1
|
Pavelec CM, Young AP, Luviano HL, Orrell EE, Szagdaj A, Poudel N, Wolpe AG, Thomas SH, Yeudall S, Upchurch CM, Okusa MD, Isakson BE, Wolf MJ, Leitinger N. Pannexin 1 Channels Control Cardiomyocyte Metabolism and Neutrophil Recruitment During Non-Ischemic Heart Failure. bioRxiv 2024:2023.12.29.573679. [PMID: 38234768 PMCID: PMC10793433 DOI: 10.1101/2023.12.29.573679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Pannexin 1 (PANX1), a ubiquitously expressed ATP release membrane channel, has been shown to play a role in inflammation, blood pressure regulation, and myocardial infarction. However, a possible role of PANX1 in cardiomyocytes in the progression of heart failure has not yet been investigated. We generated a novel mouse line with constitutive deletion of PANX1 in cardiomyocytes (Panx1 MyHC6 ). PANX1 deletion in cardiomyocytes had no effect on unstressed heart function but increased the glycolytic metabolism both in vivo and in vitro . In vitro , treatment of H9c2 cardiomyocytes with isoproterenol led to PANX1-dependent release of ATP and Yo-Pro-1 uptake, as assessed by pharmacological blockade with spironolactone and siRNA-mediated knock-down of PANX1. To investigate non-ischemic heart failure and the preceding cardiac hypertrophy we administered isoproterenol, and we demonstrate that Panx1 MyHC6 mice were protected from systolic and diastolic left ventricle volume increases and cardiomyocyte hypertrophy. Moreover, we found that Panx1 MyHC6 mice showed decreased isoproterenol-induced recruitment of immune cells (CD45 + ), particularly neutrophils (CD11b + , Ly6g + ), to the myocardium. Together these data demonstrate that PANX1 deficiency in cardiomyocytes impacts glycolytic metabolism and protects against cardiac hypertrophy in non-ischemic heart failure at least in part by reducing immune cell recruitment. Our study implies PANX1 channel inhibition as a therapeutic approach to ameliorate cardiac dysfunction in heart failure patients.
Collapse
|
2
|
Yeudall S, Upchurch CM, Leitinger N. The clinical relevance of heme detoxification by the macrophage heme oxygenase system. Front Immunol 2024; 15:1379967. [PMID: 38585264 PMCID: PMC10995405 DOI: 10.3389/fimmu.2024.1379967] [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: 01/31/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Heme degradation by the heme oxygenase (HMOX) family of enzymes is critical for maintaining homeostasis and limiting heme-induced tissue damage. Macrophages express HMOX1 and 2 and are critical sites of heme degradation in healthy and diseased states. Here we review the functions of the macrophage heme oxygenase system and its clinical relevance in discrete groups of pathologies where heme has been demonstrated to play a driving role. HMOX1 function in macrophages is essential for limiting oxidative tissue damage in both acute and chronic hemolytic disorders. By degrading pro-inflammatory heme and releasing anti-inflammatory molecules such as carbon monoxide, HMOX1 fine-tunes the acute inflammatory response with consequences for disorders of hyperinflammation such as sepsis. We then discuss divergent beneficial and pathological roles for HMOX1 in disorders such as atherosclerosis and metabolic syndrome, where activation of the HMOX system sits at the crossroads of chronic low-grade inflammation and oxidative stress. Finally, we highlight the emerging role for HMOX1 in regulating macrophage cell death via the iron- and oxidation-dependent form of cell death, ferroptosis. In summary, the importance of heme clearance by macrophages is an active area of investigation with relevance for therapeutic intervention in a diverse array of human diseases.
Collapse
Affiliation(s)
- Scott Yeudall
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, United States
- Medical Scientist Training Program, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Clint M. Upchurch
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Norbert Leitinger
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, United States
- Robert M Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| |
Collapse
|
3
|
Yeudall S, Upchurch CM, Seegren PV, Pavelec CM, Greulich J, Lemke MC, Harris TE, Desai BN, Hoehn KL, Leitinger N. Macrophage acetyl-CoA carboxylase regulates acute inflammation through control of glucose and lipid metabolism. Sci Adv 2022; 8:eabq1984. [PMID: 36417534 PMCID: PMC9683712 DOI: 10.1126/sciadv.abq1984] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 10/27/2022] [Indexed: 05/27/2023]
Abstract
Acetyl-CoA carboxylase (ACC) regulates lipid synthesis; however, its role in inflammatory regulation in macrophages remains unclear. We generated mice that are deficient in both ACC isoforms in myeloid cells. ACC deficiency altered the lipidomic, transcriptomic, and bioenergetic profile of bone marrow-derived macrophages, resulting in a blunted response to proinflammatory stimulation. In response to lipopolysaccharide (LPS), ACC is required for the early metabolic switch to glycolysis and remodeling of the macrophage lipidome. ACC deficiency also resulted in impaired macrophage innate immune functions, including bacterial clearance. Myeloid-specific deletion or pharmacological inhibition of ACC in mice attenuated LPS-induced expression of proinflammatory cytokines interleukin-6 (IL-6) and IL-1β, while pharmacological inhibition of ACC increased susceptibility to bacterial peritonitis in wild-type mice. Together, we identify a critical role for ACC in metabolic regulation of the innate immune response in macrophages, and thus a clinically relevant, unexpected consequence of pharmacological ACC inhibition.
Collapse
Affiliation(s)
- Scott Yeudall
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Clint M. Upchurch
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Philip V. Seegren
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Caitlin M. Pavelec
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Jan Greulich
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Michael C. Lemke
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Thurl E. Harris
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Bimal N. Desai
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Kyle L. Hoehn
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Norbert Leitinger
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| |
Collapse
|
4
|
Pavelec CM, Wolf MJ, Yeudall S, Upchurch C, Leitinger N. Abstract P2028: A Role For Pannexin 1 In Heart Failure Induced By Acute And Chronic Isoproterenol Administration. Circ Res 2022. [DOI: 10.1161/res.131.suppl_1.p2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pannexin 1 (Panx1), a ubiquitously expressed ATP release membrane channel, has been shown to play a role in inflammation and blood pressure regulation. Panx1 channel function is inhibited by spironolactone, a frontline therapy for heart failure patients. Despite this, the function of Panx1 in cardiomyocytes and a possible role in heart failure has not yet been studied. To investigate if Panx1 is involved in the development of cardiac dysfunction and fibrosis, we use an acute (14 day) and a chronic (28 day) model of adrenergic stimulation to induce heart failure in two novel mouse models: 1) We have generated mice with constitutive deletion of Panx1 in cardiomyocytes by crossing mice expressing loxP-flanked alleles of
Panx1
to mice expressing Cre recombinase under the control of the cardiomyocyte specific
MyHC6
promoter (Panx1
MyHC6-Cre
). 2) Using mice expressing the tamoxifen-inducible MerCreMer system under the control of the
Tnnt2
promoter we generated mice with tamoxifen-inducible deletion of Panx1 in cardiomyocytes (Panx1
Tnnt2-MerCreMer
). Constitutive deletion of Panx1 in cardiomyocytes had no effect on heart function at baseline as measured by echocardiography. However, after acute isoproterenol treatment (15 mg/kg/day, i.p.), Panx1
MyHC6-Cre
mice were protected from systolic and diastolic dysfunction and cardiac hypertrophy. Furthermore, after chronic administration of isoproterenol (15 mg/kg/day, osmotic pump) Panx1
MyHC6-Cre
mice were still protected from cardiac hypertrophy compared to Panx1
fl/fl
littermates.
In vitro
, treatment of H9c2 cardiomyocytes with isoproterenol led to Panx1-dependent release of ATP in a dose-dependent manner. This was demonstrated with both pharmacological blockade by spironolactone and siRNA-mediated knock-down of Panx1. Taken together, these data demonstrates that Panx1 deficiency in cardiomyocytes protects against isoproterenol-induced cardiac dysfunction and that ATP is released through Panx1 in response to isoproterenol. Further elucidating the role of Panx1 in cardiomyocytes in regulating cardiac function and fibrosis will identify Panx1 as a novel therapeutic target to prevent heart failure.
Collapse
|
5
|
Upchurch CM, Yeudall S, Pavelec CM, Merk D, Greulich J, Manjegowda M, Raghavan SS, Bochkis IM, Scott MM, Perez-Reyes E, Leitinger N. Targeting oxidized phospholipids by AAV-based gene therapy in mice with established hepatic steatosis prevents progression to fibrosis. Sci Adv 2022; 8:eabn0050. [PMID: 35857497 PMCID: PMC9286512 DOI: 10.1126/sciadv.abn0050] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 06/03/2022] [Indexed: 05/06/2023]
Abstract
Oxidized phosphatidylcholines (OxPCs) are implicated in chronic tissue damage. Hyperlipidemic LDL-R--deficient mice transgenic for an OxPC-recognizing IgM fragment (scFv-E06) are protected against nonalcoholic fatty liver disease (NAFLD). To examine the effect of OxPC elimination at different stages of NAFLD progression, we used cre-dependent, adeno-associated virus serotype 8-mediated expression of the single-chain variable fragment of E06 (AAV8-scFv-E06) in hepatocytes of albumin-cre mice. AAV8-induced expression of scFv-E06 at the start of FPC diet protected mice from developing hepatic steatosis. Independently, expression of scFv-E06 in mice with established steatosis prevented the progression to hepatic fibrosis. Mass spectrometry-based oxophospho-lipidomics identified individual OxPC species that were reduced by scFv-E06 expression. In vitro, identified OxPC species dysregulated mitochondrial metabolism and gene expression in hepatocytes and hepatic stellate cells. We demonstrate that individual OxPC species independently affect disease initiation and progression from hepatic steatosis to steatohepatitis, and that AAV-mediated expression of scFv-E06 is an effective therapeutic intervention.
Collapse
Affiliation(s)
- Clint M. Upchurch
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Scott Yeudall
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Caitlin M. Pavelec
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Dennis Merk
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
| | - Jan Greulich
- Environmentally-Induced Cardiovascular Degeneration, Clinical Chemistry and Laboratory Diagnostics, Medical Faculty, University Hospital and Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany
- IUF-Leibniz Research Institute for Environmental Medicine, 40225 Düsseldorf, Germany
| | - Mohan Manjegowda
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Shyam S. Raghavan
- Department of Pathology, University of Virginia, Charlottesville, VA 22904, USA
| | - Irina M. Bochkis
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Michael M. Scott
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Edward Perez-Reyes
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| | - Norbert Leitinger
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA 22904, USA
| |
Collapse
|
6
|
Pavelec CM, Wolf M, Yeudall S, Upchurch C, Leitinger N. A Critical Role for Pannexin 1 in Heart Failure Induced by Acute and Chronic Isoproterenol Administration. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l7728] [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)
- Caitlin M. Pavelec
- Department of PharmacologyUniversity of VirginiaCharlottesvilleVA
- Robert M Berne Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVA
| | - Matthew Wolf
- Robert M Berne Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVA
- MedicineUniversity of VirginiaCharlottesvilleVA
| | - Scott Yeudall
- Department of PharmacologyUniversity of VirginiaCharlottesvilleVA
| | - Clint Upchurch
- Department of PharmacologyUniversity of VirginiaCharlottesvilleVA
| | - Norbert Leitinger
- Department of PharmacologyUniversity of VirginiaCharlottesvilleVA
- Robert M Berne Cardiovascular Research CenterUniversity of VirginiaCharlottesvilleVA
| |
Collapse
|
7
|
Upchurch CM, Yeudall S, Pavelec CM, Manjegowda M, Bochkis IM, Scott M, Perez‐Reyes E, Leitinger N. Virus‐induced Hepatic Expression of an Oxidized Phospholipid‐binding Antibody Fragment Prevents Initiation of Hepatic Steatosis and Progression to Fibrosis. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l8081] [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]
|
8
|
Martínez BA, Hoyle RG, Yeudall S, Granade ME, Harris TE, Castle JD, Leitinger N, Bland ML. Innate immune signaling in Drosophila shifts anabolic lipid metabolism from triglyceride storage to phospholipid synthesis to support immune function. PLoS Genet 2020; 16:e1009192. [PMID: 33227003 PMCID: PMC7721134 DOI: 10.1371/journal.pgen.1009192] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 04/28/2020] [Revised: 12/07/2020] [Accepted: 10/13/2020] [Indexed: 02/07/2023] Open
Abstract
During infection, cellular resources are allocated toward the metabolically-demanding processes of synthesizing and secreting effector proteins that neutralize and kill invading pathogens. In Drosophila, these effectors are antimicrobial peptides (AMPs) that are produced in the fat body, an organ that also serves as a major lipid storage depot. Here we asked how activation of Toll signaling in the larval fat body perturbs lipid homeostasis to understand how cells meet the metabolic demands of the immune response. We find that genetic or physiological activation of fat body Toll signaling leads to a tissue-autonomous reduction in triglyceride storage that is paralleled by decreased transcript levels of the DGAT homolog midway, which carries out the final step of triglyceride synthesis. In contrast, Kennedy pathway enzymes that synthesize membrane phospholipids are induced. Mass spectrometry analysis revealed elevated levels of major phosphatidylcholine and phosphatidylethanolamine species in fat bodies with active Toll signaling. The ER stress mediator Xbp1 contributed to the Toll-dependent induction of Kennedy pathway enzymes, which was blunted by deleting AMP genes, thereby reducing secretory demand elicited by Toll activation. Consistent with ER stress induction, ER volume is expanded in fat body cells with active Toll signaling, as determined by transmission electron microscopy. A major functional consequence of reduced Kennedy pathway induction is an impaired immune response to bacterial infection. Our results establish that Toll signaling induces a shift in anabolic lipid metabolism to favor phospholipid synthesis and ER expansion that may serve the immediate demand for AMP synthesis and secretion but with the long-term consequence of insufficient nutrient storage.
Collapse
Affiliation(s)
- Brittany A. Martínez
- Biomedical Sciences Graduate Program, University of Virginia, Charlottesville, VA, United States of America
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
| | - Rosalie G. Hoyle
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
| | - Scott Yeudall
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
- Medical Scientist Training Program, University of Virginia, Charlottesville, VA, United States of America
| | - Mitchell E. Granade
- Biomedical Sciences Graduate Program, University of Virginia, Charlottesville, VA, United States of America
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
| | - Thurl E. Harris
- Biomedical Sciences Graduate Program, University of Virginia, Charlottesville, VA, United States of America
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
| | - J. David Castle
- Department of Cell Biology, University of Virginia, Charlottesville, VA, United States of America
| | - Norbert Leitinger
- Biomedical Sciences Graduate Program, University of Virginia, Charlottesville, VA, United States of America
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
| | - Michelle L. Bland
- Biomedical Sciences Graduate Program, University of Virginia, Charlottesville, VA, United States of America
- Department of Pharmacology, University of Virginia, Charlottesville, VA, United States of America
- * E-mail:
| |
Collapse
|
9
|
Yeudall S, Leitinger N, Laubach VE. Extracellular nucleotide signaling in solid organ transplantation. Am J Transplant 2020; 20:633-640. [PMID: 31605463 PMCID: PMC7042041 DOI: 10.1111/ajt.15651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 08/01/2019] [Revised: 09/12/2019] [Accepted: 09/25/2019] [Indexed: 01/25/2023]
Abstract
The role of extracellular purine nucleotides, including adenosine triphosphate (ATP) and adenosine, as modulators of posttransplantation outcome and ischemia-reperfusion injury is becoming increasingly evident. Upon pathological release of ATP, binding and activation of P2 purinergic surface receptors promote tissue injury and inflammation, while the expression and activation of P1 receptors for adenosine have been shown to attenuate inflammation and limit ischemia-induced damage, which are central to the viability and long-term success of allografts. Here we review the current state of the transplant field with respect to the role of extracellular nucleotide signaling, with a focus on the sources and functions of extracellular ATP. The connection between ischemia reperfusion, purinergic signaling, and graft preservation, as well as the role of ATP and adenosine as driving factors in the promotion and suppression of posttransplant inflammation and allograft rejection, are discussed. We also examine novel therapeutic approaches that take advantage of the ischemia-reperfusion-responsive and immunomodulatory roles for purinergic signaling with the goal of enhancing graft viability, attenuating posttransplant inflammation, and minimizing complications including rejection, graft failure, and associated comorbidities.
Collapse
Affiliation(s)
- Scott Yeudall
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Norbert Leitinger
- Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, Virginia,Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Victor E. Laubach
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, Virginia
| |
Collapse
|
10
|
Gupton JT, Yeudall S, Telang N, Hoerrner M, Huff E, Crawford E, Lounsbury K, Kimmel M, Curry W, Harrison A, Juekun W, Shimozono A, Ortolani J, Lescalleet K, Patteson J, Moore-Stoll V, Rohena CC, Mooberry SL, Obaidullah AJ, Kellogg GE, Sikorski JA. Ortho group activation of a bromopyrrole ester in Suzuki-Miyaura cross-coupling reactions: Application to the synthesis of new microtubule depolymerizing agents with potent cytotoxic activities. Bioorg Med Chem 2017; 25:3206-3214. [PMID: 28433513 DOI: 10.1016/j.bmc.2017.04.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 02/24/2017] [Revised: 03/30/2017] [Accepted: 04/05/2017] [Indexed: 10/19/2022]
Abstract
New microtubule depolymerizing agents with potent cytotoxic activities have been prepared with a 5-cyano or 5-oximino group attached to a pyrrole core. The utilization of ortho activation of a bromopyrrole ester to facilitate successful Suzuki-Miyaura cross-coupling reactions was a key aspect of the synthetic methodology. This strategy allows for control of regiochemistry with the attachment of four completely different groups at the 2, 3, 4 and 5 positions of the pyrrole scaffold. Biological evaluations and molecular modeling studies are reported for these examples.
Collapse
Affiliation(s)
- John T Gupton
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA.
| | - Scott Yeudall
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Nakul Telang
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Megan Hoerrner
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Ellis Huff
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Evan Crawford
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Katie Lounsbury
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Michael Kimmel
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - William Curry
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Andrew Harrison
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Wen Juekun
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Alex Shimozono
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Joe Ortolani
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Kristin Lescalleet
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Jon Patteson
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | | | - Cristina C Rohena
- Department of Pharmacology and Cancer Therapy & Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Susan L Mooberry
- Department of Pharmacology and Cancer Therapy & Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Ahmad J Obaidullah
- Department of Medicinal Chemistry & Institute of Structural Biology, Drug Discovery and Development, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Glen E Kellogg
- Department of Medicinal Chemistry & Institute of Structural Biology, Drug Discovery and Development, Virginia Commonwealth University, Richmond, VA 23298, USA
| | | |
Collapse
|
11
|
Gupton JT, Telang N, Patteson J, Lescalleet K, Yeudall S, Sobieski J, Harrison A, Curry W. The application of formyl group activation of bromopyrrole esters to formal syntheses of lycogarubin C, permethyl storniamide A and lamellarin G trimethyl ether. Tetrahedron 2014; 70:9759-9767. [PMID: 25584014 DOI: 10.1016/j.tet.2014.11.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lycogarubin C, permethyl storniamide A and lamellarin G trimethyl ether are pyrrole containing, natural products, which exhibit interesting biological properties. Such properties include anti-tumor activity on a variety of cancer cell lines including those that confer drug resistance, inhibition of HIV integrase and vascular disrupting activity. We now describe the use of methyl and ethyl 3-bromo-2-formylpyrrole-5-carboxylate as building blocks for the formal synthesis of these three highly functionalized, bioactive pyrroles. These new building blocks will now provide ready access to the natural products and many novel analogs due to the ability to easily modify positions 2,3,4 and 5 of the pyrrole core.
Collapse
Affiliation(s)
- John T Gupton
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Nakul Telang
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Jon Patteson
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Kristin Lescalleet
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Scott Yeudall
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - John Sobieski
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Andrew Harrison
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Will Curry
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| |
Collapse
|