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Chai Z, Li Y, Zhang J, Ding C, Tong X, Zhang Z. Sirtulin-Ypk1 regulation axis governs the TOR signaling pathway and fungal pathogenicity in Cryptococcus neoformans. Microbiol Spectr 2024:e0003824. [PMID: 38912819 DOI: 10.1128/spectrum.00038-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 05/06/2024] [Indexed: 06/25/2024] Open
Abstract
Cryptococcus neoformans is a life-threatening fungal pathogen that is a causative agent for pulmonary infection and meningoencephalitis in both immunocompetent and immunodeficient individuals. Recent studies have elucidated the important function of the target of rapamycin (TOR) signaling pathway in the modulation of C. neoformans virulence factor production and pathogenicity in animal infection models. Herein, we discovered that Ypk1, a critical component of the TOR signaling pathway, acts as a critical modulator in fungal pathogenicity through post-translational modifications (PTMs). Mass spectrometry analysis revealed that Ypk1 is subject to protein acetylation at lysines 315 and 502, and both sites are located within kinase functional domains. Inhibition of the C. neoformans TOR pathway by rapamycin activates the deacetylation process for Ypk1. The YPK1Q strain, a hyper-acetylation of Ypk1, exhibited increased sensitivity to rapamycin, decreased capsule formation ability, reduced starvation tolerance, and diminished fungal pathogenicity, indicating that deacetylation of Ypk1 is crucial for responding to stress. Deacetylase inhibition assays have shown that sirtuin family proteins are critical to the Ypk1 deacetylation mechanism. After screening deacetylase mutants, we found that Dac1 and Dac7 directly interact with Ypk1 to facilitate the deacetylation modification process via a protein-protein interaction. These findings provide new insights into the molecular basis for regulating the TORC-Ypk1 axis and demonstrate an important function of protein acetylation in modulating fungal pathogenicity. IMPORTANCE Cryptococcus neoformans is an important opportunistic fungal pathogen in humans. While there are currently few effective antifungal treatments, the absence of novel molecular targets in fungal pathogenicity hinders the development of new drugs. There is increasing evidence that protein post-translational modifications (PTMs) can modulate the pathogenicity of fungi. In this study, we discovered that the pathogenicity of C. neoformans was significantly impacted by the dynamic acetylation changes of Ypk1, the immediate downstream target of the TOR complex. We discovered that Ypk1 is acetylated at lysines 315 and 502, both of which are within kinase functional domains. Deacetylation of Ypk1 is necessary for formation of the capsule structure, the response to the TOR pathway inhibitor rapamycin, nutrient utilization, and host infection. We also demonstrate that the sirtuin protein family is involved in the Ypk1 deacetylation mechanism. We anticipate that the sirtuin-Ypk1 regulation axis could be used as a potential target for the development of antifungal medications.
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Affiliation(s)
- Zhenghua Chai
- Department of Laboratory Medicine of Shengjing Hospital of China Medical University, Shenyang, China
| | - Yanjian Li
- College of Sciences, Northeastern University, Shenyang, China
| | - Jing Zhang
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Chen Ding
- College of Life and Health Sciences, Northeastern University, Shenyang, China
| | - Xiujuan Tong
- Department of Laboratory Medicine of Central Hospital of Chaoyang, Chaoyang, China
| | - Zhijie Zhang
- Department of Laboratory Medicine of Shengjing Hospital of China Medical University, Shenyang, China
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2
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Suda K, Moriyama Y, Razali N, Chiu Y, Masukagami Y, Nishimura K, Barbee H, Takase H, Sugiyama S, Yamazaki Y, Sato Y, Higashiyama T, Johmura Y, Nakanishi M, Kono K. Plasma membrane damage limits replicative lifespan in yeast and induces premature senescence in human fibroblasts. NATURE AGING 2024; 4:319-335. [PMID: 38388781 PMCID: PMC10950784 DOI: 10.1038/s43587-024-00575-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 01/26/2024] [Indexed: 02/24/2024]
Abstract
Plasma membrane damage (PMD) occurs in all cell types due to environmental perturbation and cell-autonomous activities. However, cellular outcomes of PMD remain largely unknown except for recovery or death. In this study, using budding yeast and normal human fibroblasts, we found that cellular senescence-stable cell cycle arrest contributing to organismal aging-is the long-term outcome of PMD. Our genetic screening using budding yeast unexpectedly identified a close genetic association between PMD response and replicative lifespan regulations. Furthermore, PMD limits replicative lifespan in budding yeast; upregulation of membrane repair factors ESCRT-III (SNF7) and AAA-ATPase (VPS4) extends it. In normal human fibroblasts, PMD induces premature senescence via the Ca2+-p53 axis but not the major senescence pathway, DNA damage response pathway. Transient upregulation of ESCRT-III (CHMP4B) suppressed PMD-dependent senescence. Together with mRNA sequencing results, our study highlights an underappreciated but ubiquitous senescent cell subtype: PMD-dependent senescent cells.
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Affiliation(s)
- Kojiro Suda
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Yohsuke Moriyama
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Nurhanani Razali
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Yatzu Chiu
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Yumiko Masukagami
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Koutarou Nishimura
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Hyogo, Japan
| | - Hunter Barbee
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Hiroshi Takase
- Core Laboratory, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Shinju Sugiyama
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Yuta Yamazaki
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Yoshikatsu Sato
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Tetsuya Higashiyama
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Department of Biological Science, Graduate School of Science, University of Tokyo, Tokyo, Japan
| | - Yoshikazu Johmura
- Division of Cancer Cell Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Makoto Nakanishi
- Division of Cancer Cell Biology, Institute of Medical Science, University of Tokyo, Tokyo, Japan
| | - Keiko Kono
- Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan.
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Bhaduri S, Aguayo A, Ohno Y, Proietto M, Jung J, Wang I, Kandel R, Singh N, Ibrahim I, Fulzele A, Bennett EJ, Kihara A, Neal SE. An ERAD-independent role for rhomboid pseudoprotease Dfm1 in mediating sphingolipid homeostasis. EMBO J 2023; 42:e112275. [PMID: 36350249 PMCID: PMC9929635 DOI: 10.15252/embj.2022112275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/20/2022] [Accepted: 10/19/2022] [Indexed: 11/11/2022] Open
Abstract
Nearly one-third of nascent proteins are initially targeted to the endoplasmic reticulum (ER), where they are correctly folded and assembled before being delivered to their final cellular destinations. To prevent the accumulation of misfolded membrane proteins, ER-associated degradation (ERAD) removes these client proteins from the ER membrane to the cytosol in a process known as retrotranslocation. Our previous work demonstrated that rhomboid pseudoprotease Dfm1 is involved in the retrotranslocation of ubiquitinated membrane integral ERAD substrates. Herein, we found that Dfm1 associates with the SPOTS complex, which is composed of serine palmitoyltransferase (SPT) enzymes and accessory components that are critical for catalyzing the first rate-limiting step of the sphingolipid biosynthesis pathway. Furthermore, Dfm1 employs an ERAD-independent role for facilitating the ER export and endosome- and Golgi-associated degradation (EGAD) of Orm2, which is a major antagonist of SPT activity. Given that the accumulation of human Orm2 homologs, ORMDLs, is associated with various pathologies, our study serves as a molecular foothold for understanding how dysregulation of sphingolipid metabolism leads to various diseases.
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Affiliation(s)
- Satarupa Bhaduri
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Analine Aguayo
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Yusuke Ohno
- Laboratory of Biochemistry, Faculty of Pharmaceutical SciencesHokkaido UniversitySapporoJapan
| | - Marco Proietto
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Jasmine Jung
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Isabel Wang
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Rachel Kandel
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Narinderbir Singh
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Ikran Ibrahim
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Amit Fulzele
- Present address:
Institute of Molecular BiologyMainzGermany
| | - Eric J Bennett
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
| | - Akio Kihara
- Laboratory of Biochemistry, Faculty of Pharmaceutical SciencesHokkaido UniversitySapporoJapan
| | - Sonya E Neal
- Department of Cell and Developmental Biology, School of Biological SciencesUniversity of California San DiegoLa JollaCAUSA
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TOR complex 2 is a master regulator of plasma membrane homeostasis. Biochem J 2022; 479:1917-1940. [PMID: 36149412 PMCID: PMC9555796 DOI: 10.1042/bcj20220388] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022]
Abstract
As first demonstrated in budding yeast (Saccharomyces cerevisiae), all eukaryotic cells contain two, distinct multi-component protein kinase complexes that each harbor the TOR (Target Of Rapamycin) polypeptide as the catalytic subunit. These ensembles, dubbed TORC1 and TORC2, function as universal, centrally important sensors, integrators, and controllers of eukaryotic cell growth and homeostasis. TORC1, activated on the cytosolic surface of the lysosome (or, in yeast, on the cytosolic surface of the vacuole), has emerged as a primary nutrient sensor that promotes cellular biosynthesis and suppresses autophagy. TORC2, located primarily at the plasma membrane, plays a major role in maintaining the proper levels and bilayer distribution of all plasma membrane components (sphingolipids, glycerophospholipids, sterols, and integral membrane proteins). This article surveys what we have learned about signaling via the TORC2 complex, largely through studies conducted in S. cerevisiae. In this yeast, conditions that challenge plasma membrane integrity can, depending on the nature of the stress, stimulate or inhibit TORC2, resulting in, respectively, up-regulation or down-regulation of the phosphorylation and thus the activity of its essential downstream effector the AGC family protein kinase Ypk1. Through the ensuing effect on the efficiency with which Ypk1 phosphorylates multiple substrates that control diverse processes, membrane homeostasis is maintained. Thus, the major focus here is on TORC2, Ypk1, and the multifarious targets of Ypk1 and how the functions of these substrates are regulated by their Ypk1-mediated phosphorylation, with emphasis on recent advances in our understanding of these processes.
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Wang L, Lin G, Zuo Z, Li Y, Byeon SK, Pandey A, Bellen HJ. Neuronal activity induces glucosylceramide that is secreted via exosomes for lysosomal degradation in glia. SCIENCE ADVANCES 2022; 8:eabn3326. [PMID: 35857503 PMCID: PMC9278864 DOI: 10.1126/sciadv.abn3326] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Recessive variants in GBA1 cause Gaucher disease, a prevalent form of lysosome storage disease. GBA1 encodes a lysosomal enzyme that hydrolyzes glucosylceramide (GlcCer) into glucose and ceramide. Its loss causes lysosomal dysfunction and increased levels of GlcCer. We generated a null allele of the Drosophila ortholog Gba1b by inserting the Gal4 using CRISPR-Cas9. Here, we show that Gba1b is expressed in glia but not in neurons. Glial-specific knockdown recapitulates the defects found in Gba1b mutants, and these can be rescued by glial expression of human GBA1. We show that GlcCer is synthesized upon neuronal activity, and it is transported from neurons to glia through exosomes. Furthermore, we found that glial TGF-β/BMP induces the transfer of GlcCer from neurons to glia and that the White protein, an ABCG transporter, promotes GlcCer trafficking to glial lysosomes for degradation.
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Affiliation(s)
- Liping Wang
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
| | - Guang Lin
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Zhongyuan Zuo
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yarong Li
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Seul Kee Byeon
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
| | - Akhilesh Pandey
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Manipal Academy of Higher Education, Manipal, Karnataka 576 104, India
| | - Hugo J. Bellen
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX 77030, USA
- Jan and Dan Duncan Neurological Research Institute, Texas Children’s Hospital, Houston, TX 77030, USA
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
- Corresponding author.
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Wróbel M, Cendrowski J, Szymańska E, Grębowicz-Maciukiewicz M, Budick-Harmelin N, Macias M, Szybińska A, Mazur M, Kolmus K, Goryca K, Dąbrowska M, Paziewska A, Mikula M, Miączyńska M. ESCRT-I fuels lysosomal degradation to restrict TFEB/TFE3 signaling via the Rag-mTORC1 pathway. Life Sci Alliance 2022; 5:5/7/e202101239. [PMID: 35354596 PMCID: PMC8967991 DOI: 10.26508/lsa.202101239] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022] Open
Abstract
ESCRT-I deficiency impairs lysosome membrane turnover and induces homeostatic responses to lysosomal nutrient starvation including activation of MiT-TFE signaling caused by inhibition of the substrate-specific mTORC1 pathway. Within the endolysosomal pathway in mammalian cells, ESCRT complexes facilitate degradation of proteins residing in endosomal membranes. Here, we show that mammalian ESCRT-I restricts the size of lysosomes and promotes degradation of proteins from lysosomal membranes, including MCOLN1, a Ca2+ channel protein. The altered lysosome morphology upon ESCRT-I depletion coincided with elevated expression of genes annotated to biogenesis of lysosomes due to prolonged activation of TFEB/TFE3 transcription factors. Lack of ESCRT-I also induced transcription of cholesterol biosynthesis genes, in response to inefficient delivery of cholesterol from endolysosomal compartments. Among factors that could possibly activate TFEB/TFE3 signaling upon ESCRT-I deficiency, we excluded lysosomal cholesterol accumulation and Ca2+-mediated dephosphorylation of TFEB/TFE3. However, we discovered that this activation occurs due to the inhibition of Rag GTPase–dependent mTORC1 pathway that specifically reduced phosphorylation of TFEB at S122. Constitutive activation of the Rag GTPase complex in cells lacking ESCRT-I restored S122 phosphorylation and prevented TFEB/TFE3 activation. Our results indicate that ESCRT-I deficiency evokes a homeostatic response to counteract lysosomal nutrient starvation, that is, improper supply of nutrients derived from lysosomal degradation.
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Affiliation(s)
- Marta Wróbel
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Jarosław Cendrowski
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Ewelina Szymańska
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | | | - Noga Budick-Harmelin
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Matylda Macias
- Microscopy and Cytometry Facility, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Aleksandra Szybińska
- Microscopy and Cytometry Facility, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Michał Mazur
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Krzysztof Kolmus
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
| | - Krzysztof Goryca
- Department of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Michalina Dąbrowska
- Department of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Agnieszka Paziewska
- Department of Gastroenterology, Hepatology and Clinical Oncology, Medical Center for Postgraduate Education, Warsaw, Poland
| | - Michał Mikula
- Department of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Marta Miączyńska
- Laboratory of Cell Biology, International Institute of Molecular and Cell Biology, Warsaw, Poland
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Schlarmann P, Ikeda A, Funato K. Membrane Contact Sites in Yeast: Control Hubs of Sphingolipid Homeostasis. MEMBRANES 2021; 11:971. [PMID: 34940472 PMCID: PMC8707754 DOI: 10.3390/membranes11120971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 01/02/2023]
Abstract
Sphingolipids are the most diverse class of membrane lipids, in terms of their structure and function. Structurally simple sphingolipid precursors, such as ceramides, act as intracellular signaling molecules in various processes, including apoptosis, whereas mature and complex forms of sphingolipids are important structural components of the plasma membrane. Supplying complex sphingolipids to the plasma membrane, according to need, while keeping pro-apoptotic ceramides in check is an intricate task for the cell and requires mechanisms that tightly control sphingolipid synthesis, breakdown, and storage. As each of these processes takes place in different organelles, recent studies, using the budding yeast Saccharomyces cerevisiae, have investigated the role of membrane contact sites as hubs that integrate inter-organellar sphingolipid transport and regulation. In this review, we provide a detailed overview of the findings of these studies and put them into the context of established regulatory mechanisms of sphingolipid homeostasis. We have focused on the role of membrane contact sites in sphingolipid metabolism and ceramide transport, as well as the mechanisms that prevent toxic ceramide accumulation.
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Affiliation(s)
| | | | - Kouichi Funato
- Graduate School of Integrated Sciences for Life, Hiroshima University, Kagamiyama 1-4-4, Higashi-Hiroshima 739-8528, Japan; (P.S.); (A.I.)
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Ishino Y, Komatsu N, Sakata KT, Yoshikawa D, Tani M, Maeda T, Morishige K, Yoshizawa K, Tanaka N, Tabuchi M. Regulation of sphingolipid biosynthesis in the endoplasmic reticulum via signals from the plasma membrane in budding yeast. FEBS J 2021; 289:457-472. [PMID: 34492164 DOI: 10.1111/febs.16189] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/13/2021] [Accepted: 09/06/2021] [Indexed: 11/28/2022]
Abstract
Saccharomyces cerevisiae LIP1 encodes a regulatory subunit that forms a complex with the ceramide synthase catalytic subunits, Lag1/Lac1, which is localized on the membrane of endoplasmic reticulum. To understand the underlying regulatory mechanism of sphingolipid biosynthesis, we generated strains upon replacing the chromosomal LIP1 promoter with a Tet-off promoter, which enables the expression in Dox-dependent manner. The lip1-1 strain, obtained through the promoter substitution, exhibits severe growth inhibition and remarkable decrease in sphingolipid synthesis in the presence of Dox. Using this strain, we investigated the effect of a decrease in ceramide synthesis on TOR complex 2 (TORC2)-Ypk1 signaling, which senses the complex sphingolipid level at the plasma membrane and promotes sphingolipid biosynthesis. In lip1-1 cells, Ypk1 was activated via both upstream kinases, TORC2 and yeast PDK1 homologues, Pkh1/2, thereby inducing hyperphosphorylation of Lag1, but not of another Ypk1-substrate, Orm1, which is a known negative regulator of the first step of sphingolipid metabolism, in the presence of Dox. Therefore, our data suggest that the metabolic enzyme activities at each step of the sphingolipid biosynthetic pathway are controlled through a fine regulatory mechanism.
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Affiliation(s)
- Yuko Ishino
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Nao Komatsu
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Ken-Taro Sakata
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Daichi Yoshikawa
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Motohiro Tani
- Department of Chemistry, Faculty of Sciences, Kyushu University, Fukuoka, Japan
| | - Tatsuya Maeda
- Department of Biology, Hamamatsu University School of Medicine, Japan
| | - Kanta Morishige
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Koushiro Yoshizawa
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Naotaka Tanaka
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
| | - Mitsuaki Tabuchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki-cho, Japan
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