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Lu G, Rausell-Palamos F, Zhang J, Zheng Z, Zhang T, Valle S, Rosselot C, Berrouet C, Conde P, Spindler MP, Graham JG, Homann D, Garcia-Ocaña A. Dextran Sulfate Protects Pancreatic β-Cells, Reduces Autoimmunity, and Ameliorates Type 1 Diabetes. Diabetes 2020; 69:1692-1707. [PMID: 32381645 PMCID: PMC7372066 DOI: 10.2337/db19-0725] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 05/03/2020] [Indexed: 12/14/2022]
Abstract
A failure in self-tolerance leads to autoimmune destruction of pancreatic β-cells and type 1 diabetes (T1D). Low-molecular-weight dextran sulfate (DS) is a sulfated semisynthetic polysaccharide with demonstrated cytoprotective and immunomodulatory properties in vitro. However, whether DS can protect pancreatic β-cells, reduce autoimmunity, and ameliorate T1D is unknown. In this study, we report that DS, but not dextran, protects human β-cells against cytokine-mediated cytotoxicity in vitro. DS also protects mitochondrial function and glucose-stimulated insulin secretion and reduces chemokine expression in human islets in a proinflammatory environment. Interestingly, daily treatment with DS significantly reduces diabetes incidence in prediabetic NOD mice and, most importantly, reverses diabetes in early-onset diabetic NOD mice. DS decreases β-cell death, enhances islet heparan sulfate (HS)/HS proteoglycan expression, and preserves β-cell mass and plasma insulin in these mice. DS administration also increases the expression of the inhibitory costimulatory molecule programmed death-1 (PD-1) in T cells, reduces interferon-γ+CD4+ and CD8+ T cells, and enhances the number of FoxP3+ cells. Collectively, these studies demonstrate that the action of one single molecule, DS, on β-cell protection, extracellular matrix preservation, and immunomodulation can reverse diabetes in NOD mice, highlighting its therapeutic potential for the treatment of T1D.
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Affiliation(s)
- Geming Lu
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Francisco Rausell-Palamos
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jiamin Zhang
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
- Institute of Blood Transfusion, Shanghai Blood Center, Shanghai, China
| | - Zihan Zheng
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Tuo Zhang
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, NY
| | - Shelley Valle
- School of Life Sciences, Arizona State University, Tempe, AZ
| | - Carolina Rosselot
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Cecilia Berrouet
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Matthew P Spindler
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - John G Graham
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Dirk Homann
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Adolfo Garcia-Ocaña
- Division of Endocrinology, Diabetes and Bone Disease, Diabetes, Obesity, and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
- The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY
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2
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Kumar K, Wang P, Wilson J, Zlatanic V, Berrouet C, Khamrui S, Secor C, Swartz EA, Lazarus MB, Sanchez R, Stewart AF, Garcia-Ocana A, DeVita RJ. Synthesis and Biological Validation of a Harmine-Based, Central Nervous System (CNS)-Avoidant, Selective, Human β-Cell Regenerative Dual-Specificity Tyrosine Phosphorylation-Regulated Kinase A (DYRK1A) Inhibitor. J Med Chem 2020; 63:2986-3003. [PMID: 32003560 PMCID: PMC7388697 DOI: 10.1021/acs.jmedchem.9b01379] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recently, our group identified that harmine is able to induce β-cell proliferation both in vitro and in vivo, mediated via the DYRK1A-NFAT pathway. Since, harmine suffers from a lack of selectivity, both against other kinases and CNS off-targets, we therefore sought to expand structure-activity relationships for harmine's DYRK1A activity, to enhance selectivity for off-targets while retaining human β-cell proliferation activity. We carried out optimization of the 9-N-position of harmine to synthesize 29 harmine-based analogs. Several novel inhibitors showed excellent DYRK1A inhibition and human β-cell proliferation capability. An optimized DYRK1A inhibitor, 2-2c, was identified as a novel, efficacious in vivo lead candidate. 2-2c also demonstrates improved selectivity for kinases and CNS off-targets, as well as in vivo efficacy for β-cell proliferation and regeneration at lower doses than harmine. Collectively, these findings demonstrate that 2-2c is a much improved in vivo lead candidate as compared to harmine for the treatment of diabetes.
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Affiliation(s)
- Kunal Kumar
- Drug Discovery Institute, Icahn School of Medicine at Mount
Sinai, New York, NY 10029, USA
- Department of Pharmacological Sciences, Icahn School of
Medicine at Mount Sinai, New York, NY 10029, USA
| | - Peng Wang
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jessica Wilson
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Viktor Zlatanic
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Cecilia Berrouet
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Susmita Khamrui
- Department of Pharmacological Sciences, Icahn School of
Medicine at Mount Sinai, New York, NY 10029, USA
| | - Cody Secor
- Department of Pharmacological Sciences, Icahn School of
Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ethan A. Swartz
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Michael B. Lazarus
- Drug Discovery Institute, Icahn School of Medicine at Mount
Sinai, New York, NY 10029, USA
- Department of Pharmacological Sciences, Icahn School of
Medicine at Mount Sinai, New York, NY 10029, USA
| | - Roberto Sanchez
- Drug Discovery Institute, Icahn School of Medicine at Mount
Sinai, New York, NY 10029, USA
- Department of Pharmacological Sciences, Icahn School of
Medicine at Mount Sinai, New York, NY 10029, USA
| | - Andrew F. Stewart
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adolfo Garcia-Ocana
- Diabetes, Obesity, and Metabolism Institute, Icahn School
of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Robert J. DeVita
- Drug Discovery Institute, Icahn School of Medicine at Mount
Sinai, New York, NY 10029, USA
- Department of Pharmacological Sciences, Icahn School of
Medicine at Mount Sinai, New York, NY 10029, USA
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3
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Ackeifi C, Wang P, Karakose E, Manning Fox JE, González BJ, Liu H, Wilson J, Swartz E, Berrouet C, Li Y, Kumar K, MacDonald PE, Sanchez R, Thorens B, DeVita R, Homann D, Egli D, Scott DK, Garcia-Ocaña A, Stewart AF. GLP-1 receptor agonists synergize with DYRK1A inhibitors to potentiate functional human β cell regeneration. Sci Transl Med 2020; 12:eaaw9996. [PMID: 32051230 PMCID: PMC9945936 DOI: 10.1126/scitranslmed.aaw9996] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [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: 02/15/2019] [Revised: 08/07/2019] [Accepted: 01/09/2020] [Indexed: 01/25/2023]
Abstract
Glucagon-like peptide-1 receptor (GLP1R) agonists and dipeptidyl peptidase 4 inhibitors are widely prescribed diabetes drugs due to their ability to stimulate insulin secretion from remaining β cells and to reduce caloric intake. Unfortunately, they fail to increase human β cell proliferation. Small-molecule inhibitors of dual-specificity tyrosine-regulated kinase 1A (DYRK1A) are able to induce adult human β cell proliferation, but rates are modest (~2%), and their specificity to β cells is limited. Here, we provide evidence that combining any member of the GLP1R agonist class with any member of the DYRK1A inhibitor class induces a synergistic increase in human β cell replication (5 to 6%) accompanied by an actual increase in numbers of human β cells. GLP1R agonist-DYRK1A inhibitor synergy required combined inhibition of DYRK1A and an increase in cAMP and did not lead to β cell dedifferentiation. These beneficial effects on proliferation were seen in both normal human β cells and β cells derived from individuals with type 2 diabetes. The ability of the GLP1R agonist-DYRK1A inhibitor combination to enhance human β cell proliferation, human insulin secretion, and blood glucose control extended in vivo to studies of human islets transplanted into euglycemic and streptozotocin-diabetic immunodeficient mice. No adverse events were observed in the mouse studies during a 1-week period. Because of the relative β cell specificity of GLP1R agonists, the combination provides an improved, although not complete, degree of human β cell specificity.
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Affiliation(s)
- Courtney Ackeifi
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Peng Wang
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Esra Karakose
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jocelyn E Manning Fox
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - Bryan J González
- Naomi Berrie Diabetes Center and Columbia Stem Cell Center, Columbia University, New York, NY 10032, USA
| | - Hongtao Liu
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jessica Wilson
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ethan Swartz
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Cecilia Berrouet
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Yansui Li
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Kunal Kumar
- Department of Pharmacological Sciences, and Drug Discovery Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Patrick E MacDonald
- Department of Pharmacology and Alberta Diabetes Institute, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - Roberto Sanchez
- Department of Pharmacological Sciences, and Drug Discovery Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Bernard Thorens
- Center for Integrative Genomics, University of Lausanne, Lausanne 1015, Switzerland
| | - Robert DeVita
- Department of Pharmacological Sciences, and Drug Discovery Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Dirk Homann
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Dieter Egli
- Naomi Berrie Diabetes Center and Columbia Stem Cell Center, Columbia University, New York, NY 10032, USA
| | - Donald K Scott
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Adolfo Garcia-Ocaña
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Andrew F Stewart
- Diabetes, Obesity and Metabolism Institute and Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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Burtin D, Chabre H, Olagnier B, Didierlaurent A, Couret MN, Comeau D, Wambre E, Laparra H, Van Overtvelt L, Montandon F, Batard T, Jonval V, Lorphelin A, Merle C, Berrouet C, Parry L, Gomord V, Van Ree R, Moingeon P. Production of native and modified recombinant Der p 1 molecules in tobacco plants. Clin Exp Allergy 2009; 39:760-70. [PMID: 19226276 DOI: 10.1111/j.1365-2222.2009.03201.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND As a complex molecule requiring post-translational processing, it has been difficult to produce the Der p 1 major allergen from the Dermatophagoides pteronyssinus house dust mite in a recombinant form. OBJECTIVE Here, we tested whether transgenic tobacco plants are suitable to express Der p 1, either as a wild-type molecule or as variants lacking N-glycosylation sites (Gly(-)) and/or cysteine protease activity (Enz(-)). Methods Using Agrobacterium tumefaciens-based transformation, pro Der p 1 molecules bearing mutations within either the N-glycosylation sites (N34Q, N150Q) and/or the cysteine protease-active site (C132V) were expressed in tobacco plants. After purification by ion exchange chromatography, allergens were characterized using immunoblotting, circular dichroism (CD), as well as basophil and T lymphocyte stimulation assays. RESULTS Four forms of recombinant Der p 1 (i.e. wild-type Gly(+)/Enz(+), as well as Gly(-)/Enz(+), Gly(+)/Enz(-) or Gly(-)/Enz(-) variants) were successfully expressed in tobacco leaves as pro Der p 1 molecules. Spontaneous cleavage of the pro-peptide was observed in tobacco leaf extracts for all forms of recombinant Der p 1 (r Der p 1). CD confirmed that all r Der p 1 molecules, with the exception of the Gly(-)/Enz(-) variant, exhibited secondary structures comparable to the natural protein. A cysteine protease activity was associated only with the Gly(+)/Enz(+) form. All these molecules exhibit a profile similar to natural Der p 1 with respect to IgE immunoreactivity, basophil activation and T cell recognition. CONCLUSION A tobacco plant expression system allows the production of various forms of mature Der p 1, which could be used for diagnostic or immunotherapeutic purposes.
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Affiliation(s)
- D Burtin
- Meristem Therapeutics, Clermont-Ferrand, France
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5
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Batard T, Bukovec F, Berrouet C, Destombes V, Didierlaurent A, André C. Demonstration of a partially cryptic epitope of the major cat allergen Fel d 1: consequences for mAb-based standardization of cat extracts. J Allergy Clin Immunol 2000; 106:669-76. [PMID: 11031337 DOI: 10.1067/mai.2000.110227] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Antiallergen mAbs that do not recognize clinically important isoforms have been described, raising the question of the selection of mAbs for quantifying major allergens in order to standardize allergenic extracts. This question is even more critical if mAbs can discriminate between different forms of allergen molecules with the same amino acid sequence. OBJECTIVE We sought to demonstrate that an anti-Fel d 1 mAb was able to discriminate between two forms of the major cat allergen independently of its amino acid sequence and to determine the relative importance and stability of both forms in various cat extracts. METHODS Anti-Fel d 1 mAbs were raised in mice and characterized. By using two of these mAbs, a two-site ELISA was developed to quantify Fel d 1 in mass units. RESULTS One of the anti-Fel d 1 mAbs developed was shown to specifically recognize a particular form of Fel d 1. A two-site ELISA with this mAb to capture Fel d 1 was able to quantify the allergen specifically in this form. It was then shown that (1) the quantitative importance of this form of Fel d 1 could vary from one cat extract to another, (2) Fel d 1 was converted into this form under certain conditions, and (3) both converted and unconverted forms of Fel d 1 may bear IgE epitopes that are specific. CONCLUSION Although the present study emphasizes the issue of selecting mAbs that are not too specific to standardize allergenic extracts, it also demonstrates that very specific mAbs can be of interest, especially to verify the stability of allergens in extracts, since this stability might have clinical implications.
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Affiliation(s)
- T Batard
- Stallergènes S.A., Antony, France
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