1
|
Uthaman S, Parvinroo S, Mathew AP, Jia X, Hernandez B, Proctor A, Sajeevan KA, Nenninger A, Long MJ, Park IK, Chowdhury R, Phillips GJ, Wannemuehler MJ, Bardhan R. Inhibiting the cGAS-STING Pathway in Ulcerative Colitis with Programmable Micelles. ACS Nano 2024. [PMID: 38648373 DOI: 10.1021/acsnano.3c11257] [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] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Ulcerative colitis is a chronic condition in which a dysregulated immune response contributes to the acute intestinal inflammation of the colon. Current clinical therapies often exhibit limited efficacy and undesirable side effects. Here, programmable nanomicelles were designed for colitis treatment and loaded with RU.521, an inhibitor of the cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway. STING-inhibiting micelles (SIMs) comprise hyaluronic acid-stearic acid conjugates and include a reactive oxygen species (ROS)-responsive thioketal linker. SIMs were designed to selectively accumulate at the site of inflammation and trigger drug release in the presence of ROS. Our in vitro studies in macrophages and in vivo studies in a murine model of colitis demonstrated that SIMs leverage HA-CD44 binding to target sites of inflammation. Oral delivery of SIMs to mice in both preventive and delayed therapeutic models ameliorated colitis's severity by reducing STING expression, suppressing the secretion of proinflammatory cytokines, enabling bodyweight recovery, protecting mice from colon shortening, and restoring colonic epithelium. In vivo end points combined with metabolomics identified key metabolites with a therapeutic role in reducing intestinal and mucosal inflammation. Our findings highlight the significance of programmable delivery platforms that downregulate inflammatory pathways at the intestinal mucosa for managing inflammatory bowel diseases.
Collapse
Affiliation(s)
- Saji Uthaman
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
| | - Shadi Parvinroo
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Ansuja Pulickal Mathew
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
| | - Xinglin Jia
- Department of Mathematics, Iowa State University, Ames, Iowa 50011, United States
| | - Belen Hernandez
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Alexandra Proctor
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Karuna Anna Sajeevan
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
| | - Ariel Nenninger
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Mary-Jane Long
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
| | - In-Kyu Park
- Department of Biomedical Sciences and BioMedical Sciences Graduate Program (BMSGP), Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - Ratul Chowdhury
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
| | - Gregory J Phillips
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Michael J Wannemuehler
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, Iowa 50011, United States
| | - Rizia Bardhan
- Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States
- Nanovaccine Institute, Iowa State University, Ames, Iowa 50012, United States
| |
Collapse
|
2
|
Nenninger A, Ben-Shlomo G, Allbaugh R, Valentine B, Snella E, Jens J, Ellinwood NM, Smith J. Clinical and pathological characterization of ophthalmic disease in a canine model of mucopolysaccharidosis type I. J Inherit Metab Dis 2023; 46:348-357. [PMID: 36601751 DOI: 10.1002/jimd.12587] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/29/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
Mucopolysaccharidosis type I (MPS I) is a rare lysosomal storage disease caused by α-L-iduronidase enzyme deficiency, resulting in glycosaminoglycan (GAG) accumulation in various cell types, including ocular tissues. Ocular manifestations in humans are common with significant pathological changes including corneal opacification, retinopathy, optic nerve swelling and atrophy, and glaucoma. Available treatments for MPS I are suboptimal and there is limited to no effect in treating the ocular disease. The goal of this study was to characterize the clinical and pathological features of ocular disease in a line of MPS I affected dogs, including changes not previously reported. A total of 22 dogs were studied; 12 MPS I were affected and 10 were unaffected. A subset of each underwent complete ophthalmic examination including slit lamp biomicroscopy, indirect ophthalmoscopy, rebound tonometry, and ultrasonic pachymetry. Globes were evaluated microscopically for morphological changes and GAG accumulation. Clinical corneal abnormalities in affected dogs included edema, neovascularization, fibrosis, and marked stromal thickening. Intraocular pressures were within reference interval for affected and unaffected dogs. Microscopically, vacuolated cells containing alcian blue positive inclusions were detected within the corneal stroma, iris, ciliary body, sclera, and optic nerve meninges of affected dogs. Ganglioside accumulation was identified by luxol fast blue staining in rare retinal ganglion cells. Increased lysosomal integral membrane protein-2 expression was demonstrated within the retina of affected animals when compared to unaffected controls. Results of this study further characterize ocular pathology in the canine model of MPS I and provide foundational data for future therapeutic efficacy studies.
Collapse
Affiliation(s)
- Ariel Nenninger
- Department of Veterinary Pathology, Iowa State University, Ames, Iowa, USA
| | - Gil Ben-Shlomo
- Department of Veterinary Clinical Sciences, Iowa State University, Ames, Iowa, USA
| | - Rachel Allbaugh
- Department of Veterinary Clinical Sciences, Iowa State University, Ames, Iowa, USA
| | - Bethann Valentine
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | - Elizabeth Snella
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | - Jackie Jens
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | | | - Jodi Smith
- Department of Veterinary Pathology, Iowa State University, Ames, Iowa, USA
| |
Collapse
|
3
|
Hsu H, Chen C, Nenninger A, Holz L, Baldwin CL, Telfer JC. WC1 is a hybrid γδ TCR coreceptor and pattern recognition receptor for pathogenic bacteria. J Immunol 2015; 194:2280-8. [PMID: 25632007 DOI: 10.4049/jimmunol.1402021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
WC1 proteins are uniquely expressed on γδ T cells and belong to the scavenger receptor cysteine-rich (SRCR) superfamily. While present in variable, and sometimes high, numbers in the genomes of mammals and birds, in cattle there are 13 distinct genes (WC1-1 to WC1-13). All bovine WC1 proteins can serve as coreceptors for the TCR in a tyrosine phosphorylation dependent manner, and some are required for the γδ T cell response to Leptospira. We hypothesized that individual WC1 receptors encode Ag specificity via coligation of bacteria with the γδ TCR. SRCR domain binding was directly correlated with γδ T cell response, as WC1-3 SRCR domains from Leptospira-responsive cells, but not WC1-4 SRCR domains from Leptospira-nonresponsive cells, bound to multiple serovars of two Leptospira species, L. borgpetersenii, and L. interrogans. Three to five of eleven WC1-3 SRCR domains, but none of the eleven WC1-4 SRCR domains, interacted with Leptospira spp. and Borrelia burgdorferi, but not with Escherichia coli or Staphylococcus aureus. Mutational analysis indicated that the active site for bacterial binding in one of the SRCR domains is composed of amino acids in three discontinuous regions. Recombinant WC1 SRCR domains with the ability to bind leptospires inhibited Leptospira growth. Our data suggest that WC1 gene arrays play a multifaceted role in the γδ T cell response to bacteria, including acting as hybrid pattern recognition receptors and TCR coreceptors, and they may function as antimicrobials.
Collapse
Affiliation(s)
- Haoting Hsu
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003; and Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA 01003
| | - Chuang Chen
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003; and Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA 01003
| | - Ariel Nenninger
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003; and
| | - Lauren Holz
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003; and
| | - Cynthia L Baldwin
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003; and Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA 01003
| | - Janice C Telfer
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA 01003; and Program in Molecular and Cellular Biology, University of Massachusetts, Amherst, MA 01003
| |
Collapse
|
4
|
Duarte DS, Dolabela MF, Salas CE, Raslan DS, Oliveiras AB, Nenninger A, Wiedemann B, Wagner H, Lombardi J, Lopes MT. Chemical characterization and biological activity of Macfadyena unguis-cati (Bignoniaceae). J Pharm Pharmacol 2000; 52:347-52. [PMID: 10757425 DOI: 10.1211/0022357001773904] [Citation(s) in RCA: 27] [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: 10/31/2022]
Abstract
Macfadyena unguis-cati (L.) has been widely used in folk medicine as an anti-inflammatory, antimalarial and antivenereal. The purpose of this study was to chemically characterize the main plant components, and to evaluate the biological properties of some of the fractions derived from leaves (MACb) and liana (MACa) of this plant. Chemical characterization allowed the identification of the compounds corymboside, vicenin-2, quercitrin, chlorogenic acid, isochlorogenic acid, lupeol, beta-sitosterol, beta-sitosterylglucoside, allantoin and lapachol. The biological screening of fractions and/or purified substances derived from fractions revealed antitumoral and antitrypanosomal activities in fractions MACa/lapachol and MACb/MACb21, respectively. The anti-lipoxygenase and anti-cyclooxygenase effect seen in fractions MACa and MACb showed a partial correlation with the anti-inflammatory property attributed to this plant.
Collapse
Affiliation(s)
- D S Duarte
- Departamento de Física/Química, CECET, UNIVALE, Brasil
| | | | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Kraus CM, Neszmélyi A, Holly S, Wiedemann B, Nenninger A, Torssell KB, Bohlin L, Wagner H. New acetylenes isolated from the bark of Heisteria acuminata. J Nat Prod 1998; 61:422-427. [PMID: 9584394 DOI: 10.1021/np970357p] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Five new linear acetylenic compounds, namely, pentadeca-6,8,10-triynoic acid (1), octadeca-8,10,12-triynoic acid (2), trans-pentadec-10-en-6,8-diynoic acid (3), cis-hexadec-11-en-7,9-diynoic acid (4), and cis-octadec-12-en-7,9-diynoic acid (5), were isolated from the bark of Heisteria acuminata by bioassay-guided fractionation, using cyclooxygenase (COX) and 5-lipoxygenase (5-LO) assays as models for antiinflammatory activity. The structures of compounds 1-5 were established by NMR, MS, IR, and Raman spectroscopy. These isolated compounds were found to be potent inhibitors of COX. Compounds 4 and 5 were the most potent inhibitors of 5-LO, whereas the other compounds only showed a weak inhibition at the same concentration.
Collapse
Affiliation(s)
- C M Kraus
- Institute of Pharmaceutical Biology, University of Munich, Germany
| | | | | | | | | | | | | | | |
Collapse
|