1
|
Springer C, Humayun D, Skouta R. Cuproptosis: Unraveling the Mechanisms of Copper-Induced Cell Death and Its Implication in Cancer Therapy. Cancers (Basel) 2024; 16:647. [PMID: 38339398 PMCID: PMC10854864 DOI: 10.3390/cancers16030647] [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: 01/05/2024] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024] Open
Abstract
Copper, an essential element for various biological processes, demands precise regulation to avert detrimental health effects and potential cell toxicity. This paper explores the mechanisms of copper-induced cell death, known as cuproptosis, and its potential health and disease implications, including cancer therapy. Copper ionophores, such as elesclomol and disulfiram, increase intracellular copper levels. This elevation triggers oxidative stress and subsequent cell death, offering potential implications in cancer therapy. Additionally, copper ionophores disrupt mitochondrial respiration and protein lipoylation, further contributing to copper toxicity and cell death. Potential targets and biomarkers are identified, as copper can be targeted to those proteins to trigger cuproptosis. The role of copper in different cancers is discussed to understand targeted cancer therapies using copper nanomaterials, copper ionophores, and copper chelators. Furthermore, the role of copper is explored through diseases such as Wilson and Menkes disease to understand the physiological mechanisms of copper. Exploring cuproptosis presents an opportunity to improve treatments for copper-related disorders and various cancers, with the potential to bring significant advancements to modern medicine.
Collapse
Affiliation(s)
- Chloe Springer
- Department of Biology, University of Massachusetts, Amherst, MA 01003, USA;
| | - Danish Humayun
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA;
| | - Rachid Skouta
- Department of Biology, University of Massachusetts, Amherst, MA 01003, USA;
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003, USA;
| |
Collapse
|
2
|
Wu H, Lin R, Hong L. Two lncRNA signatures with cuproptosis as a novel prognostic model and clinicopathological value for endometrioid endometrial adenocarcinoma. Aging (Albany NY) 2023; 15:14242-14262. [PMID: 38085674 PMCID: PMC10756113 DOI: 10.18632/aging.205299] [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: 06/21/2023] [Accepted: 11/02/2023] [Indexed: 12/21/2023]
Abstract
OBJECTIVE Cuproptosis may contribute to tumorigenesis. However, the predictive value and therapeutic significance of cuproptosis-related lncRNAs (CRLs) in endometrioid endometrial adenocarcinoma (EEA) remains unknown. METHODS We obtained RNA-seq data from TCGA database and searched the Literature to identify cuproptosis-related genes. Using machine learning models, we identified prognostic lncRNAs for cuproptosis. Immune properties and drug sensitivity were investigated based on these signatures. Further, a ceRNA network was constructed by bioinformatics and in vitro experiments were performed. RESULTS We determined two cuproptosis-related signatures to build the prognostic model in EEA. Afterward, the risk scores of two cuproptosis-related signatures were associated with clinicopathological molecular typing and as independent prognostic factors for EEA. In addition, we observed significant differences in immune function, checkpoints, and CD8+ T lymphocyte infiltration between the two risk groups. Furthermore, chemotherapy drugs such as AKT inhibitors exhibited lower IC50 values in the high-risk group. We speculate that ACOXL-AS1 can be served as an endogenous 'sponge' to regulate the expression of MTF1 by miR-421. Through in vitro experiments, we preliminarily validated the ceRNA network relationship in the cellular model. CONCLUSION In EEAs, this study proposed a broad molecular signature of CRLs are promising biomarkers for predicting clinical outcomes and therapeutic responses.
Collapse
Affiliation(s)
- Hongrong Wu
- Department of Pathology, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Ruilin Lin
- Department of Pathology, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| | - Liangli Hong
- Department of Pathology, The First Affiliated Hospital of Shantou University Medical College, Shantou 515041, Guangdong, China
| |
Collapse
|
3
|
Dürig J, Calcagni M, Buschmann J. Transition metals in angiogenesis - A narrative review. Mater Today Bio 2023; 22:100757. [PMID: 37593220 PMCID: PMC10430620 DOI: 10.1016/j.mtbio.2023.100757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/14/2023] [Accepted: 07/31/2023] [Indexed: 08/19/2023] Open
Abstract
The aim of this paper is to offer a narrative review of the literature regarding the influence of transition metals on angiogenesis, excluding lanthanides and actinides. To our knowledge there are not any reviews up to date offering such a summary, which inclined us to write this paper. Angiogenesis describes the process of blood vessel formation, which is an essential requirement for human growth and development. When the complex interplay between pro- and antiangiogenic mediators falls out of balance, angiogenesis can quickly become harmful. As it is so fundamental, both its inhibition and enhancement take part in various diseases, making it a target for therapeutic treatments. Current methods come with limitations, therefore, novel agents are constantly being researched, with metal agents offering promising results. Various transition metals have already been investigated in-depth, with studies indicating both pro- and antiangiogenic properties, respectively. The transition metals are being applied in various formulations, such as nanoparticles, complexes, or scaffold materials. Albeit the increasing attention this field is receiving, there remain many unanswered questions, mostly regarding the molecular mechanisms behind the observed effects. Notably, approximately half of all the transition metals have not yet been investigated regarding potential angiogenic effects. Considering the promising results which have already been established, it should be of great interest to begin investigating the remaining elements whilst also further analyzing the established effects.
Collapse
Affiliation(s)
- Johannes Dürig
- University of Zürich, Faculty of Medicine, Pestalozzistrasse 3, 8032, Zurich, Switzerland
- University Hospital of Zürich, Department of Plastic Surgery and Hand Surgery, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Maurizio Calcagni
- University Hospital of Zürich, Department of Plastic Surgery and Hand Surgery, Rämistrasse 100, 8091, Zürich, Switzerland
| | - Johanna Buschmann
- University Hospital of Zürich, Department of Plastic Surgery and Hand Surgery, Rämistrasse 100, 8091, Zürich, Switzerland
| |
Collapse
|
4
|
Hu X, Wang M, Shi S, Keerthi Raja M, Gupta G, Chen H, Xu P. Polymer/copper nanocomplex-induced lysosomal cell death promotes tumor lymphocyte infiltration and synergizes anti-PD-L1 immunotherapy for triple-negative breast cancer. Biomater Sci 2023; 11:5641-5652. [PMID: 37409576 PMCID: PMC10530473 DOI: 10.1039/d3bm00627a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Our previous research discovered that combining the PDA-PEG polymer with copper ions can selectively kill cancer cells. However, the precise mechanism by which this combination functions was not fully understood. This study revealed that the PDA-PEG polymer and copper ions form complementary PDA-PEG/copper (Poly/Cu) nanocomplexes by facilitating copper ion uptake and lysosomal escape. An in vitro study found that Poly/Cu killed 4T1 cells through a lysosome cell death pathway. Furthermore, Poly/Cu inhibited both the proteasome function and autophagy pathway and induced immunogenic cell death (ICD) in 4T1 cells. The Poly/Cu induced ICD coupled with the checkpoint blockade effect of the anti-PD-L1 antibody (aPD-L1) synergistically promoted immune cell penetration into the tumor mass. Benefiting from the tumor-targeting effect and cancer cell-selective killing effect of Poly/Cu complexes, the combinatory treatment of aPD-L1 and Poly/Cu effectively suppressed the progression of triple-negative breast cancer without inducing systemic side effects.
Collapse
Affiliation(s)
- Xiangxiang Hu
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA.
| | - Mingming Wang
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA.
| | - Shanshan Shi
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA.
| | - Manikanda Keerthi Raja
- Department of Biological Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA
| | - Gourab Gupta
- Department of Biological Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA
| | - Hexin Chen
- Department of Biological Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA
| | - Peisheng Xu
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, 715 Sumter St., Columbia, SC 29208, USA.
| |
Collapse
|
5
|
Liu Y, Wang J, Jiang M. Copper-related genes predict prognosis and characteristics of breast cancer. Front Immunol 2023; 14:1145080. [PMID: 37180167 PMCID: PMC10172490 DOI: 10.3389/fimmu.2023.1145080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 04/10/2023] [Indexed: 05/15/2023] Open
Abstract
Background The role of copper in cancer treatment is multifaceted, with copper homeostasis-related genes associated with both breast cancer prognosis and chemotherapy resistance. Interestingly, both elimination and overload of copper have been reported to have therapeutic potential in cancer treatment. Despite these findings, the exact relationship between copper homeostasis and cancer development remains unclear, and further investigation is needed to clarify this complexity. Methods The pan-cancer gene expression and immune infiltration analysis were performed using the Cancer Genome Atlas Program (TCGA) dataset. The R software packages were employed to analyze the expression and mutation status of breast cancer samples. After constructing a prognosis model to separate breast cancer samples by LASSO-Cox regression, we examined the immune statement, survival status, drug sensitivity and metabolic characteristics of the high- and low-copper related genes scoring groups. We also studied the expression of the constructed genes using the human protein atlas database and analyzed their related pathways. Finally, copper staining was performed with the clinical sample to investigate the distribution of copper in breast cancer tissue and paracancerous tissue. Results Pan-cancer analysis showed that copper-related genes are associated with breast cancer, and the immune infiltration profile of breast cancer samples is significantly different from that of other cancers. The essential copper-related genes of LASSO-Cox regression were ATP7B (ATPase Copper Transporting Beta) and DLAT (Dihydrolipoamide S-Acetyltransferase), whose associated genes were enriched in the cell cycle pathway. The low-copper related genes scoring group presented higher levels of immune activation, better probabilities of survival, enrichment in pathways related to pyruvate metabolism and apoptosis, and higher sensitivity to chemotherapy drugs. Immunohistochemistry staining showed high protein expression of ATP7B and DLAT in breast cancer samples. The copper staining showed copper distribution in breast cancer tissue. Conclusion This study displayed the potential impacts of copper-related genes on the overall survival, immune infiltration, drug sensitivity and metabolic profile of breast cancer, which could predict patients' survival and tumor statement. These findings may serve to support future research efforts aiming at improving the management of breast cancer.
Collapse
Affiliation(s)
- Yi Liu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jiandong Wang
- Department of General Surgery, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Mengxi Jiang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
| |
Collapse
|
6
|
Guan D, Zhao L, Shi X, Ma X, Chen Z. Copper in cancer: From pathogenesis to therapy. Biomed Pharmacother 2023; 163:114791. [PMID: 37105071 DOI: 10.1016/j.biopha.2023.114791] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 04/29/2023] Open
Abstract
One of the basic trace elements for the structure and metabolism of human tissue is copper. However, as a heavy metal, excessive intake or abnormal accumulation of copper in the body can cause inevitable damage to the organism because copper can result in direct injury to various cell components or disruption of the redox balance, eventually leading to cell death. Interestingly, a growing body of research reports that diverse cancers have raised serum and tumor copper levels. Tumor cells depend on more copper for their metabolism than normal cells, and a decrease in copper or copper overload can have a detrimental effect on tumor cells. New modalities for identifying and characterizing copper-dependent signals offer translational opportunities for tumor therapy, but their mechanisms remain unclear. Therefore, this article summarizes what we currently know about the correlation between copper and cancer and describes the characteristics of copper metabolism in tumor cells and the prospective application of copper-derived therapeutics.
Collapse
Affiliation(s)
- Defeng Guan
- The First Clinical Medical School of Lanzhou University, Lanzhou, China; The First Hospital of Lanzhou University, Lanzhou, China; Gansu key Laboratory of Reproductive Medicine and Embryology, Lanzhou, China
| | - Lihui Zhao
- The First Clinical Medical School of Lanzhou University, Lanzhou, China; The First Hospital of Lanzhou University, Lanzhou, China; Gansu key Laboratory of Reproductive Medicine and Embryology, Lanzhou, China
| | - Xin Shi
- The First Clinical Medical School of Lanzhou University, Lanzhou, China; The First Hospital of Lanzhou University, Lanzhou, China; Gansu key Laboratory of Reproductive Medicine and Embryology, Lanzhou, China
| | - Xiaoling Ma
- The First Clinical Medical School of Lanzhou University, Lanzhou, China; The First Hospital of Lanzhou University, Lanzhou, China; Gansu key Laboratory of Reproductive Medicine and Embryology, Lanzhou, China.
| | - Zhou Chen
- The First Clinical Medical School of Lanzhou University, Lanzhou, China; The First Hospital of Lanzhou University, Lanzhou, China.
| |
Collapse
|
7
|
Zehra S, Khan HY, Roisnel T, Tabassum S, Arjmand F. Structural insights into interactions of new polymeric (μ-oxo) bridged Cu(II) complexes of taurine with yeast tRNA by spectroscopic and computational approaches and its application towards chemoresistant cancer lines. Int J Biol Macromol 2023; 240:124429. [PMID: 37062375 DOI: 10.1016/j.ijbiomac.2023.124429] [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: 01/19/2023] [Revised: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 04/18/2023]
Abstract
RNA-targeted drugs are considered as safe treatment option for the cure of many chronic diseases preventing off-targeted delivery and acute toxic manifestations. FDA has approved many such RNA therapies in different phases of clinical trials, validating their use for the treatment of various chronic diseases. We report herein, new water-soluble (μ-oxo) bridged polymeric Cu(II) complexes of taurine (2-aminoethane sulfonic acid) complexes 1 and 2. The therapeutic potency of 1 and 2 was ascertained by studying biophysical interactions with tRNA/ct-DNA. The experimental results demonstrated that the complexes interacted avidly to nucleic acids through intercalation mode depicting a specific preference for tRNA in comparison to ct-DNA and, moreover 2 showed higher binding propensity than 1. The electrophoretic behaviour of the complexes with plasmid pBR322 DNA and tRNA were examined by gel mobility assay that revealed a concentration-dependent activity with complex 2 performing more efficient cleavage as compared to complex 1. Cytotoxicity results on cancer cell strains displayed higher cytotoxicity than complex 1 against treated cancer cells. The synthesized copper(II) taurine complexes have met the basic criteria of anticancer drug design as they are structurally well-characterized, exhibiting good solubility in water, lipophilic in nature with superior intercalating propensity towards tRNA and cytotoxic in nature.
Collapse
Affiliation(s)
- Siffeen Zehra
- Department of Chemistry Aligarh Muslim University, Aligarh, U.P. 202002, India
| | - Huzaifa Yasir Khan
- Department of Chemistry Aligarh Muslim University, Aligarh, U.P. 202002, India
| | - Thierry Roisnel
- Institut des Sciences Chimiques de Rennes, UMR 6226, Université de Rennes 1, Campus de Beaulieu Batiment 10B, Bureau, 15335042 Rennes, France
| | - Sartaj Tabassum
- Department of Chemistry Aligarh Muslim University, Aligarh, U.P. 202002, India
| | - Farukh Arjmand
- Department of Chemistry Aligarh Muslim University, Aligarh, U.P. 202002, India.
| |
Collapse
|
8
|
Adhikari HS, Garai A, Yadav PN. Synthesis, characterization, and anticancer activity of chitosan functionalized isatin based thiosemicarbazones, and their copper(II) complexes. Carbohydr Res 2023; 526:108796. [PMID: 36944301 DOI: 10.1016/j.carres.2023.108796] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/17/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
The one-pot synthetic method of condensation of isatin and 5-chloroisatin on to amino group at C2 position of the pyranose ring chitosan in chitosan thiosemicarbazide was employed to get these chitosan thiosemicarbazones (TSCs). The partial incorporation of thiosemicarbazone moiety in chitosan was shown by FT-IR and 13C NMR spectroscopic studies, powder X ray diffraction, and CHNS microanalysis. The NOS tridentate coordination behavior of TSCs with copper(II) chloride to give the square planar complexes was established by FT-IR spectroscopic data, magnetic susceptibility measurement, and EPR spectral analysis. The thermal stability of these biomaterial chitosan derivatives till the commencement of chain disruption at 200C was shown by thermal studies. As revealed by colorimetric MTT assays, the in vitro anticancer activity enhancement accorded with the functionalization of chitosan as isatin based chitosan TSCs, and NOS tridentate coordination of TSCs plus a monodentate coordination of chloride ion with copper(II) ion. Only a marginal activity difference of these compounds was observed against the tumorigenic MDCK and MCF-7 cancer cell lines, irrespective of unit molecular weight (Mw) and degree of deacetylation (DDA) of ring chitosan. The 5-chloroisatin chitosan TSCs showed better activity than isatin chitosan TSCs against both the cell lines.
Collapse
Affiliation(s)
- Hari Sharan Adhikari
- Institute of Engineering, Pashchimanchal Campus, Department of Applied Sciences, Tribhuvan University, Pokhara, Nepal
| | - Aditya Garai
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, India
| | - Paras Nath Yadav
- Central Department of Chemistry, Tribhuvan University, Kathmandu, Nepal.
| |
Collapse
|
9
|
Relationships between the Content of Micro- and Macroelements in Animal Samples and Diseases of Different Etiologies. Animals (Basel) 2023; 13:ani13050852. [PMID: 36899709 PMCID: PMC10000063 DOI: 10.3390/ani13050852] [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: 11/15/2022] [Revised: 02/14/2023] [Accepted: 02/17/2023] [Indexed: 03/03/2023] Open
Abstract
Many of the micro- and macro-elements (MMEs) required by the body are found in environmental objects in concentrations different from their original concentration that can lead to dangerous animal diseases ("microelementoses"). The aim was to study the features of MME (accumulating in wild and exotic animals) in connection with particular diseases. The work using 67 mammal species from four Russian zoological institutions was completed in 2022. Studies of 820 cleaned and defatted samples (hair, fur, etc.) after "wet-acid-ashing" on an electric stove and in a muffle furnace were performed using a Kvant-2A atomic absorption spectrometer. The content of zinc, copper, iron, cadmium, lead, and arsenic was assessed. The level of MME accumulation in the animal body contributes not only to the MME status and the development of various concomitant diseases, but the condition itself can occur by intake of a number of micronutrients and/or drugs. Particular correlations between the accumulation of Zn and skin, oncological diseases, Cu-musculoskeletal, cardiovascular diseases, Fe-oncological diseases, Pb-metabolic, nervous, oncological diseases, and Cd-cardiovascular diseases were established. Therefore, monitoring of the MME status of the organism must be carried out regularly (optimally once every 6 months).
Collapse
|
10
|
Markowski A, Zaremba-Czogalla M, Jaromin A, Olczak E, Zygmunt A, Etezadi H, Boyd BJ, Gubernator J. Novel Liposomal Formulation of Baicalein for the Treatment of Pancreatic Ductal Adenocarcinoma: Design, Characterization, and Evaluation. Pharmaceutics 2023; 15:pharmaceutics15010179. [PMID: 36678808 PMCID: PMC9865389 DOI: 10.3390/pharmaceutics15010179] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/20/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023] Open
Abstract
Pancreatic cancer (PC) is one of the deadliest cancers so there is an urgent need to develop new drugs and therapies to treat it. Liposome-based formulations of naturally-derived bioactive compounds are promising anticancer candidates due to their potential for passive accumulation in tumor tissues, protection against payload degradation, and prevention of non-specific toxicity. We chose the naturally-derived flavonoid baicalein (BAI) due to its promising effect against pancreatic ductal adenocarcinoma (PDAC) and encapsulated it into a liposomal bilayer using the passive loading method, with an almost 90% efficiency. We performed a morphological and stability analysis of the obtained BAI liposomal formulation and evaluated its activity on two-dimensional and three-dimensional pancreatic cell models. As the result, we obtained a stable BAI-encapsulated liposomal suspension with a size of 100.9 nm ± 2.7 and homogeneity PDI = 0.124 ± 0.02, suitable for intravenous administration. Furthermore, this formulation showed high cytotoxic activity towards AsPC-1 and BxPC-3 PDAC cell lines (IC50 values ranging from 21 ± 3.6 µM to 27.6 ± 4.1 µM), with limited toxicity towards normal NHDF cells and a lack of hemolytic activity. Based on these results, this new BAI liposomal formulation is an excellent candidate for potential anti-PDAC therapy.
Collapse
Affiliation(s)
- Adam Markowski
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
- Correspondence: (A.M.); (A.J.)
| | - Magdalena Zaremba-Czogalla
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
| | - Anna Jaromin
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
- Correspondence: (A.M.); (A.J.)
| | - Ewa Olczak
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
| | - Adrianna Zygmunt
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
| | - Haniyeh Etezadi
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Ben J. Boyd
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Jerzy Gubernator
- Department of Lipids and Liposomes, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
| |
Collapse
|
11
|
Capriotti G, Piccardo A, Giovannelli E, Signore A. Targeting Copper in Cancer Imaging and Therapy: A New Theragnostic Agent. J Clin Med 2022; 12:jcm12010223. [PMID: 36615024 PMCID: PMC9821557 DOI: 10.3390/jcm12010223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Copper is required for cancer cell proliferation and tumor angiogenesis. Copper-64 radionuclide (64Cu), a form of copper chloride (64CuCl2), is rapidly emerging as a diagnostic PET/CT tracer in oncology. It may also represent an interesting alternative to gallium-68 (68Ga) as a radionuclide precursor for labelling radiopharmaceuticals used to investigate neuroendocrine tumors and prostate cancer. This emerging interest is also related to the nuclear properties of 64CuCl2 that make it an ideal theragnostic nuclide. Indeed, 64CuCl2 emits β+ and β- particles together with high-linear-energy-transfer Auger electrons, suggesting the therapeutic potential of 64CuCl2 for the radionuclide cancer therapy of copper-avid tumors. Recently, 64CuCl2 was successfully used to image prostate cancer, bladder cancer, glioblastoma multiforme (GBM), and non-small cell lung carcinoma in humans. Copper cancer uptake was related to the expression of human copper transport 1 (hCTR1) on the cancer cell surface. Biodistribution, toxicology and radiation safety studies showed its radiation and toxicology safety. Based on the findings from the preclinical research studies, 64CuCl2 PET/CT also holds potential for the diagnostic imaging of human hepatocellular carcinoma (HCC), malignant melanoma, and the detection of the intracranial metastasis of copper-avid tumors based on the low physiological background of radioactive copper uptake in the brain.
Collapse
Affiliation(s)
- Gabriela Capriotti
- Department of Medical-Surgical Sciences and of Translational Medicine, Sapienza University of Rome, Nuclear Medicine Unit Sant’Andrea University Hospital, 00189 Rome, Italy
- Correspondence:
| | - Arnoldo Piccardo
- S.C. Medicina Nucleare Ente Ospedaliero “Ospedali Galliera”, 16128 Genova, Italy
| | - Elena Giovannelli
- Department of Medical-Surgical Sciences and of Translational Medicine, Sapienza University of Rome, Nuclear Medicine Unit Sant’Andrea University Hospital, 00189 Rome, Italy
| | - Alberto Signore
- Department of Medical-Surgical Sciences and of Translational Medicine, Sapienza University of Rome, Nuclear Medicine Unit Sant’Andrea University Hospital, 00189 Rome, Italy
| |
Collapse
|
12
|
Apoptosis, Proliferation, and Autophagy Are Involved in Local Anesthetic-Induced Cytotoxicity of Human Breast Cancer Cells. Int J Mol Sci 2022; 23:ijms232415455. [PMID: 36555096 PMCID: PMC9779437 DOI: 10.3390/ijms232415455] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/05/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
Breast cancer accounts for almost one quarter of all female cancers worldwide, and more than 90% of those who are diagnosed with breast cancer undergo mastectomy or breast conservation surgery. Local anesthetics effectively inhibit the invasion of cancer cells at concentrations that are used in surgical procedures. The limited treatment options for triple-negative breast cancer (TNBC) demonstrate unmet clinical needs. In this study, four local anesthetics, lidocaine, levobupivacaine, bupivacaine, and ropivacaine, were applied to two breast tumor cell types, TNBC MDA-MB-231 cells and triple-positive breast cancer BT-474 cells. In addition to the induction of apoptosis and the suppression of the cellular proliferation rate, the four local anesthetics decreased the levels of reactive oxygen species and increased the autophagy elongation indicator in both cell types. Our combination index analysis with doxorubicin showed that ropivacaine had a synergistic effect on the two cell types, and lidocaine had a synergistic effect only in MDA-MB-231 cells; the others had no synergistic effects on doxorubicin. Lidocaine contributed significantly to the formation of autophagolysosomes in a dose-dependent manner in MDA-MB-231 cells but not in BT-474 cells. Our study demonstrated that the four local anesthetics can reduce tumor growth and proliferation and promote apoptosis and autophagy.
Collapse
|
13
|
Sagkrioti E, Biz GM, Takan I, Asfa S, Nikitaki Z, Zanni V, Kars RH, Hellweg CE, Azzam EI, Logotheti S, Pavlopoulou A, Georgakilas AG. Radiation Type- and Dose-Specific Transcriptional Responses across Healthy and Diseased Mammalian Tissues. Antioxidants (Basel) 2022; 11:2286. [PMID: 36421472 PMCID: PMC9687520 DOI: 10.3390/antiox11112286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 08/30/2023] Open
Abstract
Ionizing radiation (IR) is a genuine genotoxic agent and a major modality in cancer treatment. IR disrupts DNA sequences and exerts mutagenic and/or cytotoxic properties that not only alter critical cellular functions but also impact tissues proximal and distal to the irradiated site. Unveiling the molecular events governing the diverse effects of IR at the cellular and organismal levels is relevant for both radiotherapy and radiation protection. Herein, we address changes in the expression of mammalian genes induced after the exposure of a wide range of tissues to various radiation types with distinct biophysical characteristics. First, we constructed a publicly available database, termed RadBioBase, which will be updated at regular intervals. RadBioBase includes comprehensive transcriptomes of mammalian cells across healthy and diseased tissues that respond to a range of radiation types and doses. Pertinent information was derived from a hybrid analysis based on stringent literature mining and transcriptomic studies. An integrative bioinformatics methodology, including functional enrichment analysis and machine learning techniques, was employed to unveil the characteristic biological pathways related to specific radiation types and their association with various diseases. We found that the effects of high linear energy transfer (LET) radiation on cell transcriptomes significantly differ from those caused by low LET and are consistent with immunomodulation, inflammation, oxidative stress responses and cell death. The transcriptome changes also depend on the dose since low doses up to 0.5 Gy are related with cytokine cascades, while higher doses with ROS metabolism. We additionally identified distinct gene signatures for different types of radiation. Overall, our data suggest that different radiation types and doses can trigger distinct trajectories of cell-intrinsic and cell-extrinsic pathways that hold promise to be manipulated toward improving radiotherapy efficiency and reducing systemic radiotoxicities.
Collapse
Affiliation(s)
- Eftychia Sagkrioti
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou, 15780 Athens, Greece
- Biology Department, National and Kapodistrian University of Athens (NKUA), 15784 Athens, Greece
| | - Gökay Mehmet Biz
- Department of Technical Programs, Izmir Vocational School, Dokuz Eylül University, Buca, Izmir 35380, Turkey
| | - Işıl Takan
- Izmir Biomedicine and Genome Center (IBG), Balcova, Izmir 35340, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Balcova, Izmir 35340, Turkey
| | - Seyedehsadaf Asfa
- Izmir Biomedicine and Genome Center (IBG), Balcova, Izmir 35340, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Balcova, Izmir 35340, Turkey
| | - Zacharenia Nikitaki
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou, 15780 Athens, Greece
| | - Vassiliki Zanni
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou, 15780 Athens, Greece
| | - Rumeysa Hanife Kars
- Department of Biomedical Engineering, Istanbul Medipol University, Istanbul 34810, Turkey
| | - Christine E. Hellweg
- German Aerospace Center (DLR), Institute of Aerospace Medicine, Radiation Biology, Linder Höhe, D-51147 Köln, Germany
| | | | - Stella Logotheti
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou, 15780 Athens, Greece
| | - Athanasia Pavlopoulou
- Izmir Biomedicine and Genome Center (IBG), Balcova, Izmir 35340, Turkey
- Izmir International Biomedicine and Genome Institute, Dokuz Eylül University, Balcova, Izmir 35340, Turkey
| | - Alexandros G. Georgakilas
- DNA Damage Laboratory, Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University of Athens (NTUA), Zografou, 15780 Athens, Greece
| |
Collapse
|
14
|
Carlson AL, Carrazco-Carrillo J, Loder A, Elkhadragy L, Schachtschneider KM, Padilla-Benavides T. The Oncopig as an Emerging Model to Investigate Copper Regulation in Cancer. Int J Mol Sci 2022; 23:14012. [PMID: 36430490 PMCID: PMC9697225 DOI: 10.3390/ijms232214012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Emerging evidence points to several fundamental contributions that copper (Cu) has to promote the development of human pathologies such as cancer. These recent and increasing identification of the roles of Cu in cancer biology highlights a promising field in the development of novel strategies against cancer. Cu and its network of regulatory proteins are involved in many different contextual aspects of cancer from driving cell signaling, modulating cell cycle progression, establishing the epithelial-mesenchymal transition, and promoting tumor growth and metastasis. Human cancer research in general requires refined models to bridge the gap between basic science research and meaningful clinical trials. Classic studies in cultured cancer cell lines and animal models such as mice and rats often present caveats when extended to humans due to inherent genetic and physiological differences. However, larger animal models such as pigs are emerging as more appropriate tools for translational research as they present more similarities with humans in terms of genetics, anatomical structures, organ sizes, and pathological manifestations of diseases like cancer. These similarities make porcine models well-suited for addressing long standing questions in cancer biology as well as in the arena of novel drug and therapeutic development against human cancers. With the emergent roles of Cu in human health and pathology, the pig presents an emerging and valuable model to further investigate the contributions of this metal to human cancers. The Oncopig Cancer Model is a transgenic swine model that recapitulates human cancer through development of site and cell specific tumors. In this review, we briefly outline the relationship between Cu and cancer, and how the novel Oncopig Cancer Model may be used to provide a better understanding of the mechanisms and causal relationships between Cu and molecular targets involved in cancer.
Collapse
Affiliation(s)
- Alyssa L. Carlson
- Department of Molecular Biology and Biochemistry, Wesleyan University, Middletown, CT 06459, USA
| | - Jaime Carrazco-Carrillo
- Department of Molecular Biology and Biochemistry, Wesleyan University, Middletown, CT 06459, USA
| | - Aaron Loder
- Department of Molecular Biology and Biochemistry, Wesleyan University, Middletown, CT 06459, USA
| | - Lobna Elkhadragy
- Department of Radiology, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Kyle M. Schachtschneider
- Department of Radiology, University of Illinois at Chicago, Chicago, IL 60607, USA
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, Chicago, IL 60607, USA
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL 61820, USA
| | | |
Collapse
|
15
|
Adhikari HS, Garai A, Manandhar KD, Yadav PN. Pyridine-Based NNS Tridentate Chitosan Thiosemicarbazones and Their Copper(II) Complexes: Synthesis, Characterization, and Anticancer Activity. ACS OMEGA 2022; 7:30978-30988. [PMID: 36092560 PMCID: PMC9453788 DOI: 10.1021/acsomega.2c02966] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/05/2022] [Indexed: 06/01/2023]
Abstract
Chitosan-functionalized pyridine-based thiosemicarbazones and their copper(II) complexes have been found to own a substantial antiproliferative activity against the tumorigenic Madin Darby canine kidney (MDCK) and MCF-7 cancer cell lines. In the current study, chitosan oligosaccharide (CS) (87% DDA, Mw < 3000 Da) and crab shell chitosan (CCS) (67% DDA, M w 350 kDa) were functionalized as chitosan pyridine-2-thiosemicarbazones and chitosan 2-acetyl pyridine-2-thiosemicarbazones, and their copper(II) complexes were synthesized. The formation of chitosan thiosemicarbazones and their NNS tridentate behavior to give the square planar copper(II) chitosan thiosemicarbazone complexes were established by spectroscopic studies, powder X-ray diffraction, elemental analysis, and magnetic moment measurements. The thermal study showed a marked stability of these derivatives before the outset of chitosan backbone degradation at 200 °C. The colorimetric MTT assay revealed a higher activity of CS thiosemicarbazones, viz., CSTSC series (IC50 375-381 μg mL-1 in the MDCK cell line and 281-355 μg mL-1 in the MCF-7 cell line) than that of high-molecular-weight CCS thiosemicarbazones, viz., CCSTSC series (IC50 335-400 μg mL-1 in the MDCK cell line and 365-400 μg mL-1 in the MCF-7 cell line), showing an enhanced activity with a decrease in Mw and an increase in DDA of constituent chitosan, a higher activity of both of these series of thiosemicarbazones than that of their native chitosan, viz., CS (IC50 370 μg mL-1 in the MCF-7 cell line and >400 μg mL-1 in the MDCK cell line) and CCS (IC50 > 400 μg mL-1 in both cell lines), and a higher activity of the Cu-CSTSC complexes (IC50 322-342 μg mL-1 in the MDCK cell line and 278-352 μg mL-1 in the MCF-7 cell line) and Cu-CCSTSC complexes (IC50 274-400 μg mL-1 in the MDCK cell line and 231-352 μg mL-1 in the MCF-7 cell line) than that of their respective ligands.
Collapse
Affiliation(s)
- Hari Sharan Adhikari
- Institute
of Engineering, Department of Applied Sciences, Tribhuvan University, Pashchimanchal Campus, Pokhara33700, Nepal
| | - Aditya Garai
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore560012, India
| | | | - Paras Nath Yadav
- Central
Department of Chemistry, Tribhuvan University, Kathmandu44600, Nepal
| |
Collapse
|
16
|
Lu Y, Pan Q, Gao W, Pu Y, He B. Reversal of cisplatin chemotherapy resistance by glutathione-resistant copper-based nanomedicine via cuproptosis. J Mater Chem B 2022; 10:6296-6306. [PMID: 35904024 DOI: 10.1039/d2tb01150f] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Platinum-based chemotherapy is widely used to treat various cancers. However, exogenous platinum is likely to cause severe side effects and drug resistance induced by upregulated glutathione (GSH) in cancer cells poses a threat to the management of cancer progression and recurrence. Anticancer copper-organic complexes are excellent candidates to substitute platinum-based chemotherapeutics, exhibiting lower systemic toxicity and even overcoming platinum-based chemotherapy resistance. Here, we report the GSH-resistance of copper(II) bis(diethyldithiocarbamate) (CuET) and its reversal of cisplatin resistance in non-small-cell lung cancer via cuproptosis. Electrochemistry and UV-vis spectroscopy studies demonstrate that CuET possesses a lower reduction potential and the reaction inertness with GSH. Importantly, CuET overcomes the drug resistance of A549/DDP cells and the anticancer effect is hardly affected by intracellular GSH levels. To improve the solubility and bioavailability, bovine serum albumin-stabilized CuET nanoparticles (NPs) are prepared and they have a high drug loading content of 27.5% and excellent physiological stability. In vitro studies manifest that CuET NPs augment the distributions in the cytosol and cytoskeleton, inducing cell death via cuproptosis in A549/DDP cells, which is distinctly different from the apoptosis pattern induced by cisplatin. In vivo antitumor evaluation shows that the nanomedicine has superior biosafety and potent antitumor activity in a cisplatin-resistant tumor model. Our study suggests that copper-organic complex-based nanosystems could be a powerful toolbox to tackle the platinum-based drug resistance and systemic toxicity concerns.
Collapse
Affiliation(s)
- Yao Lu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
| | - Qingqing Pan
- School of Preclinical Medicine, Chengdu University, Chengdu, 610106, China
| | - Wenxia Gao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325027, China
| | - Yuji Pu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
| | - Bin He
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China.
| |
Collapse
|
17
|
Sandahl TD, Gormsen LC, Kjærgaard K, Vendelbo MH, Munk DE, Munk OL, Bender D, Keiding S, Vase KH, Frisch K, Vilstrup H, Ott P. The pathophysiology of Wilson's disease visualized: A human 64 Cu PET study. Hepatology 2022; 75:1461-1470. [PMID: 34773664 PMCID: PMC9305563 DOI: 10.1002/hep.32238] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND AIMS Wilson's disease (WD) is a genetic disease with systemic accumulation of copper that leads to symptoms from the liver and brain. However, the underlying defects in copper transport kinetics are only partly understood. We sought to quantify hepatic copper turnover in patients with WD compared with heterozygote and control subjects using PET with copper-64 (64 Cu) as a tracer. Furthermore, we assessed the diagnostic potential of the method. APPROACH AND RESULTS Nine patients with WD, 5 healthy heterozygote subjects, and 8 healthy controls were injected with an i.v. bolus of 64 Cu followed by a 90-min dynamic PET scan of the liver and static whole-body PET/CT scans after 1.5, 6, and 20 h. Blood 64 Cu concentrations were measured in parallel. Hepatic copper retention and redistribution were evaluated by standardized uptake values (SUVs). At 90 min, hepatic SUVs were similar in the three groups. In contrast, at 20 h postinjection, the SUV in WD patients (mean ± SEM, 31 ± 4) was higher than in heterozygotes (24 ± 3) and controls (21 ± 4; p < 0.001). An SUV-ratio of hepatic 64 Cu concentration at 20 and 1.5 h completely discriminated between WD patients and control groups (p < 0.0001; ANOVA). By Patlak analysis of the initial 90 min of the PET scan, the steady-state hepatic clearance of 64 Cu was estimated to be slightly lower in patients with WD than in controls (p = 0.04). CONCLUSIONS 64 Cu PET imaging enables visualization and quantification of the hepatic copper retention characteristic for WD patients. This method represents a valuable tool for future studies of WD pathophysiology, and may assist the development of therapies, and accurate diagnosis.
Collapse
Affiliation(s)
| | - Lars C. Gormsen
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Kristoffer Kjærgaard
- Department of Hepatology and GastroenterologyAarhus University HospitalAarhusDenmark
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Mikkel Holm Vendelbo
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Ditte Emilie Munk
- Department of Hepatology and GastroenterologyAarhus University HospitalAarhusDenmark
| | - Ole Lajord Munk
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Dirk Bender
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Susanne Keiding
- Department of Hepatology and GastroenterologyAarhus University HospitalAarhusDenmark
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Karina H. Vase
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Kim Frisch
- Department of Nuclear Medicine and PET‐CentreAarhus University HospitalAarhusDenmark
| | - Hendrik Vilstrup
- Department of Hepatology and GastroenterologyAarhus University HospitalAarhusDenmark
| | - Peter Ott
- Department of Hepatology and GastroenterologyAarhus University HospitalAarhusDenmark
| |
Collapse
|
18
|
New azamacrocyclic binuclear Cu(II) aminocarboxylate complexes: Structural, magnetic, spectral and antiproliferative studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
19
|
Lee D, Ha J, Kang M, Yang Z, Jiang W, Kim BYS. Strategies of Perturbing Ion Homeostasis for Cancer Therapy. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202100189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- DaeYong Lee
- Department of Neurosurgery The University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - JongHoon Ha
- Department of Radiation Oncology The University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Minjeong Kang
- Department of Radiation Oncology The University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Zhaogang Yang
- Department of Radiation Oncology The University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Wen Jiang
- Department of Radiation Oncology The University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| | - Betty Y. S. Kim
- Department of Neurosurgery The University of Texas MD Anderson Cancer Center Houston TX 77030 USA
| |
Collapse
|
20
|
ASHRAF J, RIAZ MA. Biological potential of copper complexes: a review. Turk J Chem 2022; 46:595-623. [PMID: 37720617 PMCID: PMC10503981 DOI: 10.55730/1300-0527.3356] [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: 06/13/2021] [Revised: 06/16/2022] [Accepted: 01/04/2022] [Indexed: 11/13/2022] Open
Abstract
This review comprises the inorganic compounds particularly metal coordinated complexes, as drugs play a relevant role in medicinal chemistry. It has been observed that copper complexes are potentially attractive as medicinal importance. In this review, the most remarkable achievements of copper complexes undertaken over the past few decades as antimicrobial, antioxidant, enzyme inhibition activity, and anti-cancer agents are discussed. This work was motivated by the observation that no comprehensive surveys of the diversity of biological activities of copper complexes were available in the literature.
Collapse
Affiliation(s)
- Jamshaid ASHRAF
- Department of Chemistry, University of Gujrat, Gujrat,
Pakistan
| | | |
Collapse
|
21
|
Nozadi F, Azadi N, Mansouri B, Tavakoli T, Mehrpour O. Association between trace element concentrations in cancerous and non-cancerous tissues with the risk of gastrointestinal cancers in Eastern Iran. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62530-62540. [PMID: 34212329 DOI: 10.1007/s11356-021-15224-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
This study was conducted to investigate the association between trace elements including cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), nickel (Ni), selenium (Se), zinc (Zn), and arsenic (As) in gastrointestinal cancer tissue and non-cancerous tissue (suspected gastrointestinal cancer) in Eastern Iran. The samples of 63 gastrointestinal cancers (stomach (n = 20), esophageal (n = 19), and colorectal (n = 24) along with 63 controls in South Khorasan Province, Iran, were collected and analyzed using ICP-MS (Agilent 7900). Our results indicated that the concentrations of Co (1.3 ± 0.8, 1.3 ± 0.8 μg kg-1), Cr (8.1 ± 7.3, 11.0 ± 14.8 μg kg-1), Ni (29.0 ± 20.1, 39.5 ± 30.2 μg kg-1), Pb (6.9 ± 4.0, 6.1 ± 4.6 μg kg-1), and Zn (867.6 ± 159.1, 935.6 ± 196.2 μg kg-1) were significantly higher among esophagus and colon cancer cases than controls (p < 0.05). Similarly, stomach cancer cases showed higher Co, Cr, Ni, Se, and Zn and lower Cu concentrations than their controls (p < 0.05). Moreover, the Spearman correlation between metals revealed a mostly low to moderate correlation between metals. Our finding illustrated that the significant risk differences of Cr, Ni, Pb, Se, and Zn metals on esophagus cancer when considered the single predictor unadjusted for other metals and covariates RD (95% CI) - Cr: -0.274 (-0.463, -0.086), Ni: -0.288 (-0.457, -0.118), Pb: -0.171 (-0.463, -0.086), Se: -0.243 (-0.434, -0.051), and Zn: -0.094 (-0.143, -0.045) respectively. This study suggests that the trace element's exposure may be associated with gastrointestinal cancer risk. Additional studies are needed to elucidate the mechanisms underlying trace element carcinogenesis further.
Collapse
Affiliation(s)
- Fatemeh Nozadi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
| | - Namamali Azadi
- Biostatistics Department, Faculty of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Borhan Mansouri
- Substance Abuse Prevention Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Tahmine Tavakoli
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran.
| | - Omid Mehrpour
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
- Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA
| |
Collapse
|
22
|
Copper Dithiocarbamates: Coordination Chemistry and Applications in Materials Science, Biosciences and Beyond. INORGANICS 2021. [DOI: 10.3390/inorganics9090070] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Copper dithiocarbamate complexes have been known for ca. 120 years and find relevance in biology and medicine, especially as anticancer agents and applications in materials science as a single-source precursor (SSPs) to nanoscale copper sulfides. Dithiocarbamates support Cu(I), Cu(II) and Cu(III) and show a rich and diverse coordination chemistry. Homoleptic [Cu(S2CNR2)2] are most common, being known for hundreds of substituents. All contain a Cu(II) centre, being either monomeric (distorted square planar) or dimeric (distorted trigonal bipyramidal) in the solid state, the latter being held together by intermolecular C···S interactions. Their d9 electronic configuration renders them paramagnetic and thus readily detected by electron paramagnetic resonance (EPR) spectroscopy. Reaction with a range of oxidants affords d8 Cu(III) complexes, [Cu(S2CNR2)2][X], in which copper remains in a square-planar geometry, but Cu–S bonds shorten by ca. 0.1 Å. These show a wide range of different structural motifs in the solid-state, varying with changes in anion and dithiocarbamate substituents. Cu(I) complexes, [Cu(S2CNR2)2]−, are (briefly) accessible in an electrochemical cell, and the only stable example is recently reported [Cu(S2CNH2)2][NH4]·H2O. Others readily lose a dithiocarbamate and the d10 centres can either be trapped with other coordinating ligands, especially phosphines, or form clusters with tetrahedral [Cu(μ3-S2CNR2)]4 being most common. Over the past decade, a wide range of Cu(I) dithiocarbamate clusters have been prepared and structurally characterised with nuclearities of 3–28, especially exciting being those with interstitial hydride and/or acetylide co-ligands. A range of mixed-valence Cu(I)–Cu(II) and Cu(II)–Cu(III) complexes are known, many of which show novel physical properties, and one Cu(I)–Cu(II)–Cu(III) species has been reported. Copper dithiocarbamates have been widely used as SSPs to nanoscale copper sulfides, allowing control over the phase, particle size and morphology of nanomaterials, and thus giving access to materials with tuneable physical properties. The identification of copper in a range of neurological diseases and the use of disulfiram as a drug for over 50 years makes understanding of the biological formation and action of [Cu(S2CNEt2)2] especially important. Furthermore, the finding that it and related Cu(II) dithiocarbamates are active anticancer agents has pushed them to the fore in studies of metal-based biomedicines.
Collapse
|
23
|
Pareri AU, Koijam AS, Kumar C. Breaking the Silence of Tumor Response: Future Prospects of Targeted Radionuclide Therapy. Anticancer Agents Med Chem 2021; 22:1845-1858. [PMID: 34477531 DOI: 10.2174/1871520621666210903152354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/12/2021] [Accepted: 07/19/2021] [Indexed: 01/10/2023]
Abstract
Therapy-induced tumor resistance has always been a paramount hurdle in the clinical triumph of cancer therapy. Resistance acquired by tumor through interventions of chemotherapeutic drugs, ionizing radiation, and immunotherapy in the patientsis a severe drawback and major cause of recurrence of tumor and failure of therapeutic responses. To counter acquired resistance in tumor cells, several strategies are practiced such as chemotherapy regimens, immunotherapy, and immunoconjugates, but the outcome is very disappointing for the patients as well as clinicians. Radionuclide therapy using alpha or beta-emitting radionuclide as payload became state-of-the-art for cancer therapy. With the improvement in dosimetric studies, development of high-affinity target molecules, and design of several novel chelating agents which provide thermodynamically stable complexes in vivo, the scope of radionuclide therapy has increased by leaps and bounds. Additionally, radionuclide therapy along with the combination of chemotherapy is gaining importance in pre-clinics, which is quite encouraging. Thus, it opens an avenue for newer cancer therapy modalities where chemotherapy, radiation therapy, and immunotherapy are unable to break the silence of tumor response. This article describes, in brief, the causes of tumor resistance and discusses the potential of radionuclide therapy to enhance tumor response.
Collapse
Affiliation(s)
| | | | - Chandan Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre Mumbai-400085, India
| |
Collapse
|
24
|
Multi-Modal Mass Spectrometric Imaging of Uveal Melanoma. Metabolites 2021; 11:metabo11080560. [PMID: 34436501 PMCID: PMC8400170 DOI: 10.3390/metabo11080560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 08/13/2021] [Accepted: 08/18/2021] [Indexed: 11/17/2022] Open
Abstract
Matrix assisted laser desorption ionisation mass spectrometry imaging (MALDI-MSI), was used to obtain images of lipids and metabolite distribution in formalin fixed and embedded in paraffin (FFPE) whole eye sections containing primary uveal melanomas (UM). Using this technique, it was possible to obtain images of lysophosphatidylcholine (LPC) type lipid distribution that highlighted the tumour regions. Laser ablation inductively coupled plasma mass spectrometry images (LA-ICP-MS) performed on UM sections showed increases in copper within the tumour periphery and intratumoural zinc in tissue from patients with poor prognosis. These preliminary data indicate that multi-modal MSI has the potential to provide insights into the role of trace metals and cancer metastasis.
Collapse
|
25
|
Osawa S, Kitanishi K, Kiuchi M, Shimonaka M, Otsuka H. Accelerated Redox Reaction of Hydrogen Peroxide by Employing Locally Concentrated State of Copper Catalysts on Polymer Chain. Macromol Rapid Commun 2021; 42:e2100274. [PMID: 34292631 DOI: 10.1002/marc.202100274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/13/2021] [Indexed: 12/21/2022]
Abstract
Copper complexes act as catalysts for redox reactions to generate reactive oxygen species that destroy biomolecules and, therefore, are utilized to design drugs including antitumor and antibacterial medicines. Especially, catalytic reaction for hydrogen peroxide decomposition is important because it includes the process for generating highly toxic hydroxyl radical, i.e., Fenton-like reaction. Considering that multicoppers/hydrogen peroxide species are the important intermediates for the redox reaction, herein a polymer having copper complexes in the side chains is designed to facilitate the formation of the intermediates by building locally concentrated state of the copper complexes. The polymer increases their catalytic activities for hydrogen peroxide decomposition and promotes reactive oxygen species' generation, eventually leading to higher antibacterial activity. This reveals the virtue of building a locally concentrated state of catalysts on polymers toward drug design with low amounts of transition metals.
Collapse
Affiliation(s)
- Shigehito Osawa
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Kenichi Kitanishi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Maho Kiuchi
- Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Motoyuki Shimonaka
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Hidenori Otsuka
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,Water Frontier Science and Technology Research Center, Research Institute for Science and Technology, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| |
Collapse
|
26
|
Michniewicz F, Saletta F, Rouaen JRC, Hewavisenti RV, Mercatelli D, Cirillo G, Giorgi FM, Trahair T, Ziegler D, Vittorio O. Copper: An Intracellular Achilles' Heel Allowing the Targeting of Epigenetics, Kinase Pathways, and Cell Metabolism in Cancer Therapeutics. ChemMedChem 2021; 16:2315-2329. [PMID: 33890721 DOI: 10.1002/cmdc.202100172] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 02/06/2023]
Abstract
Copper is an essential transition metal frequently increased in cancer known to strongly influence essential cellular processes. Targeted therapy protocols utilizing both novel and repurposed drug agents initially demonstrate strong efficacy, before failing in advanced cancers as drug resistance develops and relapse occurs. Overcoming this limitation involves the development of strategies and protocols aimed at a wider targeting of the underlying molecular changes. Receptor Tyrosine Kinase signaling pathways, epigenetic mechanisms and cell metabolism are among the most common therapeutic targets, with molecular investigations increasingly demonstrating the strong influence each mechanism exerts on the others. Interestingly, all these mechanisms can be influenced by intracellular copper. We propose that copper chelating agents, already in clinical trial for multiple cancers, may simultaneously target these mechanisms across a wide variety of cancers, serving as an excellent candidate for targeted combination therapy. This review summarizes the known links between these mechanisms, copper, and copper chelation therapy.
Collapse
Affiliation(s)
- Filip Michniewicz
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Federica Saletta
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Jourdin R C Rouaen
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Rehana V Hewavisenti
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Daniele Mercatelli
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Giuseppe Cirillo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036, Rende, Italy
| | - Federico M Giorgi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126, Bologna, Italy
| | - Toby Trahair
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia
| | - David Ziegler
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia
| | - Orazio Vittorio
- Children's Cancer Institute, Lowy Cancer Research Centre, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| |
Collapse
|
27
|
Zinc in Dog Nutrition, Health and Disease: A Review. Animals (Basel) 2021; 11:ani11040978. [PMID: 33915721 PMCID: PMC8066201 DOI: 10.3390/ani11040978] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/11/2021] [Accepted: 03/24/2021] [Indexed: 12/27/2022] Open
Abstract
Simple Summary This work compiles the current state of knowledge regarding zinc requirements of healthy dogs and biomarkers of zinc status. To ensure an adequate zinc status, it is important to know the zinc content of foods and their bioavailability to assess the need and the ideal supplementation strategy regarding levels and sources of additives in complete dog foods. As zinc is required for enzymatic, structural, and regulatory functions in the animal body, its nutritional status has been associated with several pathologies that may be due to, or exacerbated by, a deficit of dietary zinc supply. Abstract Zinc is an essential trace element, required for enzymatic, structural, and regulatory functions. As body reserves are scarce, an adequate zinc status relies on proper dietary supply and efficient homeostasis. Several biomarkers have been proposed that enable the detection of poor zinc status, but more sensitive and specific ones are needed to detect marginal deficiencies. The zinc content of commercial dry dog foods has great variability, with a more frequent non-compliance with the maximum authorized limit than with the nutritional requirement. The bioavailability of dietary zinc also plays a crucial role in ensuring an adequate zinc status. Despite controversial results, organic zinc sources have been considered more bioavailable than inorganic sources, albeit the zinc source effect is more evident after a restriction period of dietary zinc. Many disorders have been associated with inadequate zinc status, not being clear whether the occurrence of the disease is the consequence or the cause. This review presents data on zinc requirements and biomarkers for zinc status, that can be applied for the development of supplementation strategies of zinc in complete pet foods. Moreover, it provides an understanding of the role zinc plays in the health of dogs, and how altered zinc status affects diseases in dogs.
Collapse
|
28
|
Ghosh P, Rozenberg I, Maayan G. Sequence-function relationship within water-soluble Peptoid Chelators for Cu 2. J Inorg Biochem 2021; 217:111388. [PMID: 33618230 DOI: 10.1016/j.jinorgbio.2021.111388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/31/2021] [Accepted: 02/05/2021] [Indexed: 12/26/2022]
Abstract
Chelation of Cu2+ by synthetic molecules is an emerging therapeutic approach for treating several illnesses in human body such as Wilson disease, cancer and more. Among synthetic metal chelators, those based on peptoids - N-substituted glycine oligomers - are advantageous due to their structural similarity to peptides, ease of synthesis on solid support and versatile controlled sequences. Tuning peptoid sequences, via systematically changing at least one side chain, can facilitate and control their function. Along these lines, this work aims to explore the role of the non-coordinating side chain within peptoid chelators in order to understand the factors that control the selectivity of these chelators to Cu2+ in water medium. To this aim, a set of peptoid trimers having a pyridine group at the acetylated N-terminal, a 2,2'-bipyridine group at the second position and a non-coordinating group at the C-terminus, where the latter is systematically varied between aromatic, aliphatic, chiral or non-chiral, were investigated as selective chelators for Cu2+. The effect of the position of the non-coordinating group on the selectivity of the peptoid to Cu2+ was also tested. Based on extensive spectroscopic data, we found that the choice of the non-coordinating group along with its position dramatically influences the selectivity of the peptoids to Cu2+. We showed that peptoids having bulky chiral groups at the C-terminus enable high selectivity to Cu2+. We further demonstrated the ability of one of the selective chelators to remove Cu2+ from the natural copper binding protein metallothionein in HEPES (4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid) buffer medium.
Collapse
Affiliation(s)
- Pritam Ghosh
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Ido Rozenberg
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200008, Israel
| | - Galia Maayan
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 3200008, Israel.
| |
Collapse
|
29
|
Wang K, Michelakos T, Wang B, Shang Z, DeLeo AB, Duan Z, Hornicek FJ, Schwab JH, Wang X. Targeting cancer stem cells by disulfiram and copper sensitizes radioresistant chondrosarcoma to radiation. Cancer Lett 2021; 505:37-48. [PMID: 33582212 PMCID: PMC8969896 DOI: 10.1016/j.canlet.2021.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 12/14/2022]
Abstract
Overcoming the radiosensitivity of chondrosarcoma (CS), the second most common primary bone tumor, is needed. Radioresistance is attributed to cancer stem cells (CSCs) in many malignancies. Disulfiram (DSF), an FDA-approved anti-alcoholism drug, complexed with Cu (DSF/Cu) can radiosensitize epithelial CSCs. This prompted us to investigate the radiosensitizing effect of DSF/Cu on CS CSCs (CCSCs). The radiosensitizing effects of DSF/Cu on CCSCs were investigated in vitro using cell lines SW1353 and CS-1. Stemness was identified independently by flow cytometry for CCSCs (ALDH+CD133+), sphere-forming ability, and Western blot analysis of stemness gene protein expression. The radiosensitizing effect of DSF/Cu was studied in an orthotopic CS xenograft mouse model by analyzing xenograft growth and residual xenografts for stemness. CCSCs were found to be resistant to single-dose (IR) and fractionated irradiation (FIR). IR and FIR increased CS stemness. Combined with DSF/Cu in vitro and in vivo, IR and FIR eliminated CS stemness. RT + DSF/Cu was safer and more effective than either RT ± DSF in inhibiting growth of orthotopic CS xenografts. In conclusion, DSF/Cu radiosensitizes CCSCs. These results can be translated into clinical trials for CS patients requiring RT for improved outcomes.
Collapse
Affiliation(s)
- Kun Wang
- Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA; Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Theodoros Michelakos
- Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, 410011, China
| | - Zikun Shang
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Albert B DeLeo
- Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Zhenfeng Duan
- The Sarcoma and Chordoma Molecular Biology Laboratory, Orthopaedic Surgery, The University of California, Los Angeles, CA, 90095, USA
| | - Francis J Hornicek
- The Sarcoma and Chordoma Molecular Biology Laboratory, Orthopaedic Surgery, The University of California, Los Angeles, CA, 90095, USA
| | - Joseph H Schwab
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
| | - Xinhui Wang
- Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
| |
Collapse
|
30
|
Saha P, Kumari Agarwala P, Dadhich R, Adhyapak P, Kapoor S, Madhavan N. Ligand Induced Cu II Transport Restricts Cancer and Mycobacterial Growth: Towards a Plug-and-Select Ion Channel Scaffold. Chembiochem 2021; 22:1424-1429. [PMID: 33347676 DOI: 10.1002/cbic.202000731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/01/2020] [Indexed: 11/09/2022]
Abstract
Synthetic channels with high ion selectivity are attractive drug targets for diseases involving ion dysregulation. Achieving selective transport of divalent ions is highly challenging due their high hydration energies. A small tripeptide amphiphilic scaffold installed with a pybox ligand selectively transports CuII ions across membranes. The peptide forms stable dimeric pores in the membrane and transports ions by a Cu2+ /H+ antiport mechanism. The ligand-induced excellent CuII selectivity as well as high membrane permeability of the peptide is exploited to promote cancer cell death. The peptide's ability to restrict mycobacterial growth serves as seeds to evolve antibacterial strategies centred on selectively modulating ion homeostasis in pathogens. This simple peptide can potentially function as a universal, yet versatile, scaffold wherein the ion selectivity can be precisely controlled by modifying the ligand at the C terminus.
Collapse
Affiliation(s)
- Parichita Saha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Prema Kumari Agarwala
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Ruchika Dadhich
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Pranav Adhyapak
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Shobhna Kapoor
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Nandita Madhavan
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| |
Collapse
|
31
|
Biochemical pathways of copper complexes: progress over the past 5 years. Drug Discov Today 2021; 26:1086-1096. [PMID: 33486113 DOI: 10.1016/j.drudis.2021.01.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 01/06/2021] [Accepted: 01/12/2021] [Indexed: 12/21/2022]
Abstract
Copper is an essential trace element with vital roles in many metalloenzymes; it is also prominent among nonplatinum anticancer metallodrugs. Copper-based complexes are endogenously biocompatible, tenfold more potent than cisplatin, exhibit fewer adverse effects, and have a wide therapeutic window. In cancer biology, copper acts as an antitumor agent by inhibiting cancer via multiple pathways. Herein, we present an overview of advances in copper complexes as 'lead' antitumor drug candidates, and in understanding their biochemical and pharmacological pathways over the past 5 years. This review will help to develop more efficacious therapeutics to improve clinical outcomes for cancer treatments.
Collapse
|
32
|
Summers KL, Dolgova NV, Gagnon KB, Sopasis GJ, James AK, Lai B, Sylvain NJ, Harris HH, Nichol HK, George GN, Pickering IJ. PBT2 acts through a different mechanism of action than other 8-hydroxyquinolines: an X-ray fluorescence imaging study. Metallomics 2020; 12:1979-1994. [PMID: 33169753 DOI: 10.1039/d0mt00222d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
8-Hydroxyquinolines (8HQs) comprise a family of metal-binding compounds that have been used or tested for use in numerous medicinal applications, including as treatments for bacterial infection, Alzheimer's disease, and cancer. Two key 8HQs, CQ (5-chloro-7-iodo-8-hydroxyquinoline) and PBT2 (2-(dimethylamino)methyl-5,7-dichloro-8-hydroxyquinoline), have drawn considerable interest and have been the focus of many studies investigating their in vivo properties. These drugs have been described as copper and zinc ionophores because they do not cause metal depletion, as would be expected for a chelation mechanism, but rather cellular accumulation of these ions. In studies of their anti-cancer properties, CQ has been proposed to elicit toxic intracellular copper accumulation and to trigger apoptotic cancer cell death through several possible pathways. In this study we used synchrotron X-ray fluorescence imaging, in combination with biochemical assays and light microscopy, to investigate 8HQ-induced alterations to metal ion homeostasis, as well as cytotoxicity and cell death. We used the bromine fluorescence from a bromine labelled CQ congener (5,7-dibromo-8-hydroxyquinoline; B2Q) to trace the intracellular localization of B2Q following treatment and found that B2Q crosses the cell membrane. We also found that 8HQ co-treatment with Cu(ii) results in significantly increased intracellular copper and significant cytotoxicity compared with 8HQ treatments alone. PBT2 was found to be more cytotoxic, but a weaker Cu(ii) ionophore than other 8HQs. Moreover, treatment of cells with copper in the presence of CQ or B2Q resulted in copper accumulation in the nuclei, while PBT2-guided copper was distributed near to the cell membrane. These results suggest that PBT2 may be acting through a different mechanism than that of other 8HQs to cause the observed cytotoxicity.
Collapse
Affiliation(s)
- Kelly L Summers
- Molecular and Environmental Sciences Group, Department of Geological Sciences, College of Arts and Science, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Ghosh P, Maayan G. A Water‐Soluble Peptoid that Can Extract Cu
2+
from Metallothionein via Selective Recognition. Chemistry 2020; 27:1383-1389. [DOI: 10.1002/chem.202003711] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 08/27/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Pritam Ghosh
- Schulich Faculty of Chemistry Technion-Israel Institute of Technology Technion City Haifa 3200008 Israel
| | - Galia Maayan
- Schulich Faculty of Chemistry Technion-Israel Institute of Technology Technion City Haifa 3200008 Israel
| |
Collapse
|
34
|
Molinaro C, Martoriati A, Pelinski L, Cailliau K. Copper Complexes as Anticancer Agents Targeting Topoisomerases I and II. Cancers (Basel) 2020; 12:E2863. [PMID: 33027952 PMCID: PMC7601307 DOI: 10.3390/cancers12102863] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/24/2020] [Accepted: 09/29/2020] [Indexed: 12/12/2022] Open
Abstract
Organometallics, such as copper compounds, are cancer chemotherapeutics used alone or in combination with other drugs. One small group of copper complexes exerts an effective inhibitory action on topoisomerases, which participate in the regulation of DNA topology. Copper complexes inhibitors of topoisomerases 1 and 2 work by different molecular mechanisms, analyzed herein. They allow genesis of DNA breaks after the formation of a ternary complex, or act in a catalytic mode, often display DNA intercalative properties and ROS production, and sometimes display dual effects. These amplified actions have repercussions on the cell cycle checkpoints and death effectors. Copper complexes of topoisomerase inhibitors are analyzed in a broader synthetic view and in the context of cancer cell mutations. Finally, new emerging treatment aspects are depicted to encourage the expansion of this family of highly active anticancer drugs and to expend their use in clinical trials and future cancer therapy.
Collapse
Affiliation(s)
- Caroline Molinaro
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
| | - Alain Martoriati
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
| | - Lydie Pelinski
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-Unité de Catalyse et Chimie du Solide, F-59000 Lille, France;
| | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
| |
Collapse
|
35
|
Wu TM, Liu ST, Chen SY, Chen GS, Wu CC, Huang SM. Mechanisms and Applications of the Anti-cancer Effect of Pharmacological Ascorbic Acid in Cervical Cancer Cells. Front Oncol 2020; 10:1483. [PMID: 33014789 PMCID: PMC7507989 DOI: 10.3389/fonc.2020.01483] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 07/10/2020] [Indexed: 12/12/2022] Open
Abstract
In recent years, L-ascorbic acid (L-AA), or vitamin C, has been attracting attention as a potential anticancer drug that mediates hydrogen peroxide-induced oxidation and ten-eleven translocation 2-catalyzed DNA demethylation. However, the precise mechanism by which L-AA acts remains unclear. We examined the cytotoxic effects of L-AA or sodium ascorbate in human cervical carcinoma cells by assessing cell viability, expression of cell cycle-related mRNAs and proteins, and mitochondrial functions, and by performing flow cytometric analyses of cell cycle profiles, apoptosis, cell proliferation, and production of reactive oxygen species (ROS). We later tested the effects of ascorbates in combination with two first-line chemotherapeutic drugs, cisplatin, and doxorubicin. At pharmacological concentrations (1–10 mM), L-AA increased ROS levels; decreased levels of several cell cycle-related proteins, including p53, p21, cyclin D1, and phosphorylated histone 3 at serine residue 10; induced DNA damage, as indicated by changes in γH2A.x; decreased levels of the anti-oxidative transcription factor Nrf2; and increased levels of catalase, superoxide dismutase 1, and endoplasmic reticulum stress-related indicators, such as the p-eIF2α/eIF2α ratio and CHOP levels. L-AA also promoted cell proliferation and induced apoptosis and mitochondrial dysfunction. Finally, L-AA increased the susceptibility of HeLa cells to cisplatin and doxorubicin. These findings provide insight into how the adjustment of the cellular ROS status through L-ascorbate (L-AA or sodium ascorbate) administration could potentially synergistically enhance the efficacy of cancer therapies.
Collapse
Affiliation(s)
- Tsai-Ming Wu
- Department of Biochemistry, National Defense Medical Center, Taipei City, Taiwan
| | - Shu-Ting Liu
- Department of Biochemistry, National Defense Medical Center, Taipei City, Taiwan
| | - Ssu-Yu Chen
- Department of Biochemistry, National Defense Medical Center, Taipei City, Taiwan
| | - Gunng-Shinng Chen
- Department of Dentistry of Tri-service General Hospital, School of Dentistry, National Defense Medical Center, Taipei City, Taiwan
| | - Chia-Chun Wu
- Department of Orthopaedic Surgery, Tri-service General Hospital, National Defense Medical Center, Taipei City, Taiwan
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei City, Taiwan
| |
Collapse
|
36
|
Grzeszczak K, Kwiatkowski S, Kosik-Bogacka D. The Role of Fe, Zn, and Cu in Pregnancy. Biomolecules 2020; 10:E1176. [PMID: 32806787 PMCID: PMC7463674 DOI: 10.3390/biom10081176] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 12/15/2022] Open
Abstract
Iron (Fe), copper (Cu), and zinc (Zn) are microelements essential for the proper functioning of living organisms. These elements participatein many processes, including cellular metabolism and antioxidant and anti-inflammatory defenses, and also influence enzyme activity, regulate gene expression, and take part in protein synthesis. Fe, Cu, and Zn have a significant impact on the health of pregnant women and in the development of the fetus, as well as on the health of the newborn. A proper concentration of these elements in the body of women during pregnancy reduces the risk of complications such as anemia, induced hypertension, low birth weight, preeclampsia, and postnatal complications. The interactions between Fe, Cu, and Zn influence their availability due to their similar physicochemical properties. This most often occurs during intestinal absorption, where metal ions compete for binding sites with transport compounds. Additionally, the relationships between these ions have a great influence on the course of reactions in the tissues, as well as on their excretion, which can be stimulated or delayed. This review aims to summarize reports on the influence of Fe, Cu, and Zn on the course of single and multiple pregnancies, and to discuss the interdependencies and mechanisms occurring between Fe, Cu, and Zn.
Collapse
Affiliation(s)
- Konrad Grzeszczak
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Danuta Kosik-Bogacka
- Independent Laboratory of Pharmaceutical Botany, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| |
Collapse
|
37
|
Cary R, Unser S, Monroe I, Holbrook J, Sagle L. Utilizing molecular resonance-localized surface plasmon resonance coupling for copper ion detection in plasma. Analyst 2020; 145:4950-4956. [PMID: 32500885 DOI: 10.1039/d0an00563k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The rapid, point-of-care detection of copper in plasma can greatly aid in a large number of diseases where copper has been implicated to be an important factor, such as cancer, Alzheimer's and Diabetes mellitus. Localized surface plasmon resonance (LSPR) technologies show promise in the inexpensive detection of copper, whereas previous platforms are plagued with selectivity and sensitivity issues. Herein, we have created a sensitive and selective on-chip copper sensor which can produce a colorimetric reading in 60 minutes. The selectivity of the assay is based on 'Click' chemistry and is shown to have little interference with other metal ions present in plasma. The sensitivity of the assay is generated from the coupling of the molecular resonance of a dye and the LSPR of the gold nanoparticles. The assay is capable of measuring copper concentrations in human plasma as low as 4 μM and the linear range of sensitivity, 4 to 20 μM, is in the physiologically relevant range. This robust, colorimetric assay should prove useful in a point-of-care setting.
Collapse
Affiliation(s)
- ReJeana Cary
- Department of Chemistry, College of Arts and Sciences, University of Cincinnati, 301 West Clifton Court, Cincinnati, OH 45221-0172, USA.
| | | | | | | | | |
Collapse
|
38
|
Arjmand F, Sharma S, Parveen S, Toupet L, Yu Z, Cowan JA. Copper(ii) l/d-valine-(1,10-phen) complexes target human telomeric G-quadruplex motifs and promote site-specific DNA cleavage and cellular cytotoxicity. Dalton Trans 2020; 49:9888-9899. [PMID: 32638779 PMCID: PMC7433390 DOI: 10.1039/d0dt01527j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Chiral l-/d-valine-(1,10-phen)-Cu(ii) complexes that target G-quadruplex DNA were synthesized and thoroughly characterized by UV-vis, IR, EPR, ESI-MS, elemental analysis and single crystal X-ray spectroscopy. Complexes 1a and 1b crystallized in the monoclinic P21/c and C2 space groups, respectively. On the basis of Wolfe-Shimer analyses, the binding affinities of 1a and 1b with G-quadruplex telomeric DNA were determined, and 1a exhibited significantly higher binding as compared to 1b. Site selective cleavage of G4-DNA was demonstrated by employing the time-dependent PAGE assay, with 1a exhibiting a significantly higher cleavage rate from A1 to G22 (4.32 (±0.13) μM h-1) than 1b (4.29 (±0.11) μM h-1). The DNA cleavage profile demonstrated that both complexes perform non-random double-strand cleavage by following first-order kinetics (kobs = 0.9432 min-1 for 1a and kobs = 0.6574 min-1 for 1b). Molecular docking simulations were performed with both parallel and anti-parallel topologies of the quadruplex to provide a clear insight on G-quadruplex-complex interactions. Complexes 1a and 1b were found to interact strongly at the minor groove cavity of the quadruplex with preferential selectivity for the parallel vs. anti-parallel quadruplex. The cytotoxic activities of complexes 1a and 1b were evaluated on a few notably important human cancer cell lines, viz, breast (MCF-7), pancreatic strains (BxPC3, AsPC1) and liver (Huh7) by an MTT assay. Both 1a and 1b exhibited pronounced cytotoxic activity with remarkably low IC50 values (1-3 μM) for all tested cancer strains.
Collapse
Affiliation(s)
- Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Surbhi Sharma
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Sabiha Parveen
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Loic Toupet
- Institut de Physique de sRennes, UMR 625, Université de Rennes 1, Campus de Beaulieu Bat. 11 A, 263 av. Général Leclerc, 35042 Rennes Cedex, France
| | - Zhen Yu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
| | - James Allan Cowan
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH 43210, USA
| |
Collapse
|
39
|
Jain S, Bhar K, Bandyopadhayaya S, Singh VK, Mandal CC, Tapryal S, Sharma AK. Development, evaluation and effect of anionic co-ligand on the biological activity of benzothiazole derived copper(II) complexes. J Inorg Biochem 2020; 210:111174. [PMID: 32652261 DOI: 10.1016/j.jinorgbio.2020.111174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/28/2020] [Accepted: 06/28/2020] [Indexed: 01/08/2023]
Abstract
Research on development of novel metal based anti-cancer agents continues with its popularity among bioinorganic community. Benzothiazole, an important heterocyclic pharmacophore, was chosen as a valuable and useful scaffold for the synthesis of novel copper(II) complexes. Three new copper(II) complexes obtained from the synthesis of newly synthesized benzothiazole based N-(benzo[d]thiazol-2-ylmethyl)-N-methyl-2-(pyridin-2-yl)ethan-1-amine (btzpy) ligand with CuCl2 [Cu(btzpy)Cl2] (1), Cu(NCS)2 [Cu(btzpy)(NCS)2] (2), and Cu(NO3)2 [Cu(btzpy)(NO3)(H2O)]NO3 (3) were isolated and characterized by physical and spectroscopic measurements, including single-crystal X-ray structures. The interaction of complexes 1 and 3 with calf thymus (CT)-DNA was investigated using ethidium bromide fluorescence quenching assay and weak intercalation with KSV values of 9.8 × 102 M-1 and 8.2 × 102 M-1, respectively was observed. All three complexes have shown DNA cleavage of supercoiled plasmid DNA forming single nicked and double nicked forms in the presence of external reducing agents like 3-mercaptopropionic acid (3-MPA) and ascorbic acid. The water-soluble complexes 1 and 3 also show prominent hydrolytic DNA cleavage. From the DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging assay, it was observed that complex 2 also exhibits good antioxidant properties. The cytotoxicity of complexes 1-3 was tested against the lung cancer cell line (A549) and complex 2 with -NCS moiety shows maximum activity in the micromolar range. A rationale for the observed activity is proposed in light of the other properties of these molecules.
Collapse
Affiliation(s)
- Surbhi Jain
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India
| | - Kishalay Bhar
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India
| | - Shreetama Bandyopadhayaya
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India
| | - Vikas K Singh
- Department of Biotechnology, School of Life Sciences, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India
| | - Chandi C Mandal
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India
| | - Suman Tapryal
- Department of Biotechnology, School of Life Sciences, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India
| | - Anuj K Sharma
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Bandarsindri, District Ajmer, Rajasthan 305817, India.
| |
Collapse
|
40
|
Copper-dependent ATP7B up-regulation drives the resistance of TMEM16A-overexpressing head-and-neck cancer models to platinum toxicity. Biochem J 2020; 476:3705-3719. [PMID: 31790150 DOI: 10.1042/bcj20190591] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 11/13/2019] [Accepted: 12/02/2019] [Indexed: 12/17/2022]
Abstract
Platinum-containing drugs such as cisplatin and carboplatin are routinely used for the treatment of many solid tumors including squamous cell carcinoma of the head and neck (SCCHN). However, SCCHN resistance to platinum compounds is well documented. The resistance to platinum has been linked to the activity of divalent transporter ATP7B, which pumps platinum from the cytoplasm into lysosomes, decreasing its concentration in the cytoplasm. Several cancer models show increased expression of ATP7B; however, the reason for such an increase is not known. Here we show a strong positive correlation between mRNA levels of TMEM16A and ATP7B in human SCCHN tumors. TMEM16A overexpression and depletion in SCCHN cell lines caused parallel changes in the ATP7B mRNA levels. The ATP7B increase in TMEM16A-overexpressing cells was reversed by suppression of NADPH oxidase 2 (NOX2), by the antioxidant N-Acetyl-Cysteine (NAC) and by copper chelation using cuprizone and bathocuproine sulphonate (BCS). Pretreatment with either chelator significantly increased cisplatin's sensitivity, particularly in the context of TMEM16A overexpression. We propose that increased oxidative stress in TMEM16A-overexpressing cells liberates the chelated copper in the cytoplasm, leading to the transcriptional activation of ATP7B expression. This, in turn, decreases the efficacy of platinum compounds by promoting their vesicular sequestration. We think that such a new explanation of the mechanism of SCCHN tumors' platinum resistance identifies novel approach to treating these tumors.
Collapse
|
41
|
Krasnovskaya O, Naumov A, Guk D, Gorelkin P, Erofeev A, Beloglazkina E, Majouga A. Copper Coordination Compounds as Biologically Active Agents. Int J Mol Sci 2020; 21:E3965. [PMID: 32486510 PMCID: PMC7312030 DOI: 10.3390/ijms21113965] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/29/2020] [Accepted: 05/30/2020] [Indexed: 12/24/2022] Open
Abstract
Copper-containing coordination compounds attract wide attention due to the redox activity and biogenicity of copper ions, providing multiple pathways of biological activity. The pharmacological properties of metal complexes can be fine-tuned by varying the nature of the ligand and donor atoms. Copper-containing coordination compounds are effective antitumor agents, constituting a less expensive and safer alternative to classical platinum-containing chemotherapy, and are also effective as antimicrobial, antituberculosis, antimalarial, antifugal, and anti-inflammatory drugs. 64Сu-labeled coordination compounds are promising PET imaging agents for diagnosing malignant pathologies, including head and neck cancer, as well as the hallmark of Alzheimer's disease amyloid-β (Aβ). In this review article, we summarize different strategies for possible use of coordination compounds in the treatment and diagnosis of various diseases, and also various studies of the mechanisms of antitumor and antimicrobial action.
Collapse
Affiliation(s)
- Olga Krasnovskaya
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
| | - Alexey Naumov
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
| | - Dmitry Guk
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
| | - Peter Gorelkin
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
| | - Alexander Erofeev
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
| | - Elena Beloglazkina
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
| | - Alexander Majouga
- Chemistry Department, Lomonosov Moscow State University, Leninskie gory 1,3, 119991 Moscow, Russia; (A.N.); (D.G.); (A.E.); (E.B.); (A.M.)
- Department of Materials Science of Semiconductors and Dielectrics, National University of Science and Technology (MISIS), Leninskiy prospect 4, 101000 Moscow, Russia;
- Mendeleev University of Chemical Technology of Russia, Miusskaya Ploshchad’ 9, 125047 Moscow, Russia
| |
Collapse
|
42
|
Copper-imidazo[1,2-a]pyridines induce intrinsic apoptosis and modulate the expression of mutated p53, haem-oxygenase-1 and apoptotic inhibitory proteins in HT-29 colorectal cancer cells. Apoptosis 2020; 24:623-643. [PMID: 31073781 DOI: 10.1007/s10495-019-01547-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Metastatic colorectal cancer responds poorly to treatment and is a leading cause of cancer related deaths. Worldwide, chemotherapy of metastatic colorectal cancer remains plagued by poor efficacy, development of resistance and serious adverse effects. Copper-imidazo[1,2-a]pyridines were previously shown by our group to be selectively active against several cancer cell lines, with three complexes, JD46(27), JD47(29), and JD88(21), showing IC50 values between 0.8 and 1.8 μM against HT-29 cells. Here, we report that treatment with the copper complexes resulted in fragmented nuclei suggestive of apoptotic cell death, which was confirmed by increased annexin V binding and caspase-3/7 activity. The copper complexes caused a loss of mitochondrial membrane potential and increased caspase-9 activity. The absence of caspase-8 activity indicated activation of the intrinsic pathway. Proteomic analysis revealed that copper-imidazo[1,2-a]pyridines decreased the expression of phosphorylated forms of p53 [phospho-p53(S15), phospho-p53(S46) and phospho-p53(S392)]. The expression of inhibitor of apoptosis proteins, XIAP, cIAP1, livin, and the antiapoptotic proteins, Bcl-2 and Bcl-x, was decreased. HO/HMOX/HSP32, expression was notably increased, which suggested the accumulation of reactive oxygen species. Increased expression of TRAIL-R2/DR5 death receptor indicated the possible dual activation of both the extrinsic and intrinsic apoptotic pathways; however, caspase-8 activation could not be demonstrated. In conclusion, the copper-imidazo[1,2-a]pyridines were effective inducers of apoptotic cell death at low micromolar concentrations and changed the expression levels of proteins important for cell survival and cell death. These copper complexes may be useful tools to better understand the complexity of signalling networks in cancer cell death in response to cell stress.
Collapse
|
43
|
Komarnicka UK, Kozieł S, Zabierowski P, Kruszyński R, Lesiów MK, Tisato F, Porchia M, Kyzioł A. Copper(I) complexes with phosphines P(p-OCH3-Ph)2CH2OH and P(p-OCH3-Ph)2CH2SarGly. Synthesis, multimodal DNA interactions, and prooxidative and in vitro antiproliferative activity. J Inorg Biochem 2020; 203:110926. [DOI: 10.1016/j.jinorgbio.2019.110926] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/21/2022]
|
44
|
Li H, Liu B, Ao H, Fu J, Wang Y, Feng Y, Guo Y, Wang X. Soybean lecithin stabilizes disulfiram nanosuspensions with a high drug-loading content: remarkably improved antitumor efficacy. J Nanobiotechnology 2020; 18:4. [PMID: 31907045 PMCID: PMC6943900 DOI: 10.1186/s12951-019-0565-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 12/21/2019] [Indexed: 01/01/2023] Open
Abstract
Disulfiram (DSF) has been considered as "Repurposing drug" in cancer therapy in recent years based on its good antitumor efficacy. DSF is traditionally used as an oral drug in the treatment of alcoholism. To overcome its rapid degradation and instability, DSF nanosuspensions (DSF/SPC-NSps) were prepared using soybean lecithin (SPC) as a stabilizer of high drug-loaded content (44.36 ± 1.09%). Comprehensive characterization of the nanosuspensions was performed, and cell cytotoxicity, in vivo antitumor efficacy and biodistribution were studied. DSF/SPC-NSps, having a spherical appearance with particle size of 155 nm, could remain very stable in different physiological media, and sustained release. The in vitro MTT assay indicated that the cytotoxicity of DSF/SPC-NSps was enhanced remarkably compared to free DSF against the 4T1 cell line. The IC50 value decreased by 11-fold (1.23 vs. 13.93 μg/mL, p < 0.01). DSF/SPC-NSps groups administered via intravenous injections exhibited better antitumor efficacy compared to the commercial paclitaxel injection (PTX injection) and had a dose-dependent effect in vivo. Notably, DSF/SPC-NSps exhibited similar antitumor activity following oral administration as PTX administration via injection into a vein. These results suggest that the prepared nanosuspensions can be used as a stable delivery vehicle for disulfiram, which has potential application in breast cancer chemotherapy.
Collapse
Affiliation(s)
- Haowen Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, People's Republic of China
| | - Biao Liu
- Harbin University of Commerce China, Research Center ON Life Sciences and Environmental Sciences, Harbin, 150076, People's Republic of China
| | - Hui Ao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, People's Republic of China
| | - Jingxin Fu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, People's Republic of China
| | - Yian Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, People's Republic of China
| | - Yue Feng
- Guangdong Jiabo Pharmaceutical CO., LTD, Jianshe 3rd Road, Hi-tech Industrial Development Zone, Qingyuan, 511517, Guangdong, People's Republic of China
| | - Yifei Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, People's Republic of China.
| | - Xiangtao Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 151, Malianwa North Road, Haidian District, Beijing, People's Republic of China.
| |
Collapse
|
45
|
Jain S, Bhar K, Kumar S, Bandyopadhyaya S, Tapryal S, Mandal CC, Sharma AK. Homo- and heteroleptic trimethoxy terpyridine–Cu(ii) complexes: synthesis, characterization, DNA/BSA binding, DNA cleavage and cytotoxicity studies. Dalton Trans 2020; 49:4100-4113. [DOI: 10.1039/d0dt00209g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In the current study, four novel mononuclear Cu(ii) complexes with terpyridine (L) and different co-ligands (phen, bipy, and imd) were synthesized and characterized in detail, whereLis 4′-(3,4,5-trimethoxyphenyl)-2,2′:6′,2′′-terpyridine.
Collapse
Affiliation(s)
- Surbhi Jain
- Department of Chemistry
- School of Chemical Sciences and Pharmacy
- India
| | - Kishalay Bhar
- Department of Chemistry
- School of Chemical Sciences and Pharmacy
- India
| | - Sandeep Kumar
- Department of Biotechnology
- School of Life Sciences
- India
| | | | - Suman Tapryal
- Department of Biotechnology
- School of Life Sciences
- India
| | - Chandi C. Mandal
- Department of Biochemistry
- School of Life Sciences
- Central University of Rajasthan
- India
| | - Anuj K. Sharma
- Department of Chemistry
- School of Chemical Sciences and Pharmacy
- India
| |
Collapse
|
46
|
Chaudhuri A, Mengji R, Venkatesh Y, Jana A, Pradeep Singh ND. An improved tumor-specific therapeutic strategy by the spatio-temporally controlled in situ formation of a Cu(ii) complex, leading to prompt cell apoptosis via photoactivation of a prodrug. Chem Commun (Camb) 2020; 56:4559-4562. [DOI: 10.1039/d0cc00667j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biotin tagged one and two photon activable Cu chelating prodrug as a target-specific and spatio-temporal generations of Cu complex for improved cancer treatment.
Collapse
Affiliation(s)
- Amrita Chaudhuri
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| | - Rakesh Mengji
- Department of Applied Biology
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Yarra Venkatesh
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| | - Avijit Jana
- Department of Applied Biology
- CSIR-Indian Institute of Chemical Technology (CSIR-IICT)
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - N. D. Pradeep Singh
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| |
Collapse
|
47
|
Zhou Z, Ni K, Deng H, Chen X. Dancing with reactive oxygen species generation and elimination in nanotheranostics for disease treatment. Adv Drug Deliv Rev 2020; 158:73-90. [PMID: 32526453 DOI: 10.1016/j.addr.2020.06.006] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 02/08/2023]
Abstract
Reactive oxygen species (ROS) play important roles in cell signaling and tissue homeostasis, in which the level of ROS is critical through the equilibrium between ROS generating and eliminating events. A disruption of the balance leads to disease development either by a surplus or a dearth of ROS, which requires ROS-modulating strategies to overturn the defect for disease treatment. Over the past decade, there have been tremendous advances in nanomedicine centering ROS generation and/or elimination as major mechanisms to treat a variety of diseases. In this review, we will discuss the research achievements on two opposite approaches of ROS-generating and ROS-eliminating strategies for treating cancer and other related diseases. Importantly, we will highlight the conceptual and strategic advances of ROS-mediated immunomodulation, including macrophage polarization, immunogenic cell death and T cell activation, which are currently rising as one of the mainstreams of cancer therapy. At the end, the future challenges and opportunities of mediating ROS-based mechanisms are envisioned. In light of the pleiotropic roles of ROS in different diseases, we hope this review is timely to deliver a clear logic of designing principles on ROS generation and elimination for different disease treatments.
Collapse
|
48
|
Álvarez-Miguel L, Álvarez-Miguel I, Martín-Álvarez JM, Álvarez CM, Rogez G, García-Rodríguez R, Miguel D. Copper complexes for the promotion of iminopyridine ligands derived from β-alanine and self-aldol additions: relaxivity and cytotoxic properties. Dalton Trans 2019; 48:17544-17555. [PMID: 31748774 DOI: 10.1039/c9dt03822a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In the study presented herein, we explore the ability of copper complexes with coordinated pyridine-2-carboxaldehyde (pyca) or 2-acetylpyridine (acepy) ligands to promote the addition of amines (Schiff condensation) and other nucleophiles such as alcohols (hemiacetal formation). Distinct reactivity patterns are observed: unlike pyca complexes, acepy copper complexes can promote self-aldol addition. The introduction of a flexible chain via Schiff condensation with β-alanine allows the possibility of chelate ring ring-opening processes mediated by pH. Further derivatization of the complex [CuCl(py-2-C(H)[double bond, length as m-dash]NCH2CH2COO)] is possible by replacing its chloride ligand with different pseudohalogens (N3-, NCO- and NCS-). In addition to the change in their magnetism, which correlates with their solid-state structures, more unexpected effects in their cytotoxicity and relaxitivities are observed, which determines their possibility to be used as MRI contrast agents. The replacement of a chloride by another pseudohalogen, although a simple strategy, can be used to critically change the cytotoxicity of the Schiff base copper(ii) complex and its selectivity towards specific cell lines.
Collapse
Affiliation(s)
- Lucía Álvarez-Miguel
- GIR MIOMET-IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo de Belen 7, E-47011 Valladolid, Spain.
| | | | | | | | | | | | | |
Collapse
|
49
|
Najlah M, Said Suliman A, Tolaymat I, Kurusamy S, Kannappan V, Elhissi AMA, Wang W. Development of Injectable PEGylated Liposome Encapsulating Disulfiram for Colorectal Cancer Treatment. Pharmaceutics 2019; 11:pharmaceutics11110610. [PMID: 31739556 PMCID: PMC6920821 DOI: 10.3390/pharmaceutics11110610] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 11/07/2019] [Accepted: 11/11/2019] [Indexed: 12/18/2022] Open
Abstract
Disulfiram (DS), an anti-alcoholism medicine, shows strong anti-cancer activity in the laboratory, but the application in clinics for anti-cancer therapy has been limited by its prompt metabolism. Conventional liposomes have shown limited ability to protect DS. Therefore, the aim of this study is to develop PEGylated liposomes of DS for enhanced bio-stability and prolonged circulation. PEGylated liposomes were prepared using ethanol-based proliposome methods. Various ratios of phospholipids, namely: hydrogenated soya phosphatidylcholine (HSPC) or dipalmitoyl phosphatidylcholine (DPPC) and N-(Carbonyl-methoxypolyethylenglycol-2000)-1,2-distearoyl-sn-glycero-3-phosphoethanolamine (DSPE-PEG2000) with cholesterol were used. DS was dissolved in the alcoholic solution in different lipid mol% ratios. The size of the resulting multilamellar liposomes was reduced by high-pressure homogenization. Liposomal formulations were characterized by size analysis, zeta potential, drug loading efficiency and stability in horse serum. Small unilamellar vesicles (SUVs; nanoliposomes) were generated with a size of approximately 80 to 120 nm with a polydispersity index (PDI) in the range of 0.1 to 0.3. Zeta potential values of all vesicles were negative, and the negative surface charge intensity tended to increase by PEGylation. PEGylated liposomes had a smaller size (80–90 nm) and a significantly lower PDI. All liposomes showed similar loading efficiencies regardless of lipid type (HSPC or DPPC) or PEGylations. PEGylated liposomes provided the highest drug biostability amongst all formulations in horse serum. PEGylated DPPC liposomes had t1/2 =77.3 ± 9.6 min compared to 9.7 ± 2.3 min for free DS. In vitro cytotoxicity on wild type and resistant colorectal cancer cell lines was evaluated by MTT assay. All liposomal formulations of DS were cytotoxic to both the wild type and resistant colorectal cancer cell lines and were able to reverse chemoresistance at low nanomolar concentrations. In conclusion, PEGylated liposomes have a greater potential to be used as an anticancer carrier for disulfiram.
Collapse
Affiliation(s)
- Mohammad Najlah
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK; (A.S.S.); (I.T.)
- Correspondence: ; Tel.: +44(0)124568-4682
| | - Ammar Said Suliman
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK; (A.S.S.); (I.T.)
| | - Ibrahim Tolaymat
- Pharmaceutical Research Group, School of Allied Health, Faculty of Health, Education, Medicine and Social Care, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, UK; (A.S.S.); (I.T.)
| | - Sathishkumar Kurusamy
- Faculty of Science & Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK; (S.K.); (V.K.); (W.W.)
| | - Vinodh Kannappan
- Faculty of Science & Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK; (S.K.); (V.K.); (W.W.)
| | - Abdelbary M. A. Elhissi
- College of Pharmacy and Office of the Vice President (Research and Graduate Studies), Qatar University, Doha, Qatar;
| | - Weiguang Wang
- Faculty of Science & Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK; (S.K.); (V.K.); (W.W.)
| |
Collapse
|
50
|
Chen SY, Liu ST, Lin WR, Lin CK, Huang SM. The Mechanisms Underlying the Cytotoxic Effects of Copper Via Differentiated Embryonic Chondrocyte Gene 1. Int J Mol Sci 2019; 20:ijms20205225. [PMID: 31652494 PMCID: PMC6834119 DOI: 10.3390/ijms20205225] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/17/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022] Open
Abstract
Copper is an essential trace element within cells, but it also exerts cytotoxic effects through induction of reactive oxygen species (ROS) production. To determine the mechanisms underlying copper-induced ROS production, we examined the effects of copper sulfate in HeLa cells. Exposure to copper sulfate led to dose-dependent decreases in HeLa cell viability, along with increases in the subG1 and G2/M populations and corresponding decreases in the G1 population. Copper sulfate also increased the levels of apoptosis, senescence, mitochondrial dysfunction, autophagy, ROS, and the expression of several stress proteins, including ATF3, c-Fos, DEC1 (differentiated embryonic chondrocyte gene 1), p21, p53, and HIF-1α (hypoxia-inducible factor 1 alpha). The suppression of copper-induced ROS generation by the ROS scavenger N-acetyl cysteine verified copper’s functional role, while the suppression of copper’s effects by the copper chelator disulfiram, confirmed its specificity. Selective induction of HIF-1α, p53, and phosphorylated ERK proteins by copper was blocked by the knockdown of the transcription factor DEC1, suggesting copper’s effects are mediated by DEC1. In addition to HeLa cells, copper also exerted cytotoxic effects in human endometrial (HEC-1-A) and lung (A549) adenocarcinoma cells, but not in normal human kidney (HEK293) or bronchial (Beas-2B) epithelial cells. These findings shed new light on the functional roles of copper within cells.
Collapse
Affiliation(s)
- Ssu-Yu Chen
- Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan.
| | - Shu-Ting Liu
- Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan.
| | - Wun-Rong Lin
- Department of Urology, Mackay Memorial Hospital, Taipei 104, Taiwan.
- Department of Medicine, Mackay Medical College, New Taipei 252, Taiwan.
- Department of Cosmetic Applications and Management, Mackay Junior College of Medicine, Nursing, and Management, Taipei 112, Taiwan.
| | - Chi-Kang Lin
- Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan.
| | - Shih-Ming Huang
- Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan.
| |
Collapse
|