1
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Leusmann S, Ménová P, Shanin E, Titz A, Rademacher C. Glycomimetics for the inhibition and modulation of lectins. Chem Soc Rev 2023; 52:3663-3740. [PMID: 37232696 PMCID: PMC10243309 DOI: 10.1039/d2cs00954d] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Indexed: 05/27/2023]
Abstract
Carbohydrates are essential mediators of many processes in health and disease. They regulate self-/non-self- discrimination, are key elements of cellular communication, cancer, infection and inflammation, and determine protein folding, function and life-times. Moreover, they are integral to the cellular envelope for microorganisms and participate in biofilm formation. These diverse functions of carbohydrates are mediated by carbohydrate-binding proteins, lectins, and the more the knowledge about the biology of these proteins is advancing, the more interfering with carbohydrate recognition becomes a viable option for the development of novel therapeutics. In this respect, small molecules mimicking this recognition process become more and more available either as tools for fostering our basic understanding of glycobiology or as therapeutics. In this review, we outline the general design principles of glycomimetic inhibitors (Section 2). This section is then followed by highlighting three approaches to interfere with lectin function, i.e. with carbohydrate-derived glycomimetics (Section 3.1), novel glycomimetic scaffolds (Section 3.2) and allosteric modulators (Section 3.3). We summarize recent advances in design and application of glycomimetics for various classes of lectins of mammalian, viral and bacterial origin. Besides highlighting design principles in general, we showcase defined cases in which glycomimetics have been advanced to clinical trials or marketed. Additionally, emerging applications of glycomimetics for targeted protein degradation and targeted delivery purposes are reviewed in Section 4.
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Affiliation(s)
- Steffen Leusmann
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Petra Ménová
- University of Chemistry and Technology, Prague, Technická 5, 16628 Prague 6, Czech Republic
| | - Elena Shanin
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
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2
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Zahorska E, Rosato F, Stober K, Kuhaudomlarp S, Meiers J, Hauck D, Reith D, Gillon E, Rox K, Imberty A, Römer W, Titz A. Neutralizing the Impact of the Virulence Factor LecA from Pseudomonas aeruginosa on Human Cells with New Glycomimetic Inhibitors. Angew Chem Int Ed Engl 2023; 62:e202215535. [PMID: 36398566 PMCID: PMC10107299 DOI: 10.1002/anie.202215535] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022]
Abstract
Bacterial adhesion, biofilm formation and host cell invasion of the ESKAPE pathogen Pseudomonas aeruginosa require the tetravalent lectins LecA and LecB, which are therefore drug targets to fight these infections. Recently, we have reported highly potent divalent galactosides as specific LecA inhibitors. However, they suffered from very low solubility and an intrinsic chemical instability due to two acylhydrazone motifs, which precluded further biological evaluation. Here, we isosterically substituted the acylhydrazones and systematically varied linker identity and length between the two galactosides necessary for LecA binding. The optimized divalent LecA ligands showed improved stability and were up to 1000-fold more soluble. Importantly, these properties now enabled their biological characterization. The lead compound L2 potently inhibited LecA binding to lung epithelial cells, restored wound closure in a scratch assay and reduced the invasiveness of P. aeruginosa into host cells.
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Affiliation(s)
- Eva Zahorska
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-, Braunschweig, Germany
| | - Francesca Rosato
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, 79104, Freiburg, Germany
| | - Kai Stober
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, 79104, Freiburg, Germany
| | - Sakonwan Kuhaudomlarp
- Université Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France.,Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.,Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Joscha Meiers
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-, Braunschweig, Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-, Braunschweig, Germany
| | - Dorina Reith
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, 79104, Freiburg, Germany
| | - Emilie Gillon
- Université Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Katharina Rox
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-, Braunschweig, Germany.,Department of Chemical Biology (CBIO), Helmholtz Centre for Infection Research (HZI), 38124, Braunschweig, Germany
| | - Anne Imberty
- Université Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Winfried Römer
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, 79104, Freiburg, Germany.,Freiburg Institute for Advanced Studies (FRIAS), University of Freiburg, 79104, Freiburg, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-, Braunschweig, Germany
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3
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Meiers J, Dastbaz J, Adam S, Rasheed S, Kirsch SH, Meiser P, Gross P, Müller R, Titz A. Pineapple Lectin AcmJRL Binds SARS-CoV-2 Spike Protein in a Carbohydrate-Dependent Fashion. Chembiochem 2023; 24:e202200463. [PMID: 36420784 PMCID: PMC10107836 DOI: 10.1002/cbic.202200463] [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: 08/10/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
The highly glycosylated spike protein of SARS-CoV-2 is essential for infection and constitutes a prime target for antiviral agents and vaccines. The pineapple-derived jacalin-related lectin AcmJRL is present in the medication bromelain in significant quantities and has previously been described to bind mannosides. Here, we performed a large ligand screening of AcmJRL by glycan array analysis, quantified the interaction with carbohydrates and validated high-mannose glycans as preferred ligands. Because the SARS-CoV-2 spike protein was previously reported to carry a high proportion of high-mannose N-glycans, we tested the binding of AcmJRL to the recombinantly produced extraviral domain of spike protein. We could demonstrate that AcmJRL binds the spike protein with a low-micromolar KD in a carbohydrate-dependent fashion.
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Affiliation(s)
- Joscha Meiers
- Chemical Biology of Carbohydrates (CBCH)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
| | - Jan Dastbaz
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of PharmacySaarland University66123SaarbrückenGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Sebastian Adam
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Drug Design and Optimisation (DDOP)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Sari Rasheed
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of PharmacySaarland University66123SaarbrückenGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Susanne H. Kirsch
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Peter Meiser
- URSAPHARM Arzneimittel GmbH66129SaarbrückenGermany
| | - Peter Gross
- Hochschule KaiserslauternProtein Chemistry Group66953PirmasensGermany
| | - Rolf Müller
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of PharmacySaarland University66123SaarbrückenGermany
- Microbial Natural Products (MINS)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH)Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Standort Hannover-Braunschweig38124BraunschweigGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
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4
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Mała P, Siebs E, Meiers J, Rox K, Varrot A, Imberty A, Titz A. Discovery of N-β-l-Fucosyl Amides as High-Affinity Ligands for the Pseudomonas aeruginosa Lectin LecB. J Med Chem 2022; 65:14180-14200. [PMID: 36256875 PMCID: PMC9620277 DOI: 10.1021/acs.jmedchem.2c01373] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The Gram-negative
pathogen Pseudomonas
aeruginosa causes severe infections mainly in immunocompromised
or cystic fibrosis
patients and is able to resist antimicrobial treatments. The extracellular
lectin LecB plays a key role in bacterial adhesion to the host and
biofilm formation. For the inhibition of LecB, we designed and synthesized
a set of fucosyl amides, sulfonamides, and thiourea derivatives. Then,
we analyzed their binding to LecB in competitive and direct binding
assays. We identified β-fucosyl amides as unprecedented high-affinity
ligands in the two-digit nanomolar range. X-ray crystallography of
one α- and one β-anomer of N-fucosyl
amides in complex with LecB revealed the interactions responsible
for the high affinity of the β-anomer at atomic level. Further,
the molecules showed good stability in murine and human blood plasma
and hepatic metabolism, providing a basis for future development into
antibacterial drugs.
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Affiliation(s)
- Patrycja Mała
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123Saarbrücken, Germany.,Faculty of Chemistry, Adam Mickiewicz University, 61-614Poznań, Poland
| | - Eike Siebs
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124Braunschweig, Germany
| | - Joscha Meiers
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124Braunschweig, Germany
| | - Katharina Rox
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124Braunschweig, Germany.,Chemical Biology (CBIO), Helmholtz Centre for Infection Research, 38124Braunschweig, Germany
| | | | - Anne Imberty
- Univ. Grenoble Alpes, CNRS, CERMAV, 38000Grenoble, France
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124Braunschweig, Germany
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5
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Meiers J, Rox K, Titz A. Lectin-Targeted Prodrugs Activated by Pseudomonas aeruginosa for Self-Destructive Antibiotic Release. J Med Chem 2022; 65:13988-14014. [PMID: 36201248 PMCID: PMC9619409 DOI: 10.1021/acs.jmedchem.2c01214] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Chronic Pseudomonas aeruginosa infections
are characterized by biofilm formation, a major virulence factor of P. aeruginosa and cause of extensive drug resistance.
Fluoroquinolones are effective antibiotics but are linked to severe
side effects. The two extracellular P. aeruginosa-specific lectins LecA and LecB are key structural biofilm components
and can be exploited for targeted drug delivery. In this work, several
fluoroquinolones were conjugated to lectin probes by cleavable peptide
linkers to yield lectin-targeted prodrugs. Mechanistically, these
conjugates therefore remain non-toxic in the systemic distribution
and will be activated to kill only once they have accumulated at the
infection site. The synthesized prodrugs proved stable in the presence
of host blood plasma and liver metabolism but rapidly released the
antibiotic cargo in the presence of P. aeruginosa in a self-destructive manner in vitro. Furthermore, the prodrugs
showed good absorption, distribution, metabolism, and elimination
(ADME) properties and reduced toxicity in vitro, thus establishing
the first lectin-targeted antibiotic prodrugs against P. aeruginosa.
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Affiliation(s)
- Joscha Meiers
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany.,Department of Chemistry, Saarland University, D-66123 Saarbrücken, Germany
| | - Katharina Rox
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany.,Chemical Biology (CBIO), Helmholtz Centre for Infection Research (HZI), Helmholtz Centre for Infection Research, D-38124 Braunschweig, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany.,Department of Chemistry, Saarland University, D-66123 Saarbrücken, Germany
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6
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Wang Y, Pan L, Li L, Cao R, Zheng Q, Xu Z, Wu CJ, Zhu H. Glycosylation increases the anti-QS as well as anti-biofilm and anti-adhesion ability of the cyclo (L-Trp-L-Ser) against Pseudomonas aeruginosa. Eur J Med Chem 2022; 238:114457. [DOI: 10.1016/j.ejmech.2022.114457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/29/2022] [Accepted: 05/09/2022] [Indexed: 11/03/2022]
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7
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Patil PD, Jin Y, Luk YY. Chemical control over Asialo-GM1: A dual ligand for pili and Lectin A that activates swarming motility and facilitates adherence of Pseudomonas aeruginosa. Colloids Surf B Biointerfaces 2022; 215:112478. [PMID: 35390596 DOI: 10.1016/j.colsurfb.2022.112478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 11/20/2022]
Abstract
Glycolipid, ganglio-N-tetraosylceramide (asialo-GM1), on the mammalian cells are known to be recognized by type IV pili of Pseudomonas aeruginosa. In this work, we show that asialo-GM1 can also be recognized by Lectin A (LecA), another adhesin protein of the P. aeruginosa, by a fluorescent polarization assay, a label-free bacterial motility enabled binding assay, and bacterial mutant studies. On hydrated semi-solid gel surfaces, asialo-GM1 enables swarming and twitching motilities, while on solid surfaces facilitates the bacterial adherence of P. aeruginosa. These results indicate that asialo-GM1 can modulate bioactivities, adherence, and motilities, that are controlled by opposite signaling pathways. We demonstrate that when a solution of pilin monomers or LecA proteins are spread on hydrated gel surfaces, the asialo-GM1 mediated swarming motility is inhibited. Treatment of artificial liposomes containing asialo-GM1 as a component of lipid bilayer with pilin monomers or LecA proteins caused transient leakage of encapsulated dye from liposomes. These results suggest that pili and LecA proteins not only bind to asialo-GM1 but can also cause asialo-GM1 mediated leakage. We also show that both pili and LecA mutants of P. aeruginosa adhere to asialo-GM1 coated solid surfaces, and that a class of synthetic ligands for pili and LecA inhibits both pili and LecA-mediated adherence of P. aeruginosa on asialo-GM1-coated surfaces.
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Affiliation(s)
- Pankaj D Patil
- Department of Chemistry, Syracuse University 1-014 Center of Science and Technology, Syracuse, NY 13244, USA
| | - Yuchen Jin
- Department of Chemistry, Syracuse University 1-014 Center of Science and Technology, Syracuse, NY 13244, USA
| | - Yan-Yeung Luk
- Department of Chemistry, Syracuse University 1-014 Center of Science and Technology, Syracuse, NY 13244, USA.
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8
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Patil PD, Zheng H, Burns FN, Ibanez ACS, Jin Y, Luk YY. Chimeric Ligands of Pili and Lectin A Inhibit Tolerance, Persistence, and Virulence Factors of Pseudomonas aeruginosa over a Wide Range of Phenotypes. ACS Infect Dis 2022; 8:1582-1593. [PMID: 35658414 PMCID: PMC9379910 DOI: 10.1021/acsinfecdis.2c00201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
Bacteria readily
form resilient phenotypes to counter environmental
and antibiotic stresses. Here, we demonstrate a class of small molecules
that inhibit a wide range of Pseudomonas aeruginosa phenotypes and enable antibiotics to kill previously tolerant bacteria,
preventing the transition of tolerant bacteria into a persistent population.
We identified two proteins, type IV pili and lectin LecA, as receptors
for our molecules by methods including a new label-free assay based
on bacterial motility sensing the chemicals in the environment, the
chemical inhibition of bacteriophage adsorption on pili appendages
of bacteria, and fluorescence polarization. Structure–activity
relationship studies reveal a molecule that inhibits only pili appendage
and a class of chimeric ligands that inhibit both LecA and pili. Important
structural elements of the ligand are identified for each protein.
This selective ligand binding identifies the phenotypes each protein
receptor controls. Inhibiting LecA results in reducing biofilm formation,
eliminating small colony variants, and is correlated with killing
previously tolerant bacteria. Inhibiting pili appendages impedes swarming
and twitching motilities and pyocyanin and elastase production. Because
these phenotypes are controlled by a broad range of signaling pathways,
this approach simultaneously controls the multiple signaling mechanisms
preventing bacteria to elude antibiotic treatments.
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Affiliation(s)
- Pankaj D Patil
- Department of Chemistry, Syracuse University, 1-014 Center of Science and Technology, Syracuse, New York 13244-4100, United States
| | - Hewen Zheng
- Department of Chemistry, Syracuse University, 1-014 Center of Science and Technology, Syracuse, New York 13244-4100, United States
| | - Felicia N Burns
- Department of Chemistry, Syracuse University, 1-014 Center of Science and Technology, Syracuse, New York 13244-4100, United States
| | - Arizza C S Ibanez
- Department of Chemistry, Syracuse University, 1-014 Center of Science and Technology, Syracuse, New York 13244-4100, United States
| | - Yuchen Jin
- Department of Chemistry, Syracuse University, 1-014 Center of Science and Technology, Syracuse, New York 13244-4100, United States
| | - Yan-Yeung Luk
- Department of Chemistry, Syracuse University, 1-014 Center of Science and Technology, Syracuse, New York 13244-4100, United States
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9
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Shanina E, Kuhaudomlarp S, Siebs E, Fuchsberger FF, Denis M, da Silva Figueiredo Celestino Gomes P, Clausen MH, Seeberger PH, Rognan D, Titz A, Imberty A, Rademacher C. Targeting undruggable carbohydrate recognition sites through focused fragment library design. Commun Chem 2022; 5:64. [PMID: 36697615 PMCID: PMC9814205 DOI: 10.1038/s42004-022-00679-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 04/29/2022] [Indexed: 01/28/2023] Open
Abstract
Carbohydrate-protein interactions are key for cell-cell and host-pathogen recognition and thus, emerged as viable therapeutic targets. However, their hydrophilic nature poses major limitations to the conventional development of drug-like inhibitors. To address this shortcoming, four fragment libraries were screened to identify metal-binding pharmacophores (MBPs) as novel scaffolds for inhibition of Ca2+-dependent carbohydrate-protein interactions. Here, we show the effect of MBPs on the clinically relevant lectins DC-SIGN, Langerin, LecA and LecB. Detailed structural and biochemical investigations revealed the specificity of MBPs for different Ca2+-dependent lectins. Exploring the structure-activity relationships of several fragments uncovered the functional groups in the MBPs suitable for modification to further improve lectin binding and selectivity. Selected inhibitors bound efficiently to DC-SIGN-expressing cells. Altogether, the discovery of MBPs as a promising class of Ca2+-dependent lectin inhibitors creates a foundation for fragment-based ligand design for future drug discovery campaigns.
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Affiliation(s)
- Elena Shanina
- grid.419564.b0000 0004 0491 9719Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14424 Potsdam, Germany ,grid.14095.390000 0000 9116 4836Freie Universität Berlin, Department of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany
| | - Sakonwan Kuhaudomlarp
- grid.450307.50000 0001 0944 2786University Grenoble Alpes, CNRS, CERMAV, Grenoble, France ,grid.10223.320000 0004 1937 0490Department of Biochemistry, Faculty of Science, Mahidol University, 10400 Bangkok, Thailand ,grid.10223.320000 0004 1937 0490Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, 10400 Bangkok, Thailand
| | - Eike Siebs
- grid.461899.bChemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany ,grid.11749.3a0000 0001 2167 7588Saarland University, Department of Chemistry, 66123 Saarbrücken, Germany ,grid.452463.2German Center for Infection Research (DZIF), Hannover-Braunschweig, Germany
| | - Felix F. Fuchsberger
- grid.419564.b0000 0004 0491 9719Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14424 Potsdam, Germany ,grid.14095.390000 0000 9116 4836Freie Universität Berlin, Department of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany ,grid.10420.370000 0001 2286 1424University of Vienna, Department of Pharmaceutical Sciences, Althanstrasse 14, 1090 Vienna, Austria ,grid.10420.370000 0001 2286 1424University of Vienna, Department of Microbiology, Immunology and Genetics, Max F. Berutz Labs, Biocenter 5, 1030 Vienna, Austria
| | - Maxime Denis
- grid.10420.370000 0001 2286 1424University of Vienna, Department of Pharmaceutical Sciences, Althanstrasse 14, 1090 Vienna, Austria ,grid.10420.370000 0001 2286 1424University of Vienna, Department of Microbiology, Immunology and Genetics, Max F. Berutz Labs, Biocenter 5, 1030 Vienna, Austria
| | - Priscila da Silva Figueiredo Celestino Gomes
- grid.503326.10000 0004 0367 4780Laboratoire d’Innovation Thérapeutique, UMR 7200 CNRS-Université de Strasbourg, 67400 Illkirch, France ,grid.252546.20000 0001 2297 8753Department of Physics, College of Sciences and Mathematics, Auburn University, 36849 Auburn, AL USA
| | - Mads H. Clausen
- grid.5170.30000 0001 2181 8870Technical University of Denmark, Center for Nanomedicine and Theranostics, Department of Chemistry, Kemitorvet 207, 2800 Kongens Lyngby, Denmark
| | - Peter H. Seeberger
- grid.419564.b0000 0004 0491 9719Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14424 Potsdam, Germany ,grid.14095.390000 0000 9116 4836Freie Universität Berlin, Department of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany
| | - Didier Rognan
- grid.503326.10000 0004 0367 4780Laboratoire d’Innovation Thérapeutique, UMR 7200 CNRS-Université de Strasbourg, 67400 Illkirch, France
| | - Alexander Titz
- grid.461899.bChemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany ,grid.11749.3a0000 0001 2167 7588Saarland University, Department of Chemistry, 66123 Saarbrücken, Germany ,grid.452463.2German Center for Infection Research (DZIF), Hannover-Braunschweig, Germany
| | - Anne Imberty
- grid.450307.50000 0001 0944 2786University Grenoble Alpes, CNRS, CERMAV, Grenoble, France
| | - Christoph Rademacher
- grid.419564.b0000 0004 0491 9719Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg 1, 14424 Potsdam, Germany ,grid.14095.390000 0000 9116 4836Freie Universität Berlin, Department of Chemistry and Biochemistry, Arnimallee 22, 14195 Berlin, Germany ,grid.10420.370000 0001 2286 1424University of Vienna, Department of Pharmaceutical Sciences, Althanstrasse 14, 1090 Vienna, Austria ,grid.10420.370000 0001 2286 1424University of Vienna, Department of Microbiology, Immunology and Genetics, Max F. Berutz Labs, Biocenter 5, 1030 Vienna, Austria
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10
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Wojtczak K, Byrne JP. Structural considerations for building synthetic glycoconjugates as inhibitors for Pseudomonas aeruginosa lectins. ChemMedChem 2022; 17:e202200081. [PMID: 35426976 PMCID: PMC9321714 DOI: 10.1002/cmdc.202200081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/13/2022] [Indexed: 11/16/2022]
Abstract
Pseudomonas aeruginosa is a pathogenic bacterium, responsible for a large portion of nosocomial infections globally and designated as critical priority by the World Health Organisation. Its characteristic carbohydrate‐binding proteins LecA and LecB, which play a role in biofilm‐formation and lung‐infection, can be targeted by glycoconjugates. Here we review the wide range of inhibitors for these proteins (136 references), highlighting structural features and which impact binding affinity and/or therapeutic effects, including carbohydrate selection; linker length and rigidity; and scaffold topology, particularly for multivalent candidates. We also discuss emerging therapeutic strategies, which build on targeting of LecA and LecB, such as anti‐biofilm activity, anti‐adhesion and drug‐delivery, with promising prospects for medicinal chemistry.
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Affiliation(s)
- Karolina Wojtczak
- National University of Ireland Galway School of Biological and Chemical Sciences University Road H91 TK33 Galway IRELAND
| | - Joseph Peter Byrne
- National University of Ireland Galway School of Chemistry University Road H91 TK33 Galway IRELAND
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11
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Metelkina O, Huck B, O'Connor JS, Koch M, Manz A, Lehr CM, Titz A. Targeting extracellular lectins of Pseudomonas aeruginosa with glycomimetic liposomes. J Mater Chem B 2022; 10:537-548. [PMID: 34985094 DOI: 10.1039/d1tb02086b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The antimicrobial resistance crisis requires novel approaches for the therapy of infections especially with Gram-negative pathogens. Pseudomonas aeruginosa is defined as priority 1 pathogen by the WHO and thus of particular interest. Its drug resistance is primarily associated with biofilm formation and essential constituents of its extracellular biofilm matrix are the two lectins, LecA and LecB. Here, we report microbial lectin-specific targeted nanovehicles based on liposomes. LecA- and LecB-targeted phospholipids were synthesized and used for the preparation of liposomes. These liposomes with varying surface ligand density were then analyzed for their competitive and direct lectin binding activity. We have further developed a microfluidic device that allowed the optical detection of the targeting process to the bacterial lectins. Our data showed that the targeted liposomes are specifically binding to their respective lectin and remain firmly attached to surfaces containing these lectins. This synthetic and biophysical study provides the basis for future application in targeted antibiotic delivery to overcome antimicrobial resistance.
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Affiliation(s)
- Olga Metelkina
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany. .,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124 Braunschweig, Germany.,Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Benedikt Huck
- Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.,Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Jonathan S O'Connor
- KIST Europe, 66123 Saarbrücken, Germany.,Department of Systems Engineering, Saarland University, 66123 Saarbrücken, Germany
| | - Marcus Koch
- INM - Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
| | - Andreas Manz
- KIST Europe, 66123 Saarbrücken, Germany.,Department of Systems Engineering, Saarland University, 66123 Saarbrücken, Germany
| | - Claus-Michael Lehr
- Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.,Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany. .,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, 38124 Braunschweig, Germany.,Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
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12
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Xu S, Xiang H, Wang Z, Tang X, Zhang Y, Zhan X, Chen J. Conjugation of a phenanthrene‐imidazole fluorophore with the chondroitin sulfate generated from
Escherichia coli
K4
polysaccharide. J Appl Polym Sci 2021. [DOI: 10.1002/app.51538] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuqin Xu
- School of Pharmaceutical Science Jiangnan University Wuxi China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education Jiangnan University Wuxi China
| | - Huimin Xiang
- School of Pharmaceutical Science Jiangnan University Wuxi China
| | - Zhuqun Wang
- School of Pharmaceutical Science Jiangnan University Wuxi China
| | - Xiaoli Tang
- School of Pharmaceutical Science Jiangnan University Wuxi China
| | - Yan Zhang
- School of Pharmaceutical Science Jiangnan University Wuxi China
| | - Xiaobei Zhan
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology Jiangnan University Wuxi China
| | - Jinghua Chen
- School of Pharmaceutical Science Jiangnan University Wuxi China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education Jiangnan University Wuxi China
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13
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Siebs E, Shanina E, Kuhaudomlarp S, da Silva Figueiredo Celestino Gomes P, Fortin C, Seeberger PH, Rognan D, Rademacher C, Imberty A, Titz A. Targeting the Central Pocket of the Pseudomonas aeruginosa Lectin LecA. Chembiochem 2021; 23:e202100563. [PMID: 34788491 PMCID: PMC9300185 DOI: 10.1002/cbic.202100563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/16/2021] [Indexed: 12/19/2022]
Abstract
Pseudomonas aeruginosa is an opportunistic ESKAPE pathogen that produces two lectins, LecA and LecB, as part of its large arsenal of virulence factors. Both carbohydrate‐binding proteins are central to the initial and later persistent infection processes, i. e. bacterial adhesion and biofilm formation. The biofilm matrix is a major resistance determinant and protects the bacteria against external threats such as the host immune system or antibiotic treatment. Therefore, the development of drugs against the P. aeruginosa biofilm is of particular interest to restore efficacy of antimicrobials. Carbohydrate‐based inhibitors for LecA and LecB were previously shown to efficiently reduce biofilm formations. Here, we report a new approach for inhibiting LecA with synthetic molecules bridging the established carbohydrate‐binding site and a central cavity located between two LecA protomers of the lectin tetramer. Inspired by in silico design, we synthesized various galactosidic LecA inhibitors with aromatic moieties targeting this central pocket. These compounds reached low micromolar affinities, validated in different biophysical assays. Finally, X‐ray diffraction analysis revealed the interactions of this compound class with LecA. This new mode of action paves the way to a novel route towards inhibition of P. aeruginosa biofilms.
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Affiliation(s)
- Eike Siebs
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) Standort Hannover-, Braunschweig, Germany
| | - Elena Shanina
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany.,Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany
| | - Sakonwan Kuhaudomlarp
- Université Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France.,Department of Biochemistry and Centre for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | - Cloé Fortin
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany.,Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany
| | - Didier Rognan
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CNRS-Université de Strasbourg, Strasbourg, 67400, Illkirch, France
| | - Christoph Rademacher
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany.,Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, 14195, Berlin, Germany.,Department of Pharmaceutical Sciences, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria.,Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Biocenter 5, 1030, Vienna, Austria
| | - Anne Imberty
- Université Grenoble Alpes, CNRS, CERMAV, 38000, Grenoble, France
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123, Saarbrücken, Germany.,Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF) Standort Hannover-, Braunschweig, Germany
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14
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Gomez AM, Lopez JC. Bringing Color to Sugars: The Chemical Assembly of Carbohydrates to BODIPY Dyes. CHEM REC 2021; 21:3112-3130. [PMID: 34472184 DOI: 10.1002/tcr.202100190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/10/2021] [Indexed: 12/29/2022]
Abstract
The combination of carbohydrates with BODIPY fluorophores gives rise to a family of BODIPY-carbohydrate hybrids or glyco-BODIPYs, which mutually benefit from the encounter. Thus, from the carbohydrates standpoint, glyco-BODIPYs can be regarded as fluorescent glycoconjugate derivatives with application in imaging techniques, whereas from the fluorophore view the BODIPY-carbohydrate hybrids benefit from the biocompatibility, water-solubility, and reduced toxicity, among others, brought about by the sugar moiety. In this Account we have intended to present the collection of available methods for the synthesis of BODIPY-carbohydrate hybrids, with a focus on the chemical transformations on the BODIPY core.
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Affiliation(s)
- Ana M Gomez
- Bioorganic Chemistry Department, Instituto Quimica Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - J Cristobal Lopez
- Bioorganic Chemistry Department, Instituto Quimica Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
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15
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Harvey DJ. ANALYSIS OF CARBOHYDRATES AND GLYCOCONJUGATES BY MATRIX-ASSISTED LASER DESORPTION/IONIZATION MASS SPECTROMETRY: AN UPDATE FOR 2015-2016. MASS SPECTROMETRY REVIEWS 2021; 40:408-565. [PMID: 33725404 DOI: 10.1002/mas.21651] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/24/2020] [Indexed: 06/12/2023]
Abstract
This review is the ninth update of the original article published in 1999 on the application of matrix-assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2016. Also included are papers that describe methods appropriate to analysis by MALDI, such as sample preparation techniques, even though the ionization method is not MALDI. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions and applications to chemical synthesis. The reported work shows increasing use of combined new techniques such as ion mobility and the enormous impact that MALDI imaging is having. MALDI, although invented over 30 years ago is still an ideal technique for carbohydrate analysis and advancements in the technique and range of applications show no sign of deminishing. © 2020 Wiley Periodicals, Inc.
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Affiliation(s)
- David J Harvey
- Nuffield Department of Medicine, Target Discovery Institute, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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16
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Fittolani G, Shanina E, Guberman M, Seeberger PH, Rademacher C, Delbianco M. Automatisierte Glykan‐Assemblierung
19
F‐markierter Glykansonden ermöglicht Hochdurchsatz‐NMR‐Untersuchungen von Protein‐Glykan‐Interaktionen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Giulio Fittolani
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Elena Shanina
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Mónica Guberman
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Derzeitige Adresse: Medicinal Chemistry Leibniz-Forschungsinstitut für Molekulare Pharmakologie Robert-Rössle Straße 10 13125 Berlin Deutschland
| | - Peter H. Seeberger
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
| | - Christoph Rademacher
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
- Department of Chemistry and Biochemistry Freie Universität Berlin Arnimallee 22 14195 Berlin Deutschland
- Derzeitige Adresse: Department of Pharmaceutical Chemistry University of Vienna Althanstraße 14 1080 Wien Österreich
- Derzeitige Adresse: Department of Microbiology, Immunobiology and Genetics Max F. Perutz Labs Campus Vienna Biocenter 5 1030 Wien Österreich
| | - Martina Delbianco
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Deutschland
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17
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Fittolani G, Shanina E, Guberman M, Seeberger PH, Rademacher C, Delbianco M. Automated Glycan Assembly of 19 F-labeled Glycan Probes Enables High-Throughput NMR Studies of Protein-Glycan Interactions. Angew Chem Int Ed Engl 2021; 60:13302-13309. [PMID: 33784430 PMCID: PMC8252726 DOI: 10.1002/anie.202102690] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/19/2021] [Indexed: 12/23/2022]
Abstract
Protein-glycan interactions mediate important biological processes, including pathogen host invasion and cellular communication. Herein, we showcase an expedite approach that integrates automated glycan assembly (AGA) of 19 F-labeled probes and high-throughput NMR methods, enabling the study of protein-glycan interactions. Synthetic Lewis type 2 antigens were screened against seven glycan binding proteins (GBPs), including DC-SIGN and BambL, respectively involved in HIV-1 and lung infections in immunocompromised patients, confirming the preference for fucosylated glycans (Lex , H type 2, Ley ). Previously unknown glycan-lectin weak interactions were detected, and thermodynamic data were obtained. Enzymatic reactions were monitored in real-time, delivering kinetic parameters. These results demonstrate the utility of AGA combined with 19 F NMR for the discovery and characterization of glycan-protein interactions, opening up new perspectives for 19 F-labeled complex glycans.
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Affiliation(s)
- Giulio Fittolani
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
| | - Elena Shanina
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
| | - Mónica Guberman
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Current address: Medicinal ChemistryLeibniz-Forschungsinstitut für Molekulare PharmakologieRobert-Rössle Strasse 1013125BerlinGermany
| | - Peter H. Seeberger
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
| | - Christoph Rademacher
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
- Department of Chemistry and BiochemistryFreie Universität BerlinArnimallee 2214195BerlinGermany
- Current address: Department of Pharmaceutical ChemistryUniversity of ViennaAlthanstrasse 141080ViennaAustria
- Current address: Department of Microbiology, Immunobiology and GeneticsMax F. Perutz LabsCampus Vienna Biocenter 51030ViennaAustria
| | - Martina Delbianco
- Department of Biomolecular SystemsMax Planck Institute of Colloids and InterfacesAm Mühlenberg 114476PotsdamGermany
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18
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Kuhaudomlarp S, Siebs E, Shanina E, Topin J, Joachim I, da Silva Figueiredo Celestino Gomes P, Varrot A, Rognan D, Rademacher C, Imberty A, Titz A. Non-Carbohydrate Glycomimetics as Inhibitors of Calcium(II)-Binding Lectins. Angew Chem Int Ed Engl 2021; 60:8104-8114. [PMID: 33314528 PMCID: PMC8048816 DOI: 10.1002/anie.202013217] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Indexed: 12/21/2022]
Abstract
Because of the antimicrobial resistance crisis, lectins are considered novel drug targets. Pseudomonas aeruginosa utilizes LecA and LecB in the infection process. Inhibition of both lectins with carbohydrate-derived molecules can reduce biofilm formation to restore antimicrobial susceptibility. Here, we focused on non-carbohydrate inhibitors for LecA to explore new avenues for lectin inhibition. From a screening cascade we obtained one experimentally confirmed hit, a catechol, belonging to the well-known PAINS compounds. Rigorous analyses validated electron-deficient catechols as millimolar LecA inhibitors. The first co-crystal structure of a non-carbohydrate inhibitor in complex with a bacterial lectin clearly demonstrates the catechol mimicking the binding of natural glycosides with LecA. Importantly, catechol 3 is the first non-carbohydrate lectin ligand that binds bacterial and mammalian calcium(II)-binding lectins, giving rise to this fundamentally new class of glycomimetics.
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Affiliation(s)
| | - Eike Siebs
- Chemical Biology of Carbohydrates (CBCH)Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Hannover-BraunschweigGermany
| | - Elena Shanina
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces14424PotsdamGermany
- Institute of Chemistry and BiochemistryDepartment of Biology, Chemistry and PharmacyFreie Universität Berlin14195BerlinGermany
| | - Jérémie Topin
- Université Grenoble AlpesCNRSCERMAV38000GrenobleFrance
- Institute of Chemistry-NiceUMR 7272 CNRSUniversité Côte d'Azur06108NiceFrance
| | - Ines Joachim
- Chemical Biology of Carbohydrates (CBCH)Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Hannover-BraunschweigGermany
| | | | | | - Didier Rognan
- Laboratoire d'Innovation ThérapeutiqueUMR 7200 CNRS-Université de Strasbourg67400IllkirchFrance
| | - Christoph Rademacher
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces14424PotsdamGermany
- Institute of Chemistry and BiochemistryDepartment of Biology, Chemistry and PharmacyFreie Universität Berlin14195BerlinGermany
| | - Anne Imberty
- Université Grenoble AlpesCNRSCERMAV38000GrenobleFrance
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH)Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS)Helmholtz Centre for Infection Research66123SaarbrückenGermany
- Department of ChemistrySaarland University66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF)Hannover-BraunschweigGermany
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19
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Kuhaudomlarp S, Siebs E, Shanina E, Topin J, Joachim I, Silva Figueiredo Celestino Gomes P, Varrot A, Rognan D, Rademacher C, Imberty A, Titz A. Non‐Carbohydrate Glycomimetics as Inhibitors of Calcium(II)‐Binding Lectins. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Eike Siebs
- Chemical Biology of Carbohydrates (CBCH) Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre for Infection Research 66123 Saarbrücken Germany
- Department of Chemistry Saarland University 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF) Hannover-Braunschweig Germany
| | - Elena Shanina
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces 14424 Potsdam Germany
- Institute of Chemistry and Biochemistry Department of Biology, Chemistry and Pharmacy Freie Universität Berlin 14195 Berlin Germany
| | - Jérémie Topin
- Université Grenoble Alpes CNRS CERMAV 38000 Grenoble France
- Institute of Chemistry-Nice UMR 7272 CNRS Université Côte d'Azur 06108 Nice France
| | - Ines Joachim
- Chemical Biology of Carbohydrates (CBCH) Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre for Infection Research 66123 Saarbrücken Germany
- Department of Chemistry Saarland University 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF) Hannover-Braunschweig Germany
| | | | | | - Didier Rognan
- Laboratoire d'Innovation Thérapeutique UMR 7200 CNRS-Université de Strasbourg 67400 Illkirch France
| | - Christoph Rademacher
- Department of Biomolecular Systems Max Planck Institute of Colloids and Interfaces 14424 Potsdam Germany
- Institute of Chemistry and Biochemistry Department of Biology, Chemistry and Pharmacy Freie Universität Berlin 14195 Berlin Germany
| | - Anne Imberty
- Université Grenoble Alpes CNRS CERMAV 38000 Grenoble France
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH) Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre for Infection Research 66123 Saarbrücken Germany
- Department of Chemistry Saarland University 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF) Hannover-Braunschweig Germany
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20
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Hanaya K, Ohtsu H, Kawano M, Higashibayashi S, Sugai T. Nickel(II)‐Mediated C−S Cross‐Coupling Between Thiols and
ortho
‐Substituted Arylboronic Acid. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000724] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kengo Hanaya
- Faculty of Pharmacy Keio University 1-5-30 Shibakoen, Minato-ku Tokyo Japan
| | - Hiroyoshi Ohtsu
- Department of Chemistry School of Science Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Masaki Kawano
- Department of Chemistry School of Science Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | | | - Takeshi Sugai
- Faculty of Pharmacy Keio University 1-5-30 Shibakoen, Minato-ku Tokyo Japan
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21
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Damalanka VC, Maddirala AR, Janetka JW. Novel approaches to glycomimetic design: development of small molecular weight lectin antagonists. Expert Opin Drug Discov 2021; 16:513-536. [PMID: 33337918 DOI: 10.1080/17460441.2021.1857721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: The direct binding of carbohydrates or those presented on glycoproteins or glycolipids to proteins is the primary effector of many biological responses. One class of carbohydrate-binding proteins, lectins are important in all forms of life. Their functions in animals include regulating cell adhesion, glycoprotein synthesis, metabolism, and mediating immune system response while in bacteria and viruses a lectin-mediated carbohydrate-protein interaction between host cells and the pathogen initiates pathogenesis of the infection.Areas covered: In this review, the authors outline the structural and functional pathogenesis of lectins from bacteria, amoeba, and humans. Mimics of a carbohydrate are referred to as glycomimetics, which are much smaller in molecular weight and are devised to mimic the key binding interactions of the carbohydrate while also allowing additional contacts with the lectin. This article emphasizes the various approaches used over the past 10-15 years in the rational design of glycomimetic ligands.Expert opinion: Medicinal chemistry efforts enabled by X-ray structural biology have identified small-molecule glycomimetic lectin antagonists that have entered or are nearing clinical trials. A common theme in these strategies is the use of biaryl ring systems to emulate the carbohydrate interactions with the lectin.
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Affiliation(s)
- Vishnu C Damalanka
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis USA
| | - Amarendar Reddy Maddirala
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis USA
| | - James W Janetka
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis USA
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22
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Meiers J, Zahorska E, Röhrig T, Hauck D, Wagner S, Titz A. Directing Drugs to Bugs: Antibiotic-Carbohydrate Conjugates Targeting Biofilm-Associated Lectins of Pseudomonas aeruginosa. J Med Chem 2020; 63:11707-11724. [PMID: 32924479 PMCID: PMC7586336 DOI: 10.1021/acs.jmedchem.0c00856] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chronic infections by Pseudomonas aeruginosa are characterized by biofilm formation, which effectively enhances resistance toward antibiotics. Biofilm-specific antibiotic delivery could locally increase drug concentration to break antimicrobial resistance and reduce the drug's peripheral side effects. Two extracellular P. aeruginosa lectins, LecA and LecB, are essential structural components for biofilm formation and thus render a possible anchor for biofilm-targeted drug delivery. The standard-of-care drug ciprofloxacin suffers from severe systemic side effects and was therefore chosen for this approach. We synthesized several ciprofloxacin-carbohydrate conjugates and established a structure-activity relationship. Conjugation of ciprofloxacin to lectin probes enabled biofilm accumulation in vitro, reduced the antibiotic's cytotoxicity, but also reduced its antibiotic activity against planktonic cells due to a reduced cell permeability and on target activity. This work defines the starting point for new biofilm/lectin-targeted drugs to modulate antibiotic properties and ultimately break antimicrobial resistance.
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Affiliation(s)
- Joscha Meiers
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, D-38124 Braunschweig, Germany.,Department of Pharmacy and Department of Chemistry, Saarland University, D-66123 Saarbrücken, Germany
| | - Eva Zahorska
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, D-38124 Braunschweig, Germany.,Department of Pharmacy and Department of Chemistry, Saarland University, D-66123 Saarbrücken, Germany
| | - Teresa Röhrig
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, D-38124 Braunschweig, Germany.,Drug Design and Optimization (DDOP), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, D-38124 Braunschweig, Germany
| | - Stefanie Wagner
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, D-38124 Braunschweig, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, D-38124 Braunschweig, Germany.,Department of Pharmacy and Department of Chemistry, Saarland University, D-66123 Saarbrücken, Germany
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23
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Freichel T, Heine V, Laaf D, Mackintosh EE, Sarafova S, Elling L, Snyder NL, Hartmann L. Sequence-Defined Heteromultivalent Precision Glycomacromolecules Bearing Sulfonated/Sulfated Nonglycosidic Moieties Preferentially Bind Galectin-3 and Delay Wound Healing of a Galectin-3 Positive Tumor Cell Line in an In Vitro Wound Scratch Assay. Macromol Biosci 2020; 20:e2000163. [PMID: 32715650 PMCID: PMC9831253 DOI: 10.1002/mabi.202000163] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/28/2020] [Indexed: 01/12/2023]
Abstract
Within this work, a new class of sequence-defined heteromultivalent glycomacromolecules bearing lactose residues and nonglycosidic motifs for probing glycoconjugate recognition in carbohydrate recognition domain (CRD) of galectin-3 is presented. Galectins, a family of β-galactoside-binding proteins, are known to play crucial roles in different signaling pathways involved in tumor biology. Thus, research has focused on the design and synthesis of galectin-targeting ligands for use as diagnostic markers or potential therapeutics. Heteromultivalent precision glycomacromolecules have the potential to serve as ligands for galectins. In this work, multivalency and the introduction of nonglycosidic motifs bearing either neutral, amine, or sulfonated/sulfated groups are used to better understand binding in the galectin-3 CRD. Enzyme-linked immunosorbent assays and surface plasmon resonance studies are performed, revealing a positive impact of the sulfonated/sulfated nonglycosidic motifs on galectin-3 binding but not on galectin-1 binding. Selected compounds are then tested with galectin-3 positive MCF 7 breast cancer cells using an in vitro would scratch assay. Preliminary results demonstrate a differential biological effect on MCF 7 cells with high galectin-3 expression in comparison to an HEK 293 control with low galectin-3 expression, indicating the potential for sulfonated/sulfated heteromultivalent glycomacromolecules to serve as preferential ligands for galectin-3 targeting.
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Affiliation(s)
- Tanja Freichel
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine University Düsseldorf, Universitätsstraße 1, Düsseldorf 40225, Germany
| | - Viktoria Heine
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstr. 20, Aachen 52074, Germany
| | - Dominic Laaf
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstr. 20, Aachen 52074, Germany
| | | | - Sophia Sarafova
- Department of Biology, Davidson College, Box 7188, Davidson, NC 28035, USA
| | - Lothar Elling
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstr. 20, Aachen 52074, Germany
| | - Nicole L. Snyder
- Department of Chemistry, Davidson College, Box 7120, Davidson, NC 28035, USA
| | - Laura Hartmann
- Institute of Organic and Macromolecular Chemistry Heinrich-Heine University Düsseldorf Universitätsstraße 1, Düsseldorf 40225, Germany
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24
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Shanina E, Siebs E, Zhang H, Varón Silva D, Joachim I, Titz A, Rademacher C. Protein-observed 19F NMR of LecA from Pseudomonas aeruginosa. Glycobiology 2020; 31:159-165. [PMID: 32573695 PMCID: PMC7874386 DOI: 10.1093/glycob/cwaa057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/05/2020] [Accepted: 06/16/2020] [Indexed: 12/26/2022] Open
Abstract
The carbohydrate-binding protein LecA (PA-IL) from Pseudomonas aeruginosa plays an important role in the formation of biofilms in chronic infections. Development of inhibitors to disrupt LecA-mediated biofilms is desired but it is limited to carbohydrate-based ligands. Moreover, discovery of drug-like ligands for LecA is challenging because of its weak affinities. Therefore, we established a protein-observed 19F (PrOF) nuclear magnetic resonance (NMR) to probe ligand binding to LecA. LecA was labeled with 5-fluoroindole to incorporate 5-fluorotryptophanes and the resonances were assigned by site-directed mutagenesis. This incorporation did not disrupt LecA preference for natural ligands, Ca2+ and d-galactose. Following NMR perturbation of W42, which is located in the carbohydrate-binding region of LecA, allowed to monitor binding of low-affinity ligands such as N-acetyl d-galactosamine (d-GalNAc, Kd = 780 ± 97 μM). Moreover, PrOF NMR titration with glycomimetic of LecA p-nitrophenyl β-d-galactoside (pNPGal, Kd = 54 ± 6 μM) demonstrated a 6-fold improved binding of d-Gal proving this approach to be valuable for ligand design in future drug discovery campaigns that aim to generate inhibitors of LecA.
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Affiliation(s)
- Elena Shanina
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg, 14424 Potsdam, Germany.,Free University of Berlin, Department of Biochemistry and Chemistry, 14195 Berlin, Germany
| | - Eike Siebs
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.,Saarland University, Department of Pharmacy, 66123 Saarbrücken, Germany.,German Center for Infection Research, Hannover-Braunschweig, Germany
| | - Hengxi Zhang
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg, 14424 Potsdam, Germany.,Free University of Berlin, Department of Biochemistry and Chemistry, 14195 Berlin, Germany
| | - Daniel Varón Silva
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg, 14424 Potsdam, Germany.,Free University of Berlin, Department of Biochemistry and Chemistry, 14195 Berlin, Germany
| | - Ines Joachim
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.,Saarland University, Department of Pharmacy, 66123 Saarbrücken, Germany.,German Center for Infection Research, Hannover-Braunschweig, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland, Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.,Saarland University, Department of Pharmacy, 66123 Saarbrücken, Germany.,German Center for Infection Research, Hannover-Braunschweig, Germany
| | - Christoph Rademacher
- Max Planck Institute of Colloids and Interfaces, Department of Biomolecular Systems, Am Mühlenberg, 14424 Potsdam, Germany.,Free University of Berlin, Department of Biochemistry and Chemistry, 14195 Berlin, Germany
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25
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Zahorska E, Kuhaudomlarp S, Minervini S, Yousaf S, Lepsik M, Kinsinger T, Hirsch AKH, Imberty A, Titz A. A rapid synthesis of low-nanomolar divalent LecA inhibitors in four linear steps from d-galactose pentaacetate. Chem Commun (Camb) 2020; 56:8822-8825. [DOI: 10.1039/d0cc03490h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Design and four step synthesis of simple, readily accessible low-nanomolar divalent LecA ligands with selectivity over human galectin-1.
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Affiliation(s)
- Eva Zahorska
- Chemical Biology of Carbohydrates
- Helmholtz Institute for Pharmaceutical Research Saarland
- Helmholtz Centre for Infection Research
- 66123 Saarbrücken
- Germany
| | | | - Saverio Minervini
- Chemical Biology of Carbohydrates
- Helmholtz Institute for Pharmaceutical Research Saarland
- Helmholtz Centre for Infection Research
- 66123 Saarbrücken
- Germany
| | - Sultaan Yousaf
- Chemical Biology of Carbohydrates
- Helmholtz Institute for Pharmaceutical Research Saarland
- Helmholtz Centre for Infection Research
- 66123 Saarbrücken
- Germany
| | - Martin Lepsik
- Université Grenoble Alpes
- CNRS
- CERMAV
- 38000 Grenoble
- France
| | - Thorsten Kinsinger
- Chemical Biology of Carbohydrates
- Helmholtz Institute for Pharmaceutical Research Saarland
- Helmholtz Centre for Infection Research
- 66123 Saarbrücken
- Germany
| | - Anna K. H. Hirsch
- Deutsches Zentrum für Infektionsforschung (DZIF)
- Standort Hannover-Braunschweig
- 38124 Braunschweig
- Germany
- Department of Pharmacy
| | - Anne Imberty
- Université Grenoble Alpes
- CNRS
- CERMAV
- 38000 Grenoble
- France
| | - Alexander Titz
- Chemical Biology of Carbohydrates
- Helmholtz Institute for Pharmaceutical Research Saarland
- Helmholtz Centre for Infection Research
- 66123 Saarbrücken
- Germany
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26
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Bertin-Jung I, Robert A, Ramalanjaona N, Gulberti S, Bui C, Vincourt JB, Ouzzine M, Jacquinet JC, Lopin-Bon C, Fournel-Gigleux S. A versatile strategy to synthesize N-methyl-anthranilic acid-labelled glycoprobes for fluorescence-based screening assays. Chem Commun (Camb) 2020; 56:10746-10749. [DOI: 10.1039/d0cc03882b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we propose a general strategy to label carbohydrates with N-methyl-anthranilic acid to generate glycotools for fluorescence-based screening and carbohydrate–protein interaction studies.
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Affiliation(s)
- Isabelle Bertin-Jung
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | - Anne Robert
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | - Nick Ramalanjaona
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | - Sandrine Gulberti
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | - Catherine Bui
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | - Jean-Baptiste Vincourt
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | - Mohamed Ouzzine
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
| | | | | | - Sylvie Fournel-Gigleux
- Laboratoire IMoPA UMR 7365 CNRS-Université de Lorraine
- Biopôle de la Faculté de Médecine CS 50184
- 54505 Vandœuvre-lès-Nancy Cedex
- France
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27
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de la Cruz N, Ramos-Soriano J, Reina JJ, de Paz JL, Thépaut M, Fieschi F, Sousa-Herves A, Rojo J. Influence of the reducing-end anomeric configuration of the Man9 epitope on DC-SIGN recognition. Org Biomol Chem 2020; 18:6086-6094. [DOI: 10.1039/d0ob01380c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The anomeric configuration of the reducing end of Man9 does not influence the binding to DC-SIGN.
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Affiliation(s)
- Noelia de la Cruz
- Glycosystems Laboratory
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- Seville 41092
- Spain
| | - Javier Ramos-Soriano
- Glycosystems Laboratory
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- Seville 41092
- Spain
| | - José J. Reina
- Glycosystems Laboratory
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- Seville 41092
- Spain
| | - José L. de Paz
- Glycosystems Laboratory
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- Seville 41092
- Spain
| | - Michel Thépaut
- Univ. Grenoble Alpes
- CNRS
- CEA
- Institut de Biologie Structurale
- 38000 Grenoble
| | - Franck Fieschi
- Univ. Grenoble Alpes
- CNRS
- CEA
- Institut de Biologie Structurale
- 38000 Grenoble
| | - Ana Sousa-Herves
- Glycosystems Laboratory
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- Seville 41092
- Spain
| | - Javier Rojo
- Glycosystems Laboratory
- Instituto de Investigaciones Químicas (IIQ)
- CSIC – Universidad de Sevilla
- Seville 41092
- Spain
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28
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Lectin antagonists in infection, immunity, and inflammation. Curr Opin Chem Biol 2019; 53:51-67. [DOI: 10.1016/j.cbpa.2019.07.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/12/2019] [Accepted: 07/18/2019] [Indexed: 12/12/2022]
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29
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Neuhaus K, Wamhoff EC, Freichel T, Grafmüller A, Rademacher C, Hartmann L. Asymmetrically Branched Precision Glycooligomers Targeting Langerin. Biomacromolecules 2019; 20:4088-4095. [PMID: 31600054 DOI: 10.1021/acs.biomac.9b00906] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Asymmetrically branched precision glycooligomers are synthesized by solid-phase polymer synthesis for studying multivalent carbohydrate-protein interactions. Through the stepwise assembly of Fmoc-protected oligo(amidoamine) building blocks and Fmoc/Dde-protected lysine, straightforward variation of structural parameters such as the number and length of arms, as well as the number and position of carbohydrate ligands, is achieved. Binding of 1-arm and 3-arm glycooligomers toward lectin receptors langerin and concanavalin A (ConA) was evaluated where the smallest 3-arm glycooligomer shows the highest binding toward langerin, and stepwise elongation of one, two, or all three arms leads to decreased binding. When directly comparing binding toward langerin and ConA, we find that structural variation of the scaffold affects glycomimetic ligand binding differently for the different targets, indicating the potential to tune such ligands not only for their avidity but also for their selectivity toward different lectins.
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Affiliation(s)
- Kira Neuhaus
- Institute of Organic Chemistry and Macromolecular Chemistry , Heinrich-Heine-Universität Düsseldorf , Universitätsstr. 1 , 40225 Düsseldorf , Germany
| | - Eike-Christian Wamhoff
- Department of Biomolecular Systems , Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14424 Potsdam , Germany.,Department of Biology, Chemistry and Pharmacy , Freie Universität Berlin , Königin-Luise-Straße 28-30 , 14195 Berlin , Germany
| | - Tanja Freichel
- Institute of Organic Chemistry and Macromolecular Chemistry , Heinrich-Heine-Universität Düsseldorf , Universitätsstr. 1 , 40225 Düsseldorf , Germany
| | - Andrea Grafmüller
- Department of Theory and Bio-Systems , Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14424 Potsdam , Germany
| | - Christoph Rademacher
- Department of Biomolecular Systems , Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1 , 14424 Potsdam , Germany.,Department of Biology, Chemistry and Pharmacy , Freie Universität Berlin , Königin-Luise-Straße 28-30 , 14195 Berlin , Germany
| | - Laura Hartmann
- Institute of Organic Chemistry and Macromolecular Chemistry , Heinrich-Heine-Universität Düsseldorf , Universitätsstr. 1 , 40225 Düsseldorf , Germany
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30
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Hill SA, Gerke C, Hartmann L. Recent Developments in Solid-Phase Strategies towards Synthetic, Sequence-Defined Macromolecules. Chem Asian J 2018; 13:3611-3622. [PMID: 30216690 DOI: 10.1002/asia.201801171] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Indexed: 01/09/2023]
Abstract
Sequence-control in synthetic polymers is an important contemporary research area because it provides the opportunity to create completely novel materials for structure-function studies. This is especially relevant for biomimetic polymers, bioactive and information security materials. The level of control is strongly dependent and inherent upon the polymerization technique utilized. Today, the most established method yielding monodispersity and monomer sequence-definition is solid-phase synthesis. This Focus Review highlights recent advances in solid-phase strategies to access synthetic, sequence-defined macromolecules. Alternatives strategies towards sequence-defined macromolecules are also briefly summarized.
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Affiliation(s)
- Stephen A Hill
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Christoph Gerke
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Laura Hartmann
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
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31
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Calvert MB, Jumde VR, Titz A. Pathoblockers or antivirulence drugs as a new option for the treatment of bacterial infections. Beilstein J Org Chem 2018; 14:2607-2617. [PMID: 30410623 PMCID: PMC6204809 DOI: 10.3762/bjoc.14.239] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 09/20/2018] [Indexed: 12/19/2022] Open
Abstract
The rapid development of antimicrobial resistance is threatening mankind to such an extent that the World Health Organization expects more deaths from infections than from cancer in 2050 if current trends continue. To avoid this scenario, new classes of anti-infectives must urgently be developed. Antibiotics with new modes of action are needed, but other concepts are also currently being pursued. Targeting bacterial virulence as a means of blocking pathogenicity is a promising new strategy for disarming pathogens. Furthermore, it is believed that this new approach is less susceptible towards resistance development. In this review, recent examples of anti-infective compounds acting on several types of bacterial targets, e.g., adhesins, toxins and bacterial communication, are described.
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Affiliation(s)
- Matthew B Calvert
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Varsha R Jumde
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), D-66123 Saarbrücken, Germany.,Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany.,Department of Pharmacy, Saarland University, Saarbrücken, Germany
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32
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Dingjan T, Gillon É, Imberty A, Pérez S, Titz A, Ramsland PA, Yuriev E. Virtual Screening Against Carbohydrate-Binding Proteins: Evaluation and Application to Bacterial Burkholderia ambifaria Lectin. J Chem Inf Model 2018; 58:1976-1989. [DOI: 10.1021/acs.jcim.8b00185] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamir Dingjan
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Émilie Gillon
- University Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Anne Imberty
- University Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Serge Pérez
- University Grenoble Alpes, CNRS, DPM, 38000 Grenoble, France
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, D-66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
- Department of Pharmacy, Saarland University, D-66123 Saarbrücken, Germany
| | - Paul A. Ramsland
- School of Science, RMIT University, Bundoora, Victoria 3083, Australia
- Department of Surgery Austin Health, University of Melbourne, Heidelberg, Victoria 3084, Australia
- Department of Immunology, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria 3004, Australia
- Burnet Institute, Melbourne, Victoria 3004, Australia
| | - Elizabeth Yuriev
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
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Oversized galactosides as a probe for conformational dynamics in LacY. Proc Natl Acad Sci U S A 2018; 115:4146-4151. [PMID: 29602806 DOI: 10.1073/pnas.1800706115] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Binding kinetics of α-galactopyranoside homologs with fluorescent aglycones of different sizes and shapes were determined with the lactose permease (LacY) of Escherichia coli by FRET from Trp151 in the binding site of LacY to the fluorophores. Fast binding was observed with LacY stabilized in an outward-open conformation (kon = 4-20 μM-1·s-1), indicating unobstructed access to the binding site even for ligands that are much larger than lactose. Dissociation rate constants (koff) increase with the size of the aglycone so that Kd values also increase but remain in the micromolar range for each homolog. Phe27 (helix I) forms an apparent constriction in the pathway for sugar by protruding into the periplasmic cavity. However, replacement of Phe27 with a bulkier Trp does not create an obstacle in the pathway even for large ligands, since binding kinetics remain unchanged. High accessibility of the binding site is also observed in a LacY/nanobody complex with partially blocked periplasmic opening. Remarkably, E. coli expressing WT LacY catalyzes transport of α- or β-galactopyranosides with oversized aglycones such as bodipy or Aldol518, which may require an extra space within the occluded intermediate. The results confirm that LacY specificity is strictly directed toward the galactopyranoside ring and also clearly indicate that the opening on the periplasmic side is sufficiently wide to accommodate the large galactoside derivatives tested here. We conclude that the actual pathway for the substrate entering from the periplasmic side is wider than the pore diameter calculated in the periplasmic-open X-ray structures.
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Development of Pseudomonas aeruginosa
Lectin LecA Inhibitor by using Bivalent Galactosides Supported on Polyproline Peptide Scaffolds. Chem Asian J 2018; 13:686-700. [DOI: 10.1002/asia.201701724] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/24/2018] [Indexed: 12/21/2022]
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Wagner S, Hauck D, Hoffmann M, Sommer R, Joachim I, Müller R, Imberty A, Varrot A, Titz A. Covalent Lectin Inhibition and Application in Bacterial Biofilm Imaging. Angew Chem Int Ed Engl 2017; 56:16559-16564. [PMID: 28960731 PMCID: PMC5767747 DOI: 10.1002/anie.201709368] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 12/12/2022]
Abstract
Biofilm formation by pathogenic bacteria is a hallmark of chronic infections. In many cases, lectins play key roles in establishing biofilms. The pathogen Pseudomonas aeruginosa often exhibiting various drug resistances employs its lectins LecA and LecB as virulence factors and biofilm building blocks. Therefore, inhibition of the function of these proteins is thought to have potential in developing "pathoblockers" preventing biofilm formation and virulence. A covalent lectin inhibitor specific to a carbohydrate binding site is described for the first time. Its application in the LecA-specific in vitro imaging of biofilms formed by P. aeruginosa is also reported.
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Affiliation(s)
- Stefanie Wagner
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Dirk Hauck
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Michael Hoffmann
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
- Microbial Natural SubstancesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
| | - Roman Sommer
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Ines Joachim
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
| | - Rolf Müller
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
- Microbial Natural SubstancesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
| | - Anne Imberty
- Université Grenoble AlpesCNRS, CERMAV38000GrenobleFrance
| | | | - Alexander Titz
- Chemical Biology of CarbohydratesHelmholtz Institute for Pharmaceutical Research Saarland (HIPS)66123SaarbrückenGermany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-BraunschweigGermany
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Dai X, Chen X, Zhao Y, Yu Y, Wei X, Zhang X, Li C. A Water-Soluble Galactose-Decorated Cationic Photodynamic Therapy Agent Based on BODIPY to Selectively Eliminate Biofilm. Biomacromolecules 2017; 19:141-149. [DOI: 10.1021/acs.biomac.7b01316] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Xiaomei Dai
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xuelei Chen
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yu Zhao
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yunjian Yu
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaosong Wei
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xinge Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chaoxing Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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Wagner S, Hauck D, Hoffmann M, Sommer R, Joachim I, Müller R, Imberty A, Varrot A, Titz A. Covalent Lectin Inhibition and Application in Bacterial Biofilm Imaging. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709368] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Stefanie Wagner
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Dirk Hauck
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Michael Hoffmann
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
- Microbial Natural Substances; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
| | - Roman Sommer
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Ines Joachim
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
| | - Rolf Müller
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
- Microbial Natural Substances; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
| | - Anne Imberty
- Université Grenoble Alpes; CNRS, CERMAV; 38000 Grenoble France
| | | | - Alexander Titz
- Chemical Biology of Carbohydrates; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS); 66123 Saarbrücken Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig; Germany
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Beshr G, Sikandar A, Jemiller EM, Klymiuk N, Hauck D, Wagner S, Wolf E, Koehnke J, Titz A. Photorhabdus luminescens lectin A (PllA): A new probe for detecting α-galactoside-terminating glycoconjugates. J Biol Chem 2017; 292:19935-19951. [PMID: 28972138 DOI: 10.1074/jbc.m117.812792] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 09/25/2017] [Indexed: 11/06/2022] Open
Abstract
Lectins play important roles in infections by pathogenic bacteria, for example, in host colonization, persistence, and biofilm formation. The Gram-negative entomopathogenic bacterium Photorhabdus luminescens symbiotically lives in insect-infecting Heterorhabditis nematodes and kills the insect host upon invasion by the nematode. The P. luminescens genome harbors the gene plu2096, coding for a novel lectin that we named PllA. We analyzed the binding properties of purified PllA with a glycan array and a binding assay in solution. Both assays revealed a strict specificity of PllA for α-galactoside-terminating glycoconjugates. The crystal structures of apo PllA and complexes with three different ligands revealed the molecular basis for the strict specificity of this lectin. Furthermore, we found that a 90° twist in subunit orientation leads to a peculiar quaternary structure compared with that of its ortholog LecA from Pseudomonas aeruginosa We also investigated the utility of PllA as a probe for detecting α-galactosides. The α-Gal epitope is present on wild-type pig cells and is the main reason for hyperacute organ rejection in pig to primate xenotransplantation. We noted that PllA specifically recognizes this epitope on the glycan array and demonstrated that PllA can be used as a fluorescent probe to detect this epitope on primary porcine cells in vitro In summary, our biochemical and structural analyses of the P. luminescens lectin PllA have disclosed the structural basis for PllA's high specificity for α-galactoside-containing ligands, and we show that PllA can be used to visualize the α-Gal epitope on porcine tissues.
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Affiliation(s)
- Ghamdan Beshr
- From the Divisions of Chemical Biology of Carbohydrates and.,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig.,the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and
| | - Asfandyar Sikandar
- the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and.,Structural Biology of Biosynthetic Enzymes, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken
| | - Eva-Maria Jemiller
- the Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Nikolai Klymiuk
- the Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Dirk Hauck
- From the Divisions of Chemical Biology of Carbohydrates and.,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig
| | - Stefanie Wagner
- From the Divisions of Chemical Biology of Carbohydrates and.,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig
| | - Eckhard Wolf
- the Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, Ludwig Maximilian University of Munich, 81377 Munich, Germany
| | - Jesko Koehnke
- the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and .,Structural Biology of Biosynthetic Enzymes, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken
| | - Alexander Titz
- From the Divisions of Chemical Biology of Carbohydrates and .,the Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig.,the Department of Pharmacy, Saarland University, 66123 Saarbrücken, and
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Hu Y, Beshr G, Garvey CJ, Tabor RF, Titz A, Wilkinson BL. Photoswitchable Janus glycodendrimer micelles as multivalent inhibitors of LecA and LecB from Pseudomonas aeruginosa. Colloids Surf B Biointerfaces 2017; 159:605-612. [PMID: 28858663 DOI: 10.1016/j.colsurfb.2017.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/31/2017] [Accepted: 08/10/2017] [Indexed: 12/18/2022]
Abstract
The first example of the self-assembly and lectin binding properties of photoswitchable glycodendrimer micelles is reported. Light-addressable micelles were assembled from a library of 12 amphiphilic Janus glycodendrimers composed of variable carbohydrate head groups and hydrophobic tail groups linked to an azobenzene core. Spontaneous association in water gave cylindrical micelles with uniform size distribution as determined by dynamic light scattering (DLS) and small angle neutron scattering (SANS). Trans-cis photoisomerization of the azobenzene dendrimer core was used to probe the self-assembly behaviour and lectin binding properties of cylindrical micelles, revealing moderate-to-potent inhibition of lectins LecA and LecB from Pseudomonas aeruginosa.
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Affiliation(s)
- Yingxue Hu
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Ghamdan Beshr
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung, Standort Hannover, Braunschweig, Germany
| | - Christopher J Garvey
- Australian Centre for Neutron scattering, ANSTO, Lucas Heights, New South Wales 2234, Australia
| | - Rico F Tabor
- School of Chemistry, Monash University, Victoria 3800, Australia
| | - Alexander Titz
- Chemical Biology of Carbohydrates, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), D-66123 Saarbrücken, Germany; Deutsches Zentrum für Infektionsforschung, Standort Hannover, Braunschweig, Germany
| | - Brendan L Wilkinson
- School of Science and Technology, the University of New England, New South Wales 2351, Australia.
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40
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Kamal AAM, Maurer CK, Allegretta G, Haupenthal J, Empting M, Hartmann RW. Quorum Sensing Inhibitors as Pathoblockers for Pseudomonas aeruginosa Infections: A New Concept in Anti-Infective Drug Discovery. TOPICS IN MEDICINAL CHEMISTRY 2017. [DOI: 10.1007/7355_2017_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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