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Kalas V, Nguyen J, Wan AW, Dietch ZC, Kulik L, Hughes DL. Acute-on-Chronic Liver Failure Incited by Cyclin-Dependent Kinase Inhibitor Therapy for Breast Cancer Effectively Treated With Liver Transplantation. ACG Case Rep J 2024; 11:e01253. [PMID: 38274302 PMCID: PMC10810594 DOI: 10.14309/crj.0000000000001253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 12/07/2023] [Indexed: 01/27/2024] Open
Abstract
Cyclin-dependent kinase 4/6 inhibitors are targeted therapies demonstrated to significantly improve overall survival as adjuvant treatment of estrogen receptor-positive breast cancers. Although intended to preferentially arrest cell cycle transitions in tumor cells, these agents can have undesirable systemic side effects, including hepatotoxicity. We report the first case of cyclin-dependent kinase 4/6 inhibitor therapy leading to acute-on-chronic liver failure requiring liver transplantation. Our case highlights the multidisciplinary approach required to manage acute-on-chronic liver failure induced by cancer-directed therapies in those with extrahepatic malignancies.
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Affiliation(s)
- Vasilios Kalas
- Division of Gastroenterology and Hepatology, Department of Medicine, Northwestern University, Chicago, IL
| | - Jessica Nguyen
- Department of Pathology, Northwestern University, Chicago, IL
| | - Alan W. Wan
- Division of Hematology and Oncology, Department of Medicine, Northwestern University, Chicago, IL
| | - Zachary C. Dietch
- Department of Transplant Surgery, Northwestern University, Chicago, IL
| | - Laura Kulik
- Division of Gastroenterology and Hepatology, Department of Medicine, Northwestern University, Chicago, IL
| | - Dempsey L. Hughes
- Division of Gastroenterology and Hepatology, Department of Medicine, Northwestern University, Chicago, IL
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Tamadonfar KO, Di Venanzio G, Pinkner JS, Dodson KW, Kalas V, Zimmerman MI, Bazan Villicana J, Bowman GR, Feldman MF, Hultgren SJ. Structure-function correlates of fibrinogen binding by Acinetobacter adhesins critical in catheter-associated urinary tract infections. Proc Natl Acad Sci U S A 2023; 120:e2212694120. [PMID: 36652481 PMCID: PMC9942807 DOI: 10.1073/pnas.2212694120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/17/2022] [Indexed: 01/19/2023] Open
Abstract
Multidrug-resistant Acinetobacter baumannii infections are an urgent clinical problem and can cause difficult-to-treat nosocomial infections. During such infections, like catheter-associated urinary tract infections (CAUTI), A. baumannii rely on adhesive, extracellular fibers, called chaperone-usher pathway (CUP) pili for critical binding interactions. The A. baumannii uropathogenic strain, UPAB1, and the pan-European subclone II isolate, ACICU, use the CUP pili Abp1 and Abp2 (previously termed Cup and Prp, respectively) in tandem to establish CAUTIs, specifically to facilitate bacterial adherence and biofilm formation on the implanted catheter. Abp1 and Abp2 pili are tipped with two domain tip adhesins, Abp1D and Abp2D, respectively. We discovered that both adhesins bind fibrinogen, a critical host wound response protein that is released into the bladder upon catheterization and is subsequently deposited on the catheter. The crystal structures of the Abp1D and Abp2D receptor-binding domains were determined and revealed that they both contain a large, distally oriented pocket, which mediates binding to fibrinogen and other glycoproteins. Genetic, biochemical, and biophysical studies revealed that interactions with host proteins are governed by several critical residues in and along the edge of the binding pocket, one of which regulates the structural stability of an anterior loop motif. K34, located outside of the pocket but interacting with the anterior loop, also regulates the binding affinity of the protein. This study illuminates the mechanistic basis of the critical fibrinogen-coated catheter colonization step in A. baumannii CAUTI pathogenesis.
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Affiliation(s)
- Kevin O. Tamadonfar
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
- Center for Women’s Infectious Disease Research, Washington University School of Medicine, St Louis, MO63110
| | - Gisela Di Venanzio
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
| | - Jerome S. Pinkner
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
- Center for Women’s Infectious Disease Research, Washington University School of Medicine, St Louis, MO63110
| | - Karen W. Dodson
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
- Center for Women’s Infectious Disease Research, Washington University School of Medicine, St Louis, MO63110
| | - Vasilios Kalas
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
- Center for Women’s Infectious Disease Research, Washington University School of Medicine, St Louis, MO63110
- Department of Medicine, McGaw Medical Center of Northwestern University, Chicago, IL60611
| | - Maxwell I. Zimmerman
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO63110
| | - Jesus Bazan Villicana
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
- Center for Women’s Infectious Disease Research, Washington University School of Medicine, St Louis, MO63110
| | - Gregory R. Bowman
- Department of Biochemistry & Molecular Biophysics, Washington University School of Medicine, St. Louis, MO63110
- Department of Biomedical Engineering and Center for Biological Systems Engineering, Washington University School of Medicine, St. Louis, MO63110
| | - Mario F. Feldman
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
| | - Scott J. Hultgren
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO63110
- Center for Women’s Infectious Disease Research, Washington University School of Medicine, St Louis, MO63110
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Brown JW, Das KK, Kalas V, Das KM, Mills JC. mAb Das-1 recognizes 3'-Sulfated Lewis A/C, which is aberrantly expressed during metaplastic and oncogenic transformation of several gastrointestinal Epithelia. PLoS One 2021; 16:e0261082. [PMID: 34910746 PMCID: PMC8673611 DOI: 10.1371/journal.pone.0261082] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/23/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Multiple previous studies have shown the monoclonal antibody Das-1 (formerly called 7E12H12) is specifically reactive towards metaplastic and carcinomatous lesions in multiple organs of the gastrointestinal system (e.g. Barrett's esophagus, intestinal-type metaplasia of the stomach, gastric adenocarcinoma, high-grade pancreatic intraepithelial neoplasm, and pancreatic ductal adenocarcinoma) as well as in other organs (bladder and lung carcinomas). Beyond being a useful biomarker in tissue, mAb Das-1 has recently proven to be more accurate than current paradigms for identifying cysts harboring advanced neoplasia. Though this antibody has been used extensively for clinical, basic science, and translational applications for decades, its epitope has remained elusive. METHODS In this study, we chemically deglycosylated a standard source of antigen, which resulted in near complete loss of the signal as measured by western blot analysis. The epitope recognized by mAb Das-1 was determined by affinity to a comprehensive glycan array and validated by inhibition of a direct ELISA. RESULTS The epitope recognized by mAb Das-1 is 3'-Sulfo-Lewis A/C (3'-Sulfo-LeA/C). 3'-Sulfo-LeA/C is broadly reexpressed across numerous GI epithelia and elsewhere during metaplastic and carcinomatous transformation. DISCUSSION 3'-Sulfo-LeA/C is a clinically important antigen that can be detected both intracellularly in tissue using immunohistochemistry and extracellularly in cyst fluid and serum by ELISA. The results open new avenues for tumorigenic risk stratification of various gastrointestinal lesions.
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Affiliation(s)
- Jeffrey W. Brown
- Division of Gastroenterology, Department of Medicine, Washington University in St. Louis, School of Medicine, St. Louis, Missouri, United States of America
| | - Koushik K. Das
- Division of Gastroenterology, Department of Medicine, Washington University in St. Louis, School of Medicine, St. Louis, Missouri, United States of America
| | - Vasilios Kalas
- Washington University in St. Louis, School of Medicine, St. Louis, Missouri, United States of America
- Physician Scientist Training Program, Department of Medicine, McGaw Medical Center of Northwestern University, Chicago, Illinois, United States of America
| | - Kiron M. Das
- Division of Gastroenterology, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, United States of America
| | - Jason C. Mills
- Division of Gastroenterology, Department of Medicine, Washington University in St. Louis, School of Medicine, St. Louis, Missouri, United States of America
- Department of Pathology and Immunology, Washington University in St. Louis, School of Medicine, St. Louis, Missouri, United States of America
- Department of Developmental Biology, Washington University in St. Louis, School of Medicine, St. Louis, Missouri, United States of America
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4
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Kalas V, Johnson-Sasso C, Morency EG, Ji P, Manesh R, Patel AA. Paraneoplastic Thrombocytopenia. Am J Med 2021; 134:976-979. [PMID: 33621535 DOI: 10.1016/j.amjmed.2021.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Vasilios Kalas
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL.
| | - Cecelia Johnson-Sasso
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Elizabeth G Morency
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Peng Ji
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Reza Manesh
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - Anand A Patel
- Department of Medicine, Section of Hematology-Oncology, The University of Chicago, Chicago, IL
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Maddirala AR, Klein R, Pinkner JS, Kalas V, Hultgren SJ, Janetka JW. Biphenyl Gal and GalNAc FmlH Lectin Antagonists of Uropathogenic E. coli (UPEC): Optimization through Iterative Rational Drug Design. J Med Chem 2019; 62:467-479. [PMID: 30540910 DOI: 10.1021/acs.jmedchem.8b01561] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The F9/Yde/Fml pilus, tipped with the FmlH adhesin, has been shown to provide uropathogenic Escherichia coli (UPEC) a fitness advantage in urinary tract infections (UTIs). Here, we used X-ray structure guided design to optimize our previously described ortho-biphenyl Gal and GalNAc FmlH antagonists such as compound 1 by replacing the carboxylate with a sulfonamide as in 50. Other groups which can accept H-bonds were also tolerated. We pursued further modifications to the biphenyl aglycone resulting in significantly improved activity. Two of the most potent compounds, 86 (IC50 = 0.051 μM) and 90 (IC50 = 0.034 μM), exhibited excellent metabolic stability in mouse plasma and liver microsomes but showed only limited oral bioavailability (<1%) in rats. Compound 84 also showed a good pharmacokinetic (PK) profile in mice after IP dosing with compound exposure above the IC50 for 6 h. These new FmlH antagonists represent new antivirulence drugs for UTIs.
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Affiliation(s)
- Amarendar Reddy Maddirala
- Department of Biochemistry and Molecular Biophysics , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
| | - Roger Klein
- Department of Molecular Microbiology , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
| | - Jerome S Pinkner
- Department of Molecular Microbiology , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
| | - Vasilios Kalas
- Department of Molecular Microbiology , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
| | - Scott J Hultgren
- Department of Molecular Microbiology , Washington University School of Medicine , St. Louis , Missouri 63110 , United States.,Center for Women's Infectious Disease Research, Department of Molecular Microbiology , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
| | - James W Janetka
- Department of Biochemistry and Molecular Biophysics , Washington University School of Medicine , St. Louis , Missouri 63110 , United States.,Center for Women's Infectious Disease Research, Department of Molecular Microbiology , Washington University School of Medicine , St. Louis , Missouri 63110 , United States
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6
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Kalas V, Pinkner JS, Hannan TJ, Hibbing ME, Dodson KW, Holehouse AS, Zhang H, Tolia NH, Gross ML, Pappu RV, Janetka J, Hultgren SJ. Evolutionary fine-tuning of conformational ensembles in FimH during host-pathogen interactions. Sci Adv 2017; 3:e1601944. [PMID: 28246638 PMCID: PMC5302871 DOI: 10.1126/sciadv.1601944] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 01/25/2017] [Indexed: 05/05/2023]
Abstract
Positive selection in the two-domain type 1 pilus adhesin FimH enhances Escherichia coli fitness in urinary tract infection (UTI). We report a comprehensive atomic-level view of FimH in two-state conformational ensembles in solution, composed of one low-affinity tense (T) and multiple high-affinity relaxed (R) conformations. Positively selected residues allosterically modulate the equilibrium between these two conformational states, each of which engages mannose through distinct binding orientations. A FimH variant that only adopts the R state is severely attenuated early in a mouse model of uncomplicated UTI but is proficient at colonizing catheterized bladders in vivo or bladder transitional-like epithelial cells in vitro. Thus, the bladder habitat has barrier(s) to R state-mediated colonization possibly conferred by the terminally differentiated bladder epithelium and/or decoy receptors in urine. Together, our studies reveal the conformational landscape in solution, binding mechanisms, and adhesive strength of an allosteric two-domain adhesin that evolved "moderate" affinity to optimize persistence in the bladder during UTI.
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Affiliation(s)
- Vasilios Kalas
- Center for Women’s Infectious Disease Research, Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Jerome S. Pinkner
- Center for Women’s Infectious Disease Research, Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Thomas J. Hannan
- Center for Women’s Infectious Disease Research, Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Michael E. Hibbing
- Center for Women’s Infectious Disease Research, Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Karen W. Dodson
- Center for Women’s Infectious Disease Research, Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Alex S. Holehouse
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Biomedical Engineering and Center for Biological Systems Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Hao Zhang
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Niraj H. Tolia
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Michael L. Gross
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Rohit V. Pappu
- Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Biomedical Engineering and Center for Biological Systems Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - James Janetka
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Scott J. Hultgren
- Center for Women’s Infectious Disease Research, Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO 63110, USA
- Corresponding author.
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7
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Mydock-McGrane L, Cusumano Z, Han Z, Binkley J, Kostakioti M, Hannan T, Pinkner JS, Klein R, Kalas V, Crowley J, Rath NP, Hultgren SJ, Janetka JW. Antivirulence C-Mannosides as Antibiotic-Sparing, Oral Therapeutics for Urinary Tract Infections. J Med Chem 2016; 59:9390-9408. [PMID: 27689912 PMCID: PMC5087331 DOI: 10.1021/acs.jmedchem.6b00948] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
![]()
Gram-negative
uropathogenic Escherichia coli (UPEC)
bacteria are a causative pathogen of urinary tract infections
(UTIs). Previously developed antivirulence inhibitors of the type
1 pilus adhesin, FimH, demonstrated oral activity in animal models
of UTI but were found to have limited compound exposure due to the
metabolic instability of the O-glycosidic bond (O-mannosides). Herein, we disclose that compounds having
the O-glycosidic bond replaced with carbon linkages
had improved stability and inhibitory activity against FimH. We report
on the design, synthesis, and in vivo evaluation of this promising
new class of carbon-linked C-mannosides that show
improved pharmacokinetic (PK) properties relative to O-mannosides. Interestingly, we found that FimH binding is stereospecifically
modulated by hydroxyl substitution on the methylene linker, where
the R-hydroxy isomer has a 60-fold increase in potency.
This new class of C-mannoside antagonists have significantly
increased compound exposure and, as a result, enhanced efficacy in
mouse models of acute and chronic UTI.
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Affiliation(s)
| | - Zachary Cusumano
- Fimbrion Therapeutics, Inc. , Saint Louis, Missouri 63108 United States
| | | | | | | | - Thomas Hannan
- Fimbrion Therapeutics, Inc. , Saint Louis, Missouri 63108 United States
| | | | | | | | | | - Nigam P Rath
- Department of Chemistry and Biochemistry, University of Missouri , Saint Louis, Missouri 63121 United States
| | - Scott J Hultgren
- Fimbrion Therapeutics, Inc. , Saint Louis, Missouri 63108 United States
| | - James W Janetka
- Fimbrion Therapeutics, Inc. , Saint Louis, Missouri 63108 United States
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8
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Conover MS, Ruer S, Taganna J, Kalas V, De Greve H, Pinkner JS, Dodson KW, Remaut H, Hultgren SJ. Inflammation-Induced Adhesin-Receptor Interaction Provides a Fitness Advantage to Uropathogenic E. coli during Chronic Infection. Cell Host Microbe 2016; 20:482-492. [PMID: 27667696 PMCID: PMC5294914 DOI: 10.1016/j.chom.2016.08.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 06/10/2016] [Accepted: 08/19/2016] [Indexed: 02/04/2023]
Abstract
Uropathogenic E. coli (UPEC) is the dominant cause of urinary tract infections, clinically described as cystitis. UPEC express CUP pili, which are extracellular fibers tipped with adhesins that bind mucosal surfaces of the urinary tract. Here we identify the role of the F9/Yde/Fml pilus for UPEC persistence in the inflamed urothelium. The Fml adhesin FmlH binds galactose β1-3 N-acetylgalactosamine found in core-1 and -2 O-glycans. Deletion of fmlH had no effect on UPEC virulence in an acute mouse model of cystitis. However, FmlH provided a fitness advantage during chronic cystitis, which is manifested as persistent bacteriuria, high bladder bacterial burdens, and chronic inflammation. In situ binding confirmed that FmlH bound avidly to the inflamed, but not the naive bladder. In accordance with its pathogenic profile, vaccination with FmlH significantly protected mice from chronic cystitis. Thus, UPEC employ separate CUP pili to adapt to the rapidly changing niche during bladder infection.
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Affiliation(s)
- Matt S Conover
- Department of Molecular Microbiology and Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Ségolène Ruer
- Structural and Molecular Microbiology, Structural Biology Research Center, VIB, Pleinlaan 2, 1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Joemar Taganna
- Structural and Molecular Microbiology, Structural Biology Research Center, VIB, Pleinlaan 2, 1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Vasilios Kalas
- Department of Molecular Microbiology and Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Henri De Greve
- Structural and Molecular Microbiology, Structural Biology Research Center, VIB, Pleinlaan 2, 1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Jerome S Pinkner
- Department of Molecular Microbiology and Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Karen W Dodson
- Department of Molecular Microbiology and Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Han Remaut
- Structural and Molecular Microbiology, Structural Biology Research Center, VIB, Pleinlaan 2, 1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
| | - Scott J Hultgren
- Department of Molecular Microbiology and Center for Women's Infectious Disease Research, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Jarvis C, Han Z, Kalas V, Klein R, Pinkner JS, Ford B, Binkley J, Cusumano CK, Cusumano Z, Mydock-McGrane L, Hultgren SJ, Janetka JW. Cover Picture: Antivirulence Isoquinolone Mannosides: Optimization of the Biaryl Aglycone for FimH Lectin Binding Affinity and Efficacy in the Treatment of Chronic UTI (ChemMedChem 4/2016). ChemMedChem 2016. [DOI: 10.1002/cmdc.201600045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Cassie Jarvis
- Washington University School of Medicine; Department of Biochemistry and Molecular Biophysics; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Zhenfu Han
- Washington University School of Medicine; Department of Biochemistry and Molecular Biophysics; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Vasilios Kalas
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Roger Klein
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Jerome S. Pinkner
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Bradley Ford
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Jana Binkley
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Corinne K. Cusumano
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - Zachary Cusumano
- Fimbrion Therapeutics Inc.; 4041 Forest Park Ave. St. Louis MO 63108 USA
| | | | - Scott J. Hultgren
- Washington University School of Medicine; Department of Molecular Microbiology; 660 S. Euclid Ave. St. Louis MO 63110 USA
- Washington University School of Medicine; Center for Women's Infectious Disease Research (cWIDR); 660 S. Euclid Ave. St. Louis MO 63110 USA
| | - James W. Janetka
- Washington University School of Medicine; Department of Biochemistry and Molecular Biophysics; 660 S. Euclid Ave. St. Louis MO 63110 USA
- Washington University School of Medicine; Center for Women's Infectious Disease Research (cWIDR); 660 S. Euclid Ave. St. Louis MO 63110 USA
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10
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Jarvis C, Han Z, Kalas V, Klein R, Pinkner JS, Ford B, Binkley J, Cusumano CK, Cusumano Z, Mydock-McGrane L, Hultgren SJ, Janetka JW. Antivirulence Isoquinolone Mannosides: Optimization of the Biaryl Aglycone for FimH Lectin Binding Affinity and Efficacy in the Treatment of Chronic UTI. ChemMedChem 2016; 11:367-73. [PMID: 26812660 DOI: 10.1002/cmdc.201600006] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Indexed: 12/26/2022]
Abstract
Uropathogenic E. coli (UPEC) employ the mannose-binding adhesin FimH to colonize the bladder epithelium during urinary tract infection (UTI). Previously reported FimH antagonists exhibit good potency and efficacy, but low bioavailability and a short half-life in vivo. In a rational design strategy, we obtained an X-ray structure of lead mannosides and then designed mannosides with improved drug-like properties. We show that cyclizing the carboxamide onto the biphenyl B-ring aglycone of biphenyl mannosides into a fused heterocyclic ring, generates new biaryl mannosides such as isoquinolone 22 (2-methyl-4-(1-oxo-1,2-dihydroisoquinolin-7-yl)phenyl α-d-mannopyranoside) with enhanced potency and in vivo efficacy resulting from increased oral bioavailability. N-Substitution of the isoquinolone aglycone with various functionalities produced a new potent subseries of FimH antagonists. All analogues of the subseries have higher FimH binding affinity than unsubstituted lead 22, as determined by thermal shift differential scanning fluorimetry assay. Mannosides with pyridyl substitution on the isoquinolone group inhibit bacteria-mediated hemagglutination and prevent biofilm formation by UPEC with single-digit nanomolar potency, which is unprecedented for any FimH antagonists or any other antivirulence compounds reported to date.
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Affiliation(s)
- Cassie Jarvis
- Washington University School of Medicine, Department of Biochemistry and Molecular Biophysics, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Zhenfu Han
- Washington University School of Medicine, Department of Biochemistry and Molecular Biophysics, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Vasilios Kalas
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Roger Klein
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Jerome S Pinkner
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Bradley Ford
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Jana Binkley
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Corinne K Cusumano
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA
| | - Zachary Cusumano
- Fimbrion Therapeutics Inc., 4041 Forest Park Ave., St. Louis, MO, 63108, USA
| | | | - Scott J Hultgren
- Washington University School of Medicine, Department of Molecular Microbiology, 660 S. Euclid Ave., St. Louis, MO, 63110, USA. .,Washington University School of Medicine, Center for Women's Infectious Disease Research (cWIDR), 660 S. Euclid Ave., St. Louis, MO, 63110, USA.
| | - James W Janetka
- Washington University School of Medicine, Department of Biochemistry and Molecular Biophysics, 660 S. Euclid Ave., St. Louis, MO, 63110, USA. .,Washington University School of Medicine, Center for Women's Infectious Disease Research (cWIDR), 660 S. Euclid Ave., St. Louis, MO, 63110, USA.
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Ralat LA, Kalas V, Zheng Z, Goldman RD, Sosnick TR, Tang WJ. Ubiquitin is a novel substrate for human insulin-degrading enzyme. J Mol Biol 2010; 406:454-66. [PMID: 21185309 DOI: 10.1016/j.jmb.2010.12.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 12/16/2010] [Accepted: 12/17/2010] [Indexed: 01/22/2023]
Abstract
Insulin-degrading enzyme (IDE) can degrade insulin and amyloid-β, peptides involved in diabetes and Alzheimer's disease, respectively. IDE selects its substrates based on size, charge, and flexibility. From these criteria, we predict that IDE can cleave and inactivate ubiquitin (Ub). Here, we show that IDE cleaves Ub in a biphasic manner, first, by rapidly removing the two C-terminal glycines (k(cat)=2 s(-1)) followed by a slow cleavage between residues 72 and 73 (k(cat)=0.07 s(-1)), thereby producing the inactive 1-74 fragment of Ub (Ub1-74) and 1-72 fragment of Ub (Ub1-72). IDE is a ubiquitously expressed cytosolic protein, where monomeric Ub is also present. Thus, Ub degradation by IDE should be regulated. IDE is known to bind the cytoplasmic intermediate filament protein nestin with high affinity. We found that nestin potently inhibits the cleavage of Ub by IDE. In addition, Ub1-72 has a markedly increased affinity for IDE (∼90-fold). Thus, the association of IDE with cellular regulators and product inhibition by Ub1-72 can prevent inadvertent proteolysis of cellular Ub by IDE. Ub is a highly stable protein. However, IDE instead prefers to degrade peptides with high intrinsic flexibility. Indeed, we demonstrate that IDE is exquisitely sensitive to Ub stability. Mutations that only mildly destabilize Ub (ΔΔG<0.6 kcal/mol) render IDE hypersensitive to Ub with rate enhancements greater than 12-fold. The Ub-bound IDE structure and IDE mutants reveal that the interaction of the exosite with the N-terminus of Ub guides the unfolding of Ub, allowing its sequential cleavages. Together, our studies link the control of Ub clearance with IDE.
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Affiliation(s)
- Luis A Ralat
- Ben May Department for Cancer Research, The University of Chicago, 929 East 57th Street, Chicago, IL 60637, USA
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Kalas V, Ralat LA, Zheng Z, Sosnick TR, Tang W. Size and Stability are Critical Elements in the Substrate Selectivity of Insulin‐Degrading Enzyme. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.463.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Tobin R Sosnick
- Department of Biochemistry and Molecular Biology
- Institute for Biophysical DynamicsThe University of ChicagoChicagoIL
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Kalas V. [Faceted inlay in fractured vital teeth]. Cesk Stomatol 1974; 74:51-5. [PMID: 4528207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Kalas V. [Metastasis of pancreas carcinoma into the oral cavity]. Cesk Stomatol 1967; 67:193-7. [PMID: 5229728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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