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Sakshi S, Dey S, Chowdhury S, Ray S. Characterization of a Zeolite-Y-Encapsulated Zn(II)Salmphen Complex with Targeted Anticancer Property. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55518-55532. [PMID: 38010148 DOI: 10.1021/acsami.3c13955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Resistance and severe side effects of classical chemotherapeutic drugs are major challenges to cancer therapy. New therapeutic agents and combination therapy are considered potential solutions that enhance the efficacy of the drug as well as reduce drug resistance. The success of a platinum-based anticancer drug, cisplatin, has paved the way to explore metal-centered anticancer therapeutic agents. Herein, the zeolite-Y-encapsulated Zn(II)Salmphen complex is synthesized using a flexible ligand approach. The Zn(II)Salmphen complex and its encapsulation within the supercage of zeolite-Y were characterized by elemental analysis, Fourier transform infrared (FTIR) spectroscopy, UV-vis, fluorescence, powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), NMR, and high-resolution mass spectrometry (HRMS) techniques. Elemental analysis, PXRD, and SEM, all together confirm the integrity of the zeolite framework after the encapsulation of Zn(II)Salmphen complex in it, and elemental analysis provides the Si/Al ratio and Zn content present. FTIR and XPS studies indicate the successful encapsulation of the complex. NMR and HRMS studies confirm that the Zn(II)Salmphen complex is dimer; however, within the supercage of zeolite-Y, it is expected to exist as a monomer. The extent of structural modification of the encapsulated Zn(II)Salmphen complex is intimated by electronic spectroscopic studies. The free-state Zn(II)Salmphen is a fluorescent complex, and even the encapsulated Zn(II)Salmphen complex, when taken in dimethyl sulfoxide (DMSO), shows fluorescence. In comparison to cisplatin, encapsulated Zn(II)Salmphen complex displays comparable cytotoxicity (IC50 = 2.0 ± 0.5 μg/mL at 48 h) toward breast cancer cell line, whereas free Zn(II)Salmphen has better cytotoxicity (IC50 = 1.5 ± 0.5 μg/mL at 48 h). Importantly, elemental analysis has revealed that the IC50 value, if calculated only in terms of Zn(II)Salmphen within Zn(II)Salmphen-Y, is as low as 54.59 ng/mL, indicating a very high efficacy of the drug. Interestingly, a 48 h treatment with the encapsulated Zn(II)Salmphen complex shows no toxicity toward immortal noncancerous keratinocyte cells (HaCaT), whereas cisplatin has an IC50 value of 1.75 ± 0.5 μg/mL. Internalization studies indicate that zeolite-Y targets cancer cells better than it does noncancerous ones. Hence, cellular uptake of the zeolite-encapsulated Zn(II)Salmphen complex in cancer cells is more than that in HaCaT cells, resulting in the generation of more reactive oxygen species and cell death. Significant upregulation of DNA damage response protein indicates that DNA-damage-induced cellular apoptosis could be the mechanism of drug action. Overall, the zeolite-encapsulated Zn(II)Salmphen complex could be a better alternative to the traditional drug cisplatin with minimal effect on noncancerous HaCaT cells and can also be utilized as a fluorescent probe in exploring the mechanistic pathway of its activity against cancer cells.
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Nejad ZK, Khandar AA, Khatamian M, Ghorbani M. Investigating of the anticancer activity of salen/salophen metal complexes based on graphene quantum dots: Induction of apoptosis as part of biological activity. Int J Pharm 2023; 642:123092. [PMID: 37247700 DOI: 10.1016/j.ijpharm.2023.123092] [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: 12/28/2022] [Revised: 05/25/2023] [Accepted: 05/26/2023] [Indexed: 05/31/2023]
Abstract
This research work is the first report on the synthesis and stabilization of [Fe-Salophen] and [Fe-Salen] complexes by two methods of surface modification and anchoring of synthesized Schiff base ligand on the surface of graphene quantum dots (GQDs). The GQDs contain oxygenated functional groups that can act as non-radiative electron-hole recombination centers. Therefore removing these oxygen functional groups may improve quantum yield by reducing or deactivating the surface. In this work, GQDs with the amine functional group were synthesized with a quantum yield of 37.48%. The physicochemical properties of GQDs were investigated by Ultraviolet-visible (UV-Vis) and fluorescence spectroscopies, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), Powder X-ray diffraction (PXRD), Transmission electron microscope (TEM). The synthesis of GQDs-[Fe-Salen] and GQDs-[Fe-Salophen] was evaluated by FT-IR, Inductively coupled plasma atomic emission spectroscopy (ICP-AES) and Energy dispersive X-Ray analysis (EDX) analyses. Then, using MTT- assay, annexin V-FITC/PI, DAPI staining and cellular uptake assays, the biochemical activity of these complexes on the MCF7 cell line was investigated. The results shows that GQDs-[Fe-Salen] and GQDs-[Fe-Salophen] affect the survival of MCF7 cancer cells and, by nuclear fragmentation cause 35.77% and 19.41% of early apoptosis in cells, respectively. Also was found cellular uptake of GQDs-[Fe-Salen] is higher than that of GQDs-[Fe-Salophen].
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Affiliation(s)
| | | | | | - Marjan Ghorbani
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Bashir M, Dar AA, Yousuf I. Syntheses, Structural Characterization, and Cytotoxicity Assessment of Novel Mn(II) and Zn(II) Complexes of Aroyl-Hydrazone Schiff Base Ligand. ACS OMEGA 2023; 8:3026-3042. [PMID: 36713712 PMCID: PMC9878661 DOI: 10.1021/acsomega.2c05927] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 12/30/2022] [Indexed: 06/15/2023]
Abstract
This work describes the syntheses, structural characterization, and biological profile of Mn(II)- and Zn(II)-based complexes 1 and 2 derived from the aroyl-hydrazone Schiff base ligand (L1). The synthesized compounds were thoroughly characterized by elemental analysis, Fourier transform infrared spectroscopy (FTIR), UV-vis, electron paramagnetic resonance (EPR), nuclear magnetic resonance (NMR), and single-crystal X-ray diffraction (s-XRD). Density functional theory (DFT) studies of complexes 1 and 2 were performed to ascertain the structural and electronic properties. Hirshfeld surface analysis was used to investigate different intermolecular interactions that define the stability of crystal lattice structures. To ascertain the therapeutic potential of complexes 1 and 2, in vitro interaction studies were carried out with ct-DNA and bovine serum albumin (BSA) using analytical and multispectroscopic techniques, and the results showed more avid binding of complex 2 than complex 1 and L1. The antioxidant potential of complexes 1 and 2 was examined against the 2,2-diphenyl picrylhydrazyl (DPPH) free radical, which revealed better antioxidant ability of the Mn(II) complex. Moreover, the antibacterial activity of synthesized complexes 1 and 2 was tested against Gram-positive and Gram-negative bacteria in which complex 2 demonstrated more effective bactericidal activity than L1 and complex 1 toward Gram-positive bacteria. Furthermore, the in vitro cytotoxicity assessment of L1 and complexes 1 and 2 was carried out against MDA-MB-231 (triple negative breast cancer) and A549 (lung) cancer cell lines. The cytotoxic results revealed that the polymeric Zn(II) complex exhibited better and selective cytotoxicity against the A549 cancer cell line as was evidenced by its low IC50 value.
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Affiliation(s)
- Masrat Bashir
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
| | - Aijaz A. Dar
- Department
of Chemistry, University of Kashmir, Hazratbal, Srinagar190006, Jammu & Kashmir, India
| | - Imtiyaz Yousuf
- Department
of Chemistry, Aligarh Muslim University, Aligarh202002, Uttar Pradesh, India
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Li Y, Liu B, Shi H, Wang Y, Sun Q, Zhang Q. Metal complexes against breast cancer stem cells. Dalton Trans 2021; 50:14498-14512. [PMID: 34591055 DOI: 10.1039/d1dt02909f] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
With the highest incidence, breast cancer is the leading cause of cancer deaths among women in the world. Tumor metastasis is the major contributor of high mortality in breast cancer, and the existence of cancer stem cells (CSCs) has been proven to be the cause of tumor metastasis. CSCs are a small proportion of tumor cells, and they are associated with self-renewal and tumorigenic potential. Given the significance of CSCs in tumor initiation, expansion, relapse, resistance, and metastasis, studies should investigate and discover effective anticancer agents that can not only inhibit the proliferation of differentiated tumor cells but also reduce the tumorigenic capability of CSCs. Thus, new therapies must be discovered to treat and prevent this severely hazardous disease of human beings. The success of platinum complexes in cancer treatment has laid the basic foundation for the utilization of metal complexes in the treatment of malignant cancers, in particular the highly aggressive triple-negative breast cancer. Importantly, metal complexes currently have diverse and versatile competences in the therapeutic targeting of CSCs. The anti-CSC properties provide a strong impetus for the development of novel metal-based compounds for the targeting of CSCs and treatment of chemotherapy-resistant and relapsed tumors. In this review, we provide the latest advances in metal complexes including platinum, ruthenium, osmium, iridium, manganese, cobalt, nickel, copper, zinc, palladium, and tin complexes against breast CSCs obtained over the past decade, with pertinent literature including those published until 2021.
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Affiliation(s)
- Yingsi Li
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, International Cancer Center, Department of Pharmacology, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, China.
| | - Boxin Liu
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, International Cancer Center, Department of Pharmacology, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, China.
| | - Hongdong Shi
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
| | - Yi Wang
- Key Laboratory for Advanced Materials of MOE, School of Chemistry & Molecular Engineering, East China University of Science and Technology Shanghai, 200237, P. R. China
| | - Qi Sun
- Guangdong Key Laboratory for Genome Stability & Disease Prevention, International Cancer Center, Department of Pharmacology, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, China.
| | - Qianling Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
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Pursuing the Elixir of Life: In Vivo Antioxidative Effects of Manganosalen Complexes. Antioxidants (Basel) 2020; 9:antiox9080727. [PMID: 32785017 PMCID: PMC7465912 DOI: 10.3390/antiox9080727] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 07/31/2020] [Accepted: 08/07/2020] [Indexed: 12/15/2022] Open
Abstract
Manganosalen complexes are coordination compounds that possess a chelating salen-type ligand, a class of bis-Schiff bases obtained by condensation of salicylaldehyde and a diamine. They may act as catalytic antioxidants mimicking both the structure and the reactivity of the native antioxidant enzymes active site. Thus, manganosalen complexes have been shown to exhibit superoxide dismutase, catalase, and glutathione peroxidase activities, and they could potentially facilitate the scavenging of excess reactive oxygen species (ROS), thereby restoring the redox balance in damaged cells and organs. Initial catalytic studies compared the potency of these compounds as antioxidants in terms of rate constants of the chemical reactivity against ROS, giving catalytic values approaching and even exceeding that of the native antioxidative enzymes. Although most of these catalytic studies lack of biological relevance, subsequent in vitro studies have confirmed the efficiency of many manganosalen complexes in oxidative stress models. These synthetic catalytic scavengers, cheaper than natural antioxidants, have accordingly attracted intensive attention for the therapy of ROS-mediated injuries. The aim of this review is to focus on in vivo studies performed on manganosalen complexes and their activity on the treatment of several pathological disorders associated with oxidative damage. These disorders, ranging from the prevention of fetal malformations to the extension of lifespan, include neurodegenerative, inflammatory, and cardiovascular diseases; tissue injury; and other damages related to the liver, kidney, or lungs.
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Pham SQT, Assadawi N, Wells J, Sophocleous RA, Davis KJ, Yu H, Sluyter R, Dillon CT, Kelso C, Beck JL, Willis AC, Richardson C, Ralph SF. A new class of quadruplex DNA-binding nickel Schiff base complexes. Dalton Trans 2020; 49:4843-4860. [DOI: 10.1039/d0dt00319k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A new nickel Schiff base complex shows selective binding behaviour towards quadruplex DNA and cytotoxicity against cancer cells.
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Eskandari A, Suntharalingam K. A reactive oxygen species-generating, cancer stem cell-potent manganese(ii) complex and its encapsulation into polymeric nanoparticles. Chem Sci 2019; 10:7792-7800. [PMID: 31588328 PMCID: PMC6764274 DOI: 10.1039/c9sc01275c] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/02/2019] [Indexed: 12/31/2022] Open
Abstract
Intracellular redox modulation offers a viable approach to effectively remove cancer stem cells (CSCs), a subpopulation of tumour cells thought to be responsible for cancer recurrence and metastasis. Here we report the breast CSC potency of reactive oxygen species (ROS)-generating manganese(ii)- and copper(ii)-4,7-diphenyl-1,10-phenanthroline complexes bearing diclofenac, a nonsteriodial anti-inflammatory drug (NSAID), 1 and 3. Notably, the manganese(ii) complex, 1, exhibits 9-fold, 31-fold, and 40-fold greater potency towards breast CSCs than 3, salinomycin (an established breast CSC-potent agent), and cisplatin (a clinically approved anticancer drug) respectively. Encouragingly, 1 displays 61-fold higher potency toward breast CSCs than normal skin fibroblast cells. Clinically relevant epithelial spheroid studies show that 1 is able to selectively inhibit breast CSC-enriched HMLER-shEcad mammosphere formation and viability (one order of magnitude) over non-tumorigenic breast MCF10A spheroids. Mechanistic studies show that 1 prompts breast CSC death by generating intracellular ROS and inhibiting cyclooxygenase-2 (COX-2) activity. The manganese(ii) complex, 1, induces a greater degree of intracellular ROS in CSCs than the corresponding copper(ii) complex, 3, highlighting the ROS-generating superiority of manganese(ii)- over copper(ii)-phenanthroline complexes. Encapsulation of 1 by biodegradable methoxy poly(ethylene glycol)-b-poly(d,l-lactic-co-glycolic) acid (PEG-PLGA) copolymers at the appropriate feed (5%, 1 NP5 ) enhances breast CSC uptake and greatly reduces overall toxicity. The nanoparticle formulation 1 NP5 indiscriminately kills breast CSCs and bulk breast cancer cells, and evokes a similar cellular response to the payload, 1. To the best of our knowledge, this is the first study to investigate the anti-CSC properties of managense complexes and to demonstrate that polymeric nanoparticles can be used to effectively deliver managense complexes into CSCs.
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Affiliation(s)
- Arvin Eskandari
- Department of Chemistry , King's College London , London , SE1 1DB , UK
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Della-Pace ID, Souza TLD, Grauncke ACB, Rambo LM, Ribeiro LR, Cipolatto RP, Severo L, Papalia WL, Santos ARS, Facundo VA, Oliveira MS, Furian AF, Fighera MR, Royes LFF. Modulation of Na +/K +- ATPase activity by triterpene 3β, 6β, 16β-trihidroxilup-20 (29)-ene (TTHL) limits the long-term secondary degeneration after traumatic brain injury in mice. Eur J Pharmacol 2019; 854:387-397. [PMID: 30807746 DOI: 10.1016/j.ejphar.2019.02.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 02/20/2019] [Accepted: 02/22/2019] [Indexed: 11/26/2022]
Abstract
Traumatic brain injury (TBI) is a public health problem characterized by a combination of immediate mechanical dysfunction of the brain tissue, and secondary damage. Based on the hypothesis that selected targets, such as Na+ K+-ATPase are involved in the secondary damage after TBI and modulation of this enzyme activity by triterpene 3β, 6β, 16β-trihidroxilup-20 (29)-ene (TTHL) supports the ethnomedical applications of this plant, we decided to investigate whether previous TTHL treatment interrupts the progression of pathophysiology induced by TBI. Statistical analyses revealed that percussion fluid injury (FPI) increased Na+,K+-ATPase activity in all isoform (α1 and α2/3) 15 min after neuronal injury. The FPI protocol inhibited Na+,K+-ATPase activity total and α1 isoform, increased [3H]MK-801 binding but did not alter Dichloro-dihydro-fluorescein diacetate (DCFH-DA) oxidation, carbonylated proteins and free -SH groups 60 min after injury. The increase of immunoreactivity of protein PKC and state of phosphorylation of at Ser16 of Na+,K+-ATPase 60 min after FPI suggest the involvement of PKC on Na+,K+-ATPase activity oscillations characterized by inhibition of total and α1 isoform. Our experimental data also revealed that natural product rich in compounds such as triterpenes (TTHL; 30 mg/kg) attenuates [3H]MK-801 binding increase, phosphorylation of the PKC and the Na+,K+-ATPase alpha 1 subunit (Ser16) induced by FPI. The previous TTHL treatment had not effect on motor disability but protected against spatial memory deficit, BDNF, TrKB expression decrease, protein carbonylation and hippocampal cell death 7 days after FPI. These data suggest that TTHL-induced reduction on initial damage limits the long-term secondary degeneration and supports neural repair or behavioral compensation after neuronal injury.
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Affiliation(s)
- Iuri Domingues Della-Pace
- Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmacologia - Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Thaíze Lopes de Souza
- Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmacologia - Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Ana Claudia Beck Grauncke
- Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmacologia - Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Leonardo Magno Rambo
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Leandro Rodrigo Ribeiro
- Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Rafael Parcianello Cipolatto
- Centro de Educação Física e Desportos, Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Leandro Severo
- Centro de Educação Física e Desportos, Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Willian Link Papalia
- Centro de Educação Física e Desportos, Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Adair Roberto Soares Santos
- Centro de Ciencias Biologicas, Laboratório de Neurobiologia da Dor e Inflamação, Departamento de Ciências Fisiológicas, Universidade Federal de Santa Catarina, Brazil
| | - Valdir A Facundo
- Departamento de Química, Universidade Federal de Rondônia, Porto Velho 78900-500, RO, Brazil
| | - Mauro Schneider Oliveira
- Centro de Ciências Naturais e Exatas, Laboratório de Neurotoxicidade, Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Ana Flavia Furian
- Centro de Ciências Naturais e Exatas, Laboratório de Neurotoxicidade, Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Michele Rechia Fighera
- Centro de Ciências da Saúde Departamento de Clínica Médica e Pediatria, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Luiz Fernando Freire Royes
- Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmacologia - Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil; Centro de Educação Física e Desportos, Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
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Erxleben A. Transition metal salen complexes in bioinorganic and medicinal chemistry. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.06.060] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ali A, Kamra M, Bhan A, Mandal SS, Bhattacharya S. New Fe(iii) and Co(ii) salen complexes with pendant distamycins: selective targeting of cancer cells by DNA damage and mitochondrial pathways. Dalton Trans 2018; 45:9345-53. [PMID: 27186601 DOI: 10.1039/c5dt04374c] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Minor groove binding distamycin like moieties were conjugated with core salens and the corresponding Fe(iii) and Co(ii) complexes were synthesized. Herein, we have shown efficient DNA minor groove binding specificities along with excellent DNA cleavage capacities with metallosalen conjugates. The metal complexes showed toxicity toward various cancer cells over normal cells with high specificity. Interestingly, the Co(ii) complexes exhibited greater activity than the Fe(iii) complexes in accordance with the stronger affinity of the former in the biophysical studies. Active DNA damage, and prominent nuclear condensation along with the release of cytochrome-c from the mitochondria unanimously showed that the metal complexes followed apoptotic pathways to induce cell death.
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Affiliation(s)
- Asfa Ali
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - Mohini Kamra
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | - Arunoday Bhan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Subhrangsu S Mandal
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Santanu Bhattacharya
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India and Indian Association for the Cultivation of Science, Kolkata, West Bengal 700 032, India.
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Luo J, Jin G, Zhang F, Liu Y, Chen L, Xie S, Zhao J. Three Types of Mixed Alkali‐Metal‐, Transition‐Metal‐, or Rare‐Earth‐Substituted Sandwich‐Type Arsenotungstates with Supporting Rare‐Earth Pendants. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jie Luo
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng Henan China
| | - Guangfeng Jin
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng Henan China
| | - Fang Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng Henan China
| | - Yun Liu
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng Henan China
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng Henan China
| | - Songqiang Xie
- Pharmaceutical College Henan University 475004 Kaifeng Henan China
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry Institute of Molecular and Crystal Engineering College of Chemistry and Chemical Engineering Henan University 475004 Kaifeng Henan China
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002 Fuzhou Fujian China
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Wang Q, Du X, Zhou B, Li J, Lu W, Chen Q, Gao J. Mitochondrial dysfunction is responsible for fatty acid synthase inhibition-induced apoptosis in breast cancer cells by PdpaMn. Biomed Pharmacother 2017; 96:396-403. [PMID: 29031197 DOI: 10.1016/j.biopha.2017.10.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 09/14/2017] [Accepted: 10/02/2017] [Indexed: 12/21/2022] Open
Abstract
Targeting cellular metabolism is becoming a hallmark to overcome drug resistance in breast cancer treatment. Activation of fatty acid synthase (FASN) has been shown to promote breast cancer cell growth. However, there is no concrete report underlying the mechanism associated with mitochondrial dysfunction in relation to fatty acid synthase inhibition-induced apoptosis in breast cancer cells. The current study is aimed at exploring the effect of the novel manganese (Mn) complex, labeled as PdpaMn, on lipid metabolism and mitochondrial function in breast cancer cells. Herein, we observed that PdpaMn displayed strong cytotoxicity on breast cancer cell lines and selectively targeted the tumor without affecting the normal organs or cells in vivo. We also observed that PdpaMn could bind to TE domain of FASN and decrease the activity and the level of expression of FASN, which is an indication that FASN could serve as a target of PdpaMn. In addition, we demonstrated that PdpaMn increased intrinsic apoptosis in breast cancer cells relayed by a suppressed the level of expression of FASN, followed by the release of mitochondrial cytochrome c and the activation of caspases-9. Instigated by the above observations, we hypothesized that PdpaMn-induced apoptosis events are dependent on mitochondrial dysfunction. Indeed, we found that mitochondrial membrane potential (MMP) collapse, mitochondrial oxygen consumption reduction and adenosine triphosphate (ATP) release were deeply repressed. Furthermore, our results showed that PdpaMn significantly increased the reactive oxygen species (ROS) production, and the protection conferred by the free radical scavenger N-acetyl-cysteine (NAC) indicates that PdpaMn-induced apoptosis through an oxidative stress-associated mechanism. More so, the above results have demonstrated that mitochondrial dysfunction participated in FASN inhibition-induce apoptosis in breast cancer cells by PdpaMn. Therefore, PdpaMn may be considered as a good candidate for anti-breast cancer therapeutic option.
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Affiliation(s)
- Qiang Wang
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Xia Du
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Bingjie Zhou
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Jing Li
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China
| | - Wenlong Lu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Qiuyun Chen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Jing Gao
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China.
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Tang X, Jia J, Li F, Liu W, Yang C, Jin B, Shi Q, Wang X, He D, Guo P. Salen-Mn compounds induces cell apoptosis in human prostate cancer cells through promoting AMPK activity and cell autophagy. Oncotarget 2017; 8:86277-86286. [PMID: 29156794 PMCID: PMC5689684 DOI: 10.18632/oncotarget.21138] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 08/26/2017] [Indexed: 01/21/2023] Open
Abstract
Currently only docetaxel has been approved to be used in the chemotherapy of prostate cancer and new drugs are urgent need. Salen-Mn is a novel type of synthetic reagent bionic and exerts remarkable anticancer activities. However, the effect of Salen-Mn on human prostate cancer has not been elucidated yet. In this study, we found that treatment of PC-3 and DU145 human prostate cancer cells with Salen-Mn inhibited cell growth in dose and time dependent manner. Moreover, Salen-Mn induced cell apoptosis, and increased the expression of apoptotic proteins, such as cleaved caspase-3, cleaved PARP, and Bax, in PC-3 and DU145 prostate cancer cells. Furthermore, we found that Salen-Mn induced expression of LC3-I/II, which is protein marker of cell autophagy, in both dose and time dependent manners; in addition, Salen-Mn increased the phosphorylation of AMPK, suggesting that Salen-Mn increase cell autophagy through activating AMPK pathway. On the other hand, when PC-3 and DU145 cells were treated with Salen-Mn and 3-MA, an inhibitor of cell autophagy, the inhibitory effect of Salen-Mn on cell growth and the induction of apoptotic proteins were decreased. In addition, we found that Salen-Mn inhibited the growth of PC-3 cell xenografts in nude mice. In summary, our results indicate that Salen-Mn suppresses cell growth through inducing AMPK activity and autophagic cell death related cell apoptosis in prostate cancer cells and suggest that Salen-Mn and its derivatives could be new options for the chemical therapeutics in the treatment of prostate cancer.
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Affiliation(s)
- Xiaoshuang Tang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jing Jia
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Feng Li
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wei Liu
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Chao Yang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Bin Jin
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qi Shi
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xinyang Wang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an, Shaanxi, China.,Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, China
| | - Dalin He
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an, Shaanxi, China.,Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, China
| | - Peng Guo
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Key Laboratory for Tumor Precision Medicine of Shaanxi Province, Xi'an, Shaanxi, China.,Oncology Research Lab, Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi, China
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14
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Yin HY, Tang J, Zhang JL. Introducing Metallosalens into Biological Studies: The Renaissance of Traditional Coordination Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700695] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hao-Yan Yin
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
| | - Juan Tang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences; State Key Laboratory of Rare Earth Materials Chemistry and Applications; College of Chemistry and Molecular Engineering; Peking University; 100871 Beijing P. R. China
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15
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Majumder S, Pasayat S, Panda AK, Dash SP, Roy S, Biswas A, Varma ME, Joshi BN, Garribba E, Kausar C, Patra SK, Kaminsky W, Crochet A, Dinda R. Monomeric and Dimeric Oxidomolybdenum(V and VI) Complexes, Cytotoxicity, and DNA Interaction Studies: Molybdenum Assisted C═N Bond Cleavage of Salophen Ligands. Inorg Chem 2017; 56:11190-11210. [DOI: 10.1021/acs.inorgchem.7b01578] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Sudarshana Majumder
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Sagarika Pasayat
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Alok K. Panda
- School of Basic
Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar 751013, Odisha, India
| | - Subhashree P. Dash
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
- Department of Basic Sciences, Paralamaharaja Engineering College, Sitalapalli, Brahmapur, Odisha 761003, India
| | - Satabdi Roy
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Ashis Biswas
- School of Basic
Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar 751013, Odisha, India
| | - Mokshada E. Varma
- Bioprospecting
Group, Agharkar Research Institute, G.G. Agharkar Road, Pune 411004, India
| | - Bimba N. Joshi
- Bioprospecting
Group, Agharkar Research Institute, G.G. Agharkar Road, Pune 411004, India
| | - Eugenio Garribba
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna
2, I-07100 Sassari, Italy
| | - Chahat Kausar
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Samir Kumar Patra
- Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Werner Kaminsky
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195, United States
| | - Aurélien Crochet
- Department of Chemistry, Fribourg Center
for Nanomaterials, University of Fribourg, CH-1700 Fribourg, Switzerland
| | - Rupam Dinda
- Department of Chemistry, National Institute of Technology, Rourkela 769008, Odisha, India
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16
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Balakrishnan C, Theetharappan M, Kowsalya P, Natarajan S, Neelakantan M, Mariappan S. Biocatalysis, DNA–protein interactions, cytotoxicity and molecular docking of Cu(II), Ni(II), Zn(II) and V(IV) Schiff base complexes. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3776] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Chithiraivel Balakrishnan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - M. Theetharappan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - P. Kowsalya
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - Satheesh Natarajan
- Department of Pharmacy, School of Health SciencesKwazulu Natal University Durban 4001 South Africa
| | - M.A. Neelakantan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
| | - S.S. Mariappan
- Chemistry Research CentreNational Engineering College K. R. Nagar, Kovilpatti 628503 Thoothukudi District Tamil Nadu India
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17
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Asatkar AK, Tripathi M, Panda S, Pande R, Zade SS. Cu(I) complexes of bis(methyl)(thia/selena) salen ligands: Synthesis, characterization, redox behavior and DNA binding studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 171:18-24. [PMID: 27458761 DOI: 10.1016/j.saa.2016.07.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/16/2016] [Indexed: 06/06/2023]
Abstract
Mononuclear cuprous complexes 1 and 2, [{CH3E(o-C6H4)CH=NCH2}2Cu]ClO4; E=S/Se, have been synthesized by the reaction of bis(methyl)(thia/selena) salen ligands and [Cu(CH3CN)4]ClO4. Both the products were characterized by elemental analysis, ESI-MS, FT-IR, 1H/13C/77Se NMR, and cyclic voltammetry. The complexes possess tetrahedral geometry around metal center with the N2S2/N2Se2 coordination core. Cyclic voltammograms of complexes 1 and 2 displayed reversible anodic waves at E1/2=+0.08V and +0.10V, respectively, corresponding to the Cu(I)/Cu(II) redox couple. DNA binding studies of both the complexes were performed applying absorbance, fluorescence and molecular docking techniques. Competitive binding experiment of complexes with ct-DNA against ethidium bromide is performed to predict the mode of binding. The results indicate the groove binding mode of complexes 1 and 2 to DNA. The binding constants revealed the strong binding affinity of complexes towards ct-DNA.
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Affiliation(s)
- Ashish K Asatkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741252 Nadia, WB, India.
| | - Mamta Tripathi
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India
| | - Snigdha Panda
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741252 Nadia, WB, India
| | - Rama Pande
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India
| | - Sanjio S Zade
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur, 741252 Nadia, WB, India
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18
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Ali A, Kamra M, Roy S, Muniyappa K, Bhattacharya S. Novel Oligopyrrole Carboxamide based Nickel(II) and Palladium(II) Salens, Their Targeting of Human G-Quadruplex DNA, and Selective Cancer Cell Toxicity. Chem Asian J 2016; 11:2542-54. [DOI: 10.1002/asia.201600655] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 07/16/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Asfa Ali
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
| | - Mohini Kamra
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
| | - Soma Roy
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
| | - K. Muniyappa
- Department of Biochemistry; Indian Institute of Science; Bangalore 560 012 India
| | - Santanu Bhattacharya
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560 012 India
- Director's Research Unit; Indian Association for the Cultivation of Science; Kolkata 700 032 India
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19
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Geng J, Li J, Huang T, Zhao K, Chen Q, Guo W, Gao J. A novel manganese complex selectively induces malignant glioma cell death by targeting mitochondria. Mol Med Rep 2016; 14:1970-8. [PMID: 27432745 PMCID: PMC4991729 DOI: 10.3892/mmr.2016.5509] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 04/14/2016] [Indexed: 01/21/2023] Open
Abstract
Despite advances in treatment, malignant glioma commonly exhibits recurrence, subsequently leading to a poor prognosis. As manganese (Mn) compounds can be transported by the transferrin-transferrin receptor system, the present study synthesized and examined the potential use of Adpa-Mn as a novel antitumor agent. Adpa-Mn time and dose-dependently inhibited U251 and C6 cell proliferation; however, it had little effect on normal astrocytes. Apoptosis was significantly elevated following treatment with Adpa-Mn, as detected by chromatin condensation, Annexin V/propidium iodide staining, cytochrome c release from mitochondria to the cytoplasm, and the activation of caspases-9, -7 and -3 and poly (ADP-ribose) polymerase. In addition, Adpa-Mn enhanced fluorescence intensity of monodansylcadaverine and elevated the expression levels of the autophagy-related protein microtubule-associated protein 1 light chain 3. Pretreatment with the autophagy inhibitors 3-methyladenine and chloroquine enhanced Adpa-Mn-induced cell inhibition, thus indicating that autophagy has an essential role in this process. Furthermore, evidence of mitochondrial dysfunction was detected in the Adpa-Mn-treated group, including disrupted membrane potential, elevated levels of reactive oxygen species (ROS) and depleted adenosine triphosphate. Conversely, treatment with the mitochondrial permeability transition inhibitor cyclosporin A reversed Adpa-Mn-induced ROS production, mitochondrial damage and cell apoptosis, thus suggesting that Adpa-Mn may target the mitochondria. Taken together, these data suggested that Adpa-Mn may be considered for use as a novel anti-glioma therapeutic option.
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Affiliation(s)
- Ji Geng
- Department of Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Jing Li
- Department of Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Tao Huang
- Department of Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Kaidi Zhao
- Department of Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Qiuyun Chen
- Department of Applied Chemistry, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Wenjie Guo
- Department of Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Jing Gao
- Department of Pharmacy, School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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20
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Balakrishnan C, Natarajan S, Neelakantan MA. Exploration of biological activities of alkyne arms containing Cu(ii) and Ni(ii) complexes: syntheses, crystal structures and DFT calculations. RSC Adv 2016. [DOI: 10.1039/c6ra20650f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Several mononuclear Cu(ii) and Ni(ii) Schiff base (N,O-donor) complexes were synthesized and characterized. The binding ability with DNA and BSA and catecholase activity of the complexes were investigated.
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Affiliation(s)
| | - Satheesh Natarajan
- Department of Pharmacy
- School of Health Sciences
- Kwazulu Natal University
- Durban-4001
- South Africa
| | - M. A. Neelakantan
- Chemistry Research Centre
- National Engineering College
- Tamil Nadu
- India
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21
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Wang J, Li Y, Liu Y, Li Y, Gong S, Fang F, Wang Z. Overexpression of truncated AIF regulated by Egr1 promoter radiation-induced apoptosis on MCF-7 cells. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2015; 54:413-421. [PMID: 26514806 DOI: 10.1007/s00411-015-0619-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 08/23/2015] [Indexed: 06/05/2023]
Abstract
It has been demonstrated that gene-radiotherapy can improve the radiotherapy by selectively increasing cells' response to ionizing radiation. Apoptosis-inducing factor (AIF) is a mitochondrial flavoprotein, and its C-terminal domain is responsible for the proapoptotic activity. In the present study, we overexpressed truncated AIF on MCF-7 cells by transfection of pcDNA3.1-tAIF (pc-tAIF) and pcDNA3.1-Egr1-tAIF (pc-Egr1-tAIF) plasmids. After MCF-7-tAIF cells were exposed to X-rays, the AIF and tAIF expressions, cell proliferation, apoptosis, cell cycle invasion, cytochrome c (Cyt c) release and activation of caspase-9 were measured by using Western blot, MTT assay, flow cytometry and Matrigel transwell assay, respectively. Our results showed that tAIF expression increased on time- and dose-dependent manners. Both tAIF and radiation can synergistically enhance the apoptosis, cell proliferation inhibition, cell cycle arrest and cell-invasive inhibition. In addition, tAIF overexpression and irradiation increased Cyt c release. However, only irradiation increased caspase-9 activation. Our studies indicated that tAIF overexpression might enhance apoptosis induced by radiation in MCF-7 cells.
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Affiliation(s)
- Jianfeng Wang
- Department of Radiotherapy, China-Japan Union Hospital, Jilin University, Changchun, Jilin Province, People's Republic of China
- Key Laboratory of Radiobiology, Ministry of Health, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Yana Li
- Department of Ophthalmology and Otolaryngology, The Children's Hospital of Changchun, Changchun, Jilin Province, People's Republic of China
| | - Yang Liu
- Key Laboratory of Radiobiology, Ministry of Health, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Yanbo Li
- Key Laboratory of Radiobiology, Ministry of Health, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China
- School of Public Health and Family Medicine, Capital Medical University, Beijing, People's Republic of China
| | - Shouliang Gong
- Key Laboratory of Radiobiology, Ministry of Health, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China
| | - Fang Fang
- Key Laboratory of Radiobiology, Ministry of Health, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China.
- Department of Nutrition and Food Hygiene, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China.
| | - Zhicheng Wang
- Key Laboratory of Radiobiology, Ministry of Health, School of Public Health, Jilin University, Changchun, Jilin Province, People's Republic of China.
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22
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Tyagi N, Chakraborty A, Singh UP, Roy P, Ghosh K. Mononuclear iron(iii) complexes of tridentate ligands with efficient nuclease activity and studies of their cytotoxicity. Org Biomol Chem 2015; 13:11445-58. [DOI: 10.1039/c5ob01623a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mono- and bis-chelated iron(iii) complexes derived from phenolato-based tridentate ligands have been synthesised and characterized. These complexes show electrostatic DNA interactions and efficient DNA cleavage via OH˙ radicals, and induce cytotoxicity in MCF7 cell lines.
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Affiliation(s)
- Nidhi Tyagi
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Ajanta Chakraborty
- Department of Biochemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Udai P. Singh
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Partha Roy
- Department of Biochemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Kaushik Ghosh
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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23
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Fonseca AS, Bortoluzzi AJ. Crystal structure of 3-[({2-[bis-(2-hy-droxy-benz-yl)amino]-eth-yl}(2-hy-droxy-benz-yl)amino)-meth-yl]-2-hydroxy-5-methyl-benzaldehyde. Acta Crystallogr Sect E Struct Rep Online 2014; 70:562-5. [PMID: 25552993 PMCID: PMC4257411 DOI: 10.1107/s1600536814024465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 11/06/2014] [Indexed: 12/03/2022]
Abstract
The non-symmetric title mol-ecule, C32H34N2O5, is based on a tetra-substituted ethyl-enedi-amine backbone. The mol-ecular structure consists of three hy-droxy-benzyl groups and one 2-hy-droxy-5-methyl-benzaldehyde group bonded to the N atoms of the di-amine unit. The ethyl-enedi-amine skeleton shows a regular extended conformation, while the spatial orientation of the phenol arms is governed by hydrogen bonds. In the 2-hy-droxy-5-methyl-benzaldehyde group, an intra-molecular S(6) O-H⋯O hydrogen bond is observed between the alcohol and aldehyde functions, and the neighbouring phenol arm participates in an intra-molecular S(6) O-H⋯N hydrogen bond. The third phenol group is involved in a bifurcated intra-molecular hydrogen bond with graph-set notation S(6) for O-H⋯N and O-H⋯O intra-molecular hydrogen bonds between neighbouring amine and phenol arms, respectively. Finally, the fourth phenol group acts as an acceptor in a bifurcated intra-molecular hydrogen bond and also acts as donor in an inter-molecular hydrogen bond, which connects inversion-related mol-ecules into dimers with R 4 (4)(8) ring motifs.
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Affiliation(s)
- Alexandra S. Fonseca
- Depto. de Química – Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Adailton J. Bortoluzzi
- Depto. de Química – Universidade Federal de Santa Catarina, 88040-900 Florianópolis, Santa Catarina, Brazil
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24
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Elshaarawy RF, Kheiralla ZH, Rushdy AA, Janiak C. New water soluble bis-imidazolium salts with a saldach scaffold: Synthesis, characterization and in vitro cytotoxicity/bactericidal studies. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Kumar P, Saravanan S, Khan NUH, Hussain F, Singh S. Chiral MnIII-salalen and -salan Complexes Derived from (S)-Pyrrolidin-2-ylmethanamine and Their Catalytic Activity in the Asymmetric Strecker Reaction. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402548] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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26
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DNA binders in clinical trials and chemotherapy. Bioorg Med Chem 2014; 22:4506-21. [DOI: 10.1016/j.bmc.2014.05.030] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 05/09/2014] [Accepted: 05/14/2014] [Indexed: 01/09/2023]
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27
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Batinic-Haberle I, Tovmasyan A, Roberts ERH, Vujaskovic Z, Leong KW, Spasojevic I. SOD therapeutics: latest insights into their structure-activity relationships and impact on the cellular redox-based signaling pathways. Antioxid Redox Signal 2014; 20:2372-415. [PMID: 23875805 PMCID: PMC4005498 DOI: 10.1089/ars.2012.5147] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 06/30/2013] [Accepted: 07/22/2013] [Indexed: 01/23/2023]
Abstract
SIGNIFICANCE Superoxide dismutase (SOD) enzymes are indispensable and ubiquitous antioxidant defenses maintaining the steady-state levels of O2·(-); no wonder, thus, that their mimics are remarkably efficacious in essentially any animal model of oxidative stress injuries thus far explored. RECENT ADVANCES Structure-activity relationship (half-wave reduction potential [E1/2] versus log kcat), originally reported for Mn porphyrins (MnPs), is valid for any other class of SOD mimics, as it is dominated by the superoxide reduction and oxidation potential. The biocompatible E1/2 of ∼+300 mV versus normal hydrogen electrode (NHE) allows powerful SOD mimics as mild oxidants and antioxidants (alike O2·(-)) to readily traffic electrons among reactive species and signaling proteins, serving as fine mediators of redox-based signaling pathways. Based on similar thermodynamics, both SOD enzymes and their mimics undergo similar reactions, however, due to vastly different sterics, with different rate constants. CRITICAL ISSUES Although log kcat(O2·(-)) is a good measure of therapeutic potential of SOD mimics, discussions of their in vivo mechanisms of actions remain mostly of speculative character. Most recently, the therapeutic and mechanistic relevance of oxidation of ascorbate and glutathionylation and oxidation of protein thiols by MnP-based SOD mimics and subsequent inactivation of nuclear factor κB has been substantiated in rescuing normal and killing cancer cells. Interaction of MnPs with thiols seems to be, at least in part, involved in up-regulation of endogenous antioxidative defenses, leading to the healing of diseased cells. FUTURE DIRECTIONS Mechanistic explorations of single and combined therapeutic strategies, along with studies of bioavailability and translational aspects, will comprise future work in optimizing redox-active drugs.
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Affiliation(s)
- Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Emily R. H. Roberts
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Zeljko Vujaskovic
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Kam W. Leong
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- King Abdulaziz University, Jeddah, Saudi Arabia Kingdom
| | - Ivan Spasojevic
- Department of Medicine, Duke University Medical School, Durham, North Carolina
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28
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Fe–salphen complexes from intracellular pH-triggered degradation of Fe3O4@Salphen-InIII CPPs for selectively killing cancer cells. Biomaterials 2014; 35:1676-85. [DOI: 10.1016/j.biomaterials.2013.10.081] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 10/31/2013] [Indexed: 11/22/2022]
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29
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Angelé-Martínez C, Goodman C, Brumaghim J. Metal-mediated DNA damage and cell death: mechanisms, detection methods, and cellular consequences. Metallomics 2014; 6:1358-81. [DOI: 10.1039/c4mt00057a] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Metal ions cause various types of DNA damage by multiple mechanisms, and this damage is a primary cause of cell death and disease.
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Affiliation(s)
| | - Craig Goodman
- Department of Chemistry
- Clemson University
- Clemson, USA
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30
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Mahato M, Dey D, Pal S, Saha S, Ghosh A, Harms K, Nayek HP. Syntheses, structures, optical properties and biological activities of bimetallic complexes. RSC Adv 2014. [DOI: 10.1039/c4ra11991f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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31
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Giannicchi I, Brissos R, Ramos D, Lapuente JD, Lima JC, Cort AD, Rodríguez L. Substituent Effects on the Biological Properties of Zn-Salophen Complexes. Inorg Chem 2013; 52:9245-53. [DOI: 10.1021/ic4004356] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ilaria Giannicchi
- Dipartimento di Chimica and
IMC-CNR Sezione Meccanismi di Reazione, Università La Sapienza, Box 34 Roma 62, 00185 Roma, Italy
| | - Rosa Brissos
- Departament de Química
Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - David Ramos
- Unitat de Toxicologia Experimental
i Ecotoxicologia, Parc Científic de Barcelona, c/Baldiri i Reixach, 10-12, 08028 Barcelona, Spain
| | - Joaquin de Lapuente
- Unitat de Toxicologia Experimental
i Ecotoxicologia, Parc Científic de Barcelona, c/Baldiri i Reixach, 10-12, 08028 Barcelona, Spain
| | - João Carlos Lima
- REQUIMTE, Departamento de Química,
Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal
| | - Antonella Dalla Cort
- Dipartimento di Chimica and
IMC-CNR Sezione Meccanismi di Reazione, Università La Sapienza, Box 34 Roma 62, 00185 Roma, Italy
| | - Laura Rodríguez
- Departament de Química
Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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32
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Bhan A, Hussain I, Ansari KI, Kasiri S, Bashyal A, Mandal SS. Antisense transcript long noncoding RNA (lncRNA) HOTAIR is transcriptionally induced by estradiol. J Mol Biol 2013; 425:3707-22. [PMID: 23375982 DOI: 10.1016/j.jmb.2013.01.022] [Citation(s) in RCA: 197] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 12/24/2012] [Accepted: 01/17/2013] [Indexed: 12/25/2022]
Abstract
HOTAIR (HOX antisense intergenic RNA) is a long noncoding RNA (lncRNA) that is transcribed from the antisense strand of homeobox C gene locus in chromosome 12. HOTAIR coordinates with chromatin-modifying enzymes and regulates gene silencing. It is overexpressed in various carcinomas including breast cancer. Herein, we demonstrated that HOTAIR is crucial for cell growth and viability and its knockdown induced apoptosis in breast cancer cells. We also demonstrated that HOTAIR is transcriptionally induced by estradiol (E2). Its promoter contains multiple functional estrogen response elements (EREs). Estrogen receptors (ERs) along with various ER coregulators such as histone methylases MLL1 (mixed lineage leukemia 1) and MLL3 and CREB-binding protein/p300 bind to the promoter of HOTAIR in an E2-dependent manner. Level of histone H3 lysine-4 trimethylation, histone acetylation, and RNA polymerase II recruitment is enriched at the HOTAIR promoter in the presence of E2. Knockdown of ERs and MLLs downregulated the E2-induced HOTAIR expression. Thus, similar to protein-coding gene transcription, E2-induced transcription of antisense transcript HOTAIR is coordinated via ERs and ER coregulators, and this mechanism of HOTAIR overexpression potentially contributes towards breast cancer progression.
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Affiliation(s)
- Arunoday Bhan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
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33
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Brissos R, Ramos D, Lima JC, Mihan FY, Borràs M, de Lapuente J, Cort AD, Rodríguez L. Luminescent zinc salophen derivatives: cytotoxicity assessment and action mechanism studies. NEW J CHEM 2013. [DOI: 10.1039/c3nj41125g] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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New polydentate Ru(III)-Salan complexes: Synthesis, characterization, anti-tumour activity and interaction with human serum proteins. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.09.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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35
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Gasbarri C, Angelini G, Fontana A, De Maria P, Siani G, Giannicchi I, Cort AD. Kinetics of demetallation of a zinc–salophen complex into liposomes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2012; 1818:747-52. [DOI: 10.1016/j.bbamem.2011.10.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/07/2011] [Accepted: 10/18/2011] [Indexed: 01/10/2023]
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36
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Tzubery A, Tshuva EY. Cytotoxicity and Hydrolysis of trans-Ti(IV) Complexes of Salen Ligands: Structure–Activity Relationship Studies. Inorg Chem 2011; 51:1796-804. [DOI: 10.1021/ic202092u] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Avia Tzubery
- Institute of Chemistry, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
| | - Edit Y. Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, 91904, Jerusalem, Israel
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37
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Zhou DF, Chen QY, Qi Y, Fu HJ, Li Z, Zhao KD, Gao J. Anticancer Activity, Attenuation on the Absorption of Calcium in Mitochondria, and Catalase Activity for Manganese Complexes of N-Substituted Di(picolyl)amine. Inorg Chem 2011; 50:6929-37. [PMID: 21710973 DOI: 10.1021/ic200004y] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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38
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Ansari KI, Hussain I, Shrestha B, Kasiri S, Mandal SS. HOXC6 Is transcriptionally regulated via coordination of MLL histone methylase and estrogen receptor in an estrogen environment. J Mol Biol 2011; 411:334-49. [PMID: 21683083 DOI: 10.1016/j.jmb.2011.05.050] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 05/27/2011] [Accepted: 05/31/2011] [Indexed: 10/24/2022]
Abstract
Homeobox (HOX)-containing gene HOXC6 is a critical player in mammary gland development and milk production, and is overexpressed in breast and prostate cancers. We demonstrated that HOXC6 is transcriptionally regulated by estrogen (E2). HOXC6 promoter contains two putative estrogen response elements (EREs), termed as ERE1(1/2) and ERE2(1/2). Promoter analysis using luciferase-based reporter assay demonstrated that both EREs are responsive to E2, with ERE1(1/2) being more responsive than ERE2(1/2). Estrogen receptors (ERs) ERα and ERβ bind to these EREs in an E2-dependent manner, and antisense-mediated knockdown of ERs suppressed the E2-dependent activation of HOXC6 expression. Similarly, knockdown of histone methylases MLL2 and MLL3 decreased the E2-mediated activation of HOXC6. However, depletion of MLL1 or MLL4 showed no significant effect. MLL2 and MLL3 were bound to the HOXC6 EREs in an E2-dependent manner. In contrast, MLL1 and MLL4 that were bound to the HOXC6 promoter in the absence of E2 decreased upon exposure to E2. MLL2 and MLL3 play key roles in histone H3 lysine-4 trimethylation and in the recruitment of general transcription factors and RNA polymerase II in the HOXC6 promoter during E2-dependent transactivation. Nuclear receptor corepressors N-CoR and SAFB1 were bound in the HOXC6 promoter in the absence of E2, and that binding was decreased upon E2 treatment, indicating their critical roles in suppressing HOXC6 gene expression under nonactivated conditions. Knockdown of either ERα or ERβ abolished E2-dependent recruitment of MLL2 and MLL3 into the HOXC6 promoter, demonstrating key roles of ERs in the recruitment of these mixed lineage leukemias into the HOXC6 promoter. Overall, our studies demonstrated that HOXC6 is an E2-responsive gene, and that histone methylases MLL2 and MLL3, in coordination with ERα and ERβ, transcriptionally regulate HOXC6 in an E2-dependent manner.
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Affiliation(s)
- Khairul I Ansari
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, TX 76019, USA
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39
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Chang HC, Chen ST, Chien SY, Kuo SJ, Tsai HT, Chen DR. Capsaicin may induce breast cancer cell death through apoptosis-inducing factor involving mitochondrial dysfunction. Hum Exp Toxicol 2011; 30:1657-65. [DOI: 10.1177/0960327110396530] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The majority of breast cancer patients are resistant to chemotherapy or radiotherapy due to the down-regulation or lack of caspase-3 expression. Capsaicin was found to inhibit cancer cell growth in caspase-3-deficient human breast cancer cells. This study aimed to investigate the growth-inhibitive effect of capsaicin and its mechanisms in human breast cancer cell lines, MCF-7 and BT-20. The results showed that cell viability decreased in a dose-dependent manner in both the caspase-3-deficient and non-deficient cells through inducing cell apoptosis and arresting the cell cycle in the S phase. Capsaicin significantly decreased mitochondria membrane potential, induced the cleavage of PARP-1, and decreased procaspase-7 expression in both cells. Apoptosis-inducing factor (AIF) was distinctly released from mitochondria and translocated into the cytoplasm and nucleus in MCF-7 cells (52.9%), but not in BT-20 cells (2%) after treatment with 200 μM of capsaicin for 24 hours. Capsaicin inhibited breast cancer cell growth through inducing cell apoptosis and cell cycle arrest in the S phase. This apoptotic effect could be induced through the mitochondrial pathway, and PARP-1 subsequently cleaved by activation of caspase-7. The application of capsaicin in clinical therapy could be useful for breast cancer patients.
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Affiliation(s)
- HC Chang
- Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - ST Chen
- Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - SY Chien
- Department of Pharmacy, Changhua Christian Hospital, Changhua, Taiwan
- College of Health Care and Management, Chung Shan Medical University, Taichung, Taiwan
| | - SJ Kuo
- Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan
- College of Health Care and Management, Chung Shan Medical University, Taichung, Taiwan
- Comprehensive Breast Cancer Center, Changhua Christian Hospital, Changhua, Taiwan
| | - HT Tsai
- School of Nursing, Chung Shan Medical University, Taichung, Taiwan
- Department of Nursing, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - DR Chen
- Department of Surgery, Changhua Christian Hospital, Changhua, Taiwan
- Comprehensive Breast Cancer Center, Changhua Christian Hospital, Changhua, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
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Metallo-salen complexes show promise towards treatment of leukemia. Leuk Res 2011; 35:571-2. [PMID: 21277022 DOI: 10.1016/j.leukres.2010.12.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 12/27/2010] [Accepted: 12/28/2010] [Indexed: 12/19/2022]
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41
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Hille A, Wolf T, Schumacher P, Ott I, Gust R, Kircher B. Effects of Metal Salophene and Saldach Complexes on Lymphoma and Leukemia Cells. Arch Pharm (Weinheim) 2011; 344:217-23. [DOI: 10.1002/ardp.201000237] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 10/08/2010] [Accepted: 10/15/2010] [Indexed: 11/11/2022]
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42
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Trujillo A, Justaud F, Toupet L, Cador O, Carrillo D, Manzur C, Hamon JR. New copper(ii)-centered complexes with organometallic donor–acceptor substituted unsymmetrical Schiff base ligands. NEW J CHEM 2011. [DOI: 10.1039/c0nj01018a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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43
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[Fe(III)(salophene)Cl], a potent iron salophene complex overcomes multiple drug resistance in lymphoma and leukemia cells. Leuk Res 2010; 35:387-93. [PMID: 21131047 DOI: 10.1016/j.leukres.2010.11.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2010] [Revised: 09/26/2010] [Accepted: 11/09/2010] [Indexed: 11/20/2022]
Abstract
We demonstrate the cytotoxic potential of the Schiff base iron complex [Fe(III)(salophene)Cl] in vitro and ex vivo and illustrate its ability to overcome multiple drug resistance in vincristine and daunorubicine resistant leukemic cells (Nalm-6). Treatment of lymphoma cells (BJAB) with [Fe(III)(salophene)Cl] led to the exclusion of unspecific necrosis, a concentration-dependent inhibition of proliferation and a specific apoptotic cell death. We further detected a significant loss of the mitochondrial membrane potential in lymphoma cells and an up- and downregulation of various apoptosis relevant genes, respectively, indicating the involvement of the intrinsic mitochondrial pathway.
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Fe(III)-Salen and Salphen Complexes Induce Caspase Activation and Apoptosis in Human Cells. ACTA ACUST UNITED AC 2010; 16:26-35. [DOI: 10.1177/1087057110385227] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To explore the apoptotic and antitumor activities of metallo-salens, the authors have synthesized several Fe(III)-salen and salphen complexes and analyzed their effects on human cancer and noncancer cells. Their results demonstrated that Fe(III)-salen and salphen complexes affect cell viability and induce nuclear fragmentation and apoptosis in breast cancer (MCF7) cells. The IC50 values for the active metallo-salen complexes ranged between 0.3 and 22 µM in MCF7 cells. Biochemically active Fe(III)-salen and salphen complexes induced caspase-3/7 activation and release of cytochrome c from the mitochondria to cytosol, suggesting the involvement of the mitochondrial pathway of apoptosis. Comparison of IC50 values toward 3 different cell lines demonstrated that selected Fe(III)-salen complexes induce tumor cell-selective apoptosis in cultured cells. Overall, the studies demonstrated that Fe(III)-salen and salphen complexes induced efficient apoptosis in cultured human cells. The nature of the substituents and the bridging spacer between diamino groups play critical roles in determining the apoptotic activities of Fe(III)-salen and salphen complexes.
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