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Sitkowski J, Bocian W, Bednarek E, Urbańczyk M, Koźmiński W, Borowicz P, Płucienniczak G, Łukasiewicz N, Sokołowska I, Kozerski L. Insight into human insulin aggregation revisited using NMR derived translational diffusion parameters. JOURNAL OF BIOMOLECULAR NMR 2018; 71:101-114. [PMID: 29948440 DOI: 10.1007/s10858-018-0197-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 06/07/2018] [Indexed: 06/08/2023]
Abstract
The NMR derived translational diffusion coefficients were performed on unlabeled and uniformly labeled 13C,15N human insulin in water, both in neat, with zinc ions only, and in pharmaceutical formulation, containing only m-cresol as phenolic ligand, glycerol and zinc ions. The results show the dominant role of the pH parameter and the concentration on aggregation. The diffusion coefficient Dav was used for monitoring the overall average state of oligomeric ensemble in solution. The analysis of the experimental data of diffusion measurements, using the direct exponential curve resolution algorithm (DECRA) allows suggesting the two main components of the oligomeric ensemble. The 3D HSQC-iDOSY, (diffusion ordered HSQC) experiments performed on 13C, 15N-fully labeled insulin at the two pH values, 4 and 7.5, allow for the first time a more detailed experimental observation of individual components in the ensemble. The discussion involves earlier static and dynamic laser light scattering experiments and recent NMR derived translational diffusion results. The results bring new informations concerning the preparation of pharmaceutical formulation and in particular a role of Zn2+ ions. They also will enable better understanding and unifying the results of studies on insulin misfolding effects performed in solution by diverse physicochemical methods at different pH and concentration.
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Affiliation(s)
- Jerzy Sitkowski
- National Medicines Institute, Chełmska 30, 00-725, Warsaw, Poland
| | - Wojciech Bocian
- National Medicines Institute, Chełmska 30, 00-725, Warsaw, Poland
| | | | - Mateusz Urbańczyk
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Wiktor Koźmiński
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Piotr Borowicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02-516, Warsaw, Poland
| | | | - Natalia Łukasiewicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02-516, Warsaw, Poland
| | - Iwona Sokołowska
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02-516, Warsaw, Poland
| | - Lech Kozerski
- National Medicines Institute, Chełmska 30, 00-725, Warsaw, Poland.
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Mikiewicz D, Bierczyńska-Krzysik A, Sobolewska A, Stadnik D, Bogiel M, Pawłowska M, Wójtowicz-Krawiec A, Baran PA, Łukasiewicz N, Romanik-Chruścielewska A, Sokołowska I, Stadnik J, Borowicz P, Płucienniczak G, Płucienniczak A. Soluble insulin analogs combining rapid- and long-acting hypoglycemic properties - From an efficient E. coli expression system to a pharmaceutical formulation. PLoS One 2017; 12:e0172600. [PMID: 28296883 PMCID: PMC5351984 DOI: 10.1371/journal.pone.0172600] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 02/07/2017] [Indexed: 11/18/2022] Open
Abstract
The discovery of insulin led to a revolution in diabetes management. Since then, many improvements have been introduced to insulin preparations. The availability of molecular genetic techniques has enabled the creation of insulin analogs by changing the structure of the native protein in order to improve the therapeutic properties. A new expression vector pIBAINS for production of four recombinant human insulin (INS) analogs (GKR, GEKR, AKR, SR) was constructed and overexpressed in the new E. coli 20 strain as a fusion protein with modified human superoxide dismutase (SOD). The SOD gene was used as a signal peptide to enhance the expression of insulin. SOD::INS was manufactured in the form of insoluble inclusion bodies. After cleavage of the fusion protein with trypsin, the released insulin analogs were refolded and purified by reverse-phase high performance liquid chromatography (RP-HPLC). Elongation of chain A, described here for the first time, considerably improved the stability of the selected analogs. Their identity was confirmed with mass spectrometric techniques. The biological activity of the insulin derivatives was tested on rats with experimental diabetes. The obtained results proved that the new analogs described in this paper have the potential to generate prolonged hypoglycemic activity and may allow for even less frequent subcutaneous administration than once-a-day. When applied, all the analogs demonstrate a rapid onset of action. Such a combination renders the proposed biosynthetic insulin unique among already known related formulations.
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Affiliation(s)
- Diana Mikiewicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | | | - Agnieszka Sobolewska
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | - Dorota Stadnik
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | - Monika Bogiel
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | - Monika Pawłowska
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | | | - Piotr A. Baran
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | - Natalia Łukasiewicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | | | - Iwona Sokołowska
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | - Jacek Stadnik
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
| | - Piotr Borowicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, 02–516 Warsaw, Poland
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Structure and pharmaceutical formulation development of a new long-acting recombinant human insulin analog studied by NMR and MS. J Pharm Biomed Anal 2017; 135:126-132. [DOI: 10.1016/j.jpba.2016.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/29/2016] [Accepted: 12/02/2016] [Indexed: 11/20/2022]
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Zieliński M, Wójtowicz-Krawiec A, Mikiewicz D, Kęsik-Brodacka M, Cecuda-Adamczewska V, Marciniak-Rusek A, Sokołowska I, Łukasiewicz N, Gurba L, Odrowąż-Sypniewski M, Baran P, Płucienniczak G, Płucienniczak A, Borowicz P, Szewczyk B. Expression of recombinant human bifunctional peptidylglycine α-amidating monooxygenase in CHO cells and its use for insulin analogue modification. Protein Expr Purif 2015; 119:102-9. [PMID: 26614892 DOI: 10.1016/j.pep.2015.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 11/16/2015] [Accepted: 11/18/2015] [Indexed: 10/22/2022]
Abstract
The availability of catalytically active peptidylglycine α-amidating monooxygenase (PAM) should provide the means to examine its potential use for the chemienzymatic synthesis of bioactive peptides for the purpose of pharmacological studies. Hypoglycemic activity is one of the most important features of insulin derivatives. Insulin glargine amide was found to show a time/effect profile which is distinctly more flat and thus more advantageous than insulin glargine itself. The aim of the study was to obtain recombinant PAM and use it for insulin analogue amidation. We stably expressed a recombinant PAM in CHO dhfr-cells in culture. Recombinant PAM was partially purified by fractional ammonium sulphate precipitation and ion-exchange chromatography. The enzyme was used to modify glycine-extended A22(G)-B31(K)-B32(R) human insulin analogue (GKR). Alpha-amidated insulin was analyzed by HPLC and mass spectrometry. Hypoglycemic activity of amidated and non-amidated insulin was compared. The pharmacodynamic effect was based on glucose concentration measurement in Wistar rats with hyperglycemia induced by streptozotocin. The overall glycemic profile up to 36 h was evaluated after subcutaneous single dosing at a range of 2.5-7.5 U/kg b.w. The experiment on rats confirmed with a statistical significance (P < 0.05) hypoglycemic activity of GKR-NH2 in comparison to a control group receiving 0.9% NaCl. Characteristics for GKR-NH2 profile was a rather fast beginning of action (0.5-2.0 h) and quite prolonged return to initial values. GKR-NH2 is a candidate for a hypoglycemic drug product in diabetes care. In addition, this work also provides a valuable alternative method for preparing any other recombinant bioactive peptides with C-terminal amidation.
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Affiliation(s)
- Marcin Zieliński
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland.
| | | | - Diana Mikiewicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland
| | | | | | | | - Iwona Sokołowska
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland
| | - Natalia Łukasiewicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland
| | - Lidia Gurba
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland
| | | | - Piotr Baran
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland
| | | | | | - Piotr Borowicz
- Institute of Biotechnology and Antibiotics, Starościńska 5, Warszawa 02-516, Poland
| | - Bogusław Szewczyk
- Intercollegiate Faculty of Biotechnology of the University of Gdańsk and the Medical University of Gdańsk, Kładki 24, Gdańsk 80-822, Poland
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Borowicz P, Bocian W, Sitkowski J, Bednarek E, Mikiewicz-Syguła D, Kurzynoga D, Stadnik D, Surmacz-Chwedoruk W, Koźmiński W, Kozerski L. Biosynthetic engineered B28(K)-B29(P) human insulin monomer structure in water and in water/acetonitrile solutions. JOURNAL OF BIOMOLECULAR NMR 2013; 55:303-309. [PMID: 23404086 DOI: 10.1007/s10858-013-9713-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2012] [Accepted: 01/30/2013] [Indexed: 06/01/2023]
Affiliation(s)
- Piotr Borowicz
- Institute of Biotechnology and Antibiotics, Warsaw, Poland
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