1
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Esbin MN, Dahal L, Fan VB, McKenna J, Yin E, Darzacq X, Tjian R. TFEB controls expression of human syncytins during cell-cell fusion. Genes Dev 2024; 38:718-737. [PMID: 39168638 PMCID: PMC11444194 DOI: 10.1101/gad.351633.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024]
Abstract
During human development, a temporary organ is formed, the placenta, which invades the uterine wall to support nutrient, oxygen, and waste exchange between the mother and fetus until birth. Most of the human placenta is formed by a syncytial villous structure lined by syncytialized trophoblasts, a specialized cell type that forms via cell-cell fusion of underlying progenitor cells. Genetic and functional studies have characterized the membrane protein fusogens Syncytin-1 and Syncytin-2, both of which are necessary and sufficient for human trophoblast cell-cell fusion. However, identification and characterization of upstream transcriptional regulators regulating their expression have been limited. Here, using CRISPR knockout in an in vitro cellular model of syncytiotrophoblast development (BeWo cells), we found that the transcription factor TFEB, mainly known as a regulator of autophagy and lysosomal biogenesis, is required for cell-cell fusion of syncytiotrophoblasts. TFEB translocates to the nucleus, exhibits increased chromatin interactions, and directly binds the Syncytin-1 and Syncytin-2 promoters to control their expression during differentiation. Although TFEB appears to play a critical role in syncytiotrophoblast differentiation, ablation of TFEB largely does not affect lysosomal gene expression or lysosomal biogenesis in differentiating BeWo cells, suggesting a previously uncharacterized role for TFEB in controlling the expression of human syncytins.
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Affiliation(s)
- Meagan N Esbin
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA;
| | - Liza Dahal
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - Vinson B Fan
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - Joey McKenna
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - Eric Yin
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - Xavier Darzacq
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA
| | - Robert Tjian
- Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, California 94720, USA;
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, USA
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2
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Patel AA, Kim H, Ramesh R, Marquez A, Faraj MM, Antikainen H, Lee AS, Torres A, Khawaja IM, Heffernan C, Bonder EM, Maurel P, Svaren J, Son YJ, Dobrowolski R, Kim HA. TFEB/3 Govern Repair Schwann Cell Generation and Function Following Peripheral Nerve Injury. J Neurosci 2024; 44:e0198242024. [PMID: 39054068 PMCID: PMC11358533 DOI: 10.1523/jneurosci.0198-24.2024] [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: 01/24/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 07/27/2024] Open
Abstract
TFEB and TFE3 (TFEB/3), key regulators of lysosomal biogenesis and autophagy, play diverse roles depending on cell type. This study highlights a hitherto unrecognized role of TFEB/3 crucial for peripheral nerve repair. Specifically, they promote the generation of progenitor-like repair Schwann cells after axonal injury. In Schwann cell-specific TFEB/3 double knock-out mice of either sex, the TFEB/3 loss disrupts the transcriptomic reprogramming that is essential for the formation of repair Schwann cells. Consequently, mutant mice fail to populate the injured nerve with repair Schwann cells and exhibit defects in axon regrowth, target reinnervation, and functional recovery. TFEB/3 deficiency inhibits the expression of injury-responsive repair Schwann cell genes, despite the continued expression of c-jun, a previously identified regulator of repair Schwann cell function. TFEB/3 binding motifs are enriched in the enhancer regions of injury-responsive genes, suggesting their role in repair gene activation. Autophagy-dependent myelin breakdown is not impaired despite TFEB/3 deficiency. These findings underscore a unique role of TFEB/3 in adult Schwann cells that is required for proper peripheral nerve regeneration.
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Affiliation(s)
- Akash A Patel
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Hyukmin Kim
- Shriners Hospitals Pediatric Research Center and Department of Neural Science, Temple University, Philadelphia, Pennsylvania 19140
| | - Raghu Ramesh
- Waisman Center, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Comparative Biomedical Sciences Graduate Program, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706
| | - Anthony Marquez
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Moler M Faraj
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Henri Antikainen
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Andrew S Lee
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Adriana Torres
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Imran M Khawaja
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Corey Heffernan
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Patrice Maurel
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - John Svaren
- Waisman Center, University of Wisconsin-Madison, Madison, Wisconsin 53705
- Comparative Biomedical Sciences Graduate Program, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706
- Department of Comparative Biosciences, School of Veterinary Medicine University of Wisconsin-Madison, Madison, Wisconsin 53705
| | - Young-Jin Son
- Shriners Hospitals Pediatric Research Center and Department of Neural Science, Temple University, Philadelphia, Pennsylvania 19140
- Department of Anatomy and Cell Biology, Temple University, Philadelphia, Pennsylvania 19140
| | - Radek Dobrowolski
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Haesun A Kim
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
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3
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Münchhalfen M, Görg R, Haberl M, Löber J, Willenbrink J, Schwarzt L, Höltermann C, Ickes C, Hammermann L, Kus J, Chapuy B, Ballabio A, Reichardt SD, Flügel A, Engels N, Wienands J. TFEB activation hallmarks antigenic experience of B lymphocytes and directs germinal center fate decisions. Nat Commun 2024; 15:6971. [PMID: 39138218 PMCID: PMC11322606 DOI: 10.1038/s41467-024-51166-3] [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: 03/28/2024] [Accepted: 07/31/2024] [Indexed: 08/15/2024] Open
Abstract
Ligation of the B cell antigen receptor (BCR) initiates humoral immunity. However, BCR signaling without appropriate co-stimulation commits B cells to death rather than to differentiation into immune effector cells. How BCR activation depletes potentially autoreactive B cells while simultaneously primes for receiving rescue and differentiation signals from cognate T lymphocytes remains unknown. Here, we use a mass spectrometry-based proteomic approach to identify cytosolic/nuclear shuttling elements and uncover transcription factor EB (TFEB) as a central BCR-controlled rheostat that drives activation-induced apoptosis, and concurrently promotes the reception of co-stimulatory rescue signals by supporting B cell migration and antigen presentation. CD40 co-stimulation prevents TFEB-driven cell death, while enhancing and prolonging TFEB's nuclear residency, which hallmarks antigenic experience also of memory B cells. In mice, TFEB shapes the transcriptional landscape of germinal center B cells. Within the germinal center, TFEB facilitates the dark zone entry of light-zone-residing centrocytes through regulation of chemokine receptors and, by balancing the expression of Bcl-2/BH3-only family members, integrates antigen-induced apoptosis with T cell-provided CD40 survival signals. Thus, TFEB reprograms antigen-primed germinal center B cells for cell fate decisions.
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Affiliation(s)
- Matthias Münchhalfen
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Richard Görg
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Michael Haberl
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Center Göttingen, Göttingen, Germany
| | - Jens Löber
- Department of Medical Hematology and Oncology, University Medical Center Göttingen, Göttingen, Germany
- Department of Hematology, Oncology, and Tumor Immunology, Charité, Campus Benjamin Franklin, University Medical Center Berlin, Berlin, Germany
| | - Jakob Willenbrink
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Laura Schwarzt
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Charlotte Höltermann
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Christian Ickes
- Institute of Cardiovascular Physiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
| | - Leonard Hammermann
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Center Göttingen, Göttingen, Germany
| | - Jan Kus
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Björn Chapuy
- Department of Medical Hematology and Oncology, University Medical Center Göttingen, Göttingen, Germany
- Department of Hematology, Oncology, and Tumor Immunology, Charité, Campus Benjamin Franklin, University Medical Center Berlin, Berlin, Germany
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Naples, Italy
- Department of Translational Medical Sciences, Federico II University, Naples, Italy
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, USA
| | - Sybille D Reichardt
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Alexander Flügel
- Institute for Neuroimmunology and Multiple Sclerosis Research, University Medical Center Göttingen, Göttingen, Germany
| | - Niklas Engels
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany
| | - Jürgen Wienands
- Institute of Cellular & Molecular Immunology, University Medical Center Göttingen, Göttingen, Germany.
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4
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Honwad HH, Najibi M, Koscso B, Bogunovic M, Irazoqui JE. TFEB-Mediated Pro-inflammatory Response in Murine Macrophages Induced by Acute Alpha7 Nicotinic Receptor Activation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.26.577408. [PMID: 39211236 PMCID: PMC11361017 DOI: 10.1101/2024.01.26.577408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Transcription factors TFEB and TFE3 are crucial for regulating autophagy, lysosomal biogenesis, and lipid metabolism, and have significant roles in macrophage function and innate immunity. The alpha7 nicotinic acetylcholine receptor (α7nAChR), a ligand-gated Ca 2+ channel known for its therapeutic potential in neurological and inflammatory disorders, has been implicated in modulating immune responses by modulating macrophage function. Stimulation of α7nAChR with chemical agonists has been claimed to activate TFEB in pancreatic acinar cells and neurons. However, the impact of α7nAChR activation on TFEB and TFE3 in macrophages remained unknown, posing an important question due to the potential implications for inflammation regulation. This study investigates the effects of acute α7nAChR activation on TFEB-mediated responses in murine macrophages using the specific agonist PNU-282987. We demonstrate that α7nAChR stimulation triggers TFEB nuclear translocation and lysosomal expansion. Surprisingly, PNU-282987 induces a broad pro-inflammatory gene signature without concomitant cytokine secretion, suggesting an uncoupling of gene expression from cytokine release. Mechanistically, TFEB activation requires the lysosomal Ca 2+ exporter MCOLN1 and the Ca 2+ -dependent phosphatase PPP3/calcineurin. Additionally, PNU-282987 elevates reactive oxygen species (ROS) levels, and ROS are involved in TFEB activation by PNU-282987. Notably, even with α7nAChR deletion, compensatory ROS-mediated TFEB activation persists, suggesting the involvement of additional nicotinic receptors. Our findings reveal a novel α7nAChR-TFEB signaling axis in macrophages, offer new insights into the cholinergic regulation of immune responses, establish a baseline for comparison with disease states, and identify potential therapeutic targets for modulating inflammation.
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5
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Cao B, Chen X, Li Y, Zhou T, Chen N, Guo Y, Zhao M, Guo C, Shi Y, Wang Q, Du X, Zhang L, Li Y. PDCD4 triggers α-synuclein accumulation and motor deficits via co-suppressing TFE3 and TFEB translation in a model of Parkinson's disease. NPJ Parkinsons Dis 2024; 10:146. [PMID: 39107320 PMCID: PMC11303393 DOI: 10.1038/s41531-024-00760-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024] Open
Abstract
TFE3 and TFEB, as the master regulators of lysosome biogenesis and autophagy, are well characterized to enhance the synaptic protein α-synuclein degradation in protecting against Parkinson's disease (PD) and their levels are significantly decreased in the brain of PD patients. However, how TFE3 and TFEB are regulated during PD pathogenesis remains largely vague. Herein, we identified that programmed cell death 4 (PDCD4) promoted pathologic α-synuclein accumulation to facilitate PD development via suppressing both TFE3 and TFEB translation. Conversely, PDCD4 deficiency significantly augmented global and nuclear TFE3 and TFEB distributions to alleviate neurodegeneration in a mouse model of PD with overexpressing α-synuclein in the striatum. Mechanistically, like TFEB as we reported before, PDCD4 also suppressed TFE3 translation, rather than influencing its transcription and protein stability, to restrain its nuclear translocation and lysosomal functions, eventually leading to α-synuclein aggregation. We proved that the two MA3 domains of PDCD4 mediated the translational suppression of TFE3 through binding to its 5'-UTR of mRNA in an eIF-4A dependent manner. Based on this, we developed a blood-brain barrier penetrating RVG polypeptide modified small RNA drug against pdcd4 to efficiently prevent α-synuclein neurodegeneration in improving PD symptoms by intraperitoneal injections. Together, we suggest PDCD4 as a PD-risk protein to facilitate α-synuclein neurodegeneration via suppressing TFE3 and TFEB translation and further provide a potential small RNA drug against pdcd4 to treat PD by intraperitoneal injections.
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Affiliation(s)
- Baihui Cao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiaotong Chen
- Department of Immunology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Yubin Li
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tian Zhou
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Nuo Chen
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yaxin Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ming Zhao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chun Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yongyu Shi
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qun Wang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xuexiang Du
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lining Zhang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Yan Li
- Department of Pathogen Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
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6
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Brunialti E, Rizzi N, Pinto-Costa R, Villa A, Panzeri A, Meda C, Rebecchi M, Di Monte DA, Ciana P. Design and validation of a reporter mouse to study the dynamic regulation of TFEB and TFE3 activity through in vivo imaging techniques. Autophagy 2024; 20:1879-1894. [PMID: 38522425 PMCID: PMC11262230 DOI: 10.1080/15548627.2024.2334111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 03/18/2024] [Indexed: 03/26/2024] Open
Abstract
TFEB and TFE3 belong to the MiT/TFE family of transcription factors that bind identical DNA responsive elements in the regulatory regions of target genes. They are involved in regulating lysosomal biogenesis, function, exocytosis, autophagy, and lipid catabolism. Precise control of TFEB and TFE3 activity is crucial for processes such as senescence, stress response, energy metabolism, and cellular catabolism. Dysregulation of these factors is implicated in various diseases, thus researchers have explored pharmacological approaches to modulate MiT/TFE activity, considering these transcription factors as potential therapeutic targets. However, the physiological complexity of their functions and the lack of suitable in vivo tools have limited the development of selective MiT/TFE modulating agents. Here, we have created a reporter-based biosensor, named CLEARoptimized, facilitating the pharmacological profiling of TFEB- and TFE3-mediated transcription. This innovative tool enables the measurement of TFEB and TFE3 activity in living cells and mice through imaging and biochemical techniques. CLEARoptimized consists of a promoter with six coordinated lysosomal expression and regulation motifs identified through an in-depth bioinformatic analysis of the promoters of 128 TFEB-target genes. The biosensor drives the expression of luciferase and tdTomato reporter genes, allowing the quantification of TFEB and TFE3 activity in cells and in animals through optical imaging and biochemical assays. The biosensor's validity was confirmed by modulating MiT/TFE activity in both cell culture and reporter mice using physiological and pharmacological stimuli. Overall, this study introduces an innovative tool for studying autophagy and lysosomal pathway modulation at various biological levels, from individual cells to the entire organism.Abbreviations: CLEAR: coordinated lysosomal expression and regulation; MAR: matrix attachment regions; MiT: microphthalmia-associated transcription factor; ROI: region of interest; TBS: tris-buffered saline; TF: transcription factor; TFE3: transcription factor binding to IGHM enhancer 3; TFEB: transcription factor EB; TH: tyrosine hydroxylase; TK: thymidine kinase; TSS: transcription start site.
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Affiliation(s)
| | | | - Rita Pinto-Costa
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Alessandro Villa
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Alessia Panzeri
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Clara Meda
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Monica Rebecchi
- Department of Health Sciences, University of Milan, Milan, Italy
| | | | - Paolo Ciana
- Department of Health Sciences, University of Milan, Milan, Italy
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7
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Cai R, Scott O, Ye G, Le T, Saran E, Kwon W, Inpanathan S, Sayed BA, Botelho RJ, Saric A, Uderhardt S, Freeman SA. Pressure sensing of lysosomes enables control of TFEB responses in macrophages. Nat Cell Biol 2024; 26:1247-1260. [PMID: 38997458 DOI: 10.1038/s41556-024-01459-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 06/11/2024] [Indexed: 07/14/2024]
Abstract
Polymers are endocytosed and hydrolysed by lysosomal enzymes to generate transportable solutes. While the transport of diverse organic solutes across the plasma membrane is well studied, their necessary ongoing efflux from the endocytic fluid into the cytosol is poorly appreciated by comparison. Myeloid cells that employ specialized types of endocytosis, that is, phagocytosis and macropinocytosis, are highly dependent on such transport pathways to prevent the build-up of hydrostatic pressure that otherwise offsets lysosomal dynamics including vesiculation, tubulation and fission. Without undergoing rupture, we found that lysosomes incurring this pressure owing to defects in solute efflux, are unable to retain luminal Na+, which collapses its gradient with the cytosol. This cation 'leak' is mediated by pressure-sensitive channels resident to lysosomes and leads to the inhibition of mTORC1, which is normally activated by Na+-coupled amino acid transporters driven by the Na+ gradient. As a consequence, the transcription factors TFEB/TFE3 are made active in macrophages with distended lysosomes. In addition to their role in lysosomal biogenesis, TFEB/TFE3 activation causes the release of MCP-1/CCL2. In catabolically stressed tissues, defects in efflux of solutes from the endocytic pathway leads to increased monocyte recruitment. Here we propose that macrophages respond to a pressure-sensing pathway on lysosomes to orchestrate lysosomal biogenesis as well as myeloid cell recruitment.
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Affiliation(s)
- Ruiqi Cai
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ori Scott
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Gang Ye
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Trieu Le
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ekambir Saran
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Whijin Kwon
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Subothan Inpanathan
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Blayne A Sayed
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Roberto J Botelho
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Amra Saric
- Neurosciences and Cellular and Structural Biology Division, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
- Program in Neurosciences and Mental Health, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Stefan Uderhardt
- Department of Internal Medicine, Rheumatology and Immunology, Universitätsklinikum Erlangen, Friedrich-Alexander University Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie, Universitätsklinikum Erlangen, Friedrich-Alexander University Erlangen, Erlangen, Germany
- Exploratory Research Unit, Optical Imaging Centre Erlangen, Friedrich-Alexander University Erlangen, Erlangen, Germany
| | - Spencer A Freeman
- Program in Cell Biology and Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada.
- Department of Biochemistry, University of Toronto, Toronto, Ontario, Canada.
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8
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Ghosh S, Sharma R, Bammidi S, Koontz V, Nemani M, Yazdankhah M, Kedziora KM, Stolz DB, Wallace CT, Yu-Wei C, Franks J, Bose D, Shang P, Ambrosino HM, Dutton JR, Geng Z, Montford J, Ryu J, Rajasundaram D, Hose S, Sahel JA, Puertollano R, Finkel T, Zigler JS, Sergeev Y, Watkins SC, Goetzman ES, Ferrington DA, Flores-Bellver M, Kaarniranta K, Sodhi A, Bharti K, Handa JT, Sinha D. The AKT2/SIRT5/TFEB pathway as a potential therapeutic target in non-neovascular AMD. Nat Commun 2024; 15:6150. [PMID: 39034314 PMCID: PMC11271488 DOI: 10.1038/s41467-024-50500-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: 08/18/2023] [Accepted: 07/10/2024] [Indexed: 07/23/2024] Open
Abstract
Non-neovascular or dry age-related macular degeneration (AMD) is a multi-factorial disease with degeneration of the aging retinal-pigmented epithelium (RPE). Lysosomes play a crucial role in RPE health via phagocytosis and autophagy, which are regulated by transcription factor EB/E3 (TFEB/E3). Here, we find that increased AKT2 inhibits PGC-1α to downregulate SIRT5, which we identify as an AKT2 binding partner. Crosstalk between SIRT5 and AKT2 facilitates TFEB-dependent lysosomal function in the RPE. AKT2/SIRT5/TFEB pathway inhibition in the RPE induced lysosome/autophagy signaling abnormalities, disrupted mitochondrial function and induced release of debris contributing to drusen. Accordingly, AKT2 overexpression in the RPE caused a dry AMD-like phenotype in aging Akt2 KI mice, as evident from decline in retinal function. Importantly, we show that induced pluripotent stem cell-derived RPE encoding the major risk variant associated with AMD (complement factor H; CFH Y402H) express increased AKT2, impairing TFEB/TFE3-dependent lysosomal function. Collectively, these findings suggest that targeting the AKT2/SIRT5/TFEB pathway may be an effective therapy to delay the progression of dry AMD.
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Affiliation(s)
- Sayan Ghosh
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ruchi Sharma
- Ocular and Stem Cell Translational Research Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sridhar Bammidi
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Victoria Koontz
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Mihir Nemani
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Meysam Yazdankhah
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Katarzyna M Kedziora
- Department of Cell Biology, Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Donna Beer Stolz
- Department of Cell Biology, Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Callen T Wallace
- Department of Cell Biology, Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Cheng Yu-Wei
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Jonathan Franks
- Department of Cell Biology, Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Devika Bose
- Ocular and Stem Cell Translational Research Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | | | | | - James R Dutton
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Zhaohui Geng
- Stem Cell Institute, University of Minnesota, Minneapolis, MN, USA
| | - Jair Montford
- Ocular and Stem Cell Translational Research Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jiwon Ryu
- Ocular and Stem Cell Translational Research Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Dhivyaa Rajasundaram
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Stacey Hose
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - José-Alain Sahel
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
- Institut De La Vision, INSERM, CNRS, Sorbonne Université, Paris, France
| | - Rosa Puertollano
- Cell Biology and Physiology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Toren Finkel
- Aging Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - J Samuel Zigler
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yuri Sergeev
- Protein Biochemistry & Molecular Modeling Group, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Simon C Watkins
- Department of Cell Biology, Center for Biologic Imaging, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Eric S Goetzman
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Deborah A Ferrington
- Doheny Eye Institute, Pasadena, CA, USA
- Department of Ophthalmology, University of California Los Angeles, Los Angeles, CA, USA
| | - Miguel Flores-Bellver
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Kai Kaarniranta
- Department of Ophthalmology, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
| | - Akrit Sodhi
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kapil Bharti
- Ocular and Stem Cell Translational Research Section, National Eye Institute, National Institutes of Health, Bethesda, MD, USA.
| | - James T Handa
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Debasish Sinha
- Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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9
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Xiao Q, Wang J, Tian Q, Tian N, Tian Q, He X, Wang Y, Dong Z. Uric Acid Mitigates Cognitive Deficits via TFEB-Mediated Microglial Autophagy in Mice Models of Alzheimer's Disease. Mol Neurobiol 2024; 61:3678-3696. [PMID: 38008888 DOI: 10.1007/s12035-023-03818-6] [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: 09/15/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023]
Abstract
Clinical trials have demonstrated the potential neuroprotective effects of uric acid (UA) in Alzheimer's disease (AD). However, the specific mechanism underlying the neuroprotective effect of UA remains unclear. In the present study, we investigated the neuroprotective effect and underlying mechanism of UA in AD mouse models. Various behavioral tests including an elevated plus maze, Barnes maze, and Morris water maze were conducted to evaluate the impact of UA on cognitive function in β-amyloid (Aβ) microinjection and APP23/PS45 double transgenic mice models of AD. Immunohistochemical staining was employed to visualize pathological changes in the brains of AD model mice. Western blotting and immunofluorescence techniques were used to assess levels of autophagy-related proteins and transcription factor EB (TFEB)-related signaling pathways. BV2 cells were used to investigate the association between UA and microglial autophagy. We reported that UA treatment significantly alleviated memory decline in Aβ-induced AD model mice and APP23/PS45 double transgenic AD model mice. Furthermore, UA activated microglia and upregulated the autophagy-related proteins such as LC3II/I ratio, Beclin-1, and LAMP1 in the hippocampus of AD model mice. Similarly, UA protected BV2 cells from Aβ toxicity by upregulating the expressions of Beclin-1, LAMP1, and the LC3II/I ratio, whereas genetic inhibition of TFEB completely abolished these protective effects. Our results indicate that UA may serve as a novel activator of TFEB to induce microglia autophagy and facilitate Aβ degradation, thereby improving cognitive function in AD model mice. Therefore, these findings suggest that UA may be a novel therapeutic agent for AD treatment.
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Affiliation(s)
- Qian Xiao
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jiaojiao Wang
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qiuyun Tian
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Na Tian
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Qi Tian
- Department of Geratology, Chongqing Key Laboratory of Neurology, First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin He
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yutian Wang
- Brain Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Zhifang Dong
- Pediatric Research Institute, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China.
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10
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Zheng W, Chang IC, Limberis J, Budzik JM, Zha BS, Howard Z, Chen L, Ernst JD. Mycobacterium tuberculosis resides in lysosome-poor monocyte-derived lung cells during chronic infection. PLoS Pathog 2024; 20:e1012205. [PMID: 38701094 PMCID: PMC11095722 DOI: 10.1371/journal.ppat.1012205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/15/2024] [Accepted: 04/19/2024] [Indexed: 05/05/2024] Open
Abstract
Mycobacterium tuberculosis (Mtb) infects lung myeloid cells, but the specific Mtb-permissive cells and host mechanisms supporting Mtb persistence during chronic infection are incompletely characterized. We report that after the development of T cell responses, CD11clo monocyte-derived cells harbor more live Mtb than alveolar macrophages (AM), neutrophils, and CD11chi monocyte-derived cells. Transcriptomic and functional studies revealed that the lysosome pathway is underexpressed in this highly permissive subset, characterized by less lysosome content, acidification, and proteolytic activity than AM, along with less nuclear TFEB, a regulator of lysosome biogenesis. Mtb infection does not drive lysosome deficiency in CD11clo monocyte-derived cells but promotes recruitment of monocytes that develop into permissive lung cells, mediated by the Mtb ESX-1 secretion system. The c-Abl tyrosine kinase inhibitor nilotinib activates TFEB and enhances lysosome functions of macrophages in vitro and in vivo, improving control of Mtb infection. Our results suggest that Mtb exploits lysosome-poor lung cells for persistence and targeting lysosome biogenesis is a potential host-directed therapy for tuberculosis.
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Affiliation(s)
- Weihao Zheng
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - I-Chang Chang
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - Jason Limberis
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - Jonathan M. Budzik
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - Beth Shoshana Zha
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - Zachary Howard
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - Lucas Chen
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
| | - Joel D. Ernst
- Division of Experimental Medicine, Department of Medicine, University of California, San Francisco, California, United States of America
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11
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Du X, Chen M, Fang Z, Shao Q, Yu H, Hao X, Gao X, Ju L, Li C, Yang Y, Song Y, Lei L, Liu G, Li X. Evaluation of hepatic AMPK, mTORC1, and autophagy-lysosomal pathway in cows with mild or moderate fatty liver. J Dairy Sci 2024; 107:3269-3279. [PMID: 37977448 DOI: 10.3168/jds.2023-24000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023]
Abstract
The aim of the present study was to investigate the activity of AMPK and mTORC1 as well as TFEB transcriptional activity and autophagy-lysosomal function in the liver of dairy cows with mild fatty liver (FL) and cows with moderate FL. Liver and blood samples were collected from healthy dairy cows (n = 10; hepatic triglyceride content <1% wet weight) and cows with mild FL (n = 10; 1% ≤ hepatic triglyceride content < 5% wet weight) or moderate FL (n = 10; 5% ≤ hepatic triglyceride content < 10% wet weight) that had a similar number of lactations (median = 3, range = 2-4) and days in milk (median = 6 d, range = 3-9). Blood parameters were determined using a Hitachi 3130 autoanalyzer with commercially available kits. Protein and mRNA abundances were determined using western blotting and quantitative real-time PCR, respectively. Activities of calcineurin and β-N-acetylglucosaminidase were measured with commercial assay kits. Data were analyzed using one-way ANOVA with subsequent Bonferroni correction. Blood concentrations of glucose were lower in moderate FL cows (3.03 ± 0.21 mM) than in healthy (3.71 ± 0.14 mM) and mild FL cows (3.76 ± 0.14 mM). Blood concentrations of β-hydroxybutyrate (BHB, 1.37 ± 0.15 mM in mild FL, 1.88 ± 0.17 mM in moderate FL) and free fatty acids (FFA, 0.69 ± 0.05 mM in mild FL, 0.96 ± 0.09 mM in moderate FL) were greater in FL cows than in healthy cows (BHB, 0.76 ± 0.12 mM; FFA, 0.42 ± 0.04 mM). Compared with healthy cows, phosphorylation of AMPK was greater and phosphorylation of its downstream target acetyl-CoA carboxylase 1 was lower in cows with mild and moderate FL. Phosphorylation of mTOR was lower in cows with mild FL compared with healthy cows. In cows with moderate FL, phosphorylation of mTOR and its downstream effectors was greater than in healthy cows and cows with mild FL. The mRNA abundance of TFEB was downregulated in cows with moderate FL compared with healthy cows and mild FL cows. In mild FL cows, the mRNA and protein abundances of TFEB were greater than in healthy cows. Compared with healthy cows, the mRNA abundances of autophagy markers sequestosome-1 and microtubule-associated protein 1 light chain 3-II, and the protein and mRNA abundances of lysosome-associated membrane protein 1 and cathepsin D were increased in mild FL cows but decreased in moderate FL cows. Compared with healthy cows, the mRNA abundance of mucolipin 1 and activities of β-N-acetylglucosaminidase and calcineurin were higher in cows with mild FL but lower in cows with moderate FL. These data demonstrate that hepatic AMPK signaling pathway, TFEB transcriptional activity, and autophagy-lysosomal function are increased in dairy cows with mild FL; the hepatic mTORC1 signaling pathway is inhibited in mild FL cows but activated in moderate FL cows; and activities of AMPK and TFEB as well as autophagy-lysosomal function are impaired in moderate FL cows.
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Affiliation(s)
- Xiliang Du
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Meng Chen
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Zhiyuan Fang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Qi Shao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Hao Yu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xue Hao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xinxing Gao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Lingxue Ju
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Chenxu Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yuting Yang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yuxiang Song
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Lin Lei
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Guowen Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xinwei Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China.
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12
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Zhang R, Yang H, Guo M, Niu S, Xue Y. Mitophagy and its regulatory mechanisms in the biological effects of nanomaterials. J Appl Toxicol 2024. [PMID: 38642013 DOI: 10.1002/jat.4609] [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: 02/18/2024] [Revised: 03/13/2024] [Accepted: 03/22/2024] [Indexed: 04/22/2024]
Abstract
Mitophagy is a selective cellular process critical for the removal of damaged mitochondria. It is essential in regulating mitochondrial number, ensuring mitochondrial functionality, and maintaining cellular equilibrium, ultimately influencing cell destiny. Numerous pathologies, such as neurodegenerative diseases, cardiovascular disorders, cancers, and various other conditions, are associated with mitochondrial dysfunctions. Thus, a detailed exploration of the regulatory mechanisms of mitophagy is pivotal for enhancing our understanding and for the discovery of novel preventive and therapeutic options for these diseases. Nanomaterials have become integral in biomedicine and various other sectors, offering advanced solutions for medical uses including biological imaging, drug delivery, and disease diagnostics and therapy. Mitophagy is vital in managing the cellular effects elicited by nanomaterials. This review provides a comprehensive analysis of the molecular mechanisms underpinning mitophagy, underscoring its significant influence on the biological responses of cells to nanomaterials. Nanoparticles can initiate mitophagy via various pathways, among which the PINK1-Parkin pathway is critical for cellular defense against nanomaterial-induced damage by promoting mitophagy. The role of mitophagy in biological effects was induced by nanomaterials, which are associated with alterations in Ca2+ levels, the production of reactive oxygen species, endoplasmic reticulum stress, and lysosomal damage.
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Affiliation(s)
- Rui Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Haitao Yang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Menghao Guo
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Shuyan Niu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
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13
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Zhu X, Wu Y, Li Y, Zhou X, Watzlawik JO, Chen YM, Raybuck AL, Billadeau D, Shapiro V, Springer W, Sun J, Boothby MR, Zeng H. Rag-GTPase-TFEB/TFE3 axis controls B cell mitochondrial fitness and humoral immunity independent of mTORC1. RESEARCH SQUARE 2024:rs.3.rs-3957355. [PMID: 38585731 PMCID: PMC10996787 DOI: 10.21203/rs.3.rs-3957355/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
During the humoral immune response, B cells undergo rapid metabolic reprogramming with a high demand for nutrients, which are vital to sustain the formation of the germinal centers (GCs). Rag-GTPases sense amino acid availability to modulate the mechanistic target of rapamycin complex 1 (mTORC1) pathway and suppress transcription factor EB (TFEB) and transcription factor enhancer 3 (TFE3), members of the microphthalmia (MiT/TFE) family of HLH-leucine zipper transcription factors. However, how Rag-GTPases coordinate amino acid sensing, mTORC1 activation, and TFEB/TFE3 activity in humoral immunity remains undefined. Here, we show that B cell-intrinsic Rag-GTPases are critical for the development and activation of B cells. RagA/RagB deficient B cells fail to form GCs, produce antibodies, and generate plasmablasts in both T-dependent (TD) and T-independent (TI) humoral immune responses. Deletion of RagA/RagB in GC B cells leads to abnormal dark zone (DZ) to light zone (LZ) ratio and reduced affinity maturation. Mechanistically, the Rag-GTPase complex constrains TFEB/TFE3 activity to prevent mitophagy dysregulation and maintain mitochondrial fitness in B cells, which are independent of canonical mTORC1 activation. TFEB/TFE3 deletion restores B cell development, GC formation in Peyer's patches and TI humoral immunity, but not TD humoral immunity in the absence of Rag-GTPases. Collectively, our data establish Rag-GTPase-TFEB/TFE3 axis as an mTORC1 independent mechanism to coordinating nutrient sensing and mitochondrial metabolism in B cells.
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Affiliation(s)
- Xingxing Zhu
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
| | - Yue Wu
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Yanfeng Li
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
| | - Xian Zhou
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
| | - Jens O Watzlawik
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Yin Maggie Chen
- Department of Immunology, Mayo Clinic Rochester, MN 55905, USA
| | - Ariel L Raybuck
- Department of Pathology, Microbiology & Immunology, Molecular Pathogenesis Division, Vanderbilt University Medical Center and School of Medicine, Nashville, TN 37232, USA
| | | | | | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Jie Sun
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Mark R Boothby
- Department of Pathology, Microbiology & Immunology, Molecular Pathogenesis Division, Vanderbilt University Medical Center and School of Medicine, Nashville, TN 37232, USA
| | - Hu Zeng
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
- Department of Immunology, Mayo Clinic Rochester, MN 55905, USA
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14
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Zhu X, Wu Y, Li Y, Zhou X, Watzlawik JO, Chen YM, Raybuck AL, Billadeau D, Shapiro V, Springer W, Sun J, Boothby MR, Zeng H. The nutrient-sensing Rag-GTPase complex in B cells controls humoral immunity via TFEB/TFE3-dependent mitochondrial fitness. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.26.582122. [PMID: 38463988 PMCID: PMC10925109 DOI: 10.1101/2024.02.26.582122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
During the humoral immune response, B cells undergo rapid metabolic reprogramming with a high demand for nutrients, which are vital to sustain the formation of the germinal centers (GCs). Rag-GTPases sense amino acid availability to modulate the mechanistic target of rapamycin complex 1 (mTORC1) pathway and suppress transcription factor EB (TFEB) and transcription factor enhancer 3 (TFE3), members of the microphthalmia (MiT/TFE) family of HLH-leucine zipper transcription factors. However, how Rag-GTPases coordinate amino acid sensing, mTORC1 activation, and TFEB/TFE3 activity in humoral immunity remains undefined. Here, we show that B cell-intrinsic Rag-GTPases are critical for the development and activation of B cells. RagA/RagB deficient B cells fail to form GCs, produce antibodies, and generate plasmablasts in both T-dependent (TD) and T-independent (TI) humoral immune responses. Deletion of RagA/RagB in GC B cells leads to abnormal dark zone (DZ) to light zone (LZ) ratio and reduced affinity maturation. Mechanistically, the Rag-GTPase complex constrains TFEB/TFE3 activity to prevent mitophagy dysregulation and maintain mitochondrial fitness in B cells, which are independent of canonical mTORC1 activation. TFEB/TFE3 deletion restores B cell development, GC formation in Peyer's patches and TI humoral immunity, but not TD humoral immunity in the absence of Rag-GTPases. Collectively, our data establish Rag-GTPase-TFEB/TFE3 pathway as an mTORC1 independent mechanism to coordinating nutrient sensing and mitochondrial metabolism in B cells.
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Affiliation(s)
- Xingxing Zhu
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
| | - Yue Wu
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Yanfeng Li
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
| | - Xian Zhou
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
| | - Jens O Watzlawik
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Yin Maggie Chen
- Department of Immunology, Mayo Clinic Rochester, MN 55905, USA
| | - Ariel L Raybuck
- Department of Pathology, Microbiology & Immunology, Molecular Pathogenesis Division, Vanderbilt University Medical Center and School of Medicine, Nashville, TN 37232, USA
| | | | | | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Jie Sun
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
| | - Mark R Boothby
- Department of Pathology, Microbiology & Immunology, Molecular Pathogenesis Division, Vanderbilt University Medical Center and School of Medicine, Nashville, TN 37232, USA
| | - Hu Zeng
- Division of Rheumatology, Department of Medicine, Mayo Clinic Rochester, MN 55905, USA
- Department of Immunology, Mayo Clinic Rochester, MN 55905, USA
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15
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Settembre C, Perera RM. Lysosomes as coordinators of cellular catabolism, metabolic signalling and organ physiology. Nat Rev Mol Cell Biol 2024; 25:223-245. [PMID: 38001393 DOI: 10.1038/s41580-023-00676-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2023] [Indexed: 11/26/2023]
Abstract
Every cell must satisfy basic requirements for nutrient sensing, utilization and recycling through macromolecular breakdown to coordinate programmes for growth, repair and stress adaptation. The lysosome orchestrates these key functions through the synchronised interplay between hydrolytic enzymes, nutrient transporters and signalling factors, which together enable metabolic coordination with other organelles and regulation of specific gene expression programmes. In this Review, we discuss recent findings on lysosome-dependent signalling pathways, focusing on how the lysosome senses nutrient availability through its physical and functional association with mechanistic target of rapamycin complex 1 (mTORC1) and how, in response, the microphthalmia/transcription factor E (MiT/TFE) transcription factors exert feedback regulation on lysosome biogenesis. We also highlight the emerging interactions of lysosomes with other organelles, which contribute to cellular homeostasis. Lastly, we discuss how lysosome dysfunction contributes to diverse disease pathologies and how inherited mutations that compromise lysosomal hydrolysis, transport or signalling components lead to multi-organ disorders with severe metabolic and neurological impact. A deeper comprehension of lysosomal composition and function, at both the cellular and organismal level, may uncover fundamental insights into human physiology and disease.
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Affiliation(s)
- Carmine Settembre
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy.
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy.
| | - Rushika M Perera
- Department of Anatomy, University of California at San Francisco, San Francisco, CA, USA.
- Department of Pathology, University of California at San Francisco, San Francisco, CA, USA.
- Helen Diller Family Comprehensive Cancer Center, University of California at San Francisco, San Francisco, CA, USA.
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16
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Shariq M, Khan MF, Raj R, Ahsan N, Kumar P. PRKAA2, MTOR, and TFEB in the regulation of lysosomal damage response and autophagy. J Mol Med (Berl) 2024; 102:287-311. [PMID: 38183492 DOI: 10.1007/s00109-023-02411-7] [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: 05/08/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 01/08/2024]
Abstract
Lysosomes function as critical signaling hubs that govern essential enzyme complexes. LGALS proteins (LGALS3, LGALS8, and LGALS9) are integral to the endomembrane damage response. If ESCRT fails to rectify damage, LGALS-mediated ubiquitination occurs, recruiting autophagy receptors (CALCOCO2, TRIM16, and SQSTM1) and VCP/p97 complex containing UBXN6, PLAA, and YOD1, initiating selective autophagy. Lysosome replenishment through biogenesis is regulated by TFEB. LGALS3 interacts with TFRC and TRIM16, aiding ESCRT-mediated repair and autophagy-mediated removal of damaged lysosomes. LGALS8 inhibits MTOR and activates TFEB for ATG and lysosomal gene transcription. LGALS9 inhibits USP9X, activates PRKAA2, MAP3K7, ubiquitination, and autophagy. Conjugation of ATG8 to single membranes (CASM) initiates damage repair mediated by ATP6V1A, ATG16L1, ATG12, ATG5, ATG3, and TECPR1. ATG8ylation or CASM activates the MERIT system (ESCRT-mediated repair, autophagy-mediated clearance, MCOLN1 activation, Ca2+ release, RRAG-GTPase regulation, MTOR modulation, TFEB activation, and activation of GTPase IRGM). Annexins ANAX1 and ANAX2 aid damage repair. Stress granules stabilize damaged membranes, recruiting FLCN-FNIP1/2, G3BP1, and NUFIP1 to inhibit MTOR and activate TFEB. Lysosomes coordinate the synergistic response to endomembrane damage and are vital for innate and adaptive immunity. Future research should unveil the collaborative actions of ATG proteins, LGALSs, TRIMs, autophagy receptors, and lysosomal proteins in lysosomal damage response.
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Affiliation(s)
- Mohd Shariq
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE.
| | - Mohammad Firoz Khan
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE.
| | - Reshmi Raj
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE
| | - Nuzhat Ahsan
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE
| | - Pramod Kumar
- Quantlase Imaging Laboratory, Quantlase Lab LLC, Unit 1-8, Masdar City, Abu Dhabi, UAE
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Amarnani A, Lopez-Ocasio M, Dilshat R, Anumukonda K, Davila J, Malakhov N, Huan C, Magnusdottir E, Steingrimsson E, Roman CA. Mitf regulates gene expression networks implicated in B cell homeostasis, germinal center responses, and tolerance. Front Immunol 2024; 15:1339325. [PMID: 38444862 PMCID: PMC10912573 DOI: 10.3389/fimmu.2024.1339325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/08/2024] [Indexed: 03/07/2024] Open
Abstract
Introduction The microphthalmia transcription factor Mitf has been shown to regulate B cell activation and tolerance. However, the underlying B cell-specific mechanisms responsible, and those that distinguish Mitf from closely related Mitf/TFE (MiT) transcription factors Tfe3, Tfeb, and Tfec, remain obscure. Methods Two complementary mouse models of Mitf and MiT deficiency were used: the Mitfmi-vga9/mi-vga9 systemic loss-of-function mutation, and B-cell specific MiT family inactivation via transgenic expression of a trans-dominant negative (TDN) protein (TDN-B). These models were employed to identify MiT family candidate target genes and pathways. Results Both models displayed spontaneous splenomegaly coincident with elevated plasma cell numbers, autoantibody titers, and proteinuria. These abnormalities appeared dependent on T helper cells, but independent of other non-B cell intrinsic effects of systemic Mitf inactivation. MiT inactivation in B cells augmented aspects of lupus-like autoimmune disease on the C57BL/6-Faslpr/lpr background. In both models, RNAseq of ex vivo resting B cells showed transcriptional upregulation of genes that control cell cycle, germinal center responses, and plasma cell differentiation. Among the genes strongly upregulated in both models were Socs6, Isp53 (Baiap1), S1pR2, and IgG2b/c. Mitf null B cells, but not TDN-B cells, showed evidence of type I interferon dysregulation. Discussion These studies clarify Mitf's role as 1) a key regulator of a B cell intrinsic germinal center program that influences self-tolerance through novel target genes, and 2) a regulator of systemic inflammatory processes that can impact the B cell microenvironment. This distinction of Mitf's function from that of related MiT transcription factors advances our understanding of B cell regulation and autoimmunity.
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Affiliation(s)
- Abhimanyu Amarnani
- Program in Molecular and Cellular Biology, School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- School of Medicine, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- Department of Medicine, Division of Rheumatology, New York University Langone Health, New York, NY, United States
| | - Maria Lopez-Ocasio
- Program in Molecular and Cellular Biology, School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, United States
| | - Ramile Dilshat
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Kamala Anumukonda
- Program in Molecular and Cellular Biology, School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- Anuko Tech Inc., Hillsborough, NJ, United States
| | - Jonathan Davila
- School of Medicine, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- Department of Urology, Northwell Health, Staten Island, NY, United States
| | - Nikita Malakhov
- School of Medicine, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- Department of Hematology and Oncology, NewYork-Presbyterian-Weill Cornell Medical Center, New York, NY, United States
| | - Chongmin Huan
- Program in Molecular and Cellular Biology, School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
| | - Erna Magnusdottir
- Department of Anatomy, Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Eirikur Steingrimsson
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Christopher A. Roman
- Program in Molecular and Cellular Biology, School of Graduate Studies, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- School of Medicine, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
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18
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Calabrese C, Nolte H, Pitman MR, Ganesan R, Lampe P, Laboy R, Ripa R, Fischer J, Polara R, Panda SK, Chipurupalli S, Gutierrez S, Thomas D, Pitson SM, Antebi A, Robinson N. Mitochondrial translocation of TFEB regulates complex I and inflammation. EMBO Rep 2024; 25:704-724. [PMID: 38263327 PMCID: PMC10897448 DOI: 10.1038/s44319-024-00058-0] [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: 03/03/2023] [Revised: 12/06/2023] [Accepted: 12/22/2023] [Indexed: 01/25/2024] Open
Abstract
TFEB is a master regulator of autophagy, lysosome biogenesis, mitochondrial metabolism, and immunity that works primarily through transcription controlled by cytosol-to-nuclear translocation. Emerging data indicate additional regulatory interactions at the surface of organelles such as lysosomes. Here we show that TFEB has a non-transcriptional role in mitochondria, regulating the electron transport chain complex I to down-modulate inflammation. Proteomics analysis reveals extensive TFEB co-immunoprecipitation with several mitochondrial proteins, whose interactions are disrupted upon infection with S. Typhimurium. High resolution confocal microscopy and biochemistry confirms TFEB localization in the mitochondrial matrix. TFEB translocation depends on a conserved N-terminal TOMM20-binding motif and is enhanced by mTOR inhibition. Within the mitochondria, TFEB and protease LONP1 antagonistically co-regulate complex I, reactive oxygen species and the inflammatory response. Consequently, during infection, lack of TFEB specifically in the mitochondria exacerbates the expression of pro-inflammatory cytokines, contributing to innate immune pathogenesis.
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Affiliation(s)
- Chiara Calabrese
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Hendrik Nolte
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Melissa R Pitman
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Raja Ganesan
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Philipp Lampe
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Raymond Laboy
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Roberto Ripa
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Julia Fischer
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
- Centre for Molecular Medicine Cologne, Cologne, Germany
| | - Ruhi Polara
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Sameer Kumar Panda
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Sandhya Chipurupalli
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Saray Gutierrez
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Daniel Thomas
- Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Stuart M Pitson
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia
| | - Adam Antebi
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Max Planck Institute for Biology of Ageing, Cologne, Germany.
- Adelaide Medical School, University of Adelaide, Adelaide, Australia.
| | - Nirmal Robinson
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany.
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, Australia.
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19
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Guan L, Guo L, Zhang H, Liu H, Zhou W, Zhai Y, Yan X, Men X, Peng L. Naringin Protects against Non-Alcoholic Fatty Liver Disease by Promoting Autophagic Flux and Lipophagy. Mol Nutr Food Res 2024; 68:e2200812. [PMID: 38054638 DOI: 10.1002/mnfr.202200812] [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: 11/21/2022] [Revised: 05/07/2023] [Indexed: 12/07/2023]
Abstract
The autophagic degradation of lipid droplets, termed lipophagy, is the main mechanism contributing to lipid consumption in hepatocytes. Identifying effective and safe natural compounds that target lipophagy to eliminate excess lipids may be a potential therapeutic strategy for non-alcoholic fatty liver disease (NAFLD). Here the effects of naringin on NAFLD and the underlying mechanisms involved are investigated. Naringin treatment effectively relieves HFD-induced hepatic steatosis in mice and inhibits PA-induced lipid accumulation in hepatocytes. Increased p62 and LC3-II levels are observed with excess lipid support autophagosome accumulation and impaired autophagic flux. Treatment with naringin restores TFEB-mediated lysosomal biogenesis, thereby promoting the fusion of autophagosomes and lysosomes, restoring impaired autophagic flux and further inducing lipophagy. However, the knockdown of TFEB in hepatocytes or the hepatocyte-specific knockout of TFEB in mice abrogates naringin-induced lipophagy, eliminating its therapeutic effect on hepatic steatosis. These results demonstrate that TFEB-mediated lysosomal biogenesis and subsequent lipophagy play essential roles in the ability of naringin to mitigate hepatic steatosis and suggest that naringin is a promising drug for treating NAFLD.
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Affiliation(s)
- Lingling Guan
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, 063000, China
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
- The fifth affiliated hospital, Guangzhou Medical University, Guangzhou, 510000, China
| | - Lan Guo
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, 063000, China
| | - Heng Zhang
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, 063000, China
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
| | - Hao Liu
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
| | - Wenling Zhou
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
| | - Yuanyuan Zhai
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
| | - Xu Yan
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
| | - Xiuli Men
- School of Basic Medical Sciences, North China University of Science and Technology, Tangshan, 063000, China
| | - Liang Peng
- Beijing Key Laboratory for Immune-Mediated Inflammatory Diseases, Institute of Medical Science, China-Japan Friendship Hospital, Beijing, 100000, China
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20
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Xu G, Peng H, Yao R, Yang Y, Li B. TFEB and TFE3 cooperate in regulating inorganic arsenic-induced autophagy-lysosome impairment and immuno-dysfunction in primary dendritic cells. Cell Biol Toxicol 2024; 40:4. [PMID: 38267572 PMCID: PMC10808261 DOI: 10.1007/s10565-024-09841-0] [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: 09/22/2023] [Accepted: 12/04/2023] [Indexed: 01/26/2024]
Abstract
Arsenic (As) is a prevalent and hazardous environmental toxicant associated with cancer and various health problems, which has been shown suppressive effects on dendritic cells (DCs). Autophagy is essential for the innate and adaptive immune responses of DCs, and the transcription factors TFEB and TFE3 are key regulators of autophagic and lysosomal target genes. However, the detrimental alterations of the autophagy-lysosome pathway in As-exposed DCs and the possible coordinating roles of TFEB and TFE3 in the immune dysfunction of this cell are less understood. In this paper, we found that As exposure significantly impaired lysosomal number, lysosomal acidic environment, and lysosomal membrane permeabilization, which might lead to blocked autophagic flux in cultured DCs. Furthermore, our results confirmed that TFEB or TFE3 knockdown exacerbated the disorders of lysosome and the blockade of autophagic flux in As-exposed DCs, and also enhanced the inhibitory expression of co-stimulatory molecules Cd80 and Cd83; adhesion molecule Icam1; cytokines TNF-α, IL-1β, and IL-6; chemokine receptor Ccr7; and antigen-presenting molecules MHC II and MHC I. By contrast, overexpression of TFEB or TFE3 partially alleviated the above-mentioned impairment of DCs by inorganic As exposure. In conclusion, these findings reveal a previously unappreciated inhibition of lysosome-mediated degradation and damage of lysosomal membrane integrity leading to dysregulated autophagy and impaired immune functions of DCs by arsenicals, and also suggest TFEB and TFE3 as potential therapeutic targets for ameliorating As toxicity.
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Affiliation(s)
- Guowei Xu
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Huaguang Peng
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Ran Yao
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Yuqing Yang
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Bing Li
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China.
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China.
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21
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Inpanathan S, Ospina-Escobar E, Li VC, Adamji Z, Lackraj T, Cho YH, Porco N, Choy CH, McPhee JB, Botelho RJ. Salmonella actively modulates TFEB in murine macrophages in a growth-phase and time-dependent manner. Microbiol Spectr 2024; 12:e0498122. [PMID: 38051049 PMCID: PMC10783059 DOI: 10.1128/spectrum.04981-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 11/01/2023] [Indexed: 12/07/2023] Open
Abstract
IMPORTANCE Activation of the host transcription factor TFEB helps mammalian cells adapt to stresses such as starvation and infection by upregulating lysosome, autophagy, and immuno-protective gene expression. Thus, TFEB is generally thought to protect host cells. However, it may also be that pathogenic bacteria like Salmonella orchestrate TFEB in a spatio-temporal manner to harness its functions to grow intracellularly. Indeed, the relationship between Salmonella and TFEB is controversial since some studies showed that Salmonella actively promotes TFEB, while others have observed that Salmonella degrades TFEB and that compounds that promote TFEB restrict bacterial growth. Our work provides a path to resolve these apparent discordant observations since we showed that stationary-grown Salmonella actively delays TFEB after infection, while late-log Salmonella is permissive of TFEB activation. Nevertheless, the exact function of this manipulation remains unclear, but conditions that erase the conditional control of TFEB by Salmonella may be detrimental to the microbe.
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Affiliation(s)
- Subothan Inpanathan
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Erika Ospina-Escobar
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Vanessa Cruz Li
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Zainab Adamji
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Tracy Lackraj
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Youn Hee Cho
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Natasha Porco
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Christopher H. Choy
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Joseph B. McPhee
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Roberto J. Botelho
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, Ontario, Canada
- Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, Ontario, Canada
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22
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Dörmann N, Hammer E, Struckmann K, Rüdebusch J, Bartels K, Wenzel K, Schulz J, Gross S, Schwanz S, Martin E, Fielitz B, Pablo Tortola C, Hahn A, Benkner A, Völker U, Felix SB, Fielitz J. Metabolic remodeling in cardiac hypertrophy and heart failure with reduced ejection fraction occurs independent of transcription factor EB in mice. Front Cardiovasc Med 2024; 10:1323760. [PMID: 38259303 PMCID: PMC10800928 DOI: 10.3389/fcvm.2023.1323760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/14/2023] [Indexed: 01/24/2024] Open
Abstract
Background A metabolic shift from fatty acid (FAO) to glucose oxidation (GO) occurs during cardiac hypertrophy (LVH) and heart failure with reduced ejection fraction (HFrEF), which is mediated by PGC-1α and PPARα. While the transcription factor EB (TFEB) regulates the expression of both PPARGC1A/PGC-1α and PPARA/PPARα, its contribution to metabolic remodeling is uncertain. Methods Luciferase assays were performed to verify that TFEB regulates PPARGC1A expression. Cardiomyocyte-specific Tfeb knockout (cKO) and wildtype (WT) male mice were subjected to 27G transverse aortic constriction or sham surgery for 21 and 56 days, respectively, to induce LVH and HFrEF. Echocardiographic, morphological, and histological analyses were performed. Changes in markers of cardiac stress and remodeling, metabolic shift and oxidative phosphorylation were investigated by Western blot analyses, mass spectrometry, qRT-PCR, and citrate synthase and complex II activity measurements. Results Luciferase assays revealed that TFEB increases PPARGC1A/PGC-1α expression, which was inhibited by class IIa histone deacetylases and derepressed by protein kinase D. At baseline, cKO mice exhibited a reduced cardiac function, elevated stress markers and a decrease in FAO and GO gene expression compared to WT mice. LVH resulted in increased cardiac remodeling and a decreased expression of FAO and GO genes, but a comparable decline in cardiac function in cKO compared to WT mice. In HFrEF, cKO mice showed an improved cardiac function, lower heart weights, smaller myocytes and a reduction in cardiac remodeling compared to WT mice. Proteomic analysis revealed a comparable decrease in FAO- and increase in GO-related proteins in both genotypes. A significant reduction in mitochondrial quality control genes and a decreased citrate synthase and complex II activities was observed in hearts of WT but not cKO HFrEF mice. Conclusions TFEB affects the baseline expression of metabolic and mitochondrial quality control genes in the heart, but has only minor effects on the metabolic shift in LVH and HFrEF in mice. Deletion of TFEB plays a protective role in HFrEF but does not affect the course of LVH. Further studies are needed to elucidate if TFEB affects the metabolic flux in stressed cardiomyocytes.
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Affiliation(s)
- Niklas Dörmann
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Elke Hammer
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Karlotta Struckmann
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Julia Rüdebusch
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Kirsten Bartels
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Kristin Wenzel
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Julia Schulz
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Stefan Gross
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Stefan Schwanz
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Elisa Martin
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Britta Fielitz
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Department of Internal Medicine B, Cardiology, University Medicine Greifswald, Greifswald, Germany
| | - Cristina Pablo Tortola
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Alexander Hahn
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Alexander Benkner
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
| | - Uwe Völker
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Stephan B. Felix
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Department of Internal Medicine B, Cardiology, University Medicine Greifswald, Greifswald, Germany
| | - Jens Fielitz
- DZHK (German Center for Cardiovascular Research), Partner Site Greifswald, Greifswald, Germany
- Department of Internal Medicine B, Cardiology, University Medicine Greifswald, Greifswald, Germany
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Charité Universitätsmedizin Berlin, Berlin, Germany
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23
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Liu C, Xu Y, Yang G, Tao Y, Chang J, Wang S, Cheung TH, Chen J, Zeng YA. Niche inflammatory signals control oscillating mammary regeneration and protect stem cells from cytotoxic stress. Cell Stem Cell 2024; 31:89-105.e6. [PMID: 38141612 DOI: 10.1016/j.stem.2023.11.012] [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: 04/16/2023] [Revised: 09/03/2023] [Accepted: 11/29/2023] [Indexed: 12/25/2023]
Abstract
Stem cells are known for their resilience and enhanced activity post-stress. The mammary gland undergoes frequent remodeling and is subjected to recurring stress during the estrus cycle, but it remains unclear how mammary stem cells (MaSCs) respond to the stress and contribute to regeneration. We discovered that cytotoxic stress-induced activation of CD11c+ ductal macrophages aids stem cell survival and prevents differentiation. These macrophages boost Procr+ MaSC activity through IL1β-IL1R1-NF-κB signaling during the estrus cycle in an oscillating manner. Deleting IL1R1 in MaSCs results in stem cell loss and skewed luminal differentiation. Moreover, under cytotoxic stress from the chemotherapy agent paclitaxel, ductal macrophages secrete higher IL1β levels, promoting MaSC survival and preventing differentiation. Inhibiting IL1R1 sensitizes MaSCs to paclitaxel. Our findings reveal a recurring inflammatory process that regulates regeneration, providing insights into stress-induced inflammation and its impact on stem cell survival, potentially affecting cancer therapy efficacy.
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Affiliation(s)
- Chunye Liu
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yishu Xu
- New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Guowei Yang
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Yu Tao
- New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Jiali Chang
- New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Shihui Wang
- New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Tom H Cheung
- Division of Life Science, Center for Stem Cell Research Center for Systems Biology and Human Health, the State Key Laboratory of Molecular Neuroscience, and Molecular Neuroscience Center, Hong Kong University of Science and Technology, Kowloon, Hong Kong, China; Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China; Guangdong Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, Shenzhen-Hong Kong Institute of Brain Science, Shenzhen 518057, Guangdong, China
| | - Jianfeng Chen
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.
| | - Yi Arial Zeng
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China; New Cornerstone Science Laboratory, State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.
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Shao J, Lang Y, Ding M, Yin X, Cui L. Transcription Factor EB: A Promising Therapeutic Target for Ischemic Stroke. Curr Neuropharmacol 2024; 22:170-190. [PMID: 37491856 PMCID: PMC10788889 DOI: 10.2174/1570159x21666230724095558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 07/27/2023] Open
Abstract
Transcription factor EB (TFEB) is an important endogenous defensive protein that responds to ischemic stimuli. Acute ischemic stroke is a growing concern due to its high morbidity and mortality. Most survivors suffer from disabilities such as numbness or weakness in an arm or leg, facial droop, difficulty speaking or understanding speech, confusion, impaired balance or coordination, or loss of vision. Although TFEB plays a neuroprotective role, its potential effect on ischemic stroke remains unclear. This article describes the basic structure, regulation of transcriptional activity, and biological roles of TFEB relevant to ischemic stroke. Additionally, we explore the effects of TFEB on the various pathological processes underlying ischemic stroke and current therapeutic approaches. The information compiled here may inform clinical and basic studies on TFEB, which may be an effective therapeutic drug target for ischemic stroke.
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Affiliation(s)
- Jie Shao
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Yue Lang
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Manqiu Ding
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Xiang Yin
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Li Cui
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
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25
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Kuczyńska M, Moskot M, Gabig-Cimińska M. Insights into Autophagic Machinery and Lysosomal Function in Cells Involved in the Psoriatic Immune-Mediated Inflammatory Cascade. Arch Immunol Ther Exp (Warsz) 2024; 72:aite-2024-0005. [PMID: 38409665 DOI: 10.2478/aite-2024-0005] [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: 10/06/2023] [Accepted: 12/08/2023] [Indexed: 02/28/2024]
Abstract
Impaired autophagy, due to the dysfunction of lysosomal organelles, contributes to maladaptive responses by pathways central to the immune system. Deciphering the immune-inflammatory ecosystem is essential, but remains a major challenge in terms of understanding the mechanisms responsible for autoimmune diseases. Accumulating evidence implicates a role that is played by a dysfunctional autophagy-lysosomal pathway (ALP) and an immune niche in psoriasis (Ps), one of the most common chronic skin diseases, characterized by the co-existence of autoimmune and autoinflammatory responses. The dysregulated autophagy associated with the defective lysosomal system is only one aspect of Ps pathogenesis. It probably cannot fully explain the pathomechanism involved in Ps, but it is likely important and should be seriously considered in Ps research. This review provides a recent update on discoveries in the field. Also, it sheds light on how the dysregulation of intracellular pathways, coming from modulated autophagy and endolysosomal trafficking, characteristic of key players of the disease, i.e., skin-resident cells, as well as circulating immune cells, may be responsible for immune impairment and the development of Ps.
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Affiliation(s)
- Martyna Kuczyńska
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
| | - Marta Moskot
- Department of Medical Biology and Genetics, University of Gdańsk, Gdańsk, Poland
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26
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Wang B, Martini-Stoica H, Qi C, Lu TC, Wang S, Xiong W, Qi Y, Xu Y, Sardiello M, Li H, Zheng H. TFEB-vacuolar ATPase signaling regulates lysosomal function and microglial activation in tauopathy. Nat Neurosci 2024; 27:48-62. [PMID: 37985800 DOI: 10.1038/s41593-023-01494-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 10/13/2023] [Indexed: 11/22/2023]
Abstract
Transcription factor EB (TFEB) mediates gene expression through binding to the coordinated lysosome expression and regulation (CLEAR) sequence. TFEB targets include subunits of the vacuolar ATPase (v-ATPase), which are essential for lysosome acidification. Single-nucleus RNA sequencing of wild-type and PS19 (Tau) transgenic mice expressing the P301S mutant tau identified three unique microglia subclusters in Tau mice that were associated with heightened lysosome and immune pathway genes. To explore the lysosome-immune relationship, we specifically disrupted the TFEB-v-ATPase signaling by creating a knock-in mouse line in which the CLEAR sequence of one of the v-ATPase subunits, Atp6v1h, was mutated. CLEAR mutant exhibited a muted response to TFEB, resulting in impaired lysosomal acidification and activity. Crossing the CLEAR mutant with Tau mice led to higher tau pathology but diminished microglia response. These microglia were enriched in a subcluster low in mTOR and HIF-1 pathways and were locked in a homeostatic state. Our studies demonstrate a physiological function of TFEB-v-ATPase signaling in maintaining lysosomal homeostasis and a critical role of the lysosome in mounting a microglia and immune response in tauopathy and Alzheimer's disease.
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Affiliation(s)
- Baiping Wang
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Heidi Martini-Stoica
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Medical Scientist Training Program, Baylor College of Medicine, Houston, TX, USA
- Department of Otolaryngology, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Chuangye Qi
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Tzu-Chiao Lu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Shuo Wang
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Wen Xiong
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Yanyan Qi
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Yin Xu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- School of Mental Health and Psychological Sciences, Anhui Medical University, Anhui, China
| | - Marco Sardiello
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Dan and Jan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX, USA
- Department of Pediatrics, Washington University School of Medicine, St Louis, MO, USA
| | - Hongjie Li
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Hui Zheng
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA.
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA.
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27
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Aufiero MA, Shlezinger N, Gjonbalaj M, Mills KAM, Ballabio A, Hohl TM. Dectin-1/CARD9 induction of the TFEB and TFE3 gene network is dispensable for phagocyte anti- Aspergillus activity in the lung. Infect Immun 2023; 91:e0021723. [PMID: 37861312 PMCID: PMC10652993 DOI: 10.1128/iai.00217-23] [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: 06/02/2023] [Accepted: 09/22/2023] [Indexed: 10/21/2023] Open
Abstract
Myeloid phagocytes of the respiratory immune system, such as neutrophils, monocytes, and alveolar macrophages, are essential for immunity to Aspergillus fumigatus, the most common etiologic agent of mold pneumonia worldwide. Following the engulfment of A. fumigatus conidia, fusion of the phagosome with the lysosome is a critical process for killing conidia. TFEB and TFE3 are transcription factors that regulate lysosomal biogenesis under stress and are activated by inflammatory stimuli in macrophages, but it is unknown whether TFEB and TFE3 contribute to anti-Aspergillus immunity during infection. We found that lung neutrophils express TFEB and TFE3, and their target genes were upregulated during A. fumigatus lung infection. In addition, A. fumigatus infection induced nuclear accumulation of TFEB and TFE3 in macrophages in a process regulated by Dectin-1 and CARD9. Genetic deletion of Tfeb and Tfe3 impaired macrophage killing of A. fumigatus conidia. However, in a murine immune-competent Aspergillus infection model with genetic deficiency of Tfeb and Tfe3 in hematopoietic cells, we surprisingly found that lung myeloid phagocytes had no defects in conidial phagocytosis or killing. Loss of TFEB and TFE3 did not impact murine survival or clearance of A. fumigatus from the lungs. Our findings indicate that myeloid phagocytes activate TFEB and TFE3 in response to A. fumigatus, and while this pathway promotes macrophage fungicidal activity in vitro, genetic loss can be functionally compensated in the lung, resulting in no measurable defect in fungal control and host survival.
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Affiliation(s)
- Mariano A. Aufiero
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Neta Shlezinger
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Mergim Gjonbalaj
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Kathleen A. M. Mills
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, New York, USA
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
- Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Naples, Italy
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Tobias M. Hohl
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, New York, USA
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28
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Vietsch EE, Latifi D, Verheij M, van der Oost EW, de Wilde RF, Haen R, van den Boom AL, Koerkamp BG, Doornebosch PG, van Verschuer VM, Ooms AH, Mohammad F, Willemsen M, Aerts JG, Krog RT, de Miranda NF, van den Bosch TP, Mueller YM, Katsikis PD, van Eijck CH. B cell immune profiles in dysbiotic vermiform appendixes of pancreatic cancer patients. Front Immunol 2023; 14:1230306. [PMID: 38022530 PMCID: PMC10667699 DOI: 10.3389/fimmu.2023.1230306] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) remains one of the deadliest solid tumors and is resistant to immunotherapy. B cells play an essential role in PDAC progression and immune responses, both locally and systemically. Moreover, increasing evidence suggests that microbial compositions inside the tumor, as well as in the oral cavity and the gut, are important factors in shaping the PDAC immune landscape. However, the gut-associated lymphoid tissue (GALT) has not previously been explored in PDAC patients. In this study, we analyzed healthy vermiform appendix (VA) from 20 patients with PDAC and 32 patients with colon diseases by gene expression immune profiling, flow cytometry analysis, and microbiome sequencing. We show that the VA GALT of PDAC patients exhibits markers of increased inflammation and cytotoxic cell activity. In contrast, B cell function is decreased in PDAC VA GALT based on gene expression profiling; B cells express significantly fewer MHC class II surface receptors, whereas plasma cells express the immune checkpoint molecule HLA-G. Additionally, the vermiform appendix microbiome of PDAC patients is enriched with Klebsiella pneumoniae, Bifidobacterium animalis, and Adlercreutzia equolifaciens, while certain commensals are depleted. Our findings may suggest impaired B cell function within the GALT of PDAC patients, which could potentially be linked to microbial dysbiosis. Additional investigations are imperative to validate our observations and explore these potential targets of future therapies.
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Affiliation(s)
- Eveline E. Vietsch
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Rotterdam, Netherlands
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Diba Latifi
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Maaike Verheij
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | | | | | - Roel Haen
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Anne Loes van den Boom
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, Netherlands
- Department of Surgery, Reinier de Graaf Hospital, Delft, Netherlands
| | - Bas Groot Koerkamp
- Department of Surgery, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | | | | | - Ariadne H.A.G. Ooms
- Department of Pathology, Pathan BV, Rotterdam, Netherlands
- Department of Pathology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Farzana Mohammad
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Marcella Willemsen
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Joachim G.J.V. Aerts
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Rotterdam, Netherlands
| | - Ricki T. Krog
- Department of Pathology, Leiden University Medical Center, Leiden, Netherlands
| | | | | | - Yvonne M. Mueller
- Department of Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Peter D. Katsikis
- Department of Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
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29
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Takla M, Keshri S, Rubinsztein DC. The post-translational regulation of transcription factor EB (TFEB) in health and disease. EMBO Rep 2023; 24:e57574. [PMID: 37728021 PMCID: PMC10626434 DOI: 10.15252/embr.202357574] [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: 06/01/2023] [Revised: 08/10/2023] [Accepted: 08/25/2023] [Indexed: 09/21/2023] Open
Abstract
Transcription factor EB (TFEB) is a basic helix-loop-helix leucine zipper transcription factor that acts as a master regulator of lysosomal biogenesis, lysosomal exocytosis, and macro-autophagy. TFEB contributes to a wide range of physiological functions, including mitochondrial biogenesis and innate and adaptive immunity. As such, TFEB is an essential component of cellular adaptation to stressors, ranging from nutrient deprivation to pathogenic invasion. The activity of TFEB depends on its subcellular localisation, turnover, and DNA-binding capacity, all of which are regulated at the post-translational level. Pathological states are characterised by a specific set of stressors, which elicit post-translational modifications that promote gain or loss of TFEB function in the affected tissue. In turn, the resulting increase or decrease in survival of the tissue in which TFEB is more or less active, respectively, may either benefit or harm the organism as a whole. In this way, the post-translational modifications of TFEB account for its otherwise paradoxical protective and deleterious effects on organismal fitness in diseases ranging from neurodegeneration to cancer. In this review, we describe how the intracellular environment characteristic of different diseases alters the post-translational modification profile of TFEB, enabling cellular adaptation to a particular pathological state.
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Affiliation(s)
- Michael Takla
- Department of Medical Genetics, Cambridge Institute for Medical Research (CIMR)University of CambridgeCambridgeUK
- UK Dementia Research Institute, Cambridge Institute for Medical Research (CIMR)University of CambridgeCambridgeUK
| | - Swati Keshri
- Department of Medical Genetics, Cambridge Institute for Medical Research (CIMR)University of CambridgeCambridgeUK
- UK Dementia Research Institute, Cambridge Institute for Medical Research (CIMR)University of CambridgeCambridgeUK
| | - David C Rubinsztein
- Department of Medical Genetics, Cambridge Institute for Medical Research (CIMR)University of CambridgeCambridgeUK
- UK Dementia Research Institute, Cambridge Institute for Medical Research (CIMR)University of CambridgeCambridgeUK
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30
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Li C, Yang Y, Li L, Chen Y, Shi Q, Zhang H, Zhang L, Chen Y, Li R, Li Z, Liu S, Ye Z, Zhao X, Liang X. Role of TFEB in regulation of the podocyte actin cytoskeleton. Arch Biochem Biophys 2023; 747:109752. [PMID: 37714254 DOI: 10.1016/j.abb.2023.109752] [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: 04/28/2023] [Revised: 08/16/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Podocyte injury is linked to the pathogenesis and progression of renal disease. The Transcription Factor EB (TFEB), a master regulator of the autophagy and lysosomal pathways, has been found to exert cell- and tissue-specific biological function. To explore TFEB function and underlying mechanisms in podocytes, a total of 4645 differentially expressed genes (DEGs) were detected in TFEB-knockdown mouse podocytes by transcriptome sequencing. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, and Ingenuity Pathway Analysis showed that, apart from the enrichment in autophagy and lysosomal pathways, DEGs were enriched in cytoskeleton structure (Actin Cytoskeleton, Focal Adhesion, and Adherens Junction), as well as cytoskeleton regulatory molecular signaling (Hippo and Rho GTPase Signaling). In vitro, TFEB knockdown resulted in podocyte cytoskeletal rearrangement, which was disorganized with cortical distribution of actin filaments. Further, TFEB knockdown decreased mRNA and protein levels of Synaptopodin and led to the rearrangement of Synaptopodin. Inhibition of TFEB decreased mRNA levels for proteins involved in actin cytoskeleton dynamics. Moreover, apoptosis was increased by TFEB knockdown in podocyte. In summary, this study initiated a comprehensive analysis of the role of TFEB in podocyte function and the potential underlying mechanisms, and identified a novel role for TFEB in regulation of the podocyte actin cytoskeleton.
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Affiliation(s)
- Cuili Li
- School of Medicine, South China University of Technology, Guangzhou, 510006, China; Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Yan Yang
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Luan Li
- School of Medicine, South China University of Technology, Guangzhou, 510006, China; Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Yingwen Chen
- School of Medicine, South China University of Technology, Guangzhou, 510006, China; Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Qingying Shi
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Hong Zhang
- School of Medicine, South China University of Technology, Guangzhou, 510006, China; Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Li Zhang
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Yuanhan Chen
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Ruizhao Li
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Zhilian Li
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Shuangxin Liu
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Zhiming Ye
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Xingchen Zhao
- Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - Xinling Liang
- School of Medicine, South China University of Technology, Guangzhou, 510006, China; Department of Nephrology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
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31
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Wen W, Zheng H, Li W, Huang G, Chen P, Zhu X, Cao Y, Li J, Huang X, Huang Y. Transcription factor EB: A potential integrated network regulator in metabolic-associated cardiac injury. Metabolism 2023; 147:155662. [PMID: 37517793 DOI: 10.1016/j.metabol.2023.155662] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/01/2023]
Abstract
With the worldwide pandemic of metabolic diseases, such as obesity, diabetes, and non-alcoholic fatty liver disease (NAFLD), cardiometabolic disease (CMD) has become a significant cause of death in humans. However, the pathophysiology of metabolic-associated cardiac injury is complex and not completely clear, and it is important to explore new strategies and targets for the treatment of CMD. A series of pathophysiological disturbances caused by metabolic disorders, such as insulin resistance (IR), hyperglycemia, hyperlipidemia, mitochondrial dysfunction, oxidative stress, inflammation, endoplasmic reticulum stress (ERS), autophagy dysfunction, calcium homeostasis imbalance, and endothelial dysfunction, may be related to the incidence and development of CMD. Transcription Factor EB (TFEB), as a transcription factor, has been extensively studied for its role in regulating lysosomal biogenesis and autophagy. Recently, the regulatory role of TFEB in other biological processes, including the regulation of glucose homeostasis, lipid metabolism, etc. has been gradually revealed. In this review, we will focus on the relationship between TFEB and IR, lipid metabolism, endothelial dysfunction, oxidative stress, inflammation, ERS, calcium homeostasis, autophagy, and mitochondrial quality control (MQC) and the potential regulatory mechanisms among them, to provide a comprehensive summary for TFEB as a potential new therapeutic target for CMD.
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Affiliation(s)
- Weixing Wen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Haoxiao Zheng
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Weiwen Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Guolin Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Peng Chen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaolin Zhu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Yue Cao
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Jiahuan Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaohui Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Yuli Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia; Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation Research, Guangzhou, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
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32
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Ko SH, Choi JH, Kim JM. Bacteroides fragilis Enterotoxin Induces Autophagy through an AMPK and FoxO3-Pathway, Leading to the Inhibition of Apoptosis in Intestinal Epithelial Cells. Toxins (Basel) 2023; 15:544. [PMID: 37755970 PMCID: PMC10535581 DOI: 10.3390/toxins15090544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/28/2023] Open
Abstract
Macroautophagy/autophagy is essential for preserving cellular homeostasis by recycling nutrients and removing spoiled or aged proteins and organelles. It also has an essential role in defense mechanisms against microbial infections. However, the role of autophagy in enterotoxigenic Bacteroides fragilis infection remains largely unknown. In this study, we explored the role of B. fragilis enterotoxin (BFT) in the autophagic process of intestinal epithelial cells (IECs). The LC3-I of human HCT-116 IECs was converted to LC3-II by BFT stimulation. In addition, BFT-exposed cells showed the decreased expression of p62 in a time-dependent manner and increased levels of ATG5 and ATG12 gradually. Evidence of an enhanced autophagic process was supported by autophagosomes co-localized with LC3-lysosome-associated protein 2 in BFT-stimulated cells. The AMP-activated protein kinase (AMPK) and Forkhead box O3 (FoxO3a) axis were required for BFT-induced autophagy activation. In contrast with the activation of autophagy at 3-6 h after BFT exposure, IECs induced apoptosis-related signals at 12-48 h. HCT-116 IECs suppressing the formation of autophagosomes significantly activated apoptosis signals instead of autophagy early after BFT exposure. These data suggest that BFT can activate autophagy through the AMPK-FoxO3a pathway and the autophagy may suppress apoptosis during early exposure of IECs to BFT.
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Affiliation(s)
- Su Hyuk Ko
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center, San Antonio, TX 78229, USA;
- Department of Cell Systems and Anatomy, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Jun Ho Choi
- Department of Microbiology, Hanyang University College of Medicine, Seoul 04763, Republic of Korea
| | - Jung Mogg Kim
- Department of Microbiology, Hanyang University College of Medicine, Seoul 04763, Republic of Korea
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Mutvei AP, Nagiec MJ, Blenis J. Balancing lysosome abundance in health and disease. Nat Cell Biol 2023; 25:1254-1264. [PMID: 37580388 DOI: 10.1038/s41556-023-01197-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 06/28/2023] [Indexed: 08/16/2023]
Abstract
Lysosomes are catabolic organelles that govern numerous cellular processes, including macromolecule degradation, nutrient signalling and ion homeostasis. Aberrant changes in lysosome abundance are implicated in human diseases. Here we outline the mechanisms of lysosome biogenesis and turnover, and discuss how changes in the lysosome pool impact physiological and pathophysiological processes.
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Affiliation(s)
- Anders P Mutvei
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet, Huddinge, Sweden.
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden.
| | - Michal J Nagiec
- Meyer Cancer Center and Department of Pharmacology, Weill Cornell Medical College, New York, NY, USA
| | - John Blenis
- Meyer Cancer Center and Department of Pharmacology, Weill Cornell Medical College, New York, NY, USA.
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34
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Zhang L, Li Z, Zhang L, Qin Y, Yu D. Dissecting the multifaced function of transcription factor EB (TFEB) in human diseases: From molecular mechanism to pharmacological modulation. Biochem Pharmacol 2023; 215:115698. [PMID: 37482200 DOI: 10.1016/j.bcp.2023.115698] [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: 05/09/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 07/25/2023]
Abstract
The transcription factor EB (TFEB) is a transcription factor of the MiT/TFE family that translocations from the cytoplasm to the nucleus in response to various stimuli, including lysosomal stress and nutrient starvation. By activating genes involved in lysosomal function, autophagy, and lipid metabolism, TFEB plays a crucial role in maintaining cellular homeostasis. Dysregulation of TFEB has been implicated in various diseases, including cancer, neurodegenerative diseases, metabolic diseases, cardiovascular diseases, infectious diseases, and inflammatory diseases. Therefore, modulating TFEB activity with agonists or inhibitors may have therapeutic potential. In this review, we reviewed the recently discovered regulatory mechanisms of TFEB and their impact on human diseases. Additionally, we also summarize the existing TFEB inhibitors and agonists (targeted and non-targeted) and discuss unresolved issues and future research directions in the field. In summary, this review sheds light on the crucial role of TFEB, which may pave the way for its translation from basic research to practical applications, bringing us closer to realizing the full potential of TFEB in various fields.
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Affiliation(s)
- Lijuan Zhang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China; Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Zhijia Li
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Lan Zhang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
| | - Yuan Qin
- The Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu 610031, China; Medical Research Center, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu 610031, China.
| | - Dongke Yu
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China; Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China.
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35
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Ghosh S, Sharma R, Bammidi S, Koontz V, Nemani M, Yazdankhah M, Kedziora KM, Wallace CT, Yu-Wei C, Franks J, Bose D, Rajasundaram D, Hose S, Sahel JA, Puertollano R, Finkel T, Zigler JS, Sergeev Y, Watkins SC, Goetzman ES, Flores-Bellver M, Kaarniranta K, Sodhi A, Bharti K, Handa JT, Sinha D. The AKT2/SIRT5/TFEB pathway as a potential therapeutic target in atrophic AMD. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.08.552343. [PMID: 37609254 PMCID: PMC10441325 DOI: 10.1101/2023.08.08.552343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Age-related macular degeneration (AMD), the leading cause of geriatric blindness, is a multi-factorial disease with retinal-pigmented epithelial (RPE) cell dysfunction as a central pathogenic driver. With RPE degeneration, lysosomal function is a core process that is disrupted. Transcription factors EB/E3 (TFEB/E3) tightly control lysosomal function; their disruption can cause aging disorders, such as AMD. Here, we show that induced pluripotent stem cells (iPSC)-derived RPE cells with the complement factor H variant [ CFH (Y402H)] have increased AKT2, which impairs TFEB/TFE3 nuclear translocation and lysosomal function. Increased AKT2 can inhibit PGC1α, which downregulates SIRT5, an AKT2 binding partner. SIRT5 and AKT2 co-regulate each other, thereby modulating TFEB-dependent lysosomal function in the RPE. Failure of the AKT2/SIRT5/TFEB pathway in the RPE induced abnormalities in the autophagy-lysosome cellular axis by upregulating secretory autophagy, thereby releasing a plethora of factors that likely contribute to drusen formation, a hallmark of AMD. Finally, overexpressing AKT2 in RPE cells in mice led to an AMD-like phenotype. Thus, targeting the AKT2/SIRT5/TFEB pathway could be a potential therapy for atrophic AMD.
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Yadavalli N, Ferguson SM. LRRK2 suppresses lysosome degradative activity in macrophages and microglia through MiT-TFE transcription factor inhibition. Proc Natl Acad Sci U S A 2023; 120:e2303789120. [PMID: 37487100 PMCID: PMC10400961 DOI: 10.1073/pnas.2303789120] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/12/2023] [Indexed: 07/26/2023] Open
Abstract
Cells maintain optimal levels of lysosome degradative activity to protect against pathogens, clear waste, and generate nutrients. Here, we show that LRRK2, a protein that is tightly linked to Parkinson's disease, negatively regulates lysosome degradative activity in macrophages and microglia via a transcriptional mechanism. Depletion of LRRK2 and inhibition of LRRK2 kinase activity enhanced lysosomal proteolytic activity and increased the expression of multiple lysosomal hydrolases. Conversely, the kinase hyperactive LRRK2 G2019S Parkinson's disease mutant suppressed lysosomal degradative activity and gene expression. We identified MiT-TFE transcription factors (TFE3, TFEB, and MITF) as mediators of LRRK2-dependent control of lysosomal gene expression. LRRK2 negatively regulated the abundance and nuclear localization of these transcription factors and their depletion prevented LRRK2-dependent changes in lysosome protein levels. These observations define a role for LRRK2 in controlling lysosome degradative activity and support a model wherein LRRK2 hyperactivity may increase Parkinson's disease risk by suppressing lysosome degradative activity.
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Affiliation(s)
- Narayana Yadavalli
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT06510
- Department of Neuroscience, Yale University School of Medicine, New Haven, CT06510
- Program in Cellular Neuroscience, Neurodegeneration and Repair, Yale University School of Medicine, New Haven, CT06510
- Wu Tsai Institute, Yale University School of Medicine, New Haven, CT06510
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD20815
| | - Shawn M. Ferguson
- Department of Cell Biology, Yale University School of Medicine, New Haven, CT06510
- Department of Neuroscience, Yale University School of Medicine, New Haven, CT06510
- Program in Cellular Neuroscience, Neurodegeneration and Repair, Yale University School of Medicine, New Haven, CT06510
- Wu Tsai Institute, Yale University School of Medicine, New Haven, CT06510
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD20815
- Kavli Institute for Neuroscience, Yale University School of Medicine, New Haven, CT06510
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Abokyi S, Ghartey-Kwansah G, Tse DYY. TFEB is a central regulator of the aging process and age-related diseases. Ageing Res Rev 2023; 89:101985. [PMID: 37321382 DOI: 10.1016/j.arr.2023.101985] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/25/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Abstract
Old age is associated with a greater burden of disease, including neurodegenerative disorders such as Alzheimer's disease and Parkinson's disease, as well as other chronic diseases. Coincidentally, popular lifestyle interventions, such as caloric restriction, intermittent fasting, and regular exercise, in addition to pharmacological interventions intended to protect against age-related diseases, induce transcription factor EB (TFEB) and autophagy. In this review, we summarize emerging discoveries that point to TFEB activity affecting the hallmarks of aging, including inhibiting DNA damage and epigenetic modifications, inducing autophagy and cell clearance to promote proteostasis, regulating mitochondrial quality control, linking nutrient-sensing to energy metabolism, regulating pro- and anti-inflammatory pathways, inhibiting senescence and promoting cell regenerative capacity. Furthermore, the therapeutic impact of TFEB activation on normal aging and tissue-specific disease development is assessed in the contexts of neurodegeneration and neuroplasticity, stem cell differentiation, immune responses, muscle energy adaptation, adipose tissue browning, hepatic functions, bone remodeling, and cancer. Safe and effective strategies of activating TFEB hold promise as a therapeutic strategy for multiple age-associated diseases and for extending lifespan.
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Affiliation(s)
- Samuel Abokyi
- School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR of China; Research Centre for SHARP Vision, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR of China.
| | - George Ghartey-Kwansah
- Department of Biomedical Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Dennis Yan-Yin Tse
- School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR of China; Research Centre for SHARP Vision, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR of China; Centre for Eye and Vision Research, 17W Hong Kong Science Park, Hong Kong SAR of China.
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38
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Dang TT, Kim MJ, Lee YY, Le HT, Kim KH, Nam S, Hyun SH, Kim HL, Chung SW, Chung HT, Jho EH, Yoshida H, Kim K, Park CY, Lee MS, Back SH. Phosphorylation of EIF2S1 (eukaryotic translation initiation factor 2 subunit alpha) is indispensable for nuclear translocation of TFEB and TFE3 during ER stress. Autophagy 2023; 19:2111-2142. [PMID: 36719671 PMCID: PMC10283430 DOI: 10.1080/15548627.2023.2173900] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
There are diverse links between macroautophagy/autophagy pathways and unfolded protein response (UPR) pathways under endoplasmic reticulum (ER) stress conditions to restore ER homeostasis. Phosphorylation of EIF2S1/eIF2α is an important mechanism that can regulate all three UPR pathways through transcriptional and translational reprogramming to maintain cellular homeostasis and overcome cellular stresses. In this study, to investigate the roles of EIF2S1 phosphorylation in regulation of autophagy during ER stress, we used EIF2S1 phosphorylation-deficient (A/A) cells in which residue 51 was mutated from serine to alanine. A/A cells exhibited defects in several steps of autophagic processes (such as autophagosome and autolysosome formation) that are regulated by the transcriptional activities of the autophagy master transcription factors TFEB and TFE3 under ER stress conditions. EIF2S1 phosphorylation was required for nuclear translocation of TFEB and TFE3 during ER stress. In addition, EIF2AK3/PERK, PPP3/calcineurin-mediated dephosphorylation of TFEB and TFE3, and YWHA/14-3-3 dissociation were required for their nuclear translocation, but were insufficient to induce their nuclear retention during ER stress. Overexpression of the activated ATF6/ATF6α form, XBP1s, and ATF4 differentially rescued defects of TFEB and TFE3 nuclear translocation in A/A cells during ER stress. Consequently, overexpression of the activated ATF6 or TFEB form more efficiently rescued autophagic defects, although XBP1s and ATF4 also displayed an ability to restore autophagy in A/A cells during ER stress. Our results suggest that EIF2S1 phosphorylation is important for autophagy and UPR pathways, to restore ER homeostasis and reveal how EIF2S1 phosphorylation connects UPR pathways to autophagy.Abbreviations: A/A: EIF2S1 phosphorylation-deficient; ACTB: actin beta; Ad-: adenovirus-; ATF6: activating transcription factor 6; ATZ: SERPINA1/α1-antitrypsin with an E342K (Z) mutation; Baf A1: bafilomycin A1; BSA: bovine serum albumin; CDK4: cyclin dependent kinase 4; CDK6: cyclin dependent kinase 6; CHX: cycloheximide; CLEAR: coordinated lysosomal expression and regulation; Co-IP: coimmunoprecipitation; CTSB: cathepsin B; CTSD: cathepsin D; CTSL: cathepsin L; DAPI: 4',6-diamidino-2-phenylindole dihydrochloride; DMEM: Dulbecco's modified Eagle's medium; DMSO: dimethyl sulfoxide; DTT: dithiothreitol; EBSS: Earle's Balanced Salt Solution; EGFP: enhanced green fluorescent protein; EIF2S1/eIF2α: eukaryotic translation initiation factor 2 subunit alpha; EIF2AK3/PERK: eukaryotic translation initiation factor 2 alpha kinase 3; ER: endoplasmic reticulum; ERAD: endoplasmic reticulum-associated degradation; ERN1/IRE1α: endoplasmic reticulum to nucleus signaling 1; FBS: fetal bovine serum; gRNA: guide RNA; GSK3B/GSK3β: glycogen synthase kinase 3 beta; HA: hemagglutinin; Hep: immortalized hepatocyte; IF: immunofluorescence; IRES: internal ribosome entry site; KO: knockout; LAMP1: lysosomal associated membrane protein 1; LMB: leptomycin B; LPS: lipopolysaccharide; MAP1LC3A/B/LC3A/B: microtubule associated protein 1 light chain 3 alpha/beta; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; MEFs: mouse embryonic fibroblasts; MFI: mean fluorescence intensity; MTORC1: mechanistic target of rapamycin kinase complex 1; NES: nuclear export signal; NFE2L2/NRF2: NFE2 like bZIP transcription factor 2; OE: overexpression; PBS: phosphate-buffered saline; PLA: proximity ligation assay; PPP3/calcineurin: protein phosphatase 3; PTM: post-translational modification; SDS: sodium dodecyl sulfate; SDS-PAGE: sodium dodecyl sulfate-polyacrylamide gel electrophoresis; SEM: standard error of the mean; TEM: transmission electron microscopy; TFE3: transcription factor E3; TFEB: transcription factor EB; TFs: transcription factors; Tg: thapsigargin; Tm: tunicamycin; UPR: unfolded protein response; WB: western blot; WT: wild-type; Xbp1s: spliced Xbp1; XPO1/CRM1: exportin 1.
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Affiliation(s)
- Thao Thi Dang
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Mi-Jeong Kim
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Yoon Young Lee
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Hien Thi Le
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Kook Hwan Kim
- Severance Biomedical Research Institute, Yonsei University College of Medicine, 03722, Seoul, Korea
| | - Somi Nam
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Seung Hwa Hyun
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Hong Lim Kim
- Integrative Research Support Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Su Wol Chung
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Hun Taeg Chung
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Eek-Hoon Jho
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Hiderou Yoshida
- Department of Molecular Biochemistry, Graduate School of Life Science, University of Hyogo, 678-1297, Hyogo, Japan
| | - Kyoungmi Kim
- Department of Biomedical Sciences and Department of Physiology, Korea University College of Medicine, 02841, Seoul, Korea
| | - Chan Young Park
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Myung-Shik Lee
- Department of Integrated Biomedical Science & Division of Endocrinology, Department of Internal Medicine, SIMS (Soonchunhyang Institute of Medi-bio Science) & Soonchunhyang University Hospital, Soonchunhyang University, 31151, Cheonan, Korea
| | - Sung Hoon Back
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
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Domingues N, Marques ARA, Calado RDA, Ferreira IS, Ramos C, Ramalho J, Soares MIL, Pereira T, Oliveira L, Vicente JR, Wong LH, Simões ICM, Pinho E Melo TMVD, Peden A, Almeida CG, Futter CE, Puertollano R, Vaz WLC, Vieira OV. Oxidized cholesteryl ester induces exocytosis of dysfunctional lysosomes in lipidotic macrophages. Traffic 2023; 24:284-307. [PMID: 37129279 DOI: 10.1111/tra.12888] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/29/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
A key event in atherogenesis is the formation of lipid-loaded macrophages, lipidotic cells, which exhibit irreversible accumulation of undigested modified low-density lipoproteins (LDL) in lysosomes. This event culminates in the loss of cell homeostasis, inflammation, and cell death. Nevertheless, the exact chemical etiology of atherogenesis and the molecular and cellular mechanisms responsible for the impairment of lysosome function in plaque macrophages are still unknown. Here, we demonstrate that macrophages exposed to cholesteryl hemiazelate (ChA), one of the most prevalent products of LDL-derived cholesteryl ester oxidation, exhibit enlarged peripheral dysfunctional lysosomes full of undigested ChA and neutral lipids. Both lysosome area and accumulation of neutral lipids are partially irreversible. Interestingly, the dysfunctional peripheral lysosomes are more prone to fuse with the plasma membrane, secreting their undigested luminal content into the extracellular milieu with potential consequences for the pathology. We further demonstrate that this phenotype is mechanistically linked to the nuclear translocation of the MiT/TFE family of transcription factors. The induction of lysosome biogenesis by ChA appears to partially protect macrophages from lipid-induced cytotoxicity. In sum, our data show that ChA is involved in the etiology of lysosome dysfunction and promotes the exocytosis of these organelles. This latter event is a new mechanism that may be important in the pathogenesis of atherosclerosis.
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Affiliation(s)
- Neuza Domingues
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - André R A Marques
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Rita Diogo Almeida Calado
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Inês S Ferreira
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Cristiano Ramos
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - José Ramalho
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Maria I L Soares
- CQC and Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Telmo Pereira
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Luís Oliveira
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - José R Vicente
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Louise H Wong
- Department of Cell Biology, UCL Institute of Ophthalmology, London, UK
| | - Inês C M Simões
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | | | - Andrew Peden
- Department of Biomedical Science & Center for Membrane Interactions and Dynamics, University of Sheffield, UK
| | - Cláudia Guimas Almeida
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Clare E Futter
- Department of Cell Biology, UCL Institute of Ophthalmology, London, UK
| | - Rosa Puertollano
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, NIH, Bethesda, Maryland, USA
| | - Winchil L C Vaz
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Otília V Vieira
- iNOVA4Health, NOVA Medical School | Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisbon, Portugal
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40
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Zheng W, Chang IC, Limberis J, Budzik J, Zha BS, Howard Z, Chen L, Ernst J. Mycobacterium tuberculosis resides in lysosome-poor monocyte-derived lung cells during chronic infection. RESEARCH SQUARE 2023:rs.3.rs-3049913. [PMID: 37398178 PMCID: PMC10312915 DOI: 10.21203/rs.3.rs-3049913/v1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Mycobacterium tuberculosis (Mtb) persists in lung myeloid cells during chronic infection. However, the mechanisms allowing Mtb to evade elimination are not fully understood. Here, we determined that in chronic phase, CD11clo monocyte-derived lung cells termed MNC1 (mononuclear cell subset 1), harbor more live Mtb than alveolar macrophages (AM), neutrophils, and less permissive CD11chi MNC2. Transcriptomic and functional studies of sorted cells revealed that the lysosome biogenesis pathway is underexpressed in MNC1, which have less lysosome content, acidification, and proteolytic activity than AM, and less nuclear TFEB, a master regulator of lysosome biogenesis. Mtb infection does not drive lysosome deficiency in MNC1. Instead, Mtb recruits MNC1 and MNC2 to the lungs for its spread from AM to these cells via its ESX-1 secretion system. The c-Abl tyrosine kinase inhibitor nilotinib activates TFEB and enhances lysosome function of primary macrophages and MNC1 and MNC2 in vivo, improving control of Mtb infection. Our results indicate that Mtb exploits lysosome-poor monocyte-derived cells for in vivo persistence, suggesting a potential target for host-directed tuberculosis therapy.
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41
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Aufiero MA, Shlezinger N, Gjonbalaj M, Mills KA, Ballabio A, Hohl TM. Dectin-1/CARD9-induction of the TFEB and TFE3 gene network is dispensable for phagocyte anti- Aspergillus activity in the lung. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.13.544785. [PMID: 37398416 PMCID: PMC10312688 DOI: 10.1101/2023.06.13.544785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Myeloid phagocytes of the respiratory immune system, such as neutrophils, monocytes, and alveolar macrophages, are essential for immunity to Aspergillus fumigatus, the most common etiologic agent of mold pneumonia worldwide. Following engulfment of A. fumigatus conidia, fusion of the phagosome with the lysosome, is a critical process for killing conidia. TFEB and TFE3 are transcription factors that regulate lysosomal biogenesis under stress and are activated by inflammatory stimuli in macrophages, but it is unknown whether TFEB and TFE3 contribute to anti-Aspergillus immunity during infection. We found that lung neutrophils express TFEB and TFE3, and their target genes were upregulated during A. fumigatus lung infection. Additionally, A. fumigatus infection induced nuclear accumulation of TFEB and TFE3 in macrophages in a process regulated by Dectin-1 and CARD9 signaling. Genetic deletion of Tfeb and Tfe3 impaired macrophage killing of A. fumigatus conidia. However, in a murine immune competent Aspergillus infection model with genetic deficiency of Tfeb and Tfe3 in hematopoietic cells, we surprisingly found that lung myeloid phagocytes had no defects in conidial phagocytosis or killing. Loss of TFEB and TFE3 did not impact murine survival or clearance of A. fumigatus from the lungs. Our findings indicate that myeloid phagocytes activate TFEB and TFE3 in response to A. fumigatus, and while this pathway promotes macrophage fungicidal activity in vitro, genetic loss can be functionally compensated at the portal of infection in the lung, resulting in no measurable defect in fungal control and host survival.
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Affiliation(s)
- Mariano A. Aufiero
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Neta Shlezinger
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Mergim Gjonbalaj
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kathleen A.M. Mills
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, NY, USA
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
- Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Naples, Italy
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Tobias M. Hohl
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, NY, USA
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Sopic M, Robinson EL, Emanueli C, Srivastava P, Angione C, Gaetano C, Condorelli G, Martelli F, Pedrazzini T, Devaux Y. Integration of epigenetic regulatory mechanisms in heart failure. Basic Res Cardiol 2023; 118:16. [PMID: 37140699 PMCID: PMC10158703 DOI: 10.1007/s00395-023-00986-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/27/2023] [Accepted: 04/10/2023] [Indexed: 05/05/2023]
Abstract
The number of "omics" approaches is continuously growing. Among others, epigenetics has appeared as an attractive area of investigation by the cardiovascular research community, notably considering its association with disease development. Complex diseases such as cardiovascular diseases have to be tackled using methods integrating different omics levels, so called "multi-omics" approaches. These approaches combine and co-analyze different levels of disease regulation. In this review, we present and discuss the role of epigenetic mechanisms in regulating gene expression and provide an integrated view of how these mechanisms are interlinked and regulate the development of cardiac disease, with a particular attention to heart failure. We focus on DNA, histone, and RNA modifications, and discuss the current methods and tools used for data integration and analysis. Enhancing the knowledge of these regulatory mechanisms may lead to novel therapeutic approaches and biomarkers for precision healthcare and improved clinical outcomes.
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Affiliation(s)
- Miron Sopic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Emma L Robinson
- Division of Cardiology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Costanza Emanueli
- National Heart & Lung Institute, Imperial College London, London, UK
| | | | - Claudio Angione
- School of Computing, Engineering & Digital Technologies, Teesside University, Tees Valley, Middlesbrough, TS1 3BA, UK
- Centre for Digital Innovation, Teesside University, Campus Heart, Tees Valley, Middlesbrough, TS1 3BX, UK
- National Horizons Centre, Darlington, DL1 1HG, UK
| | - Carlo Gaetano
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, Via Maugeri 10, 27100, Pavia, Italy
| | - Gianluigi Condorelli
- IRCCS-Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, MI, Italy
- Institute of Genetic and Biomedical Research, National Research Council of Italy, Arnold-Heller-Str.3, 24105, Milan, Italy
| | - Fabio Martelli
- Molecular Cardiology Laboratory, IRCCS-Policlinico San Donato, Via Morandi 30, San Donato Milanese, 20097, Milan, Italy
| | - Thierry Pedrazzini
- Experimental Cardiology Unit, Division of Cardiology, Department of Cardiovascular Medicine, University of Lausanne Medical School, 1011, Lausanne, Switzerland
| | - Yvan Devaux
- Cardiovascular Research Unit, Department of Population Health, Luxembourg Institute of Health, L-1445, Strassen, Luxembourg.
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Ta A, Ricci-Azevedo R, Vasudevan SO, Wright SS, Kumari P, Havira MS, Surendran Nair M, Rathinam VA, Vanaja SK. A bacterial autotransporter impairs innate immune responses by targeting the transcription factor TFE3. Nat Commun 2023; 14:2035. [PMID: 37041208 PMCID: PMC10090168 DOI: 10.1038/s41467-023-37812-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 03/29/2023] [Indexed: 04/13/2023] Open
Abstract
Type I interferons (IFNs) are consequential cytokines in antibacterial defense. Whether and how bacterial pathogens inhibit innate immune receptor-driven type I IFN expression remains mostly unknown. By screening a library of enterohemorrhagic Escherichia coli (EHEC) mutants, we uncovered EhaF, an uncharacterized protein, as an inhibitor of innate immune responses including IFNs. Further analyses identified EhaF as a secreted autotransporter-a type of bacterial secretion system with no known innate immune-modulatory function-that translocates into host cell cytosol and inhibit IFN response to EHEC. Mechanistically, EhaF interacts with and inhibits the MiT/TFE family transcription factor TFE3 resulting in impaired TANK phosphorylation and consequently, reduced IRF3 activation and type I IFN expression. Notably, EhaF-mediated innate immune suppression promotes EHEC colonization and pathogenesis in vivo. Overall, this study has uncovered a previously unknown autotransporter-based bacterial strategy that targets a specific transcription factor to subvert innate host defense.
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Affiliation(s)
- Atri Ta
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Rafael Ricci-Azevedo
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Swathy O Vasudevan
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Skylar S Wright
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Puja Kumari
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA
| | | | - Meera Surendran Nair
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Vijay A Rathinam
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA
| | - Sivapriya Kailasan Vanaja
- Department of Immunology, UConn Health School of Medicine, 263 Farmington Ave, Farmington, CT, 06030, USA.
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Contreras PS, Tapia PJ, Jeong E, Ghosh S, Altan-Bonnet N, Puertollano R. Beta-coronaviruses exploit cellular stress responses by modulating TFEB and TFE3 activity. iScience 2023; 26:106169. [PMID: 36785787 PMCID: PMC9908431 DOI: 10.1016/j.isci.2023.106169] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/09/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Beta-coronaviruses have emerged as a severe threat to global health. Undercovering the interplay between host and beta-coronaviruses is essential for understanding disease pathogenesis and developing efficient treatments. Here we report that the transcription factors TFEB and TFE3 translocate from the cytosol to the nucleus in response to beta-coronavirus infection by a mechanism that requires activation of calcineurin phosphatase. In the nucleus, TFEB and TFE3 bind to the promoter of multiple lysosomal and immune genes. Accordingly, MHV-induced upregulation of immune regulators is significantly decreased in TFEB/TFE3-depleted cells. Conversely, over-expression of either TFEB or TFE3 is sufficient to increase expression of several cytokines and chemokines. The reduced immune response observed in the absence of TFEB and TFE3 results in increased cellular survival of infected cells but also in reduced lysosomal exocytosis and decreased viral infectivity. These results suggest a central role of TFEB and TFE3 in cellular response to beta-coronavirus infection.
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Affiliation(s)
- Pablo S. Contreras
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Pablo J. Tapia
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Eutteum Jeong
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sourish Ghosh
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nihal Altan-Bonnet
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rosa Puertollano
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
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Liu Q, Zhu S, Zhao Z, Hao T, Xu X, Han S, Li Y, Mai K, Ai Q. Transcription factor EB (TFEB) participates in antiviral immune responses independent of mTORC1 in macrophage of large yellow croaker (Larimichthys crocea). FISH & SHELLFISH IMMUNOLOGY 2023; 134:108609. [PMID: 36764631 DOI: 10.1016/j.fsi.2023.108609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/30/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Transcription factor EB (TFEB) plays an integral role in the production of proinflammatory cytokines and chemokines in response to pathogen stimulation in mammals. However, the role of TFEB in antiviral immune responses and the potential regulatory mechanisms in fish remain poorly understood. Here, we cloned and characterized Larimichthys crocea TFEB (LcTFEB) with 524 amino acids and a typical basic helix-loop-helix-leucine zipper domain. LcTFEB could translocate into the nucleus upon starvation and had a comparatively high expression in immune tissues. Similar to the expression of antiviral immune genes, the transcriptional expression and activity of LcTFEB showed a trend of increasing and then decreasing with the prolongation of stimulation. Inhibition of LcTFEB using siRNA dramatically increased the polyinosinic-polycytidylic acid (poly (I:C))-induced interferon response and pro-inflammatory cytokines mRNA expression levels, whereas pharmacological activation and overexpression of LcTFEB exhibited the reverse effects. Mechanically, LcTFEB might promote the expression of IFNh as negative feedback to limit the virus-induced inflammatory responses. Notably, although inhibition of mTORC1 exacerbated poly (I:C)-triggered inflammatory responses, the effects of LcTFEB were independent of mTORC1. Overall, this study revealed an unidentified critical role of LcTFEB in the regulation of antiviral immune responses and promoted the understanding of TFEB in the antiviral immunity of fish macrophages.
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Affiliation(s)
- Qiangde Liu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Si Zhu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Zengqi Zhao
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Tingting Hao
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Xiang Xu
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Shangzhe Han
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Yueru Li
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China
| | - Kangsen Mai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, 266237, Qingdao, Shandong, PR China
| | - Qinghui Ai
- Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture and Rural Affairs), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, 266003, Qingdao, Shandong, PR China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, 266237, Qingdao, Shandong, PR China.
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46
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Lam MTY, Duttke SH, Odish MF, Le HD, Hansen EA, Nguyen CT, Trescott S, Kim R, Deota S, Chang MW, Patel A, Hepokoski M, Alotaibi M, Rolfsen M, Perofsky K, Warden AS, Foley J, Ramirez SI, Dan JM, Abbott RK, Crotty S, Crotty Alexander LE, Malhotra A, Panda S, Benner CW, Coufal NG. Dynamic activity in cis-regulatory elements of leukocytes identifies transcription factor activation and stratifies COVID-19 severity in ICU patients. Cell Rep Med 2023; 4:100935. [PMID: 36758547 PMCID: PMC9874047 DOI: 10.1016/j.xcrm.2023.100935] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 09/08/2022] [Accepted: 01/17/2023] [Indexed: 01/26/2023]
Abstract
Transcription factor programs mediating the immune response to coronavirus disease 2019 (COVID-19) are not fully understood. Capturing active transcription initiation from cis-regulatory elements such as enhancers and promoters by capped small RNA sequencing (csRNA-seq), in contrast to capturing steady-state transcripts by conventional RNA-seq, allows unbiased identification of the underlying transcription factor activity and regulatory pathways. Here, we profile transcription initiation in critically ill COVID-19 patients, identifying transcription factor motifs that correlate with clinical lung injury and disease severity. Unbiased clustering reveals distinct subsets of cis-regulatory elements that delineate the cell type, pathway-specific, and combinatorial transcription factor activity. We find evidence of critical roles of regulatory networks, showing that STAT/BCL6 and E2F/MYB regulatory programs from myeloid cell populations are activated in patients with poor disease outcomes and associated with COVID-19 susceptibility genetic variants. More broadly, we demonstrate how capturing acute, disease-mediated changes in transcription initiation can provide insight into the underlying molecular mechanisms and stratify patient disease severity.
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Affiliation(s)
- Michael Tun Yin Lam
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Laboratory of Regulatory Biology, Salk Institute for Biological Studies, La Jolla, CA 92037, USA; Pulmonary and Critical Care Section, VA San Diego Healthcare System, La Jolla, CA 92161, USA.
| | - Sascha H Duttke
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99163, USA
| | - Mazen F Odish
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Hiep D Le
- Laboratory of Regulatory Biology, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Emily A Hansen
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA; Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Celina T Nguyen
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | - Samantha Trescott
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA; Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Roy Kim
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA; Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Shaunak Deota
- Laboratory of Regulatory Biology, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Max W Chang
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Arjun Patel
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Mark Hepokoski
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Mona Alotaibi
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Mark Rolfsen
- Internal Medicine Residency Program, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Katherine Perofsky
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA; Rady Children's Hospital, San Diego, CA 92123, USA
| | - Anna S Warden
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA
| | | | - Sydney I Ramirez
- Division of Infectious Diseases, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Jennifer M Dan
- Division of Infectious Diseases, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Robert K Abbott
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Shane Crotty
- Division of Infectious Diseases, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Center for Infectious Diseases and Vaccine Research, La Jolla Institute for Immunology (LJI), La Jolla, CA 92037, USA
| | - Laura E Crotty Alexander
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Pulmonary and Critical Care Section, VA San Diego Healthcare System, La Jolla, CA 92161, USA
| | - Atul Malhotra
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Satchidananda Panda
- Laboratory of Regulatory Biology, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Christopher W Benner
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Nicole G Coufal
- Sanford Consortium for Regenerative Medicine, La Jolla, CA 92037, USA; Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA; Rady Children's Hospital, San Diego, CA 92123, USA
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47
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Goswamy D, Gonzalez X, Labed SA, Irazoqui JE. C. elegans orphan nuclear receptor NHR-42 represses innate immunity and promotes lipid loss downstream of HLH-30/TFEB. Front Immunol 2023; 14:1094145. [PMID: 36860863 PMCID: PMC9968933 DOI: 10.3389/fimmu.2023.1094145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/27/2023] [Indexed: 02/15/2023] Open
Abstract
In recent years, transcription factors of the Microphthalmia-TFE (MiT) family, including TFEB and TFE3 in mammals and HLH-30 in Caenorhabditis elegans, have emerged as important regulators of innate immunity and inflammation in invertebrates and vertebrates. Despite great strides in knowledge, the mechanisms that mediate downstream actions of MiT transcription factors in the context of innate host defense remain poorly understood. Here, we report that HLH-30, which promotes lipid droplet mobilization and host defense, induces the expression of orphan nuclear receptor NHR-42 during infection with Staphylococcus aureus. Remarkably, NHR-42 loss of function promoted host infection resistance, genetically defining NHR-42 as an HLH-30-controlled negative regulator of innate immunity. During infection, NHR-42 was required for lipid droplet loss, suggesting that it is an important effector of HLH-30 in lipid immunometabolism. Moreover, transcriptional profiling of nhr-42 mutants revealed wholesale activation of an antimicrobial signature, of which abf-2, cnc-2, and lec-11 were important for the enhanced survival of infection of nhr-42 mutants. These results advance our knowledge of the mechanisms by which MiT transcription factors promote host defense, and by analogy suggest that TFEB and TFE3 may similarly promote host defense via NHR-42-homologous nuclear receptors in mammals.
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Affiliation(s)
| | | | | | - Javier E. Irazoqui
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA, United States
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48
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Wang B, Martini-Stoica H, Qi C, Lu TC, Wang S, Xiong W, Qi Y, Xu Y, Sardiello M, Li H, Zheng H. TFEB-vacuolar ATPase signaling regulates lysosomal function and microglial activation in tauopathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.06.527293. [PMID: 36798205 PMCID: PMC9934527 DOI: 10.1101/2023.02.06.527293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Transcription factor EB (TFEB) mediates gene expression through binding to the Coordinated Lysosome Expression And Regulation (CLEAR) sequence. TFEB targets include subunits of the vacuolar ATPase (v-ATPase) essential for lysosome acidification. Single nucleus RNA-sequencing (snRNA-seq) of wild-type and PS19 (Tau) transgenic mice identified three unique microglia subclusters in Tau mice that were associated with heightened lysosome and immune pathway genes. To explore the lysosome-immune relationship, we specifically disrupted the TFEB-v-ATPase signaling by creating a knock-in mouse line in which the CLEAR sequence of one of the v-ATPase subunits, Atp6v1h, was mutated. We show that the CLEAR mutant exhibited a muted response to TFEB, resulting in impaired lysosomal acidification and activity. Crossing the CLEAR mutant with Tau mice led to higher tau pathology but diminished microglia response. These microglia were enriched in a subcluster low in mTOR and HIF-1 pathways and was locked in a homeostatic state. Our studies demonstrate a physiological function of TFEB-v-ATPase signaling in maintaining lysosomal homoeostasis and a critical role of the lysosome in mounting a microglia and immune response in tauopathy and Alzheimer's disease.
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Affiliation(s)
- Baiping Wang
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Heidi Martini-Stoica
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Medical Scientist Training Program, Baylor College of Medicine, Houston, TX, USA
| | - Chuangye Qi
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Tzu-Chiao Lu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Shuo Wang
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Wen Xiong
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Yanyan Qi
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Yin Xu
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Marco Sardiello
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Dan and Jan Duncan Neurological Research Institute, Baylor College of Medicine, Houston, TX, USA
| | - Hongjie Li
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Hui Zheng
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
- Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
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49
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Martina JA, Jeong E, Puertollano R. p38 MAPK-dependent phosphorylation of TFEB promotes monocyte-to-macrophage differentiation. EMBO Rep 2023; 24:e55472. [PMID: 36507874 PMCID: PMC9900348 DOI: 10.15252/embr.202255472] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 11/14/2022] [Accepted: 11/21/2022] [Indexed: 12/15/2022] Open
Abstract
The transcription factor EB (TFEB) regulates energy homeostasis and cellular response to a wide variety of stress conditions, including nutrient deprivation, oxidative stress, organelle damage, and pathogens. Here we identify S401 as a novel phosphorylation site within the TFEB proline-rich domain. Phosphorylation of S401 increases significantly in response to oxidative stress, UVC light, growth factors, and LPS, whereas this increase is prevented by p38 MAPK inhibition or depletion, revealing a new role for p38 MAPK in TFEB regulation. Mutation of S401 in THP1 cells demonstrates that the p38 MAPK/TFEB pathway plays a particularly relevant role during monocyte differentiation into macrophages. TFEB-S401A monocytes fail to upregulate the expression of multiple immune genes in response to PMA-induced differentiation, including critical cytokines, chemokines, and growth factors. Polarization of M0 macrophages into M1 inflammatory macrophages is also aberrant in TFEB-S401A cells. These results indicate that TFEB-S401 phosphorylation links differentiation signals to the transcriptional control of monocyte differentiation.
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Affiliation(s)
- José A Martina
- Cell and Developmental Biology CenterNational Heart, Lung, and Blood Institute, National Institutes of HealthBethesdaMDUSA
| | - Eutteum Jeong
- Cell and Developmental Biology CenterNational Heart, Lung, and Blood Institute, National Institutes of HealthBethesdaMDUSA
| | - Rosa Puertollano
- Cell and Developmental Biology CenterNational Heart, Lung, and Blood Institute, National Institutes of HealthBethesdaMDUSA
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50
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Lin W, Li Z, Liang G, Zhou R, Zheng X, Tao R, Huo Q, Su C, Li M, Xu N, Tang C, Song JX. TNEA therapy promotes the autophagic degradation of NLRP3 inflammasome in a transgenic mouse model of Alzheimer's disease via TFEB/TFE3 activation. J Neuroinflammation 2023; 20:21. [PMID: 36732771 PMCID: PMC9896717 DOI: 10.1186/s12974-023-02698-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/13/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The impairment in the autophagy-lysosomal pathway (ALP) and the activation of NLR family pyrin domain containing 3 (NLRP3) inflammasome represent two molecular events leading to neurodegeneration and neuroinflammation in Alzheimer's disease (AD), a devastating neurodegenerative disorder without a cure. Previously we demonstrated the cognitive-enhancing effect of a combined electroacupuncture (EA) therapy termed TNEA in a transgenic mouse model of AD, involving activation of transcription factor EB (TFEB), a master regulator of ALP. However, whether and how TNEA inhibits NLRP3 inflammasome via TFEB-mediated ALP in AD remains to be investigated. METHODS 5xFAD mice overexpressing amyloid-β (Aβ) were treated with TNEA or EA on its composing acupoints (GB13 and GV24). The changes in the signaling pathways regulating NLRP3 inflammasome, the association of NLRP3 inflammasome with ALP, and the roles of TFEB/TFE3 in mice brains were determined by immunoblots, immunohistochemistry and AAV-mediated knockdown assays. RESULTS TNEA inhibits the activation of NLRP3 inflammasome and the release of active interleukin 1β (IL1B) in the hippocampi of 5xFAD mice. Mechanistically, TNEA promoted the autophagic degradation of inflammasome components via activating both TFEB and TFE3 by modulating kinases including AMPK and AKT. The composing acupoints in TNEA showed synergistic effects on regulating these molecular events and memory improvement. CONCLUSION Our findings suggest that TNEA attenuates AD-associated memory impairment via promoting TFEB/TFE3-mediated autophagic clearance of Aβ and NLRP3 inflammasome, and partially reveal the molecular basis of combined acupoints therapy originated from ancient wisdom.
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Affiliation(s)
- Wenjia Lin
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China ,grid.410737.60000 0000 8653 1072Department of Acupuncture and Moxibustion, The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhao Li
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guangfeng Liang
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Runjin Zhou
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoyan Zheng
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China ,grid.284723.80000 0000 8877 7471School of Rehabilitation Sciences, Southern Medical University, Guangzhou, China
| | - Rongrong Tao
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qingwei Huo
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chengfu Su
- grid.221309.b0000 0004 1764 5980Mr. & Mrs. Ko Chi-Ming Centre for Parkinson’s Disease Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Min Li
- grid.221309.b0000 0004 1764 5980Mr. & Mrs. Ko Chi-Ming Centre for Parkinson’s Disease Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Nenggui Xu
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chunzhi Tang
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ju-Xian Song
- grid.411866.c0000 0000 8848 7685Clinical Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, China ,grid.221309.b0000 0004 1764 5980Mr. & Mrs. Ko Chi-Ming Centre for Parkinson’s Disease Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
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