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Yadollahi E, Shareghi B, Farhadian S, Hashemi Shahraki F. Conformational dynamics of trypsin in the presence of caffeic acid: a spectroscopic and computational investigation. J Biomol Struct Dyn 2024; 42:3108-3117. [PMID: 37278377 DOI: 10.1080/07391102.2023.2212077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/01/2023] [Indexed: 06/07/2023]
Abstract
Caffeic acid is one of the widely distributed phenolic compounds in nature and can be found in planet products. On the other hand, trypsin is a vital digestive enzyme in the intestine that plays an essential role in the immune response, blood coagulation, apoptosis and protein maturation like protein digestion. Several studies have revealed the inhibitory effects of the phenolic compound on the digestive enzyme. The present study reports functional and conformational alteration of trypsin after caffeic acid addition using multiple experimental and computational techniques for the first time. The intrinsic fluorescence of trypsin is quenched in the presence of caffeic acid via a static mechanism. The percent of secondary structures (α-helix and β-sheet) of trypsin alter after caffeic acid addition. In the kinetic study, a reduction in the trypsin function is obtained with a lower Vmax and Kcat upon interaction with caffeic acid. The thermal study reveals an unstable structure of trypsin upon complex formation with this phenolic compound. Also, the binding sites and conformational changes of trypsin are elucidated through molecular docking and molecular dynamic simulation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Elham Yadollahi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran
- Central Laboratory, Shahrekord University, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran
- Central Laboratory, Shahrekord University, Shahrekord, Iran
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran
- Central Laboratory, Shahrekord University, Shahrekord, Iran
| | - Fatemeh Hashemi Shahraki
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran
- Central Laboratory, Shahrekord University, Shahrekord, Iran
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2
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Sao Emani C, Reiling N. Spermine enhances the activity of anti-tuberculosis drugs. Microbiol Spectr 2024; 12:e0356823. [PMID: 38095461 PMCID: PMC10782994 DOI: 10.1128/spectrum.03568-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/11/2023] [Indexed: 12/21/2023] Open
Abstract
IMPORTANCE This is the first study that attempted to demonstrate the mechanisms of reactive oxygen species (ROS) generation by spermine (Spm) in Mycobacterium tuberculosis (M.tb). Furthermore, this is the first study to demonstrate that it is able to enhance the activity of currently available and World Health Organization (WHO)-approved tuberculosis (TB) drugs. Spermine can easily be obtained since it is already found in our diet. Moreover, as opposed to conventional antibiotics, it is less toxic to humans since it is found in millimolar concentrations in the body. Finally, with the difficulty of curing TB with conventional antibiotics, this study suggests that less toxic molecules, such as Spm, could in a long-term perspective be incorporated in a TB regimen to boost the treatment.
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Affiliation(s)
- Carine Sao Emani
- Microbial Interface Biology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Norbert Reiling
- Microbial Interface Biology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
- German Center for Infection Research (DZIF), Partner Site Hamburg-Lübeck-Borstel-Riems, Borstel, Germany
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3
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The effect of putrescine on the lysozyme activity and structure: Spectroscopic approaches and molecular dynamic simulation. Colloids Surf B Biointerfaces 2022; 213:112402. [PMID: 35151046 DOI: 10.1016/j.colsurfb.2022.112402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 02/04/2022] [Accepted: 02/05/2022] [Indexed: 10/19/2022]
Abstract
The present research addressed the influence of polyamine (putrescine) on the compound as well as function of lysozyme; accordingly, UV- Visible, fluorescence spectroscopy and simulation method were applied to fulfill this goal. Lysozyme's structural variability was examined at various putrescine concentrations; also, the putrescine binding to lysozyme was addressed using spectrofluorescence, circular dichroism (CD) and UV-Vis measurements. The obtained results indicated that with raising the putrescine concentration, the intrinsic quenching fluorescence of lysozyme was decreased based on the static mechanism. Analysis of thermodynamic parameters also indicated that van der Waals as well as hydrogen bond forces served a fundamental role in determining the resulting stability; this was in agreement with modeling studies. Measurement of UV absorption spectroscopy, fluorescence spectroscopy, and circular dichroism spectroscopy also demonstrated that lysozyme's second and tertiary structures were altered in a putrescine concentration-dependent manner. Putrescine inhibited lysozyme's enzymatic activity, displaying its affinity with the lysozyme's active site. Further, molecular simulation conducted revealed that putrescine could have spontaneous binding to lysozyme, changing its structure, thus further emphasizing the experimental results.
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4
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Ashrafi N, Shareghi B, Farhadian S, Hosseini-Koupaei M. A comparative study of the interaction of naringenin with lysozyme by multi-spectroscopic methods, activity comparisons, and molecular modeling procedures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120931. [PMID: 35085994 DOI: 10.1016/j.saa.2022.120931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 12/31/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
The present study applied steady-state fluorescence, UV-Vis spectrophotometry, molecular docking studies, and circular dichroism (CD) to investigate the interaction of naringenin with lysozyme in an aqueous medium. The UV-Vis measurement indicated the changes in lysozyme secondary and tertiary structure change as a function of the concentration of naringenin. Naringenin could be used to turn the static quenching mechanism into the intrinsic fluorescence of lysozyme. The negative amount of Gibbs free energy (ΔG°) suggested that the binding operation was spontaneous. Fluorescence studies also demonstrated the changes occurring in the Trp microenvironment upon the concatenation into lysozyme. Analysis of thermodynamic parameters also revealed that hydrophobic forces played a fundamental role in determining the complex stability; this was consistent with the previous modeling studies. Circular dichroism also suggested that the alpha-helicity of lysozyme was enhanced as ligand was bound. Naringenin inhibited lysozyme enzymatic activity, displaying its affinity with the lysozyme active site. Further, molecular docking studies demonstrated that naringenin could bind to both residues essential for catalytic activity in the proximity of Trp 62 and Trp 63.
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Affiliation(s)
- Narges Ashrafi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
| | - Sadegh Farhadian
- Department of Biology, Faculty of Science, Shahrekord University, Shahrekord, Iran; Central Laboratory, Shahrekord University, Shahrekord, Iran.
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Navakoudis E, Kotzabasis K. Polyamines: Α bioenergetic smart switch for plant protection and development. JOURNAL OF PLANT PHYSIOLOGY 2022; 270:153618. [PMID: 35051689 DOI: 10.1016/j.jplph.2022.153618] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 05/27/2023]
Abstract
The present review highlights the bioenergetic role of polyamines in plant protection and development and proposes a universal model for describing polyamine-mediated stress responses. Any stress condition induces an excitation pressure on photosystem II by reforming the photosynthetic apparatus. To control this phenomenon, polyamines act directly on the molecular structure and function of the photosynthetic apparatus as well as on the components of the chemiosmotic proton-motive force (ΔpH/Δψ), thus regulating photochemical (qP) and non-photochemical quenching (NPQ) of energy. The review presents the mechanistic characteristics that underline the key role of polyamines in the structure, function, and bioenergetics of the photosynthetic apparatus upon light adaptation and/or under stress conditions. By following this mechanism, it is feasible to make stress-sensitive plants to be tolerant by simply altering their polyamine composition (especially the ratio of putrescine to spermine), either chemically or by light regulation.
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Affiliation(s)
- Eleni Navakoudis
- Department of Biology, University of Crete, Voutes University Campus, 70013, Heraklion, Greece; Department of Chemical Engineering, Cyprus University of Technology, 3603, Limassol, Cyprus
| | - Kiriakos Kotzabasis
- Department of Biology, University of Crete, Voutes University Campus, 70013, Heraklion, Greece.
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Novel fluorescence palladium-alkoxime complexes: Synthesis, characterization, DNA/BSA spectroscopic and docking studies, evaluation of cytotoxicity and DNA cleavage mechanism. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127595] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Study of alkaline phosphatase interaction with putrescine using multi-spectroscopic and docking methods. Colloids Surf B Biointerfaces 2020; 185:110509. [DOI: 10.1016/j.colsurfb.2019.110509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 09/13/2019] [Accepted: 09/14/2019] [Indexed: 12/19/2022]
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8
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Qi F, Qi J, Hu C, Shen L, Yu W, Hu T. Conjugation of staphylokinase with the arabinogalactan-PEG conjugate: Study on the immunogenicity, in vitro bioactivity and pharmacokinetics. Int J Biol Macromol 2019; 131:896-904. [DOI: 10.1016/j.ijbiomac.2019.03.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/06/2019] [Accepted: 03/06/2019] [Indexed: 12/18/2022]
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9
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Spectroscopic and molecular docking studies on the interaction between spermidine and pancreatic elastase. Int J Biol Macromol 2019; 131:473-483. [DOI: 10.1016/j.ijbiomac.2019.03.084] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 02/26/2019] [Accepted: 03/13/2019] [Indexed: 01/30/2023]
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10
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Salehian P, Shareghi B, Hosseini-Koupaei M. Comparative studies on the interaction between biogenic polyamines and bovine intestinal alkaline phosphatases: spectroscopic and theoretical approaches. J Biol Phys 2019; 45:89-106. [PMID: 30734136 DOI: 10.1007/s10867-018-9517-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 12/12/2018] [Indexed: 11/28/2022] Open
Abstract
In this work, the effect of two organic polyamines (spermine and spermidine) on the fluorescence intensity and activity of bovine intestinal alkaline phosphatase (BIALP) are investigated. The interaction of BIALP with spermine and spermidine was studied in a diethanolamine buffer with 0.5 mM magnesium chloride (pH 9.8) and at two temperatures by using the fluorescence quenching method. Furthermore, the activity of enzyme was studied using UV-Vis spectrophotometry in a diethanolamine buffer with 0.5 mM magnesium chloride, at 37 °C, in the absence and presence of different concentrations of each polyamine (0-5 mM). It was demonstrated that both polyamines quenched the intrinsic fluorescence of BIALP by the static quenching process. Based on these results, the values of the binding site for both polyamines were close to each other and decreased by increasing the temperature. The calculated thermodynamic parameters (ΔH° < 0 and ΔS° < 0) also showed that the acting forces in the formation of the complex between BIALP and polyamines were hydrogen bonds and van der Waals forces with an overall favorable Gibbs free energy change (∆G° < 0). In addition, kinetic studies revealed that these polyamines enhanced the enzyme activity of BIALP in a concentration-dependent manner. This result also indicated that spermine had more of an effect on BIALP activity in the same condition. Also, molecular docking as well as thermodynamic parameters showed that hydrogen bonds and van der Waals forces played an important role in the stabilization of BIALP-polyamine complexes.
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Affiliation(s)
- Pegah Salehian
- Department of Biology, Faculty of Science, University of Shahrekord, PO Box 115, Shahrekord, Iran
| | - Behzad Shareghi
- Department of Biology, Faculty of Science, University of Shahrekord, PO Box 115, Shahrekord, Iran.
| | - Mansoore Hosseini-Koupaei
- Department of Biology, Faculty of Science, University of Shahrekord, PO Box 115, Shahrekord, Iran.,Department of Biology, Naghshe Jahan Institute of Higher Education, Isfahan, Iran
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11
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Momeni L, Shareghi B, Farhadian S, Vaziri S, Saboury AA, Raisi F. A molecular simulation and spectroscopic approach to the binding affinity between trypsin and 2-propanol and protein conformation. Int J Biol Macromol 2018; 119:477-485. [DOI: 10.1016/j.ijbiomac.2018.07.162] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/24/2018] [Accepted: 07/25/2018] [Indexed: 01/29/2023]
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Gulshan MA, Tsuji K, Matsumura S, Higuchi T, Umezawa N, Ikawa Y. Distinct modulation of group I ribozyme activity among stereoisomers of a synthetic pentamine with structural constraints. Biochem Biophys Res Commun 2018; 504:698-703. [PMID: 30213632 DOI: 10.1016/j.bbrc.2018.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/03/2018] [Indexed: 11/25/2022]
Abstract
Among cationic molecules that can modulate ribozyme activities, polyamines act as both activator and inhibitor of ribozyme reactions partly due to their structural flexibility. Restriction of structural flexibility of polyamines may allow them to emphasize particular modulation effects. We examined eight stereoisomers of a synthetic pentamine bearing three cyclopentane rings. In the reaction of a structurally unstable group I ribozyme, three stereoisomers exhibited distinct effects as inhibitor, an additive with a neutral effect, and also as an activator.
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Affiliation(s)
- Mst Ara Gulshan
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan; Graduate School of Innovative Life Science, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Kasumi Tsuji
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Shigeyoshi Matsumura
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan; Graduate School of Innovative Life Science, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan
| | - Tsunehiko Higuchi
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Naoki Umezawa
- Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, 467-8603, Japan
| | - Yoshiya Ikawa
- Department of Chemistry, Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan; Graduate School of Innovative Life Science, University of Toyama, Gofuku 3190, Toyama, 930-8555, Japan.
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13
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Cellular and Animal Model Studies on the Growth Inhibitory Effects of Polyamine Analogues on Breast Cancer. Med Sci (Basel) 2018. [PMID: 29533973 PMCID: PMC5872181 DOI: 10.3390/medsci6010024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Polyamine levels are elevated in breast tumors compared to those of adjacent normal tissues. The female sex hormone, estrogen is implicated in the origin and progression of breast cancer. Estrogens stimulate and antiestrogens suppress the expression of polyamine biosynthetic enzyme, ornithine decarboxylate (ODC). Using several bis(ethyl)spermine analogues, we found that these analogues inhibited the proliferation of estrogen receptor-positive and estrogen receptor negative breast cancer cells in culture. There was structure-activity relationship in the efficacy of these compounds in suppressing cell growth. The activity of ODC was inhibited by these compounds, whereas the activity of the catabolizing enzyme, spermidine/spermine N¹-acetyl transferase (SSAT) was increased by 6-fold by bis(ethyl)norspermine in MCF-7 cells. In a transgenic mouse model of breast cancer, bis(ethyl)norspermine reduced the formation and growth of spontaneous mammary tumor. Recent studies indicate that induction of polyamine catabolic enzymes SSAT and spermine oxidase (SMO) play key roles in the anti-proliferative and apoptotic effects of polyamine analogues and their combinations with chemotherapeutic agents such as 5-fluorouracil (5-FU) and paclitaxel. Thus, polyamine catabolic enzymes might be important therapeutic targets and markers of sensitivity in utilizing polyamine analogues in combination with other therapeutic agents.
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14
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The microbiology and treatment of human mastitis. Med Microbiol Immunol 2018; 207:83-94. [PMID: 29350290 DOI: 10.1007/s00430-017-0532-z] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/15/2017] [Indexed: 12/29/2022]
Abstract
Mastitis, which is generally described as an inflammation of breast tissue, is a common and debilitating disease which frequently results in the cessation of exclusive breastfeeding and affects up to 33% of lactating women. The condition is a primary cause of decreased milk production and results in organoleptic and nutritional alterations in milk quality. Recent studies employing culture-independent techniques, including metagenomic sequencing, have revealed a loss of bacterial diversity in the microbiome of mastitic milk samples compared to healthy milk samples. In those infected, the pathogens Staphylococcus aureus, Staphylococcus epidermidis and members of corynebacteria have been identified as the predominant etiological agents in acute, subacute and granulomatous mastitis, respectively. The increased incidence of antibiotic resistance in the causative species is also a key cause of concern for treatment of the disease, thus leading to the need to develop novel therapies. In this respect, probiotics and bacteriocins have revealed potential as alternative treatments.
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Hosseini-Koupaei M, Shareghi B, Saboury AA. Conjugation of biogenic polyamine (putrescine) with proteinase K: Spectroscopic and theoretical insights. Int J Biol Macromol 2017; 98:150-158. [DOI: 10.1016/j.ijbiomac.2017.01.111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 01/21/2017] [Accepted: 01/25/2017] [Indexed: 11/27/2022]
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Hosseini-Koupaei M, Shareghi B, Saboury AA, Davar F. Molecular investigation on the interaction of spermine with proteinase K by multispectroscopic techniques and molecular simulation studies. Int J Biol Macromol 2017; 94:406-414. [DOI: 10.1016/j.ijbiomac.2016.10.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 09/30/2016] [Accepted: 10/14/2016] [Indexed: 11/17/2022]
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17
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A spectroscopic and thermal stability study on the interaction between putrescine and bovine trypsin. Int J Biol Macromol 2017; 94:145-153. [DOI: 10.1016/j.ijbiomac.2016.10.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/02/2016] [Accepted: 10/05/2016] [Indexed: 01/25/2023]
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Mesquita PC, dos Santos-Silva E, Streck L, Damasceno IZ, Maia AMS, Fernandes-Pedrosa MF, da Silva-Júnior AA. Cationic functionalized biocompatible polylactide nanoparticles for slow release of proteins. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.11.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Sánchez-Sevilla L, Mendieta-Condado E, Hernández-Muñoz R. Putrescine treatment reverses α-tocopherol-induced desynchronization of polyamine and retinoid metabolism during rat liver regeneration. J Transl Med 2016; 14:307. [PMID: 27784309 PMCID: PMC5080801 DOI: 10.1186/s12967-016-1062-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/12/2016] [Indexed: 11/10/2022] Open
Abstract
Background The pre-treatment with α-tocopherol inhibits progression of rat liver proliferation induced by partial hepatectomy (PH), by decreasing and/or desynchronizing cyclin D1 expression and activation into the nucleus, activation and nuclear translocation of STAT-1 and -3 proteins and altering retinoid metabolism. Interactions between retinoic acid and polyamines have been reported in the PH-induced rat liver regeneration. Therefore, we evaluated the effect of low dosage of α-tocopherol on PH-induced changes in polyamine metabolism. Methods This study evaluated the participation of polyamine synthesis and metabolism during α-tocopherol-induced inhibition of rat liver regeneration. In PH-rats (Wistar) treated with α-tocopherol and putrescine, parameters indicative of cell proliferation, lipid peroxidation, ornithine decarboxylase expression (ODC), and polyamine levels, were determined. Results Pre-treatment with α-tocopherol to PH-animals exerted an antioxidant effect, shifting earlier the increased ODC activity and expression, temporally affecting polyamine synthesis and ornithine metabolism. Whereas administration of putrescine induced minor changes in PH-rats, the concomitant treatment actually counteracted most of adverse actions exerted by α-tocopherol on the remnant liver, restituting its proliferative potential, without changing its antioxidant effect. Putrescine administration to these rats was also associated with lower ODC expression and activity in the proliferating liver, but the temporally shifting in the amount of liver polyamines induced by α-tocopherol, was also “synchronized” by the putrescine administration. The latter is supported by the fact that a close relationship was observed between fluctuations of polyamines and retinoids. Conclusions Putrescine counteracted most adverse actions exerted by α-tocopherol on rat liver regeneration, restoring liver proliferative potential and restituting the decreased retinoid levels induced by α-tocopherol. Therefore interactions between polyamines and retinol, mediated by the oxidant status, should be taken into consideration in the development of new therapeutic strategies for pathologies occurring with liver cell proliferation.
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Affiliation(s)
- Lourdes Sánchez-Sevilla
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México (UNAM), Apdo. Postal 70-243, 04510, Mexico City, DF, Mexico
| | - Edgar Mendieta-Condado
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México (UNAM), Apdo. Postal 70-243, 04510, Mexico City, DF, Mexico
| | - Rolando Hernández-Muñoz
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México (UNAM), Apdo. Postal 70-243, 04510, Mexico City, DF, Mexico.
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Mastitis Modifies the Biogenic Amines Profile in Human Milk, with Significant Changes in the Presence of Histamine, Putrescine and Spermine. PLoS One 2016; 11:e0162426. [PMID: 27584695 PMCID: PMC5008837 DOI: 10.1371/journal.pone.0162426] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 08/22/2016] [Indexed: 11/19/2022] Open
Abstract
Biogenic amines (BAs) are low molecular weight nitrogenous organic compounds with different biological activities. Putrescine, spermidine and spermine are essential for the development of the gut and immune system of newborns, and are all found in human milk. Little is known, however, about the role of histamine, tyramine or cadaverine in breast milk. Nor is it known whether mastitis alters the BA composition of milk. The BA profile of human milk, and the influence of mastitis on BA concentrations, were therefore investigated. Putrescine, spermidine and spermine were the main BAs detected. In mastitis-affected milk, the concentrations of putrescine, spermine and histamine were higher.
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Hosseini-Koupaei M, Shareghi B, Saboury AA, Davar F, Raisi F. The effect of spermidine on the structure, kinetics and stability of proteinase K: spectroscopic and computational approaches. RSC Adv 2016. [DOI: 10.1039/c6ra20975k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polyamines (such as spermidine) are low molecular weight compounds which can be used as cosolvents in biological and industrial applications.
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Affiliation(s)
| | - Behzad Shareghi
- Department of Biology
- Faculty of Science
- University of Shahrekord
- Shahrekord
- Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics
- University of Tehran
- Tehran
- Iran
- Center of Excellence in Biothermodynamics
| | - Fatemeh Davar
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Iran
| | - Fatame Raisi
- Young Researchers and Elites Club
- Islamic Azad University
- Shahrekord
- Iran
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