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Shpilt Z, Melamed-Book N, Tshuva EY. An anticancer Ti(IV) complex increases mitochondrial reactive oxygen species levels in relation with hypoxia and endoplasmic-reticulum stress: A distinct non DNA-related mechanism. J Inorg Biochem 2023; 243:112197. [PMID: 36963201 DOI: 10.1016/j.jinorgbio.2023.112197] [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: 01/16/2023] [Revised: 03/16/2023] [Accepted: 03/16/2023] [Indexed: 03/26/2023]
Abstract
PhenolaTi is a promising Ti(IV) anticancer complex, with high stability and cytotoxicity, without notable toxic side-effects. Its cellular mechanism was proposed to relate to ER stress. Herein, we investigated the downstream effects of this mode of action in two cancer cell lines: ovarian carcinoma A2780 and cervical adenocarcinoma HeLa. First, although Ti(IV) is a non-redox metal, the formation of mitochondrial reactive oxygen species (ROS) was detected with live-cell imaging. Then, we inspected the effect of the mitochondrial ROS on cytotoxicity, using two methods: (a) addition of compounds that either elevate or reduce the mitochondrial glutathione concentration, thus affecting the oxidative state of the cells; and (b) scavenging mitochondrial ROS. Unlike the results observed for cisplatin, neither method influenced the cytotoxicity of phenolaTi, implying that ROS formation was a mere side effect of its activity. Additionally, live cell imaging displayed the hypoxia induced by phenolaTi, which can be associated with ROS formation. Overall, the results support the notion that ER-stress is the main cellular mechanism of phenolaTi, leading to hypoxia and mitochondrial ROS. The distinct mechanism of phenolaTi, which is different from that of cisplatin, combined with its stability and favorable anticancer properties, altogether make it a strong chemotherapeutic drug candidate.
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Affiliation(s)
- Zohar Shpilt
- Institute of Chemistry, the Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Naomi Melamed-Book
- The Bio-Imaging Unit, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Edit Y Tshuva
- Institute of Chemistry, the Hebrew University of Jerusalem, Jerusalem 9190401, Israel..
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2
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Ortíz R, Quiñonero F, García-Pinel B, Fuel M, Mesas C, Cabeza L, Melguizo C, Prados J. Nanomedicine to Overcome Multidrug Resistance Mechanisms in Colon and Pancreatic Cancer: Recent Progress. Cancers (Basel) 2021; 13:2058. [PMID: 33923200 PMCID: PMC8123136 DOI: 10.3390/cancers13092058] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/22/2021] [Accepted: 04/22/2021] [Indexed: 12/24/2022] Open
Abstract
The development of drug resistance is one of the main causes of cancer treatment failure. This phenomenon occurs very frequently in different types of cancer, including colon and pancreatic cancers. However, the underlying molecular mechanisms are not fully understood. In recent years, nanomedicine has improved the delivery and efficacy of drugs, and has decreased their side effects. In addition, it has allowed to design drugs capable of avoiding certain resistance mechanisms of tumors. In this article, we review the main resistance mechanisms in colon and pancreatic cancers, along with the most relevant strategies offered by nanodrugs to overcome this obstacle. These strategies include the inhibition of efflux pumps, the use of specific targets, the development of nanomedicines affecting the environment of cancer-specific tissues, the modulation of DNA repair mechanisms or RNA (miRNA), and specific approaches to damage cancer stem cells, among others. This review aims to illustrate how advanced nanoformulations, including polymeric conjugates, micelles, dendrimers, liposomes, metallic and carbon-based nanoparticles, are allowing to overcome one of the main limitations in the treatment of colon and pancreatic cancers. The future development of nanomedicine opens new horizons for cancer treatment.
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Affiliation(s)
- Raúl Ortíz
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Francisco Quiñonero
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Beatriz García-Pinel
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Marco Fuel
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Cristina Mesas
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Laura Cabeza
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Consolación Melguizo
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
| | - Jose Prados
- Institute of Biopathology and Regenerative Medicine (IBIMER), Center of Biomedical Research (CIBM), University of Granada, 18100 Granada, Spain; (R.O.); (F.Q.); (B.G.-P.); (M.F.); (C.M.); (L.C.); (J.P.)
- Department of Anatomy and Embriology, Faculty of Medicine, University of Granada, 18071 Granada, Spain
- Instituto Biosanitario de Granada (ibs.GRANADA), 18014 Granada, Spain
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3
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Sanz Del Olmo N, Maroto-Diaz M, Quintana S, Gómez R, Holota M, Ionov M, Bryszewska M, Carmena MJ, Ortega P, Javier de la Mata F. Heterofunctional ruthenium(II) carbosilane dendrons, a new class of dendritic molecules to fight against prostate cancer. Eur J Med Chem 2020; 207:112695. [PMID: 32882608 DOI: 10.1016/j.ejmech.2020.112695] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/22/2020] [Accepted: 07/23/2020] [Indexed: 12/20/2022]
Abstract
A family of heterofunctional Schiff base carbosilane metallodendrons with [Ru(η5-C5H5)(PTA)Cl] (PTA = 1,3,5-triaza-7-phosphatricyclo-[3.3.1.1]decane) at the focal point and dimethylamino groups on the periphery are described. The new systems have proved their ability to interact with biological molecules such as Human Serum Albumin (HSA) without affecting its secondary structure and erythrocytes membranes, causing haemolysis in a dose and generation dependent way. The combination of two active functional groups in one single dendritic platform has shown a cooperative effect in the viability of HeLa and PC-3 cells, with the second generation derivative standing out as the most promising with the lowest IC50. Experiments focused on advanced prostate cancer have shown an antimetastasic activity for those metallodendrons, hindering the adhesion of cells in one of the main targets of metastasis, bones, and inhibiting cell migration. Finally, the second generation metallodendron with one single metal centre and four dimethylamino groups on the dendritic wedge, was selected for an ex vivo experiment in nude mice with advanced prostate cancer inhibiting the tumour growth in a 40% compared to control mice.
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Affiliation(s)
- Natalia Sanz Del Olmo
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. Del Río" (IQAR), University of Alcalá, Madrid, Spain; Biomaterials and Nanomedicine (CIBER-BBN), Spain, Institute "Ramón y Cajal" for Health Research (IRYCIS), Spain
| | - Marta Maroto-Diaz
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. Del Río" (IQAR), University of Alcalá, Madrid, Spain
| | - Sara Quintana
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. Del Río" (IQAR), University of Alcalá, Madrid, Spain; Biomaterials and Nanomedicine (CIBER-BBN), Spain, Institute "Ramón y Cajal" for Health Research (IRYCIS), Spain
| | - Rafael Gómez
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. Del Río" (IQAR), University of Alcalá, Madrid, Spain; Biomaterials and Nanomedicine (CIBER-BBN), Spain, Institute "Ramón y Cajal" for Health Research (IRYCIS), Spain
| | - Marcin Holota
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland
| | - Maksim Ionov
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland
| | - Maria Bryszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland
| | - M José Carmena
- Department of Biology of Systems, Biochemistry and Molecular Biology Unit, University of Alcalá, Madrid, Spain
| | - Paula Ortega
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. Del Río" (IQAR), University of Alcalá, Madrid, Spain; Biomaterials and Nanomedicine (CIBER-BBN), Spain, Institute "Ramón y Cajal" for Health Research (IRYCIS), Spain.
| | - F Javier de la Mata
- Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. Del Río" (IQAR), University of Alcalá, Madrid, Spain; Biomaterials and Nanomedicine (CIBER-BBN), Spain, Institute "Ramón y Cajal" for Health Research (IRYCIS), Spain.
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4
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Nahari G, Braitbard O, Larush L, Hochman J, Tshuva EY. Effective Oral Administration of an Antitumorigenic Nanoformulated Titanium Complex. ChemMedChem 2020; 16:108-112. [PMID: 32657024 DOI: 10.1002/cmdc.202000384] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Indexed: 12/13/2022]
Abstract
Orally administered anticancer drugs facilitate treatment, but the acidic conditions in the stomach often challenge their availability. PhenolaTi is a TiIV -based nontoxic anticancer drug with marked in-vivo efficacy. We report that nanoformulation protects phenolaTi from decomposition in stomach-like conditions. This is evidenced by similar NMR characteristics and similar in-vitro cytotoxicity toward murine (CT-26) and human (HT-29) colon cancer cells before and after incubation of nanoformulated phenolaTi (phenolaTi-F) at pH 2, unlike results with the unformulated form of the complex. Furthermore, administration of phenolaTi-F in animal drinking water revealed a notable inhibition of tumor growth in Balb/c and immune-deficient (Nude) mice inoculated with CT-26 and HT-29 cells, respectively. In-vivo efficacy was at least similar to that of the corresponding intraperitoneal treatment with phenolaTi-F and the clinically employed oral drug, capecitabine. No body weight loss or clinical signs of toxicity were evident in the phenolaTi-F-treated animals. These findings demonstrate a new convenient mode of cancer treatment through oral administration by safe titanium-based drugs.
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Affiliation(s)
- Gilad Nahari
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Ori Braitbard
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Liraz Larush
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Jacob Hochman
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Edit Y Tshuva
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
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5
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Miller M, Mellul A, Braun M, Sherill-Rofe D, Cohen E, Shpilt Z, Unterman I, Braitbard O, Hochman J, Tshuva EY, Tabach Y. Titanium Tackles the Endoplasmic Reticulum: A First Genomic Study on a Titanium Anticancer Metallodrug. iScience 2020; 23:101262. [PMID: 32585595 PMCID: PMC7322074 DOI: 10.1016/j.isci.2020.101262] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 05/07/2020] [Accepted: 06/05/2020] [Indexed: 12/23/2022] Open
Abstract
PhenolaTi is an advanced non-toxic anticancer chemotherapy; this inert bis(phenolato)bis(alkoxo) Ti(IV) complex demonstrates the intriguing combination of high and wide efficacy with no detected toxicity in animals. Here we unravel the cellular pathways involved in its mechanism of action by a first genome study on Ti(IV)-treated cells, using an attuned RNA sequencing-based available technology. First, phenolaTi induced apoptosis and cell-cycle arrest at the G2/M phase in MCF7 cells. Second, the transcriptome of the treated cells was analyzed, identifying alterations in pathways relating to protein translation, DNA damage, and mitochondrial eruption. Unlike for common metallodrugs, electrophoresis assay showed no inhibition of DNA polymerase activity. Reduced in vitro cytotoxicity with added endoplasmic reticulum (ER) stress inhibitor supported the ER as a putative cellular target. Altogether, this paper reveals a distinct ER-related mechanism by the Ti(IV) anticancer coordination complex, paving the way for wider applicability of related techniques in mechanistic analyses of metallodrugs.
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Affiliation(s)
- Maya Miller
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel; Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Anna Mellul
- Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Maya Braun
- Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Dana Sherill-Rofe
- Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Emiliano Cohen
- Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Zohar Shpilt
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Irene Unterman
- Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Ori Braitbard
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Jacob Hochman
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Edit Y Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| | - Yuval Tabach
- Department of Developmental Biology and Cancer Research, Institute of Medical Research-Israel-Canada, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel.
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6
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Shpilt Z, Manne R, Rohman MA, Mitra S, Tiekink ER, Basu Baul TS, Tshuva EY. Homoleptic Ti[ONO] 2type complexes of amino‐acid‐tethered phenolato Schiff‐base ligands: Synthesis, characterization, time‐resolved fluorescence spectroscopy, and cytotoxicity against ovarian and colon cancer cells. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Zohar Shpilt
- Institute of ChemistryThe Hebrew University of Jerusalem Jerusalem 9190401 Israel
| | - Rajesh Manne
- Centre of Advanced Studies in Chemistry, North‐Eastern Hill University, NEHU Permanent Campus Umshing Shillong 793 022 India
| | - Mostofa Ataur Rohman
- Centre of Advanced Studies in Chemistry, North‐Eastern Hill University, NEHU Permanent Campus Umshing Shillong 793 022 India
| | - Sivaprasad Mitra
- Centre of Advanced Studies in Chemistry, North‐Eastern Hill University, NEHU Permanent Campus Umshing Shillong 793 022 India
| | - Edward R.T. Tiekink
- Research Centre for Crystalline MaterialsSchool of Science and Technology, Sunway University 47500 Bandar Sunway Selangor Darul Ehsan Malaysia
| | - Tushar S. Basu Baul
- Centre of Advanced Studies in Chemistry, North‐Eastern Hill University, NEHU Permanent Campus Umshing Shillong 793 022 India
| | - Edit Y. Tshuva
- Institute of ChemistryThe Hebrew University of Jerusalem Jerusalem 9190401 Israel
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7
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Shaban NZ, Yehia SA, Shoueir KR, Saleh SR, Awad D, Shaban SY. Design, DNA binding and kinetic studies, antibacterial and cytotoxic activities of stable dithiophenolato titanium(IV)-chitosan Nanocomposite. J Mol Liq 2019; 287:111002. [DOI: 10.1016/j.molliq.2019.111002] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Manne R, Miller M, Duthie A, Guedes da Silva MFC, Tshuva EY, Basu Baul TS. Cytotoxic homoleptic Ti(iv) compounds of ONO-type ligands: synthesis, structures and anti-cancer activity. Dalton Trans 2019; 48:304-314. [DOI: 10.1039/c8dt03747g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Reacting variously substituted dianionic tridentate ONO-type acylhydrazone ligands with titanium(iv) tetra(isopropoxide) gave a new class of eight homoleptic titanium(iv) compounds showing exceptional stability and promising cytotoxicity.
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Affiliation(s)
- Rajesh Manne
- Centre of Advanced Studies in Chemistry
- North-Eastern Hill Unversity
- Shillong 793 022
- India
| | - Maya Miller
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
| | - Andrew Duthie
- School of Life and Environmental Science
- Deakin University
- Geelong
- Australia
| | | | - Edit Y. Tshuva
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
| | - Tushar S. Basu Baul
- Centre of Advanced Studies in Chemistry
- North-Eastern Hill Unversity
- Shillong 793 022
- India
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9
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Miller M, Tshuva EY. Racemic vs. enantiopure inert Ti(iv) complex of a single diaminotetrakis(phenolato) ligand in anticancer activity toward human drug-sensitive and -resistant cancer cell lines. RSC Adv 2018; 8:39731-39734. [PMID: 30713687 PMCID: PMC6333245 DOI: 10.1039/c8ra08925f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 11/21/2018] [Indexed: 12/16/2022] Open
Abstract
A tetrakis(phenolato) Ti(iv) complex was synthesized in racemic and optically pure form, exhibiting high hydrolytic stability, and similar cytotoxicity for all stereochemical forms on HT-29 and A2780 cancer cells. Higher activity of the racemate on drug-resistant A2780cp and A2780adr lines implies a beneficial activity of both enantiomers rendering enantiomeric resolution unnecessary.
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Affiliation(s)
- Maya Miller
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
| | - Edit Y Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
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10
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Ganot N, Briaitbard O, Gammal A, Tam J, Hochman J, Tshuva EY. In Vivo Anticancer Activity of a Nontoxic Inert Phenolato Titanium Complex: High Efficacy on Solid Tumors Alone and Combined with Platinum Drugs. ChemMedChem 2018; 13:2290-2296. [PMID: 30203598 PMCID: PMC6282713 DOI: 10.1002/cmdc.201800551] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Indexed: 11/10/2022]
Abstract
Due to the toxicity of platinum compounds used in the clinic as anticancer chemotherapies, titanium serves as a safe and attractive alternative. Lately, we introduced a new family of Ti complexes based on readily available phenolato ligands, demonstrating incredibly high hydrolytic stability, with the lead compound phenolaTi demonstrating wide cytotoxic activity toward the NCI‐60 panel of human cancer cell lines, with an average GI50 value of 4.7±2 μm. Herein, we evaluated in vivo: a) the safety, and b) the growth inhibitory capacity (efficacy) of this compound. PhenolaTi was found to be effective in vivo against colon (CT‐26) and lung (LLC‐1) murine cell lines in syngeneic hosts and toward a human colon cancer (HT‐29) cell line in immune‐deficient (Nude) mice, with an efficacy similar to that of known chemotherapy. Notably, no clinical signs of toxicity were observed in the treated mice, namely, no effect on body weight, spleen weight or kidney function, unlike the effects observed with the positive control Pt drugs. Studies of combinations of phenolaTi and Pt drugs provided evidence that similar efficacy with decreased toxicity may be achieved, which is highly valuable for medicinal applications.
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Affiliation(s)
- Nitzan Ganot
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Ori Briaitbard
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Asaad Gammal
- Obesity and Metabolism Laboratory, The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 9112001, Israel
| | - Joseph Tam
- Obesity and Metabolism Laboratory, The Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, 9112001, Israel
| | - Jacob Hochman
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Edit Y Tshuva
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
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11
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Miller M, Tshuva EY. Synthesis of Pure Enantiomers of Titanium(IV) Complexes with Chiral Diaminobis(phenolato) Ligands and Their Biological Reactivity. Sci Rep 2018; 8:9705. [PMID: 29946136 PMCID: PMC6018713 DOI: 10.1038/s41598-018-27735-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022] Open
Abstract
Racemic and enantiomerically pure titanium(IV) complexes with ortho-brominated or para-nitrated chiral diaminobis(phenolato) ligands were prepared with NH and NMe cyclohexyldiamino bridges through ligand to metal chiral induction. The hydrolytic behavior of the complexes was evaluated, identifying the N-methylated complex as the most stable. A representative NH complex hydrolyzed to first give a dimeric structure in solution as deduced by NMR diffusion measurements, followed by formation of clusters with higher nuclearity, as was supported by X-ray characterization of a tetranuclear cluster obtained in trace amounts following 30 days in water solutions. The cytotoxicity of the enantiomerically pure and racemic complexes was measured on HT-29 human colon cancer cell line based on the MTT assay; all stereochemical configurations of the N-methylated complex were inactive, whereas for the NH complexes, the racemic mixtures were mostly inactive but the pure enantiomers exhibited similarly high cytotoxicity, supporting a polynuclear active species. Analysis of the two enantiomers of the most active brominated complex for their cytotoxicity on human ovarian A2780, cisplatin resistant A2780cp and multi-drug-resistant A2780adr cell lines as well as for their apoptosis induction on the A2780 line revealed similar reactivity, supporting a similar mechanism for the two enantiomers.
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Affiliation(s)
- Maya Miller
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Edit Y Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel.
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12
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Abstract
First live cell imaging using florescent salen Ti(iv) complexes, which are cytotoxic and inactive, both entering the cell but with different subcellular accumulations.
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Affiliation(s)
- Avia Tzubery
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
| | - Naomi Melamed-Book
- The Bio-Imaging Unit
- The Alexander Silberman Institute of Life Sciences
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
| | - Edit Y. Tshuva
- Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 9190401
- Israel
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13
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Affiliation(s)
- Avia Tzubery
- The Institute of Chemistry; The Hebrew University of Jerusalem; Edmond J. Safra Campus 9190401 Jerusalem Israel
| | - Edit Y. Tshuva
- The Institute of Chemistry; The Hebrew University of Jerusalem; Edmond J. Safra Campus 9190401 Jerusalem Israel
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Zábojníková T, Cajzl R, Kljun J, Chval Z, Turel I, Burda JV. Interactions of the "piano-stool" [ruthenium(II)(η(6) -arene)(quinolone)Cl](+) complexes with water; DFT computational study. J Comput Chem 2016; 37:1766-80. [PMID: 27185047 DOI: 10.1002/jcc.24373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/23/2016] [Accepted: 02/24/2016] [Indexed: 12/12/2022]
Abstract
Full optimizations of stationary points along the reaction coordinate for the hydration of several quinolone Ru(II) half-sandwich complexes were performed in water environment using the B3PW91/6-31+G(d)/PCM/UAKS method. The role of diffuse functions (especially on oxygen) was found crucial for correct geometries along the reaction coordinate. Single-point (SP) calculations were performed at the B3LYP/6-311++G(2df,2pd)/DPCM/saled-UAKS level. In the first part, two possible reaction mechanisms-associative and dissociative were compared. It was found that the dissociative mechanism of the hydration process is kinetically slightly preferred. Another important conclusion concerns the reaction channels. It was found that substitution of chloride ligand (abbreviated in the text as dechlorination reaction) represents energetically and kinetically the most feasible pathway. In the second part the same hydration reaction was explored for reactivity comparison of the Ru(II)-complexes with several derivatives of nalidixic acid: cinoxacin, ofloxacin, and (thio)nalidixic acid. The hydration process is about four orders of magnitude faster in a basic solution compared to neutral/acidic environment with cinoxacin and nalidixic acid as the most reactive complexes in the former and latter environments, respectively. The explored hydration reaction is in all cases endergonic; nevertheless the endergonicity is substantially lower (by ∼6 kcal/mol) in basic environment. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Tereza Zábojníková
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 121 16, Czech Republic
| | - Radim Cajzl
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 121 16, Czech Republic
| | - Jakob Kljun
- Faculty of Chemistry and Chemical Technologyn University of Ljubljana, Večna pot 113, Ljubljana, 1000, Slovenia
| | - Zdeněk Chval
- Department of Laboratory Methods and Information Systems, Faculty of Health and Social Studies, University of South Bohemia, J. Boreckého 27, České Budějovice, 370 11, Czech Republic
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technologyn University of Ljubljana, Večna pot 113, Ljubljana, 1000, Slovenia
| | - Jaroslav V Burda
- Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 3, Prague 2, 121 16, Czech Republic
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Meker S, Braitbard O, Hall MD, Hochman J, Tshuva EY. Specific Design of Titanium(IV) Phenolato Chelates Yields Stable and Accessible, Effective and Selective Anticancer Agents. Chemistry 2016; 22:9986-95. [PMID: 27320784 DOI: 10.1002/chem.201601389] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [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: 03/23/2016] [Indexed: 11/07/2022]
Abstract
Octahedral titanium(IV) complexes of phenolato hexadentate ligands were developed and showed very high stability for days in water solutions. In vitro cytotoxicity studies showed that, whereas tetrakis(phenolato) systems are generally of low activity presumably due to inaccessibility, smaller bis(phenolato)bis(alkoxo) complexes feature high anticancer activity and accessibility even without formulations, also toward a cisplatin-resistant cell line. An all-aliphatic control complex was unstable and inactive. A leading phenolato complex also revealed: 1) high durability in fully aqueous solutions; accordingly, negligible loss of activity after preincubation for three days in medium or in serum; 2) maximal cellular accumulation and induction of apoptosis following 24-48 h of administration; 3) reduced impact on noncancerous fibroblast cells; 4) in vivo efficacy toward lymphoma cells in murine model; 5) high activity in NCI-60 panel, with average GI50 of 4.6±2 μm. This newly developed family of Ti(IV) complexes is thus of great potential for anticancer therapy.
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Affiliation(s)
- Sigalit Meker
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel), Fax: (+972) 2-6584282
| | - Ori Braitbard
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Matthew D Hall
- NCATS Chemical Genomics Center, National Center for Advancing Translational Sciences, National Institutes of Health, 9800 Medical Center Drive, Rockville, MD, 20850, USA
| | - Jacob Hochman
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Edit Y Tshuva
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel), Fax: (+972) 2-6584282.
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16
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Miller M, Braitbard O, Hochman J, Tshuva EY. Insights into molecular mechanism of action of salan titanium(IV) complex with in vitro and in vivo anticancer activity. J Inorg Biochem 2016; 163:250-257. [PMID: 27090292 DOI: 10.1016/j.jinorgbio.2016.04.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/14/2016] [Accepted: 04/03/2016] [Indexed: 11/17/2022]
Abstract
Titanium compounds, in particular, Ti(IV) based diaminobis(phenolato) "salan" complexes demonstrate high cytotoxicity towards a wide range of cancer cell lines in vitro, and still, very little is known on their mode of action. A representative salan Ti(IV) complex was tested both in vitro and in vivo on human HT-29 colorectal adenocarcinoma and A2780 ovarian carcinoma cells. Both cell lines were sensitive in vitro with A2780 demonstrating an enhanced rate of uptake and intracellular accumulation and thus an earlier response to the drug. HT-29 cells responded in vivo by impaired tumor development in nude mice. Both cell lines responded in vitro (but to a different extent) by upregulation of p53 with no apparent effect on p21 followed by cell cycle arrest, apoptosis and necrosis as demonstrated by sub-G1 cell accumulation and staining by Annexin-V and propidium iodide. Furthermore, time dependent activation of cysteine-aspartic proteases9 (caspase9) as well as some minor activation of cysteine-aspartic proteases3 (caspase3) support a direct effect on the apoptotic pathway. The differential response of the two cell lines to the salan titanium(IV) complex suggests that more than one pathway is involved in their growth regulation and thus could inhibit development of drug resistant variants.
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Affiliation(s)
- Maya Miller
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 9190401, Israel
| | - Ori Braitbard
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 9190401, Israel
| | - Jacob Hochman
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 9190401, Israel.
| | - Edit Y Tshuva
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 9190401, Israel.
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Barta Holló B, Magyari J, Armaković S, Bogdanović GA, Rodić MV, Armaković SJ, Molnár J, Spengler G, Leovac VM, Mészáros Szécsényi K. Coordination compounds of a hydrazone derivative with Co(iii), Ni(ii), Cu(ii) and Zn(ii): synthesis, characterization, reactivity assessment and biological evaluation. NEW J CHEM 2016. [DOI: 10.1039/c6nj00560h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Increasing inhibitory effect of Zn-Hp2DAP < Hp2DAP < Co-Hp2DAP on ABC transporter MDR1 drug efflux pump.
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Abstract
Vanadium(V) oxo complexes with no labile ligands, including six octahedral complexes with pentadentate diaminotris(phenolato) ligands and one pentacoordinate complex with a tetradentate aminotris(phenolato) ligand, were synthesized in high yields. All octahedral complexes demonstrated high hydrolytic stability with no signs of decomposition after days in the presence of water, whereas the pentacoordinate complex decomposed within minutes to release the free ligand, demonstrating the marked impact of coordination number and geometry on the complex electrophilicity. All complexes showed marked cytotoxicity toward human colon HT-29 and ovarian OVCAR-3 cells. In particular, the octahedral complexes exhibited especially high activity, higher than that of cisplatin by up to 200-fold. Selected complexes demonstrated similarly high activity also toward the A2780 and the A2780cis cisplatin-resistant line. High cytotoxicity was also recorded after prolonged incubation in a DMSO solution at 4 and 37 °C temperatures and in biological medium. In vivo studies pointed to high efficacy in reducing tumor size, where no clinical signs of toxicity were detected in the treated mice. These results overall indicate high potential of the tested compounds as antitumor agents.
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Affiliation(s)
- Lilia Reytman
- Institute of Chemistry, the Hebrew University of Jerusalem , Jerusalem 9190404, Israel
| | - Ori Braitbard
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem , Jerusalem 9190401, Israel
| | - Jacob Hochman
- Department of Cell and Developmental Biology, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem , Jerusalem 9190401, Israel
| | - Edit Y Tshuva
- Institute of Chemistry, the Hebrew University of Jerusalem , Jerusalem 9190404, Israel
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Meker S, Braitbard O, Margulis-Goshen K, Magdassi S, Hochman J, Tshuva EY. Highly Stable Tetra-Phenolato Titanium(IV) Agent Formulated into Nanoparticles Demonstrates Anti-Tumoral Activity and Selectivity. Molecules 2015; 20:18526-38. [PMID: 26473816 DOI: 10.3390/molecules201018526] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 09/30/2015] [Accepted: 10/05/2015] [Indexed: 11/16/2022] Open
Abstract
Titanium(IV) complexes exhibit high potential as anti-tumor agents, particularly due to their low intrinsic toxicity and cytotoxicity toward cisplatin resistant cells. Nevertheless, Ti(IV) complexes generally undergo rapid hydrolysis that previously hampered their utilization as anticancer drugs. We recently overcame this difficulty by developing a highly stable Ti(IV) complex that is based on tetra-phenolato, hexadentate ligand, formulated into organic nanoparticles. Herein we investigated the activity of this complex in vitro and in vivo. Although inactive when tested directly due to poor solubility, when formulated, this complex displayed (a) high cytotoxicity toward cisplatin resistant human ovarian cells, A2780-cp, with resistance factor of 1.1; (b) additive behavior in combination with cisplatin toward ovarian and colon cancer cells; (c) selectivity toward cancer cells as implied by its mild activity toward non-cancerous, fibroblast lung cells, MRC-5; (d) high stability and durability as manifested by the ability to maintain cytotoxicity, even following one week of incubation in 100% aquatic medium solution; and (e) in vivo efficacy toward solid tumors of human colon cancer cells, HT-29, in nude mice without any clinical signs of toxicity. These features support the formulated phenolato Ti(IV) complex being an effective and selective anti-tumoral agent.
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Glasner H, Meker S, Tshuva EY. Cationic phenolato titanium(IV) complexes of enhanced solubility as active and biologically accessible anti-tumor compounds. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.04.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Israel Chemical Society Prizes 2014: A. Zaban, R. Neumann, E. Lifshitz, S. Magdassi, D. Gelman, and E. Narevicius / Ars legendi-Fakultätenpreis: D. Stalke / Rutherford Medal: P. A. Schwerdtfeger / BBVA Foundation Frontiers of Knowledge Award in Basic Scie. Angew Chem Int Ed Engl 2015; 54:4152-4153. [DOI: 10.1002/anie.201500662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Preise 2014 der israelischen chemischen Gesellschaft: A. Zaban, R. Neumann, E. Lifshitz, S. Magdassi, D. Gelman und E. Narevicius / Ars-legendi-Fakultätenpreis: D. Stalke / Rutherford-Medaille: P. A. Schwerdtfeger / Frontiers of Knowledge Award in Basic S. Angew Chem Int Ed Engl 2015; 127:4224-4225. [DOI: 10.1002/ange.201500662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ganot N, Redko B, Gellerman G, Tshuva EY. Anti-proliferative activity of the combination of salan Ti(iv) complexes with other organic and inorganic anticancer drugs against HT-29 and NCI-H1229 cells: synergism with cisplatin. RSC Adv 2015. [DOI: 10.1039/c4ra13484b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Cytotoxic salan Ti(iv) complex demonstrated synergism with cisplatin in vitro toward human colon and lung cancer cells at various ratios.
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Affiliation(s)
- Nitzan Ganot
- The Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
| | - Boris Redko
- Department of Biological Chemistry
- Ariel University of Samaria
- Ariel 40700
- Israel
| | - Gary Gellerman
- Department of Biological Chemistry
- Ariel University of Samaria
- Ariel 40700
- Israel
| | - Edit Y. Tshuva
- The Institute of Chemistry
- The Hebrew University of Jerusalem
- Jerusalem 91904
- Israel
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