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Platova S, Poliushkevich L, Kulakova M, Nesterenko M, Starunov V, Novikova E. Gotta Go Slow: Two Evolutionarily Distinct Annelids Retain a Common Hedgehog Pathway Composition, Outlining Its Pan-Bilaterian Core. Int J Mol Sci 2022; 23:ijms232214312. [PMID: 36430788 PMCID: PMC9695228 DOI: 10.3390/ijms232214312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 11/19/2022] Open
Abstract
Hedgehog signaling is one of the key regulators of morphogenesis, cell differentiation, and regeneration. While the Hh pathway is present in all bilaterians, it has mainly been studied in model animals such as Drosophila and vertebrates. Despite the conservatism of its core components, mechanisms of signal transduction and additional components vary in Ecdysozoa and Deuterostomia. Vertebrates have multiple copies of the pathway members, which complicates signaling implementation, whereas model ecdysozoans appear to have lost some components due to fast evolution rates. To shed light on the ancestral state of Hh signaling, models from the third clade, Spiralia, are needed. In our research, we analyzed the transcriptomes of two spiralian animals, errantial annelid Platynereis dumerilii (Nereididae) and sedentarian annelid Pygospio elegans (Spionidae). We found that both annelids express almost all Hh pathway components present in Drosophila and mouse. We performed a phylogenetic analysis of the core pathway components and built multiple sequence alignments of the additional key members. Our results imply that the Hh pathway compositions of both annelids share more similarities with vertebrates than with the fruit fly. Possessing an almost complete set of single-copy Hh pathway members, lophotrochozoan signaling composition may reflect the ancestral features of all three bilaterian branches.
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Affiliation(s)
- Sofia Platova
- Faculty of Biology, St. Petersburg State University, Saint Petersburg 199034, Russia
- Zoological Institute RAS, Saint Petersburg 199034, Russia
| | | | - Milana Kulakova
- Faculty of Biology, St. Petersburg State University, Saint Petersburg 199034, Russia
- Zoological Institute RAS, Saint Petersburg 199034, Russia
- Correspondence: (M.K.); (E.N.)
| | | | - Viktor Starunov
- Faculty of Biology, St. Petersburg State University, Saint Petersburg 199034, Russia
- Zoological Institute RAS, Saint Petersburg 199034, Russia
| | - Elena Novikova
- Faculty of Biology, St. Petersburg State University, Saint Petersburg 199034, Russia
- Zoological Institute RAS, Saint Petersburg 199034, Russia
- Correspondence: (M.K.); (E.N.)
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Bissinger R, Petkova-Kirova P, Mykhailova O, Oldenborg PA, Novikova E, Donkor DA, Dietz T, Bhuyan AAM, Sheffield WP, Grau M, Artunc F, Kaestner L, Acker JP, Qadri SM. Thrombospondin-1/CD47 signaling modulates transmembrane cation conductance, survival, and deformability of human red blood cells. Cell Commun Signal 2020; 18:155. [PMID: 32948210 PMCID: PMC7502024 DOI: 10.1186/s12964-020-00651-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 08/24/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Thrombospondin-1 (TSP-1), a Ca2+-binding trimeric glycoprotein secreted by multiple cell types, has been implicated in the pathophysiology of several clinical conditions. Signaling involving TSP-1, through its cognate receptor CD47, orchestrates a wide array of cellular functions including cytoskeletal organization, migration, cell-cell interaction, cell proliferation, autophagy, and apoptosis. In the present study, we investigated the impact of TSP-1/CD47 signaling on Ca2+ dynamics, survival, and deformability of human red blood cells (RBCs). METHODS Whole-cell patch-clamp was employed to examine transmembrane cation conductance. RBC intracellular Ca2+ levels and multiple indices of RBC cell death were determined using cytofluorometry analysis. RBC morphology and microvesiculation were examined using imaging flow cytometry. RBC deformability was measured using laser-assisted optical rotational cell analyzer. RESULTS Exposure of RBCs to recombinant human TSP-1 significantly increased RBC intracellular Ca2+ levels. As judged by electrophysiology experiments, TSP-1 treatment elicited an amiloride-sensitive inward current alluding to a possible Ca2+ influx via non-selective cation channels. Exogenous TSP-1 promoted microparticle shedding as well as enhancing Ca2+- and nitric oxide-mediated RBC cell death. Monoclonal (mouse IgG1) antibody-mediated CD47 ligation using 1F7 recapitulated the cell death-inducing effects of TSP-1. Furthermore, TSP-1 treatment altered RBC cell shape and stiffness (maximum elongation index). CONCLUSIONS Taken together, our data unravel a new role for TSP-1/CD47 signaling in mediating Ca2+ influx into RBCs, a mechanism potentially contributing to their dysfunction in a variety of systemic diseases. Video abstract.
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Affiliation(s)
- Rosi Bissinger
- Department of Internal Medicine, Division of Endocrinology, Diabetology, and Nephrology, Universitätsklinikum Tübingen, Tübingen, Germany
| | | | - Olga Mykhailova
- Centre for Innovation, Canadian Blood Services, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Per-Arne Oldenborg
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Elena Novikova
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - David A Donkor
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Thomas Dietz
- Institute of Molecular and Cellular Sports Medicine, German Sport University of Cologne, Köln, Germany
| | | | - William P Sheffield
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada.,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Marijke Grau
- Institute of Molecular and Cellular Sports Medicine, German Sport University of Cologne, Köln, Germany
| | - Ferruh Artunc
- Department of Internal Medicine, Division of Endocrinology, Diabetology, and Nephrology, Universitätsklinikum Tübingen, Tübingen, Germany.,Institute of Diabetes Research and Metabolic Diseases of the Helmholtz Center Munich at Eberhard-Karls University, Tübingen, Germany.,German Center for Diabetes Research (DZD), Eberhard-Karls University, Tübingen, Germany
| | - Lars Kaestner
- Theoretical Medicine and Biosciences, Saarland University, Homburg, Germany.,Experimental Physics, Saarland University, Saarbruecken, Germany
| | - Jason P Acker
- Centre for Innovation, Canadian Blood Services, Edmonton, AB, Canada.,Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - Syed M Qadri
- Centre for Innovation, Canadian Blood Services, Hamilton, ON, Canada. .,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada. .,Faculty of Health Sciences, Ontario Tech University, Oshawa, ON, Canada.
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Mileyko V, Ivanov M, Novikova E, Telysheva E, Chernenko P, Breder V, Laktionov K, Baranova A. NGS for precision medicine in non-small cell lung cancer: Challenges and opportunities. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw363.67] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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4
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Luo Y, Friese OV, Runnels HA, Khandke L, Zlotnick G, Aulabaugh A, Gore T, Vidunas E, Raso SW, Novikova E, Byrne E, Schlittler M, Stano D, Dufield RL, Kumar S, Anderson AS, Jansen KU, Rouse JC. The Dual Role of Lipids of the Lipoproteins in Trumenba, a Self-Adjuvanting Vaccine Against Meningococcal Meningitis B Disease. AAPS J 2016; 18:1562-1575. [PMID: 27604766 DOI: 10.1208/s12248-016-9979-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 08/17/2016] [Indexed: 01/02/2023]
Abstract
Trumenba (bivalent rLP2086) is a vaccine licensed for the prevention of meningococcal meningitis disease caused by Neisseria meningitidis serogroup B (NmB) in individuals 10-25 years of age in the USA. The vaccine is composed of two factor H binding protein (fHbp) variants that were recombinantly expressed in Escherichia coli as native lipoproteins: rLP2086-A05 and rLP2086-B01. The vaccine was shown to induce potent bactericidal antibodies against a broad range of NmB isolates expressing fHbp that were different in sequence from the fHbp vaccine antigens. Here, we describe the characterization of the vaccine antigens including the elucidation of their structure which is characterized by two distinct motifs, the polypeptide domain and the N-terminal lipid moiety. In the vaccine formulation, the lipoproteins self-associate to form micelles driven by the hydrophobicity of the lipids and limited by the size of the folded polypeptides. The micelles help to increase the structural stability of the lipoproteins in the absence of bacterial cell walls. Analysis of the lipoproteins in Toll-like receptor (TLR) activation assays revealed their TLR2 agonist activity. This activity was lost with removal of the O-linked fatty acids, similar to removal of all lipids, demonstrating that this moiety plays an adjuvant role in immune activation. The thorough understanding of the structure and function of each moiety of the lipoproteins, as well as their relationship, lays the foundation for identifying critical parameters to guide vaccine development and manufacture.
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Affiliation(s)
- Yin Luo
- Pfizer Biotherapeutics Pharmaceutical Sciences, 1 Burtt Rd., Andover, Massachusetts, USA.
| | - Olga V Friese
- Pfizer Biotherapeutics Pharmaceutical Sciences, 700 Chesterfield Pkwy W, St. Louis, Missouri, USA
| | - Herbert A Runnels
- Pfizer Biotherapeutics Pharmaceutical Sciences, 700 Chesterfield Pkwy W, St. Louis, Missouri, USA
| | - Lakshmi Khandke
- Pfizer Vaccine Research and Development, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Gary Zlotnick
- Pfizer Vaccine Research and Development, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Ann Aulabaugh
- Pfizer Worldwide Research, 558 Eastern Point Rd., Groton, Connecticut, USA
| | - Thomas Gore
- Pfizer Biotherapeutics Pharmaceutical Sciences, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Eugene Vidunas
- Pfizer Vaccine Research and Development, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Stephen W Raso
- Pfizer Biotherapeutics Pharmaceutical Sciences, 1 Burtt Rd., Andover, Massachusetts, USA
| | - Elena Novikova
- Pfizer Vaccine Research and Development, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Emilia Byrne
- Pfizer Biotherapeutics Pharmaceutical Sciences, 700 Chesterfield Pkwy W, St. Louis, Missouri, USA
| | - Michael Schlittler
- Pfizer Biotherapeutics Pharmaceutical Sciences, 700 Chesterfield Pkwy W, St. Louis, Missouri, USA
| | - Donald Stano
- Pfizer Biotherapeutics Pharmaceutical Sciences, 700 Chesterfield Pkwy W, St. Louis, Missouri, USA
| | - Robert L Dufield
- Pfizer Biotherapeutics Pharmaceutical Sciences, 1 Burtt Rd., Andover, Massachusetts, USA
| | - Sandeep Kumar
- Pfizer Biotherapeutics Pharmaceutical Sciences, 700 Chesterfield Pkwy W, St. Louis, Missouri, USA
| | - Annaliesa S Anderson
- Pfizer Vaccine Research and Development, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Kathrin U Jansen
- Pfizer Vaccine Research and Development, 401 N. Middletown Rd., Pearl River, New York, USA
| | - Jason C Rouse
- Pfizer Biotherapeutics Pharmaceutical Sciences, 1 Burtt Rd., Andover, Massachusetts, USA.
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Kuzmenkina E, Novikova E, Jangsangthong W, Herzig S. Single-Channel Analysis of the Inhibition of the Calcium Dependent Inactivation by the C-Terminal Modulator Domain of Cav1.3 Channels. Biophys J 2015. [DOI: 10.1016/j.bpj.2014.11.3165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Kranke P, Thompson JP, Dalby PL, Eberhart LH, Novikova E, Johnson BM, Russ SF, Noble R, Brigandi RA. Comparison of vestipitant with ondansetron for the treatment of breakthrough postoperative nausea and vomiting after failed prophylaxis with ondansetron. Br J Anaesth 2014; 114:423-9. [PMID: 25488303 DOI: 10.1093/bja/aeu376] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Postoperative nausea and vomiting (PONV) is common; ondansetron is often used as prophylaxis or for breakthrough episodes. Vestipitant is a neurokinin 1 (NK-1) receptor antagonist that is effective for prophylaxis, but its efficacy for treating established PONV is unknown. This study was performed to evaluate the efficacy and safety of vestipitant, compared with ondansetron for the treatment of breakthrough PONV in patients who had already received prophylactic ondansetron before surgery. METHODS A multicentre, randomized, single-blind (sponsor-open), parallel group study. Of 527 surgical patients, 130 (25%) had breakthrough PONV and were equally randomized to one of six i.v. doses of vestipitant (4-36 mg) or ondansetron 4 mg. The primary endpoint was the rate of patients exhibiting complete response, defined as no emesis and no further rescue medication from 10 min after infusion up to 24 h after surgery or hospital discharge. RESULTS All doses of vestipitant were non-inferior to ondansetron in treating PONV after failed prophylaxis with ondansetron. However, vestipitant was superior to ondansetron in decreasing episodes of postoperative emesis and retching. The complete response rate analysis using Bayesian model averaging indicated that no vestipitant dose was superior to ondansetron. Nausea numerical rating scale scores and the times-to-PONV or discharge were similar between the vestipitant and ondansetron treatment groups. CONCLUSIONS Although overall efficacy was non-inferior between vestipitant and ondansetron, the rate of emesis was lower with vestipitant. These data suggest that vestipitant may be a useful agent for the management of PONV, similar to other NK-1 antagonists. CLINICAL TRIAL REGISTRATION NCT01507194.
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Affiliation(s)
- P Kranke
- Department of Anaesthesia and Critical Care, University Hospitals of Würzburg, Oberdürrbacher Str. 6, D-97080 Würzburg, Germany
| | - J P Thompson
- Department of Anaesthetics, Leicester Royal Infirmary, Leicester, UK
| | - P L Dalby
- Department of Anesthesia, Magee-Women's Hospital, Pittsburgh, PA, USA
| | - L H Eberhart
- Department of Anaesthesiology and Critical Care Medicine, Philipps-University, Marburg, Germany
| | - E Novikova
- Department of Gynecology, Moscow Herzen Oncology Institute, Moscow, Russian Federation
| | - B M Johnson
- GlaxoSmithKline, Research Triangle Park, NC, USA
| | - S F Russ
- GlaxoSmithKline, Research Triangle Park, NC, USA
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7
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Burtscher V, Schicker K, Novikova E, Pöhn B, Stockner T, Kugler C, Singh A, Zeitz C, Lancelot ME, Audo I, Leroy BP, Freissmuth M, Herzig S, Matthes J, Koschak A. Spectrum of Cav1.4 dysfunction in congenital stationary night blindness type 2. Biochim Biophys Acta 2014; 1838:2053-65. [PMID: 24796500 PMCID: PMC4065569 DOI: 10.1016/j.bbamem.2014.04.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/11/2014] [Accepted: 04/23/2014] [Indexed: 11/26/2022]
Abstract
Defective retinal synaptic transmission in patients affected with congenital stationary night blindness type 2 (CSNB2) can result from different dysfunction phenotypes in Cav1.4 L-type calcium channels. Here we investigated two prototypical Cav1.4 variants from either end of the functional spectrum. Using whole-cell and single-channel patch-clamp techniques, we provide analysis of the biophysical characteristics of the point mutation L860P and the C-terminal truncating mutation R1827X. L860P showed a typical loss-of-function phenotype attributed to a reduced number of functional channels expressed at the plasma membrane as implied by gating current and non-stationary noise analyses. This phenotype can be rationalized, because the inserted proline is predicted to break an amphipatic helix close to the transmembrane segment IIIS1 and thus to reduce channel stability and promote misfolding. In fact, L860P was subject to an increased turnover. In contrast, R1827X displayed an apparent gain-of-function phenotype, i.e., due to a hyperpolarizing shift of the IV-curve and increased single-channel activity. However, truncation also resulted in the loss of functional C-terminal modulation and thus unmasked calcium-dependent inactivation. Thus R1827X failed to support continuous calcium influx. Current inactivation curtails the dynamic range of photoreceptors (e.g., when adapting to variation in illumination). Taken together, the analysis of two representative mutations that occur in CSNB2 patients revealed fundamental differences in the underlying defect. These may explain subtle variations in the clinical manifestation and must be taken into account, if channel function is to be restored by pharmacochaperones or related approaches.
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Affiliation(s)
- Verena Burtscher
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Neurophysiology and -pharmacology, Schwarzspanierstrasse 17, 1090 Vienna, Austria
| | - Klaus Schicker
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Neurophysiology and -pharmacology, Schwarzspanierstrasse 17, 1090 Vienna, Austria
| | - Elena Novikova
- University of Cologne, Department of Pharmacology and Center of Molecular Medicine, 50931 Cologne, Germany
| | - Birgit Pöhn
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Neurophysiology and -pharmacology, Schwarzspanierstrasse 17, 1090 Vienna, Austria
| | - Thomas Stockner
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Pharmacology, Währingerstrasse 13A, 1090 Wien, Austria
| | - Christof Kugler
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Neurophysiology and -pharmacology, Schwarzspanierstrasse 17, 1090 Vienna, Austria
| | - Anamika Singh
- University of Innsbruck, Institute of Pharmacy, Pharmacology and Toxicology, Center for Chemistry and Biomedicine, Innrain 80-82/III, 6020 Innsbruck, Austria
| | - Christina Zeitz
- INSERM, UMR_S968, Paris F-75012, France; CNRS, UMR_7210, Paris F-75012, France; UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris F-75012, France
| | - Marie-Elise Lancelot
- INSERM, UMR_S968, Paris F-75012, France; CNRS, UMR_7210, Paris F-75012, France; UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris F-75012, France
| | - Isabelle Audo
- INSERM, UMR_S968, Paris F-75012, France; CNRS, UMR_7210, Paris F-75012, France; UPMC Univ Paris 06, UMR_S 968, Institut de la Vision, Paris F-75012, France; Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, INSERM-DHOS CIC 503, Paris F-75012, France; UCL-Institute of Ophthalmology, 11-43 Bath Street, London EC1V 9EL, UK
| | - Bart Peter Leroy
- Dept of Ophthalmology & Center for Medical Genetics, Ghent University Hospital & Ghent University, 9000 Ghent, Belgium
| | - Michael Freissmuth
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Pharmacology, Währingerstrasse 13A, 1090 Wien, Austria
| | - Stefan Herzig
- University of Cologne, Department of Pharmacology and Center of Molecular Medicine, 50931 Cologne, Germany
| | - Jan Matthes
- University of Cologne, Department of Pharmacology and Center of Molecular Medicine, 50931 Cologne, Germany
| | - Alexandra Koschak
- Medical University Vienna, Center for Physiology and Pharmacology, Department of Neurophysiology and -pharmacology, Schwarzspanierstrasse 17, 1090 Vienna, Austria.
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Sun WH, Xing Q, Yu J, Novikova E, Zhao W, Tang X, Liang T, Redshaw C. Probing the Characteristics of Mono- or Bimetallic (Iron or Cobalt) Complexes Bearing 2,4-Bis(6-iminopyridin-2-yl)-3H-benzazepines: Synthesis, Characterization, and Ethylene Reactivity. Organometallics 2013. [DOI: 10.1021/om301086p] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wen-Hua Sun
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- State Key Laboratory for Oxo Synthesis and
Selective Oxidation, Lanzhou Institute
of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of
China
| | - Qifeng Xing
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Jiangang Yu
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Elena Novikova
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Weizhen Zhao
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Xiubo Tang
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Tongling Liang
- Key laboratory of Engineering Plastics and Beijing National Laboratory
for Molecular Science, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Carl Redshaw
- Department of Chemistry, University of Hull, Hull HU6 7RX, U.K
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Kaye SB, Poole CJ, Dańska-Bidzińska A, Gianni L, Del Conte G, Gorbunova V, Novikova E, Strauss A, Moczko M, McNally VA, Ross G, Vergote I. A randomized phase II study evaluating the combination of carboplatin-based chemotherapy with pertuzumab versus carboplatin-based therapy alone in patients with relapsed, platinum-sensitive ovarian cancer. Ann Oncol 2012; 24:145-52. [PMID: 23002282 DOI: 10.1093/annonc/mds282] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Pertuzumab, a humanized monoclonal antibody targeting human epidermal growth factor receptor (HER)-mediated signalling, has shown activity in ovarian cancer in preclinical models and in the clinic. This randomized phase II study evaluated efficacy and safety of pertuzumab in combination with carboplatin-based chemotherapy in patients with platinum-sensitive, recurrent advanced ovarian cancer. PATIENTS AND METHODS Patients were randomized to receive six cycles of chemotherapy (carboplatin and either paclitaxel (Taxol) or gemcitabine) with or without pertuzumab. The primary end point was progression-free survival (PFS) as determined by Response Evaluation Criteria in Solid Tumors and/or by CA 125 measurements. Secondary end points evaluated the response rate, safety profile, duration of response, time to progression and overall survival for both treatment arms. RESULTS A total of 149 patients received either chemotherapy with pertuzumab (arm A, n=74) or chemotherapy alone (arm B, n=75). There was no significant difference either in median PFS or in the secondary end points between the two arms. No differences were seen in an exploratory biomarker analysis of HER3 mRNA expression between the two arms. Pertuzumab was well tolerated, with no increase in cardiac adverse events compared with chemotherapy alone. CONCLUSIONS The addition of pertuzumab to carboplatin-based chemotherapy did not substantially prolong PFS in unselected patients with platinum-sensitive ovarian cancer.
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Affiliation(s)
- S B Kaye
- CRUK Department of Medical Oncology, The Royal Marsden Hospital and The Institute of Cancer Research, Surrey, UK.
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Perry RJ, Novikova E, Wallace AM, Donaldson MDC. Pitfalls in the diagnosis of 5α-reductase type 2 deficiency during early infancy. Horm Res Paediatr 2011; 75:380-2. [PMID: 21447938 DOI: 10.1159/000324646] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 01/21/2011] [Indexed: 11/19/2022] Open
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Trushina O, Novikova E, Filonenko E, Chissov V, Vorozhtsov G. Photosens PDT at the treatment of virus-associated precancer and non-invasive cervical cancer. Photodiagnosis Photodyn Ther 2011. [DOI: 10.1016/j.pdpdt.2011.03.308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mascioni A, Moy FJ, McNeil LK, Murphy E, Bentley BE, Camarda R, Dilts DA, Fink PS, Gusarova V, Hoiseth SK, Malakian K, Mininni T, Novikova E, Lin S, Sigethy S, Zlotnick GW, Tsao DH. NMR dynamics and antibody recognition of the meningococcal lipidated outer membrane protein LP2086 in micellar solution. Biochimica et Biophysica Acta (BBA) - Biomembranes 2010; 1798:87-93. [DOI: 10.1016/j.bbamem.2009.09.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Revised: 09/24/2009] [Accepted: 09/29/2009] [Indexed: 11/16/2022]
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Mascioni A, Jacob J, Moy F, Dilts D, Fink P, Malakian K, Sigethy S, Wen Y, Novikova E, Zlotnick GW, Tsao DHH. Backbone and side-chain assignment of the lipidated and non-lipidated forms of the meningococcal outer membrane protein LP2086. Biomol NMR Assign 2009; 3:111-113. [PMID: 19636959 DOI: 10.1007/s12104-009-9153-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Accepted: 02/22/2009] [Indexed: 05/28/2023]
Abstract
LP2086 is a lipidated outer membrane protein from Neisseria meningitidis that elicits bactericidal antibodies and represents a promising vaccine candidate against meningococcal infections. Here we report the backbone and side-chain assignment for two forms of LP2086: non-lipidated in aqueous buffer and the lipidated protein in micellar solution.
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Affiliation(s)
- A Mascioni
- Wyeth Research, Structural Biology and Computational Chemistry, 200 Cambridge Park Drive, 02140, Cambridge, MA, USA.
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Mascioni A, Bentley BE, Camarda R, Dilts DA, Fink P, Gusarova V, Hoiseth SK, Jacob J, Lin SL, Malakian K, McNeil LK, Mininni T, Moy F, Murphy E, Novikova E, Sigethy S, Wen Y, Zlotnick GW, Tsao DHH. Structural Basis for the Immunogenic Properties of the Meningococcal Vaccine Candidate LP2086. J Biol Chem 2009; 284:8738-46. [PMID: 19103601 PMCID: PMC2659232 DOI: 10.1074/jbc.m808831200] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Indexed: 11/06/2022] Open
Abstract
LP2086 is a family of outer membrane lipoproteins from Neisseria meningitidis, which elicits bactericidal antibodies and are currently undergoing human clinical trials in a bivalent formulation where each antigen represents one of the two known LP2086 subfamilies. Here we report the NMR structure of the recombinant LP2086 variant B01, a representative of the LP2086 subfamily B. The structure reveals a novel fold composed of two domains: a "taco-shaped" N-terminal beta-sheet and a C-terminal beta-barrel connected by a linker. The structure in micellar solution is consistent with a model of LP2086 anchored to the outer membrane bilayer through its lipidated N terminus. A long flexible chain connects the folded part of the protein to the lipid anchor and acts as spacer, making both domains accessible to the host immune system. Antibodies broadly reactive against members from both subfamilies have been mapped to the N terminus. A surface of subfamily-defining residues was identified on one face of the protein, offering an explanation for the induction of subfamily-specific bactericidal antibodies.
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Affiliation(s)
- Alessandro Mascioni
- Wyeth Research, Structural Biology and Computational Chemistry, Cambridge, Massachusetts 02140 and Wyeth Vaccines Research, Pearl River, New York 10965, USA
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15
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Kaye SB, Poole CJ, Bidzinksi M, Gianni L, Gorbunova V, Novikova E, Strauss A, McNally VA, Ross G, Vergote I. A randomised phase II study evaluating the combination of carboplatin-based chemotherapy with pertuzumab (P) versus carboplatin-based therapy alone in patients with relapsed, platinum sensitive ovarian cancer. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.5520] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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16
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Kulakova M, Bakalenko N, Novikova E, Cook CE, Eliseeva E, Steinmetz PRH, Kostyuchenko RP, Dondua A, Arendt D, Akam M, Andreeva T. Hox gene expression in larval development of the polychaetes Nereis virens and Platynereis dumerilii (Annelida, Lophotrochozoa). Dev Genes Evol 2006; 217:39-54. [PMID: 17180685 DOI: 10.1007/s00427-006-0119-y] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2006] [Accepted: 10/17/2006] [Indexed: 11/30/2022]
Abstract
The bilaterian animals are divided into three great branches: the Deuterostomia, Ecdysozoa, and Lophotrochozoa. The evolution of developmental mechanisms is less studied in the Lophotrochozoa than in the other two clades. We have studied the expression of Hox genes during larval development of two lophotrochozoans, the polychaete annelids Nereis virens and Platynereis dumerilii. As reported previously, the Hox cluster of N. virens consists of at least 11 genes (de Rosa R, Grenier JK, Andreeva T, Cook CE, Adoutte A, Akam M, Carroll SB, Balavoine G, Nature, 399:772-776, 1999; Andreeva TF, Cook C, Korchagina NM, Akam M, Dondua AK, Ontogenez 32:225-233, 2001); we have also cloned nine Hox genes of P. dumerilii. Hox genes are mainly expressed in the descendants of the 2d blastomere, which form the integument of segments, ventral neural ganglia, pre-pygidial growth zone, and the pygidial lobe. Patterns of expression are similar for orthologous genes of both nereids. In Nereis, Hox2, and Hox3 are activated before the blastopore closure, while Hox1 and Hox4 are activated just after this. Hox5 and Post2 are first active during the metatrochophore stage, and Hox7, Lox4, and Lox2 at the late nectochaete stage only. During larval stages, Hox genes are expressed in staggered domains in the developing segments and pygidial lobe. The pattern of expression of Hox cluster genes suggests their involvement in the vectorial regionalization of the larval body along the antero-posterior axis. Hox gene expression in nereids conforms to the canonical patterns postulated for the two other evolutionary branches of the Bilateria, the Ecdysozoa and the Deuterostomia, thus supporting the evolutionary conservatism of the function of Hox genes in development.
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Affiliation(s)
- Milana Kulakova
- Laboratory of Experimental Embryology, Biological Institute of State University of St. Petersburg, Oranienbaumskoe sh. 2, 198504 Starii Petergoff, St. Petersburg, Russia
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17
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Joseph-McCarthy D, Parris K, Huang A, Failli A, Quagliato D, Dushin EG, Novikova E, Severina E, Tuckman M, Petersen PJ, Dean C, Fritz CC, Meshulam T, DeCenzo M, Dick L, McFadyen IJ, Somers WS, Lovering F, Gilbert AM. Use of structure-based drug design approaches to obtain novel anthranilic acid acyl carrier protein synthase inhibitors. J Med Chem 2006; 48:7960-9. [PMID: 16335920 DOI: 10.1021/jm050523n] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Acyl carrier protein synthase (AcpS) catalyzes the transfer of the 4'-phosphopantetheinyl group from the coenzyme A to a serine residue in acyl carrier protein (ACP), thereby activating ACP, an important step in cell wall biosynthesis. The structure-based design of novel anthranilic acid inhibitors of AcpS, a potential antibacterial target, is presented. An initial high-throughput screening lead and numerous analogues were modeled into the available AcpS X-ray structure, opportunities for synthetic modification were identified, and an iterative process of synthetic modification, X-ray complex structure determination with AcpS, biological testing, and further modeling ultimately led to potent inhibitors of the enzyme. Four X-ray complex structures of representative anthranilic acid ligands bound to AcpS are described in detail.
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18
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Gilbert AM, Kirisits M, Toy P, Nunn DS, Failli A, Dushin EG, Novikova E, Petersen PJ, Joseph-McCarthy D, McFadyen I, Fritz CC. Anthranilate 4H-oxazol-5-ones: novel small molecule antibacterial acyl carrier protein synthase (AcpS) inhibitors. Bioorg Med Chem Lett 2004; 14:37-41. [PMID: 14684293 DOI: 10.1016/j.bmcl.2003.10.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
D-optimal design and Projection to Latent Structures (PLS) analysis were used to optimize screening hit 5 (B. subtilis AcpS IC(50): 15 microM, B. subtilis MIC: >200 microM) into a series of 4H-oxazol-5-one, small molecule, antibacterial, AcpS inhibitors. Specifically, 15, 16 and 18 show microM or sub-microM AcpS inhibition (IC(50)s: 15: 1.1 microM, 16: 1.5 microM, 18: 0.27 microM) and moderate antibacterial activity (MICs: 12.5-50 microM) against B. subtilis, E. faecalis ATCC, E. faecalis VRE and S. pneumo+.
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Affiliation(s)
- Adam M Gilbert
- Department of Chemical and Screening Sciences, Wyeth Research, 401N. Middletown Road, Pearl River, NY 10945, USA.
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19
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Novikova E, Korneeva I. EFFECTIVENESS OF NEOADJUVANT CHEMOTHERAPY IN THE TREATMENT OF PROLIFERATED OVARY CANCER. Int J Gynecol Cancer 2003. [DOI: 10.1136/ijgc-00009577-200303001-00149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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20
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Abstract
Metallocarboxypeptidase Z (CPZ), a new member of the regulatory metallocarboxypeptidases, contains a 120-residue cysteine-rich region that has 20-35% amino acid sequence identity to Drosophila and mammalian frizzled proteins. In order to gain insights into the function of CPZ, we have examined the distribution of the protein by immunohistochemistry throughout mouse development. The expression of CPZ peaks at E9-E12, decreases in late gestation and falls further in adult tissues. CPZ expression in amnion cells, cochlear epithelial cells and surrounding mesenchyme, ventricular lining cells in the brain and cartilagenous condensations and surrounding connective tissue in ribs remains at high levels throughout mouse gestation. The expression pattern of CPZ overlaps with the expression pattern of several Wnt genes, consistent with the putative role of CPZ in Wnt signaling.
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Affiliation(s)
- E Novikova
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461-2373, USA
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21
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Hahn P, Novikova E, Scherback L, Janik C, Pavlish O, Arkhipov V, Nicholls J, Müller-Lantzsch N, Gurtsevitch V, Grässer FA. The LMP1 gene isolated from Russian nasopharyngeal carcinoma has no 30-bp deletion. Int J Cancer 2001; 91:815-21. [PMID: 11275985 DOI: 10.1002/1097-0215(200002)9999:9999<::aid-ijc1122>3.0.co;2-w] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The Epstein-Barr virus (EBV) is tightly linked to the induction of undifferentiated nasopharyngeal carcinoma (NPC), a tumour endemic in certain areas of southeast Asia. The LMP1 gene encoded by EBV is a classical oncogene due to its ability to transform rodent fibroblasts. LMP1 is absolutely essential for transformation of B cells by the virus and is one of the few EBV genes found to be expressed in NPC. It was originally shown that the LMP1 gene from NPC harbours a deletion of 30 bp in the 3' part of the gene. However, this deletion is also present in the virus spread in healthy people of the areas endemic for NPC and also in other EBV-positive tumours as well as in healthy carriers. We isolated and sequenced the LMP1 gene obtained from tissue of 7 Russian patients with NPC and 1 German patient with an NPC-like tumour of the parotid gland (PG) and compared them with the LMP1 gene isolated from peripheral blood lymphocytes (PBLs) of 6 Russian and 4 German healthy EBV-positive carriers. Neither the Russian NPC cases nor the German NPC-like tumour harboured an LMP1 gene with the 30-bp deletion, while 1 Russian and 2 German carriers contained the LMP1 gene with the 30-bp deletion. In addition, the LMP1 gene isolated from PBLs of the German patient was virtually identical to the gene isolated from the primary tumour. Functional analysis showed no correlation between the presence or absence of the 30-bp deletion and the level of induction of the transcription factors NFkappaB and jun/AP-1 caused by LMP1. These data indicate that the 30-bp deletion is not a factor predisposing for NPC. Comparison of the DNA sequences revealed that the LMP1 genes present in the NPCs most likely represent the "strain" persisting in the general population.
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Affiliation(s)
- P Hahn
- Institut für Medizinische Mikrobiologie und Hygiene, Abteilung Virologie, Gebäude 47, Universitätskliniken, Homburg/Saar, Germany
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22
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Listowsky I, Rowe JD, Patskovsky YV, Tchaikovskaya T, Shintani N, Novikova E, Nieves E. Human testicular glutathione S-transferases: insights into tissue-specific expression of the diverse subunit classes. Chem Biol Interact 1998; 111-112:103-12. [PMID: 9679547 DOI: 10.1016/s0009-2797(97)00154-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cytosolic glutathione S-transferase (GST) subunits from human testis were resolved by HPLC and unambiguously identified by combined use of peptide sequence-specific antisera and electrospray ionization mass spectrometry (ESI MS). Allelic variants of hGSTP1, hGSTM1 and hGSTA2 were distinguished on the basis of observed differences in their molecular masses. Relative amounts of the multiple different subunit types in various human tissues were determined from HPLC profiles. From this type of analysis, tissues from hGSTM1 null allele individuals were readily discerned at the protein level; liver was the only tissue in which the hGSTM1 subunit was the major mu-class GST. hGSTM4 and hGSTM5 subunits were found at very low levels in all tissues examined. By far the tissue richest in the unique hGSTM3 subunit was testis, although brain also has significant levels.
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Affiliation(s)
- I Listowsky
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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23
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Rowe JD, Patskovsky YV, Patskovska LN, Novikova E, Listowsky I. Rationale for reclassification of a distinctive subdivision of mammalian class Mu glutathione S-transferases that are primarily expressed in testis. J Biol Chem 1998; 273:9593-601. [PMID: 9545290 DOI: 10.1074/jbc.273.16.9593] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A rat testicular Mu-class glutathione S-transferase (GST) resolved by reversed-phase high performance liquid chromatography cross-reacted with peptide sequence-specific antisera raised against the human hGSTM3 subunit. Electrospray ionization mass spectrometry indicated that this rat GST subunit (designated rGSTM5 in this report) has a significantly greater molecular mass (26,541 Da) than the other rat GST subunits. The mouse homologue (mGSTM5 subunit) was also identified and characterized by high performance liquid chromatography and electrospray ionization mass spectrometry. Sequence analysis of rGSTM5 peptide fragments and the sequence deduced from a cDNA clone showed that the protein is highly homologous to the hGSTM3 and murine mGSTM5 subunits. All three GSTs of this subclass have N- and C-terminal extensions with C-terminal cysteine residues, but the two penultimate amino acids near the C terminus are divergent in the three species. The proteins of this class Mu subfamily have similar catalytic specificities and mechanisms, are all cysteine rich, are found mainly in testis, and share characteristics that distinguish them from other GSTs. Moreover, the rGSTM5 subunit isolated from rat testis was not found in heterodimeric combination with other common Mu-class GST subunits. As the rGSTM5, mGSTM5, and hGSTM3 subunits are structurally more closely related to each other than they are to other Mu GSTs, it is proposed that they be considered a functionally distinct and separate subfamily within class Mu. The identification of this unique mammalian GST subclass could advance strategies for interspecies comparisons of GSTs and provides a rodent model for studies on functions and regulatory mechanisms for human GSTs.
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Affiliation(s)
- J D Rowe
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, New York 10461, USA
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