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Kalinowska M, van der Lei MB, Kitiashvili M, Mamcarz M, Oliveira MM, Longo F, Klann E. Deletion of Fmr1 in parvalbumin-expressing neurons results in dysregulated translation and selective behavioral deficits associated with fragile X syndrome. Mol Autism 2022; 13:29. [PMID: 35768828 PMCID: PMC9245312 DOI: 10.1186/s13229-022-00509-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 02/07/2022] [Accepted: 06/10/2022] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Fragile X syndrome (FXS), the most common genetic cause of autism spectrum disorder and intellectual disability, is caused by the lack of fragile X mental retardation protein (FMRP) expression. FMRP is an mRNA binding protein with functions in mRNA transport, localization, and translational control. In Fmr1 knockout mice, dysregulated translation has been linked to pathophysiology, including abnormal synaptic function and dendritic morphology, and autistic-like behavioral phenotypes. The role of FMRP in morphology and function of excitatory neurons has been well studied in mice lacking Fmr1, but the impact of Fmr1 deletion on inhibitory neurons remains less characterized. Moreover, the contribution of FMRP in different cell types to FXS pathophysiology is not well defined. We sought to characterize whether FMRP loss in parvalbumin or somatostatin-expressing neurons results in FXS-like deficits in mice. METHODS We used Cre-lox recombinase technology to generate two lines of conditional knockout mice lacking FMRP in either parvalbumin or somatostatin-expressing cells and carried out a battery of behavioral tests to assess motor function, anxiety, repetitive, stereotypic, social behaviors, and learning and memory. In addition, we used fluorescent non-canonical amino acid tagging along with immunostaining to determine whether de novo protein synthesis is dysregulated in parvalbumin or somatostatin-expressing neurons. RESULTS De novo protein synthesis was elevated in hippocampal parvalbumin and somatostatin-expressing inhibitory neurons in Fmr1 knockout mice. Cell type-specific deletion of Fmr1 in parvalbumin-expressing neurons resulted in anxiety-like behavior, impaired social behavior, and dysregulated de novo protein synthesis. In contrast, deletion of Fmr1 in somatostatin-expressing neurons did not result in behavioral abnormalities and did not significantly impact de novo protein synthesis. This is the first report of how loss of FMRP in two specific subtypes of inhibitory neurons is associated with distinct FXS-like abnormalities. LIMITATIONS The mouse models we generated are limited by whole body knockout of FMRP in parvalbumin or somatostatin-expressing cells and further studies are needed to establish a causal relationship between cellular deficits and FXS-like behaviors. CONCLUSIONS Our findings indicate a cell type-specific role for FMRP in parvalbumin-expressing neurons in regulating distinct behavioral features associated with FXS.
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Affiliation(s)
- Magdalena Kalinowska
- grid.137628.90000 0004 1936 8753Center for Neural Science, New York University, New York, NY USA
| | - Mathijs B. van der Lei
- grid.5284.b0000 0001 0790 3681Department of Medical Genetics, University of Antwerp, Antwerp, Belgium
| | - Michael Kitiashvili
- grid.137628.90000 0004 1936 8753Center for Neural Science, New York University, New York, NY USA
| | - Maggie Mamcarz
- grid.137628.90000 0004 1936 8753Center for Neural Science, New York University, New York, NY USA
| | - Mauricio M. Oliveira
- grid.137628.90000 0004 1936 8753Center for Neural Science, New York University, New York, NY USA
| | - Francesco Longo
- grid.8761.80000 0000 9919 9582Institute for Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden ,grid.8761.80000 0000 9919 9582Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Eric Klann
- Center for Neural Science, New York University, New York, NY, USA. .,NYU Neuroscience Institute, New York University Langone Medical Center, New York, NY, USA.
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2
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Kalinowska M, Francesconi A. Group I Metabotropic Glutamate Receptor Interacting Proteins: Fine-Tuning Receptor Functions in Health and Disease. Curr Neuropharmacol 2017; 14:494-503. [PMID: 27296642 PMCID: PMC4983749 DOI: 10.2174/1570159x13666150515234434] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/24/2015] [Accepted: 05/12/2015] [Indexed: 11/22/2022] Open
Abstract
Group I metabotropic glutamate receptors mediate slow excitatory neurotransmission in the central nervous system and are critical to activity-dependent synaptic plasticity, a cellular substrate of learning and memory. Dysregulated receptor signaling is implicated in neuropsychiatric conditions ranging from neurodevelopmental to neurodegenerative disorders. Importantly, group I metabotropic glutamate receptor signaling functions can be modulated by interacting proteins that mediate receptor trafficking, expression and coupling efficiency to signaling effectors. These interactions afford cell- or pathway-specific modulation to fine-tune receptor function, thus representing a potential target for pharmacological interventions in pathological conditions.
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Affiliation(s)
| | - Anna Francesconi
- Dominick P. Purpura Department of Neuroscience, Rose F. Kennedy Center, Room 706, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA.
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3
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Kalinowska M, Mazur L, Regulska E, Korczak A, Świderski G, Lewandowski W. Calcium complex of 2,5-dihydroxybenzoic acid (gentisic acid): synthesis, crystal structure, and spectroscopic properties. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1197389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. Kalinowska
- Division of Chemistry, Bialystok University of Technology, Bialystok, Poland
| | - L. Mazur
- Department of General and Coordination Chemistry, Maria Curie-Sklodowska University, Lublin, Poland
| | - E. Regulska
- Division of Chemistry, Bialystok University of Technology, Bialystok, Poland
| | - A. Korczak
- Institut des Sciences at Techniques, University of Mont HouyLe Mont Houy, Valenciennes, France
| | - G. Świderski
- Division of Chemistry, Bialystok University of Technology, Bialystok, Poland
| | - W. Lewandowski
- Division of Chemistry, Bialystok University of Technology, Bialystok, Poland
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4
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Widlak P, Mrukwa G, Kalinowska M, Pietrowska M, Chekan M, Wierzgon J, Gawin M, Drazek G, Polanska J. Detection of molecular signatures of oral squamous cell carcinoma and normal epithelium - application of a novel methodology for unsupervised segmentation of imaging mass spectrometry data. Proteomics 2016; 16:1613-21. [PMID: 27168173 PMCID: PMC5074322 DOI: 10.1002/pmic.201500458] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/11/2016] [Accepted: 02/24/2016] [Indexed: 01/16/2023]
Abstract
Intra-tumor heterogeneity is a vivid problem of molecular oncology that could be addressed by imaging mass spectrometry. Here we aimed to assess molecular heterogeneity of oral squamous cell carcinoma and to detect signatures discriminating normal and cancerous epithelium. Tryptic peptides were analyzed by MALDI-IMS in tissue specimens from five patients with oral cancer. Novel algorithm of IMS data analysis was developed and implemented, which included Gaussian mixture modeling for detection of spectral components and iterative k-means algorithm for unsupervised spectra clustering performed in domain reduced to a subset of the most dispersed components. About 4% of the detected peptides showed significantly different abundances between normal epithelium and tumor, and could be considered as a molecular signature of oral cancer. Moreover, unsupervised clustering revealed two major sub-regions within expert-defined tumor areas. One of them showed molecular similarity with histologically normal epithelium. The other one showed similarity with connective tissue, yet was markedly different from normal epithelium. Pathologist's re-inspection of tissue specimens confirmed distinct features in both tumor sub-regions: foci of actual cancer cells or cancer microenvironment-related cells prevailed in corresponding areas. Hence, molecular differences detected during automated segmentation of IMS data had an apparent reflection in real structures present in tumor.
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Affiliation(s)
- Piotr Widlak
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland
| | - Grzegorz Mrukwa
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Gliwice, Poland
| | - Magdalena Kalinowska
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland
| | - Monika Pietrowska
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland
| | - Mykola Chekan
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland
| | - Janusz Wierzgon
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland
| | - Marta Gawin
- Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology Gliwice Branch, Gliwice, Poland
| | - Grzegorz Drazek
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Gliwice, Poland
| | - Joanna Polanska
- Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Gliwice, Poland
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5
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Samsonowicz M, Kamińska I, Kalinowska M, Lewandowski W. Alkali metal salts of rutin - Synthesis, spectroscopic (FT-IR, FT-Raman, UV-VIS), antioxidant and antimicrobial studies. Spectrochim Acta A Mol Biomol Spectrosc 2015; 151:926-938. [PMID: 26184478 DOI: 10.1016/j.saa.2015.07.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 06/21/2015] [Accepted: 07/06/2015] [Indexed: 06/04/2023]
Abstract
In this work several metal salts of rutin with lithium, sodium, potassium, rubidium and cesium were synthesized. Their molecular structures were discussed on the basis of spectroscopic (FT-IR, FT-Raman, UV-VIS) studies. Optimized geometrical structure of rutin was calculated by B3LYP/6-311++G(∗∗) method and sodium salt of rutin were calculated by B3LYP/LanL2DZ method. Metal chelation change the biological properties of ligand therefore the antioxidant (FRAP and DPPH) and antimicrobial activities (toward Escherichia coli, Staphylococcus aureus, Enterococcus faecium, Proteus vulgaris, Pseudomonas aeruginosa, Klebsiella pneumonia, Candida albicans and Saccharomyces cerevisiae) of alkali metal salts were evaluated and compared with the biological properties of rutin.
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Affiliation(s)
- M Samsonowicz
- Division of Chemistry, Bialystok University of Technology, 29 Zamenhofa Str., 15-435 Bialystok, Poland.
| | - I Kamińska
- Division of Chemistry, Bialystok University of Technology, 29 Zamenhofa Str., 15-435 Bialystok, Poland
| | - M Kalinowska
- Division of Chemistry, Bialystok University of Technology, 29 Zamenhofa Str., 15-435 Bialystok, Poland
| | - W Lewandowski
- Division of Chemistry, Bialystok University of Technology, 29 Zamenhofa Str., 15-435 Bialystok, Poland
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6
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Świderski G, Kalinowska M, Wojtulewski S, Lewandowski W. The experimental and theoretical study on the influence of alkali metals on the electronic charge distribution in five-membered aromatic acids (2-thiophenecarboxylic, 2-furanecarboxylic and 2-pyrrolecarboxylic acids). Polyhedron 2015. [DOI: 10.1016/j.poly.2015.05.014] [Citation(s) in RCA: 6] [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: 11/24/2022]
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7
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Kalinowska M, Chávez AE, Lutzu S, Castillo PE, Bukauskas FF, Francesconi A. Actinin-4 Governs Dendritic Spine Dynamics and Promotes Their Remodeling by Metabotropic Glutamate Receptors. J Biol Chem 2015; 290:15909-20. [PMID: 25944910 DOI: 10.1074/jbc.m115.640136] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Indexed: 11/06/2022] Open
Abstract
Dendritic spines are dynamic, actin-rich protrusions in neurons that undergo remodeling during neuronal development and activity-dependent plasticity within the central nervous system. Although group 1 metabotropic glutamate receptors (mGluRs) are critical for spine remodeling under physiopathological conditions, the molecular components linking receptor activity to structural plasticity remain unknown. Here we identify a Ca(2+)-sensitive actin-binding protein, α-actinin-4, as a novel group 1 mGluR-interacting partner that orchestrates spine dynamics and morphogenesis in primary neurons. Functional silencing of α-actinin-4 abolished spine elongation and turnover stimulated by group 1 mGluRs despite intact surface receptor expression and downstream ERK1/2 signaling. This function of α-actinin-4 in spine dynamics was underscored by gain-of-function phenotypes in untreated neurons. Here α-actinin-4 induced spine head enlargement, a morphological change requiring the C-terminal domain of α-actinin-4 that binds to CaMKII, an interaction we showed to be regulated by group 1 mGluR activation. Our data provide mechanistic insights into spine remodeling by metabotropic signaling and identify α-actinin-4 as a critical effector of structural plasticity within neurons.
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Affiliation(s)
- Magdalena Kalinowska
- From the Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Andrés E Chávez
- From the Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Stefano Lutzu
- From the Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Pablo E Castillo
- From the Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Feliksas F Bukauskas
- From the Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461
| | - Anna Francesconi
- From the Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York 10461
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8
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Bazdar DA, Kalinowska M, Panigrahi S, Sieg SF. Recycled IL-7 Can Be Delivered to Neighboring T Cells. J Immunol 2015; 194:4698-704. [PMID: 25870237 DOI: 10.4049/jimmunol.1400560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 03/12/2015] [Indexed: 01/07/2023]
Abstract
IL-7 is a key homeostatic cytokine that provides signals for T cell survival and proliferation in vivo. In this article, we provide evidence that IL-7 utilization is enhanced by a novel mechanism of cytokine "recycling" during which T cells treated with rIL-7 are rapidly induced to express p-STAT5 and are subsequently able to recycle biologically active cytokine for release to neighboring cells in soluble form. Our observations indicate that the ability of cells to recycle IL-7 is dependent on IL-7R α-chain (CD127) and endocytosis, consistent with a model whereby IL-7 is internalized via receptor interactions before recycling. These observations provide evidence of a novel mechanism that enables cells to optimally use IL-7.
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Affiliation(s)
- Douglas A Bazdar
- Division of Infectious Diseases and HIV Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106; and
| | | | - Soumya Panigrahi
- Division of Infectious Diseases and HIV Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106; and
| | - Scott F Sieg
- Division of Infectious Diseases and HIV Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106; and
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9
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Regulska E, Kalinowska M, Wojtulewski S, Korczak A, Sienkiewicz-Gromiuk J, Rzączyńska Z, Swisłocka R, Lewandowski W. Theoretical (in B3LYP/6-3111++G** level), spectroscopic (FT-IR, FT-Raman) and thermogravimetric studies of gentisic acid and sodium, copper(II) and cadmium(II) gentisates. Spectrochim Acta A Mol Biomol Spectrosc 2014; 132:713-725. [PMID: 24910979 DOI: 10.1016/j.saa.2014.04.191] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/23/2014] [Accepted: 04/30/2014] [Indexed: 06/03/2023]
Abstract
The DFT calculations (B3LYP method with 6-311++G(d,p) mixed with LanL2DZ for transition metals basis sets) for different conformers of 2,5-dihydroxybenzoic acid (gentisic acid), sodium 2,5-dihydroxybenzoate (gentisate) and copper(II) and cadmium(II) gentisates were done. The proposed hydrated structures of transition metal complexes were based on the results of experimental findings. The theoretical geometrical parameters and atomic charge distribution were discussed. Moreover Na, Cu(II) and Cd(II) gentisates were synthesized and the composition of obtained compounds was revealed by means of elemental and thermogravimetric analyses. The FT-IR and FT-Raman spectra of gentisic acid and gentisates were registered and the effect of metals on the electronic charge distribution of ligand was discussed.
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Affiliation(s)
- E Regulska
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland.
| | - M Kalinowska
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
| | - S Wojtulewski
- Institute of Chemistry, University of Bialystok, Hurtowa 1, 15-399 Bialystok, Poland
| | - A Korczak
- Institut des Sciences et Techniques, Université de Valenciennes et du Hainaut-Cambrésis, France
| | - J Sienkiewicz-Gromiuk
- Department of General and Coordination Chemistry, Faculty of Chemistry UMCS, Sq. Maria Curie-Skłodowska 2, Lublin, Poland
| | - Z Rzączyńska
- Department of General and Coordination Chemistry, Faculty of Chemistry UMCS, Sq. Maria Curie-Skłodowska 2, Lublin, Poland
| | - R Swisłocka
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
| | - W Lewandowski
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
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10
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Kalinowska M, Piekut J, Bruss A, Follet C, Sienkiewicz-Gromiuk J, Świsłocka R, Rzączyńska Z, Lewandowski W. Spectroscopic (FT-IR, FT-Raman, 1H, 13C NMR, UV/VIS), thermogravimetric and antimicrobial studies of Ca(II), Mn(II), Cu(II), Zn(II) and Cd(II) complexes of ferulic acid. Spectrochim Acta A Mol Biomol Spectrosc 2014; 122:631-638. [PMID: 24334064 DOI: 10.1016/j.saa.2013.11.089] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 11/08/2013] [Accepted: 11/13/2013] [Indexed: 06/03/2023]
Abstract
The molecular structure of Mn(II), Cu(II), Zn(II), Cd(II) and Ca(II) ferulates (4-hydroxy-3-methoxycinnamates) was studied. The selected metal ferulates were synthesized. Their composition was established by means of elementary and thermogravimetric analysis. The following spectroscopic methods were used: infrared (FT-IR), Raman (FT-Raman), nuclear magnetic resonance ((13)C, (1)H NMR) and ultraviolet-visible (UV/VIS). On the basis of obtained results the electronic charge distribution in studied metal complexes in comparison with ferulic acid molecule was discussed. The microbiological study of ferulic acid and ferulates toward Escherichia coli, Bacillus subtilis, Candida albicans, Pseudomonas aeruginosa, Staphylococcus aureus and Proteus vulgaris was done.
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Affiliation(s)
- M Kalinowska
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland.
| | - J Piekut
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
| | - A Bruss
- University of Valenciennes and Hainaut-Cambrésis, Laboratoire des Matériaux Céramiques et Procédés Associés (LMCPA EA 2443), Le Mont Houy, 59313 Valenciennes, France
| | - C Follet
- University of Valenciennes and Hainaut-Cambrésis, Laboratoire des Matériaux Céramiques et Procédés Associés (LMCPA EA 2443), Le Mont Houy, 59313 Valenciennes, France
| | - J Sienkiewicz-Gromiuk
- Department of General and Coordination Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - R Świsłocka
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
| | - Z Rzączyńska
- Department of General and Coordination Chemistry, Maria Curie-Skłodowska University, Lublin, Poland
| | - W Lewandowski
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland.
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11
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Kalinowska M, Mazur L, Piekut J, Rzączyńska Z, Laderiere B, Lewandowski W. Synthesis, crystal structure, spectroscopic properties, and antimicrobial studies of a zinc(II) complex of p-coumaric acid. J COORD CHEM 2013. [DOI: 10.1080/00958972.2012.756480] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- M. Kalinowska
- a Division of Chemistry , Bialystok University of Technology , Bialystok , Poland
| | - L. Mazur
- b Department of General and Coordinational Chemistry , Maria Curie-Sklodowska University , Lublin , Poland
| | - J. Piekut
- a Division of Chemistry , Bialystok University of Technology , Bialystok , Poland
| | - Z. Rzączyńska
- b Department of General and Coordinational Chemistry , Maria Curie-Sklodowska University , Lublin , Poland
| | - B. Laderiere
- c Institut des Sciences at Techniques , University of Mont Houy , Le Mont Houy, Valenciennes , France
| | - W. Lewandowski
- a Division of Chemistry , Bialystok University of Technology , Bialystok , Poland
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12
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Kalinowska M, Laderiere B, Champagne P, Kowczyk-Sadowy M, Lewandowski W. Mn(II), Cu(II) and Cd(II) p-coumarates: FT-IR, FT-Raman, ¹H and ¹³C NMR and thermogravimetric studies. Spectrochim Acta A Mol Biomol Spectrosc 2013; 103:264-271. [PMID: 23261621 DOI: 10.1016/j.saa.2012.10.060] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 10/19/2012] [Accepted: 10/25/2012] [Indexed: 06/01/2023]
Abstract
Manganese(II), copper(II) and cadmium(II) complexes of p-coumaric acid (p-hydroxycinnamic acid) were synthesized. Their composition was established by means of elementary and thermogravimetric analysis. To study the molecular structure of synthesized compounds many miscellaneous analytical methods, which complement one another, were used: infrared (FT-IR), Raman (FT-Raman) and nuclear magnetic resonance ((1)H, (13)C NMR). The spectroscopic studies lead to conclusions concerning the distribution of the electronic charge in complexes in comparison with p-coumaric acid molecule and the type of metal ion coordination.
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Affiliation(s)
- M Kalinowska
- Division of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
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13
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Świderski G, Kalinowska M, Świsłocka R, Wojtulewski S, Lewandowski W. Spectroscopic (FT-IR, FT-Raman and 1H and 13C NMR) and theoretical in MP2/6-311++G(d,p) and B3LYP/6-311++G(d,p) levels study of benzenesulfonic acid and alkali metal benzenesulfonates. Spectrochim Acta A Mol Biomol Spectrosc 2013; 100:41-50. [PMID: 22406243 DOI: 10.1016/j.saa.2012.02.047] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 01/20/2012] [Accepted: 02/13/2012] [Indexed: 05/31/2023]
Abstract
The FT-IR, FT-Raman and NMR ((1)H and (13)C) spectra of benzenesulfonic acid as well as lithium, sodium, potassium, rubidium and caesium benzenesulfonates were registered, assigned and compared. The molecular structures of ligand and alkali metal salts were discussed. On the basis of quantum mechanical calculations in MP2/6-311++G(d,p) and B3LYP/6-311++G(d,p) levels the geometric parameters, infrared spectra, NMR spectra, the magnetic and geometric aromaticity indices for acid and alkali metal benzenesulfonates and benzoates were obtained. The effect of alkali metal ions on the electronic charge distribution of benzenesulfonic acid was studied and compared with the alkali metal benzoates and benzoic acid.
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Affiliation(s)
- G Świderski
- Department of Chemistry, Bialystok University of Technology, Zamenhofa 29, 15-435 Bialystok, Poland
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14
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Jiang W, Ghosh SK, Flyckt R, Kalinowska M, Starks D, Jurevic R, Weinberg A, Lederman MM, Rodriguez B. Bacterial colonization and beta defensins in the female genital tract in HIV infection. Curr HIV Res 2012; 10:504-12. [PMID: 22716110 DOI: 10.2174/157016212802429848] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 05/15/2012] [Accepted: 06/11/2012] [Indexed: 11/22/2022]
Abstract
Beta defensins are antimicrobial peptides that serve to protect the host from microbial invasion at skin and mucosal surfaces. Here we explore the relationships among beta defensin levels, total bacterial colonization, and colonization by bacterial vaginosis (BV)-related bacteria and lactobacilli in the female genital tract in HIV infected women and healthy controls. Cervicovaginal lavage (CVL) samples were obtained from 30 HIV-infected women and 36 uninfected controls. Quantitative PCR assays were used to measure DNA levels of bacterial 16S ribosomal DNA (reflective of total bacterial load), and levels of three BV-related bacteria, three Lactobacillus species (L. crispatus, L. iners and L. jensenii), and total Lactobacillus levels in CVL. Levels of human beta defensins (hBD-2 and hBD-3) were quantified by ELISA. In viremic HIV+ donors, we found that CVL levels of bacterial 16S rDNA were significantly increased, and inversely correlated with peripheral CD4+ T cell counts in HIV+ women, and inversely correlated with age in both HIV+ women and controls. Although CVL DNA levels of BV-associated bacteria tended to be increased, and CVL levels of Lactobacillus DNAs tended to be decreased in HIV+ donors, none of these differences was significant. CVL levels of hBD-2 and hBD-3 were correlated and were not different in HIV+ women and controls. However, significant positive correlations between hBD-3 levels and total bacterial DNA levels in controls were not demonstrable in HIV+ women; the significant positive correlations of hBD2 or hBD-3 and three Lactobacillus species in controls were also not demonstrable in HIV+ women. These results suggest that HIV infection is associated with impaired regulation of innate defenses at mucosal sites.
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Affiliation(s)
- Wei Jiang
- Division of Infectious Diseases, Department of Medicine, Center for AIDS Research, Case Western Reserve University and University Hospitals/Case Medical Center, 2109 Adelbert Rd, CWRU BRB1048B, 4984, Cleveland, OH 44106, USA.
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15
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Kalinowska M, Piekut J, Lewandowski W. Relationship between chemical structure and biological activity of alkali metal o-, m- and p-anisates. FT-IR and microbiological studies. Spectrochim Acta A Mol Biomol Spectrosc 2011; 82:432-436. [PMID: 21852187 DOI: 10.1016/j.saa.2011.07.074] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 07/20/2011] [Accepted: 07/21/2011] [Indexed: 05/31/2023]
Abstract
In this work we investigated relationship between molecular structure of alkali metal o-, m-, p-anisate molecules and their antimicrobial activity. For this purpose FT-IR spectra for lithium, sodium, potassium, rubidium and caesium anisates in solid state and solution were recorded, assigned and analysed. Microbial activity of studied compounds was tested against Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Proteus vulgaris. In order to evaluate the dependency between chemical structure and biological activity of alkali metal anisates the statistical analysis (multidimensional regression and principal component) was performed for selected wavenumbers from FT-IR spectra and parameters that describe microbial activity of anisates. The obtained statistical equations show the existence of correlation between molecular structure of anisates and their biological properties.
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Affiliation(s)
- M Kalinowska
- Division of Chemistry, Białystok University of Technology, Zamenhofa 29, 15-435 Białystok, Poland
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16
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17
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Świderski G, Wojtulewski S, Kalinowska M, Świsłocka R, Lewandowski W. Effect of alkali metal ions on the pyrrole and pyridine π-electron systems in pyrrole-2-carboxylate and pyridine-2-carboxylate molecules: FT-IR, FT-Raman, NMR and theoretical studies. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [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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18
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Funderburg N, Kalinowska M, Eason J, Goodrich J, Heera J, Mayer H, Rajicic N, Valdez H, Lederman MM. Effects of maraviroc and efavirenz on markers of immune activation and inflammation and associations with CD4+ cell rises in HIV-infected patients. PLoS One 2010; 5:e13188. [PMID: 20949133 PMCID: PMC2950842 DOI: 10.1371/journal.pone.0013188] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Accepted: 08/30/2010] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Maraviroc treatment for HIV-1 infected patients results in larger CD4(+) T cell rises than are attributable to its antiviral activity alone. We investigated whether this is due to modulation of T cell activation and inflammation. METHODS AND FINDINGS Thirty maraviroc-treated patients from the Maraviroc versus Efavirenz Regimens as Initial Therapy (MERIT) study were randomly selected from among those who had CCR5-tropic (R5) HIV on screening and achieved undetectable HIV RNA (<50 copies/mL) by Week 48. Efavirenz-treated controls were matched for baseline characteristics to the maraviroc-treated patients selected for this substudy. Changes in immune activation and inflammation markers were examined for associations with CD4(+) T cell changes. Maraviroc treatment tended to result in more rapid decreases in CD38 expression on CD4(+) T cells and in plasma D-dimer concentrations than did treatment with efavirenz. The proportion of patients with high-sensitivity C-reactive protein >2 µg/mL increased from 45% to 66% in the efavirenz arm, but remained constant in the maraviroc arm (P = 0.033). Decreases in CD38 expression on CD8(+) T cells were correlated with CD4(+) T cell rises for maraviroc treatment (r = -0.4, P = 0.048), but not for treatment with efavirenz. CONCLUSIONS Maraviroc-treated patients had earlier, modest decreases in certain markers of immune activation and inflammation, although in this small study, many of the differences were not statistically significant. Levels of high-sensitivity C-reactive protein remained constant in the maraviroc arm and increased in the efavirenz arm. Decreases in immune activation correlated with increased CD4(+) T cell gains. TRIAL REGISTRATION ClinicalTrials.gov NCT00098293.
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Affiliation(s)
| | | | - James Eason
- Case Western Reserve University, Cleveland, Ohio, United States of America
| | - James Goodrich
- ViiV Healthcare, Research Triangle Park, North Carolina, United States of America
| | - Jayvant Heera
- Pfizer Global Research and Development, New London, Connecticut, United States of America
| | - Howard Mayer
- EMD Serono, Rockland, Massachusetts, United States of America
| | - Natasa Rajicic
- Pfizer Inc, New York, New York, United States of America
| | - Hernan Valdez
- Pfizer Inc, New York, New York, United States of America
- * E-mail:
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19
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Kalinowska M, Świderski G, Lewandowski W. Effect of substituent position and lithium, sodium and potassium on the electronic structure of o-, m- and p-methoxybenzoic acids. Polyhedron 2009. [DOI: 10.1016/j.poly.2009.03.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Bazdar DA, Kalinowska M, Sieg SF. Interleukin-7 receptor signaling is deficient in CD4+ T cells from HIV-infected persons and is inversely associated with aging. J Infect Dis 2009; 199:1019-28. [PMID: 19239367 DOI: 10.1086/597210] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Loss of interleukin-7 (IL-2) receptor expression has been described in T lymphocytes from persons with human immunodeficiency virus (HIV) infection, potentially contributing to perturbations in T cell homeostasis. We investigated IL-7 receptor signaling by measuring signal transducer and activator of transcription 5 (STAT5) phosphorylation in CD4+ T cell subsets from HIV-infected persons. We determined that CD45RA- memory cell subsets (both CD27+ and CD27-) displayed the most robust immediate responses to IL-7, whereas naive CD4+ T cells sustained the signal most efficiently. Memory CD4+ T cells with a terminal phenotype (CD45RA+CD27-) responded poorly to IL-7 stimulation. Defects in signaling were observed in cells from viremic HIV-infected persons and were especially pronounced in CD45RA-CD27- memory subset. Although CD127 expression was diminished for T cells from HIV-infected persons, it was not directly related to IL-7 receptor signaling function. Instead, age was inversely related to IL-7 signaling in cells from both HIV-infected viremic subjects and healthy control subjects. Thus, HIV infection results in impaired IL-7 responsiveness, especially in memory CD4+ T cells, and this defect is likely compounded by aging.
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Affiliation(s)
- Douglas A Bazdar
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Case Western Reserve University, and University Hospitals, Cleveland, Ohio 44106, USA
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21
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Kalinowska M, Świsłocka R, Rzączyńska Z, Sienkiewicz J, Lewandowski W. Spectroscopic (FT-IR, FT-Raman, UV, 1H, and 13C NMR) and theoretical studies of m-anisic acid and lithium, sodium, potassium, rubidium, and caesium m-anisates. J PHYS ORG CHEM 2009. [DOI: 10.1002/poc.1581] [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: 11/06/2022]
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22
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Kalinowska M, Swisłocka R, Borawska M, Piekut J, Lewandowski W. Spectroscopic (FT-IR, FT-Raman, UV) and microbiological studies of di-substituted benzoates of alkali metals. Spectrochim Acta A Mol Biomol Spectrosc 2008; 70:126-35. [PMID: 17890143 DOI: 10.1016/j.saa.2007.07.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 07/11/2007] [Accepted: 07/15/2007] [Indexed: 05/17/2023]
Abstract
The FT-IR, FT-Raman and UV spectra of 3,5-dihydroxybenzoic and 3,5-dichlorobenzoic acids as well as lithium, sodium, potassium, rubidium, caesium 3,5-dihydroxy- and 3,5-dichlorobenzoates were recorded, assigned and compared. The theoretical geometries, Mulliken atomic charges, IR wavenumbers were obtained in B3LYP/6-311++G** level. On the basis of the gathered experimental and theoretical data the effect of metals and substituents on the electronic system of studied compounds were investigated. Moreover, the antimicrobiological activity of studied compounds against two species of bacteria: Bacillus subtilis, Staphylococus aureus and one species of yeast: Candida albicans were studied after 24 and 48 h of incubation. The attempt was made, to find out whether there is any correlation between the first principal component and the degree of growth inhibition exhibited by studied compounds in relation to selected microorganisms.
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Affiliation(s)
- M Kalinowska
- Department of Chemistry, Białystok Technical University, Zamenhofa 29, 15-435 Białystok, Poland
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23
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Kalinowska M, Garncarz W, Pietrowska M, Garrard WT, Widlak P. Regulation of the human apoptotic DNase/RNase endonuclease G: involvement of Hsp70 and ATP. Apoptosis 2007; 10:821-30. [PMID: 16133872 DOI: 10.1007/s10495-005-0410-9] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Endonuclease G (EndoG) is a mitochondrial enzyme that becomes an apoptotic nuclease when released from the mitochondrial intermembrane space. EndoG will digest either DNA or RNA, but at physiological ionic strength, RNA is a much more favorable substrate as compared to chromatin. This indicates that EndoG's major in vivo function(s) may be: (i) an apoptotic RNase, and/or (ii) an apoptotic DNase in the presence of additional co-activators. In the present study we have searched for factors that modulate the activity of human EndoG on DNA substrates. We demonstrate that EndoG forms complexes with AIF and FEN-1 but not with PCNA. Interestingly, heat shock proteins 70 interact with EndoG and are involved in the regulation of its activity. Purified Hsp70 prevented stimulation of EndoG DNase activity by other nuclear factors in the ATP-dependent manner.
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Affiliation(s)
- M Kalinowska
- Department of Experimental and Clinical Radiobiology, Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice, Poland
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Swiderski G, Kalinowska M, Wojtulewski S, Lewandowski W. Experimental (FT-IR, FT-Raman, 1H NMR) and theoretical study of magnesium, calcium, strontium, and barium picolinates. Spectrochim Acta A Mol Biomol Spectrosc 2006; 64:24-33. [PMID: 16098790 DOI: 10.1016/j.saa.2005.06.034] [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] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Revised: 06/17/2005] [Accepted: 06/21/2005] [Indexed: 05/04/2023]
Abstract
The experimental IR, Raman, and 1H NMR spectra of picolinic acid, as well as magnesium, calcium, strontium, and barium picolinates were registered, assigned and studied. Characteristic changes in the spectra of metal picolinates in comparison with the spectrum of ligand were observed, which lead to the conclusion that perturbation of the aromatic system of picolinates increases along with the series Mg-->Ca-->Sr-->Ba. Theoretical structures of beryllium and magnesium picolinates, as well as theoretical IR spectrum of magnesium picolinate were calculated in B3PW91/6-311++G(d, p) level. On the basis of calculated bond lengths in pyridine ring geometric, aromaticity indexes HOMA were calculated. The idea of these indexes is based on the fact that the essential factor in aromatic stabilization is the pi delocalization manifested in: planar geometry, equalization of the bond lengths and angles, and symmetry. The decidedly lower value of HOMA for magnesium picolinate (i.e. 0.545; 0.539) than that for beryllium picolinate (i.e. 0.998; 0.998) indicate higher aromatic properties of Be picolinate than of Mg picolinate. The comparison of theoretical and literature experimental structures of magnesium picolinate was done. The experimental structure contains two water molecules, so the calculations for hydrated magnesium picolinate were carried on, and the influence of coordinated water molecule on the structure of picolinates was discussed. The HOMAs for hydrated experimental and calculated Mg picolinate amount to 0.870; 0.743, and 0.900; 0.890, respectively, whereas for anhydrous structure, it is as described above, i.e. 0.545; 0.539. Thus, the calculations clearly showed that water molecules coordinated to the central atom weakens the effect of metal on the electronic system of ligand.
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Affiliation(s)
- G Swiderski
- Department of Chemistry, Białystok Technical University, Zamenhofa 29, 15-435 Białystok, Poland
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26
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Sikora E, Bielak-Zmijewska A, Magalska A, Piwocka K, Mosieniak G, Kalinowska M, Widlak P, Cymerman IA, Bujnicki JM. Curcumin induces caspase-3-dependent apoptotic pathway but inhibits DNA fragmentation factor 40/caspase-activated DNase endonuclease in human Jurkat cells. Mol Cancer Ther 2006; 5:927-34. [PMID: 16648563 DOI: 10.1158/1535-7163.mct-05-0360] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [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: 11/16/2022]
Abstract
Curcumin is a natural pigment that has been shown to induce cell death in many cancer cells; however, the death mode depends on the cell type and curcumin concentration. Here we show that, in Jurkat cells, 50 micromol/L curcumin severely lowers cell survival and induces initial stage of chromatin condensation. It also induces caspase-3, which is sufficient to cleave DNA fragmentation factor 45 [DFF45/inhibitor of caspase-activated DNase (ICAD)], the inhibitor of DFF40/CAD endonuclease. However, the release of DFF40/CAD from its inhibitor does not lead to oligonucleosomal DNA degradation in curcumin-treated cells. Moreover, curcumin treatment protects cells from UVC-induced oligonucleosomal DNA degradation. In biochemical experiments using recombinant DFF activated with caspase-3, we show that curcumin inhibits plasmid DNA and chromatin degradation although it does not prevent activation of DFF40/CAD endonuclease after its release from the inhibitor. Using DNA-binding assay, we show that curcumin does not disrupt the DNA-DFF40/CAD interaction. Instead, molecular modeling indicates that the inhibitory effect of curcumin on DFF40/CAD activity results from curcumin binding to the active center of DFF40/CAD endonuclease.
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Affiliation(s)
- Ewa Sikora
- Laboratory of Molecular Bases of Aging, Nencki Institute of Experimental Biology, 3 Pasteura, 02-093 Warsaw, Poland.
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Lewandowski W, Kalinowska M, Lewandowska H. The influence of metals on the electronic system of biologically important ligands. Spectroscopic study of benzoates, salicylates, nicotinates and isoorotates. Review. J Inorg Biochem 2005; 99:1407-23. [PMID: 15927261 DOI: 10.1016/j.jinorgbio.2005.04.010] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [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: 11/19/2004] [Revised: 04/12/2005] [Accepted: 04/14/2005] [Indexed: 01/04/2023]
Abstract
This paper reviews the results of the intense experimental and theoretical studies on the influence of selected metals on the electronic system of biologically important molecules such as benzoic, 2-hydroxybenzoic and 3-pyridine carboxylic acids as well as 5-carboxyuracil. The research involved following techniques: infrared (FT-IR), Raman (FT-Raman), FT-IR Ar matrix, electronic absorption spectroscopy (UV/visible), nuclear magnetic resonance ((1)H, (13)C, (15)N, (17)O NMR), X-ray and quantum mechanical calculations. The influence of metals on the electronic system was examined through comparison of the changes in so called "logical series". The exemplary series are: Li-->Na-->K-->Rb-->Cs, Na(I)-->Ca(II)-->La(III)-->Th(IV); Na(I)-->Mg(II)-->Al(III) or long series of La(III) and fourteen lanthanides La(III)-->Ce(III)-->Lu(III). The correlation between the perturbation of the electronic system of ligands and the position of metals in the periodic table was found. The influence of the carboxylic anion structure and the effect of hydration on the perturbation of the electronic system of molecule were also discussed. The partial explanation in what way metals disturb and stabilize electronic system of studied ligands was done. It is necessary to carry out the physico-chemical studies of benzoates, salicylates, 3-pyridine carboxylates and isoorotates in order to understand the nature of the interactions of these compounds with their biological targets (e.g., receptors in the cell or important cell components). The results of this study make possible to predict some properties of a molecule, such as its reactivity, durability of complex compounds, and kinship to enzymes.
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Affiliation(s)
- W Lewandowski
- Department of Chemistry, Białystok Technical University, Zamenhofa 29, 15-435 Białystok, Poland.
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Widlak P, Kalinowska M, Parseghian MH, Lu X, Hansen JC, Garrard WT. The histone H1 C-terminal domain binds to the apoptotic nuclease, DNA fragmentation factor (DFF40/CAD) and stimulates DNA cleavage. Biochemistry 2005; 44:7871-8. [PMID: 15910001 DOI: 10.1021/bi050100n] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [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: 11/30/2022]
Abstract
The apoptotic nuclease, DNA fragmentation factor (DFF40/CAD), is primarily responsible for internucleosomal DNA cleavage during the terminal stages of programmed cell death. Previously, we demonstrated that histone H1 greatly stimulates naked DNA cleavage by this nuclease. Here, we investigate the mechanism of this stimulation with native and recombinant mouse and human histone H1 species. Using a series of truncation mutants of recombinant histone H1-0, we demonstrate that the H1 C-terminal domain (CTD) is responsible for activation of DFF40/CAD. We show further that the intact histone H1-0 CTD and certain synthetic CTD fragments bind to DFF40/CAD and confer upon it an increased ability to bind to DNA. Interestingly, we find that each of the six somatic cell histone H1 isoforms, whose CTDs differ significantly in primary sequence but not amino acid composition, equally activate DFF40/CAD. We conclude that the interactions identified here between the histone H1 CTD and DFF40/CAD target and activate linker DNA cleavage during the terminal stages of apoptosis.
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Affiliation(s)
- Piotr Widlak
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75235, USA
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Lewandowski W, Kalinowska M, Lewandowska H. The influence of halogens on the electronic system of biologically important ligands: spectroscopic study of halogenobenzoic acids, halogenobenzoates and 5-halogenouracils. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.10.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sawicka M, Kalinowska M, Skierski J, Lewandowski W. A review of selected anti-tumour therapeutic agents and reasons for multidrug resistance occurrence. J Pharm Pharmacol 2004; 56:1067-81. [PMID: 15324475 DOI: 10.1211/0022357044265] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
It is assumed that proteins from the ABC family (i.e., glycoprotein P (Pgp)) and a multidrug resistance associated protein (MRP) play a main role in the occurrence of multidrug resistance (MDR) in tumour cells. Other factors that influence the rise of MDR are mechanisms connected with change in the effectiveness of the glutathione cycle and with decrease in expression of topoisomerases I and II. The aim of this review is to characterize drugs applied in anti-tumour therapy and to describe the present state of knowledge concerning the mechanisms of MDR occurrence, as well as the pharmacological agents applied in reducing this phenomenon.
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Affiliation(s)
- M Sawicka
- Department of Chemistry, Biatystok Technical University, Zamenhofa 29, 15-435 Biatystok, Poland
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Lewandowski W, Fuks L, Kalinowska M, Koczoń P. The influence of selected metals on the electronic system of biologically important ligands. Spectrochim Acta A Mol Biomol Spectrosc 2003; 59:3411-3420. [PMID: 14607237 DOI: 10.1016/s1386-1425(03)00166-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The influence of (i) halogens, (ii) different alkaline cations, Li(I), Na(I), K(I), Rb(I) and Cs(I), and (iii) lanthanide cations, Pr(III), Nd(III), Dy(III) and Er(III) on the electronic structure of the aromatic ring as well as of the carboxylic anion of the substituted benzoic acids was investigated. Systematic change (decrease or increase) in the wavenumbers of selected bands along the F-->Cl-->Br-->I series was observed. This change correlates in linear fashion with a decrease in the ionic potential of the halogens. A shift of the selected bands along with the alkaline and the lanthanide metal series was also observed and correlated with the ionic potential of the metal. It was noticed that the increase in the ionic potential of halogen atoms causes a remarkable increase in the difference (Deltanu) between the wavenumbers of nuasym(COO-) and nusym(COO-). Among the halogens the ionic potential is the lowest for iodine and this substituent brings about maximal proximity of the asymmetric and symmetric bands of the carboxylic anion. The change of cation in the molecule causes a characteristic change in the difference (Deltanu) between the wavenumbers of nuasym(COO-) and nusym(COO-) as well. Along with the lanthanide series under study (Pr-->Nd-->Dy-->Er) this difference decreases, while between alkaline cations lithium broadens these bands to the highest degree. The influence of the alkaline and the lanthanide cations on the vibrational structure of the whole molecule was analysed and compared.
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Affiliation(s)
- W Lewandowski
- Department of Chemistry, Bialystok Technical University, Zamenhofa 29, 15-435 Bialystok, Poland.
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Pazkowski C, Kalinowska M, Wojciechowski ZA. Phospholipids modulate the substrate specificity of soluble UDP-glucose:steroid glucosyltransferase from eggplant leaves. Phytochemistry 2001; 58:663-669. [PMID: 11672729 DOI: 10.1016/s0031-9422(01)00292-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
UDP-glucose-dependent glucosylation of solasodine and diosgenin by a soluble, partially purified enzyme fraction from eggplant leaves is affected in a markedly different way by some phospholipids. While glucosylation of diosgenin and some closely related spirostanols, e.g. tigogenin or yamogenin, is strongly inhibited by relatively low concentrations of several phospholipids, the glucosylation of solasodine is unaffected or even slightly stimulated. These effects depend both on the structure of the polar head group and the nature of the acyl chains present in the phospholipid. The most potent inhibitors of diosgenin glucosylation are choline-containing lipids: phosphatidylcholine (PC) and sphingomyelin (SM) but the removal of phosphocholine moiety from these phospholipids by treatment with phospholipase C results in an almost complete recovery of the diosgenin glucoside formation by the enzyme. Significant inhibition of diosgenin glucoside synthesis and stimulation of solasodine glucosylation was found only with PC molecular species containing fatty acids with chain length of 12-18 carbon atoms. PC with shorter or longer acyl chains had little effect on glucosylation of either diosgenin or solasodine. Our results indicate that interaction between the investigated glucosyltransferase and lipids are quite specific and suggest that modulation of the enzyme activity by the nature of the lipid environment may be of importance for regulation of in vivo synthesis of steroidal saponins and glycoalkaloids in eggplant.
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Affiliation(s)
- C Pazkowski
- Department of Biochemistry, Warsaw University, ul. Miecznikowa 1, 02-096, Warsaw, Poland
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Paczkowski C, Kalinowska M, Wojciechowski ZA. UDP-glucose:solasodine glucosyltransferase from eggplant (Solanum melongena L.) leaves: partial purification and characterization. Acta Biochim Pol 1997. [DOI: 10.18388/abp.1997_4438] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Uridine 5'-diphosphoglucose-dependent glucosyltransferase which catalyzes the glycosylation of solasodine i.e. UDP-glucose:solasodine glucosyltransferase, is present in leaves, roots, unripe fruits and unripe seeds of eggplant (Solanum melongena L.). The glucosylation product is chromatographically identical with authentic solasodine 3 beta-D-monoglucoside, a putative intermediate in the biosynthesis of solasodine-based glycoalkaloids characteristic of the eggplant. The enzyme was purified about 50-fold from crude cytosol fraction of eggplant leaves by ammonium sulphate precipitation and column chromatography on Q-Sepharose and Sephadex G-100. The native enzyme has a molecular mass of approx. 55 kDa and pH optimum of 8.5. Divalent metal ions are not required for its activity but the presence of free-SH groups is essential. Besides solasodine (Km = 0.04 microM), the enzyme effectively glucosylates tomatidine, another steroidal alkaloid of the spirosolane type, but it is virtually inactive towards the solanidane-type steroidal alkaloids such as solanidine or demissidine. The enzyme is specific for UDP-glucose (Km = 2.1 microM) since unlabelled ADP-, GDP-, CDP- or TDP-glucose could not effectively compete with UDP-[14C]glucose used as the sugar donor for solasodine glucosylation. Moreover, no synthesis of labelled solasodine galactoside was observed when UDP-[14C]glucose was replaced with UDP-[14C]galactose.
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Paczkowski C, Kalinowska M, Wojciechowski ZA. UDP-glucose:solasodine glucosyltransferase from eggplant (Solanum melongena L.) leaves: partial purification and characterization. Acta Biochim Pol 1997; 44:43-53. [PMID: 9241353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Uridine 5'-diphosphoglucose-dependent glucosyltransferase which catalyzes the glycosylation of solasodine i.e. UDP-glucose:solasodine glucosyltransferase, is present in leaves, roots, unripe fruits and unripe seeds of eggplant (Solanum melongena L.). The glucosylation product is chromatographically identical with authentic solasodine 3 beta-D-monoglucoside, a putative intermediate in the biosynthesis of solasodine-based glycoalkaloids characteristic of the eggplant. The enzyme was purified about 50-fold from crude cytosol fraction of eggplant leaves by ammonium sulphate precipitation and column chromatography on Q-Sepharose and Sephadex G-100. The native enzyme has a molecular mass of approx. 55 kDa and pH optimum of 8.5. Divalent metal ions are not required for its activity but the presence of free-SH groups is essential. Besides solasodine (Km = 0.04 microM), the enzyme effectively glucosylates tomatidine, another steroidal alkaloid of the spirosolane type, but it is virtually inactive towards the solanidane-type steroidal alkaloids such as solanidine or demissidine. The enzyme is specific for UDP-glucose (Km = 2.1 microM) since unlabelled ADP-, GDP-, CDP- or TDP-glucose could not effectively compete with UDP-[14C]glucose used as the sugar donor for solasodine glucosylation. Moreover, no synthesis of labelled solasodine galactoside was observed when UDP-[14C]glucose was replaced with UDP-[14C]galactose.
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Affiliation(s)
- C Paczkowski
- Department of Biochemistry, Warsaw University, Poland
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Lebiedowska MK, Syczewska M, Graff K, Kalinowska M. Application of biomechanical growth models of the quantitative evaluation of the motor system in children. Disabil Rehabil 1996; 18:137-42. [PMID: 8695885 DOI: 10.3109/09638289609166031] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 02/01/2023]
Abstract
To evaluate the effectiveness of rehabilitation methods, and to assess the progress of the rehabilitation process in an individual patient, quantitative methods are necessary. The large number of motor system parameters makes the problem of data collection time-consuming and expensive. A quantitative evaluation of the child's motor system is an assessment of a combination of the growth and rehabilitation processes. The aim of the study was to establish methods of differentiation between these two processes. The chosen anthropometric measures, biomechanical parameters of the lower leg segment, maximal voluntary extension and flexion torques of lower leg and chosen gait parameters, were measured in various groups of healthy children 6-18 years old. Mathematical functions were calculated describing these parameters against developmental parameters (body mass, body stature, age). Using the maximal correlation criterion the best growth parameters were established. Normalized databases for these parameters were developed. It is suggested that, using their approach, differentiation between the influences of growth and rehabilitation processes can be achieved, thus eliminating the need for tedious data collection.
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Affiliation(s)
- M K Lebiedowska
- Child Health Center, Rehabilitation Department, Warsaw, Poland
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Paczkowski C, Kalinowska M, Woldański R, Wojciechowski ZA. Evidence for separate UDP-glucose: spirostanol and UDP-glucose: solasodine glucosyltransferases in Solanum melongena. Adv Exp Med Biol 1996; 404:47-55. [PMID: 8957283 DOI: 10.1007/978-1-4899-1367-8_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- C Paczkowski
- Department of Biochemistry, Warsaw University, Poland
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Nes WD, Janssen GG, Crumley FG, Kalinowska M, Akihisa T. The structural requirements of sterols for membrane function in Saccharomyces cerevisiae. Arch Biochem Biophys 1993; 300:724-33. [PMID: 8434952 DOI: 10.1006/abbi.1993.1100] [Citation(s) in RCA: 78] [Impact Index Per Article: 2.5] [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: 01/30/2023]
Abstract
Cultures of Saccharomyces cerevisiae strain GL7 auxotrophic for sterol were incubated with a series of sterols and sterol-like molecules (tetracyclic and pentacyclic triterpenoids) in order to determine the structural requirements of sterols for bulk membrane function. For growth support, the 3 beta-OH group could not be replaced by H, OMe, OBu, NH2, NHOH, OAc, keto, or 3 alpha-OH. A methyl group at C-14 was neither deleterious nor essential for activity. Removal of the C-4 geminal methyl group was obligatory for activity. Thus, no sterol-like triterpenoid supported growth (e.g., tetrahymanol, lanosterol, and cycloartenol). Growth support required a sterol with the longest methylene segment extending from C-20 not to exceed six contiguous C-atoms and the stereochemistry must be C-20 R. No significance could be attributed to branching at C-20 (i.e., to C-21), C-24 (when alkylated), or C-25 (regarding the isopropyl group). Double bonds in the nucleus were not essential for activity since cholestanol supported growth. In several incubations, the addition of trace levels of dietary ergosterol (0.5 microgram/ml) to the medium was necessary to promote growth and transformation of the bulk sterol to a membrane competent sterol(s).
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Affiliation(s)
- W D Nes
- Microbial Products Research Unit, Richard B. Russell Research Center, Athens, Georgia 30613
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Nes WD, Janssen GG, Norton RA, Kalinowska M, Crumley FG, Tal B, Bergenstrahle A, Jonsson L. Regulation of sterol biosynthesis in sunflower by 24(R,S),25-epiminolanosterol, a novel C-24 methyl transferase inhibitor. Biochem Biophys Res Commun 1991; 177:566-74. [PMID: 2043140 DOI: 10.1016/0006-291x(91)92021-b] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [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: 12/30/2022]
Abstract
Whereas sitosterol and 24(28)-methylene cycloartanol were competitive inhibitors (with Ki = 26 microM and 14 microM, respectively), 24(R,S)-25-epiminolanosterol was found to be a potent non-competitive inhibitor (Ki = 3.0 nM) of the S-adenosyl-L-methionine-C-24 methyl transferase from sunflower embryos. Because the ground state analog, 24(R,S)-oxidolanosterol, failed to inhibit the catalysis and 25-azalanosterol inhibited the catalysis with a Ki of 30 nM we conclude that the aziridine functions in a manner similar to the azasteriod (Rahier, A., et al., J. Biol. Chem. (1984) 259, 15215) as a transition state analog mimicking the carbonium intermediate found in the normal transmethylation reaction. Additionally, we observed that the aziridine inhibited cycloartenol metabolism (the preferred substrate for transmethylation) in cultured sunflower cells and cell growth.
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Affiliation(s)
- W D Nes
- Plant and Fungal Lipid Research, Richard B. Russell Research Center, Athens, Ga. 30613
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