1
|
Song Z, Chen P, Teng L, Wang W, Zhu W. Copper Nanodrugs with Controlled Morphologies through Aqueous Atom Transfer Radical Polymerization. Biomacromolecules 2024. [PMID: 38902858 DOI: 10.1021/acs.biomac.4c00552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Copper (Cu) nanodrugs can be facilely prepared through atom transfer radical polymerization (ATRP) in an aqueous medium. However, it is difficult to control the morphology of Cu nanodrugs and thereby optimize their anticancer activity. In this work, aqueous ATRP was combined with polymerization-induced self-assembly (PISA) to prepare Cu nanodrugs with various morphologies. We mapped the relationship between polymerization condition and product morphology in which each morphology shows a wide preparation window. Decreasing the reaction temperature and feeding more Cu catalysts can improve the mobility of chains, facilitating the morphology evolution from sphere to other high-order morphologies. The resultant Cu nanodrugs with high monomer conversion and high Cu loading efficiency could be easily taken by cancer cells, showing excellent anticancer efficacy in vitro. This work proposed a potential strategy to prepare Cu nanodrugs with a specific morphology in batches, providing the method to optimize the anticancer efficacy through morphology control.
Collapse
Affiliation(s)
- Ziyan Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Peng Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China
| | - Lisong Teng
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Weibin Wang
- Department of Surgical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030000, China
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Hangzhou 310058, China
| |
Collapse
|
2
|
Wang Y, Tang T, Yuan Y, Li N, Wang X, Guan J. Copper and Copper Complexes in Tumor Therapy. ChemMedChem 2024; 19:e202400060. [PMID: 38443744 DOI: 10.1002/cmdc.202400060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 03/07/2024]
Abstract
Copper (Cu), a crucial trace element in physiological processes, has garnered significant interest for its involvement in cancer progression and potential therapeutic applications. The regulation of cellular copper levels is essential for maintaining copper homeostasis, as imbalances can lead to toxicity and cell death. The development of drugs that target copper homeostasis has emerged as a promising strategy for anticancer treatment, with a particular focus on copper chelators, copper ionophores, and novel copper complexes. Recent research has also investigated the potential of copper complexes in cancer therapy.
Collapse
Affiliation(s)
- Yingqiao Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Tingxi Tang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yi Yuan
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Nan Li
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoqing Wang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jian Guan
- Guangdong Province Key Laboratory of Molecular Tumor Pathology, Guangzhou, Guangdong, China
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| |
Collapse
|
3
|
Zhang MJ, Shi M, Yu Y, Ou R, Ge RS, Duan P. Curcuminoid PBPD induces cuproptosis and endoplasmic reticulum stress in cervical cancer via the Notch1/RBP-J/NRF2/FDX1 pathway. Mol Carcinog 2024. [PMID: 38801356 DOI: 10.1002/mc.23735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 03/18/2024] [Accepted: 04/14/2024] [Indexed: 05/29/2024]
Abstract
Curcumin has been shown to have antitumor properties, but its low potency and bioavailability has limited its clinical application. We designed a novel curcuminoid, [1-propyl-3,5-bis(2-bromobenzylidene)-4-piperidinone] (PBPD), which has higher antitumor strength and improves bioavailability. Cell counting kit-8 was used to detect cell activity. Transwell assay was used to detect cell invasion and migration ability. Western blot and quantitative polymerase chain reaction were used to detect protein levels and their messenger RNA expression. Immunofluorescence was used to detect the protein location. PBPD significantly inhibited the proliferation of cervical cancer cells, with an IC50 value of 4.16 μM for Hela cells and 3.78 μM for SiHa cells, leading to the induction of cuproptosis. Transcriptome sequencing analysis revealed that PBPD significantly inhibited the Notch1/Recombination Signal Binding Protein for Immunoglobulin kappa J Region (RBP-J) and nuclear factor erythroid 2-related factor 2 (NRF2) signaling pathways while upregulating ferredoxin 1 (FDX1) expression. Knockdown of Notch1 or RBP-J significantly inhibited NRF2 expression and upregulated FDX1 expression, leading to the inhibition of nicotinamide adenine dinucleotide phosphate activity and the induction of oxidative stress, which in turn activated endoplasmic reticulum stress and induced cell death. The overexpression of Notch1 or RBP-J resulted in the enrichment of RBP-J within the NRF2 promoter region, thereby stimulating NRF2 transcription. NRF2 knockdown resulted in increase in FDX1 expression, leading to cuproptosis. In addition, PBPD inhibited the acidification of tumor niche and reduced cell metabolism to inhibit cervical cancer cell invasion and migration. In conclusion, PBPD significantly inhibits the proliferation, invasion, and migration of cervical cancer cells and may be a novel potential drug candidate for treatment of cervical cancer.
Collapse
Affiliation(s)
- Min-Jie Zhang
- Department of Obstetrics and Gynecology, Oncology Discipline Group, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Anaesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Pediatrics, Key Laboratory of Structural Malformations in Children of Zhejiang Province and Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Mengna Shi
- Department of Obstetrics and Gynecology, Oncology Discipline Group, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yang Yu
- Department of Obstetrics and Gynecology, Oncology Discipline Group, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Rongying Ou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ren-Shan Ge
- Department of Obstetrics and Gynecology, Oncology Discipline Group, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Anaesthesiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Department of Pediatrics, Key Laboratory of Structural Malformations in Children of Zhejiang Province and Key Laboratory of Environment and Male Reproductive Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Ping Duan
- Department of Obstetrics and Gynecology, Oncology Discipline Group, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| |
Collapse
|
4
|
Chen P, Song Z, Yao X, Wang W, Teng L, Matyjaszewski K, Zhu W. Copper Nanodrugs by Atom Transfer Radical Polymerization. Angew Chem Int Ed Engl 2024; 63:e202402747. [PMID: 38488767 DOI: 10.1002/anie.202402747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Indexed: 04/09/2024]
Abstract
In this study, some copper catalysts used for atom transfer radical polymerization (ATRP) were explored as efficient anti-tumor agents. The aqueous solution of copper-containing nanoparticles with uniform spheric morphology was in situ prepared through a copper-catalyzed activator generated by electron transfer (AGET) ATRP in water. Nanoparticles were then directly injected into tumor-bearing mice for antitumor chemotherapy. The copper nanodrugs had prolonged blood circulation time and enhanced accumulation at tumor sites, thus showing potent antitumor activity. This work provides a novel strategy for precise and large-scale preparation of copper nanodrugs with high antitumor activity.
Collapse
Affiliation(s)
- Peng Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ziyan Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xuxia Yao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Weibin Wang
- The First Affiliated Hospital, Department of Surgical Oncology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Lisong Teng
- The First Affiliated Hospital, Department of Surgical Oncology, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania, 15213, United States
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030000, China
- Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, Hangzhou, 310027, China
| |
Collapse
|
5
|
Chen Y, Ke Z, Yuan L, Liang M, Zhang S. Hydrazylpyridine salicylaldehyde-copper(II)-1,10-phenanthroline complexes as potential anticancer agents: synthesis, characterization and anticancer evaluation. Dalton Trans 2023; 52:12318-12331. [PMID: 37591821 DOI: 10.1039/d3dt01750h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
We synthesized and analyzed nine unique copper(II) hydrazylpyridine salicylaldehyde and 1,10-phenanthroline complexes, [Cu(L1a)(phen)] (Cugdupt1), [Cu(L2a)(phen)]·(CH3CN) (Cugdupt2), [Cu(L3a)(phen)] (Cugdupt3), [Cu(L4a)(phen)]·(CH3CN) (Cugdupt4), [Cu(L5a)(phen)] (Cugdupt5), [Cu(L6a)(phen)] (Cugdupt6), [Cu(L7a)(phen)] (Cugdupt7) [Cu(L8a)(phen)] (Cugdupt8) and [Cu(L9a)(phen)]·0.5(H2O) (Cugdupt9). We were motivated by the intriguing properties of the coupled ligands of hydrazylpyridine, salicylaldehyde, and 1,10-phenanthroline. The MTT assay demonstrated that Cugdupt1-Cugdupt9 have higher anticancer activity than L1H2-L9H2, phen and cisplatin on A549/DDP cancer cells (A549cis). Cugdupt1-Cugdupt9 were superior to cisplatin with IC50 values of 1.6-100.0 fold on A549cis cells (IC50(Cugdupt1-Cugdupt9) = 0.5-30.5 μM, IC50(cisplatin) = 61.5 ± 1.0 μM). However, Cugdupt1-Cugdupt9 had lower cytotoxicity toward the HL-7702 normal cells. Cugdupt1 and Cugdupt8 can induce reduction of mitochondrial respiratory chain complexes I/IV (MRCC-I/IV), mitophagy pathways, and eventually protein regulation and adenosine triphosphate (ATP) depletion in A549cis cells. The findings indicated that Cugdupt1 and Cugdupt8 caused cell death via both ATP diminution and mitophagy pathways. Finally, Cugdupt8 demonstrated high efficacy and no obvious cytotoxicity in A549 tumor-bearing mice. This study thus helps evaluate the potential of the hydrazylpyridine salicylaldehyde-copper(II)-1,10-phenanthroline compounds for cisplatin-resistant tumor therapy.
Collapse
Affiliation(s)
- Yating Chen
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, P. R. China
| | - Zhilin Ke
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, P. R. China
| | - Lingyu Yuan
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.
| | - Meixiang Liang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.
| | - Shuhua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China.
- College of Chemistry, Guangdong University of Petrochemical Technology, Maoming, Guangdong, 525000, P. R. China
| |
Collapse
|
6
|
Niu ZL, Zhou SH, Wu YY, Wu TT, Liu QS, Zhao QH, Ji H, Ren X, Xie MJ. Multifunctional O-phenanthroline silver(I) complexes for antitumor activity against colorectal adenocarcinoma cells and antimicrobial properties by multiple mechanisms. J Inorg Biochem 2023; 246:112293. [PMID: 37354605 DOI: 10.1016/j.jinorgbio.2023.112293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 06/26/2023]
Abstract
A series of O-phenanthroline silver(I) complexes were synthesized and characterized by infrared (IR) spectroscopy, mass spectrometry (MS), 1H nuclear magnetic resonance (NMR) spectroscopy and single-crystal X-ray crystallography. The cytotoxicity of the silver(I) complex (P-131) was evaluated in the cancer cell lines HCT-116, HeLa, and MDA-MB-231 and the normal cell line LO2 via MTT assays. The 50% inhibition concentration (IC50) of P-131 on HCT116 cell line is 0.86 ± 0.03 μM. It is far lower than the IC50 value of cisplatin (9.08 ± 1.10 μM), the IC50 value of normal cell LO2 (76.20 ± 0.48 μM) is much higher than that of cisplatin (3.99 ± 0.74 μM), indicating that its anticancer effect is stronger than that of cisplatin, and its biological safety is greater than that of cisplatin. Furthermore, anticancer mechanistic studies showed that P-131 inhibited cell proliferation by blocking DNA synthesis and acted temporally on the nucleus in dividing HCT-116 cells. Moreover, P-131 increased intracellular reactive oxygen species (ROS) levels in a dose-dependent manner. Notably, 10 mg/kg P-131 showed better antitumor effects than oxaliplatin in an HCT116 human colorectal xenograft mouse model without inducing toxicity. Moreover, the microdilution broth method was used to evaluate the antimicrobial properties of P-131 against Pseudomonas aeruginosa and Candida albicans. A biofilm eradication study was also performed using the crystal violet method and confocal laser scanning microscopy.
Collapse
Affiliation(s)
- Zong-Ling Niu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, China
| | - Si-Han Zhou
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, China
| | - Yuan-Yuan Wu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, China
| | - Tian-Tian Wu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, China
| | - Qi-Shuai Liu
- Animal Research and Resource Center, School of Life Sciences, Yunnan University, Kunming 650091, Yunnan, China
| | - Qi-Hua Zhao
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, China
| | - Hua Ji
- Oncology department, First People's Hospital of Yunnan Province, Kunming 650034, Yunnan, China
| | - Xiaoxia Ren
- Animal Research and Resource Center, School of Life Sciences, Yunnan University, Kunming 650091, Yunnan, China
| | - Ming-Jin Xie
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, China.
| |
Collapse
|
7
|
Lim YY, Zaidi AMA, Miskon A. Combining Copper and Zinc into a Biosensor for Anti-Chemoresistance and Achieving Osteosarcoma Therapeutic Efficacy. Molecules 2023; 28:molecules28072920. [PMID: 37049685 PMCID: PMC10096333 DOI: 10.3390/molecules28072920] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 04/14/2023] Open
Abstract
Due to its built-up chemoresistance after prolonged usage, the demand for replacing platinum in metal-based drugs (MBD) is rising. The first MBD approved by the FDA for cancer therapy was cisplatin in 1978. Even after nearly four and a half decades of trials, there has been no significant improvement in osteosarcoma (OS) therapy. In fact, many MBD have been developed, but the chemoresistance problem raised by platinum remains unresolved. This motivates us to elucidate the possibilities of the copper and zinc (CuZn) combination to replace platinum in MBD. Thus, the anti-chemoresistance properties of CuZn and their physiological functions for OS therapy are highlighted. Herein, we summarise their chelators, main organic solvents, and ligand functions in their structures that are involved in anti-chemoresistance properties. Through this review, it is rational to discuss their ligands' roles as biosensors in drug delivery systems. Hereafter, an in-depth understanding of their redox and photoactive function relationships is provided. The disadvantage is that the other functions of biosensors cannot be elaborated on here. As a result, this review is being developed, which is expected to intensify OS drugs with higher cure rates. Nonetheless, this advancement intends to solve the major chemoresistance obstacle towards clinical efficacy.
Collapse
Affiliation(s)
- Yan Yik Lim
- Faculty of Defence Science and Technology, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia
| | - Ahmad Mujahid Ahmad Zaidi
- Faculty of Defence Science and Technology, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia
| | - Azizi Miskon
- Faculty of Engineering, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia
| |
Collapse
|
8
|
Dinev D, Popova KB, Zhivkova T, Dyakova L, Abudalleh A, Alexandrova R, Culita DC, Mocanu T, Maxim C, Marinescu G. Synthesis, structural characterization, and cytotoxic activity in tumor cells of Cu(II) and Co(II) complexes with
o
‐vanillin amino acids Schiff bases. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Desislav Dinev
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Katya B. Popova
- Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria
| | - Tanya Zhivkova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Lora Dyakova
- Institute of Neurobiology Bulgarian Academy of Sciences Sofia Bulgaria
| | - Abedullkader Abudalleh
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Radostina Alexandrova
- Institute of Experimental Morphology, Pathology and Anthropology with Museum Bulgarian Academy of Sciences Sofia Bulgaria
| | - Daniela C. Culita
- Romanian Academy Ilie Murgulescu Institute of Physical Chemistry Bucharest Romania
| | - Teodora Mocanu
- Romanian Academy Ilie Murgulescu Institute of Physical Chemistry Bucharest Romania
| | - Catalin Maxim
- Faculty of Chemistry, Inorganic Chemistry Laboratory University of Bucharest Bucharest Romania
| | - Gabriela Marinescu
- Romanian Academy Ilie Murgulescu Institute of Physical Chemistry Bucharest Romania
| |
Collapse
|
9
|
Qi J, Luo Y, Zhou Q, Su G, Zhang X, Nie X, Lv M, Li W. Synthesis, structure and anticancer studies of Cu(Ⅱ) and Ni(Ⅱ) complexes based on 2-hydroxy-1-naphthaldehyde-4-aminoantipyrine Schiff-base. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
10
|
Copper in tumors and the use of copper-based compounds in cancer treatment. J Inorg Biochem 2021; 226:111634. [PMID: 34740035 DOI: 10.1016/j.jinorgbio.2021.111634] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/05/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
Copper homeostasis is strictly regulated by protein transporters and chaperones, to allow its correct distribution and avoid uncontrolled redox reactions. Several studies address copper as involved in cancer development and spreading (epithelial to mesenchymal transition, angiogenesis). However, being endogenous and displaying a tremendous potential to generate free radicals, copper is a perfect candidate, once opportunely complexed, to be used as a drug in cancer therapy with low adverse effects. Copper ions can be modulated by the organic counterpart, after complexed to their metalcore, either in redox potential or geometry and consequently reactivity. During the last four decades, many copper complexes were studied regarding their reactivity toward cancer cells, and many of them could be a drug choice for phase II and III in cancer therapy. Also, there is promising evidence of using 64Cu in nanoparticles as radiopharmaceuticals for both positron emission tomography (PET) imaging and treatment of hypoxic tumors. However, few compounds have gone beyond testing in animal models, and none of them got the status of a drug for cancer chemotherapy. The main challenge is their solubility in physiological buffers and their different and non-predictable mechanism of action. Moreover, it is difficult to rationalize a structure-based activity for drug design and delivery. In this review, we describe the role of copper in cancer, the effects of copper-complexes on tumor cell death mechanisms, and point to the new copper complexes applicable as drugs, suggesting that they may represent at least one component of a multi-action combination in cancer therapy.
Collapse
|
11
|
Recent progresses in Schiff bases as aqueous phase corrosion inhibitors: Design and applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214105] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
12
|
PPO-Inhibiting Herbicides and Structurally Relevant Schiff Bases: Evaluation of Inhibitory Activities against Human Protoporphyrinogen Oxidase. Processes (Basel) 2021. [DOI: 10.3390/pr9020383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The study of human protoporphyrinogen oxidase (hPPO) inhibition can contribute significantly to a better understanding of some pathogeneses (e.g., porphyria, herbicide exposure) and the development of anticancer agents. Therefore, we prepared new potential inhibitors with Schiff base structural motifs (2-hydroxybenzaldehyde-based Schiff bases 9–13 and chromanone derivatives 17–19) as structurally relevant to PPO herbicides. The inhibitory activities (represented by the half maximal inhibitory concentration (IC50) values) and enzymatic interactions (represented by the hPPO melting temperatures) of these synthetic compounds and commercial PPO herbicides used against hPPO were studied by a protoporphyrin IX fluorescence assay. In the case of PPO herbicides, significant hPPO inhibition and changes in melting temperature were observed for oxyfluorten, oxadiazon, lactofen, butafenacil, saflufenacil, oxadiargyl, chlornitrofen, and especially fomesafen. Nevertheless, the prepared compounds did not display significant inhibitory activity or changes in the hPPO melting temperature. However, a designed model of hPPO inhibitors based on the determined IC50 values and a docking study (by using AutoDock) found important parts of the herbicide structural motif for hPPO inhibition. This model could be used to better predict PPO herbicidal toxicity and improve the design of synthetic inhibitors.
Collapse
|