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Rosenlöcher J, Sandig G, Kannicht C, Blanchard V, Reinke SO, Hinderlich S. Recombinant glycoproteins: The impact of cell lines and culture conditions on the generation of protein species. J Proteomics 2016; 134:85-92. [DOI: 10.1016/j.jprot.2015.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/31/2015] [Accepted: 08/18/2015] [Indexed: 10/23/2022]
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Nakayama R, Kuroda J, Taniyama N, Yamamoto-Sugitani M, Wada S, Kiyota M, Mizutani S, Chinen Y, Matsumoto Y, Nagoshi H, Shimura Y, Kobayashi T, Horiike S, Sato K, Taniwaki M. Suppression of SERPINA1-albumin complex formation by galectin-3 overexpression leads to paracrine growth promotion of chronic myelogenous leukemia cells. Leuk Res 2013; 38:103-8. [PMID: 23953881 DOI: 10.1016/j.leukres.2013.07.026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 07/12/2013] [Indexed: 01/08/2023]
Abstract
Galectin-3 is induced in chronic myelogenous leukemia (CML) cells by co-culture with bone marrow stromal cells, making paracrine growth promotion of CML cells in conditioned medium (CM) from galectin-3 overexpressing CML cells more potent. We used gel filtration chromatography to demonstrate that the bovine SERPINA1-fetal bovine serum albumin (BSA) complex was specifically suppressed in CM from galectin-3 overexpressing cells. The SERPINA1-BSA complex as well as human plasma SERPINA1 inhibited the growth of CML cells, while exogenous galectin-3 partly offset this effect. These findings suggest that galectin-3 overexpression promotes paracrine growth of CML cells by interfering with the action of the growth inhibitory SERPINA1-albumin complex.
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Affiliation(s)
- Ryuko Nakayama
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Junya Kuroda
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Nobuko Taniyama
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Mio Yamamoto-Sugitani
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Sayori Wada
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Miki Kiyota
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shinsuke Mizutani
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshiaki Chinen
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yosuke Matsumoto
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hisao Nagoshi
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuji Shimura
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tsutomu Kobayashi
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shigeo Horiike
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Sato
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Masafumi Taniwaki
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Streptococcal pyogenic exotoxin B (SpeB) boosts the contact system via binding of α-1 antitrypsin. Biochem J 2011; 434:123-32. [DOI: 10.1042/bj20100984] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The Streptococcus pyogenes cysteine protease SpeB (streptococcal pyrogenic exotoxin B) is important for the invasive potential of the bacteria, but its production is down-regulated following systemic infection. This prompted us to investigate if SpeB potentiated the host immune response after systemic spreading. Addition of SpeB to human plasma increased plasma-mediated bacterial killing and prolonged coagulation time through the intrinsic pathway of coagulation. This effect was independent of the enzymatic activity of SpeB and was mediated by a non-covalent medium-affinity binding and modification of the serpin A1AT (α-1 antitrypsin). Consequently, addition of A1AT to plasma increased bacterial survival. Sequestration of A1AT by SpeB led to enhanced contact system activation, supported by increased bacterial growth in prekallikrein deficient plasma. In a mouse model of systemic infection, administration of SpeB reduced significantly bacterial dissemination. The findings reveal an additional layer of complexity to host–microbe interactions that may be of benefit in the treatment of severe bacterial infections.
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Boaglio A, Bassani G, Picó G, Nerli B. Features of the milk whey protein partitioning in polyethyleneglycol-sodium citrate aqueous two-phase systems with the goal of isolating human alpha-1 antitrypsin expressed in bovine milk. J Chromatogr B Analyt Technol Biomed Life Sci 2006; 837:18-23. [PMID: 16644293 DOI: 10.1016/j.jchromb.2006.03.049] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2005] [Revised: 02/16/2006] [Accepted: 03/22/2006] [Indexed: 11/17/2022]
Abstract
Partitioning behaviour of the bovine whey proteins (bovine serum albumin, alpha-lactoalbumin and beta-lactoglobulin) and human alpha-1 antitrypsin in aqueous two-phase systems prepared with polyethyleneglycol (molecular masses: 1000, 1450 and 3350)-sodium citrate was analysed at pH 5.2, 6.2 and 8.2. Alpha lactoalbumin concentrated in the polyethyleneglycol rich-phase, while beta-lactoglobulin, bovine serum albumin and alpha-1 antitrypsin showed affinity for the citrate rich-phase. In aqueous two-phase systems of high medium pH and high polyethyleneglycol molecular mass the protein partitioning equilibrium is displaced to the citrate rich-phase. The polyethyleneglycol 1450-pH 5.2 system with a top/bottom phase-volume ratio of 3 showed to have the best capability of recovering the alpha-1 antitrypsin from a mixture prepared with natural milk whey and human alpha-1 antitrypsin. The recovery of this protein in the bottom phase was of 90% and the purity of the obtained product was of 98%. The method appears to be suitable as a starting point to isolate other human proteins expressed in transgenic bovine milk.
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Affiliation(s)
- Andrea Boaglio
- Chemical Physics Department, Bioseparation Lab., CONICET, and FonCyT, Faculty of Biochemical and Pharmaceutical Sciences, National University of Rosario, S2002LRK Rosario, Argentina
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Capezio L, Romanini D, Picó GA, Nerli B. Partition of whey milk proteins in aqueous two-phase systems of polyethylene glycol–phosphate as a starting point to isolate proteins expressed in transgenic milk. J Chromatogr B Analyt Technol Biomed Life Sci 2005; 819:25-31. [PMID: 15797517 DOI: 10.1016/j.jchromb.2005.01.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2004] [Accepted: 01/20/2005] [Indexed: 10/25/2022]
Abstract
Partitioning behaviour of the bovine whey proteins (bovine serum albumin, alpha lactoalbumin and beta lactoglobulin) and alpha-1 antitrypsin in aqueous two-phase systems prepared with polyethyleneglycol (molecular masses: 1000; 1500 and 3350)-potassium phosphate was analysed. Bovine serum albumin and alpha lactoalbumin concentrated in the polyethyleneglycol rich phase with a partition coefficient of 10.0 and 27.0, respectively, while beta lactoglubulin and alpha-1 antitrypsin showed affinity for the phosphate-rich phase with a partition coefficient of 0.07 and 0.01, respectively. An increase of medium pH induced an increase of the partition coefficient of these proteins while the increase in polyethyleneglycol molecular mass induced the opposite behaviour. The system polyethyleneglycol 1500-pH 6.3 showed the best capacity for recovering the alpha-1 antitrypsin with a yield of 80% and a purification factor between 1.5 and 1.8 from an artificial mixture of the milk whey proteins and alpha-1 antitrypsin. The method appears to be suitable as a starting point to isolate proteins expressed in transgenic milk.
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Affiliation(s)
- Lorena Capezio
- Physical Chemistry Department, Faculty of Biochemical and Pharmaceutical Sciences, CONICET and FonCyT, National University of Rosario, S2002RLK Rosario, Argentina
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Finotti P, Pagetta A. A heat shock protein70 fusion protein with alpha1-antitrypsin in plasma of type 1 diabetic subjects. Biochem Biophys Res Commun 2004; 315:297-305. [PMID: 14766207 DOI: 10.1016/j.bbrc.2004.01.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2004] [Indexed: 11/24/2022]
Abstract
The recent observation that heat shock proteins (HSPs), mostly glucose regulated protein94 (Grp94) and HSP70, are present in plasma of Type 1 diabetic subjects as complexes with immunoglobulins, prompted us to investigate the nature and extent of this association, whether it represents HSP-induced activation of the immune system. Two complementary affinity chromatography procedures followed by immunoprecipitation and immunoblot analyses of HSP-enriched, plasma-purified peaks, revealed that HSPs were inextricably linked with IgG in SDS-resistant complexes from which proteins dissociate partially under reducing treatment. HSP70 was found also closely linked with alpha1-antitrypsin (alpha1AT) in a single protein having the mass of alpha1AT but elution characteristics different from those of normal alpha1AT. Immunoprecipitation with anti-HSP70 antibodies led to co-immunoprecipitation of the alpha1AT species linked to HSP70, thus confirming fusion of the proteins. The additional finding of circulating antibodies against the HSP70-alpha1AT protein supported its immunogenic properties with implications for diabetes and its complications.
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Affiliation(s)
- Paola Finotti
- Department of Pharmacology and Anaesthesiology, University of Padua, Largo E. Meneghetti 2, 35131 Padua, Italy.
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Reh G, Nerli B, Picó G. Isolation of alpha-1-antitrypsin from human plasma by partitioning in aqueous biphasic systems of polyethyleneglycol-phosphate. J Chromatogr B Analyt Technol Biomed Life Sci 2002; 780:389-96. [PMID: 12401366 DOI: 10.1016/s1570-0232(02)00624-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The partitioning of alpha-1-antitrypsin was assayed in biphasic aqueous systems containing potassium phosphate and two polyethyleneglycols of molecular mass 600 and 1000, respectively. In order to isolate the alpha-1-antitrypsin from serum plasma, the partitioning behaviour of human serum albumin, its principal contaminant, was also studied. Several aqueous two-phase systems with different partitioning properties were obtained by varying the PEG1000/PEG600 mass proportion. In systems with PEG1000/PEG600 mass ratio of 8, the optimal difference between the partition coefficients of both proteins was found. Under such conditions, a satisfactory purification was carried out by a three-step extraction procedure. By applying this method the alpha-1-antitrypsin specific activity increased severalfold (nearly 10 times) with a yield of 43%.
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Affiliation(s)
- Georgina Reh
- Physical Chemistry Department and CONICET, Faculty of Biochemistry and Pharmaceutical Sciences, National University of Rosario, Suipacha 570, Rosario 2000, Argentina
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Zabel C, Chamrad DC, Priller J, Woodman B, Meyer HE, Bates GP, Klose J. Alterations in the mouse and human proteome caused by Huntington's disease. Mol Cell Proteomics 2002; 1:366-75. [PMID: 12118078 DOI: 10.1074/mcp.m200016-mcp200] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Huntington's disease is an autosomal dominantly inherited disease that usually starts in midlife and inevitably leads to death. In our effort to identify proteins involved in processes upstream or downstream of the disease-causing huntingtin, we studied the proteome of a well established mouse model by large gel two-dimensional electrophoresis. We could demonstrate for the first time at the protein level that alpha1-antitrypsin and alphaB-crystalline both decrease in expression over the course of disease. Importantly, the alpha1-antitrypsin decrease in the brain precedes that in liver and testes in mice. Reduced expression of the serine protease inhibitors alpha1-antitrypsin and contraspin was found in liver, heart, and testes close to terminal disease. Decreased expression of the chaperone alphaB-crystallin was found exclusively in the brain. In three brain regions obtained post-mortem from Huntington's disease patients, alpha1-antitrypsin expression was also altered. Reduced expression of the major urinary proteins not found in the brain was seen in the liver of affected mice, demonstrating that the disease exerts its influence outside the brain of transgenic mice at the protein level. Maintaining alpha1-antitrypsin and alphaB-crystallin availability during the course of Huntington's disease might prevent neuronal cell death and therefore could be useful in delaying the disease progression.
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Affiliation(s)
- Claus Zabel
- Institut für Humangenetik, Universitätsklinikum Charité, 13353 Berlin, Germany
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Di Nucci H, Nerli B, Picó G. Comparison between the thermodynamic features of alpha1-antitrypsin and human albumin partitioning in aqueous two-phase systems of polyethyleneglycol-dextran. Biophys Chem 2001; 89:219-29. [PMID: 11254214 DOI: 10.1016/s0301-4622(00)00237-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The partitioning features of human serum albumin and alpha1-antitrypsin in aqueous two-phase systems of dextran and polyethyleneglycol were studied. The effect of factors that affect the electrostatic term of Albertsson equation such as pH, ionic strength, presence of neutral salts as well as those which affect the non-electrostatic term such as polyethyleneglycol mol. wt. and temperature were assayed. At room temperature, the positive entropy and enthalpy changes associated to the partition may be due to a release of part of the structured water in the domain of proteins caused by H-bonds rupture when the proteins are transferred to the upper phase. This behaviour may be explained on the basis of a preferential hydration of the proteins in presence of dextran (bottom phase) and a preferential interaction of polyethyleneglycols with the protein domain (top phase). The electrostatic interactions were similar for both proteins due to the proximity of their isoelectric point and similar dissociation profiles of their prototropic groups.
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Affiliation(s)
- H Di Nucci
- Facultad de Ciencias Bioquímicas y Farmacéuticas and Conicet, Universidad Nacional de Rosario, Argentina
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