IL-6 signaling in cancer cachexia.
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Affiliation(s)
- Ying Liu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Ezequiel Dantas
- Division of Endocrinology, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Miriam Ferrer
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY 11724 USA
| | - Yifang Liu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Aram Comjean
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Emma E. Davidson
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY 11724 USA
| | - Yanhui Hu
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
| | - Marcus D. Goncalves
- Division of Endocrinology, Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, NY 10065, USA
| | - Tobias Janowitz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, NY 11724 USA
- Northwell Health Cancer Institute, Northwell Health, New Hyde Park, New York, NY 11042 USA
| | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Harvard University, Boston, MA 02115, USA
- Howard Hughes Medical Institute, Boston, MA, USA
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27
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Okada M, Takano T, Ikegawa Y, Ciesielski H, Nishida H, Yoo SK. Oncogenic stress-induced Netrin is a humoral signaling molecule that reprograms systemic metabolism in Drosophila. EMBO J 2023:e111383. [PMID: 37140455 DOI: 10.15252/embj.2022111383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/01/2023] [Accepted: 04/20/2023] [Indexed: 05/05/2023] Open
Abstract
Cancer exerts pleiotropic, systemic effects on organisms, leading to health deterioration and eventually to organismal death. How cancer induces systemic effects on remote organs and the organism itself still remains elusive. Here we describe a role for NetrinB (NetB), a protein with a particularly well-characterized role as a tissue-level axon guidance cue, in mediating oncogenic stress-induced organismal, metabolic reprogramming as a systemic humoral factor. In Drosophila, Ras-induced dysplastic cells upregulate and secrete NetB. Inhibition of either NetB from the transformed tissue or its receptor in the fat body suppresses oncogenic stress-induced organismal death. NetB from the dysplastic tissue remotely suppresses carnitine biosynthesis in the fat body, which is critical for acetyl-CoA generation and systemic metabolism. Supplementation of carnitine or acetyl-CoA ameliorates organismal health under oncogenic stress. This is the first identification, to our knowledge, of a role for the Netrin molecule, which has been studied extensively for its role within tissues, in humorally mediating systemic effects of local oncogenic stress on remote organs and organismal metabolism.
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Affiliation(s)
- Morihiro Okada
- Physiological Genetics Laboratory, RIKEN CPR, Kobe, Japan
- Laboratory for Homeodynamics, RIKEN BDR, Kobe, Japan
| | - Tomomi Takano
- Physiological Genetics Laboratory, RIKEN CPR, Kobe, Japan
- Laboratory for Homeodynamics, RIKEN BDR, Kobe, Japan
| | - Yuko Ikegawa
- Laboratory for Homeodynamics, RIKEN BDR, Kobe, Japan
- Graduate School of Biostudies, Kyoto University, Kyoto, Japan
| | - Hanna Ciesielski
- Physiological Genetics Laboratory, RIKEN CPR, Kobe, Japan
- Division of Developmental Biology and Regenerative Medicine, Kobe University, Kobe, Japan
| | - Hiroshi Nishida
- Physiological Genetics Laboratory, RIKEN CPR, Kobe, Japan
- Division of Cell Physiology, Kobe University, Kobe, Japan
| | - Sa Kan Yoo
- Physiological Genetics Laboratory, RIKEN CPR, Kobe, Japan
- Laboratory for Homeodynamics, RIKEN BDR, Kobe, Japan
- Division of Developmental Biology and Regenerative Medicine, Kobe University, Kobe, Japan
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28
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Wang X, Li J, Zhang W, Wang F, Wu Y, Guo Y, Wang D, Yu X, Li A, Li F, Xie Y. IGFBP-3 promotes cachexia-associated lipid loss by suppressing insulin-like growth factor/insulin signaling. Chin Med J (Engl) 2023; 136:974-985. [PMID: 37014770 PMCID: PMC10278738 DOI: 10.1097/cm9.0000000000002628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Progressive lipid loss of adipose tissue is a major feature of cancer-associated cachexia. In addition to systemic immune/inflammatory effects in response to tumor progression, tumor-secreted cachectic ligands also play essential roles in tumor-induced lipid loss. However, the mechanisms of tumor-adipose tissue interaction in lipid homeostasis are not fully understood. METHODS The yki -gut tumors were induced in fruit flies. Lipid metabolic assays were performed to investigate the lipolysis level of different types of insulin-like growth factor binding protein-3 (IGFBP-3) treated cells. Immunoblotting was used to display phenotypes of tumor cells and adipocytes. Quantitative polymerase chain reaction (qPCR) analysis was carried out to examine the gene expression levels such as Acc1 , Acly , and Fasn et al . RESULTS In this study, it was revealed that tumor-derived IGFBP-3 was an important ligand directly causing lipid loss in matured adipocytes. IGFBP-3, which is highly expressed in cachectic tumor cells, antagonized insulin/IGF-like signaling (IIS) and impaired the balance between lipolysis and lipogenesis in 3T3-L1 adipocytes. Conditioned medium from cachectic tumor cells, such as Capan-1 and C26 cells, contained excessive IGFBP-3 that potently induced lipolysis in adipocytes. Notably, neutralization of IGFBP-3 by neutralizing antibody in the conditioned medium of cachectic tumor cells significantly alleviated the lipolytic effect and restored lipid storage in adipocytes. Furthermore, cachectic tumor cells were resistant to IGFBP-3 inhibition of IIS, ensuring their escape from IGFBP-3-associated growth suppression. Finally, cachectic tumor-derived ImpL2, the IGFBP-3 homolog, also impaired lipid homeostasis of host cells in an established cancer-cachexia model in Drosophila . Most importantly, IGFBP-3 was highly expressed in cancer tissues in pancreatic and colorectal cancer patients, especially higher in the sera of cachectic cancer patients than non-cachexia cancer patients. CONCLUSION Our study demonstrates that tumor-derived IGFBP-3 plays a critical role in cachexia-associated lipid loss and could be a biomarker for diagnosis of cachexia in cancer patients.
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Affiliation(s)
- Xiaohui Wang
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Jia Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Wei Zhang
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Feng Wang
- Department of Gastrointestinal Surgery, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Yunzi Wu
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Yulin Guo
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Dong Wang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Xinfeng Yu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Ang Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Fei Li
- Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Yibin Xie
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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29
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Al-Sawaf O, Weiss J, Skrzypski M, Lam JM, Karasaki T, Zambrana F, Kidd AC, Frankell AM, Watkins TBK, Martínez-Ruiz C, Puttick C, Black JRM, Huebner A, Bakir MA, Sokač M, Collins S, Veeriah S, Magno N, Naceur-Lombardelli C, Prymas P, Toncheva A, Ward S, Jayanth N, Salgado R, Bridge CP, Christiani DC, Mak RH, Bay C, Rosenthal M, Sattar N, Welsh P, Liu Y, Perrimon N, Popuri K, Beg MF, McGranahan N, Hackshaw A, Breen DM, O'Rahilly S, Birkbak NJ, Aerts HJWL, Jamal-Hanjani M, Swanton C. Body composition and lung cancer-associated cachexia in TRACERx. Nat Med 2023; 29:846-858. [PMID: 37045997 PMCID: PMC7614477 DOI: 10.1038/s41591-023-02232-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 01/24/2023] [Indexed: 04/14/2023]
Abstract
Cancer-associated cachexia (CAC) is a major contributor to morbidity and mortality in individuals with non-small cell lung cancer. Key features of CAC include alterations in body composition and body weight. Here, we explore the association between body composition and body weight with survival and delineate potential biological processes and mediators that contribute to the development of CAC. Computed tomography-based body composition analysis of 651 individuals in the TRACERx (TRAcking non-small cell lung Cancer Evolution through therapy (Rx)) study suggested that individuals in the bottom 20th percentile of the distribution of skeletal muscle or adipose tissue area at the time of lung cancer diagnosis, had significantly shorter lung cancer-specific survival and overall survival. This finding was validated in 420 individuals in the independent Boston Lung Cancer Study. Individuals classified as having developed CAC according to one or more features at relapse encompassing loss of adipose or muscle tissue, or body mass index-adjusted weight loss were found to have distinct tumor genomic and transcriptomic profiles compared with individuals who did not develop such features. Primary non-small cell lung cancers from individuals who developed CAC were characterized by enrichment of inflammatory signaling and epithelial-mesenchymal transitional pathways, and differentially expressed genes upregulated in these tumors included cancer-testis antigen MAGEA6 and matrix metalloproteinases, such as ADAMTS3. In an exploratory proteomic analysis of circulating putative mediators of cachexia performed in a subset of 110 individuals from TRACERx, a significant association between circulating GDF15 and loss of body weight, skeletal muscle and adipose tissue was identified at relapse, supporting the potential therapeutic relevance of targeting GDF15 in the management of CAC.
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Affiliation(s)
- Othman Al-Sawaf
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Metastasis Laboratory, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Jakob Weiss
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Department of Diagnostic and Interventional Radiology, University Freiburg, Freiburg, Germany
| | - Marcin Skrzypski
- Department of Oncology and Radiotherapy, Medical University of Gdańsk, Gdańsk, Poland
| | - Jie Min Lam
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Metastasis Laboratory, University College London Cancer Institute, London, UK
- Department of Oncology, University College London Hospitals, London, UK
| | - Takahiro Karasaki
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Metastasis Laboratory, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | | | - Andrew C Kidd
- Institute of Infection, Immunity & Inflammation, University of Glasgow, Glasgow, UK
| | - Alexander M Frankell
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Thomas B K Watkins
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Carlos Martínez-Ruiz
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Genome Evolution Research Group, Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Clare Puttick
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
- Cancer Genome Evolution Research Group, Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - James R M Black
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Genome Evolution Research Group, Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Ariana Huebner
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
- Cancer Genome Evolution Research Group, Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Maise Al Bakir
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
| | - Mateo Sokač
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
- Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - Susie Collins
- Early Clinical Development, Pfizer UK Ltd, Cambridge, UK
| | - Selvaraju Veeriah
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Neil Magno
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | | | - Paulina Prymas
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Antonia Toncheva
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Sophia Ward
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK
- Advanced Sequencing Facility, The Francis Crick Institute, London, UK
| | - Nick Jayanth
- Cancer Research UK & UCL Cancer Trials Centre, London, UK
| | - Roberto Salgado
- Department of Pathology, ZAS Hospitals, Antwerp, Belgium
- Division of Research, Peter MacCallum Cancer Centre, Melbourne, Australia
| | | | - David C Christiani
- Department of Medicine, Massachusetts General Hospital/Harvard Medicine School, and Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Raymond H Mak
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Camden Bay
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, and Harvard Medical School, Boston, MA, USA
| | - Michael Rosenthal
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, and Harvard Medical School, Boston, MA, USA
| | - Naveed Sattar
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Ying Liu
- Department of Genetics, Harvard Medical School, Boston, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, USA
| | - Norbert Perrimon
- Department of Genetics, Harvard Medical School, Boston, USA
- Howard Hughes Medical Institute, Harvard Medical School, Boston, USA
| | - Karteek Popuri
- Department of Computer Science, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Burnaby, Canada
| | - Mirza Faisal Beg
- School of Engineering Science, Simon Fraser University, Burnaby, British Colombia, Canada
| | - Nicholas McGranahan
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
- Cancer Genome Evolution Research Group, Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK
| | - Allan Hackshaw
- Cancer Research UK & UCL Cancer Trials Centre, London, UK
| | - Danna M Breen
- Internal Medicine Research Unit, Pfizer, Cambridge, MA, USA
| | - Stephen O'Rahilly
- Wellcome Trust-MRC Institute of Metabolic Science and NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Nicolai J Birkbak
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
- Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - Hugo J W L Aerts
- Artificial Intelligence in Medicine (AIM) Program, Mass General Brigham, Harvard Medical School, Boston, MA, USA
- Department of Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Radiology and Nuclear Medicine, CARIM & GROW, Maastricht University, Maastricht, The Netherlands
| | - Mariam Jamal-Hanjani
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK.
- Cancer Metastasis Laboratory, University College London Cancer Institute, London, UK.
- Department of Oncology, University College London Hospitals, London, UK.
| | - Charles Swanton
- Cancer Research UK Lung Cancer Centre of Excellence, University College London Cancer Institute, London, UK.
- Cancer Evolution and Genome Instability Laboratory, The Francis Crick Institute, London, UK.
- Department of Oncology, University College London Hospitals, London, UK.
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Banzai K, Nishimura T. Isolation of a novel missense mutation in insulin receptor as a spontaneous revertant in ImpL2 mutants in Drosophila. Development 2023; 150:285910. [PMID: 36504086 DOI: 10.1242/dev.201248] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022]
Abstract
Evolutionarily conserved insulin/insulin-like growth factor (IGF) signaling (IIS) correlates nutrient levels to metabolism and growth, thereby playing crucial roles in development and adult fitness. In the fruit fly Drosophila, ImpL2, an ortholog of IGFBP7, binds to and inhibits the function of Drosophila insulin-like peptides. In this study, we isolated a temperature-sensitive mutation in the insulin receptor (InR) gene as a spontaneous revertant in ImpL2 null mutants. The p.Y902C missense mutation is located at the functionally conserved amino acid residue of the first fibronectin type III domain of InR. The hypomorphic InR mutant animals showed a temperature-dependent reduction in IIS and body size. The mutant animals also exhibited metabolic defects, such as increased triglyceride and carbohydrate levels. Metabolomic analysis further revealed that defects in InR caused dysregulation of amino acid and ribonucleotide metabolism. We also observed that InR mutant females produced tiny irregular-shaped embryos with reduced fecundity. In summary, this novel allele of InR is a valuable tool for the Drosophila genetic model of insulin resistance and type 2 diabetes.
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Affiliation(s)
- Kota Banzai
- Laboratory for Growth Control Signaling, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Hyogo 650-0047, Japan
| | - Takashi Nishimura
- Laboratory for Growth Control Signaling, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Hyogo 650-0047, Japan.,Laboratory of Metabolic Regulation and Genetics, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Gunma 371-8512, Japan
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31
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Lee J, Yun HM, Han G, Lee GJ, Jeon CO, Hyun S. A bacteria-regulated gut peptide determines host dependence on specific bacteria to support host juvenile development and survival. BMC Biol 2022; 20:258. [PMID: 36397042 PMCID: PMC9670437 DOI: 10.1186/s12915-022-01458-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Commensal microorganisms have a significant impact on the physiology of host animals, including Drosophila. Lactobacillus and Acetobacter, the two most common commensal bacteria in Drosophila, stimulate fly development and growth, but the mechanisms underlying their functional interactions remain elusive. RESULTS We found that imaginal morphogenesis protein-Late 2 (Imp-L2), a Drosophila homolog of insulin-like growth factor binding protein 7, is expressed in gut enterocytes in a bacteria-dependent manner, determining host dependence on specific bacteria for host development. Imp-L2 mutation abolished the stimulatory effects of Lactobacillus, but not of Acetobacter, on fly larval development. The lethality of the Imp-L2 mutant markedly increased under axenic conditions, which was reversed by Acetobacter, but not Lactobacillus, re-association. The host dependence on specific bacteria was determined by Imp-L2 expressed in enterocytes, which was repressed by Acetobacter, but not Lactobacillus. Mechanistically, Lactobacillus and Acetobacter differentially affected steroid hormone-mediated Imp-L2 expression and Imp-L2-specific FOXO regulation. CONCLUSIONS Our finding may provide a way how host switches dependence between different bacterial species when benefiting from varying microbiota.
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Affiliation(s)
- Jaegeun Lee
- grid.254224.70000 0001 0789 9563Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Hyun Myoung Yun
- grid.254224.70000 0001 0789 9563Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Gangsik Han
- grid.254224.70000 0001 0789 9563Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Gang Jun Lee
- grid.254224.70000 0001 0789 9563Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Che Ok Jeon
- grid.254224.70000 0001 0789 9563Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
| | - Seogang Hyun
- grid.254224.70000 0001 0789 9563Department of Life Science, Chung-Ang University, Heukseok-ro, Dongjak-gu, Seoul, 06974 Republic of Korea
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Segrist E, Cherry S. Gutcha: The microbiota drives tumor-induced mortality. Immunity 2022; 55:1581-1583. [PMID: 36103854 DOI: 10.1016/j.immuni.2022.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Tumors can cause wasting and mortality, but the connection between these outcomes is unclear. In this issue of Immunity, Chen and colleagues find the outcomes are separable as the tumor-altered gut microbiota activates renal immunity and alters metabolism, leading to mortality independently of wasting.
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Affiliation(s)
- Elisha Segrist
- Metaorganism Immunity Section, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Sara Cherry
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
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Ferrara M, Samaden M, Ruggieri E, Vénéreau E. Cancer cachexia as a multiorgan failure: Reconstruction of the crime scene. Front Cell Dev Biol 2022; 10:960341. [PMID: 36158184 PMCID: PMC9493094 DOI: 10.3389/fcell.2022.960341] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Cachexia is a devastating syndrome associated with the end-stage of several diseases, including cancer, and characterized by body weight loss and severe muscle and adipose tissue wasting. Although different cancer types are affected to diverse extents by cachexia, about 80% of all cancer patients experience this comorbidity, which highly reduces quality of life and response to therapy, and worsens prognosis, accounting for more than 25% of all cancer deaths. Cachexia represents an urgent medical need because, despite several molecular mechanisms have been identified, no effective therapy is currently available for this devastating syndrome. Most studies focus on skeletal muscle, which is indeed the main affected and clinically relevant organ, but cancer cachexia is characterized by a multiorgan failure. In this review, we focus on the current knowledge on the multiple tissues affected by cachexia and on the biomarkers with the attempt to define a chronological pathway, which might be useful for the early identification of patients who will undergo cachexia. Indeed, it is likely that the inefficiency of current therapies might be attributed, at least in part, to their administration in patients at the late stages of cachexia.
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Affiliation(s)
- Michele Ferrara
- Tissue Regeneration and Homeostasis Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Maria Samaden
- Tissue Regeneration and Homeostasis Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Elena Ruggieri
- Tissue Regeneration and Homeostasis Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Emilie Vénéreau
- Tissue Regeneration and Homeostasis Unit, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- *Correspondence: Emilie Vénéreau,
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Transforming Growth Factor-Beta Signaling in Cancer-Induced Cachexia: From Molecular Pathways to the Clinics. Cells 2022; 11:cells11172671. [PMID: 36078078 PMCID: PMC9454487 DOI: 10.3390/cells11172671] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 02/06/2023] Open
Abstract
Cachexia is a metabolic syndrome consisting of massive loss of muscle mass and function that has a severe impact on the quality of life and survival of cancer patients. Up to 20% of lung cancer patients and up to 80% of pancreatic cancer patients are diagnosed with cachexia, leading to death in 20% of them. The main drivers of cachexia are cytokines such as interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), macrophage inhibitory cytokine 1 (MIC-1/GDF15) and transforming growth factor-beta (TGF-β). Besides its double-edged role as a tumor suppressor and activator, TGF-β causes muscle loss through myostatin-based signaling, involved in the reduction in protein synthesis and enhanced protein degradation. Additionally, TGF-β induces inhibin and activin, causing weight loss and muscle depletion, while MIC-1/GDF15, a member of the TGF-β superfamily, leads to anorexia and so, indirectly, to muscle wasting, acting on the hypothalamus center. Against this background, the blockade of TGF-β is tested as a potential mechanism to revert cachexia, and antibodies against TGF-β reduced weight and muscle loss in murine models of pancreatic cancer. This article reviews the role of the TGF-β pathway and to a minor extent of other molecules including microRNA in cancer onset and progression with a special focus on their involvement in cachexia, to enlighten whether TGF-β and such other players could be potential targets for therapy.
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Jiang H, Kimura T, Hai H, Yamamura R, Sonoshita M. Drosophila as a toolkit to tackle cancer and its metabolism. Front Oncol 2022; 12:982751. [PMID: 36091180 PMCID: PMC9458318 DOI: 10.3389/fonc.2022.982751] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
Cancer is one of the most severe health problems worldwide accounting for the second leading cause of death. Studies have indicated that cancers utilize different metabolic systems as compared with normal cells to produce extra energy and substances required for their survival, which contributes to tumor formation and progression. Recently, the fruit fly Drosophila has been attracting significant attention as a whole-body model for elucidating the cancer mechanisms including metabolism. This tiny organism offers a valuable toolkit with various advantages such as high genetic conservation and similar drug response to mammals. In this review, we introduce flies modeling for cancer patient genotypes which have pinpointed novel therapeutic targets and drug candidates in the salivary gland, thyroid, colon, lung, and brain. Furthermore, we introduce fly models for metabolic diseases such as diabetes mellitus, obesity, and cachexia. Diabetes mellitus and obesity are widely acknowledged risk factors for cancer, while cachexia is a cancer-related metabolic condition. In addition, we specifically focus on two cancer metabolic alterations: the Warburg effect and redox metabolism. Indeed, flies proved useful to reveal the relationship between these metabolic changes and cancer. Such accumulating achievements indicate that Drosophila offers an efficient platform to clarify the mechanisms of cancer as a systemic disease.
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Affiliation(s)
- Hui Jiang
- Division of Biomedical Oncology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Taku Kimura
- Division of Biomedical Oncology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
- Department of Oral Diagnosis and Medicine, Graduate school of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Han Hai
- Division of Biomedical Oncology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
| | - Ryodai Yamamura
- Division of Biomedical Oncology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo, Japan
- *Correspondence: Ryodai Yamamura, ; Masahiro Sonoshita,
| | - Masahiro Sonoshita
- Division of Biomedical Oncology, Institute for Genetic Medicine, Hokkaido University, Sapporo, Japan
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo, Japan
- *Correspondence: Ryodai Yamamura, ; Masahiro Sonoshita,
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36
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Chen Y, Xu W, Chen Y, Han A, Song J, Zhou X, Song W. Renal NF-κB activation impairs uric acid homeostasis to promote tumor-associated mortality independent of wasting. Immunity 2022; 55:1594-1608.e6. [PMID: 36029766 DOI: 10.1016/j.immuni.2022.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 05/27/2022] [Accepted: 07/29/2022] [Indexed: 12/12/2022]
Abstract
Tumor-induced host wasting and mortality are general phenomena across species. Many groups have previously demonstrated endocrinal impacts of malignant tumors on host wasting in rodents and Drosophila. Whether and how environmental factors and host immune response contribute to tumor-associated host wasting and survival, however, are largely unknown. Here, we report that flies bearing malignant yki3SA-gut tumors exhibited the exponential increase of commensal bacteria, which were mostly acquired from the environment, and systemic IMD-NF-κB activation due to suppression of a gut antibacterial amidase PGRP-SC2. Either gut microbial elimination or specific IMD-NF-κB blockade in the renal-like Malpighian tubules potently improved mortality of yki3SA-tumor-bearing flies in a manner independent of host wasting. We further indicate that renal IMD-NF-κB activation caused uric acid (UA) overload to reduce survival of tumor-bearing flies. Therefore, our results uncover a fundamental mechanism whereby gut commensal dysbiosis, renal immune activation, and UA imbalance potentiate tumor-associated host death.
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Affiliation(s)
- Yuchen Chen
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Wenhao Xu
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Yuan Chen
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Anxuan Han
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Jiantao Song
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Xiaoya Zhou
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China
| | - Wei Song
- Department of Hepatobiliary and Pancreatic Surgery, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, Hubei 430071, China; TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, China.
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37
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Hultmark D, Andó I. Hematopoietic plasticity mapped in Drosophila and other insects. eLife 2022; 11:78906. [PMID: 35920811 PMCID: PMC9348853 DOI: 10.7554/elife.78906] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/20/2022] [Indexed: 12/12/2022] Open
Abstract
Hemocytes, similar to vertebrate blood cells, play important roles in insect development and immunity, but it is not well understood how they perform their tasks. New technology, in particular single-cell transcriptomic analysis in combination with Drosophila genetics, may now change this picture. This review aims to make sense of recently published data, focusing on Drosophila melanogaster and comparing to data from other drosophilids, the malaria mosquito, Anopheles gambiae, and the silkworm, Bombyx mori. Basically, the new data support the presence of a few major classes of hemocytes: (1) a highly heterogenous and plastic class of professional phagocytes with many functions, called plasmatocytes in Drosophila and granular cells in other insects. (2) A conserved class of cells that control melanin deposition around parasites and wounds, called crystal cells in D. melanogaster, and oenocytoids in other insects. (3) A new class of cells, the primocytes, so far only identified in D. melanogaster. They are related to cells of the so-called posterior signaling center of the larval hematopoietic organ, which controls the hematopoiesis of other hemocytes. (4) Different kinds of specialized cells, like the lamellocytes in D. melanogaster, for the encapsulation of parasites. These cells undergo rapid evolution, and the homology relationships between such cells in different insects are uncertain. Lists of genes expressed in the different hemocyte classes now provide a solid ground for further investigation of function.
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Affiliation(s)
- Dan Hultmark
- Department of Molecular Biology, Umeå University, Umeå, Sweden
| | - István Andó
- Biological Research Centre, Institute of Genetics, Innate Immunity Group, Eötvös Loránd Research Network, Szeged, Hungary
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38
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Weina T, Ying L, Yiwen W, Huan-Huan Q. What we have learnt from Drosophila model organism: the coordination between insulin signaling pathway and tumor cells. Heliyon 2022; 8:e09957. [PMID: 35874083 PMCID: PMC9304707 DOI: 10.1016/j.heliyon.2022.e09957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/25/2022] [Accepted: 07/11/2022] [Indexed: 02/08/2023] Open
Abstract
Cancer development is related to a variety of signaling pathways which mediate various cellular processes including growth, survival, division and competition of cells, as well as cell-cell interaction. The insulin signaling pathway interacts with different pathways and plays a core role in the regulations of all these processes. In this study, we reviewed recent studies on the relationship between the insulin signaling pathway and tumors using the Drosophila melanogaster model. We found that on one hand, the insulin pathway is normally hyperactive in tumor cells, which promotes tumor growth, and on the other hand, tumor cells can suppress the growth of healthy tissues via inhibition of their insulin pathway. Moreover, systematic disruption in glucose homeostasis also facilitates cancer development by different mechanisms. The studies on how the insulin network regulates the behaviors of cancer cells may help to discover new therapeutic treatments for cancer.
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Affiliation(s)
- Tang Weina
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Li Ying
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Wang Yiwen
- School of Pharmaceutical Science and Technology, Tianjin University, 300072, Tianjin, China
| | - Qiao Huan-Huan
- Academy of Medical Engineering and Translational Medicine, Tianjin University, 300072, Tianjin, China
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39
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Kong D, Zhao S, Xu W, Dong J, Ma X. Fat body-derived Spz5 remotely facilitates tumor-suppressive cell competition through Toll-6-α-Spectrin axis-mediated Hippo activation. Cell Rep 2022; 39:110980. [PMID: 35732124 DOI: 10.1016/j.celrep.2022.110980] [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: 01/07/2022] [Revised: 04/19/2022] [Accepted: 05/27/2022] [Indexed: 11/03/2022] Open
Abstract
Tumor-suppressive cell competition is an evolutionarily conserved process that selectively removes precancerous cells to maintain tissue homeostasis. Using the polarity-deficiency-induced cell competition model in Drosophila, we identify Toll-6, a Toll-like receptor family member, as a driver of tension-mediated cell competition through α-Spectrin (α-Spec)-Yorkie (Yki) cascade. Toll-6 aggregates along the boundary between wild-type and polarity-deficient clones, where Toll-6 physically interacts with the cytoskeleton network protein α-Spec to increase mechanical tension, resulting in actomyosin-dependent Hippo pathway activation and the elimination of scrib mutant cells. Furthermore, we show that Spz5 secreted from fat body, the key innate organ in fly, facilitates the elimination of scrib clones by binding to Toll-6. These findings uncover mechanisms by which fat bodies remotely regulate tumor-suppressive cell competition of polarity-deficient tumors through inter-organ crosstalk and identified the Toll-6-α-Spec axis as an essential guardian that prevents tumorigenesis via tension-mediated cell elimination.
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Affiliation(s)
- Du Kong
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China; Institute of Biology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Sihua Zhao
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China; Institute of Biology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Wenyan Xu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China; Institute of Biology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Jinxi Dong
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China; Institute of Biology, Westlake Institute for Advanced Study, Hangzhou 310024, China
| | - Xianjue Ma
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou 310024, China; Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou 310024, China; Institute of Biology, Westlake Institute for Advanced Study, Hangzhou 310024, China.
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40
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Hegde M, Daimary UD, Girisa S, Kumar A, Kunnumakkara AB. Tumor cell anabolism and host tissue catabolism-energetic inefficiency during cancer cachexia. Exp Biol Med (Maywood) 2022; 247:713-733. [PMID: 35521962 DOI: 10.1177/15353702221087962] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cancer-associated cachexia (CC) is a pathological condition characterized by sarcopenia, adipose tissue depletion, and progressive weight loss. CC is driven by multiple factors such as anorexia, excessive catabolism, elevated energy expenditure by growing tumor mass, and inflammatory mediators released by cancer cells and surrounding tissues. In addition, endocrine system, systemic metabolism, and central nervous system (CNS) perturbations in combination with cachexia mediators elicit exponential elevation in catabolism and reduced anabolism in skeletal muscle, adipose tissue, and cardiac muscle. At the molecular level, mechanisms of CC include inflammation, reduced protein synthesis, and lipogenesis, elevated proteolysis and lipolysis along with aggravated toxicity and complications of chemotherapy. Furthermore, CC is remarkably associated with intolerance to anti-neoplastic therapy, poor prognosis, and increased mortality with no established standard therapy. In this context, we discuss the spatio-temporal changes occurring in the various stages of CC and highlight the imbalance of host metabolism. We provide how multiple factors such as proteasomal pathways, inflammatory mediators, lipid and protein catabolism, glucocorticoids, and in-depth mechanisms of interplay between inflammatory molecules and CNS can trigger and amplify the cachectic processes. Finally, we highlight current diagnostic approaches and promising therapeutic interventions for CC.
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Affiliation(s)
- Mangala Hegde
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India.,DBT-AIST International Center for Translational and Environmental Research, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India
| | - Uzini Devi Daimary
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India.,DBT-AIST International Center for Translational and Environmental Research, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India
| | - Sosmitha Girisa
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India.,DBT-AIST International Center for Translational and Environmental Research, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India
| | - Aviral Kumar
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India.,DBT-AIST International Center for Translational and Environmental Research, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India.,DBT-AIST International Center for Translational and Environmental Research, Indian Institute of Technology-Guwahati, Guwahati 781039, Assam, India
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41
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Chandler JA, Innocent LV, Martinez DJ, Huang IL, Yang JL, Eisen MB, Ludington WB. Microbiome-by-ethanol interactions impact Drosophila melanogaster fitness, physiology, and behavior. iScience 2022; 25:104000. [PMID: 35313693 PMCID: PMC8933687 DOI: 10.1016/j.isci.2022.104000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/24/2021] [Accepted: 02/25/2022] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota can affect how animals respond to ingested toxins, such as ethanol, which is prevalent in the diets of diverse animals and often leads to negative health outcomes in humans. Ethanol is a complex dietary factor because it acts as a toxin, behavioral manipulator, and nutritional source, with both direct effects on the host as well as indirect ones through the microbiome. Here, we developed a model for chronic, non-intoxicating ethanol ingestion in the adult fruit fly, Drosophila melanogaster, and paired this with the tractability of the fly gut microbiota, which can be experimentally removed. We linked numerous physiological, behavioral, and transcriptional variables to fly fitness, including a combination of intestinal barrier integrity, stored triglyceride levels, feeding behavior, and the immunodeficiency pathway. Our results reveal a complex tradeoff between lifespan and fecundity that is microbiome-dependent and modulated by dietary ethanol and feeding behavior.
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Affiliation(s)
- James Angus Chandler
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Lina Victoria Innocent
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
| | | | - Isaac Li Huang
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Jane Lani Yang
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
| | - Michael Bruce Eisen
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
- Department of Integrative Biology, University of California, Berkeley, CA 94720, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - William Basil Ludington
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA
- Department of Embryology, Carnegie Institution for Science, Baltimore, MD 21218, USA
- Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA
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Re Cecconi AD, Barone M, Forti M, Lunardi M, Cagnotto A, Salmona M, Olivari D, Zentilin L, Resovi A, Persichitti P, Belotti D, Palo F, Takakura N, Kidoya H, Piccirillo R. Apelin Resistance Contributes to Muscle Loss during Cancer Cachexia in Mice. Cancers (Basel) 2022; 14:cancers14071814. [PMID: 35406586 PMCID: PMC8997437 DOI: 10.3390/cancers14071814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/15/2022] [Accepted: 03/29/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Cancer cachexia is a highly debilitating syndrome involving severe body weight loss. Worldwide around 9–14.5 million cancer patients suffer from cachexia every year and many of them die because of cachexia. Our study aimed to assess the possible role of apelin against muscle loss during cancer growth given its beneficial effects against muscle atrophy during aging. We found apelin exhibiting advantageous effects against atrophy in in vitro models, but not in in vivo models, where we unraveled undesirable apelin resistance that may nullify apelin-based therapy for cancer cachexia. Abstract Cancer cachexia consists of dramatic body weight loss with rapid muscle depletion due to imbalanced protein homeostasis. We found that the mRNA levels of apelin decrease in muscles from cachectic hepatoma-bearing rats and three mouse models of cachexia. Furthermore, apelin expression inversely correlates with MuRF1 in muscle biopsies from cancer patients. To shed light on the possible role of apelin in cachexia in vivo, we generated apelin 13 carrying all the last 13 amino acids of apelin in D isomers, ultimately extending plasma stability. Notably, apelin D-peptides alter cAMP-based signaling in vitro as the L-peptides, supporting receptor binding. In vitro apelin 13 protects myotube diameter from dexamethasone-induced atrophy, restrains rates of degradation of long-lived proteins and MuRF1 expression, but fails to protect mice from atrophy. D-apelin 13 given intraperitoneally for 13 days in colon adenocarcinoma C26-bearing mice does not reduce catabolic pathways in muscles, as it does in vitro. Puzzlingly, the levels of circulating apelin seemingly deriving from cachexia-inducing tumors, increase in murine plasma during cachexia. Muscle electroporation of a plasmid expressing its receptor APJ, unlike apelin, preserves myofiber area from C26-induced atrophy, supporting apelin resistance in vivo. Altogether, we believe that during cachexia apelin resistance occurs, contributing to muscle wasting and nullifying any possible peptide-based treatment.
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Affiliation(s)
- Andrea David Re Cecconi
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
| | - Mara Barone
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
| | - Mara Forti
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
| | - Martina Lunardi
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
| | - Alfredo Cagnotto
- Molecular Biochemistry and Pharmacology Department, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.C.); (M.S.)
| | - Mario Salmona
- Molecular Biochemistry and Pharmacology Department, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.C.); (M.S.)
| | - Davide Olivari
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
| | - Lorena Zentilin
- Molecular Medicine, International Centre for Genetic Engineering and Biotechnology, Via Padriciano 99, 34149 Trieste, Italy;
| | - Andrea Resovi
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, 24126 Bergamo, Italy; (A.R.); (P.P.); (D.B.)
| | - Perla Persichitti
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, 24126 Bergamo, Italy; (A.R.); (P.P.); (D.B.)
| | - Dorina Belotti
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano 87, 24126 Bergamo, Italy; (A.R.); (P.P.); (D.B.)
| | - Federica Palo
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
| | - Nobuyuki Takakura
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita-shi, Osaka 565-0871, Japan;
| | - Hiroyasu Kidoya
- Department of Integrative Vascular Biology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka-Shimoaizuki, Eiheiji, Yoshida, Fukui 910-1193, Japan;
| | - Rosanna Piccirillo
- Department of Neurosciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156 Milan, Italy; (A.D.R.C.); (M.B.); (M.F.); (M.L.); (D.O.); (F.P.)
- Correspondence: ; Tel.: +39-02-39014371
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Understanding the molecular basis of anorexia and tissue wasting in cancer cachexia. Exp Mol Med 2022; 54:426-432. [PMID: 35388147 PMCID: PMC9076846 DOI: 10.1038/s12276-022-00752-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 12/15/2021] [Accepted: 01/16/2022] [Indexed: 02/07/2023] Open
Abstract
Cancer cachexia syndrome is a major cause of morbidity and mortality in cancer patients in the advanced stage. It is a devastating disorder characterized by nutritional impairment, weakness, and wasting, and it affects treatment success and quality of life. Two major symptoms of cancer cachexia are anorexia and weight loss. Weight loss in cachexia is not reversed through increased food intake, suggesting that anorexia and weight loss in cancer patients are regulated by independent molecular mechanisms. Although the wasting phenotype mostly occurs in skeletal muscle and adipose tissue, other organs, such as the brain, liver, pancreas, heart, and gut, are also involved in cachexia. Thus, cachexia is a multiorgan syndrome. Although the molecular basis of cancer cachexia-induced weight loss is known, the mechanism underlying anorexia is poorly understood. Here, we highlight our recent discovery of a new anorexia mechanism by which a tumor-derived humoral factor induces cancer anorexia by regulating feeding-related neuropeptide hormones in the brain. Furthermore, we elucidated the process through which anorexia precedes tissue wasting in cachexia. This review article aims to provide an overview of the key molecular mechanisms of anorexia and tissue wasting caused by cancer cachexia. Tumors can release factors that cause anorexia and weight loss in cancer patients, negatively impacting quality of life and treatment success. Patients with this condition, known as cachexia, can lose their appetite and be unable to gain weight even if they eat more. Although cancer cachexia directly causes the death of up to 20% of cancer patients, the mechanisms are poorly understood. Eunbyul Yeom and Kweon Yu at The Korea Research Institute of Bioscience and Biotechnology, Daejon, South Korea have reviewed the causes of cancer cachexia, highlighting their recent discovery that tumors produce a signaling molecule that induces anorexia by disrupting hunger signaling in the brain. Improving our understanding of the mechanisms underlying cancer cachexia may help in development of treatments.
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Kim HD, So E, Lee J, Wang Y, Gill VS, Gorbacheva A, Han HJ, Ng KGL, Ning K, Pranoto IKA, Cabrera AJH, Eom DS, Kwon YV. Wear and Tear of the Intestinal Visceral Musculature by Intrinsic and Extrinsic Factors. Dev Dyn 2022; 251:1291-1305. [PMID: 35355366 DOI: 10.1002/dvdy.473] [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: 10/04/2021] [Revised: 02/18/2022] [Accepted: 03/19/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The gut visceral musculature plays essential roles in not only moving substances through the lumen but also maintaining the function and physiology of the gut. Although the development of the visceral musculature has been studied in multiple model organisms, how it degenerates is poorly understood. RESULTS Here, we employ the Drosophila midgut as a model to demonstrate that the visceral musculature is disrupted by intrinsic and extrinsic factors, such as aging, feeding, chemical-induced tissue damage, and oncogenic transformation in the epithelium. Notably, we define four prominent visceral musculature disruption phenotypes, which we refer as 'sprout', 'discontinuity', 'furcation', and 'crossover' of the longitudinal muscle. Given that the occurrence of these phenotypes is increased during aging and under various stresses, we propose that these phenotypes can be used as quantitative readouts of deterioration of the visceral musculature. Intriguingly, administration of a tissue-damaging chemical dextran sulfate sodium (DSS) induced similar visceral musculature disruption phenotypes in zebrafish larvae, indicating that ingestion of a tissue-damaging chemical can disrupt the visceral musculature in a vertebrate as well. CONCLUSIONS Our study provides insights into the deterioration of the gut visceral musculature and lays a groundwork for investigating the underlying mechanisms in Drosophila as well as other animals. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ho D Kim
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Eric So
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Jiae Lee
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Yi Wang
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, CA
| | - Vikram S Gill
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Anna Gorbacheva
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Hee Jin Han
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Katelyn G-L Ng
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Ken Ning
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Inez K A Pranoto
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Alejandra J H Cabrera
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
| | - Dae Seok Eom
- Department of Developmental and Cell Biology, School of Biological Sciences, University of California, Irvine, CA
| | - Young V Kwon
- Department of Biochemistry, School of Medicine, University of Washington, Seattle, WA
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Dark C, Cheung S, Cheng LY. Analyzing cachectic phenotypes in the muscle and fat body of Drosophila larvae. STAR Protoc 2022; 3:101230. [PMID: 35284841 PMCID: PMC8915010 DOI: 10.1016/j.xpro.2022.101230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Drosophila has become a popular model for examining the metabolic wasting syndrome, cachexia, characterized by degradation of muscles and fat. Here we present a protocol for quick and consistent scoring of muscle detachment, fat body lipid droplet size, and extracellular matrix (ECM) quantifications in Drosophila larvae. We detail the procedures for dissecting, staining, and imaging third instar Drosophila larval muscle fillets and fat body, and how to utilize FIJI macros for robust quantification of cachectic phenotypes in these dissected tissues. For complete details on the use and execution of this protocol, please refer to Lodge et al. (2021). Detailed description of larval muscle preparation for muscle detachment analysis Detailed description of fat body dissection Quantification of fat body lipid droplet size and ECM disruption using FIJI macros
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Affiliation(s)
- Callum Dark
- Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Shane Cheung
- Biological Optical Microscopy Platform, Faculty of Medicine, Dentistry & Health Sciences, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Louise Y. Cheng
- Peter MacCallum Cancer Centre, Melbourne, VIC 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC 3010, Australia
- Corresponding author
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Medina A, Bellec K, Polcowñuk S, Cordero JB. Investigating local and systemic intestinal signalling in health and disease with Drosophila. Dis Model Mech 2022; 15:274860. [PMID: 35344037 PMCID: PMC8990086 DOI: 10.1242/dmm.049332] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Whole-body health relies on complex inter-organ signalling networks that enable organisms to adapt to environmental perturbations and to changes in tissue homeostasis. The intestine plays a major role as a signalling centre by producing local and systemic signals that are relayed to the body and that maintain intestinal and organismal homeostasis. Consequently, disruption of intestinal homeostasis and signalling are associated with systemic diseases and multi-organ dysfunction. In recent years, the fruit fly Drosophila melanogaster has emerged as a prime model organism to study tissue-intrinsic and systemic signalling networks of the adult intestine due to its genetic tractability and functional conservation with mammals. In this Review, we highlight Drosophila research that has contributed to our understanding of how the adult intestine interacts with its microenvironment and with distant organs. We discuss the implications of these findings for understanding intestinal and whole-body pathophysiology, and how future Drosophila studies might advance our knowledge of the complex interplay between the intestine and the rest of the body in health and disease. Summary: We outline work in the fruit fly Drosophila melanogaster that has contributed knowledge on local and whole-body signalling coordinated by the adult intestine, and discuss its implications in intestinal pathophysiology and associated systemic dysfunction.
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Affiliation(s)
- Andre Medina
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1QH, UK.,CRUK Beatson Institute, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1BD, UK
| | - Karen Bellec
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1QH, UK
| | - Sofia Polcowñuk
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1QH, UK
| | - Julia B Cordero
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1QH, UK.,CRUK Beatson Institute, Institute of Cancer Sciences, University of Glasgow, Garscube Estate, Switchback Road, Glasgow G61 1BD, UK
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Abstract
Cachexia, a wasting syndrome that is often associated with cancer, is one of the primary causes of death in cancer patients. Cancer cachexia occurs largely due to systemic metabolic alterations stimulated by tumors. Despite the prevalence of cachexia, our understanding of how tumors interact with host tissues and how they affect metabolism is limited. Among the challenges of studying tumor-host tissue crosstalk are the complexity of cancer itself and our insufficient knowledge of the factors that tumors release into the blood. Drosophila is emerging as a powerful model in which to identify tumor-derived factors that influence systemic metabolism and tissue wasting. Strikingly, studies that are characterizing factors derived from different fly tumor cachexia models are identifying both common and distinct cachectic molecules, suggesting that cachexia is more than one disease and that fly models can help identify these differences. Here, we review what has been learned from studies of tumor-induced organ wasting in Drosophila and discuss the open questions.
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Affiliation(s)
- Ying Liu
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Pedro Saavedra
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Norbert Perrimon
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Howard Hughes Medical Institute, Boston, MA 02115, USA
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Abstract
Cancer continues to be a leading cause of death worldwide, largely due to metastases and cachexia. It is a complex disease that is commonly associated with a variety of comorbidities. With global increases in ageing populations and obesity, multimorbidity is a rapidly growing clinical issue in the context of cancer. Cancer is also genetically heterogeneous, with a tumour's unique profile determining its incidence of metastasis, degree of cachexia and response to therapeutics. These complexities of human cancer are difficult to replicate in animal models and are, in part, responsible for the failures in translational cancer research. In this Perspective, we highlight the fruit fly, Drosophila melanogaster, as a powerful model organism to investigate multimorbidity and tumour diversity. We also highlight how harnessing these complexities in Drosophila can, potentially, enhance cancer research and advance therapeutic discoveries.
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Affiliation(s)
- Courtney Choutka
- Medical Research Council London Institute of Medical Sciences, Du Cane Road, London W12 0NN, United Kingdom
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, Du Cane Road, London W12 0NN, United Kingdom
| | - Cecilia Cabrera
- Medical Research Council London Institute of Medical Sciences, Du Cane Road, London W12 0NN, United Kingdom
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, Du Cane Road, London W12 0NN, United Kingdom
| | - Susumu Hirabayashi
- Medical Research Council London Institute of Medical Sciences, Du Cane Road, London W12 0NN, United Kingdom
- Institute of Clinical Sciences, Faculty of Medicine, Imperial College London, Du Cane Road, London W12 0NN, United Kingdom
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Li Z, Qian W, Song W, Zhao T, Yang Y, Wang W, Wei L, Zhao D, Li Y, Perrimon N, Xia Q, Cheng D. A salivary gland-secreted peptide regulates insect systemic growth. Cell Rep 2022; 38:110397. [PMID: 35196492 DOI: 10.1016/j.celrep.2022.110397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/10/2021] [Accepted: 01/26/2022] [Indexed: 11/03/2022] Open
Abstract
Insect salivary glands have been previously shown to function in pupal attachment and food lubrication by secreting factors into the lumen via an exocrine way. Here, we find in Drosophila that a salivary gland-derived secreted factor (Sgsf) peptide regulates systemic growth via an endocrine way. Sgsf is specifically expressed in salivary glands and secreted into the hemolymph. Sgsf knockout or salivary gland-specific Sgsf knockdown decrease the size of both the body and organs, phenocopying the effects of genetic ablation of salivary glands, while salivary gland-specific Sgsf overexpression increases their size. Sgsf promotes systemic growth by modulating the secretion of the insulin-like peptide Dilp2 from the brain insulin-producing cells (IPCs) and affecting mechanistic target of rapamycin (mTOR) signaling in the fat body. Altogether, our study demonstrates that Sgsf mediates the roles of salivary glands in Drosophila systemic growth, establishing an endocrine function of salivary glands.
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Affiliation(s)
- Zheng Li
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Wenliang Qian
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Wei Song
- Medical Research Institute, Wuhan University, Wuhan 430071, China; Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Tujing Zhao
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Yan Yang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Weina Wang
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Ling Wei
- School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Dongchao Zhao
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Yaoyao Li
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China
| | - Norbert Perrimon
- Department of Genetics, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston, MA 02115, USA.
| | - Qingyou Xia
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China.
| | - Daojun Cheng
- State Key Laboratory of Silkworm Genome Biology, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Sericultural Science, Southwest University, Chongqing 400715, China.
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Computed tomography with segmentation and quantification of individual organs in a D. melanogaster tumor model. Sci Rep 2022; 12:2056. [PMID: 35136137 PMCID: PMC8825794 DOI: 10.1038/s41598-022-05991-5] [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: 08/12/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
Drosophila melanogaster tumor models are growing in popularity, driven by the high degree of genetic as well as functional conservation to humans. The most common method to measure the effects of a tumor on distant organs of a human cancer patient is to use computed tomography (CT), often used in diagnosing cachexia, a debilitating cancer-induced syndrome most visibly characterized by loss of muscle mass. Successful application of high resolution micro-CT scanning of D. melanogaster was recently reported and we here present the segmentation of all visible larval organs at several stages of tumor development. We previously showed the strong expected reduction in muscle mass as the tumor develops, and we here report a surprisingly strong reduction also in gut and Malpighian tubules (kidney) volume. Time-point of tumor development was found to have a stronger correlation to cachectic organ volume loss than tumor volume, giving support to the previously proposed idea that tumor size does not directly determine degree of cachexia.
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