1
|
Monier M, El-Mekabaty A, Elattar KM. Five-membered ring systems with one heteroatom: Synthetic routes, chemical reactivity, and biological properties of furan-carboxamide analogues. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2017.1421227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- M. Monier
- Department of Chemistry, Faculty of Science, Taibah University, Yanbu, KSA
| | - Ahmed El-Mekabaty
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Khaled M. Elattar
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| |
Collapse
|
2
|
Shrestha SK, Kril LM, Green KD, Kwiatkowski S, Sviripa VM, Nickell JR, Dwoskin LP, Watt DS, Garneau-Tsodikova S. Bis(N-amidinohydrazones) and N-(amidino)-N'-aryl-bishydrazones: New classes of antibacterial/antifungal agents. Bioorg Med Chem 2016; 25:58-66. [PMID: 27769670 DOI: 10.1016/j.bmc.2016.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/06/2016] [Accepted: 10/07/2016] [Indexed: 11/18/2022]
Abstract
The emergence of multidrug-resistant bacterial and fungal strains poses a threat to human health that requires the design and synthesis of new classes of antimicrobial agents. We evaluated bis(N-amidinohydrazones) and N-(amidino)-N'-aryl-bishydrazones for their antibacterial and antifungal activities against panels of Gram-positive/Gram-negative bacteria as well as fungi. We investigated their potential to develop resistance against both bacteria and fungi by a multi-step resistance-selection method, explored their potential to induce the production of reactive oxygen species, and assessed their toxicity. In summary, we found that these compounds exhibited broad-spectrum antibacterial and antifungal activities against most of the tested strains with minimum inhibitory concentration (MIC) values ranging from <0.5 to >500μM against bacteria and 1.0 to >31.3μg/mL against fungi; and in most cases, they exhibited either superior or similar antimicrobial activity compared to those of the standard drugs used in the clinic. We also observed minimal emergence of drug resistance to these newly synthesized compounds by bacteria and fungi even after 15 passages, and we found weak to moderate inhibition of the human Ether-à-go-go-related gene (hERG) channel with acceptable IC50 values ranging from 1.12 to 3.29μM. Overall, these studies show that bis(N-amidinohydrazones) and N-(amidino)-N'-aryl-bishydrazones are potentially promising scaffolds for the discovery of novel antibacterial and antifungal agents.
Collapse
Affiliation(s)
- Sanjib K Shrestha
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536-0596, USA
| | - Liliia M Kril
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536-0596, USA; Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536-0509, USA
| | - Keith D Green
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536-0596, USA
| | - Stefan Kwiatkowski
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536-0509, USA; Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY 40536-0093, USA
| | - Vitaliy M Sviripa
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536-0509, USA; Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA
| | - Justin R Nickell
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536-0596, USA
| | - Linda P Dwoskin
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536-0596, USA
| | - David S Watt
- Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536-0509, USA; Center for Pharmaceutical Research and Innovation, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA; Lucille Parker Markey Cancer Center, University of Kentucky, Lexington, KY 40536-0093, USA.
| | - Sylvie Garneau-Tsodikova
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536-0596, USA.
| |
Collapse
|
3
|
Bielawski K, Bielawska A, Poplawska B. Synthesis and Cytotoxic Activity of Novel Amidine Analogues of Bis(2-chloroethyl)amine. Arch Pharm (Weinheim) 2009; 342:484-90. [DOI: 10.1002/ardp.200800231] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
4
|
Bielawska A, Bielawski K, Anchim T. Amidine Analogues of Melphalan: Synthesis, Cytotoxic Activity, and DNA Binding Properties. Arch Pharm (Weinheim) 2007; 340:251-7. [PMID: 17458920 DOI: 10.1002/ardp.200700001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Design, synthesis, and cytotoxic activity of amidine derivatives of melphalan are described and structure-activity relationships are discussed. Evaluation of the cytotoxicity of these compounds employing a MTT assay and inhibition of [(3)H]thymidine incorporation into DNA in both MDA-MB-231 and MCF-7 human breast cancer cells demonstrated that these compounds were more active than melphalan. Data from the ethidium displacement assay showed that these compounds were able to bind in the minor groove-binding mode in AT sequences of DNA. The cytotoxic properties of the amidine analogues of melphalan towards cultured human breast cancer cells correlate with topoisomerase II inhibitory properties but not with DNA-binding properties.
Collapse
Affiliation(s)
- Anna Bielawska
- Department of Medicinal Chemistry and Drug Technology, Medical University of Bialystok, Bialystok, Poland.
| | | | | |
Collapse
|
5
|
Bielawski K, Bielawska A, Sosnowska K, Miltyk W, Winnicka K, Pałka J. Novel amidine analogue of melphalan as a specific multifunctional inhibitor of growth and metabolism of human breast cancer cells. Biochem Pharmacol 2006; 72:320-31. [PMID: 16730667 DOI: 10.1016/j.bcp.2006.04.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2006] [Revised: 04/26/2006] [Accepted: 04/26/2006] [Indexed: 11/26/2022]
Abstract
A novel amidine analogue of melphalan (AB4) was compared to its parent drug, melphalan in respect to cytotoxicity, DNA and collagen biosynthesis in MDA-MB-231 and MCF-7 human breast cancer cells. It was found that AB4 was more active inhibitor of DNA and collagen synthesis as well more cytotoxic agent than melphalan. The topoisomerase I/II inhibition assay indicated that AB4 is a potent catalytic inhibitor of topoisomerase II. Data from the ethidium displacement assay showed that AB4 intercalated into the minor-groove at AT sequences of DNA. The greater potency of AB4 to suppress collagen synthesis was found to be accompanied by a stronger inhibition of prolidase activity and expression compared to melphalan. The phenomenon was related to the inhibition of beta(1)-integrin and IGF-I receptor mediated signaling caused by AB4. The expression of beta(1)-integrin receptor, as well as Sos-1 and phosphorylated MAPK, ERK(1) and ERK(2) but not FAK, Shc, and Grb-2 was significantly decreased in cells incubated for 24h with 20 microM AB4 compared to the control, not treated cells, whereas in the same conditions melphalan did not evoke any changes in expression of all these signaling proteins, as shown by Western immunoblot analysis. These results indicate the amidine analogue of melphalan, AB4 represent multifunctional inhibitor of breast cancer cells growth and metabolism.
Collapse
MESH Headings
- Amidines/chemical synthesis
- Amidines/chemistry
- Amidines/pharmacology
- Animals
- Antineoplastic Agents, Alkylating/chemical synthesis
- Antineoplastic Agents, Alkylating/chemistry
- Antineoplastic Agents, Alkylating/pharmacology
- Blotting, Western
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Collagen/biosynthesis
- DNA Topoisomerases, Type I/metabolism
- DNA, Superhelical/metabolism
- Dipeptidases/metabolism
- Distamycins/pharmacology
- Dose-Response Relationship, Drug
- Humans
- Integrin beta1/metabolism
- Melphalan/analogs & derivatives
- Melphalan/chemical synthesis
- Melphalan/chemistry
- Melphalan/pharmacology
- Molecular Structure
- Netropsin/pharmacology
- Receptor, IGF Type 1/antagonists & inhibitors
- Receptor, IGF Type 1/metabolism
- Thymidine/metabolism
- Topoisomerase I Inhibitors
Collapse
Affiliation(s)
- Krzysztof Bielawski
- Department of Medicinal Chemistry and Drug Technology, Medical University of Białystok, Kilinskiego 1, 15-089 Białystok, Poland.
| | | | | | | | | | | |
Collapse
|
6
|
Bielawska A, Bielawski K, Muszyńska A. Synthesis and biological evaluation of new cyclic amidine analogs of chlorambucil. ACTA ACUST UNITED AC 2004; 59:111-7. [PMID: 14871502 DOI: 10.1016/j.farmac.2003.12.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2003] [Accepted: 12/13/2003] [Indexed: 11/25/2022]
Abstract
A number of novel cyclic amidine analogs of chlorambucil were synthesized and examined for cytotoxicity in breast cancer cell cultures and for inhibition of topoisomerases I and II. Evaluation of the cytotoxicity of these compounds employing a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and inhibition of [(3)H]-thymidine incorporation into DNA in both MDA-MB-231 and MCF-7 breast cancer cells demonstrated that these compounds were more active than chlorambucil. The degree to which these compounds inhibited cell growth breast cancer cells was directly correlated to DNA-binding affinity. These studies indicate that cyclic amidine analogs of chlorambucil are a potent catalytic inhibitor of topoisomerase II but not topoisomerase I. The highest degree of DNA binding and cytotoxicity in both MDA-MB-231 and MCF-7 breast cancer cells was observed for the compound, which possess a 4,5-dihydro-1H-imidazol moiety.
Collapse
Affiliation(s)
- Anna Bielawska
- Department of Medicinal Chemistry and Drug Technology, Medical University of Białystok, Kilińskiego 1, Białystok 15089, Poland.
| | | | | |
Collapse
|