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Meher K, Paithankar H, Hosur RV, Lopus M. Antiproliferative efficacy and mechanism of action of garlic phytochemicals-functionalized gold nanoparticles in triple-negative breast cancer cells. Biomed Mater 2024; 19:035039. [PMID: 38682577 DOI: 10.1088/1748-605x/ad3ff9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/17/2024] [Indexed: 05/01/2024]
Abstract
Fabrication of gold nanoparticles (GNPs) with phytochemicals is an emerging green nanotechnology approach with therapeutic implications. Garlic, known for its culinary and medicinal properties, has been extensively investigated for its anticancer properties. Here, we report a method to substantially enhance the antiproliferative potency of garlic by functionalizing its phytochemicals to GNPs and demonstrate a possible mechanism of action of these nanoparticles in the triple-negative breast cancer cell line, MDA-MB-231. Garlic gold nanoparticles (As-GNPs) were synthesized using garlic extract (As-EX) and gold chloride and characterized using a variety of spectroscopy techniques, and transmission electron microscopy (TEM). Compared to As-EX, which has a negligible effect on the viability of the cells, As-GNPs inhibited cell viability with an IC50of 0.310 ± 0.04 mg ml-1and strongly inhibited the clonogenic and migratory propensities of these cells. As indicated by TEM, the As-GNPs entered the cells via endocytosis and dispersed in the cellular milieu. Since tubulin, the protein involved in cell division, is a verified target for several antiproliferative drugs, we next examined whether the As-GNPs interact with this protein. The As-GNPs showed concentration-dependent binding to purified tubulin, slightly but consistently perturbing its secondary helical integritywithout grossly damaging the tertiary structure of the protein or the net polymer mass of the microtubules, as indicated by a tryptophan-quenching assay, far UV-circular dichroism spectroscopy, anilinonaphthalene sulfonate-binding assay, and polymer mass analysis, respectively. In cells, As-GNPs killed the cancer cells without cell cycle arrest, as evidenced by flow cytometry.
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Affiliation(s)
- Kimaya Meher
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai 400098, India
| | - Harshad Paithankar
- School of Chemical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai 400098, India
| | - Ramakrishna V Hosur
- School of Chemical Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai 400098, India
| | - Manu Lopus
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai 400098, India
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Radha G, Pragyandipta P, Naik PK, Lopus M. Biochemical and in silico analysis of the binding mode of erastin with tubulin. J Biomol Struct Dyn 2024:1-8. [PMID: 38375607 DOI: 10.1080/07391102.2024.2317984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 02/05/2024] [Indexed: 02/21/2024]
Abstract
Erastin (ERN) is a small molecule that induces different forms of cell death. For example, it has been reported to induce ferroptosis by disrupting tubulin subunits that maintain the voltage-dependent anion channels (VDACs) of mitochondria. Although its possible binding to tubulin has been suggested, the fine details of the interaction between ERN and tubulin are poorly understood. Using a combination of biochemical, cell-model and in silico approaches, we elucidate the interactions of ERN with tubulin and their biological manifestations. After confirming ERN's antiproliferative efficacy (IC50, 20 ± 3.2 M) and induction of cell death in the breast cancer cell line MDA-MB-231, the binding interactions of ERN with tubulin were examined. ERN bound to tubulin in a concentration-dependent manner, disorganizing the structural integrity of the protein, as substantiated via the tryptophan-quenching assay and the aniline-naphthalene sulfonate binding assay, respectively. In silico studies based on molecular docking revealed a docking score of -5.863 kcal/mol, suggesting strong binding interactions of ERN with tubulin. Additionally, molecular dynamics simulation and Molecular Mechanics Poisson-Boltzmann Surface Area (MM-PBSA) analyses evinced the binding free energy (ΔGbinding) of -31.235 kcal/mol, substantiating strong binding affinity of ERN with tubulin. Ligplot analysis showed hydrogen bonding with specific amino acids (Asn A226, Thr A223, Gln B247 and Val B355). QikProp-based ADME (absorption, distribution, metabolism and excretion) assessment showed considerable therapeutic potential for ERN.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Gudapureddy Radha
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai, India
| | - Pratyush Pragyandipta
- Department of Biotechnology and Bioinformatics, Center of Excellence in Natural Products and Therapeutics, Sambalpur University, Sambalpur, India
| | - Pradeep Kumar Naik
- Department of Biotechnology and Bioinformatics, Center of Excellence in Natural Products and Therapeutics, Sambalpur University, Sambalpur, India
| | - Manu Lopus
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Mumbai, India
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Recent Advancement in Drug Design and Discovery of Pyrazole Biomolecules as Cancer and Inflammation Therapeutics. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248708. [PMID: 36557840 PMCID: PMC9780894 DOI: 10.3390/molecules27248708] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
Pyrazole, an important pharmacophore and a privileged scaffold of immense significance, is a five-membered heterocyclic moiety with an extensive therapeutic profile, viz., anti-inflammatory, anti-microbial, anti-anxiety, anticancer, analgesic, antipyretic, etc. Due to the expansion of pyrazolecent red pharmacological molecules at a quicker pace, there is an urgent need to put emphasis on recent literature with hitherto available information to recognize the status of this scaffold for pharmaceutical research. The reported potential pyrazole-containing compounds are highlighted in the manuscript for the treatment of cancer and inflammation, and the results are mentioned in % inhibition of inflammation, % growth inhibition, IC50, etc. Pyrazole is an important heterocyclic moiety with a strong pharmacological profile, which may act as an important pharmacophore for the drug discovery process. In the struggle to cultivate suitable anti-inflammatory and anticancer agents, chemists have now focused on pyrazole biomolecules. This review conceals the recent expansion of pyrazole biomolecules as anti-inflammatory and anticancer agents with an aim to provide better correlation among different research going around the world.
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van Hoorebeke C, Yang K, Mussetter SJ, Koch G, Rutz N, Lokey RS, Crews P, Holman TR. Reevaluation of a Bicyclic Pyrazoline as a Selective 15-Lipoxygenase V-Type Activator Possessing Fatty Acid Specificity. ACS OMEGA 2022; 7:43169-43179. [PMID: 36467910 PMCID: PMC9713885 DOI: 10.1021/acsomega.2c05877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 10/04/2022] [Indexed: 06/17/2023]
Abstract
Regulation of lipoxygenase (LOX) activity is of great interest due to the involvement of the various LOX isoforms in the inflammatory process and hence many diseases. The bulk of investigations have centered around the discovery and design of inhibitors. However, the emerging understanding of the role of h15-LOX-1 in the resolution of inflammation provides a rationale for the development of activators as well. Bicyclic pyrazolines are known bioactive molecules that have been shown to display antibiotic and anti-inflammatory activities. In the current work, we reevaluated a previously discovered bicyclic pyrazoline h15-LOX-1 activator, PKUMDL_MH_1001 (written as 1 for this publication), and determined that it is inactive against other human LOX isozymes, h5-LOX, h12-LOX, and h15-LOX-2. Analytical characterization of 1 obtained in the final synthesis step identified it as a mixture of cis- and trans-diastereomers: cis-1 (12%) and trans-1 (88%); and kinetic analysis indicated similar potency between the two. Using compound 1 as the cis-trans mixture, h15-LOX-1 catalysis with arachidonic acid (AA) (AC50 = 7.8 +/- 1 μM, A max = 240%) and linoleic acid (AC50 = 5.3 +/- 0.7 μM, A max = 98%) was activated, but not with docosahexaenoic acid (DHA) or mono-oxylipins. Steady-state kinetics demonstrate V-type activation for 1, with a β value of 2.2 +/- 0.4 and an K x of 16 +/- 1 μM. Finally, it is demonstrated that the mechanism of activation for 1 is likely not due to decreasing substrate inhibition, as was postulated previously. 1 also did not affect the activity of the h15-LOX-1 selective inhibitor, ML351, nor did 1 affect the activity of allosteric effectors, such as 12S-hydroxy-5Z,8Z,10E,14Z-eicosatetraenoic acid (12S-HETE) and 14S-hydroperoxy-4Z,7Z,10Z,12E,16Z,19Z-docosahexaenoic acid (14S-HpDHA). These data confirm that 1 binds to a distinct activation binding site, as previously postulated. Future work should be aimed at the development of selective activators that are capable of activating h15-LOX-1 catalysis with DHA, thus enhancing the production of DHA-derived pro-resolution biomolecules.
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Affiliation(s)
- Christopher van Hoorebeke
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - Kevin Yang
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - Samuel J. Mussetter
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - Grant Koch
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - Natalie Rutz
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - R. Scott Lokey
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - Phillip Crews
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
| | - Theodore R. Holman
- Department of Chemistry and
Biochemistry, University of California Santa
Cruz, Santa Cruz, California 95064, United States
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Mor S, Khatri M, Punia R, Sindhu S. Recent Progress on Anticancer Agents Incorporating Pyrazole Scaffold. Mini Rev Med Chem 2021; 22:115-163. [PMID: 33823764 DOI: 10.2174/1389557521666210325115218] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 02/01/2021] [Accepted: 02/07/2021] [Indexed: 11/22/2022]
Abstract
The search of new anticancer agents is considered as a dynamic field of medicinal chemistry. In recent years, the synthesis of compounds with anticancer potential has increased and a large number of structurally varied compounds displaying potent anticancer activities have been published. Pyrazole is an important biologically active scaffold that possessed nearly all types of biological activities. The aim of this review is to collate literature work reported by researchers to provide an overview on in vivo and in vitro anticancer activities of pyrazole based derivatives among the diverse biological activities displayed by them and also presents recent efforts made on this heterocyclic moiety regarding anticancer activities. This review has been driven from the increasing number of publications, on this issue, which have been reported in the literature since the ending of the 20th century (from 1995-to date).
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Affiliation(s)
- Satbir Mor
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
| | - Mohini Khatri
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
| | - Ravinder Punia
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
| | - Suchita Sindhu
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar-125001, Haryana. India
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Mohammed KS, Elbeily EE, El-Taweel FM, Fadda AA. Synthesis, Characterization, and Antioxidant Evaluation of Some Novel Pyrazolo[3,4-c
][1,2]diazepine and Pyrazolo[3,4-c
]pyrazole Derivatives. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3425] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Khaled S. Mohammed
- Engineering Chemistry Department; Higher Institute for Engineering and Technology; New Damietta 34517 Egypt
| | - Engy E. Elbeily
- Department of Chemistry, Faculty of Science; Damietta University; New Damietta 34517 Egypt
| | - Fathy M. El-Taweel
- Department of Chemistry, Faculty of Science; Damietta University; New Damietta 34517 Egypt
| | - Ahmed A. Fadda
- Department of Chemistry, Faculty of Science; Mansoura University; Mansoura ET-35516 Egypt
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Sayed GH, Azab ME, Negm NA, Anwer KE. Antimicrobial and Cytotoxic Activities of Some Novel Heterocycles Bearing Pyrazole Moiety. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3196] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Galal H. Sayed
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science; Ain Shams University; Abbassia 11566 Cairo Egypt
| | - Mohammad E. Azab
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science; Ain Shams University; Abbassia 11566 Cairo Egypt
| | - Nabil A. Negm
- Petrochemical Department; Egyptian Petroleum Research Institute; Cairo Egypt
| | - Kurls E. Anwer
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science; Ain Shams University; Abbassia 11566 Cairo Egypt
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Design and Synthesis of Novel Pyrazole-Substituted Different Nitrogenous Heterocyclic Ring Systems as Potential Anti-Inflammatory Agents. Molecules 2017; 22:molecules22040512. [PMID: 28338602 PMCID: PMC6154115 DOI: 10.3390/molecules22040512] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/01/2017] [Accepted: 03/02/2017] [Indexed: 11/17/2022] Open
Abstract
With the aim of developing novel anti-inflammatory scaffolds, a new series of pyrazole-substituted various nitrogenous heterocyclic ring systems at C-4 position were synthesized through different chemical reactions and validated by means of spectral and elemental data. The new obtained compounds were investigated for their anti-inflammatory activity using the carrageenan-induced paw edema standard technique and revealed that, compound 6b showed increased potency with % inhibition of edema 85.23 ± 1.92 and 85.78 ± 0.99, respectively, higher than the standard reference drugs indomethacin and celebrex (72.99% and 83.76%). Molecular modeling studies were initiated herein to validate the attained pharmacological data and provide understandable evidence for the observed anti-inflammatory behavior.
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