1
|
Lepechkin-Zilbermintz V, Bareket D, Gonnord V, Steffen A, Morice C, Michaut M, Munder A, Korshin EE, Contreras JM, Cerasi E, Sasson S, Gruzman A. Moderately lipophilic 2-(Het)aryl-6-dithioacetals, 2-phenyl-1,4-benzodioxane-6-dithioacetals and 2-phenylbenzofuran-5-dithioacetals: Synthesis and primary evaluation as potential antidiabetic AMPK-activators. Bioorg Med Chem 2023; 87:117303. [PMID: 37167713 DOI: 10.1016/j.bmc.2023.117303] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/13/2023]
Abstract
Since the 1950's, AMP-kinase (AMPK) has been used as a promising target for the development of antidiabetic drugs against Type 2 diabetes mellitus (T2D). Indeed, the canonical antidiabetic drug metformin recruits, at least partially, AMPK activation for its therapeutic effect. Herein we present design and synthesis of 20 novel relatively polar cyclic and acyclic dithioacetals of 2-(Het)arylchroman-6-carbaldehydes, 2-phenyl-1,4-benzodioxane-6-carbaldehyde, and 2-phenylbenzofuran-5-carbaldehyde, which were developed as potential AMPK activators. Three of the synthesized dithioacetals demonstrated significant enhancement (≥70%) of glucose uptake in rat L6 myotubes. Noteworthy, one of the dithioacetals, namely 4-(6-(1,3-dithian-2-yl)chroman-2-yl)pyridine, exhibited high potency comparing to other molecules. It increased the rate of glucose uptake in rat L6 myotubes and augmented insulin secretion from rat INS-1E cells in pharmacological relevant concentrations (up to 2 μM). Both effects were mediated by activation of AMPK. In addition, the compound showed excellent pharmacokinetic profile in healthy mice, including maximal oral bioavailability. Such bifunctionality (increased glucose uptake and insulin secretion) can be used as a starting point for the development of a novel class of antidiabetic drugs with dual activity that is relevant for T2D treatment.
Collapse
Affiliation(s)
| | - Daniel Bareket
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel
| | - Virginie Gonnord
- PRESTWICK CHEMICAL, 220 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Alexandre Steffen
- PRESTWICK CHEMICAL, 220 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Christophe Morice
- PRESTWICK CHEMICAL, 220 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Mathieu Michaut
- PRESTWICK CHEMICAL, 220 Boulevard Gonthier d'Andernach, 67400 Illkirch, France
| | - Anna Munder
- RECIPHARM Israel Ltd., 9 Hamzamara Str., 7404709, Nes Ziona, Israel
| | - Edward E Korshin
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, 52900, Ramat-Gan, Israel
| | | | - Erol Cerasi
- The Endocrinology and Metabolism Service, Department of Medicine, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Shlomo Sasson
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Jerusalem, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, 52900, Ramat-Gan, Israel.
| |
Collapse
|
2
|
Kahremany S, Hofmann L, Gruzman A, Dinkova-Kostova AT, Cohen G. NRF2 in dermatological disorders: Pharmacological activation for protection against cutaneous photodamage and photodermatosis. Free Radic Biol Med 2022; 188:262-276. [PMID: 35753587 PMCID: PMC9350913 DOI: 10.1016/j.freeradbiomed.2022.06.238] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 01/27/2023]
Abstract
The skin barrier and its endogenous protective mechanisms cope daily with exogenous stressors, of which ultraviolet radiation (UVR) poses an imminent danger. Although the skin is able to reduce the potential damage, there is a need for comprehensive strategies for protection. This is particularly important when developing pharmacological approaches to protect against photocarcinogenesis. Activation of NRF2 has the potential to provide comprehensive and long-lasting protection due to the upregulation of numerous cytoprotective downstream effector proteins that can counteract the damaging effects of UVR. This is also applicable to photodermatosis conditions that exacerbate the damage caused by UVR. This review describes the alterations caused by UVR in normal skin and photosensitive disorders, and provides evidence to support the development of NRF2 activators as pharmacological treatments. Key natural and synthetic activators with photoprotective properties are summarized. Lastly, the gap in knowledge in research associated with photodermatosis conditions is highlighted.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel; The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 86910, Israel
| | - Lukas Hofmann
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, Dundee, UK; Department of Pharmacology and Molecular Sciences and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea and Arava Science Center, Masada, 86910, Israel; Ben-Gurion University of the Negev, Eilat Campus, Eilat, 8855630, Israel.
| |
Collapse
|
3
|
Trifonov L, Rothstein A, Korshin EE, Viskind O, Afri M, Leitus G, Palczewski K, Gruzman A. Straightforward Access to Terminally Disubstituted Electron‐Deficient Alkylidene Cyclopent‐2‐en‐4‐ones through Olefination with α‐Carbonyl and α‐Cyano Secondary Alkyl Sulfones. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101258] [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: 11/07/2022]
Affiliation(s)
- Lena Trifonov
- Department of Chemistry, Bar-Ilan University Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Ayelet Rothstein
- Department of Chemistry, Bar-Ilan University Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Edward E. Korshin
- Department of Chemistry, Bar-Ilan University Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Olga Viskind
- Department of Chemistry, Bar-Ilan University Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Michal Afri
- Department of Chemistry, Bar-Ilan University Max and Anna Webb St. Ramat-Gan 5290002 Israel
| | - Gregory Leitus
- Department of Chemical Research Support the Weizmann Institute of Science Rehovot 76100 Israel
| | - Krzysztof Palczewski
- Gavin Herbert Eye Institute Department of Ophthalmology and Departments of Physiology and Biophysics and Chemistry and Molecular Biology and Biochemistry, University of California Irvine CA 92697 USA
| | - Arie Gruzman
- Department of Chemistry, Bar-Ilan University Max and Anna Webb St. Ramat-Gan 5290002 Israel
| |
Collapse
|
4
|
Kahremany S, Hofmann L, Eretz-Kdosha N, Silberstein E, Gruzman A, Cohen G. SH-29 and SK-119 Attenuates Air-Pollution Induced Damage by Activating Nrf2 in HaCaT Cells. Int J Environ Res Public Health 2021; 18:ijerph182312371. [PMID: 34886097 PMCID: PMC8656889 DOI: 10.3390/ijerph182312371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/16/2021] [Accepted: 11/22/2021] [Indexed: 12/16/2022]
Abstract
Air pollution has been repeatedly linked to numerous health-related disorders, including skin sensitization, oxidative imbalance, premature extrinsic aging, skin inflammation, and increased cancer prevalence. Nrf2 is a key player in the endogenous protective mechanism of the skin. We hypothesized that pharmacological activation of Nrf2 might reduce the deleterious action of diesel particulate matter (DPM), evaluated in HaCaT cells. SK-119, a recently synthesized pharmacological agent as well as 2,2′-((1E,1′E)-(1,4-phenylenebis(azaneylylidene))bis(methaneylylidene))bis(benzene-1,3,5-triol) (SH-29) were first evaluated in silico, suggesting a potent Nrf2 activation capacity that was validated in vitro. In addition, both compounds were able to attenuate key pathways underlying DPM damage, including cytosolic and mitochondrial reactive oxygen species (ROS) generation, tested by DC-FDA and MitoSOX fluorescent dye, respectively. This effect was independent of the low direct scavenging ability of the compounds. In addition, both SK-119 and SH-29 were able to reduce DPM-induced IL-8 hypersecretion in pharmacologically relevant concentrations. Lastly, the safety of both compounds was evaluated and demonstrated in the ex vivo human skin organ culture model. Collectively, these results suggest that Nrf2 activation by SK-119 and SH-29 can revert the deleterious action of air pollution.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (S.K.); (L.H.)
- The Dead Sea and Arava Science Center, The Skin Research Institute, Masada 8691000, Israel;
| | - Lukas Hofmann
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (S.K.); (L.H.)
| | - Noy Eretz-Kdosha
- The Dead Sea and Arava Science Center, The Skin Research Institute, Masada 8691000, Israel;
| | - Eldad Silberstein
- Department of Plastic Surgery, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva 8410100, Israel;
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (S.K.); (L.H.)
- Correspondence: (A.G.); (G.C.)
| | - Guy Cohen
- The Dead Sea and Arava Science Center, The Skin Research Institute, Masada 8691000, Israel;
- Eilat Campus, Ben Gurion University of the Negev, Eilat 8855630, Israel
- Correspondence: (A.G.); (G.C.)
| |
Collapse
|
5
|
Lior Y, Shtriker E, Kahremany S, Lewis EC, Gruzman A. Development of anti-inflammatory peptidomimetics based on the structure of human alpha1-antitrypsin. Eur J Med Chem 2021; 228:113969. [PMID: 34763945 DOI: 10.1016/j.ejmech.2021.113969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 08/04/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 01/10/2023]
Abstract
Human α1-antitrypsin (hAAT) has two distinguishing functions: anti-protease activity and regulation of the immune system. In the present study we hypothesized that those two protein functions are mediated by different structural domains on the hAAT surface. Indeed, such biologically active immunoregulatory sites (not associated with canonical anti-protease activity) on the surface of hAAT were identified by in silico methods. Several peptides were derived from those immunoregulatory sites. Four peptides exhibited impressive biological effects in pharmacological concentration ranges. Peptidomimetic (14) was developed, based on the structure of the most druggable and active peptide. The compound exhibited a potent anti-inflammatory activity in vitro and in vivo. Such a compound could be used as a basis for developing novel anti-inflammatory drug candidates and as a research tool for better understanding hAAT functions.
Collapse
Affiliation(s)
- Yotam Lior
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Efrat Shtriker
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel; The Skin Research Institute, The Dead Sea and Arava Science Center, 86910, Masada, Israel
| | - Eli C Lewis
- Department of Clinical Biochemistry and Pharmacology, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel.
| |
Collapse
|
6
|
Alpert E, Akhavan A, Gruzman A, Hansen WJ, Lehrer-Graiwer J, Hall SC, Johansen E, McAllister S, Gulati M, Lin MF, Lingappa VR. Multifunctionality of Prostatic Acid Phosphatase in Prostate Cancer Pathogenesis. Biosci Rep 2021:BSR20211646. [PMID: 34605872 DOI: 10.1042/bcj20200944] [Citation(s) in RCA: 1] [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: 07/14/2021] [Revised: 09/18/2021] [Accepted: 10/04/2021] [Indexed: 11/17/2022] Open
Abstract
The role of human prostatic acid phosphatase (PAcP, P15309|PPAP_HUMAN) in prostate cancer was investigated using a new proteomic tool termed signal sequence swapping (replacement of domains from the native cleaved amino terminal signal sequence of secretory/membrane proteins with corresponding regions of functionally distinct signal sequence subtypes). This manipulation preferentially redirects proteins to different pathways of biogenesis at the endoplasmic reticulum, magnifying normally difficult to detect subsets of the protein of interest. For PAcP this technique reveals three forms identical in amino acid sequence but profoundly different in physiological functions, subcellular location, and biochemical properties. These three forms of PAcP can also occur with the wild-type PAcP signal sequence. Clinical specimens from patients with prostate cancer demonstrate that one form, termed PLPAcP, correlates with early prostate cancer. These findings confirm the analytical power of this method, implicate PLPAcP in prostate cancer pathogenesis, and suggest novel anticancer therapeutic strategies.
Collapse
Affiliation(s)
- Evgenia Alpert
- Bioconformatics laboratory of the California Pacific Medical Center (CPMC) Research Institute, Ramat-Gan, California, United States
| | - Armin Akhavan
- Bioconformatics Laboratory of the California Pacific Medical Center (CPMC) Research Institute, San Francisco, California, United States
| | - Arie Gruzman
- Bioconformatics Laboratory of the California Pacific Medical Center (CPMC) Research Institute, San Francisco, California, United States
| | | | - Joshua Lehrer-Graiwer
- Bioconformatics Laboratory of the California Pacific Medical Center (CPMC) Research Institute, San Francisco, California, United States
| | | | | | - Sean McAllister
- Cancer Laboratory of the California Pacific Medical Center (CPMC) Research Institute, San Francisco, California, United States
| | | | - Ming-Fong Lin
- University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Vishwanath R Lingappa
- Bioconformatics Laboratory of the California Pacific Medical Center (CPMC) Research Institute, San Francisco, California, United States
| |
Collapse
|
7
|
Blum E, Margalit R, Levy L, Getter T, Lahav R, Zilber S, Bradfield P, Imhof BA, Alpert E, Gruzman A. A Potent Leukocyte Transmigration Blocker: GT-73 Showed a Protective Effect against LPS-Induced ARDS in Mice. Molecules 2021; 26:4583. [PMID: 34361736 PMCID: PMC8348436 DOI: 10.3390/molecules26154583] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/13/2021] [Accepted: 07/22/2021] [Indexed: 01/08/2023] Open
Abstract
We recently developed a molecule (GT-73) that blocked leukocyte transendothelial migration from blood to the peripheral tissues, supposedly by affecting the platelet endothelial cell adhesion molecule (PECAM-1) function. GT-73 was tested in an LPS-induced acute respiratory distress syndrome (ARDS) mouse model. The rationale for this is based on the finding that the mortality of COVID-19 patients is partly caused by ARDS induced by a massive migration of leukocytes to the lungs. In addition, the role of tert-butyl and methyl ester moieties in the biological effect of GT-73 was investigated. A human leukocyte, transendothelial migration assay was applied to validate the blocking effect of GT-73 derivatives. Finally, a mouse model of LPS-induced ARDS was used to evaluate the histological and biochemical effects of GT-73. The obtained results showed that GT-73 has a unique structure that is responsible for its biological activity; two of its chemical moieties (tert-butyl and a methyl ester) are critical for this effect. GT-73 is a prodrug, and its lipophilic tail covalently binds to PECAM-1 via Lys536. GT-73 significantly decreased the number of infiltrating leukocytes in the lungs and reduced the inflammation level. Finally, GT-73 reduced the levels of IL-1β, IL-6, and MCP-1 in bronchoalveolar lavage fluid (BALF). In summary, we concluded that GT-73, a blocker of white blood cell transendothelial migration, has a favorable profile as a drug candidate for the treatment of ARDS in COVID-19 patients.
Collapse
Affiliation(s)
- Eliav Blum
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| | - Raanan Margalit
- Science in Action, 3 Pinchas Sapir Street, Weizmann Science Park, Ness-Ziona 7403650, Israel;
| | - Laura Levy
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| | - Tamar Getter
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| | - Ron Lahav
- AltA-ZuZ Therapeutics, 3 Pinchas Sapir Street, Weizmann Science Park, Ness-Ziona 7403650, Israel;
| | - Sofia Zilber
- Department of Pathology, Shaare Zedek Medical Center, 12 Shmuel Bait Street, Jerusalem 9103102, Israel;
| | - Paul Bradfield
- MesenFlow Technologies, Chemin des Aulx, 14, CH-1228 Geneva, Switzerland;
| | - Beat A. Imhof
- Department of Pathology and Immunology, University of Geneva, Rue Michel-Servet, CH-1211 Geneva, Switzerland;
| | - Evgenia Alpert
- AltA-ZuZ Therapeutics, 3 Pinchas Sapir Street, Weizmann Science Park, Ness-Ziona 7403650, Israel;
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Campus Ramat-Gan, Bar-Ilan University, Ramat-Gan 5290002, Israel; (E.B.); (L.L.); (T.G.)
| |
Collapse
|
8
|
Manikoth Ayyathan D, Levy-Cohen G, Shubely M, Boutros-Suleiman S, Lepechkin-Zilbermintz V, Shokhen M, Albeck A, Gruzman A, Blank M. Development and characterisation of SMURF2-targeting modifiers. J Enzyme Inhib Med Chem 2021; 36:401-409. [PMID: 33430646 PMCID: PMC7808752 DOI: 10.1080/14756366.2020.1871337] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
The C2-WW-HECT-domain E3 ubiquitin ligase SMURF2 emerges as an important regulator of diverse cellular processes. To date, SMURF2-specific modulators were not developed. Here, we generated and investigated a set of SMURF2-targeting synthetic peptides and peptidomimetics designed to stimulate SMURF2’s autoubiquitination and turnover via a disruption of the inhibitory intramolecular interaction between its C2 and HECT domains. The results revealed the effects of these molecules both in vitro and in cellulo at the nanomolar concentration range. Moreover, the data showed that targeting of SMURF2 with either these modifiers or SMURF2-specific shRNAs could accelerate cell growth in a cell-context-dependent manner. Intriguingly, a concomitant cell treatment with a selected SMURF2-targeting compound and the DNA-damaging drug etoposide markedly increased the cytotoxicity produced by this drug in growing cells. Altogether, these findings demonstrate that SMURF2 can be druggable through its self-destructive autoubiquitination, and inactivation of SMURF2 might be used to affect cell sensitivity to certain anticancer drugs.
Collapse
Affiliation(s)
- Dhanoop Manikoth Ayyathan
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Gal Levy-Cohen
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Moran Shubely
- Department of Chemistry, Bar-Ilan University, Ramat Gan, Israel
| | - Sandy Boutros-Suleiman
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | | | - Michael Shokhen
- Department of Chemistry, Bar-Ilan University, Ramat Gan, Israel
| | - Amnon Albeck
- Department of Chemistry, Bar-Ilan University, Ramat Gan, Israel
| | - Arie Gruzman
- Department of Chemistry, Bar-Ilan University, Ramat Gan, Israel
| | - Michael Blank
- Laboratory of Molecular and Cellular Cancer Biology, Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| |
Collapse
|
9
|
Blum E, Zhang J, Zaluski J, Einstein DE, Korshin EE, Kubas A, Gruzman A, Tochtrop GP, Kiser PD, Palczewski K. Rational Alteration of Pharmacokinetics of Chiral Fluorinated and Deuterated Derivatives of Emixustat for Retinal Therapy. J Med Chem 2021; 64:8287-8302. [PMID: 34081480 DOI: 10.1021/acs.jmedchem.1c00279] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Recycling of all-trans-retinal to 11-cis-retinal through the visual cycle is a fundamental metabolic pathway in the eye. A potent retinoid isomerase (RPE65) inhibitor, (R)-emixustat, has been developed and tested in several clinical trials; however, it has not received regulatory approval for use in any specific retinopathy. Rapid clearance of this drug presents challenges to maintaining concentrations in eyes within a therapeutic window. To address this pharmacokinetic inadequacy, we rationally designed and synthesized a series of emixustat derivatives with strategically placed fluorine and deuterium atoms to slow down the key metabolic transformations known for emixustat. Crystal structures and quantum chemical analysis of RPE65 in complex with the most potent emixustat derivatives revealed the structural and electronic bases for how fluoro substituents can be favorably accommodated within the active site pocket of RPE65. We found a close (∼3.0 Å) F-π interaction that is predicted to contribute ∼2.4 kcal/mol to the overall binding energy.
Collapse
Affiliation(s)
- Eliav Blum
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Jianye Zhang
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California, Irvine, California 92697, United States
| | - Jordan Zaluski
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - David E Einstein
- Department of Physiology and Biophysics, University of California, Irvine, California 92697, United States.,Research Service, VA Long Beach Healthcare System, Long Beach, California 90822, United States
| | - Edward E Korshin
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Adam Kubas
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Gregory P Tochtrop
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Philip D Kiser
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California, Irvine, California 92697, United States.,Department of Physiology and Biophysics, University of California, Irvine, California 92697, United States.,Research Service, VA Long Beach Healthcare System, Long Beach, California 90822, United States
| | - Krzysztof Palczewski
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California, Irvine, California 92697, United States.,Department of Physiology and Biophysics, University of California, Irvine, California 92697, United States.,Department of Chemistry, University of California, Irvine, California 92697, United States
| |
Collapse
|
10
|
Bianchetti G, Azoulay-Ginsburg S, Keshet-Levy NY, Malka A, Zilber S, Korshin EE, Sasson S, De Spirito M, Gruzman A, Maulucci G. Investigation of the Membrane Fluidity Regulation of Fatty Acid Intracellular Distribution by Fluorescence Lifetime Imaging of Novel Polarity Sensitive Fluorescent Derivatives. Int J Mol Sci 2021; 22:ijms22063106. [PMID: 33803648 PMCID: PMC8002861 DOI: 10.3390/ijms22063106] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/12/2021] [Accepted: 03/14/2021] [Indexed: 12/27/2022] Open
Abstract
Free fatty acids are essential structural components of the cell, and their intracellular distribution and effects on membrane organelles have crucial roles in regulating the metabolism, development, and cell cycle of most cell types. Here we engineered novel fluorescent, polarity-sensitive fatty acid derivatives, with the fatty acid aliphatic chain of increasing length (from 12 to 18 carbons). As in the laurdan probe, the lipophilic acyl tail is connected to the environmentally sensitive dimethylaminonaphthalene moiety. The fluorescence lifetime imaging analysis allowed us to monitor the intracellular distribution of the free fatty acids within the cell, and to simultaneously examine how the fluidity and the microviscosity of the membrane environment influence their localization. Each of these probes can thus be used to investigate the membrane fluidity regulation of the correspondent fatty acid intracellular distribution. We observed that, in PC-12 cells, fluorescent sensitive fatty acid derivatives with increased chain length compartmentalize more preferentially in the fluid regions, characterized by a low microviscosity. Moreover, fatty acid derivatives with the longest chain compartmentalize in lipid droplets and lysosomes with characteristic lifetimes, thus making these probes a promising tool for monitoring lipophagy and related events.
Collapse
Affiliation(s)
- Giada Bianchetti
- Neuroscience Department, Biophysics Section, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.B.); (M.D.S.)
- Fondazione Policlinico Universitario “A. Gemelli” IRCSS, 00168 Rome, Italy
| | - Salome Azoulay-Ginsburg
- Department of Chemistry, Bar-Ilan University, Ramat Gan 59290002, Israel; (S.A.-G.); (N.Y.K.-L.); (A.M.); (E.E.K.)
| | - Nimrod Yosef Keshet-Levy
- Department of Chemistry, Bar-Ilan University, Ramat Gan 59290002, Israel; (S.A.-G.); (N.Y.K.-L.); (A.M.); (E.E.K.)
- Department of Pathology, Shaare Zedek Medical Center, Jerusalem 9103102, Israel;
| | - Aviv Malka
- Department of Chemistry, Bar-Ilan University, Ramat Gan 59290002, Israel; (S.A.-G.); (N.Y.K.-L.); (A.M.); (E.E.K.)
| | - Sofia Zilber
- Department of Pathology, Shaare Zedek Medical Center, Jerusalem 9103102, Israel;
| | - Edward E. Korshin
- Department of Chemistry, Bar-Ilan University, Ramat Gan 59290002, Israel; (S.A.-G.); (N.Y.K.-L.); (A.M.); (E.E.K.)
| | - Shlomo Sasson
- Institute for Drug Research, Faculty of Medicine, The Hebrew University, Jerusalem 911210, Israel;
| | - Marco De Spirito
- Neuroscience Department, Biophysics Section, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.B.); (M.D.S.)
- Fondazione Policlinico Universitario “A. Gemelli” IRCSS, 00168 Rome, Italy
| | - Arie Gruzman
- Department of Chemistry, Bar-Ilan University, Ramat Gan 59290002, Israel; (S.A.-G.); (N.Y.K.-L.); (A.M.); (E.E.K.)
- Correspondence: (A.G.); (G.M.); Tel.: +972-54-7489041 (A.G.); +39-06-3015-4265 (G.M.)
| | - Giuseppe Maulucci
- Neuroscience Department, Biophysics Section, Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (G.B.); (M.D.S.)
- Fondazione Policlinico Universitario “A. Gemelli” IRCSS, 00168 Rome, Italy
- Correspondence: (A.G.); (G.M.); Tel.: +972-54-7489041 (A.G.); +39-06-3015-4265 (G.M.)
| |
Collapse
|
11
|
Azoulay-Ginsburg S, Di Salvio M, Weitman M, Afri M, Ribeiro S, Ebbinghaus S, Cestra G, Gruzman A. Chemical chaperones targeted to the endoplasmic reticulum (ER) and lysosome prevented neurodegeneration in a C9orf72 repeat expansion drosophila amyotrophic lateral sclerosis (ALS) model. Pharmacol Rep 2021; 73:536-550. [PMID: 33661518 DOI: 10.1007/s43440-021-00226-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 11/25/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND ALS is an incurable neuromuscular degenerative disorder. A familiar form of the disease (fALS) is related to point mutations. The most common one is an expansion of a noncoding GGGGCC hexanucleotide repeat of the C9orf72 gene on chromosome 9p21. An abnormal translation of the C9orf72 gene generates dipeptide repeat proteins that aggregate in the brain. One of the classical approaches for developing treatment against protein aggregation-related diseases is to use chemical chaperones (CSs). In this work, we describe the development of novel 4-phenylbutyric acid (4-PBA) lysosome/ER-targeted derivatives. We assumed that 4-PBA targeting to specific organelles, where protein degradation takes place, might reduce the 4-PBA effective concentration. METHODS Organic chemistry synthetic methods and solid-phase peptide synthesis (SPPS) were used for preparing the 4-PBA derivatives. The obtained compounds were evaluated in an ALS Drosophila model that expressed C9orf72 repeat expansion, causing eye degeneration. Targeting to lysosome was validated by the 19F-nuclear magnetic resonance (NMR) technique. RESULTS Several synthesized compounds exhibited a significant biological effect by ameliorating the eye degeneration. They blocked the neurodegeneration of fly retina at different efficacy levels. The most active CS was compound 9, which is a peptide derivative and was targeted to ER. Another active compound targeted to lysosome was compound 4. CONCLUSIONS Novel CSs were more effective than 4-PBA; therefore, they might be used as a new class of drug candidates to treat ALS and other protein misfolding disorders.
Collapse
Affiliation(s)
| | - Michela Di Salvio
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185, Rome, Italy.,Institute of Molecular Biology and Pathology, National Research Council, Sapienza University of Rome, 00185, Rome, Italy
| | | | - Michal Afri
- Bar-Ilan University, 5290002, Ramat-Gan, Israel
| | - Sara Ribeiro
- Institute of Physical and Theoretical Chemistry, TU Braunschweig, 38106, Braunschweig, Germany
| | - Simon Ebbinghaus
- Institute of Physical and Theoretical Chemistry, TU Braunschweig, 38106, Braunschweig, Germany
| | - Gianluca Cestra
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00185, Rome, Italy. .,Institute of Molecular Biology and Pathology, National Research Council, Sapienza University of Rome, 00185, Rome, Italy.
| | - Arie Gruzman
- Bar-Ilan University, 5290002, Ramat-Gan, Israel.
| |
Collapse
|
12
|
Kahremany S, Hofmann L, Harari M, Gruzman A, Cohen G. Pruritus in psoriasis and atopic dermatitis: current treatments and new perspectives. Pharmacol Rep 2021; 73:443-453. [PMID: 33460006 DOI: 10.1007/s43440-020-00206-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 09/13/2020] [Revised: 11/11/2020] [Accepted: 11/29/2020] [Indexed: 02/06/2023]
Abstract
Psoriasis and atopic dermatitis (AD) are two common chronic inflammatory skin diseases. Although showing different etiology and clinical manifestations, patients with either disease suffer from low health-related quality of life due to pruritus (dermal itch). Recent studies have revealed that more than 85% of psoriasis patients suffer from pruritus, and it is also the dominating symptom of AD. However, as this is a non-life treating symptom, it was partly neglected for years. In this review, we focus on current findings as well as the impact and potential treatments of pruritus in these two skin diseases. We first distinguish the type of itch based on involved mediators and modulators. This clear delineation between the types of pruritus based on involved receptors and pathways allows for precise treatment. In addition, insights into recent clinical trials aimed to alleviate pruritus by targeting these receptors are presented. We also report about novel advances in combinatorial treatments, dedicated to the type of pruritus linked to a causal disease. Altogether, we suggest that only a focused treatment tailored to the primary disease and the underlying molecular signals will provide fast and sustained relief of pruritus associated with psoriasis or AD.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, 5290002, Ramat Gan, Israel. .,The Skin Research Institute, The Dead Sea and Arava Science Center, 86910, Masada, Israel.
| | - Lukas Hofmann
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Marco Harari
- Medical Climatotherapy Unit, The Dead Sea and Arava Science Center, 86910, Masada, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea and Arava Science Center, 86910, Masada, Israel.,Ben Gurion University of the Negev, Eilat Campus, 8855630, Eilat, Israel
| |
Collapse
|
13
|
Blum E, Zhang J, Korshin E, Palczewski K, Gruzman A. Development of chiral fluorinated alkyl derivatives of emixustat as drug candidates for the treatment of retinal degenerative diseases. Bioorg Med Chem Lett 2020; 30:127421. [PMID: 32717613 PMCID: PMC7494577 DOI: 10.1016/j.bmcl.2020.127421] [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] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 11/16/2022]
Abstract
The discovery of how a photon is converted into a chemical signal is one of the most important achievements in the field of vision. A key molecule in this process is the visual chromophore retinal. Several eye diseases are attributed to the abnormal metabolism of retinal in the retina and the retinal pigment epithelium. Also, the accumulation of two toxic retinal derivatives, N-retinylidene-N-retinylethanolamine and the retinal dimer, can damage the retina leading to blindness. RPE65 (Retinal pigment epithelium-specific 65 kDa protein) is one of the central enzymes that regulates the metabolism of retinal and the formation of its toxic metabolites. Its inhibition might decrease the rate of the retina's degeneration by limiting the amount of retinal and its toxic byproducts. Two RPE65 inhibitors, (R)-emixustat and (R)-MB001, were recently developed for this purpose.
Collapse
Affiliation(s)
- Eliav Blum
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Jianye Zhang
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California, Irvine, CA 92697, USA
| | - Edward Korshin
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Krzysztof Palczewski
- Gavin Herbert Eye Institute, Department of Ophthalmology, University of California, Irvine, CA 92697, USA; Departments of Physiology and Biophysics, and Chemistry, University of California, Irvine, CA 92697, USA
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| |
Collapse
|
14
|
Kahremany S, Hofmann L, Gruzman A, Cohen G. Advances in Understanding the Initial Steps of Pruritoceptive Itch: How the Itch Hits the Switch. Int J Mol Sci 2020; 21:ijms21144883. [PMID: 32664385 PMCID: PMC7402353 DOI: 10.3390/ijms21144883] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 02/07/2023] Open
Abstract
Pruritoceptive (dermal) itch was long considered an accompanying symptom of diseases, a side effect of drug applications, or a temporary sensation induced by invading pruritogens, as produced by the stinging nettle. Due to extensive research in recent years, it was possible to provide detailed insights into the mechanism of itch mediation and modulation. Hence, it became apparent that pruritus is a complex symptom or disease in itself, which requires particular attention to improve patients’ health. Here, we summarize recent findings in pruritoceptive itch, including how this sensation is triggered and modulated by diverse endogenous and exogenous pruritogens and their receptors. A differentiation between mediating pruritogen and modulating pruritogen seems to be of great advantage to understand and decipher the molecular mechanism of itch perception. Only a comprehensive view on itch sensation will provide a solid basis for targeting this long-neglected adverse sensation accompanying numerous diseases and many drug side effects. Finally, we identify critical aspects of itch perception that require future investigation.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (A.G.)
- The Skin Research Institute, The Dead Sea and Arava Science Center, Masada 86910, Israel;
- Correspondence:
| | - Lukas Hofmann
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (A.G.)
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; (L.H.); (A.G.)
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea and Arava Science Center, Masada 86910, Israel;
- Ben-Gurion University of the Negev, Eilat Campus, Eilat 8855630, Israel
| |
Collapse
|
15
|
Azoulay‐Ginsburg S, Trobiani L, Setini A, Favaloro FL, Giorda E, Jacob A, Hauschner H, Levy L, Cestra G, De Jaco A, Gruzman A. A Lipophilic 4‐Phenylbutyric Acid Derivative That Prevents Aggregation and Retention of Misfolded Proteins. Chemistry 2020; 26:1834-1845. [DOI: 10.1002/chem.201904292] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/17/2019] [Indexed: 12/20/2022]
Affiliation(s)
| | - Laura Trobiani
- Department of Biology and Biotechnology “Charles Darwin”, andPasteur Institute—Cenci Bolognetti FoundationSapienza University of Rome Piazzale Aldo Moro 5 Rome 00185 Italy
| | - Andrea Setini
- Department of Biology and Biotechnology “Charles Darwin”, andPasteur Institute—Cenci Bolognetti FoundationSapienza University of Rome Piazzale Aldo Moro 5 Rome 00185 Italy
| | - Flores Lietta Favaloro
- Department of Biology and Biotechnology “Charles Darwin”, andPasteur Institute—Cenci Bolognetti FoundationSapienza University of Rome Piazzale Aldo Moro 5 Rome 00185 Italy
| | - Ezio Giorda
- Ospedale Pediatrico Bambin Gesù-Rome Piazza di Sant'Onofrio 4 Rome 00165 Italy
| | - Avi Jacob
- Faculty of Life SciencesBar-Ilan University Ramat-Gan 5290002 Israel
| | - Hagit Hauschner
- Faculty of Life SciencesBar-Ilan University Ramat-Gan 5290002 Israel
| | - Laura Levy
- Department of ChemistryBar-Ilan University Ramat-Gan 5290002 Israel
| | - Gianluca Cestra
- Department of Biology and Biotechnology “Charles Darwin”, andPasteur Institute—Cenci Bolognetti FoundationSapienza University of Rome Piazzale Aldo Moro 5 Rome 00185 Italy
- Institute of Molecular Biology and Pathology—National Research CouncilSapienza University of Rome Piazzale Aldo Moro 5 Rome 00185 Italy
| | - Antonella De Jaco
- Department of Biology and Biotechnology “Charles Darwin”, andPasteur Institute—Cenci Bolognetti FoundationSapienza University of Rome Piazzale Aldo Moro 5 Rome 00185 Italy
| | - Arie Gruzman
- Department of ChemistryBar-Ilan University Ramat-Gan 5290002 Israel
| |
Collapse
|
16
|
Meir A, Lepechkin-Zilbermintz V, Kahremany S, Schwerdtfeger F, Gevorkyan-Airapetov L, Munder A, Viskind O, Gruzman A, Ruthstein S. Inhibiting the copper efflux system in microbes as a novel approach for developing antibiotics. PLoS One 2019; 14:e0227070. [PMID: 31887125 PMCID: PMC6936879 DOI: 10.1371/journal.pone.0227070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 09/19/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022] Open
Abstract
Five out of six people receive at least one antibiotic prescription per year. However, the ever-expanding use of antibiotics in medicine, agriculture, and food production has accelerated the evolution of antibiotic-resistant bacteria, which, in turn, made the development of novel antibiotics based on new molecular targets a priority in medicinal chemistry. One way of possibly combatting resistant bacterial infections is by inhibiting the copper transporters in prokaryotic cells. Copper is a key element within all living cells, but it can be toxic in excess. Both eukaryotic and prokaryotic cells have developed distinct copper regulation systems to prevent its toxicity. Therefore, selectively targeting the prokaryotic copper regulation system might be an initial step in developing next-generation antibiotics. One such system is the Gram-negative bacterial CusCFBA efflux system. CusB is a key protein in this system and was previously reported to play an important role in opening the channel for efflux via significant structural changes upon copper binding while also controlling the assembly and disassembly process of the entire channel. In this study, we aimed to develop novel peptide copper channel blockers, designed by in silico calculations based on the structure of CusB. Using a combination of magnetic resonance spectroscopy and various biochemical methods, we found a lead peptide that promotes copper-induced cell toxicity. Targeting copper transport in bacteria has not yet been pursued as an antibiotic mechanism of action. Thus, our study lays the foundation for discovering novel antibiotics.
Collapse
Affiliation(s)
- Aviv Meir
- Chemistry Department, Faculty of Exact Sciences, Bar Ilan University, Ramat-Gan, Israel
| | | | - Shirin Kahremany
- Gavin Herbert Eye Institute and the Department of Ophthalmology, University of California, Irvine, California, United States of America
| | - Fabian Schwerdtfeger
- Chemistry Department, Faculty of Exact Sciences, Bar Ilan University, Ramat-Gan, Israel
- Faculty of Biology, Albert-Ludwigs-University Freiburg, Centre for Biological Signaling Studies (BIOSS), Freiburg, Germany
| | | | - Anna Munder
- Chemistry Department, Faculty of Exact Sciences, Bar Ilan University, Ramat-Gan, Israel
| | - Olga Viskind
- Chemistry Department, Faculty of Exact Sciences, Bar Ilan University, Ramat-Gan, Israel
| | - Arie Gruzman
- Chemistry Department, Faculty of Exact Sciences, Bar Ilan University, Ramat-Gan, Israel
- * E-mail: (SR); (AG)
| | - Sharon Ruthstein
- Chemistry Department, Faculty of Exact Sciences, Bar Ilan University, Ramat-Gan, Israel
- * E-mail: (SR); (AG)
| |
Collapse
|
17
|
Getter T, Margalit R, Kahremany S, Levy L, Blum E, Khazanov N, Keshet-Levy NY, Tamir TY, Ben Major M, Lahav R, Zilber S, Senderowitz H, Bradfield P, Imhof BA, Alpert E, Gruzman A. Novel inhibitors of leukocyte transendothelial migration. Bioorg Chem 2019; 92:103250. [PMID: 31580982 DOI: 10.1016/j.bioorg.2019.103250] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 05/30/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 02/08/2023]
Abstract
Leukocyte transendothelial migration is one of the most important step in launching an inflammatory immune response and chronic inflammation can lead to devastating diseases. Leukocyte migration inhibitors are considered as promising and potentially effective therapeutic agents to treat inflammatory and auto-immune disorders. In this study, based on previous trioxotetrahydropyrimidin based integrin inhibitors that suboptimally blocked leukocyte adhesion, twelve molecules with a modified scaffold were designed, synthesized, and tested in vitro for their capacity to block the transendothelial migration of immune cells. One of the molecules, namely, methyl 4-((2-(tert-butyl)-6-((2,4,6-trioxotetrahydropyrimidin-5(2H)-ylidene) methyl) phenoxy) methyl) benzoate, (compound 12), completely blocked leukocyte transendothelial migration, without any toxic effects on immune or endothelial cells (IC50 = 2.4 µM). In vivo, compound 12 exhibited significant therapeutic effects in inflammatory bowel disease (IBD)/Crohn's disease, multiple sclerosis, fatty liver disease, and rheumatoid arthritis models. A detailed acute and chronic toxicity profile of the lead compound in vivo did not reveal any toxic effects. Such a type of molecule might therefore provide a unique starting point for designing a novel class of leukocyte transmigration blocking agents with broad therapeutic applications in inflammatory and auto-immune pathologies.
Collapse
Affiliation(s)
- Tamar Getter
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Raanan Margalit
- "Science in Action", Ness-Ziona, Israel; "AltA-ZuZ Therapeutics", Ness-Ziona, Israel
| | - Shirin Kahremany
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Laura Levy
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Eliav Blum
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Netaly Khazanov
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Nimrod Y Keshet-Levy
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel; Department of Pathology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Tigist Y Tamir
- Department of Pharmacology and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - M Ben Major
- Department of Pharmacology and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Ron Lahav
- "AltA-ZuZ Therapeutics", Ness-Ziona, Israel
| | - Sofia Zilber
- Department of Pathology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Hanoch Senderowitz
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | | | - Beat A Imhof
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | | | - Arie Gruzman
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel.
| |
Collapse
|
18
|
Kahremany S, Gvirtz R, Ogen-Shtern N, Cohen G, Gruzman A. 552 Pharmacological activation of the Nrf2 pathway attenuates UVB & LPS-induced damage. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
19
|
Kahremany S, Babaev I, Gvirtz R, Ogen-Stern N, Azoulay-Ginsburg S, Senderowitz H, Cohen G, Gruzman A. Nrf2 Activation by SK-119 Attenuates Oxidative Stress, UVB, and LPS-Induced Damage. Skin Pharmacol Physiol 2019; 32:173-181. [PMID: 31079103 DOI: 10.1159/000499432] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 03/05/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS The Nrf2 signaling pathway plays a pivotal role in neutralizing excess reactive oxygen species formation and therefore enhancing the endogenous cellular protection mechanism. Thus, activating this pathway may provide therapeutic options against oxidative stress-related disorders. We have recently applied a computer-aided drug design approach to the design and synthesis of novel Nrf2 enhancers. The current study was aimed at investigating the potential beneficial impact of (E)-5-oxo-1-(4-((2,4,6-trihydroxybenzylidene)amino)phenyl)pyrrolidine-3-carboxylic acid (SK-119) in skin oxidative damage models. METHODS SK-119, tested initially in PC-12 cells, attenuated oxidative stress-induced cytotoxicity concomitantly with Nrf2 activation. The potential impact of this compound was evaluated in skin-based disease models both in vitro (HaCaT cells) and ex vivo (human skin organ culture). RESULTS The data clearly showed the marked anti-inflammatory and photoprotection properties of the compound; SK-119-treated cells or tissues displayed a reduction in cytokine secretion induced by lipopolysaccharides (LPS) in a manner comparable with dexamethasone. In addition, topical application of SK-119 was able to block UVB-induced oxidative stress and attenuated caspase-mediated apoptosis, DNA adduct formation, and the concomitant cellular damage. CONCLUSION These results indicate that SK-119 is an Nrf2 activator that can be used as a prototype molecule for the development of novel treatments of dermatological disorders related to oxidative stress.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, Israel.,Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Ilana Babaev
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Raanan Gvirtz
- The Skin Research Institute, The Dead-Sea and Arava Science Center, Masada, Israel
| | - Navit Ogen-Stern
- The Skin Research Institute, The Dead-Sea and Arava Science Center, Masada, Israel
| | | | - Hanoch Senderowitz
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Guy Cohen
- The Skin Research Institute, The Dead-Sea and Arava Science Center, Masada, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, Israel,
| |
Collapse
|
20
|
Munder A, Moskovitz Y, Meir A, Kahremany S, Levy L, Kolitz-Domb M, Cohen G, Shtriker E, Viskind O, Lellouche JP, Senderowitz H, Chessler SD, Korshin EE, Ruthstein S, Gruzman A. Neuroligin-2-derived peptide-covered polyamidoamine-based (PAMAM) dendrimers enhance pancreatic β-cells' proliferation and functions. Medchemcomm 2019; 10:280-293. [PMID: 30881615 PMCID: PMC6390468 DOI: 10.1039/c8md00419f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/11/2018] [Indexed: 01/02/2023]
Abstract
Pancreatic β-cell membranes and presynaptic areas of neurons contain analogous protein complexes that control the secretion of bioactive molecules. These complexes include the neuroligins (NLs) and their binding partners, the neurexins (NXs). It has been recently reported that both insulin secretion and the proliferation rates of β-cells increase when cells are co-cultured with full-length NL-2 clusters. The pharmacological use of full-length protein is always problematic due to its unfavorable pharmacokinetic properties. Thus, NL-2-derived short peptide was conjugated to the surface of polyamidoamine-based (PAMAM) dendrimers. This nanoscale composite improved β-cell functions in terms of the rate of proliferation, glucose-stimulated insulin secretion (GSIS), and functional maturation. This functionalized dendrimer also protected β-cells under cellular stress conditions. In addition, various novel peptidomimetic scaffolds of NL-2-derived peptide were designed, synthesized, and conjugated to the surface of PAMAM in order to increase the biostability of the conjugates. However, after being covered by peptidomimetics, PAMAM dendrimers were inactive. Thus, the original peptide-based PAMAM dendrimer is a leading compound for continued research that might provide a unique starting point for designing an innovative class of antidiabetic therapeutics that possess a unique mode of action.
Collapse
Affiliation(s)
- Anna Munder
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Yoni Moskovitz
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Aviv Meir
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Shirin Kahremany
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
- Department of Pharmacology , Cleveland Center for Membrane and Structural Biology , School of Medicine , Case Western Reserve University , Cleveland , OH , USA
| | - Laura Levy
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Michal Kolitz-Domb
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Guy Cohen
- Skin Research Institute , Dead Sea and Arava Research Center , Masada , Israel
| | - Efrat Shtriker
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Olga Viskind
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Jean-Paul Lellouche
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
- Nanomaterials Research Center , Institute of Nanotechnology & Advanced Materials (BINA) , Bar-Ilan University , Ramat-Gan , Israel
| | - Hanoch Senderowitz
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Steven D Chessler
- Division of Endocrinology, Diabetes & Metabolism , Department of Medicine , University of California , Irvine , CA , USA
| | - Edward E Korshin
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Sharon Ruthstein
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| | - Arie Gruzman
- Department of Chemistry , Faculty of Exact Sciences , Bar-Ilan University , Ramat-Gan , Israel . ;
| |
Collapse
|
21
|
Trifonov L, Nudelman V, Zhenin M, Matsree E, Afri M, Schmerling B, Cohen G, Jozwiak K, Weitman M, Korshin E, Senderowitz H, Shainberg A, Hochhauser E, Gruzman A. Structurally Simple, Readily Available Peptidomimetic 1-Benzyl-5-methyl-4-( n-octylamino)pyrimidin-2(1 H)-one Exhibited Efficient Cardioprotection in a Myocardial Ischemia (MI) Mouse Model. J Med Chem 2018; 61:11309-11326. [PMID: 30507195 DOI: 10.1021/acs.jmedchem.8b01471] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
TLR4, a member of the Toll-like receptor (TLR) family, serves as a pattern recognition receptor in the innate immune response to microbial pathogens. TLR4 also regulates the inflammatory reaction to ischemic injury in the heart. The TRIF-related adaptor molecule (TRAM) is an adapter that recruits the Toll/interleukin 1 receptor (TIR) domain, which contains adapter-inducing IFN-β (TRIF), to activate TLR4, following TRIF-dependent cytokine gene transcription. On the basis of a known TRAM-derived decoy peptide, 10 of its peptidomimetics were synthesized. One of them, 1-benzyl-5-methyl-4-( n-octylamino)pyrimidin-2(1 H)-one (21), exhibited high potency and efficacy in vitro. In vitro results and in silico analysis provided evidence for the possible direct interaction of 21 with the TLR4 complex. Administered in mice, 21 was able to block the pathophysiological manifestation of MI, restoring the concomitant tissue damage, with a 100% survival rate. Thus, inhibition of TLR4-mediated inflammation in postischemic myocardium could be used as an approach for developing cardioprotective drugs.
Collapse
Affiliation(s)
| | - Vadim Nudelman
- Cardiac Research Laboratory, Felsenstein Research Center, Rabin Medical Center, Sackler Faculty of Medicine , Tel Aviv University , Jabotinsky Street , Petach Tikva 49100 , Israel
| | | | - Erez Matsree
- Cardiac Research Laboratory, Felsenstein Research Center, Rabin Medical Center, Sackler Faculty of Medicine , Tel Aviv University , Jabotinsky Street , Petach Tikva 49100 , Israel
| | | | | | - Guy Cohen
- The Skin Research Institute , The Dead-Sea & Arava Science Center , Masada 86910 , Israel
| | - Krzysztof Jozwiak
- Department of Biopharmacy , Medical University of Lublin , W. Chodzki 4a , Lublin 20-093 , Poland
| | | | | | | | | | - Edith Hochhauser
- Cardiac Research Laboratory, Felsenstein Research Center, Rabin Medical Center, Sackler Faculty of Medicine , Tel Aviv University , Jabotinsky Street , Petach Tikva 49100 , Israel
| | | |
Collapse
|
22
|
Trifonov L, Afri M, Palczewski K, Korshin EE, Gruzman A. An Expedient Synthesis of CMF-019: (S)-5-Methyl-3-{1-(pentan-3-yl)-2- (thiophen-2-ylmethyl)-1H-benzo[d]imidazole-5-carboxamido}hexanoic Acid, a Potent Apelin Receptor (APJ) Agonist. Med Chem 2018; 14:688-694. [PMID: 29651942 DOI: 10.2174/1573406414666180412154952] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 10/01/2017] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Apelin receptor (APJ) is a G protein-coupled receptor (GPCR) activated by the endogenous peptide apelin. The apelin-APJ system has emerged as an important regulator of cardiovascular homeostasis. Recently, a potent benzimidazole-derived apelin peptidomimetic, CMF-019, was patented but without a comprehensive description of its synthesis and a complete spectroscopic characterization of the intermediates. OBJECTIVE Here, a detailed preparation of CMF-019 through a modified and improved synthetic pathway is described. METHOD In particular, the benzimidazole ring in 7 was tailored by the condensation of methyl 3- amino-4-(pentan-3-ylamino)benzoate (4) with (thiophene-2-yl)acetimidate salt 6. Saponification of 7 and the subsequent condensation of the free acid 8 with the corresponding enantiopure β-amino acid methyl ester generated methyl (S)-5-methyl-3-{1-(pentan-3-yl)-2-(thiophen-2-ylmethyl)-1Hbenzo[ d]imidazole-5-carboxamido}hexanoate (9). Hydrolysis of the latter with KOH in THF/water, followed by HPLC-purification, afforded the desired product, CMF-019 (potassium salt) 10. RESULTS & CONCLUSION The approach reported herein enables preparation of 10 at a total yield of 12% over seven linear steps. Additionally, it does not require applying expensive designated microwave reactors and high-pressure hydrogenators. Thus, the elaborate synthesis provides a latent availability of potent agonist 10 for further exploring the physiologically essential apelin-APJ system.
Collapse
Affiliation(s)
- Lena Trifonov
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Michal Afri
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Krzysztof Palczewski
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, 44106-4965, United States
| | - Edward E Korshin
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Arie Gruzman
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| |
Collapse
|
23
|
Kahremany S, Babaev I, Hasin P, Tamir TY, Ben-Zur T, Cohen G, Jiang Z, Weintraub S, Offen D, Rahimipour S, Major MB, Senderowitz H, Gruzman A. Computer-Aided Design and Synthesis of 1-{4-[(3,4-Dihydroxybenzylidene)amino]phenyl}-5-oxopyrrolidine-3-carboxylic Acid as an Nrf2 Enhancer. Chempluschem 2018; 83:318. [PMID: 31957368 DOI: 10.1002/cplu.201800155] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Invited for this month's cover is Prof. Arie Gruzman (Bar-Ilan University) and collaborators who have developed an Nrf2 enhancer. This compound activated the Nrf2 transduction pathway and because of this the translation of dozens of antioxidant cytoprotective proteins in a dose- and time-dependent manner and protected PC-12 cells against oxidative stress. Considering the imbalance between production and elimination of oxidative species involved in the pathophysiology of many human diseases, this compound is a promising starting point for the development of novel therapeutics for the treatment of oxidative-stress-related diseases. Read the full text of the article at 10.1002/cplu.201700539.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Ilana Babaev
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Pinhas Hasin
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Tigist Y Tamir
- Department of Pharmacology, and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Tali Ben-Zur
- Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel-Aviv University, Rabin Medical Center-Beilinson Campus, Petah Tikva, 49100, Israel
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea & Arava Science Center, Tamar Regional Council, Dead Sea Mobile Post, 86910, Israel
| | - Zhengyu Jiang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University Nanjing, Jiangsu, 210008, P. R. China
| | - Sagiv Weintraub
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Daniel Offen
- Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel-Aviv University, Rabin Medical Center-Beilinson Campus, Petah Tikva, 49100, Israel
| | - Shai Rahimipour
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - M Ben Major
- Department of Pharmacology, and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Hanoch Senderowitz
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| |
Collapse
|
24
|
Kahremany S, Babaev I, Hasin P, Tamir TY, Ben-Zur T, Cohen G, Jiang Z, Weintraub S, Offen D, Rahimipour S, Major MB, Senderowitz H, Gruzman A. Front Cover: Computer-Aided Design and Synthesis of 1-{4-[(3,4-Dihydroxybenzylidene)amino]phenyl}-5-oxopyrrolidine-3-carboxylic Acid as an Nrf2 Enhancer (ChemPlusChem 5/2018). Chempluschem 2018. [DOI: 10.1002/cplu.201800156] [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: 11/08/2022]
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| | - Ilana Babaev
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| | - Pinhas Hasin
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| | - Tigist Y. Tamir
- Department of Pharmacology; and the Lineberger Comprehensive Cancer Center; University of North Carolina at Chapel Hill; Chapel Hill NC 27599 USA
| | - Tali Ben-Zur
- Felsenstein Medical Research Center; Sackler Faculty of Medicine; Tel-Aviv University; Rabin Medical Center-Beilinson Campus Petah Tikva 49100 Israel
| | - Guy Cohen
- The Skin Research Institute; The Dead Sea & Arava Science Center; Tamar Regional Council; Dead Sea Mobile Post 86910 Israel
| | - Zhengyu Jiang
- Jiangsu Key Laboratory of Drug Design and Optimization; Department of Medicinal Chemistry; School of Pharmacy; China Pharmaceutical University Nanjing; Jiangsu 210008 P. R. China
| | - Sagiv Weintraub
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| | - Daniel Offen
- Felsenstein Medical Research Center; Sackler Faculty of Medicine; Tel-Aviv University; Rabin Medical Center-Beilinson Campus Petah Tikva 49100 Israel
| | - Shai Rahimipour
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| | - M. Ben Major
- Department of Pharmacology; and the Lineberger Comprehensive Cancer Center; University of North Carolina at Chapel Hill; Chapel Hill NC 27599 USA
| | - Hanoch Senderowitz
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| | - Arie Gruzman
- Department of Chemistry; Faculty of Exact Sciences; Bar-Ilan University; Ramat Gan 5290002 Israel
| |
Collapse
|
25
|
Kahremany S, Babaev I, Hasin P, Tamir TY, Ben-Zur T, Cohen G, Jiang Z, Weintraub S, Offen D, Rahimipour S, Major MB, Senderowitz H, Gruzman A. Computer-Aided Design and Synthesis of 1-{4-[(3,4-Dihydroxybenzylidene)amino]phenyl}-5-oxopyrrolidine-3-carboxylic Acid as an Nrf2 Enhancer. Chempluschem 2018; 83:320-333. [PMID: 31957349 DOI: 10.1002/cplu.201700539] [Citation(s) in RCA: 6] [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: 12/18/2017] [Indexed: 12/12/2022]
Abstract
The design and synthesis of a novel nuclear factor erythroid 2-related factor 2 (Nrf2) enhancer is reported. Using a structure-based virtual screening approach, several commercially available compounds were identified as having high probability to interact with the Nrf2-binding pocket in the Kelch-like ECH-associated protein 1 (Keap1). Keap1 is an adaptor protein that recruits Nrf2 to a cullin-3-dependent ubiquitin ligase complex. The identified compounds were tested against rat pheochromocytoma PC-12 cells for their cytoprotective activity, and one compound (SKT359126) demonstrated an Nrf2-mediated cell-protective effect. Based on the structure of SKT359126, 23 novel derivatives were synthesized and evaluated. Of the screened derivatives, 1-{4-[(3,4-dihydroxybenzylidene)amino]phenyl}-5-oxopyrrolidine-3-carboxylic acid demonstrated better activity than the parent molecules in activating the Nrf2 transduction pathway in a dose- and time-dependent manner. This compound represents a promising starting point for the development of therapeutics for the treatment of oxidative-stress-related diseases.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Ilana Babaev
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Pinhas Hasin
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Tigist Y Tamir
- Department of Pharmacology, and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Tali Ben-Zur
- Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel-Aviv University, Rabin Medical Center-Beilinson Campus, Petah Tikva, 49100, Israel
| | - Guy Cohen
- The Skin Research Institute, The Dead Sea & Arava Science Center, Tamar Regional Council, Dead Sea Mobile Post, 86910, Israel
| | - Zhengyu Jiang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University Nanjing, Jiangsu, 210008, P. R. China
| | - Sagiv Weintraub
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Daniel Offen
- Felsenstein Medical Research Center, Sackler Faculty of Medicine, Tel-Aviv University, Rabin Medical Center-Beilinson Campus, Petah Tikva, 49100, Israel
| | - Shai Rahimipour
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - M Ben Major
- Department of Pharmacology, and the Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Hanoch Senderowitz
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 5290002, Israel
| |
Collapse
|
26
|
Kahremany S, Zhenin M, Shenberger Y, Maimoun D, Colotti G, Arad M, Shainberg A, Senderowitz H, Ruthstein S, Gruzman A. Peptide-based development of PKA activators. NEW J CHEM 2018. [DOI: 10.1039/c8nj01732h] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Activation of the PKA catalytic unit by small peptide (SE1). Development of peptidomimetics.
Collapse
Affiliation(s)
- Shirin Kahremany
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Michael Zhenin
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Yulia Shenberger
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat Gan
- Israel
| | - David Maimoun
- Faculty of Life Sciences
- Bar-Ilan University
- Ramat-Gan
- Israel
| | - Gianni Colotti
- Institute of Molecular Biology and Pathology CNR
- Dept. Biochemical Sciences
- Sapienza University
- Rome
- Italy
| | - Michael Arad
- Leviev Heart Center
- Sheba Medical Center
- Tel Hashomer and Sackler School of Medicine
- Tel Aviv University
- Israel
| | | | - Hanoch Senderowitz
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Sharon Ruthstein
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat Gan
- Israel
| | - Arie Gruzman
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat Gan
- Israel
| |
Collapse
|
27
|
Shamni O, Cohen G, Gruzman A, Zaid H, Klip A, Cerasi E, Sasson S. Supportive data on the regulation of GLUT4 activity by 3-O-methyl-D-glucose. Data Brief 2017; 14:329-336. [PMID: 28795110 PMCID: PMC5547241 DOI: 10.1016/j.dib.2017.07.069] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/12/2017] [Accepted: 07/25/2017] [Indexed: 11/29/2022] Open
Abstract
The data presented in this article are related to the research article entitled “Regulation of GLUT4 activity in myotubes by 3-O-methyl-D-glucose” (Shamni et al., 2017) [1]. These data show that the experimental procedures used to analyze the effects of 3-O-methyl-D-glucose (MeGlc) on the rate of hexose transport into myotubes were valid and controlled. The stimulatory effect of MeGlc was limited to glucose transporter 4 (GLUT4) and was independent of ambient glucose and protein synthesis. Cornish-Bowden kinetic analysis of uptake data revealed that MeGlc attenuated indinavir-induced inhibition of hexose transport in a competitive manner.
Collapse
Affiliation(s)
- Ofer Shamni
- The Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
| | - Guy Cohen
- The Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
| | - Arie Gruzman
- The Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
| | - Hilal Zaid
- Program in Cell Biology, Hospital for Sick Children, Toronto, OT, Canada M5G 1XB
| | - Amira Klip
- Program in Cell Biology, Hospital for Sick Children, Toronto, OT, Canada M5G 1XB
| | - Erol Cerasi
- Endocrinology and Metabolism Service, Department of Internal Medicine, The Hebrew University-Hadassah Medical Center, Jerusalem 9112001, Israel
| | - Shlomo Sasson
- The Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
- Corresponding author.
| |
Collapse
|
28
|
Shamni O, Cohen G, Gruzman A, Zaid H, Klip A, Cerasi E, Sasson S. Regulation of GLUT4 activity in myotubes by 3-O-methyl-d-glucose. Biochim Biophys Acta Biomembr 2017. [PMID: 28648676 DOI: 10.1016/j.bbamem.2017.06.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The rate of glucose influx to skeletal muscles is determined primarily by the number of functional units of glucose transporter-4 (GLUT4) in the myotube plasma membrane. The abundance of GLUT4 in the plasma membrane is tightly regulated by insulin or contractile activity, which employ distinct pathways to translocate GLUT4-rich vesicles from intracellular compartments. Various studies have indicated that GLUT4 intrinsic activity is also regulated by conformational changes and/or interactions with membrane components and intracellular proteins in the vicinity of the plasma membrane. Here we show that the non-metabolizable glucose analog 3-O-methyl-d-glucose (MeGlc) augmented the rate of hexose transport into myotubes by increasing GLUT4 intrinsic activity without altering the content of the transporter in the plasma membrane. This effect was not a consequence of ATP depletion or hyperosmolar stress and did not involve Akt/PKB or AMPK signal transduction pathways. MeGlc reduced the inhibitory potency (increased Ki) of indinavir, a selective inhibitor of GLUT4, in a dose-dependent manner. Kinetic analyses indicate that MeGlc induced changes in GLUT4 or GLUT4 complexes within the plasma membrane, which enhanced the hexose transport activity and reduced the potency of indinavir inhibition. Finally, we present a simple kinetic analysis for screening and discovering low molecular weight compounds that augment GLUT4 activity.
Collapse
Affiliation(s)
- Ofer Shamni
- Department of Nuclear Medicine, the Hebrew University-Hadassah Medical Center, Jerusalem 9112001, Israel; Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
| | - Guy Cohen
- The Skin Research Institute, The Dead-Sea & Arava Science Center, Israel; Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
| | - Arie Gruzman
- Division of Medicinal Chemistry, Dept. of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel; Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel
| | - Hilal Zaid
- Al-Qasemi Research Center, Al-Qasemi Academy, Baqa-El-Gharbia 3010000, Israel; Program in Cell Biology, Hospital for Sick Children, Toronto, OT M5G 1XB, Canada
| | - Amira Klip
- Program in Cell Biology, Hospital for Sick Children, Toronto, OT M5G 1XB, Canada
| | - Erol Cerasi
- Endocrinology and Metabolism Service, Department of Internal Medicine, The Hebrew University-Hadassah Medical Center, Jerusalem 9112001, Israel
| | - Shlomo Sasson
- Institute for Drug Research, Section of Pharmacology, Diabetes Research Unit, Faculty of Medicine, The Hebrew University, Jerusalem 9112102, Israel.
| |
Collapse
|
29
|
Munder A, Israel LL, Kahremany S, Ben-Shabat-Binyamini R, Zhang C, Kolitz-Domb M, Viskind O, Levine A, Senderowitz H, Chessler S, Lellouche JP, Gruzman A. Mimicking Neuroligin-2 Functions in β-Cells by Functionalized Nanoparticles as a Novel Approach for Antidiabetic Therapy. ACS Appl Mater Interfaces 2017; 9:1189-1206. [PMID: 28045486 PMCID: PMC6035049 DOI: 10.1021/acsami.6b10568] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Indexed: 05/16/2023]
Abstract
Both pancreatic β-cell membranes and presynaptic active zones of neurons include in their structures similar protein complexes, which are responsible for mediating the secretion of bioactive molecules. In addition, these membrane-anchored proteins regulate interactions between neurons and guide the formation and maturation of synapses. These proteins include the neuroligins (e.g., NL-2) and their binding partners, the neurexins. The insulin secretion and maturation of β-cells is known to depend on their 3-dimensional (3D) arrangement. It was also reported that both insulin secretion and the proliferation rates of β-cells increase when cells are cocultured with clusters of NL-2. Use of full-length NL-2 or even its exocellular domain as potential β-cell functional enhancers is limited by the biostability and bioavailability issues common to all protein-based therapeutics. Thus, based on molecular modeling approaches, a short peptide with the potential ability to bind neurexins was derived from the NL-2 sequence. Here, we show that the NL-2-derived peptide conjugates onto innovative functional maghemite (γ-Fe2O3)-based nanoscale composite particles enhance β-cell functions in terms of glucose-stimulated insulin secretion and protect them under stress conditions. Recruiting the β-cells' "neuron-like" secretory machinery as a target for diabetes treatment use has never been reported before. Such nanoscale composites might therefore provide a unique starting point for designing a novel class of antidiabetic therapeutic agents that possess a unique mechanism of action.
Collapse
Affiliation(s)
- Anna Munder
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Liron L. Israel
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
- Nanomaterials Research Center, Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Shirin Kahremany
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Rina Ben-Shabat-Binyamini
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
- Nanomaterials Research Center, Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Charles Zhang
- Division of Endocrinology, Diabetes & Metabolism, Department of Medicine, University of California, Irvine, California, United States
| | - Michal Kolitz-Domb
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
- Nanomaterials Research Center, Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Olga Viskind
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Anna Levine
- The Scientific Equipment Center, Faculty of Biological Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Hanoch Senderowitz
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Steven Chessler
- Division of Endocrinology, Diabetes & Metabolism, Department of Medicine, University of California, Irvine, California, United States
| | - Jean-Paul Lellouche
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
- Nanomaterials Research Center, Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| |
Collapse
|
30
|
Ben-Hail D, Begas-Shvartz R, Shalev M, Shteinfer-Kuzmine A, Gruzman A, Reina S, De Pinto V, Shoshan-Barmatz V. Novel Compounds Targeting the Mitochondrial Protein VDAC1 Inhibit Apoptosis and Protect against Mitochondrial Dysfunction. J Biol Chem 2016; 291:24986-25003. [PMID: 27738100 DOI: 10.1074/jbc.m116.744284] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [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: 06/18/2016] [Revised: 10/10/2016] [Indexed: 12/13/2022] Open
Abstract
Apoptosis is thought to play a critical role in several pathological processes, such as neurodegenerative diseases (i.e. Parkinson's and Alzheimer's diseases) and various cardiovascular diseases. Despite the fact that apoptotic mechanisms are well defined, there is still no substantial therapeutic strategy to stop or even slow this process. Thus, there is an unmet need for therapeutic agents that are able to block or slow apoptosis in neurodegenerative and cardiovascular diseases. The outer mitochondrial membrane protein voltage-dependent anion channel 1 (VDAC1) is a convergence point for a variety of cell survival and death signals, including apoptosis. Recently, we demonstrated that VDAC1 oligomerization is involved in mitochondrion-mediated apoptosis. Thus, VDAC1 oligomerization represents a prime target for agents designed to modulate apoptosis. Here, high-throughput compound screening and medicinal chemistry were employed to develop compounds that directly interact with VDAC1 and prevent VDAC1 oligomerization, concomitant with an inhibition of apoptosis as induced by various means and in various cell lines. The compounds protected against apoptosis-associated mitochondrial dysfunction, restoring dissipated mitochondrial membrane potential, and thus cell energy and metabolism, decreasing reactive oxidative species production, and preventing detachment of hexokinase bound to mitochondria and disruption of intracellular Ca2+ levels. Thus, this study describes novel drug candidates with a defined mechanism of action that involves inhibition of VDAC1 oligomerization, apoptosis, and mitochondrial dysfunction. The compounds VBIT-3 and VBIT-4 offer a therapeutic strategy for treating different diseases associated with enhanced apoptosis and point to VDAC1 as a promising target for therapeutic intervention.
Collapse
Affiliation(s)
- Danya Ben-Hail
- From the Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Racheli Begas-Shvartz
- From the Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Moran Shalev
- From the Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Shteinfer-Kuzmine
- From the Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Arie Gruzman
- the Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel, and
| | - Simona Reina
- the Departments of Biomedicine and Biotechnology and.,Chemical Sciences, National Institute for Biomembranes and Biosystems, Section of Catania, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Vito De Pinto
- the Departments of Biomedicine and Biotechnology and
| | - Varda Shoshan-Barmatz
- From the Department of Life Sciences and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel,
| |
Collapse
|
31
|
Zer Aviv P, Shubely M, Moskovits Y, Viskind O, Albeck A, Vertommen D, Ruthstein S, Shokhen M, Gruzman A. A New Oxopiperazin-Based Peptidomimetic Molecule Inhibits Prostatic Acid Phosphatase Secretion and Induces Prostate Cancer Cell Apoptosis. ChemistrySelect 2016. [DOI: 10.1002/slct.201600987] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Pinchas Zer Aviv
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Moran Shubely
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Yoni Moskovits
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Olga Viskind
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Amnon Albeck
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Didier Vertommen
- de Duve Institute; Université catholique de Louvain; Brussels 1200 Belgium
| | - Sharon Ruthstein
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Michael Shokhen
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| | - Arie Gruzman
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 5290002 Israel
| |
Collapse
|
32
|
Munder A, Moskovitz Y, Redko B, Levy AR, Ruthstein S, Gellerman G, Gruzman A. Antiproliferative Effect of Novel Aminoacridine-based Compounds. Med Chem 2016; 11:373-82. [PMID: 25524547 DOI: 10.2174/1573406411666141217110946] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 12/04/2014] [Accepted: 12/14/2014] [Indexed: 11/22/2022]
Abstract
We tested the antiproliferative activity and mechanism of the action of several novel aminoacridine derivatives. Six different cancer cell lines were used to evaluate the potential cytotoxic effect of eleven aminoacridine-based molecules. A standard MTT assay was used for cell bioavailability analysis. Additionally, the potential cytotoxic effect of the tested compounds on non-cancer cells was investigated in rat skeletal muscle myotubes (L6) and in bovine aortic smooth muscle cells. In order to investigate whether the DNA binding activity of tested compounds correlated with their cytotoxic effect, circular dichroism (CD) measurement and DNA T4 ligase assay were performed. Finally, the potential mutagenic activity of the lead compound 5 was investigated. The cytotoxic effect of compound 5 in cancer cells was obtained in lower concentrations than the well-known: 9- aminoacridine based drug, amsacrine. The lead compound binds to DNA, but in a different mode than the parent molecules. Additionally, compound 5 was not cytotoxic in the effective range of concentrations in non-cancer cells. In identical concentrations, the parent compound (9-aminoacridine) and amsacrine were extremely toxic for both types of these normal cells. Finally, based on CD measurement and T4 ligase assay, it was confirmed that 5 binds to DNA but in different from the parent compounds manner. Important to mention, that compound 5 might have increased mutagenic activity which must be verified in vivo. Based on these in vitro results, we conclude that 5 is a more potent and more selective antiprolifirative compound than amsacrine. Compound 5 was also more effective in HepG2 and P-12 cells. Thus, 5 is suitable for future in vivo biological evaluation and its structure might be used as a basis for developing novel anticancer drugs.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Arie Gruzman
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan 52900, Israel.
| |
Collapse
|
33
|
Eckshtain-Levi M, Lavi R, Yufit DS, Daniel B, Green O, Fleker O, Richman M, Rahimipour S, Gruzman A, Benisvy L. A versatile water-soluble chelating and radical scavenging platform. Chem Commun (Camb) 2016; 52:2350-3. [DOI: 10.1039/c5cc08198j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The reported water-soluble, non-cytotoxic phenol-diamide compound, 1OH, is capable of both, trapping ROS species and chelating Cu(ii)/Fe(iii) ions; thereby inducing a protective effect against ROS induced cell death.
Collapse
Affiliation(s)
| | - Ronit Lavi
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | | | - Bareket Daniel
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Omer Green
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Ohad Fleker
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Michal Richman
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Shai Rahimipour
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Arie Gruzman
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| | - Laurent Benisvy
- Department of Chemistry
- Bar-Ilan University
- Ramat Gan 52900
- Israel
| |
Collapse
|
34
|
Weintraub S, Moskovitz Y, Fleker O, Levy AR, Meir A, Ruthstein S, Benisvy L, Gruzman A. SOD mimetic activity and antiproliferative properties of a novel tetra nuclear copper (II) complex. J Biol Inorg Chem 2015; 20:1287-98. [PMID: 26547749 DOI: 10.1007/s00775-015-1307-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 06/24/2015] [Accepted: 10/21/2015] [Indexed: 01/22/2023]
Abstract
The search for novel anticancer therapeutic agents is an urgent and important issue in medicinal chemistry. Here, we report on the biological activity of the copper-based bioinorganic complex Cu4 (2,4-di-tert-butyl-6-(1H-imidazo- [1, 10] phenanthrolin-2-yl)phenol)4]·10 CH3CN (2), which was tested in rat L6 myotubes, mouse NSC-34 motor neurone-like cells, and HepG-2 human liver carcinoma. Upon 96 h incubation, 2 exhibited a significant cytotoxic effect on all three types of cells via activation of two cell death mechanisms (apoptosis and necrosis). Complex 2 exhibited better potency and efficacy than the canonical cytotoxic drug cisplatin. Moreover, during shorter incubations, complex 2 demonstrated a significant SOD mimetic activity, and it was more effective and more potent than the well-known SOD mimetic TEMPOL. In addition, complex 2 was able to interact with DNA and, cleave DNA in the presence of sodium ascorbate. This study shows the potential of using polynuclear redox active compounds for developing novel anticancer drugs through SOD-mimetic redox pathways.
Collapse
Affiliation(s)
- Sagiv Weintraub
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Yoni Moskovitz
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Ohad Fleker
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Ariel R Levy
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Aviv Meir
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Sharon Ruthstein
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Laurent Benisvy
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel.
| | - Arie Gruzman
- Department of Chemistry, Bar-Ilan University, 5290002, Ramat Gan, Israel.
| |
Collapse
|
35
|
Getter T, Zaks I, Barhum Y, Ben-Zur T, Böselt S, Gregoire S, Viskind O, Shani T, Gottlieb H, Green O, Shubely M, Senderowitz H, Israelson A, Kwon I, Petri S, Offen D, Gruzman A. A chemical chaperone-based drug candidate is effective in a mouse model of amyotrophic lateral sclerosis (ALS). ChemMedChem 2015; 10:850-61. [PMID: 25772747 DOI: 10.1002/cmdc.201500045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 12/11/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by the selective death of motor neurons and skeletal muscle atrophy. The majority of ALS cases are acquired spontaneously, with inherited disease accounting for only 10 % of all cases. Recent studies provide compelling evidence that aggregates of misfolded proteins underlie both types of ALS. Small molecules such as artificial chaperones can prevent or even reverse the aggregation of proteins associated with various human diseases. However, their very high active concentration (micromolar range) severely limits their utility as drugs. We synthesized several ester and amide derivatives of chemical chaperones. The lead compound 14, 3-((5-((4,6-dimethylpyridin-2-yl)methoxy)-5-oxopentanoyl)oxy)-N,N-dimethylpropan-1-amine oxide shows, in the micromolar concentration range, both neuronal and astrocyte protective effects in vitro; at daily doses of 10 mg kg(-1) 14 improved the neurological functions and delayed body weight loss in ALS mice. Members of this new chemical chaperone derivative class are strong candidates for the development of new drugs for ALS patients.
Collapse
Affiliation(s)
- Tamar Getter
- Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat Gan, 529002 (Israel)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Kahremany S, Livne A, Gruzman A, Senderowitz H, Sasson S. Activation of PPARδ: from computer modelling to biological effects. Br J Pharmacol 2014; 172:754-70. [PMID: 25255770 DOI: 10.1111/bph.12950] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 09/13/2014] [Accepted: 09/18/2014] [Indexed: 12/18/2022] Open
Abstract
PPARδ is a ligand-activated receptor that dimerizes with another nuclear receptor of the retinoic acid receptor family. The dimers interact with other co-activator proteins and form active complexes that bind to PPAR response elements and promote transcription of genes involved in lipid metabolism. It appears that various natural fatty acids and their metabolites serve as endogenous activators of PPARδ; however, there is no consensus in the literature on the nature of the prime activators of the receptor. In vitro and cell-based assays of PPARδ activation by fatty acids and their derivatives often produce conflicting results. The search for synthetic and selective PPARδ agonists, which may be pharmacologically useful, is intense. Current rational modelling used to obtain such compounds relies mostly on crystal structures of synthetic PPARδ ligands with the recombinant ligand binding domain (LBD) of the receptor. Here, we introduce an original computational prediction model for ligand binding to PPARδ LBD. The model was built based on EC50 data of 16 ligands with available crystal structures and validated by calculating binding probabilities of 82 different natural and synthetic compounds from the literature. These compounds were independently tested in cell-free and cell-based assays for their capacity to bind or activate PPARδ, leading to prediction accuracy of between 70% and 93% (depending on ligand type). This new computational tool could therefore be used in the search for natural and synthetic agonists of the receptor.
Collapse
Affiliation(s)
- Shirin Kahremany
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | | | | | | | | |
Collapse
|
37
|
Pasternak L, Meltzer-Mats E, Babai-Shani G, Cohen G, Viskind O, Eckel J, Cerasi E, Sasson S, Gruzman A. Benzothiazole derivatives augment glucose uptake in skeletal muscle cells and stimulate insulin secretion from pancreatic β-cells via AMPK activation. Chem Commun (Camb) 2014; 50:11222-5. [DOI: 10.1039/c4cc03310h] [Citation(s) in RCA: 16] [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] [Indexed: 01/31/2023]
Abstract
Development of the unique bi-functional AMPK activators (glucose uptake and insulin secretion enhancers) for potential antidiabetic treatment.
Collapse
Affiliation(s)
- L. Pasternak
- Department of Pharmacology
- Institute for Drug Research
- School of Pharmacy
- Faculty of Medicine
- The Hebrew University of Jerusalem
| | - E. Meltzer-Mats
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat-Gan, Israel
| | - G. Babai-Shani
- Department of Pharmacology
- Institute for Drug Research
- School of Pharmacy
- Faculty of Medicine
- The Hebrew University of Jerusalem
| | - G. Cohen
- Department of Pharmacology
- Institute for Drug Research
- School of Pharmacy
- Faculty of Medicine
- The Hebrew University of Jerusalem
| | - O. Viskind
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat-Gan, Israel
| | - J. Eckel
- German Diabetes Center
- Integrative Physiology
- Paul-Langerhans-Group
- Düsseldorf, Germany
| | - E. Cerasi
- The Endocrinology and Metabolism Service
- Department of Medicine
- Hadassah-Hebrew University Medical Center
- Jerusalem, Israel
| | - S. Sasson
- Department of Pharmacology
- Institute for Drug Research
- School of Pharmacy
- Faculty of Medicine
- The Hebrew University of Jerusalem
| | - A. Gruzman
- Department of Chemistry
- Faculty of Exact Sciences
- Bar-Ilan University
- Ramat-Gan, Israel
| |
Collapse
|
38
|
Shimanovich U, Munder A, Azoia NG, Cavaco-Paulo A, Gruzman A, Knowles TPJ, Gedanken A. Sonochemically-induced spectral shift as a probe of green fluorescent protein release from nano capsules. RSC Adv 2014. [DOI: 10.1039/c3ra47915c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
39
|
Shapira R, Rudnick S, Daniel B, Viskind O, Aisha V, Richman M, Ayasolla KR, Perelman A, Chill JH, Gruzman A, Rahimipour S. Multifunctional Cyclic d,l-α-Peptide Architectures Stimulate Non-Insulin Dependent Glucose Uptake in Skeletal Muscle Cells and Protect Them Against Oxidative Stress. J Med Chem 2013; 56:6709-18. [DOI: 10.1021/jm4005225] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Renana Shapira
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Safra Rudnick
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Bareket Daniel
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Olga Viskind
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Vered Aisha
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Michal Richman
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | | | - Alex Perelman
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Jordan H. Chill
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Arie Gruzman
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Shai Rahimipour
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
| |
Collapse
|
40
|
Daniel B, Green O, Viskind O, Gruzman A. Riluzole increases the rate of glucose transport in L6 myotubes and NSC-34 motor neuron-like cells via AMPK pathway activation. Amyotroph Lateral Scler Frontotemporal Degener 2013; 14:434-43. [DOI: 10.3109/21678421.2013.808226] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
41
|
Meltzer-Mats E, Babai-Shani G, Pasternak L, Uritsky N, Getter T, Viskind O, Eckel J, Cerasi E, Senderowitz H, Sasson S, Gruzman A. Synthesis and mechanism of hypoglycemic activity of benzothiazole derivatives. J Med Chem 2013; 56:5335-50. [PMID: 23750537 DOI: 10.1021/jm4001488] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Adenosine 5'-monophosphate activated protein kinase (AMPK) has emerged as a major potential target for novel antidiabetic drugs. We studied the structure of 2-chloro-5-((Z)-((E)-5-((5-(4,5-dimethyl-2-nitrophenyl)furan-2-yl)methylene)-4-oxothiazolidin-2-ylidene)amino)benzoic acid (PT-1), which attenuates the autoinhibition of the enzyme AMPK, for the design and synthesis of different benzothiazoles with potential antidiabetic activity. We synthesized several structurally related benzothiazole derivatives that increased the rate of glucose uptake in L6 myotubes in an AMPK-dependent manner. One compound, 2-(benzo[d]thiazol-2-ylmethylthio)-6-ethoxybenzo[d]thiazole (34), augmented the rate of glucose uptake up to 2.5-fold compared with vehicle-treated cells and up to 1.1-fold compared to PT-1. Concomitantly, it elevated the abundance of GLUT4 in the plasma membrane of the myotubes and activated AMPK. Subcutaneous administration of 34 to hyperglycemic Kuo Kondo rats carrying the Ay-yellow obese gene (KKAy) mice lowered blood glucose levels toward the normoglycemic range. In accord with its activity, compound 34 showed a high fit value to a pharmacophore model derived from the PT-1.
Collapse
Affiliation(s)
- Ella Meltzer-Mats
- Division of Medicinal Chemistry, Department of Chemistry, Faculty of Exact Sciences, Bar Ilan University , Ramat Gan, 5290002, Israel
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Gruzman A, Elgart A, Viskind O, Billauer H, Dotan S, Cohen G, Mishani E, Hoffman A, Cerasi E, Sasson S. Antihyperglycaemic activity of 2,4:3,5-dibenzylidene-D-xylose-diethyl dithioacetal in diabetic mice. J Cell Mol Med 2012; 16:594-604. [PMID: 21564514 PMCID: PMC3822934 DOI: 10.1111/j.1582-4934.2011.01340.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 12/25/2022] Open
Abstract
We have recently generated lipophilic D-xylose derivatives that increase the rate of glucose uptake in cultured skeletal muscle cells in an AMP-activated protein kinase (AMPK)-dependent manner. The derivative 2,4:3,5-dibenzylidene-D-xylose-diethyl dithioacetal (EH-36) stimulated the rate of glucose transport by increasing the abundance of glucose transporter-4 in the plasma membrane of cultured myotubes. The present study aimed at investigating potential antihyperglycaemic effects of EH-36 in animal models of diabetes. Two animal models were treated subcutaneously with EH-36: streptozotocin-induced diabetes in C57BL/6 mice (a model of insulin-deficient type 1 diabetes), and spontaneously diabetic KKAy mice (Kuo Kondo rats carrying the A(y) yellow obese gene; insulin-resistant type 2 diabetes). The in vivo biodistribution of glucose in control and treated mice was followed with the glucose analogue 2-deoxy-2-[(18) F]-D-glucose; the rate of glucose uptake in excised soleus muscles was measured with [(3) H]-2-deoxy-D-glucose. Pharmacokinetic parameters were determined by non-compartmental analysis of the in vivo data. The effective blood EH-36 concentration in treated animals was 2 μM. It reduced significantly the blood glucose levels in both types of diabetic mice and also corrected the typical compensatory hyperinsulinaemia of KKAy mice. EH-36 markedly increased glucose transport in vivo into skeletal muscle and heart, but not to adipose tissue. This stimulatory effect was mediated by Thr(172) -phosphorylation in AMPK. Biochemical tests in treated animals and acute toxicological examinations showed that EH-36 was well tolerated and not toxic to the mice. These findings indicate that EH-36 is a promising prototype molecule for the development of novel antidiabetic drugs.
Collapse
Affiliation(s)
- Arie Gruzman
- Department of Pharmacology, Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Braverman S, Cherkinsky M, Kalendar Y, Gottlieb HE, Mats EM, Gruzman A, Goldberg I, Sprecher M. One-pot three-component preparation of novel selenium-containing spiroketals. J PHYS ORG CHEM 2012. [DOI: 10.1002/poc.2952] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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)
- Samuel Braverman
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Marina Cherkinsky
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Yuliya Kalendar
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Hugo E. Gottlieb
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Ella Meltzer Mats
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Arie Gruzman
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| | - Israel Goldberg
- School of Chemistry; Tel-Aviv University; Ramat-Aviv 69978 Israel
| | - Milon Sprecher
- Department of Chemistry; Bar-Ilan University; Ramat-Gan 52900 Israel
| |
Collapse
|
44
|
Klein M, Pulidindi IN, Perkas N, Meltzer-Mats E, Gruzman A, Gedanken A. Direct production of glucose from glycogen under microwave irradiation. RSC Adv 2012. [DOI: 10.1039/c2ra21066e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
45
|
Riahi Y, Sin-Malia Y, Cohen G, Alpert E, Gruzman A, Eckel J, Staels B, Guichardant M, Sasson S. The natural protective mechanism against hyperglycemia in vascular endothelial cells: roles of the lipid peroxidation product 4-hydroxydodecadienal and peroxisome proliferator-activated receptor delta. Diabetes 2010; 59:808-18. [PMID: 20107107 PMCID: PMC2844828 DOI: 10.2337/db09-1207] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Vascular endothelial cells (VECs) downregulate their rate of glucose uptake in response to hyperglycemia by decreasing the expression of their typical glucose transporter GLUT-1. Hitherto, we discovered critical roles for the protein calreticulin and the arachidonic acid-metabolizing enzyme 12-lipoxygenase in this autoregulatory process. The hypothesis that 4-hydroxydodeca-(2E,6Z)-dienal (4-HDDE), the peroxidation product of 12-lipoxygenase, mediates this downregulatory mechanism by activating peroxisome proliferator-activated receptor (PPAR) delta was investigated. RESEARCH DESIGN AND METHODS Effects of 4-HDDE and PPARdelta on the glucose transport system and calreticulin expression in primary bovine aortic endothelial cells were evaluated by pharmacological and molecular interventions. RESULTS Using GW501516 (PPARdelta agonist) and GSK0660 (PPARdelta antagonist), we discovered that high-glucose-induced downregulation of the glucose transport system in VECs is mediated by PPARdelta. A PPAR-sensitive luciferase reporter assay in VECs revealed that high glucose markedly increased luciferase activity, while GSK0660 abolished it. High-performance liquid chromatography analysis showed that high-glucose incubation substantially elevated the generation of 4-HDDE in VECs. Treatment of VECs, exposed to normal glucose, with 4-HDDE mimicked high glucose and downregulated the glucose transport system and increased calreticulin expression. Like high glucose, 4-HDDE significantly activated PPARdelta in cells overexpressing human PPAR (hPPAR)delta but not hPPARalpha, -gamma1, or -gamma2. Moreover, silencing of PPARdelta prevented high-glucose-dependent alterations in GLUT-1 and calreticulin expression. Finally, specific binding of PPARdelta to a PPAR response element in the promoter region of the calreticulin gene was identified by utilizing a specific chromatin immunoprecipitation assay. CONCLUSIONS Collectively, our data show that 4-HDDE plays a central role in the downregulation of glucose uptake in VECs by activating PPARdelta.
Collapse
Affiliation(s)
- Yael Riahi
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - Yoav Sin-Malia
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - Guy Cohen
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - Evgenia Alpert
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - Arie Gruzman
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | - Juergen Eckel
- Institute of Clinical Biochemistry and Pathobiochemistry, the German Diabetes Center, Düsseldorf, Germany
| | - Bart Staels
- Université Lille Nord de France, Institut National de la Santé et de la Recherche Médicale (INSERM), U545, UDSL, Institut Pasteur de Lille, Lille, France
| | - Michel Guichardant
- Université de Lyon, INSERM UMR870, Insa-Lyon, RMND/IMBL, Inra 1235, Villeurbanne, France
| | - Shlomo Sasson
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
- Corresponding author: Shlomo Sasson,
| |
Collapse
|
46
|
Gruzman A, Babai G, Sasson S. Adenosine Monophosphate-Activated Protein Kinase (AMPK) as a New Target for Antidiabetic Drugs: A Review on Metabolic, Pharmacological and Chemical Considerations. Rev Diabet Stud 2009; 6:13-36. [PMID: 19557293 DOI: 10.1900/rds.2009.6.13] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [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: 12/18/2022] Open
Abstract
In view of the epidemic nature of type 2 diabetes and the substantial rate of failure of current oral antidiabetic drugs the quest for new therapeutics is intensive. The adenosine monophosphate-activated protein kinase (AMPK) is an important regulatory protein for cellular energy balance and is considered a master switch of glucose and lipid metabolism in various organs, especially in skeletal muscle and liver. In skeletal muscles, AMPK stimulates glucose transport and fatty acid oxidation. In the liver, it augments fatty acid oxidation and decreases glucose output, cholesterol and triglyceride synthesis. These metabolic effects induced by AMPK are associated with lowering blood glucose levels in hyperglycemic individuals. Two classes of oral antihyperglycemic drugs (biguanidines and thiazolidinediones) have been shown to exert some of their therapeutic effects by directly or indirectly activating AMPK. However, side effects and an acquired resistance to these drugs emphasize the need for the development of novel and efficacious AMPK activators. We have recently discovered a new class of hydrophobic D-xylose derivatives that activates AMPK in skeletal muscles in a non insulin-dependent manner. One of these derivatives (2,4;3,5-dibenzylidene-D-xylose-diethyl-dithioacetal) stimulates the rate of hexose transport in skeletal muscle cells by increasing the abundance of glucose transporter-4 (GLUT-4) in the plasma membrane through activation of AMPK. This compound reduces blood glucose levels in diabetic mice and therefore offers a novel strategy of therapeutic intervention strategy in type 2 diabetes. The present review describes various classes of chemically-related compounds that activate AMPK by direct or indirect interactions and discusses their potential for candidate antihyperglycemic drug development.
Collapse
Affiliation(s)
- Arie Gruzman
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem 91120, Israel
| | | | | |
Collapse
|
47
|
Gruzman A, Shamni O, Ben Yakir M, Sandovski D, Elgart A, Alpert E, Cohen G, Hoffman A, Katzhendler Y, Cerasi E, Sasson S. Novel D-xylose derivatives stimulate muscle glucose uptake by activating AMP-activated protein kinase alpha. J Med Chem 2009; 51:8096-108. [PMID: 19049348 DOI: 10.1021/jm8008713] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Type 2 diabetes mellitus has reached epidemic proportions; therefore, the search for novel antihyperglycemic drugs is intense. We have discovered that D-xylose increases the rate of glucose transport in a non-insulin-dependent manner in rat and human myotubes in vitro. Due to the unfavorable pharmacokinetic properties of D-xylose we aimed at synthesizing active derivatives with improved parameters. Quantitative structure-activity relationship analysis identified critical hydroxyl groups in D-xylose. These data were used to synthesize various hydrophobic derivatives of D-xylose of which compound 19 the was most potent compound in stimulating the rate of hexose transport by increasing the abundance of glucose transporter-4 in the plasma membrane of myotubes. This effect resulted from the activation of AMP-activated protein kinase without recruiting the insulin transduction mechanism. These results show that lipophilic D-xylose derivatives may serve as prototype molecules for the development of novel antihyperglycemic drugs for the treatment of diabetes.
Collapse
Affiliation(s)
- Arie Gruzman
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, 91120 Jerusalem, Israel
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Cohen G, Riahi Y, Alpert E, Gruzman A, Sasson S. The roles of hyperglycaemia and oxidative stress in the rise and collapse of the natural protective mechanism against vascular endothelial cell dysfunction in diabetes. Arch Physiol Biochem 2007; 113:259-67. [PMID: 18158647 DOI: 10.1080/13813450701783513] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Vascular endothelial cell (VEC) dysfunction in diabetes has been associated with hyperglycaemia-induced intra- and extracellular glycation of proteins and to overproduction of glucose-derived free radicals. VEC protect their intracellular environment against an increased influx of glucose in face of hyperglycaemia by reducing the expression and plasma membrane abundance of their glucose transporter-1 (GLUT-1). We investigated the hypothesis that glucose-derived free radicals induce this down-regulatory mechanism in VEC, but proved the contrary. In fact, pro-oxidants significantly increased the expression and plasma membrane abundance of GLUT-1 and the rate of glucose transport in VEC while abolishing high-glucose-induced down-regulation of the hexose transport system. The resulting uncontrolled influx of glucose followed by overproduction of glucose-derived ROS further up-regulates the rate of glucose transport, and vice versa. This perpetuating glycoxidative stress finally leads to the collapse of the auto-regulatory protective mechanism and accelerates the development of dysfunctional endothelium in blood vessels.
Collapse
Affiliation(s)
- G Cohen
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, The Hebrew University, Jerusalem, Israel
| | | | | | | | | |
Collapse
|
49
|
Gruzman A, Wood WL, Alpert E, Prasad MD, Miller RG, Rothstein JD, Bowser R, Hamilton R, Wood TD, Cleveland DW, Lingappa VR, Liu J. Common molecular signature in SOD1 for both sporadic and familial amyotrophic lateral sclerosis. Proc Natl Acad Sci U S A 2007; 104:12524-9. [PMID: 17636119 PMCID: PMC1941502 DOI: 10.1073/pnas.0705044104] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a devastating motor neuron degenerative disease whose etiology and pathogenesis remain poorly understood. Most cases of ALS ( approximately 90%) are sporadic (SALS), occurring in the absence of genetic associations. Approximately 20% of familial ALS (FALS) cases are due to known mutations in the copper, zinc superoxide dismutase (SOD1) gene. Molecular evidence for a common pathogenesis of SALS and FALS has remained elusive. Here we use covalent chemical modification to reveal an attribute of spinal cord SOD1 common to both SOD1-linked FALS and SALS, but not present in normal or disease-affected tissues from other neurodegenerative diseases, including Alzheimer's, Parkinson's, and Huntington's diseases and spinal muscular atrophy, a non-ALS motor neuron disease. Biotinylation reveals a 32-kDa, covalently cross-linked SOD1-containing protein species produced not only in FALS caused by SOD1 mutation, but also in SALS. These studies use chemical modification as a novel tool for the detection of a disease-associated biomarker. Our results identify a shared molecular event involving a known target gene and suggest a common step in the pathogenesis between SALS and FALS.
Collapse
Affiliation(s)
| | - William L. Wood
- Department of Chemistry, Natural Sciences Complex, University at Buffalo, State University of New York, Buffalo, NY 14260
| | | | | | - Robert G. Miller
- Department of Neurology, California Pacific Medical Center, San Francisco, CA 94115
| | | | - Robert Bowser
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Ronald Hamilton
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
| | - Troy D. Wood
- Department of Chemistry, Natural Sciences Complex, University at Buffalo, State University of New York, Buffalo, NY 14260
| | - Don W. Cleveland
- Ludwig Institute for Cancer Research, Departments of Medicine and Neuroscience, University of California at San Diego, La Jolla, CA 92093; and
- **To whom correspondence may be addressed. E-mail: or
| | | | - Jian Liu
- Department of Neuroscience, California Pacific Medical Center Research Institute, San Francisco, CA 94107
- **To whom correspondence may be addressed. E-mail: or
| |
Collapse
|
50
|
Alpert E, Gruzman A, Tennenbaum T, Sasson S. Selective cyclooxygenase-2 inhibitors stimulate glucose transport in L6 myotubes in a protein kinase Cδ-dependent manner. Biochem Pharmacol 2007; 73:368-77. [PMID: 17098211 DOI: 10.1016/j.bcp.2006.10.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2006] [Revised: 10/06/2006] [Accepted: 10/09/2006] [Indexed: 11/24/2022]
Abstract
Selective inhibitors of cyclooxygenase-2 (prostaglandin-endoperoxide synthase-2; COX-2) augment the rate of hexose uptake in myotubes by recruiting glucose transporter-4 (GLUT-4) to the plasma membrane in an insulin- and AMPKalpha-independent manner [Alpert E, Gruzman A, Lardi-Studler B, Cohen G, Reich R, Sasson S. Cyclooxygenase-2 (PTGS2) inhibitors augment the rate of hexose transport in L6 myotubes in an insulin- and AMPKalpha-independent manner. Diabetologia 2006;49:562-70]. We aimed at elucidating the molecular interactions that mediate this effect of COX-2 inhibitors in L6 myotubes. The effects of the inhibitors niflumic acid, nimesulide and rofecoxib on activities and phosphorylation state of key proteins in the insulin transduction pathway were determined. These inhibitors did not induce specific tyrosine phosphorylation in IRS-1, could not assemble a functional IRS-PI3K-PKB/Akt complex and did not activate GSK3alpha/beta, JNK1/2, ERK1/2, p38-MAPK or c-Cbl by site-specific phosphorylation(s). Yet, like insulin, they activated mTOR and induced downstream threonine phosphorylation in p70S6K and 4EBP1. However, rapamycin, which inhibits mTOR enzymatic activity, did not interfere with COX-2 inhibitor-induced stimulation of hexose uptake in myotube. Thus, mTOR activation was not required for COX-2 inhibitor-dependent augmentation of hexose transport in myotubes. Because PKCdelta has also been shown to activate mTOR, we asked whether COX-2 inhibitors activate mTOR by a prior activation of PKCdelta. Indeed, all three inhibitors induced tyrosine phosphorylation in PKCdelta and stimulated its kinase activity. Moreover, pharmacological inhibition of PKCdelta or the expression of a dominant-negative form of PKCdelta in myotubes completely abolished COX-2 inhibitor-dependent stimulation of hexose uptake. This study shows that selective COX-2 inhibitors activate a unique PKCdelta-dependent pathway to increase GLUT-4 abundance in the plasma membrane of myotubes and augment the rate of hexose transport.
Collapse
Affiliation(s)
- Evgenia Alpert
- Department of Pharmacology, Faculty of Medicine, The Hebrew University, Jerusalem 91120, Israel
| | | | | | | |
Collapse
|