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Wesemann F, Heutling A, Wienecke P, Kirschning A. First Ring-Expanded Maytansin Lactone Accessed by a New Mutasynthetic Variant. Chembiochem 2020; 21:2927-2930. [PMID: 32484951 PMCID: PMC7689855 DOI: 10.1002/cbic.202000336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 12/15/2022]
Abstract
A multiblocked mutant strain (ΔAHBA and Δasm12, asm21) of Actinosynnema pretiosum, the producer of the highly toxic maytansinoid ansamitocin, has been used for the mutasynthetic production of new proansamitocin derivatives. The use of mutant strains that are blocked in the biosynthesis of an early building block as well as in the expression of two tailoring enzymes broadens the scope of chemo-biosynthetic access to new maytansinoids. Remarkably, a ring-expanded macrolactone derived from ansamitocin was created for the first time.
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Affiliation(s)
- Friederike Wesemann
- Institute of Organic Chemistry and, Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Anja Heutling
- Institute of Organic Chemistry and, Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Paul Wienecke
- Institute of Organic Chemistry and, Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry and, Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
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Hermane J, Eichner S, Mancuso L, Schröder B, Sasse F, Zeilinger C, Kirschning A. New geldanamycin derivatives with anti Hsp properties by mutasynthesis. Org Biomol Chem 2019; 17:5269-5278. [PMID: 31089638 DOI: 10.1039/c9ob00892f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mutasynthetic supplementation of the AHBA blocked mutant strain of S. hygroscopicus, the geldanamycin producer, with 21 aromatic and heteroaromatic amino acids provided new nonquinoid geldanamycin derivatives. Large scale (5 L) fermentation provided four new derivatives in sufficient quantity for full structural characterisation. Among these, the first thiophene derivative of reblastatin showed strong antiproliferative activity towards several human cancer cell lines. Additionally, inhibitory effects on human heat shock protein Hsp90α and bacterial heat shock protein from H. pylori HpHtpG were observed, revealing strong displacement properties for labelled ATP and demonstrating that the ATP-binding site of Hsps is the target site for the new geldanamycin derivatives.
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Affiliation(s)
- Jekaterina Hermane
- Institute of Organic Chemistry, Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany.
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Lim D, Gründemann D, Seebeck FP. Total Synthesis and Functional Characterization of Selenoneine. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908967] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- David Lim
- Department for Chemistry University of Basel Mattenstrasse 24a 4002 Basel Switzerland
| | - Dirk Gründemann
- Department of Pharmacology University of Cologne, Faculty of Medicine and University Hospital Cologne Gleueler Straße 24 50931 Cologne Germany
| | - Florian P. Seebeck
- Department for Chemistry University of Basel Mattenstrasse 24a 4002 Basel Switzerland
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4
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Lim D, Gründemann D, Seebeck FP. Total Synthesis and Functional Characterization of Selenoneine. Angew Chem Int Ed Engl 2019; 58:15026-15030. [DOI: 10.1002/anie.201908967] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Indexed: 12/19/2022]
Affiliation(s)
- David Lim
- Department for Chemistry University of Basel Mattenstrasse 24a 4002 Basel Switzerland
| | - Dirk Gründemann
- Department of Pharmacology University of Cologne, Faculty of Medicine and University Hospital Cologne Gleueler Straße 24 50931 Cologne Germany
| | - Florian P. Seebeck
- Department for Chemistry University of Basel Mattenstrasse 24a 4002 Basel Switzerland
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Mohammadi-Ostad-Kalayeh S, Stahl F, Scheper T, Kock K, Herrmann C, Heleno Batista FA, Borges JC, Sasse F, Eichner S, Ongouta J, Zeilinger C, Kirschning A. Heat Shock Proteins Revisited: Using a Mutasynthetically Generated Reblastatin Library to Compare the Inhibition of Human and Leishmania Hsp90s. Chembiochem 2018; 19:562-574. [PMID: 29265716 DOI: 10.1002/cbic.201700616] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Indexed: 01/12/2023]
Abstract
Thirteen new reblastatin derivatives, with alkynyl, amino and fluoro substituents on the aromatic ring, were prepared by a chemo-biosynthetic approach using an AHBA(-) mutant strain of Streptomyces hygroscopicus, the geldanamycin producer. The inhibitory potencies of these mutaproducts and of an extended library of natural products and derivatives were probed with purified heat shock proteins (Hsps), obtained from Leishmania braziliensis (LbHsp90) as well as from human sources (HsHsp90). We determined the activities of potential inhibitors by means of a displacement assay in which fluorescence-labelled ATP competes for the ATP binding sites of Hsps in the presence of the inhibitor in question. The results were compared with those of cell-based assays and, in selected cases, of isothermal titration calorimetry (ITC) measurements. In essence, reblastatin derivatives are also able to bind effectively to the ATP-binding site of LbHsp90, and for selected derivatives, moderate differences in binding to LbHsp90 and HsHsp90 were encountered. This work demonstrates that parasitic heat shock proteins can be developed as potential pharmaceutical targets.
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Affiliation(s)
- Sona Mohammadi-Ostad-Kalayeh
- Institute of Biophysics and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
| | - Frank Stahl
- Institute of Technical Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Callinstrasse 5, 30167, Hannover, Germany
| | - Thomas Scheper
- Institute of Technical Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Callinstrasse 5, 30167, Hannover, Germany
| | - Klaus Kock
- Physical Chemistry I, Ruhr University Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
| | - Christian Herrmann
- Physical Chemistry I, Ruhr University Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
| | | | - Júlio César Borges
- São Carlos Institute of Chemistry, University of São Paulo, USP, São Carlos, SP, 13560-970, Brazil
| | - Florenz Sasse
- Department of Chemical Biology, Helmholtz Center of Infectious Research (HZI), Inhoffenstrasse 7, 38124, Braunschweig, Germany
| | - Simone Eichner
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Jekaterina Ongouta
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
| | - Carsten Zeilinger
- Institute of Biophysics and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 38, 30167, Hannover, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167, Hannover, Germany
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Bułyszko I, Dräger G, Klenge A, Kirschning A. Evaluation of the Synthetic Potential of an AHBA Knockout Mutant of the Rifamycin Producer Amycolatopsis mediterranei. Chemistry 2015; 21:19231-42. [PMID: 26559164 DOI: 10.1002/chem.201503548] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Indexed: 12/17/2022]
Abstract
Supplementing an AHBA(-) mutant strain of Amycolatopsis mediterranei, the rifamycin producer, with a series of benzoic acid derivatives yielded new tetraketides containing different phenyl groups. These mutasynthetic studies revealed unique reductive properties of A. mediterranei towards nitro- and azidoarenes, leading to the corresponding anilines. In selected cases, the yields of mutaproducts (fermentation products isolated after feeding bacteria with chemically prepared analogs of natural building blocks) obtained are in a range (up to 118 mg L(-1)) that renders them useful as chiral building blocks for further synthetic endeavors. The configuration of the stereogenic centers at C6 and C7 was determined to be 6R,7S for one representative tetraketide. Importantly, processing beyond the tetraketide stage is not always blocked when the formation of the bicyclic naphthalene precursor cannot occur. This was proven by formation of a bromo undecaketide, an observation that has implications regarding the evolutionary development of rifamycin biosynthesis.
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Affiliation(s)
- Ilona Bułyszko
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Gerald Dräger
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Anja Klenge
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover (Germany).
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Hermane J, Bułyszko I, Eichner S, Sasse F, Collisi W, Poso A, Schax E, Walter JG, Scheper T, Kock K, Herrmann C, Aliuos P, Reuter G, Zeilinger C, Kirschning A. New, non-quinone fluorogeldanamycin derivatives strongly inhibit Hsp90. Chembiochem 2015; 16:302-11. [PMID: 25572106 DOI: 10.1002/cbic.201402375] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Revised: 11/04/2014] [Indexed: 11/11/2022]
Abstract
Streptomyces hygroscopicus is a natural producer of geldanamycin. Mutasynthetic supplementation of an AHBA-blocked mutant with all possible monofluoro 3-aminobenzoic acids provided new fluorogeldanamycins. These showed strong antiproliferative activity and inhibitory effects on human heat shock protein Hsp90. Binding to Hsp90 in the low nanomolar range was determined from molecular modelling, AFM analysis and by calorimetric studies.
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Affiliation(s)
- Jekaterina Hermane
- Institute of Organic Chemistry, Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1B, 30167 Hannover (Germany)
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Mancuso L, Knobloch T, Buchholz J, Hartwig J, Möller L, Seidel K, Collisi W, Sasse F, Kirschning A. Preparation of Thermocleavable Conjugates Based on Ansamitocin and Superparamagnetic Nanostructured Particles by a Chemobiosynthetic Approach. Chemistry 2014; 20:17541-51. [DOI: 10.1002/chem.201404502] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Indexed: 11/08/2022]
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Affiliation(s)
- Gerrit Jürjens
- Institute of Organic Chemistry
and Center of Biomolecuclar Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry
and Center of Biomolecuclar Drug Research (BMWZ), Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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Harmrolfs K, Mancuso L, Drung B, Sasse F, Kirschning A. Preparation of new alkyne-modified ansamitocins by mutasynthesis. Beilstein J Org Chem 2014; 10:535-43. [PMID: 24605171 PMCID: PMC3943755 DOI: 10.3762/bjoc.10.49] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2013] [Accepted: 01/29/2014] [Indexed: 11/23/2022] Open
Abstract
The preparation of alkyne-modified ansamitocins by mutasynthetic supplementation of Actinosynnema pretiosum mutants with alkyne-substituted aminobenzoic acids is described. This modification paved the way to introduce a thiol linker by Huisgen-type cycloaddition which can principally be utilized to create tumor targeting conjugates. In bioactivity tests, only those new ansamitocin derivatives showed strong antiproliferative activity that bear an ester side chain at C-3.
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Affiliation(s)
- Kirsten Harmrolfs
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
| | - Lena Mancuso
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
| | - Binia Drung
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
| | - Florenz Sasse
- Department of Chemical Biology, Helmholtz Center for Infectious Research (HZI), Inhoffenstraße 7, D-38124 Braunschweig, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
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Mancuso L, Jürjens G, Hermane J, Harmrolfs K, Eichner S, Fohrer J, Collisi W, Sasse F, Kirschning A. Bioreduction of aryl azides during mutasynthesis of new ansamitocins. Org Lett 2013; 15:4442-5. [PMID: 23981134 DOI: 10.1021/ol401989e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Supplementing a culture of a mutant strain of Actinosynnema pretiosum that is unable to biosynthesize aminohydroxy benzoic acid (AHBA), with 3-azido-5-hydroxy-benzoic acid and 3-azido-5-amino-benzoic acid, unexpectedly yielded anilino ansamitocins instead of the expected azido derivatives. This is the first example of the bioreduction of organic azides. The unique nature of these results was demonstrated when 3-azido-5-amino-benzoic acid was fed to the corresponding AHBA blocked mutant of Streptomyces hygroscopicus, the geldanamycin producer. This mutasynthetic experiment yielded the fully processed azido derivative of geldanamycin.
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Affiliation(s)
- Lena Mancuso
- Institut für Organische Chemie und Biomolekulares Wikstoffzentrum (BMWZ) der Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany
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12
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Ueberschaar N, Dahse HM, Bretschneider T, Hertweck C. Rational Design of an Apoptosis-Inducing Photoreactive DNA Intercalator. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Ueberschaar N, Dahse HM, Bretschneider T, Hertweck C. Rational Design of an Apoptosis-Inducing Photoreactive DNA Intercalator. Angew Chem Int Ed Engl 2013; 52:6185-9. [DOI: 10.1002/anie.201302439] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Indexed: 01/22/2023]
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Knobloch T, Dräger G, Collisi W, Sasse F, Kirschning A. Unprecedented deoxygenation at C-7 of the ansamitocin core during mutasynthetic biotransformations. Beilstein J Org Chem 2012; 8:861-9. [PMID: 23015834 PMCID: PMC3388874 DOI: 10.3762/bjoc.8.96] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Accepted: 05/16/2012] [Indexed: 11/23/2022] Open
Abstract
We describe the unprecedented formation of six ansamitocin derivatives that are deoxygenated at C-7 of the ansamitocin core, obtained during fermentation experiments by employing a variety of Actinosynnema pretiosum mutants and mutasynthetic approaches. We suggest that the formation of these derivatives is based on elimination at C-7/C-8 followed by reduction(s) of the intermediate enone. In bioactivity tests, only ansamitocin derivatives bearing an ester side chain at C-3 showed strong antiproliferative activity.
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Affiliation(s)
- Tobias Knobloch
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
| | - Gerald Dräger
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
| | - Wera Collisi
- Department of Chemical Biology, Helmholtz Center for Infectious Research (HZI), Inhoffenstraße 7, D-38124 Braunschweig, Germany
| | - Florenz Sasse
- Department of Chemical Biology, Helmholtz Center for Infectious Research (HZI), Inhoffenstraße 7, D-38124 Braunschweig, Germany
| | - Andreas Kirschning
- Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ), Leibniz University Hannover, Schneiderberg 1b, 30167 Hannover, Germany
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Kirschning A, Hahn F. Vereinigung von chemischer Synthese und Biosynthese: ein neues Kapitel in der Totalsynthese von Naturstoffen und Naturstoffbibliotheken. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201107386] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Kirschning A, Hahn F. Merging chemical synthesis and biosynthesis: a new chapter in the total synthesis of natural products and natural product libraries. Angew Chem Int Ed Engl 2012; 51:4012-22. [PMID: 22441812 DOI: 10.1002/anie.201107386] [Citation(s) in RCA: 139] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Indexed: 01/05/2023]
Affiliation(s)
- Andreas Kirschning
- Institut für Organische Chemie und Biomolekulares Wirkstoffzentrum, Leibniz Universität Hannover, Schneiderberg 1B, 30167 Hannover, Germany.
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