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Sun X, Spellman RA, Engel M, Rubitski E, Schuler M. Comparative analysis of micronucleus induction and DNA damage biomarkers in TK6 and A375 cells using flow cytometry. Environ Mol Mutagen 2024; 65:25-46. [PMID: 38333939 DOI: 10.1002/em.22585] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/10/2024]
Abstract
Previously, we introduced an alternative adherent A375 cell line for clastogenicity and aneugenicity testing using a high content imaging platform. To further characterize the performance of A375 cells, we investigated the sensitivity and specificity of A375 and TK6 cells by directly comparing micronucleus (MN) induction, cytotoxicity (relative cell counts, viability, and apoptosis), clastogenicity (γH2AX), and aneuploidy markers (pH 3, MPM-2, and polyploidy) using flow cytometric methods. We evaluated 14 compounds across different mechanisms (non-genotoxic apoptosis inducers, clastogens, and aneugens with either tubulin binding or aurora kinase inhibiting phenotypes) at 4-h and 24-h post treatment. Both aneugens and clastogens tested positive for micronucleus induction in both cell lines. Apoptosis continued to be a confounding factor for flow cytometry-based micronuclei assessment in TK6 cells as evidenced by positive responses by the three cytotoxicants. Conversely, A375 cells were not affected by apoptosis-related false positive signals and did not produce a positive response in the in vitro micronucleus assay. Benchmark dose response (BMD) analysis showed that the induction of micronuclei and biomarkers occurred at similar concentrations in both cell lines for clastogens and aneugens. By showing that A375 cells have similar sensitivity to TK6 cells but a greater specificity, these results provide additional support for A375 cells to be used as an alternative adherent cell line for in vitro genetic toxicology assessment.
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Affiliation(s)
- Xiaowen Sun
- Pfizer Research and Development, Groton, Connecticut, USA
| | | | - Maria Engel
- Pfizer Research and Development, Groton, Connecticut, USA
| | | | - Maik Schuler
- Pfizer Research and Development, Groton, Connecticut, USA
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2
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Bastos V, Pascoal S, Lopes K, Mortari M, Oliveira H. Cytotoxic effects of Chartergellus communis wasp venom peptide against melanoma cells. Biochimie 2024; 216:99-107. [PMID: 37879427 DOI: 10.1016/j.biochi.2023.10.015] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 10/27/2023]
Abstract
Cancer is a huge public health problem being one of the main causes of death globally. Specifically, melanoma is one of the most threatening cancer types due to the metastatic capacity, treatment resistance and mortality rates. It is evident the urgent need for research on new agents with pharmacological potential for cancer treatment, in order to develop new cancer therapeutic strategies and overcome drug resistance. The present work investigated the anti-tumoral potential of Chartergellus-CP1 peptide, isolated from Chartergellus communis wasp venom on human melanoma cell lines with different pigmentation degrees, namely the amelanotic cell line A375 and pigmented cell line MNT-1. Chartergellus-CP1 induced selective cytotoxicity to melanoma cell lines when compared to the lower induced cytotoxicity towards to nontumorigenic keratinocytes. Chartergellus-CP1 peptide induced apoptosis in both melanoma cell lines, cell cycle impairment in amelanotic A375 cells and intracellular ROS increase in pigmented MNT-1 cells. The amelanotic A375 cell line showed higher sensitivity to the peptide than the pigmented cell line MNT-1. From our knowledge, this is the first study reporting the cytotoxic effects of Chartergellus-CP1 on melanoma cells.
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Affiliation(s)
- Verónica Bastos
- CESAM & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Simone Pascoal
- CESAM & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Kamila Lopes
- Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, Brazil
| | - Márcia Mortari
- Department of Physiological Sciences, Institute of Biological Sciences, University of Brasília, Brasília, Brazil
| | - Helena Oliveira
- CESAM & Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal.
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Imtiyaz K, Husain Rahmani A, Alsahli MA, Almatroodi SA, Rizvi MMA. Fisetin induces apoptosis in human skin cancer cells through downregulating MTH1. J Biomol Struct Dyn 2023; 41:7339-7353. [PMID: 36129011 DOI: 10.1080/07391102.2022.2121323] [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: 04/07/2022] [Accepted: 08/27/2022] [Indexed: 10/14/2022]
Abstract
Fisetin, a natural flavonoid molecule, has been shown to have anticancer properties against various malignancies. In this investigation, we discovered that Fisetin decreased cell viability of both the treated skin cancer cell lines A375 and A431 in a dose and time-dependent manner. The IC50 values ranging from 57.60 µM ± 6.59 to 41.70 µM ± 1.25 in A375 and 48.70 µM ± 5.49 to 33.67 µM ± 1.03 for A431 at the observed time ranging between 24 h to 72 h of treatment remained quite enthusiastic when compared with the normal HEK 293 cells. Fisetin significantly decreased colony formation and migratory ability of the cancer cells. Flow cytometry analysis revealed that Fisetin significantly restricted the progression of skin cancer cells in the G0/G1 phase of the cell cycle and induced cells to undergo apoptosis by increasing reactive oxygen species, decreasing mitochondrial membrane potential, and elevating the count of early and late apoptotic cells. Our in silico studies of molecular docking followed by molecular dynamics simulation found that the interactions and stability of MTH1 protein with Fisetin further showed a considerable binding affinity for MTH1 (-11.4 kcal/mol) and developed stable complexes maintained throughout 100 ns trajectories. Our western blot analysis endorsed this. We found that Fisetin downregulated the expression levels of MTH1 also in addition, it played a crucial role in regulation of apoptotic events in cancer cells. We therefore, conclude that Fisetin anticancer properties against skin cancer cells are mediated through MTH1 inhibition followed by ATM and P53 upregulation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Khalid Imtiyaz
- Department of Bioscience, Genome Biology Lab, New Delhi, India
| | - Arshad Husain Rahmani
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Mohammed A Alsahli
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
| | - Saleh A Almatroodi
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah, Saudi Arabia
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Capasso D, Marino P, Di Gaetano S, Borbone N, Terracciano M, Trani R, Longo C, Piccialli V. Synthesis of Brominated Lactones Related to Mycalin A: Selective Antiproliferative Activity on Metastatic Melanoma Cells and Inhibition of the Cell Migration. Mar Drugs 2023; 21:349. [PMID: 37367674 DOI: 10.3390/md21060349] [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: 04/08/2023] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/28/2023] Open
Abstract
Starting from D-xylonolactone and D-ribonolactone, several five-membered bromolactones, related to the C1-C5 portion of mycalin A lactone, have been synthesized. The bromination of D-ribonolactone with HBr/AcOH, without a subsequent transesterification step, has been studied for the first time, giving us most of the acetylated lactones investigated in the present study. For each compound, where possible, both the C-3 alcohol and the corresponding acetate were prepared. Evaluation of their anti-tumor activity showed that all the acetates possess a good cytotoxicity towards human melanoma (A375), human cervical adenocarcinoma (HeLa) and human metastatic melanoma (WM266) cancer cells, comparable or even higher than that displayed by the original mycalin A lactone. Lactone acetates derived from D-ribonolactone showed the higher selectivity of action, exhibiting a strong cytotoxicity on all the tested tumor cells but only a limited toxicity on healthy human dermal fibroblast (HDF) cells, used as a control. Wound healing assays showed that two of these substances inhibit the migration of the WM266 cells.
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Affiliation(s)
| | - Paola Marino
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Sonia Di Gaetano
- Institute of Biostructures and Bioimaging, CNR, 80134 Naples, Italy
| | - Nicola Borbone
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Monica Terracciano
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Roberta Trani
- Department of Bioscience, Biotechnology and Environment, University of Bari "Aldo Moro", Via Orabona 4, 70125 Bari, Italy
| | - Caterina Longo
- Department of Bioscience, Biotechnology and Environment, University of Bari "Aldo Moro", Via Orabona 4, 70125 Bari, Italy
| | - Vincenzo Piccialli
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
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Nicolella HD, Ribeiro AB, Munari CC, Melo MR, Ozelin SD, da Silva LHD, Marquele-Oliveira F, Orenha RP, Veneziani RCS, Parreira RLT, Tavares DC. Antimelanoma effect of manool in 2D cell cultures and reconstructed human skin models. J Biochem Mol Toxicol 2023; 37:e23282. [PMID: 36541366 DOI: 10.1002/jbt.23282] [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: 03/28/2022] [Revised: 11/03/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
Melanoma is the most aggressive and lethal type of skin cancer, characterized by therapeutic resistance. In this context, the present study aimed to investigate the cytotoxic potential of manool, a diterpene from Salvia officinalis L., in human (A375) and murine (B16F10) melanoma cell lines. The analysis of cytotoxicity using the XTT assay showed the lowest IC50 after 48 h of treatment with the manool, being 17.6 and 18.2 µg/ml for A375 and B16F10, respectively. A selective antiproliferative effect of manool was observed on the A375 cells based on the colony formation assay, showing an IC50 equivalent to 5.6 µg/ml. The manool treatments led to 43.5% inhibition of the A375 cell migration at a concentration of 5.0 µg/ml. However, it did not affect cell migration in the B16F10 cells. Cell cycle analysis revealed that the manool interfered in the cell cycle of the A375 cells, blocking the G2/M phase. No changes in the cell cycle were observed in the B16F10 cells. Interestingly, manool did not induce apoptosis in the A375 cells, but apoptosis was observed after treatment of the B16F10 cells. Additionally, manool showed an antimelanoma effect in a reconstructed human skin model. Furthermore, in silico studies, showed that manool is stabilized in the active sites of the tubulin dimer with comparable energy concerning taxol, indicating that both structures can inhibit the proliferation of cancer cells. Altogether, it is concluded that manool, through the modulation of the cell cycle, presents a selective antiproliferative activity and a potential antimelanoma effect.
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Benyahia Z, Gaudy-Marqueste C, Berenguer-Daizé C, Chabane N, Dussault N, Cayol M, Vellutini C, Djemli A, Nanni I, Beaufils N, Mabrouk K, Grob JJ, Ouafik L. Adrenomedullin Secreted by Melanoma Cells Promotes Melanoma Tumor Growth through Angiogenesis and Lymphangiogenesis. Cancers (Basel) 2022; 14:cancers14235909. [PMID: 36497391 PMCID: PMC9738606 DOI: 10.3390/cancers14235909] [Citation(s) in RCA: 3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION Metastatic melanoma is an aggressive tumor and can constitute a real therapeutic challenge despite the significant progress achieved with targeted therapies and immunotherapies, thus highlighting the need for the identification of new therapeutic targets. Adrenomedullin (AM) is a peptide with significant expression in multiple types of tumors and is multifunctional. AM impacts angiogenesis and tumor growth and binds to calcitonin receptor-like receptor/receptor activity-modifying protein 2 or 3 (CLR/RAMP2; CLR/RAMP3). METHODS In vitro and in vivo studies were performed to determine the functional role of AM in melanoma growth and tumor-associated angiogenesis and lymphangiogenesis. RESULTS In this study, AM and AM receptors were immunohistochemically localized in the tumoral compartment of melanoma tissue, suggesting that the AM system plays a role in melanoma growth. We used A375, SK-MEL-28, and MeWo cells, for which we demonstrate an expression of AM and its receptors; hypoxia induces the expression of AM in melanoma cells. The proliferation of A375 and SK-MEL-28 cells is decreased by anti-AM antibody (αAM) and anti-AMR antibodies (αAMR), supporting the fact that AM may function as a potent autocrine/paracrine growth factor for melanoma cells. Furthermore, migration and invasion of melanoma cells increased after treatment with AM and decreased after treatment with αAMR, thus indicating that melanoma cells are regulated by AM. Systemic administration of αAMR reduced neovascularization of in vivo Matrigel plugs containing melanoma cells, as demonstrated by reduced numbers of vessel structures, which suggests that AM is one of the melanoma cells-derived factors responsible for endothelial cell-like and pericyte recruitment in the construction of neovascularization. In vivo, αAMR therapy blocked angiogenesis and lymphangiogenesis and decreased proliferation in MeWo xenografts, thereby resulting in tumor regression. Histological examination of αAMR-treated tumors showed evidence of the disruption of tumor vascularity, with depletion of vascular endothelial cells and a significant decrease in lymphatic endothelial cells. CONCLUSIONS The expression of AM by melanoma cells promotes tumor growth and neovascularization by supplying/amplifying signals for neoangiogenesis and lymphangiogenesis.
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Affiliation(s)
- Zohra Benyahia
- Aix Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13005 Marseille, France
| | - Caroline Gaudy-Marqueste
- Aix Marseille Univ, APHM, CHU Timone, Service de Dermatologie et de Cancérologie Cutanée, 13005 Marseille, France
| | | | - Norhimane Chabane
- Aix Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13005 Marseille, France
| | - Nadège Dussault
- Aix Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13005 Marseille, France
| | - Mylène Cayol
- Aix Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13005 Marseille, France
| | - Christine Vellutini
- Aix Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13005 Marseille, France
| | - Amina Djemli
- Aix Marseille Univ, APHM, CHU Nord, Service D’anatomopathologie, 13015 Marseille, France
| | - Isabelle Nanni
- Aix Marseille Univ, APHM, CHU Nord, Service D’Onco-Biologie, 13015 Marseille, France
| | - Nathalie Beaufils
- Aix Marseille Univ, APHM, CHU Nord, Service D’Onco-Biologie, 13015 Marseille, France
| | - Kamel Mabrouk
- Aix Marseille Univ, CNRS, ICR, Institut de Chimie Radicalaire, 13013 Marseille, France
| | - Jean-Jacques Grob
- Aix Marseille Univ, APHM, CHU Timone, Service de Dermatologie et de Cancérologie Cutanée, 13005 Marseille, France
| | - L’Houcine Ouafik
- Aix Marseille Univ, CNRS, INP, Inst Neurophysiopathol, 13005 Marseille, France
- Aix Marseille Univ, APHM, CHU Nord, Service D’Onco-Biologie, 13015 Marseille, France
- Correspondence: ; Tel.: +33-491324447
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Banicka V, Martens MC, Panzer R, Schrama D, Emmert S, Boeckmann L, Thiem A. Homozygous CRISPR/Cas9 Knockout Generated a Novel Functionally Active Exon 1 Skipping XPA Variant in Melanoma Cells. Int J Mol Sci 2022; 23:ijms231911649. [PMID: 36232946 PMCID: PMC9569948 DOI: 10.3390/ijms231911649] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/05/2022] Open
Abstract
Defects in DNA repair pathways have been associated with an improved response to immune checkpoint inhibition (ICI). In particular, patients with the nucleotide excision repair (NER) defect disease Xeroderma pigmentosum (XP) responded impressively well to ICI treatment. Recently, in melanoma patients, pretherapeutic XP gene expression was predictive for anti-programmed cell death-1 (PD-1) ICI response. The underlying mechanisms of this finding are still to be revealed. Therefore, we used CRISPR/Cas9 to disrupt XPA in A375 melanoma cells. The resulting subclonal cell lines were investigated by Sanger sequencing. Based on their genetic sequence, candidates from XPA exon 1 and 2 were selected and further analyzed by immunoblotting, immunofluorescence, HCR and MTT assays. In XPA exon 1, we established a homozygous (c.19delG; p.A7Lfs*8) and a compound heterozygous (c.19delG/c.19_20insG; p.A7Lfs*8/p.A7Gfs*55) cell line. In XPA exon 2, we generated a compound heterozygous mutated cell line (c.206_208delTTG/c.208_209delGA; p.I69_D70delinsN/p.D70Hfs*31). The better performance of the homozygous than the heterozygous mutated exon 1 cells in DNA damage repair (HCR) and post-UV-C cell survival (MTT), was associated with the expression of a novel XPA protein variant. The results of our study serve as the fundamental basis for the investigation of the immunological consequences of XPA disruption in melanoma.
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Affiliation(s)
- Veronika Banicka
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Marie Christine Martens
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Rüdiger Panzer
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - David Schrama
- Department of Dermatology, Venereology and Allergology, University Hospital Würzburg, 97080 Würzburg, Germany
| | - Steffen Emmert
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Lars Boeckmann
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Alexander Thiem
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany
- Correspondence:
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Elias MG, Mehanna S, Elias E, Khnayzer RS, Daher CF. A photoactivatable chemotherapeutic Ru(II) complex bearing bathocuproine ligand efficiently induces cell death in human malignant melanoma cells through a multi-mechanistic pathway. Chem Biol Interact 2021; 348:109644. [PMID: 34508709 DOI: 10.1016/j.cbi.2021.109644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 04/02/2021] [Revised: 08/03/2021] [Accepted: 09/06/2021] [Indexed: 11/15/2022]
Abstract
Photoactivated chemotherapy (PACT) is an emerging strategy for targeted cancer therapy. Strained Ru complexes with pseudo-octahedral geometry may undergo photo-induced ligand dissociation, forming aquated photoproducts that are significantly more cytotoxic compared to the precursor complex. The complexes investigated were the strained complex [Ru(bpy)2BC]Cl2 (where bpy = 2,2'-bipyridine and BC = bathocuproine) and its unstrained control [Ru(bpy)2phen]Cl2 (where phen = 1,10-phenanthroline). The uptake of [Ru(bpy)2BC]Cl2, assessed by ICP/MS, started immediately post-incubation and plateaued after 24 h. Active transport was found as the main mode of intracellular transport. Cell viability assays on A375 cells indicated a mean phototoxicity index of 340-fold, and the effect was shown to be primarily mediated by the aquated photoproducts rather than the dissociating ligands. A significant increase in ROS production and DNA damage was also observed. Flow cytometry confirmed the induction of early apoptosis at 48 h that proceeds to late apoptosis/necrosis by 72 h post-treatment. Western blot analysis of pro- and anti-apoptotic proteins revealed that apoptosis was mediated through an interplay between the intrinsic and extrinsic pathways, as well as autophagy and via inhibition of the MAPK and PI3K pathways. In conclusion, this study demonstrates that [Ru(bpy)2BC]Cl2 is a multi-mechanistic PACT drug which exhibits promising anticancer potential.
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Affiliation(s)
- Maria George Elias
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, P.O. Box 36, Byblos, Lebanon
| | - Stephanie Mehanna
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, P.O. Box 36, Byblos, Lebanon
| | - Elias Elias
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, P.O. Box 36, Byblos, Lebanon
| | - Rony S Khnayzer
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Chouran, Beirut, 1102-2801, Lebanon
| | - Costantine F Daher
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, P.O. Box 36, Byblos, Lebanon.
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Jurek I, Szuplewska A, Chudy M, Wojciechowski K. Soapwort ( Saponaria officinalis L.) Extract vs. Synthetic Surfactants-Effect on Skin-Mimetic Models. Molecules 2021; 26:molecules26185628. [PMID: 34577098 PMCID: PMC8467643 DOI: 10.3390/molecules26185628] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022] Open
Abstract
Our skin is continuously exposed to different amphiphilic substances capable of interaction with its lipids and proteins. We describe the effect of a saponin-rich soapwort extract and of four commonly employed synthetic surfactants: sodium lauryl sulfate (SLS), sodium laureth sulfate (SLES), ammonium lauryl sulfate (ALS), cocamidopropyl betaine (CAPB) on different human skin models. Two human skin cell lines were employed: normal keratinocytes (HaCaT) and human melanoma cells (A375). The liposomes consisting of a dipalmitoylphosphatidylcholine/cholesterol mixture in a molar ratio of 7:3, mimicking the cell membrane of keratinocytes and melanoma cells were employed as the second model. Using dynamic light scattering (DLS), the particle size distribution of liposomes was analyzed before and after contact with the tested (bio)surfactants. The results, supplemented by the protein solubilization tests (albumin denaturation test, zein test) and oil emulsification capacity (using olive oil and engine oil), showed that the soapwort extract affects the skin models to a clearly different extent than any of the tested synthetic surfactants. Its protein and lipid solubilizing potential are much smaller than for the three anionic surfactants (SLS, ALS, SLES). In terms of protein solubilization potential, the soapwort extract is comparable to CAPB, which, however, is much harsher to lipids.
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Affiliation(s)
- Ilona Jurek
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (I.J.); (A.S.); (M.C.)
| | - Aleksandra Szuplewska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (I.J.); (A.S.); (M.C.)
| | - Michał Chudy
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (I.J.); (A.S.); (M.C.)
| | - Kamil Wojciechowski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (I.J.); (A.S.); (M.C.)
- SaponLabs Ltd., Noakowskiego 3, 00-664 Warsaw, Poland
- Correspondence:
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Goh CJH, Wong JH, El Farran C, Tan BX, Coffill CR, Loh YH, Lane D, Arumugam P. Identification of pathways modulating vemurafenib resistance in melanoma cells via a genome-wide CRISPR/Cas9 screen. G3 (Bethesda) 2021; 11:jkaa069. [PMID: 33604667 PMCID: PMC8022920 DOI: 10.1093/g3journal/jkaa069] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/08/2020] [Indexed: 12/15/2022]
Abstract
Vemurafenib is a BRAF kinase inhibitor (BRAFi) that is used to treat melanoma patients harboring the constitutively active BRAF-V600E mutation. However, after a few months of treatment patients often develop resistance to vemurafenib leading to disease progression. Sequence analysis of drug-resistant tumor cells and functional genomic screens has identified several genes that regulate vemurafenib resistance. Reactivation of mitogen-activated protein kinase (MAPK) pathway is a recurrent feature of cells that develop resistance to vemurafenib. We performed a genome-scale CRISPR-based knockout screen to identify modulators of vemurafenib resistance in melanoma cells with a highly improved CRISPR sgRNA library called Brunello. We identified 33 genes that regulate resistance to vemurafenib out of which 14 genes have not been reported before. Gene ontology enrichment analysis showed that the hit genes regulate histone modification, transcription and cell cycle. We discuss how inactivation of hit genes might confer resistance to vemurafenib and provide a framework for follow-up investigations.
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Affiliation(s)
| | - Jin Huei Wong
- Bioinformatics Institute (BII), A*STAR, Singapore 138671, Singapore
| | - Chadi El Farran
- Epigenetics and Cell Fates Laboratory, A*STAR Institute of Molecular and Cell Biology, Singapore 138673, Singapore
| | - Ban Xiong Tan
- Experimental Drug Development Centre, A*STAR, Singapore 138670, Singapore
| | | | - Yuin-Hain Loh
- Epigenetics and Cell Fates Laboratory, A*STAR Institute of Molecular and Cell Biology, Singapore 138673, Singapore
| | - David Lane
- p53Lab, A*STAR, Singapore 138648, Singapore
| | - Prakash Arumugam
- Bioinformatics Institute (BII), A*STAR, Singapore 138671, Singapore
- Singapore Institute for Food and Biotechnology Innovation, Singapore 138632, Singapore
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Yumnam S, Kang MC, Oh SH, Kwon HC, Kim JC, Jung ES, Lee CH, Lee AY, Hwang JI, Kim SY. Downregulation of dihydrolipoyl dehydrogenase by UVA suppresses melanoma progression via triggering oxidative stress and altering energy metabolism. Free Radic Biol Med 2021; 162:77-87. [PMID: 33279616 DOI: 10.1016/j.freeradbiomed.2020.11.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022]
Abstract
Melanoma, the most severe form of skin cancer, has poor prognosis and is resistant to chemotherapy. Targeting cancer metabolism is a promising approach in cancer therapeutics. Dihydrolipoyl dehydrogenase (DLD) is a mitochondrial enzyme with diaphorase activity. Here we report a pivotal role of DLD in melanoma cell progression and proliferation. Suppression DLD expression by low intensity UVA (125 mJ/cm2) increased intracellular ROS production and decreased mitochondrial membrane potential thereby inducing autophagy cell death which were confirmed by increased LC3BII and decreased p62 expression in melanoma cells. Knockdown of DLD in melanoma cells also showed similar results. More so, suppression of DLD significantly inhibits in vivo melanoma growth and tumor proliferation. In addition, suppression of DLD increased the NAD+/NADH ratio in melanoma cells and also inhibits TCA cycle related metabolites. DLD downregulation markedly increased α-ketoglutarate and decreased succinic acid suggesting that DLD suppression may have decreased TCA cycle downstream metabolites, resulting in the alteration of mitochondrial energy metabolism Thus the downregulation of DLD induced autophagic cell death in melanoma cells and inhibits in vivo tumor growth and proliferation by increasing ROS production and altering energy metabolism. Our findings suggest that DLD plays a pivotal role in melanoma progression and proliferation.
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Affiliation(s)
- Silvia Yumnam
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea
| | - Min Cheol Kang
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea
| | - Seung Hyun Oh
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea
| | - Hak Cheol Kwon
- Natural Product Informatics Research Center, KIST Gangneung Institute of Natural Products, 679 Saimdang-ro, Gangneung, Gangwon, 25451, Republic of Korea
| | - Jin Chul Kim
- Natural Product Informatics Research Center, KIST Gangneung Institute of Natural Products, 679 Saimdang-ro, Gangneung, Gangwon, 25451, Republic of Korea
| | - Eun Sung Jung
- Department of Systems Biotechnology, Konkuk University, Seoul, 05029, Republic of Korea
| | - Choong Hwan Lee
- Department of Systems Biotechnology, Konkuk University, Seoul, 05029, Republic of Korea
| | - Ai-Young Lee
- Department of Dermatology, Dongguk University Seoul, Graduate School of Medicine, Goyang, Republic of Korea
| | - Jong-Ik Hwang
- Graduate School of Medicine, Korea University, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Sun Yeou Kim
- College of Pharmacy, Gachon University, 191, Hambakmoero, Yeonsu-gu, Incheon, 21936, Republic of Korea; Gachon Institute of Pharmaceutical Science, Gachon University, Yeonsu-gu, Incheon, 21565, Republic of Korea.
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12
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Kotowski K, Supplitt S, Wiczew D, Przystupski D, Bartosik W, Saczko J, Rossowska J, Drąg-Zalesińska M, Michel O, Kulbacka J. 3PO as a Selective Inhibitor of 6-Phosphofructo-2-Kinase/Fructose-2,6-Biphosphatase 3 in A375 Human Melanoma Cells. Anticancer Res 2020; 40:2613-2625. [PMID: 32366406 DOI: 10.21873/anticanres.14232] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 03/10/2020] [Revised: 03/30/2020] [Accepted: 04/08/2020] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM The occurrence of BRAFV600E mutation causes an up-regulation of the B-raf kinase activity leading to the stabilization of hypoxia-inducible factor 1-alpha (HIF-1α) - the promoter of the 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) enzyme. The aim of the study was to examine the effect of the (2E)-3-(3-Pyridinyl)-1-(4-pyridinyl)-2-propen-1-one (3PO), as an inhibitor of PFKFB3, on human melanoma cells (A375) with endogenous BRAFV600E mutation. MATERIALS AND METHODS A375 cells were exposed to different concentrations of 3PO and the following tests were performed: docking, cytotoxicity assay, immunocytochemistry staining glucose uptake, clonogenic assay, holotomography imaging, and flow cytometry. RESULTS Our studies revealed that 3PO presents a dose-dependent and time-independent cytotoxic effect and promotes apoptosis of A375 cells. Furthermore, the obtained data indicate that 3PO induces cell cycle arrest in G1/0 and glucose uptake reduction. CONCLUSION Taking all together, our research demonstrated a here should be proapoptotic and antiproliferative effect of 3PO on A375 human melanoma cells.
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Affiliation(s)
| | | | - Daniel Wiczew
- Faculty of Fundamental Problems in Technology, Wroclaw University of Science and Technology, Wroclaw, Poland
| | | | | | - Jolanta Saczko
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
| | - Joanna Rossowska
- Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Wroclaw, Poland
| | - Małgorzata Drąg-Zalesińska
- Department of Human Morphology and Embryology, Division of Histology and Embryology, Wroclaw Medical University, Wroclaw, Poland
| | - Olga Michel
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Wroclaw Medical University, Wroclaw, Poland
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13
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Han J, Chen X, Liu W, Cui H, Yuan T. Triterpenoid Saponin and Lignan Glycosides from the Traditional Medicine Elaeagnus angustifolia Flowers and Their Cytotoxic Activities. Molecules 2020; 25:molecules25030462. [PMID: 31979069 PMCID: PMC7037515 DOI: 10.3390/molecules25030462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/15/2020] [Accepted: 01/20/2020] [Indexed: 11/29/2022] Open
Abstract
A new triterpenoid saponin, named terpengustifol A (1), and two new lignan glucosides, phengustifols A and B (2 and 3), were isolated from the flowers of Elaeagnus angustifolia. Their structures were determined by the extensive analysis of the spectroscopic data (including NMR and HRMS) and ECD calculations. Compound 1 possesses an unusual monoterpene (Z)-6-hydroxy-2,6-dimethylocta-2,7-dienoyl unit at C-21. Compounds 2 and 3 are a pair of diastereoisomers, while their aglycones are a pair of enantiomers. Compounds 1 and 2 exhibited moderate cytotoxic activities against A375 cell lines with IC50 values at 12.1 and 15.6 μM, respectively. This is firstly reported the triterpenoid saponin and lignans isolated from the Elaeagnus angustifolia flowers.
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Affiliation(s)
- Jianxin Han
- Department of Food Science and Nutrition, School of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China;
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, and State Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China; (X.C.); (W.L.)
| | - Xiaoyu Chen
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, and State Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China; (X.C.); (W.L.)
| | - Wei Liu
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, and State Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China; (X.C.); (W.L.)
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China;
| | - Hao Cui
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China;
| | - Tao Yuan
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, and State Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China; (X.C.); (W.L.)
- The Laboratory of Effective Substances of Jiangxi Genuine Medicinal Materials, College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China;
- Correspondence: ; Tel.: +86-791-8814-0829
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Fagundes Rosales P, Gower A, Lucia Ruiz Benitez M, Silveira Pacheco B, Vieira Segatto N, Roesch-Ely M, Collares T, Kömmling Seixas F, Moura S. Extraction, isolation and in vitro evaluation of affinisine from Tabernaemontana catharinensis in human melanoma cells. Bioorg Chem 2019; 90:103079. [PMID: 31255990 DOI: 10.1016/j.bioorg.2019.103079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/06/2019] [Accepted: 06/17/2019] [Indexed: 01/31/2023]
Abstract
Plant compounds have been identified as new drug prototypes. In this line, this work aimed to isolate the indole alkaloid affinisine from Tabernaemontana catharinensis and test its antitumor activity. The alkaloid was isolated by silica gel open column chromatography from the ethanolic extract of the stem of T. catharinensis. Afterwards, this molecule was characterized by high-resolution mass spectrometry and nuclear magnetic resonance. In the next step, the cytotoxicity of the compound was tested against human melanoma cell lines (A375, WM1366 and SK-MEL-28) and a normal skin cell line (CCD-1059Sk) using a MTT (3-4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. Cells treated with affinisine were evaluated by flow cytometry to analyze apoptosis and the induction of cell cycle arrest, to evaluate the dead mechanism. The metabolite was isolated in a 0.2% yield relative to the extract. Cytotoxic activity of the molecule was observed at 48 h, resulting in considerable growth inhibition rates in melanoma cells, especially in WM1366, which had the lowest IC50 (32.86 ± 2.54 µg/mL). The apoptosis rate was lower in A375 (56.66 and 86.71% with 57 and 65 µg/mL, respectively). Moreover, affinisine was able to significantly induce cell cycle arrest in different phases in the A375 and WM1366 cell lines. However, in SK-MEL-28 cells, cycle arrest was not observed. In summary, this compound significantly decreased the viability of tumor cells in a dose- and time-dependent manner for all evaluated lineages, reduced cell viability by the apoptosis mechanism and presented prominent activities of cell cycle arrest. In this way, the use of antineoplastic agents is among the most widely used therapeutic measures for the control and treatment of cancer. Affinisine is a promising prototype in the search for new drugs to treat cancer.
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Affiliation(s)
- Pauline Fagundes Rosales
- Laboratory of Biotechnology of Natural and Synthetics Products - University of Caxias do Sul - Brazil; Federal Institute of Education, Science and Technology of Rio Grande do Sul- Campus Bento Gonçalves - Brazil
| | - Adriana Gower
- Laboratory of Biotechnology of Natural and Synthetics Products - University of Caxias do Sul - Brazil
| | - Martha Lucia Ruiz Benitez
- Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology- Federal University of Pelotas - Brazil
| | - Bruna Silveira Pacheco
- Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology- Federal University of Pelotas - Brazil
| | - Natália Vieira Segatto
- Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology- Federal University of Pelotas - Brazil
| | - Mariana Roesch-Ely
- Laboratory of Genomics, Proteomics and DNA Repair - University of Caxias do Sul - Brazil
| | - Tiago Collares
- Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology- Federal University of Pelotas - Brazil
| | - Fabiana Kömmling Seixas
- Research Group on Cellular and Molecular Oncology, Postgraduate Program in Biotechnology- Federal University of Pelotas - Brazil
| | - Sidnei Moura
- Laboratory of Biotechnology of Natural and Synthetics Products - University of Caxias do Sul - Brazil.
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Abstract
Background Human melanoma is a malignant tumor originated from melanocytes with high invasion, metastasis, and poor prognosis. In this study, the effects of naphthalimides UNBS5162 and amonafide on the properties of proliferation and apoptosis in human melanoma cells were confirmed. Methods Cell proliferation was determined by CCK8 and clone formation assay. Transwell assay was performed to detect the migration and invasion of M14 and A375 cells. Cell apoptosis was estimated using flow cytometry. Results In a drug sensitivity assay, cell viability decreased with increasing concentrations of UNBS5162 or amonafide. Likewise, proliferation of M14 or A375 cells treated with 10 μM UNBS5162 or 8 μM amonafide decreased significantly when compared with negative control (NC) cells, their inhibition effect verified by means of a clone formation assay. After the treatment with UNBS5162 or amonafide, the migration of melanoma cells was inhibited in a dosede-pendent manner. The number of invaded cells treated with UNBS5162 was also significantly reduced when compared with those of the NC cells. The apoptotic cell numbers treated with UNBS5162 or amonafide decreased significantly when compared with the M14 and A375 cells in the NC group. According to Western blot results, phosphorylation of AKT and expressions of mesenchymal marker factors were inhibited in cells treated with UNBS5162 or amonafide. Conclusion These results reveal that UNBS5162 inhibits the cell activity of melanoma cells through the AKT/mTOR signaling pathway, and reverses epithelial–mesenchymal transition conversion in human melanoma cells. This study on UNBS5162 and amonafide in melanomas provides an experimental basis of their uses and potential value on human melanoma treatment.
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Affiliation(s)
- Yingyi Ye
- Department of Dermatology, HwaMei Hospital, University of Chinese Academy of Sciences, Zhejiang, China
| | - Shuhong Huang
- Department of Neurobiology, Shandong Provincial Key Laboratory of Mental Disorders, School of Basic Medical Science, Shandong University, Shandong, China
| | - Yingying Wu
- Department of Oncology, HwaMei Hospital, University of Chinese Academy of Sciences, Zhejiang, China,
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Dorasamy MS, Ab A, Nellore K, Wong PF. Synergistic inhibition of melanoma xenografts by Brequinar sodium and Doxorubicin. Biomed Pharmacother 2018; 110:29-36. [PMID: 30458345 DOI: 10.1016/j.biopha.2018.11.010] [Citation(s) in RCA: 8] [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: 09/01/2018] [Revised: 11/02/2018] [Accepted: 11/02/2018] [Indexed: 10/27/2022] Open
Abstract
Malignant melanoma continues to be a fatal disease for which novel and long-term curative breakthroughs are desired. One such innovative idea would be to assess combination therapeutic treatments - by way of combining two potentially effective and very different therapy. Previously, we have shown that DHODH inhibitors, A771726 and Brequinar sodium (BQR) induced cell growth impairment in melanoma cells. Similar results were seen with DHODH RNA interference (shRNA). In the present study, we showed that combination of BQR with doxorubicin resulted in synergistic and additive cell growth inhibition in these cells. In addition, in vivo studies with this combination of drugs demonstrated an almost 90% tumor regression in nude mice bearing melanoma tumors. Cell cycle regulatory proteins, cyclin B1 and its binding partner pcdc-2 and p21 were significantly downregulated and upregulated respectively following the combined treatment. Given that we have observed synergistic effects with BQR and doxorubicin, both in vitro and in vivo, these drugs potentially represent a new combination in the targeted therapy of melanoma.
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Affiliation(s)
- Mathura Subangari Dorasamy
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia; Aurigene Discovery Technologies, IPPP, University Malaya, Kuala Lumpur, 50603, Malaysia
| | - Aravind Ab
- Aurigene Discovery Technologies Limited, Electronic City, Bangalore, 560100, Karnataka, India
| | - Kavitha Nellore
- Aurigene Discovery Technologies Limited, Electronic City, Bangalore, 560100, Karnataka, India
| | - Pooi-Fong Wong
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia.
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17
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Zhang Y, Wang G. MicroRNA-183 inhibits A375 human melanoma cell migration and invasion by targeting Ezrin and MMP-9. Oncol Lett 2018; 17:548-554. [PMID: 30655800 DOI: 10.3892/ol.2018.9603] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 06/28/2018] [Indexed: 12/13/2022] Open
Abstract
To assess the influence of microRNA-183 (miR-183) on the migration and invasion of A375 human melanoma cells, an A375 cell line with stable miR-183 overexpression or knockdown was constructed using lentiviral transfection. The change of miR-183 expression in these cells and in non-transfected controls was verified using reverse transcription-quantitative polymerase chain reaction. The impact of miR-183 on experimental A375 cell migration and invasion was assessed using a scratch and Transwell assay. The expression of Ezrin and matrix metalloprotease-9 (MMP-9), which are two mediator proteins that serve roles in tumor cell migration and invasion, were analyzed in each cell group via western blotting. The results of the present study indicated that miR-183 overexpression significantly inhibits A375 cell migration and invasion, which may be facilitated by miR-183 knockdown. Furthermore, Ezrin and MMP-9 protein levels were negatively associated with miR-183 expression, indicating that miR-183 may function as a tumor suppressor by inhibiting the expression of these two proteins. Additionally, miR-183 downregulation may be associated with the progression of melanoma.
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Affiliation(s)
- Yusen Zhang
- Department of Plastic Surgery, People's Hospital of Zhengzhou, Henan Agricultural University, Zhengzhou, Henan 450000, P.R. China
| | - Guoqiang Wang
- Key Laboratory of Animal Biochemistry and Nutrition, Ministry of Agriculture, Henan Agricultural University, Zhengzhou, Henan 450000, P.R. China
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18
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Bhat M, Poojary B, Kalal BS, Gurubasavaraja Swamy PM, Kabilan S, Kumar V, Shruthi N, Alias Anand SA, Pai VR. Synthesis and evaluation of thiazolidinone-pyrazole conjugates as anticancer and antimicrobial agents. Future Med Chem 2018; 10:1017-36. [PMID: 29708431 DOI: 10.4155/fmc-2017-0191] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIM To synthesize a series of new thiazolidinone-pyrazole hybrids (5a-o) and assess their anticancer (in vitro and in vivo) and antimicrobial activities. RESULTS The compounds 5h (against Ehrlich ascites carcinoma cells), 5e and 5i (against the human breast cancer [MDA-MB231] cell line) exhibited potent anticancer activity. All the compounds except 5g and 5e found to be less toxic for the human dermal fibroblast cells. The effective interactions of the compounds in silico with MDM2 exemplified their inhibitory potency. The derivatives also showed moderate antimicrobial activity. CONCLUSION The halogen atoms on various positions of the N-arylamino ring played an advantageous role in elevating the potency of the molecules. Thus, these conjugates could be used as a lead for further optimization to achieve promising therapeutics.
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Francis S, Joseph S, Koshy EP, Mathew B. Microwave assisted green synthesis of silver nanoparticles using leaf extract of elephantopus scaber and its environmental and biological applications. Artif Cells Nanomed Biotechnol 2017; 46:795-804. [PMID: 28681662 DOI: 10.1080/21691401.2017.1345921] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The fabrication of spherical silver nanoparticles using the phytoreducing agent Elephantopus scaber is reported here. Irradiation of the reaction mixture under a domestic microwave oven enabled the formation of stable silver nanoparticles and was confirmed by UV-vis spectral portrait. Chemical components inherent in the aqueous leaf extract which reduces the monovalent silver were identified by FT-IR spectroscopy. The crystal structure of the synthesized nanoparticles was established as face centred cube by the powder XRD analysis. The TEM images suggest an average particle size of 37.86 nm to the silver nanoparticles. The prepared silver nanocatalysts can successfully reduce various organic nitro compounds, namely, 4-nitrophenol, 2-nitroaniline and 4-nitroaniline. The environmental pollution caused by dyes like eosin Y is effectively wiped off within a short span of time using the prepared nanocatalysts. The free radical quenching efficacy of the plant extract and the silver nanoparticles were checked by employing DPPH assay bestowing ascorbic acid reference. The potential of the nanoparticles as antimicrobials against six human disease causing pathogens were tested through the well diffusion pathway. The newly developed silver nanoparticles produced IC50 value 15.68 ± 0.15 μg/mL on human skin carcinoma cells, A375 and 65.49 ± 0.40 μg/mL on fibroblast cells, L929 when the cytotoxicity is studied employing MTT assay. Elephantopus scaber showed IC50 value 50.55 ± 0.17 μg/mL against A375 cells.
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Affiliation(s)
- Sijo Francis
- a Department of Chemistry , St. Joseph's College , Moolamattom , Idukki , India
| | - Siby Joseph
- b Department of Chemistry , St. George's College , Aruvithura, Kottayam , India
| | - Ebey P Koshy
- a Department of Chemistry , St. Joseph's College , Moolamattom , Idukki , India
| | - Beena Mathew
- c School of Chemical Sciences , Mahatma Gandhi University , Kottayam , India
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Khan MA, El-Gamal MI, Tarazi H, Choi HS, Oh CH. Design and synthesis of a new series of highly potent RAF kinase-inhibiting triarylpyrazole derivatives possessing antiproliferative activity against melanoma cells. Future Med Chem 2016; 8:2197-211. [PMID: 27845592 DOI: 10.4155/fmc-2016-0057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Inhibition of V600E-B-RAF kinase represents a potential avenue for melanoma treatment. Herein, a series of 1,3,4-triarylpyrazoles possessing amide linker were designed, synthesized and evaluated for RAF kinase inhibition. RESULTS Compounds 1d and 1f were more potent than sorafenib against A375 cell line, and their selectivity indexes toward A375 than HS27 fibroblasts were 25.43 and 45.83, respectively. Compound 1f was more potent against the melanoma cell lines with B-RAF V600E mutation than melanoma cells with NRAS mutation and normal skin epithelial cells. Compounds 1d and 1f showed strong potency and selectivity against V600E-B-RAF kinase with IC50 values of 3.80 and 2.98 nM, respectively. Molecular docking studies revealed their binding mode. CONCLUSION Potent and selective V600E-B-RAF antimelanoma agents were discovered. [Formula: see text].
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Hinrichsen S, Planer-Friedrich B. Cytotoxic activity of selenosulfate versus selenite in tumor cells depends on cell line and presence of amino acids. Environ Sci Pollut Res Int 2016; 23:8349-8357. [PMID: 26780055 DOI: 10.1007/s11356-015-5960-y] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 12/10/2015] [Indexed: 06/05/2023]
Abstract
Based on acute cytotoxicity studies, selenosulfate (SeSO3 (-)) has been suggested to possess a generally higher toxic activity in tumor cells than selenite. The reason for this difference in cytotoxic activity remained unclear. In the present study, cytotoxicity tests with human hepatoma (HepG2), malignant melanoma (A375), and urinary bladder carcinoma cells (T24) showed that the selenosulfate toxicity was very similar between all three tested cell lines (IC50 6.6-7.1 μM after 24 h). It was largely independent of exposure time and presence or absence of amino acids. What changed, however, was the toxicity of selenite, which was lower than that of selenosulfate only for HepG2 cells (IC50 > 15 μM), but similar to and higher than that of selenosulfate for A375 (IC50 4.7 μM) and T24 cells (IC50 3.5 μM), respectively. Addition of amino acids to T24 cell growth medium downregulated short-term selenite uptake (1.5 versus 12.9 ng Se/10(6) cells) and decreased its cytotoxicity (IC50 8.4 μM), rendering it less toxic than selenosulfate. The suggested mechanism is a stronger expression of the xc (-) transport system in the more sensitive T24 compared to HepG2 cells which creates a reductive extracellular microenvironment and facilitates selenite uptake by reduction. Selenosulfate is already reduced and so less affected. The cytotoxic activity of selenosulfate and selenite to tumor cells therefore depends on the sensitivity of each cell line, supplements like amino acids as well as the reductive state of the extracellular environment.
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Affiliation(s)
- Sinikka Hinrichsen
- Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany
| | - Britta Planer-Friedrich
- Environmental Geochemistry, Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, 95440, Bayreuth, Germany.
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Chang CC, Chang CH, Shen CC, Chen CL, Liu RS, Lin MH, Wang HE. Synthesis and evaluation of ¹²³/¹³¹I-Iochlonicotinamide as a novel SPECT probe for malignant melanoma. Bioorg Med Chem 2015; 23:2261-9. [PMID: 25800432 DOI: 10.1016/j.bmc.2015.02.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/26/2015] [Accepted: 02/09/2015] [Indexed: 01/01/2023]
Abstract
Malignant melanoma expresses a highly aggressive metastasis. Early diagnosis of malignant melanoma is important for patient survival. Radiolabeled benzamides and nicotinamides have been reported to be attractive candidates for malignant melanoma diagnosis as they bind to melanin, a characteristic substance that displays in malignant melanoma, and show high tumor accumulation and retention. Herein, we designed and synthesized a novel (123/131)I-labeled nicotinamide derivative that specifically binds to melanin. (123/131)I-Iochlonicotinamide was prepared with good radiochemical yield (50-70%, decay corrected) and high specific radioactivity (50-80 GBq/μmol). (131)I-Iochlonicotinamide exhibited good in vitro stability (radiochemical purity >95% after a 24-h incubation) in human serum. High uptake of (123/131)I-Iochlonicotinamide in B16F0 melanoma cells compared to that in A375 amelanotic cells demonstrated its selective binding to melanin. Intravenous administration of (123/131)I-Iochlonicotinamide in a melanoma-bearing mouse model revealed high uptake in melanotic melanoma and high tumor-to-muscle ratio. MicroSPECT scan of (123/131)I-Iochlonicotinamide injected mice also displayed high contrast tumor imaging as compared with normal organs. The radiation-absorbed dose projection for the administration of (131)I-Iochlonicotinamide to human was based on the results of biodistribution study. The effective dose appears to be approximately 0.44 mSv/MBq(-1). The specific binding of (123/131)I-Iochlonicotinamide to melanin along with a prolonged tumor retention and acceptable projected human dosimetry suggest that it may be a promising theranostic agent for treating malignant melanoma.
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MESH Headings
- Animals
- Cell Line, Tumor
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Humans
- Iodine Radioisotopes
- Male
- Melanoma/diagnosis
- Melanoma/drug therapy
- Melanoma/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Nude
- Molecular Probes/administration & dosage
- Molecular Probes/chemistry
- Molecular Probes/pharmacokinetics
- Molecular Structure
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/pathology
- Niacinamide/administration & dosage
- Niacinamide/chemistry
- Niacinamide/pharmacology
- Positron-Emission Tomography
- Radiopharmaceuticals/administration & dosage
- Radiopharmaceuticals/chemistry
- Radiopharmaceuticals/pharmacokinetics
- Structure-Activity Relationship
- Tissue Distribution
- Tomography, Emission-Computed, Single-Photon
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Affiliation(s)
- Chih-Chao Chang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, No. 155, Li-Nong St., Sec. 2, Pei-tou District, Taipei 11221, Taiwan
| | - Chih-Hsien Chang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, No. 155, Li-Nong St., Sec. 2, Pei-tou District, Taipei 11221, Taiwan; Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - Chih-Chieh Shen
- Department of Nuclear Medicine, Cheng Hsin General Hospital, Taipei, Taiwan
| | - Chuan-Lin Chen
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, No. 155, Li-Nong St., Sec. 2, Pei-tou District, Taipei 11221, Taiwan
| | - Ren-Shyan Liu
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, No. 155, Li-Nong St., Sec. 2, Pei-tou District, Taipei 11221, Taiwan; Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Hsien Lin
- Department of Nuclear Medicine, Taipei City Hospital, Zhongxiao Branch, No. 87, Tong-De Rd., Nan-Gang District, Taipei 11556, Taiwan.
| | - Hsin-Ell Wang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, No. 155, Li-Nong St., Sec. 2, Pei-tou District, Taipei 11221, Taiwan.
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23
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Jamali B, Nakhjavani M, Hosseinzadeh L, Amidi S, Nikounezhad N, H. Shirazi F. Intracellular GSH Alterations and Its Relationship to Level of Resistance following Exposure to Cisplatin in Cancer Cells. Iran J Pharm Res 2015; 14:513-9. [PMID: 25901159 PMCID: PMC4403068] [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] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
One of the major complications in cancer chemotherapy with cisplatin as one of the important medicines in treatment regimens of different cancers is the development of resistance. One of the most described cellular defense mechanisms involved in resistance is glutathione (GSH), thus in this study, the effects of cisplatin on the total intracellular GSH level (GSHi) in some sensitive and resistant variants of human cell lines (hepatocarcinoma HepG2, skin A375, cisplatin sensitive glioblastoma U373MG and cisplatin resistant glioblastoma U373MGCP, cisplatin sensitive ovary A2780S and cisplatin resistant A2780CP cells) were studied. MTT assay was performed to measure cytotoxicity of cisplatin (33.3 µM for 1 hour). Following cisplatin exposure, GSHi (per million cells) was evaluated using a photometrical assay up to 90 minutes. Our results indicate that there are significant differences between GSHi content of A2780CP and U373MGCP cells compared to other cell lines. Moreover, IC50 of cisplatin in different cells seems to have a relation with mean of GSH level in 90 minutes (GSH (mean)90). As a conclusion, it seems that resistance to cisplatin in different cell lines is more related with the diverse patterns of GSHi variations following cisplatin exposure than its original level, and/or its cellular increase or decrease. It is also suggested that GSH (mean)90 may be used as a factor for the prediction of cellular resistance to cisplatin.
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Affiliation(s)
- Bardia Jamali
- Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Maryam Nakhjavani
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Leila Hosseinzadeh
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Salimeh Amidi
- Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Nastaran Nikounezhad
- Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Farshad H. Shirazi
- Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences,, Tehran, Iran.,Corresponding author:
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24
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Beazley-Long N, Gaston K, Harper SJ, Orlando A, Bates DO. Novel mechanisms of resistance to vemurafenib in melanoma - V600E B-Raf reversion and switching VEGF-A splice isoform expression. Am J Cancer Res 2014; 5:433-441. [PMID: 25628951 PMCID: PMC4300704] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 11/28/2014] [Indexed: 06/04/2023] Open
Abstract
Targeting activating mutations in the proto-oncogene B-Raf, in melanoma, has led to increases in progression free survival. Treatment with vemurafenib, which inhibits the most common activating-mutated form of B-Raf (B-Raf(V600E)), eventually results in resistance to therapy. VEGF-A is the principal driver of angiogenesis in primary and metastatic lesions. The bioactivity of VEGF-A is dependent upon alternative RNA splicing and pro-angiogenic isoforms of VEGF-A are upregulated in many disease states dependent upon angiogenesis, including cancers. Using techniques including RT-PCR, Western blotting, ELISA and luciferase reporter assays, the effect of vemurafenib on proliferation, ERK1/2 phosphorylation and the levels of pro- and anti-angiogenic VEGF-A isoforms was investigated in melanoma cell types expressing either wild-type B-Raf or B-Raf(V600E), including a primary melanoma culture derived from a highly vascularised and active nodule taken from a patient with a V600E mutant melanoma. The primary melanoma culture was characterised and found to have reverted to wild-type B-Raf. In B-Raf(V600E) A375 cells ERK1/2 phosphorylation, pro-angiogenic VEGF-A mRNA, total VEGF-A protein expression and VEGF-A 3'UTR activity were all decreased in a concentration-dependent manner by vemurafenib. Conversely vemurafenib treatment of wild-type B-Raf cells significantly increased ERK1/2 phosphorylation, pro-angiogenic VEGF-A mRNA and total VEGF-A expression in a concentration-dependent manner. A switch to pro-angiogenic VEGF-A isoforms, with a concomitant upregulation of expression by increasing VEGF-A mRNA stability, may be an additional oncogenic and pathological mechanism in B-Raf(V600E) melanomas, which promotes tumor-associated angiogenesis and melanoma-genesis. We have also identified the genetic reversal of B-Raf(V600E) to wild-type in an active melanoma nodule taken from a V600E-positive patient and continued vemurafenib treatment for this patient is likely to have had a detrimental effect by promoting B-Raf(WT) activity.
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Affiliation(s)
- Nicholas Beazley-Long
- Microvascular Research Laboratories, University of Bristol Bristol, UK, BS2 8EJ ; School of Life Sciences, University of Nottingham, Queen's Medical School Nottingham, UK, NG7 2UH
| | - Kevin Gaston
- School of Biochemistry, University of Bristol Bristol, UK, BS8 1TD
| | - Steven J Harper
- Microvascular Research Laboratories, University of Bristol Bristol, UK, BS2 8EJ
| | - Antonio Orlando
- Department of Plastic Surgery, Southmead Hospital Brunel Building, North Bristol Trust, UK, BS10 5NB
| | - David O Bates
- Microvascular Research Laboratories, University of Bristol Bristol, UK, BS2 8EJ ; Cancer Biology, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Queen's Medical Centre Nottingham, UK, NG7 2UH
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