51
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Badmi R, Sheikh AH, Bhagat PK, Verma D, Noryang S, Sinha AK. Possible role of plant MAP kinases in the biogenesis and transcription regulation of rice microRNA pathway factors. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 129:238-243. [PMID: 29902676 DOI: 10.1016/j.plaphy.2018.06.005] [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: 03/09/2018] [Revised: 05/19/2018] [Accepted: 06/05/2018] [Indexed: 06/08/2023]
Abstract
Signalling pathways play vital roles as determinants of almost all the molecular processes inside a eukaryotic cell. They are more often considered to be the link between extracellular and intracellular environmental cues. Gene silencing pathways have emerged to be involved in regulation of stress responses and developmental processes. However, very little is known about the crosstalk between signalling and silencing pathways and their influence on each other. The present work describes the effects of general protein kinase inhibitors and specific mitogen activated protein kinase (MAPK) pathway inhibitors on the components of microRNA pathway in rice. The kinase inhibitors significantly reduced the activities of miRNA biogenesis complex and changed the transcript expression of miRNA pathway factors. This study suggests a possible regulation of microRNA machinery by plant kinases and MAP kinases in particular.
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Affiliation(s)
- Raghuram Badmi
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110065, India.
| | - Arsheed Hussain Sheikh
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110065, India
| | - Prakash Kumar Bhagat
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110065, India
| | - Deepanjali Verma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110065, India
| | - Stanzin Noryang
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110065, India
| | - Alok Krishna Sinha
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110065, India
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52
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Guo H, Zhong Y, Jackson AL, Clark LH, Kilgore J, Zhang L, Han J, Sheng X, Gilliam TP, Gehrig PA, Zhou C, Bae-Jump VL. Everolimus exhibits anti-tumorigenic activity in obesity-induced ovarian cancer. Oncotarget 2018; 7:20338-56. [PMID: 26959121 PMCID: PMC4991459 DOI: 10.18632/oncotarget.7934] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 01/24/2016] [Indexed: 01/21/2023] Open
Abstract
Everolimus inhibits mTOR kinase activity and its downstream targets by acting on mTORC1 and has anti-tumorigenic activity in ovarian cancer. Clinical and epidemiologic data find that obesity is associated with worse outcomes in ovarian cancer. In addition, obesity leads to hyperactivation of the mTOR pathway in epithelial tissues, suggesting that mTOR inhibitors may be a logical choice for treatment in obesity-driven cancers. However, it remains unclear if obesity impacts the effect of everolimus on tumor growth in ovarian cancer. The present study was aimed at evaluating the effects of everolimus on cytotoxicity, cell metabolism, apoptosis, cell cycle, cell stress and invasion in human ovarian cancer cells. A genetically engineered mouse model of serous ovarian cancer fed a high fat diet or low fat diet allowed further investigation into the inter-relationship between everolimus and obesity in vivo. Everolimus significantly inhibited cellular proliferation, induced cell cycle G1 arrest and apoptosis, reduced invasion and caused cellular stress via inhibition of mTOR pathways in vitro. Hypoglycemic conditions enhanced the sensitivity of cells to everolimus through the disruption of glycolysis. Moreover, everolimus was found to inhibit ovarian tumor growth in both obese and lean mice. This reduction coincided with a decrease in expression of Ki-67 and phosphorylated-S6, as well as an increase in cleaved caspase 3 and phosphorylated-AKT. Metabolite profiling revealed that everolimus was able to alter tumor metabolism through different metabolic pathways in the obese and lean mice. Our findings support that everolimus may be a promising therapeutic agent for obesity-driven ovarian cancers.
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Affiliation(s)
- Hui Guo
- Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan University, Jinan, P.R. China.,Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Shandong, P.R. China
| | - Yan Zhong
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,Department of Gynecologic Oncology, Linyi Cancer Hospital, Linyi, P.R. China
| | - Amanda L Jackson
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA
| | - Leslie H Clark
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA
| | - Josh Kilgore
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA
| | - Lu Zhang
- Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan University, Jinan, P.R. China.,Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,School of Medicine and Life Sciences, University of Jinan, Shandong Academy of Medical Sciences, Shandong, P.R. China
| | - Jianjun Han
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,Department of Surgical Oncology, Shandong Cancer Hospital and Institute, Jinan, P.R. China
| | - Xiugui Sheng
- Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan University, Jinan, P.R. China
| | - Timothy P Gilliam
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA
| | - Paola A Gehrig
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Chunxiao Zhou
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Victoria L Bae-Jump
- Division of Gynecologic Oncology, University of North Carolina, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
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53
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Blötz C, Stülke J. Glycerol metabolism and its implication in virulence in Mycoplasma. FEMS Microbiol Rev 2017; 41:640-652. [PMID: 28961963 DOI: 10.1093/femsre/fux033] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 06/09/2017] [Indexed: 12/11/2022] Open
Abstract
Glycerol and glycerol-containing compounds such as lipids belong to the most abundant organic compounds that may serve as nutrient for many bacteria. For the cell wall-less bacteria of the genus Mycoplasma, glycerol derived from phospholipids of their human or animal hosts is the major source of carbon and energy. The lipids are first degraded by lipases, and the resulting glycerophosphodiesters are transported into the cell and cleaved to release glycerol-3-phosphate. Alternatively, free glycerol can be transported, and then become phosphorylated. The oxidation of glycerol-3-phosphate in Mycoplasma spp. as well as in related firmicutes involves a hydrogen peroxide-generating glycerol-3-phosphate oxidase. This enzyme is a key player in the virulence of Mycoplasma spp. as the produced hydrogen peroxide is one of the major virulence factors of these bacteria. In this review, the different components involved in the utilization of lipids and glycerol in Mycoplasma pneumoniae and related bacteria are discussed.
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Affiliation(s)
- Cedric Blötz
- Department for General Microbiology, Georg-August-University Göttingen, 37077 Göttingen, Germany
| | - Jörg Stülke
- Department for General Microbiology, Georg-August-University Göttingen, 37077 Göttingen, Germany
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54
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Nakamura M, Kumrungsee T, Sakuma T, Yamamoto T, Yanaka N. TALEN-mediated targeted editing of the GDE5 gene suppresses fibroblastic cell proliferation. Biosci Biotechnol Biochem 2017; 81:2164-2167. [PMID: 28934905 DOI: 10.1080/09168451.2017.1373593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In this study, we investigated the physiological function of glycerophosphodiesterase 5 (GDE5) in the proliferation of NIH3T3 fibroblasts. We used transcription activator-like effector nuclease (TALEN) in NIH3T3 cells with an intron targeting-mediated GDE5 gene knockout. The heterozygously GDE5-targeted NIH3T3 fibroblasts were isolated and showed decreased cell proliferation and up-regulation of EGFR mRNA expression, indicating that GDE5 modulates fibroblastic cell proliferation.
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Affiliation(s)
- Minako Nakamura
- a Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science , Hiroshima University , Higashi-Hiroshima , Japan
| | - Thanutchaporn Kumrungsee
- a Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science , Hiroshima University , Higashi-Hiroshima , Japan
| | - Tetsushi Sakuma
- b Department of Mathematical and Life Sciences, Graduate School of Science , Hiroshima University , Hiroshima , Japan
| | - Takashi Yamamoto
- b Department of Mathematical and Life Sciences, Graduate School of Science , Hiroshima University , Hiroshima , Japan
| | - Noriyuki Yanaka
- a Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science , Hiroshima University , Higashi-Hiroshima , Japan
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55
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van Veen M, Matas-Rico E, van de Wetering K, Leyton-Puig D, Kedziora KM, De Lorenzi V, Stijf-Bultsma Y, van den Broek B, Jalink K, Sidenius N, Perrakis A, Moolenaar WH. Negative regulation of urokinase receptor activity by a GPI-specific phospholipase C in breast cancer cells. eLife 2017; 6. [PMID: 28849762 PMCID: PMC5576486 DOI: 10.7554/elife.23649] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 07/28/2017] [Indexed: 12/21/2022] Open
Abstract
The urokinase receptor (uPAR) is a glycosylphosphatidylinositol (GPI)-anchored protein that promotes tissue remodeling, tumor cell adhesion, migration and invasion. uPAR mediates degradation of the extracellular matrix through protease recruitment and enhances cell adhesion, migration and signaling through vitronectin binding and interactions with integrins. Full-length uPAR is released from the cell surface, but the mechanism and significance of uPAR shedding remain obscure. Here we identify transmembrane glycerophosphodiesterase GDE3 as a GPI-specific phospholipase C that cleaves and releases uPAR with consequent loss of function, whereas its homologue GDE2 fails to attack uPAR. GDE3 overexpression depletes uPAR from distinct basolateral membrane domains in breast cancer cells, resulting in a less transformed phenotype, it slows tumor growth in a xenograft model and correlates with prolonged survival in patients. Our results establish GDE3 as a negative regulator of the uPAR signaling network and, furthermore, highlight GPI-anchor hydrolysis as a cell-intrinsic mechanism to alter cell behavior. Every process in the body, from how cells divide to how they move around, is tightly regulated. For example, cells only migrate when they receive the correct signals from their environment. These signals are recognised by receptor proteins that sit on the cell surface and connect the outside signal with the cell’s response. However, in cancer cells, these processes are out of control, which is why cancer cells can grow very quickly or spread to many different parts of the body. One important receptor protein is the urokinase receptor, which helps to reorganize the tissue, for example, when wounds heal, but also enables cancer cells to grow and spread. A special feature of urokinase receptor is the way it is connected to the cell surface, namely through a molecule that acts as an anchor, called the GPI anchor. The urokinase receptor and some other GPI-anchored proteins can be released from their anchor. However, until now it was not clear why and how the urokinase receptor is released from cells, or how losing the receptor affects the cell. Now, van Veen, Matas-Rico et al. studied breast cancer cells, and discovered that an enzyme called GDE3 cuts the urokinase receptor off its GPI anchor to release the receptor from the cells. However, when breast cancer cells shed the urokinase receptor, they also lost the receptor from the cell surface in specific areas. As a result, the receptor could not work anymore. When breast cancer cells were experimentally modified to produce high levels of GDE3, the cancer cells became less mobile and aggressive. Van Veen, Matas-Rico et al. then implanted ‘normal’ breast cancer cells, and breast cancer cells with extra GDE3 into mice, and observed that the tumors of mice with additional GDE3 grew less quickly. Moreover, breast cancer patients with high levels of GDE3 tend to live longer than patients with low levels of GDE3. These results suggest that the enzyme GDE3 can suppress tumor growth. These findings uncover a new way how cells can alter their behavior, namely by cleaving GPI anchors at the cell surface. Future experiments will need to address how GDE3 itself is controlled, and if it releases other GPI-anchored proteins from cells. Once we know how to increase GDE3 activity in tumor cells, the new knowledge could one day lead to therapies to help patients with cancer.
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Affiliation(s)
- Michiel van Veen
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Elisa Matas-Rico
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Koen van de Wetering
- Division of Molecular Oncology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Daniela Leyton-Puig
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Katarzyna M Kedziora
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Yvette Stijf-Bultsma
- Division of Biochemistry, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Bram van den Broek
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Anastassis Perrakis
- Division of Biochemistry, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Wouter H Moolenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, Netherlands
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56
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Uyama T, Tsuboi K, Ueda N. An involvement of phospholipase A/acyltransferase family proteins in peroxisome regulation and plasmalogen metabolism. FEBS Lett 2017; 591:2745-2760. [PMID: 28796890 DOI: 10.1002/1873-3468.12787] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 11/09/2022]
Abstract
The H-Ras-like suppressor (HRASLS) is a protein family consisting of five members in humans. Despite their discovery as tumor suppressors, we demonstrated that all these proteins are phospholipid-metabolizing enzymes, such as phospholipase (PL) A1 /A2 and acyltransferase. We thus proposed to rename HRASLS1-5 as PLA/acyltransferase (PLAAT)-1-5. Notably, PLAATs exhibit N-acyltransferase activity to biosynthesize N-acylated ethanolamine phospholipids, including N-acyl-plasmalogen, which serve as precursors of bioactive N-acylethanolamines. Furthermore, the overexpression of PLAAT-3 in animal cells causes disappearance of peroxisomes and a remarkable reduction in plasmalogen levels. This finding might be related to the inhibitory effect of PLAAT-3 on the chaperone activity of the peroxin PEX19. In this article, we will review our recent findings about PLAAT proteins, with special reference to their roles in peroxisome biogenesis and plasmalogen metabolism.
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Affiliation(s)
- Toru Uyama
- Department of Biochemistry, Kagawa University School of Medicine, Japan
| | - Kazuhito Tsuboi
- Department of Pharmacology, Kawasaki Medical School, Kurashiki, Japan
| | - Natsuo Ueda
- Department of Biochemistry, Kagawa University School of Medicine, Japan
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57
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Mammalian enzymes responsible for the biosynthesis of N-acylethanolamines. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:1546-1561. [PMID: 28843504 DOI: 10.1016/j.bbalip.2017.08.006] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/31/2017] [Accepted: 08/19/2017] [Indexed: 12/15/2022]
Abstract
Bioactive N-acylethanolamines (NAEs) are ethanolamides of long-chain fatty acids, including palmitoylethanolamide, oleoylethanolamide and anandamide. In animal tissues, NAEs are biosynthesized from membrane phospholipids. The classical "transacylation-phosphodiesterase" pathway proceeds via N-acyl-phosphatidylethanolamine (NAPE), which involves the actions of two enzymes, NAPE-generating Ca2+-dependent N-acyltransferase (Ca-NAT) and NAPE-hydrolyzing phospholipase D (NAPE-PLD). Recent identification of Ca-NAT as Ɛ isoform of cytosolic phospholipase A2 enabled the further molecular biological approaches toward this enzyme. In addition, Ca2+-independent NAPE formation was shown to occur by N-acyltransferase activity of a group of proteins named phospholipase A/acyltransferases (PLAAT)-1-5. The analysis of NAPE-PLD-deficient mice confirmed that NAEs can be produced through multi-step pathways bypassing NAPE-PLD. The NAPE-PLD-independent pathways involved three members of the glycerophosphodiesterase (GDE) family (GDE1, GDE4 and GDE7) as well as α/β-hydrolase domain-containing protein (ABHD)4. In this review article, we will focus on recent progress made and latest insights in the enzymes involved in NAE synthesis and their further characterization.
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58
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Matas-Rico E, van Veen M, Moolenaar WH. GDE2/GDPD5 in neuroblastoma. Oncotarget 2017; 8:5672-5673. [PMID: 28030823 PMCID: PMC5351574 DOI: 10.18632/oncotarget.14233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 12/24/2016] [Indexed: 11/25/2022] Open
Affiliation(s)
- Elisa Matas-Rico
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan, Amsterdam, The Netherlands
| | - Michiel van Veen
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan, Amsterdam, The Netherlands
| | - Wouter H Moolenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan, Amsterdam, The Netherlands
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59
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Cave C, Park S, Rodriguez M, Nakamura M, Hoke A, Pletnikov M, Sockanathan S. GDE2 is essential for neuronal survival in the postnatal mammalian spinal cord. Mol Neurodegener 2017; 12:8. [PMID: 28103900 PMCID: PMC5244531 DOI: 10.1186/s13024-017-0148-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 01/05/2017] [Indexed: 12/13/2022] Open
Abstract
Background Glycerophosphodiester phosphodiesterase 2 (GDE2) is a six-transmembrane protein that cleaves glycosylphosphatidylinositol (GPI) anchors to regulate GPI-anchored protein activity at the cell surface. In the developing spinal cord, GDE2 utilizes its enzymatic function to regulate the production of specific classes of motor neurons and interneurons; however, GDE2’s roles beyond embryonic neurogenesis have yet to be defined. Method Using a panel of histological, immunohistochemical, electrophysiological, behavioral, and biochemistry techniques, we characterized the postnatal Gde2−/− mouse for evidence of degenerative neuropathology. A conditional deletion of Gde2 was used to study the temporal requirements for GDE2 in neuronal survival. Biochemical approaches identified deficits in the processing of GPI-anchored GDE2 substrates in the SOD1G93A mouse model of familial Amyotrophic Lateral Sclerosis that shows robust motor neuron degeneration. Results Here we show that GDE2 expression continues postnatally, and adult mice lacking GDE2 exhibit a slow, progressive neuronal degeneration with pathologies similar to human neurodegenerative disease. Early phenotypes include vacuolization, microgliosis, cytoskeletal accumulation, and lipofuscin deposition followed by astrogliosis and cell death. Remaining motor neurons exhibit peripheral motor unit restructuring causing behavioral motor deficits. Genetic ablation of GDE2 after embryonic neurogenesis is complete still elicits degenerative pathology, signifying that GDE2’s requirement for neuronal survival is distinct from its involvement in neuronal differentiation. Unbiased screens identify impaired processing of Glypican 4 and 6 in Gde2 null animals, and Glypican release is markedly reduced in SOD1G93A mice. Conclusions This study identifies a novel function for GDE2 in neuronal survival and implicates deregulated GPI-anchored protein activity in pathways mediating neurodegeneration. These findings provide new molecular insight for neuropathologies found in multiple disease settings, and raise the possibility of GDE2 hypofunctionality as a component of neurodegenerative disease. Electronic supplementary material The online version of this article (doi:10.1186/s13024-017-0148-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Clinton Cave
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, 725 N Wolfe Street, PCTB 1004, Baltimore, MD, 21205, USA
| | - Sungjin Park
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, 725 N Wolfe Street, PCTB 1004, Baltimore, MD, 21205, USA.,University of Utah, BPRB 390D South 2030 East, Salt Lake City, UT, 84112, USA
| | - Marianeli Rodriguez
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, 725 N Wolfe Street, PCTB 1004, Baltimore, MD, 21205, USA.,Bascom Palmer Eye Institute, 900 NW 17th St, Miami, FL, 33136, USA
| | - Mai Nakamura
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, 725 N Wolfe Street, PCTB 1004, Baltimore, MD, 21205, USA
| | - Ahmet Hoke
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Mikhail Pletnikov
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Shanthini Sockanathan
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, 725 N Wolfe Street, PCTB 1004, Baltimore, MD, 21205, USA.
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60
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Cheng M, Bhujwalla ZM, Glunde K. Targeting Phospholipid Metabolism in Cancer. Front Oncol 2016; 6:266. [PMID: 28083512 PMCID: PMC5187387 DOI: 10.3389/fonc.2016.00266] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Accepted: 12/14/2016] [Indexed: 12/14/2022] Open
Abstract
All cancers tested so far display abnormal choline and ethanolamine phospholipid metabolism, which has been detected with numerous magnetic resonance spectroscopy (MRS) approaches in cells, animal models of cancer, as well as the tumors of cancer patients. Since the discovery of this metabolic hallmark of cancer, many studies have been performed to elucidate the molecular origins of deregulated choline metabolism, to identify targets for cancer treatment, and to develop MRS approaches that detect choline and ethanolamine compounds for clinical use in diagnosis and treatment monitoring. Several enzymes in choline, and recently also ethanolamine, phospholipid metabolism have been identified, and their evaluation has shown that they are involved in carcinogenesis and tumor progression. Several already established enzymes as well as a number of emerging enzymes in phospholipid metabolism can be used as treatment targets for anticancer therapy, either alone or in combination with other chemotherapeutic approaches. This review summarizes the current knowledge of established and relatively novel targets in phospholipid metabolism of cancer, covering choline kinase α, phosphatidylcholine-specific phospholipase D1, phosphatidylcholine-specific phospholipase C, sphingomyelinases, choline transporters, glycerophosphodiesterases, phosphatidylethanolamine N-methyltransferase, and ethanolamine kinase. These enzymes are discussed in terms of their roles in oncogenic transformation, tumor progression, and crucial cancer cell properties such as fast proliferation, migration, and invasion. Their potential as treatment targets are evaluated based on the current literature.
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Affiliation(s)
- Menglin Cheng
- Division of Cancer Imaging Research, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine , Baltimore, MD , USA
| | - Zaver M Bhujwalla
- Division of Cancer Imaging Research, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kristine Glunde
- Division of Cancer Imaging Research, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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61
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Rahman IAS, Tsuboi K, Hussain Z, Yamashita R, Okamoto Y, Uyama T, Yamazaki N, Tanaka T, Tokumura A, Ueda N. Calcium-dependent generation of N-acylethanolamines and lysophosphatidic acids by glycerophosphodiesterase GDE7. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:1881-1892. [DOI: 10.1016/j.bbalip.2016.09.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/23/2016] [Accepted: 09/10/2016] [Indexed: 01/26/2023]
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62
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Strifler G, Tuboly E, Görbe A, Boros M, Pécz D, Hartmann P. Targeting Mitochondrial Dysfunction with L-Alpha Glycerylphosphorylcholine. PLoS One 2016; 11:e0166682. [PMID: 27861548 PMCID: PMC5115775 DOI: 10.1371/journal.pone.0166682] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/02/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND We hypothesized that L-alpha-glycerylphosphorylcholine (GPC), a deacylatedphosphatidylcholine derivative, can influence the mitochondrial respiratory activity and in this way, may exert tissue protective effects. METHODS Rat liver mitochondria were examined with high-resolution respirometry to analyze the effects of GPC on the electron transport chain in normoxic and anoxic conditions. Besides, Sprague-Dawley rats were subjected to sham operation or standardized liver ischemia-reperfusion (IR), with or without GPC administration. The reduced glutathione (GSH) and oxidized glutathione disulfide (GSSG), the tissue myeloperoxidase, xanthine oxidoreductase and NADPH oxidases activities were measured. Tissue malondialdehyde and nitrite/nitrate formation, together with blood superoxide and hydrogen-peroxide production were assessed. RESULTS GPC increased the efficacy of complex I-linked mitochondrial oxygen consumption, with significantly lower in vitro leak respiration. Mechanistically, liver IR injury was accompanied by deteriorated mitochondrial respiration and enhanced ROS production and, as a consequence, by significantly increased inflammatory enzyme activities. GPC administration decreased the inflammatory activation in line with the reduced oxidative and nitrosative stress markers. CONCLUSION GPC, by preserving the mitochondrial complex I function respiration, reduced the biochemical signs of oxidative stress after an IR episode. This suggests that GPC is a mitochondria-targeted compound that indirectly suppresses the activity of major intracellular superoxide-generating enzymes.
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Affiliation(s)
- Gerda Strifler
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Eszter Tuboly
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Anikó Görbe
- Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - Mihály Boros
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Daniella Pécz
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
| | - Petra Hartmann
- Institute of Surgical Research, University of Szeged, Szeged, Hungary
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63
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Matas-Rico E, van Veen M, Moolenaar WH. Neuronal differentiation through GPI-anchor cleavage. Cell Cycle 2016; 16:388-389. [PMID: 27860541 DOI: 10.1080/15384101.2016.1259894] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- Elisa Matas-Rico
- a Division of Cell Biology , The Netherlands Cancer Institute , Amsterdam , The Netherlands
| | - Michiel van Veen
- a Division of Cell Biology , The Netherlands Cancer Institute , Amsterdam , The Netherlands
| | - Wouter H Moolenaar
- a Division of Cell Biology , The Netherlands Cancer Institute , Amsterdam , The Netherlands
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64
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Jorge AM, Schneider J, Unsleber S, Göhring N, Mayer C, Peschel A. Utilization of glycerophosphodiesters by Staphylococcus aureus. Mol Microbiol 2016; 103:229-241. [PMID: 27726204 DOI: 10.1111/mmi.13552] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2016] [Indexed: 01/02/2023]
Abstract
The facultative pathogen Staphylococcus aureus colonizes the human anterior nares and causes infections of various organ systems. Which carbon, energy, and phosphate sources can be utilized by S. aureus in nutrient-poor habitats has remained largely unknown. We describe that S. aureus secretes a glycerophosphodiesterase (glycerophosphodiester phosphodiesterase, EC 3.1.4.46), GlpQ, degrading the glycerophosphodiester (GPD) head groups of phospholipids such as human phosphatidylcholine (GroPC). Deletion of glpQ completely abolished the GroPC-degrading activity in S. aureus culture supernatants. GroPC has been detected in human tissues and body fluids probably as a result of phospholipid remodelling and degradation. Notably, GroPC promoted S. aureus growth under carbon- and phosphate-limiting conditions in a GlpQ-dependent manner indicating that GlpQ permits S. aureus to utilize GPD-derived glycerol-3-phosphate as a carbon and phosphate sources. Thus, S. aureus can use a broader spectrum of nutrients than previously thought which underscores its capacity to adapt to the highly variable and nutrient-poor surroundings.
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Affiliation(s)
- Ana Maria Jorge
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology Department, University of Tübingen, Germany
| | - Jonathan Schneider
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology Department, University of Tübingen, Germany
| | - Sandra Unsleber
- Interfaculty Institute of Microbiology and Infection Medicine, Microbiology/Biotechnology Department, University of Tübingen, Germany
| | - Nadine Göhring
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology Department, University of Tübingen, Germany
| | - Christoph Mayer
- Interfaculty Institute of Microbiology and Infection Medicine, Microbiology/Biotechnology Department, University of Tübingen, Germany
| | - Andreas Peschel
- Interfaculty Institute of Microbiology and Infection Medicine, Infection Biology Department, University of Tübingen, Germany
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65
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Matas-Rico E, van Veen M, Leyton-Puig D, van den Berg J, Koster J, Kedziora KM, Molenaar B, Weerts MJA, de Rink I, Medema RH, Giepmans BNG, Perrakis A, Jalink K, Versteeg R, Moolenaar WH. Glycerophosphodiesterase GDE2 Promotes Neuroblastoma Differentiation through Glypican Release and Is a Marker of Clinical Outcome. Cancer Cell 2016; 30:548-562. [PMID: 27693046 DOI: 10.1016/j.ccell.2016.08.016] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 06/06/2016] [Accepted: 08/26/2016] [Indexed: 02/06/2023]
Abstract
Neuroblastoma is a pediatric embryonal malignancy characterized by impaired neuronal differentiation. A better understanding of neuroblastoma differentiation is essential for developing new therapeutic approaches. GDE2 (encoded by GDPD5) is a six-transmembrane-domain glycerophosphodiesterase that promotes embryonic neurogenesis. We find that high GDPD5 expression is strongly associated with favorable outcome in neuroblastoma. GDE2 induces differentiation of neuroblastoma cells, suppresses cell motility, and opposes RhoA-driven neurite retraction. GDE2 alters the Rac-RhoA activity balance and the expression of multiple differentiation-associated genes. Mechanistically, GDE2 acts by cleaving (in cis) and releasing glycosylphosphatidylinositol-anchored glypican-6, a putative co-receptor. A single point mutation in the ectodomain abolishes GDE2 function. Our results reveal GDE2 as a cell-autonomous inducer of neuroblastoma differentiation with prognostic significance and potential therapeutic value.
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Affiliation(s)
- Elisa Matas-Rico
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Michiel van Veen
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Daniela Leyton-Puig
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Jeroen van den Berg
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Jan Koster
- Department of Oncogenomics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Katarzyna M Kedziora
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Bas Molenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Marjolein J A Weerts
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Iris de Rink
- Deep Sequencing Core Facility, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - René H Medema
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Ben N G Giepmans
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Anastassis Perrakis
- Division of Biochemistry, The Netherlands Cancer Institute, 1066 CX Amsterdam, the Netherlands
| | - Kees Jalink
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands
| | - Rogier Versteeg
- Department of Oncogenomics, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, the Netherlands
| | - Wouter H Moolenaar
- Division of Cell Biology, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands.
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66
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Cornelissen A, Sadovskaya I, Vinogradov E, Blangy S, Spinelli S, Casey E, Mahony J, Noben JP, Dal Bello F, Cambillau C, van Sinderen D. The Baseplate of Lactobacillus delbrueckii Bacteriophage Ld17 Harbors a Glycerophosphodiesterase. J Biol Chem 2016; 291:16816-27. [PMID: 27268053 PMCID: PMC4974393 DOI: 10.1074/jbc.m116.728279] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 05/25/2016] [Indexed: 11/06/2022] Open
Abstract
Glycerophosphodiester phosphodiesterases (GDPDs; EC 3.1.4.46) typically hydrolyze glycerophosphodiesters to sn-glycerol 3-phosphate (Gro3P) and their corresponding alcohol during patho/physiological processes in bacteria and eukaryotes. GDPD(-like) domains were identified in the structural particle of bacterial viruses (bacteriophages) specifically infecting Gram-positive bacteria. The GDPD of phage 17 (Ld17; GDPDLd17), representative of the group b Lactobacillus delbrueckii subsp. bulgaricus (Ldb)-infecting bacteriophages, was shown to hydrolyze, besides the simple glycerophosphodiester, two complex surface-associated carbohydrates of the Ldb17 cell envelope: the Gro3P decoration of the major surface polysaccharide d-galactan and the oligo(glycerol phosphate) backbone of the partially glycosylated cell wall teichoic acid, a minor Ldb17 cell envelope component. Degradation of cell wall teichoic acid occurs according to an exolytic mechanism, and Gro3P substitution is presumed to be inhibitory for GDPDLd17 activity. The presence of the GDPDLd17 homotrimer in the viral baseplate structure involved in phage-host interaction together with the dependence of native GDPD activity, adsorption, and efficiency of plating of Ca(2+) ions supports a role for GDPDLd17 activity during phage adsorption and/or phage genome injection. In contrast to GDPDLd17, we could not identify any enzymatic activity for the GDPD-like domain in the neck passage structure of phage 340, a 936-type Lactococcus lactis subsp. lactis bacteriophage.
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Affiliation(s)
| | - Irina Sadovskaya
- Equipe Biochimie des Produits Aquatiques, Université du Littoral-Côte d'Opale, Boulevard du Bassin Napoléon, BP 120, 62327 Boulogne-sur-mer, France
| | | | - Stéphanie Blangy
- Aix-Marseille Université, Architecture et Fonction des Macromolécules Biologiques, Campus de Luminy, 13288 Marseille Cedex 09, France, CNRS, Architecture et Fonction des Macromolécules Biologiques, UMR 6098, Campus de Luminy, 13288 Marseille Cedex 09, France
| | - Silvia Spinelli
- Aix-Marseille Université, Architecture et Fonction des Macromolécules Biologiques, Campus de Luminy, 13288 Marseille Cedex 09, France, CNRS, Architecture et Fonction des Macromolécules Biologiques, UMR 6098, Campus de Luminy, 13288 Marseille Cedex 09, France
| | | | | | - Jean-Paul Noben
- Biomedical Research Institute (Biomed) and School of Life Sciences, Transnationale Universiteit Limburg, Hasselt University, Agoralaan-Building C, BE-3590 Diepenbeek, Belgium, and
| | | | - Christian Cambillau
- Aix-Marseille Université, Architecture et Fonction des Macromolécules Biologiques, Campus de Luminy, 13288 Marseille Cedex 09, France, CNRS, Architecture et Fonction des Macromolécules Biologiques, UMR 6098, Campus de Luminy, 13288 Marseille Cedex 09, France
| | - Douwe van Sinderen
- From the School of Microbiology and APC Microbiome Institute, University College Cork, Cork, Ireland,
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67
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Mehra P, Giri J. Rice and chickpea GDPDs are preferentially influenced by low phosphate and CaGDPD1 encodes an active glycerophosphodiester phosphodiesterase enzyme. PLANT CELL REPORTS 2016; 35:1699-1717. [PMID: 27108120 DOI: 10.1007/s00299-016-1984-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 04/13/2016] [Indexed: 06/05/2023]
Abstract
Rice and chickpea GDPD s are transcriptionally influenced by mineral deficiencies; especially, by phosphate starvation and CaGDP1 encodes an active glycerophosphodiester phosphodiesterase enzyme. Glycerophosphodiester phosphodiesterases (GDPDs) are enzymes involved in the degradation of glycerophosphodiesters into sn-glycerol-3-phosphate and corresponding alcohols. These phospholipid remodeling genes have been suggested to play important roles in phosphate homeostasis. However, comprehensive information about the role of GDPDs under low phosphate (P) and other nutrient deficiencies (N, K, Fe, Zn) in rice and chickpea is missing. Here, we identified 13 OsGDPDs and 6 CaGDPDs in rice and chickpea, respectively, and partly characterized their roles in multiple nutrient stresses. Expression profiling after 7 and 15 days of deficiency treatments revealed unique and overlapping differential expression patterns of OsGDPDs and CaGDPDs under different nutrient stresses. Principal component analysis on the expression patterns of OsGDPDs and CaGDPDs revealed their preferential role in P starvation. Some of the GDPDs were also induced by N, K, Fe and Zn deficiency in temporal manner in both crops suggesting their roles in multiple nutrient stresses. Biochemical characterization of highly responsive chickpea GDPD, CaGDPD1, confirmed its in vitro GDPD activity and revealed its optimal temperature, pH and cofactor requirements. Further, CaGDPD1 showed its accumulation in ER and endomembranes. We hereby propose CaGDPD1 and various OsGDPDs as low P responsive marker genes in chickpea and rice, respectively. Our data uphold role of GDPDs in multinutrient responses and suggest them as candidates for rice and chickpea improvement for tolerance to various nutrient deficiencies.
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Affiliation(s)
- P Mehra
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - J Giri
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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68
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Fujihara Y, Ikawa M. GPI-AP release in cellular, developmental, and reproductive biology. J Lipid Res 2015; 57:538-45. [PMID: 26593072 DOI: 10.1194/jlr.r063032] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Indexed: 12/13/2022] Open
Abstract
Glycosylphosphatidylinositol-anchored proteins (GPI-APs) contain a covalently linked GPI anchor located on outer cell membranes. GPI-APs are ubiquitously conserved from protozoa to vertebrates and are critical for physiological events such as development, immunity, and neurogenesis in vertebrates. Both membrane-anchored and soluble GPI-APs play a role in regulating their protein conformation and functional properties. Several pathways mediate the release of GPI-APs from the plasma membrane by vesiculation or cleavage. Phospholipases and putative substrate-specific GPI-AP-releasing enzymes, such as NOTUM, glycerophosphodiesterase 2, and angiotensin-converting enzyme, have been characterized in mammals. Here, the protein modifications resulting from the cleavage of the GPI anchor are discussed in the context of its physiological functions.
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Affiliation(s)
- Yoshitaka Fujihara
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
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69
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Tsuboi K, Okamoto Y, Rahman IAS, Uyama T, Inoue T, Tokumura A, Ueda N. Glycerophosphodiesterase GDE4 as a novel lysophospholipase D: a possible involvement in bioactive N-acylethanolamine biosynthesis. Biochim Biophys Acta Mol Cell Biol Lipids 2015; 1851:537-48. [DOI: 10.1016/j.bbalip.2015.01.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 12/10/2014] [Accepted: 01/05/2015] [Indexed: 11/28/2022]
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70
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Ohshima N, Kudo T, Yamashita Y, Mariggiò S, Araki M, Honda A, Nagano T, Isaji C, Kato N, Corda D, Izumi T, Yanaka N. New members of the mammalian glycerophosphodiester phosphodiesterase family: GDE4 and GDE7 produce lysophosphatidic acid by lysophospholipase D activity. J Biol Chem 2014; 290:4260-71. [PMID: 25528375 DOI: 10.1074/jbc.m114.614537] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The known mammalian glycerophosphodiester phosphodiesterases (GP-PDEs) hydrolyze glycerophosphodiesters. In this study, two novel members of the mammalian GP-PDE family, GDE4 and GDE7, were isolated, and the molecular basis of mammalian GP-PDEs was further explored. The GDE4 and GDE7 sequences are highly homologous and evolutionarily close. GDE4 is expressed in intestinal epithelial cells, spermatids, and macrophages, whereas GDE7 is particularly expressed in gastro-esophageal epithelial cells. Unlike other mammalian GP-PDEs, GDE4 and GDE7 cannot hydrolyze either glycerophosphoinositol or glycerophosphocholine. Unexpectedly, both GDE4 and GDE7 show a lysophospholipase D activity toward lysophosphatidylcholine (lyso-PC). We purified the recombinant GDE4 and GDE7 proteins and show that these enzymes can hydrolyze lyso-PC to produce lysophosphatidic acid (LPA). Further characterization of purified recombinant GDE4 showed that it can also convert lyso-platelet-activating factor (1-O-alkyl-sn-glycero-3-phosphocholine; lyso-PAF) to alkyl-LPA. These data contribute to our current understanding of mammalian GP-PDEs and of their physiological roles via the control of lyso-PC and lyso-PAF metabolism in gastrointestinal epithelial cells and macrophages.
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Affiliation(s)
- Noriyasu Ohshima
- From the Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Takahiro Kudo
- the Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima City 739-8511, Japan, and
| | - Yosuke Yamashita
- the Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima City 739-8511, Japan, and
| | - Stefania Mariggiò
- the Institute of Protein Biochemistry, National Research Council, 80131 Naples, Italy
| | - Mari Araki
- From the Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Ayako Honda
- the Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima City 739-8511, Japan, and
| | - Tomomi Nagano
- the Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima City 739-8511, Japan, and
| | - Chiaki Isaji
- From the Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Norihisa Kato
- the Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima City 739-8511, Japan, and
| | - Daniela Corda
- the Institute of Protein Biochemistry, National Research Council, 80131 Naples, Italy
| | - Takashi Izumi
- From the Department of Biochemistry, Gunma University Graduate School of Medicine, Maebashi, Gunma 371-8511, Japan
| | - Noriyuki Yanaka
- the Department of Molecular and Applied Bioscience, Graduate School of Biosphere Science, Hiroshima University, Higashi-Hiroshima City 739-8511, Japan, and
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