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Naletova I, Greco V, Sciuto S, Attanasio F, Rizzarelli E. Ionophore Ability of Carnosine and Its Trehalose Conjugate Assists Copper Signal in Triggering Brain-Derived Neurotrophic Factor and Vascular Endothelial Growth Factor Activation In Vitro. Int J Mol Sci 2021; 22:13504. [PMID: 34948299 PMCID: PMC8706131 DOI: 10.3390/ijms222413504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/10/2021] [Accepted: 12/13/2021] [Indexed: 12/11/2022] Open
Abstract
l-carnosine (β-alanyl-l-histidine) (Car hereafter) is a natural dipeptide widely distributed in mammalian tissues and reaching high concentrations (0.7-2.0 mM) in the brain. The molecular features of the dipeptide underlie the antioxidant, anti-aggregating and metal chelating ability showed in a large number of physiological effects, while the biological mechanisms involved in the protective role found against several diseases cannot be explained on the basis of the above-mentioned properties alone, requiring further research efforts. It has been reported that l-carnosine increases the secretion and expression of various neurotrophic factors and affects copper homeostasis in nervous cells inducing Cu cellular uptake in keeping with the key metal-sensing system. Having in mind this l-carnosine ability, here we report the copper-binding and ionophore ability of l-carnosine to activate tyrosine kinase cascade pathways in PC12 cells and stimulate the expression of BDNF. Furthermore, the study was extended to verify the ability of the dipeptide to favor copper signaling inducing the expression of VEGF. Being aware that the potential protective action of l-carnosine is drastically hampered by its hydrolysis, we also report on the behavior of a conjugate of l-carnosine with trehalose that blocks the carnosinase degradative activity. Overall, our findings describe a copper tuning effect on the ability of l-carnosine and, particularly its conjugate, to activate tyrosine kinase cascade pathways.
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Affiliation(s)
- Irina Naletova
- Institute of Crystallography, National Council of Research—CNR, Via Paolo Gaifami 18, 95126 Catania, Italy;
- National Inter-University Consortium Metals Chemistry in Biological Systems (CIRCMSB), Via Celso Ulpiani 27, 70126 Bari, Italy
| | - Valentina Greco
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy; (V.G.); (S.S.)
| | - Sebastiano Sciuto
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy; (V.G.); (S.S.)
| | - Francesco Attanasio
- Institute of Crystallography, National Council of Research—CNR, Via Paolo Gaifami 18, 95126 Catania, Italy;
| | - Enrico Rizzarelli
- Institute of Crystallography, National Council of Research—CNR, Via Paolo Gaifami 18, 95126 Catania, Italy;
- National Inter-University Consortium Metals Chemistry in Biological Systems (CIRCMSB), Via Celso Ulpiani 27, 70126 Bari, Italy
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy; (V.G.); (S.S.)
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Copper in tumors and the use of copper-based compounds in cancer treatment. J Inorg Biochem 2021; 226:111634. [PMID: 34740035 DOI: 10.1016/j.jinorgbio.2021.111634] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/05/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
Copper homeostasis is strictly regulated by protein transporters and chaperones, to allow its correct distribution and avoid uncontrolled redox reactions. Several studies address copper as involved in cancer development and spreading (epithelial to mesenchymal transition, angiogenesis). However, being endogenous and displaying a tremendous potential to generate free radicals, copper is a perfect candidate, once opportunely complexed, to be used as a drug in cancer therapy with low adverse effects. Copper ions can be modulated by the organic counterpart, after complexed to their metalcore, either in redox potential or geometry and consequently reactivity. During the last four decades, many copper complexes were studied regarding their reactivity toward cancer cells, and many of them could be a drug choice for phase II and III in cancer therapy. Also, there is promising evidence of using 64Cu in nanoparticles as radiopharmaceuticals for both positron emission tomography (PET) imaging and treatment of hypoxic tumors. However, few compounds have gone beyond testing in animal models, and none of them got the status of a drug for cancer chemotherapy. The main challenge is their solubility in physiological buffers and their different and non-predictable mechanism of action. Moreover, it is difficult to rationalize a structure-based activity for drug design and delivery. In this review, we describe the role of copper in cancer, the effects of copper-complexes on tumor cell death mechanisms, and point to the new copper complexes applicable as drugs, suggesting that they may represent at least one component of a multi-action combination in cancer therapy.
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Assessing the potential role of copper and cobalt in stimulating angiogenesis for tissue regeneration. PLoS One 2021; 16:e0259125. [PMID: 34705886 PMCID: PMC8550415 DOI: 10.1371/journal.pone.0259125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/12/2021] [Indexed: 11/19/2022] Open
Abstract
The use of copper (Cu2+) and cobalt (Co2+) has been described to stimulate blood vessel formation, a key process for the success of tissue regeneration. However, understanding how different concentrations of these ions affect cellular response is important to design scaffolds for their delivery to better fine tune the angiogenic response. On the one hand, gene expression analysis and the assessment of tubular formation structures with human umbilical vein endothelial cells (HUVEC) revealed that high concentrations (10μM) of Cu2+ in early times and lower concentrations (0.1 and 1μM) at later times (day 7) enhanced angiogenic response. On the other hand, higher concentrations (25μM) of Co2+ during all time course increased the angiogenic gene expression and 0.5, 5 and 25μM enhanced the ability to form tubular structures. To further explore synergistic effects combining both ions, the non-toxic concentrations were used simultaneously, although results showed an increased cell toxicity and no improvement of angiogenic response. These results provide useful information for the design of Cu2+ or Co2+ delivery scaffolds in order to release the appropriate concentration during time course for blood vessel stimulation.
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Kannappan V, Ali M, Small B, Rajendran G, Elzhenni S, Taj H, Wang W, Dou QP. Recent Advances in Repurposing Disulfiram and Disulfiram Derivatives as Copper-Dependent Anticancer Agents. Front Mol Biosci 2021; 8:741316. [PMID: 34604310 PMCID: PMC8484884 DOI: 10.3389/fmolb.2021.741316] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/20/2021] [Indexed: 12/30/2022] Open
Abstract
Copper (Cu) plays a pivotal role in cancer progression by acting as a co-factor that regulates the activity of many enzymes and structural proteins in cancer cells. Therefore, Cu-based complexes have been investigated as novel anticancer metallodrugs and are considered as a complementary strategy for currently used platinum agents with undesirable general toxicity. Due to the high failure rate and increased cost of new drugs, there is a global drive towards the repositioning of known drugs for cancer treatment in recent years. Disulfiram (DSF) is a first-line antialcoholism drug used in clinics for more than 65 yr. In combination with Cu, it has shown great potential as an anticancer drug by targeting a wide range of cancers. The reaction between DSF and Cu ions forms a copper diethyldithiocarbamate complex (Cu(DDC)2 also known as CuET) which is the active, potent anticancer ingredient through inhibition of NF-κB and ubiquitin-proteasome system as well as alteration of the intracellular reactive oxygen species (ROS). Importantly, DSF/Cu inhibits several molecular targets related to drug resistance, stemness, angiogenesis and metastasis and is thus considered as a novel strategy for overcoming tumour recurrence and relapse in patients. Despite its excellent anticancer efficacy, DSF has proven unsuccessful in several cancer clinical trials. This is likely due to the poor stability, rapid metabolism and/or short plasma half-life of the currently used oral version of DSF and the inability to form Cu(DDC)2 at relevant concentrations in tumour tissues. Here, we summarize the scientific rationale, molecular targets, and mechanisms of action of DSF/Cu in cancer cells and the outcomes of oral DSF ± Cu in cancer clinical trials. We will focus on the novel insights on harnessing the immune system and hypoxic microenvironment using DSF/Cu complex and discuss the emerging delivery strategies that can overcome the shortcomings of DSF-based anticancer therapies and provide opportunities for translation of DSF/Cu or its Cu(DDC)2 complex into cancer therapeutics.
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Affiliation(s)
- Vinodh Kannappan
- Research Institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, United Kingdom.,Disulfican Ltd, University of Wolverhampton Science Park, Wolverhampton, United Kingdom
| | - Misha Ali
- Departments of Oncology, Pharmacology and Pathology, School of Medicine, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States.,Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Benjamin Small
- Research Institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, United Kingdom
| | - Gowtham Rajendran
- Research Institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, United Kingdom
| | - Salena Elzhenni
- Departments of Oncology, Pharmacology and Pathology, School of Medicine, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
| | - Hamza Taj
- Departments of Oncology, Pharmacology and Pathology, School of Medicine, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
| | - Weiguang Wang
- Research Institute in Healthcare Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, United Kingdom.,Disulfican Ltd, University of Wolverhampton Science Park, Wolverhampton, United Kingdom
| | - Q Ping Dou
- Departments of Oncology, Pharmacology and Pathology, School of Medicine, Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI, United States
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Guo J, Cheng J, Zheng N, Zhang X, Dai X, Zhang L, Hu C, Wu X, Jiang Q, Wu D, Okada H, Pandolfi PP, Wei W. Copper Promotes Tumorigenesis by Activating the PDK1-AKT Oncogenic Pathway in a Copper Transporter 1 Dependent Manner. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2004303. [PMID: 34278744 PMCID: PMC8456201 DOI: 10.1002/advs.202004303] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 05/25/2021] [Indexed: 05/13/2023]
Abstract
Copper plays pivotal roles in metabolic homoeostasis, but its potential role in human tumorigenesis is not well defined. Here, it is revealed that copper activates the phosphoinositide 3-kinase (PI3K)-protein kinase B (PKB, also termed AKT) oncogenic signaling pathway to facilitate tumorigenesis. Mechanistically, copper binds 3-phosphoinositide dependent protein kinase 1 (PDK1), in turn promotes PDK1 binding and subsequently activates its downstream substrate AKT to facilitate tumorigenesis. Blocking the copper transporter 1 (CTR1)-copper axis by either depleting CTR1 or through the use of copper chelators diminishes the AKT signaling and reduces tumorigenesis. In support of an oncogenic role for CTR1, the authors find that CTR1 is abnormally elevated in breast cancer, and is subjected by NEDD4 like E3 ubiquitin protein ligase (Nedd4l)-mediated negative regulation through ubiquitination and subsequent degradation. Accordingly, Nedd4l displays a tumor suppressive function by suppressing the CTR1-AKT signaling. Thus, the findings identify a novel regulatory crosstalk between the Nedd4l-CTR1-copper axis and the PDK1-AKT oncogenic signaling, and highlight the therapeutic relevance of targeting the CTR1-copper node for the treatment of hyperactive AKT-driven cancers.
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Affiliation(s)
- Jianping Guo
- Department of PathologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA02215USA
- Institute of Precision Medicinethe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510275China
| | - Ji Cheng
- Department of PathologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA02215USA
- Department of Gastrointestinal SurgeryUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430022China
| | - Nana Zheng
- National Clinical Research Center for Hematologic DiseasesJiangsu Institute of HematologyThe First Affiliated Hospital of Soochow UniversitySuzhouJiangsu215000China
| | - Xiaomei Zhang
- Institute of Precision Medicinethe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510275China
| | - Xiaoming Dai
- Department of PathologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA02215USA
| | - Linli Zhang
- Department of OncologyTongji Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei430030China
| | - Changjiang Hu
- Department of PathologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA02215USA
| | - Xueji Wu
- Institute of Precision Medicinethe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510275China
| | - Qiwei Jiang
- Institute of Precision Medicinethe First Affiliated HospitalSun Yat‐sen UniversityGuangzhouGuangdong510275China
| | - Depei Wu
- National Clinical Research Center for Hematologic DiseasesJiangsu Institute of HematologyThe First Affiliated Hospital of Soochow UniversitySuzhouJiangsu215000China
| | - Hitoshi Okada
- Department of BiochemistryKindai University Faculty of Medicine377‐2 Ohno‐HigashiOsaka‐SayamaOsaka589‐8511Japan
| | - Pier Paolo Pandolfi
- Division of GeneticsDepartment of MedicineBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA02215USA
| | - Wenyi Wei
- Department of PathologyBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMA02215USA
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Pang L, Tian P, Cui X, Wu X, Zhao X, Wang H, Wang D, Pan H. In Situ Photo-Cross-Linking Hydrogel Accelerates Diabetic Wound Healing through Restored Hypoxia-Inducible Factor 1-Alpha Pathway and Regulated Inflammation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29363-29379. [PMID: 34128630 DOI: 10.1021/acsami.1c07103] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The hypoxia-inducible factor 1-alpha (HIF-1a) pathway plays a key role in regulating angiogenesis during wound healing. However, the diabetic condition hampers the stabilization of HIF-1a and thus inhibits the subsequent angiogenesis, and meanwhile, the function and phenotype transition of macrophage are impaired in the diabetic condition, which leads to prolonged and chronic inflammation. Both angiogenesis inhibition and inflammatory dysfunction make diabetic wound healing a major clinical challenge. Here, borosilicate (BS), a new group of bioceramics with a coupled network of interconnected [BO3] and [SiO4] which can incorporate therapeutic ions such as Cu2+, is synthesized and combined with silk fibroin (SF), a biocompatible natural amino acid polymer whose composition and structure are similar to a natural extracellular matrix (ECM), to obtain a compound system which can transform into a SF-MA-BS hydrogel under UV radiation via methacryloyloxy (MA) groups modified on both BS and SF. When in use, the compound system can thoroughly spread to the whole wound surface and be in situ photo-cross-linked to form an integral SF-MA-BS hydrogel that firmly adheres to the wound, protects the wound from external contamination, and further spontaneously promotes wound regeneration by releasing therapeutic ions. The wound repair of Streptozotocin-induced diabetic rats shows that diabetic wound healing is obviously accelerated by SF-MA-BS, interestingly the HIF-1a pathway is restored via interaction between HIF-1a and Cu2+, and angiogenesis is therefore enhanced. Meanwhile, inflammation is well regulated by SF-MA-BS, and long-term detrimental inflammation is avoided. These findings indicate that the SF-MA-BS hydrogel regenerates diabetic wounds, and further clinical trials are anticipated.
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Affiliation(s)
- Libin Pang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055 ,Guangdong, China
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Pengfei Tian
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055 ,Guangdong, China
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China
| | - Xu Cui
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055 ,Guangdong, China
| | - Xiuping Wu
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan 030001, Shanxi, China
| | - Xiaoli Zhao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055 ,Guangdong, China
| | - Hui Wang
- Laboratory for Advance Lubricating Materials, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Deping Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055 ,Guangdong, China
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Copper Preserves Vasculature Structure and Function by Protecting Endothelial Cells from Apoptosis in Ischemic Myocardium. J Cardiovasc Transl Res 2021; 14:1146-1155. [PMID: 33999373 DOI: 10.1007/s12265-021-10128-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/15/2021] [Indexed: 02/08/2023]
Abstract
The present study was undertaken to investigate whether Cu protects vasculatures from ischemic injury in the heart. C57/B6 mice were introduced to myocardial ischemia (MI) by permanent ligation of the left anterior descending (LAD) coronary artery. Two hours post-LAD ligation, mice were intravenously injected with a Cu-albumin (Cu-alb) solution, or saline as control. At 1, 4, or 7 days post-MI, hearts were collected for further analysis. A dramatic decrease in CD31-positive endothelial cells concomitantly with abundant apoptosis, along with obstruction of blood flow, was observed in ischemic myocardium 1 day post-MI. The early Cu-alb treatment protected CD31-positive cells from apoptosis, along with a preservation of micro-vessels and a decrease in infarct size. This early vasculature preservation ensured myocardial blood perfusion and protected cardiac contractile function until 28 days post-MI. This strategy of Cu-alb treatment immediately following MI would help develop a therapeutic approach for acute heart attack patients in a clinical setting.
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58
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Wang P, Yuan Y, Xu K, Zhong H, Yang Y, Jin S, Yang K, Qi X. Biological applications of copper-containing materials. Bioact Mater 2021; 6:916-927. [PMID: 33210018 PMCID: PMC7647998 DOI: 10.1016/j.bioactmat.2020.09.017] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/10/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022] Open
Abstract
Copper is an indispensable trace metal element in the human body, which is mainly absorbed in the stomach and small intestine and excreted into the bile. Copper is an important component and catalytic agent of many enzymes and proteins in the body, so it can influence human health through multiple mechanisms. Based on the biological functions and benefits of copper, an increasing number of researchers in the field of biomaterials have focused on developing novel copper-containing biomaterials, which exhibit unique properties in protecting the cardiovascular system, promoting bone fracture healing, and exerting antibacterial effects. Copper can also be used in promoting incisional wounds healing, killing cancer cells, Positron Emission Tomography (PET) imaging, radioimmunological tracing and radiotherapy of cancer. In the present review, the biological functions of copper in the human body are presented, along with an overview of recent progress in our understanding of the biological applications and development of copper-containing materials. Furthermore, this review also provides the prospective on the challenges of those novel biomaterials for future clinical applications.
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Affiliation(s)
- Peng Wang
- Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, China
| | - Yonghui Yuan
- Clinical Research Center for Malignant Tumor of Liaoning Province, Cancer Hospital of China Medical University Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, China
| | - Ke Xu
- Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, China
| | - Hongshan Zhong
- Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, China
| | - Yinghui Yang
- Suzhou Silvan Medical Co., Ltd, Suzhou 215006, China
| | - Shiyu Jin
- Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Science, Shenyang 110016, China
| | - Xun Qi
- Key Laboratory of Diagnostic Imaging and Interventional Radiology of Liaoning Province, Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, China
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The Vhl E3 ubiquitin ligase complex regulates melanisation via sima, cnc and the copper import protein Ctr1A. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:119022. [PMID: 33775798 DOI: 10.1016/j.bbamcr.2021.119022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/04/2021] [Accepted: 03/22/2021] [Indexed: 01/22/2023]
Abstract
VHL encodes a tumour suppressor, which possesses E3 ubiquitin ligase activity in complex with EloC and Cul2. In tumour cells or in response to hypoxia, VHL activity is lost, causing accumulation of the transcription factor HIF-1alpha. In this study, we demonstrated that in Drosophila, Rpn9, a regulatory component of the 26 s proteasome, participates in the Vhl-induced proteasomal degradation of sima, the Drosophila orthologue of HIF-1alpha. Knockdown of Vhl induces increased melanisation in the adult fly thorax and concurrent decrease in pigmentation in the abdomen. Both these defects are rescued by knockdown of sima and partially by knockdown of cnc, which encodes the fly orthologue of the transcription factor Nrf2, the master regulator of oxidative stress response. We further show that sima overexpression and Rpn9 knockdown both result in post-translational down-regulation of the copper uptake transporter Ctr1A in the fly eye and that Ctr1A expression exacerbates Vhl knockdown defects in the thorax and rescues these defects in the abdomen. We conclude that Vhl negatively regulates both sima and cnc and that in the absence of Vhl, these transcription factors interact to regulate Ctr1A, copper uptake and consequently melanin formation. We propose a model whereby the co-regulatory relationship between sima and cnc flips between thorax and abdomen: in the thorax, sima is favoured leading to upregulation of Ctr1A; in the abdomen, cnc dominates, resulting in the post-translational downregulation of Ctr1A.
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McCarty MF. Nutraceutical, Dietary, and Lifestyle Options for Prevention and Treatment of Ventricular Hypertrophy and Heart Failure. Int J Mol Sci 2021; 22:ijms22073321. [PMID: 33805039 PMCID: PMC8037104 DOI: 10.3390/ijms22073321] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/22/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Although well documented drug therapies are available for the management of ventricular hypertrophy (VH) and heart failure (HF), most patients nonetheless experience a downhill course, and further therapeutic measures are needed. Nutraceutical, dietary, and lifestyle measures may have particular merit in this regard, as they are currently available, relatively safe and inexpensive, and can lend themselves to primary prevention as well. A consideration of the pathogenic mechanisms underlying the VH/HF syndrome suggests that measures which control oxidative and endoplasmic reticulum (ER) stress, that support effective nitric oxide and hydrogen sulfide bioactivity, that prevent a reduction in cardiomyocyte pH, and that boost the production of protective hormones, such as fibroblast growth factor 21 (FGF21), while suppressing fibroblast growth factor 23 (FGF23) and marinobufagenin, may have utility for preventing and controlling this syndrome. Agents considered in this essay include phycocyanobilin, N-acetylcysteine, lipoic acid, ferulic acid, zinc, selenium, ubiquinol, astaxanthin, melatonin, tauroursodeoxycholic acid, berberine, citrulline, high-dose folate, cocoa flavanols, hawthorn extract, dietary nitrate, high-dose biotin, soy isoflavones, taurine, carnitine, magnesium orotate, EPA-rich fish oil, glycine, and copper. The potential advantages of whole-food plant-based diets, moderation in salt intake, avoidance of phosphate additives, and regular exercise training and sauna sessions are also discussed. There should be considerable scope for the development of functional foods and supplements which make it more convenient and affordable for patients to consume complementary combinations of the agents discussed here. Research Strategy: Key word searching of PubMed was employed to locate the research papers whose findings are cited in this essay.
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Affiliation(s)
- Mark F McCarty
- Catalytic Longevity Foundation, 811 B Nahant Ct., San Diego, CA 92109, USA
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61
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Li C, Wang T, Xiao Y, Li K, Meng X, James Kang Y. COMMD1 upregulation is involved in copper efflux from ischemic hearts. Exp Biol Med (Maywood) 2021; 246:607-616. [PMID: 33653183 PMCID: PMC7934151 DOI: 10.1177/1535370220969844] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/09/2020] [Indexed: 02/05/2023] Open
Abstract
Copper depletion is associated with myocardial ischemic infarction, in which copper metabolism MURR domain 1 (COMMD1) is increased. The present study was undertaken to test the hypothesis that the elevated COMMD1 is responsible for copper loss from the ischemic myocardium, thus worsening myocardial ischemic injury. Mice (C57BL/6J) were subjected to left anterior descending coronary artery permanent ligation to induce myocardial ischemic infarction. In the ischemic myocardium, copper reduction was associated with a significant increase in the protein level of COMMD1. A tamoxifen-inducible, cardiomyocyte -specific Commd1 knockout mouse (C57BL/6J) model (COMMD1CMC▲/▲) was generated using the Cre-LoxP recombination system. COMMD1CMC▲/▲ and wild-type littermates were subjected to the same permanent ligation of left anterior descending coronary artery. At the 7th day after ischemic insult, COMMD1 deficiency suppressed copper loss in the heart, along with preservation of vascular endothelial growth factor and vascular endothelial growth factor receptor 1 expression and the integrity of the vascular system in the ischemic myocardium. Corresponding to this change, infarct size of ischemic heart was reduced and myocardial contractile function was well preserved in COMMD1CMC▲/▲ mice. These results thus demonstrate that upregulation of COMMD1 is at least partially responsible for copper efflux from the ischemic heart. Cardiomyocyte-specific deletion of COMMD1 helps preserve the availability of copper for angiogenesis, thus suppressing myocardial ischemic dysfunction.
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Affiliation(s)
- Chen Li
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Tao Wang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ying Xiao
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kui Li
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xia Meng
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y James Kang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Memphis Institute of Regenerative Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Salinas-Vera YM, Gallardo-Rincón D, Ruíz-García E, Silva-Cázares MB, de la Peña-Cruz CS, López-Camarillo C. The role of hypoxia in endometrial cancer. Curr Pharm Biotechnol 2021; 23:221-234. [PMID: 33655827 DOI: 10.2174/1389201022666210224130022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 12/24/2022]
Abstract
Endometrial cancer represents the most frequent neoplasia from the corpus uteri, and comprises the 14th leading cause of death in women worldwide. Risk factors that contribute to the disease include early menarche, late menopause, nulliparity, and menopausal hormone use, as well as hypertension and obesity comorbidities. The clinical effectiveness of chemotherapy is variable, suggesting that novel molecular targeted therapies against specific cellular processes associated with the maintenance of cancer cell survival and therapy resistance urged to ameliorate the rates of success in endometrial cancer treatment. In the course of tumor growth, cancer cells must adapt to decreased oxygen availability in the microenvironment by upregulation of hypoxia-inducible factors, which orchestrate the activation of a transcriptional program leading to cell survival. During this adaptative process, the hypoxic cancer cells may acquire invasive and metastatic properties as well as increased cell proliferation and resistance to chemotherapy, enhanced angiogenesis, vasculogenic mimicry, and maintenance of cancer cell stemness, which contribute to more aggressive cancer phenotypes. Several studies have shown that hypoxia-inducible factor 1 alpha (HIF-1α) protein is aberrantly overexpressed in many solid tumors from breast, prostate, ovarian, bladder, colon, brain, and pancreas. Thus, it has been considered an important therapeutic target. Here, we reviewed the current knowledge of the relevant roles of cellular hypoxia mechanisms and HIF-1α functions in diverse processes associated with endometrial cancer progression. In addition, we also summarize the role of microRNAs in the posttranscriptional regulation of protein-encoding genes involved in the hypoxia response in endometrial cancer. Finally, we pointed out the need for urgent targeted therapies to impair the cellular processes activated by hypoxia in the tumor microenvironment.
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Affiliation(s)
| | - Dolores Gallardo-Rincón
- Laboratorio de Medicina Traslacional y Departamento de Tumores Gastrointestinales, Instituto Nacional de Cancerología, Ciudad de México. Mexico
| | - Erika Ruíz-García
- Laboratorio de Medicina Traslacional y Departamento de Tumores Gastrointestinales, Instituto Nacional de Cancerología, Ciudad de México. Mexico
| | - Macrina B Silva-Cázares
- Doctorado Institucional en Ingeniería y Ciencia de Materiales, Universidad Autónoma de San Luis Potosí. Mexico
| | | | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, Ciudad de México. Mexico
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Davis CI, Gu X, Kiefer RM, Ralle M, Gade TP, Brady DC. Altered copper homeostasis underlies sensitivity of hepatocellular carcinoma to copper chelation. Metallomics 2020; 12:1995-2008. [PMID: 33146201 PMCID: PMC8315290 DOI: 10.1039/d0mt00156b] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hepatocellular carcinoma (HCC), the most common primary liver cancer, of which ∼800 000 new cases will be diagnosed worldwide this year, portends a five-year survival rate of merely 17% in patients with unresectable disease. This dismal prognosis is due, at least in part, from the late stage of diagnosis and the limited efficacy of systemic therapies. As a result, there is an urgent need to identify risk factors that contribute to HCC initiation and provide targetable vulnerabilities to improve patient survival. While myriad risk factors are known, elevated copper (Cu) levels in HCC patients and the incidence of hepatobiliary malignancies in Wilson disease patients, which exhibit hereditary liver Cu overload, suggests the possibility that metal accumulation promotes malignant transformation. Here we found that expression of the Cu transporter genes ATP7A, ATP7B, SLC31A1, and SLC31A2 was significantly altered in liver cancer samples and were associated with elevated Cu levels in liver cancer tissue and cells. Further analysis of genomic copy number data revealed that alterations in Cu transporter gene loci correlate with poorer survival in HCC patients. Genetic loss of the Cu importer SLC31A1 (CTR1) or pharmacologic suppression of Cu decreased the viability, clonogenic survival, and anchorage-independent growth of human HCC cell lines. Mechanistically, CTR1 knockdown or Cu chelation decreased glycolytic gene expression and downstream metabolite utilization and as a result forestalled tumor cell survival after exposure to hypoxia, which mimics oxygen deprivation elicited by transarterial embolization, a standard-of-care therapy used for patients with unresectable HCC. Taken together, these findings established an association between altered Cu homeostasis and HCC and suggest that limiting Cu bioavailability may provide a new treatment strategy for HCC by restricting the metabolic reprogramming necessary for cancer cell survival.
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Affiliation(s)
- Caroline I. Davis
- Biochemistry and Molecular Biophysics Graduate Group, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Xingxing Gu
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ryan M. Kiefer
- Medical Degree Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Penn Image-Guided Interventions Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Martina Ralle
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, 97239, USA
| | - Terence P. Gade
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Penn Image-Guided Interventions Laboratory, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Donita C. Brady
- Department of Cancer Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
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64
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Zhang X, Liu Y, Clark KL, Padget AM, Alexander PG, Dai J, Zhu W, Lin H. Mesenchymal stem cell-derived extracellular matrix (mECM): a bioactive and versatile scaffold for musculoskeletal tissue engineering. ACTA ACUST UNITED AC 2020; 16:012002. [PMID: 32906098 DOI: 10.1088/1748-605x/abb6b3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mesenchymal stem cell-derived extracellular matrix (mECM) has received increased attention in the fields of tissue engineering and scaffold-assisted regeneration. mECM exhibits many unique characteristics, such as robust bioactivity, biocompatibility, ease of use, and the potential for autologous tissue engineering. As the use of mECM has increased in musculoskeletal tissue engineering, it should be noted that mECM generated from current methods has inherited insufficiencies, such as low mechanical properties and lack of internal architecture. In this review, we first summarize the development and use of mECM as a scaffold for musculoskeletal tissue regeneration and highlight our current progress on moving this technology toward clinical application. Then we review recent methods to improve the properties of mECM that will overcome current weaknesses. Lastly, we propose future studies that will pave the road for mECM application in regenerating tissues in humans.
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Affiliation(s)
- Xiurui Zhang
- Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States of America. Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, People's Republic of China. These authors contributed equally to this work
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Seo JJ, Mandakhbayar N, Kang MS, Yoon JY, Lee NH, Ahn J, Lee HH, Lee JH, Kim HW. Antibacterial, proangiogenic, and osteopromotive nanoglass paste coordinates regenerative process following bacterial infection in hard tissue. Biomaterials 2020; 268:120593. [PMID: 33348262 DOI: 10.1016/j.biomaterials.2020.120593] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/23/2020] [Accepted: 12/06/2020] [Indexed: 12/12/2022]
Abstract
Bacterial infection raises serious concerns in tissue repair settings involved with implantable biomaterials, devastating the regenerative process and even life-threatening. When hard tissues are infected with bacteria (called 'osteomyelitis'), often the cases in open fracture or chronic inflammation, a complete restoration of regenerative capacity is significantly challenging even with highly-dosed antibiotics or surgical intervention. The implantable biomaterials are thus needed to be armored to fight bacteria then to relay regenerative events. To this end, here we propose a nanoglass paste made of ~200-nm-sized silicate-glass (with Ca, Cu) particles that are hardened in contact with aqueous medium and multiple-therapeutic, i.e., anti-bacterial, pro-angiogenic and osteopromotive. The nanoglass paste self-hardened via networks of precipitated nano-islands from leached ions to exhibit ultrahigh surface area (~300 m2/g), amenable to fill tunable defects with active biomolecular interactions. Also, the nanoglass paste could release multiple ions (silicate, calcium, and copper) at therapeutically relevant doses and sustainably (for days to weeks), implying possible roles in surrounding cells/tissues as a therapeutic-ions reservoir. The osteopromotive effects of nanoglass paste were evidenced by the stimulated osteogenic differentiation of MSCs. Also, the nanoglass paste promoted angiogenesis of endothelial cells in vitro and vasculature formation in vivo. Furthermore, the significant bactericidal effect of nanoglass paste, as assessed with E. coli and S. aureus, highlighted the role of copper played in elevating ROS level and destroying homeostasis, which salvaged tissue cells from co-cultivated bacteria contamination. When administered topically to rat tibia osteomyelitis defects, the nanoglass paste enhanced in vivo bone healing and fracture resistance. The developed nanoglass paste, given its self-setting property and the coordinated therapeutic actions, is considered to be a promising drug-free inorganic biomaterial platform for the regenerative therapy of bacteria-infected hard tissues.
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Affiliation(s)
- Jung Ju Seo
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Nandin Mandakhbayar
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Min Sil Kang
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Ji-Young Yoon
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Na-Hyun Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Junyong Ahn
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea; Cell & Matter Institute, Dankook University, Cheonan, 31116, South Korea.
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea; Cell & Matter Institute, Dankook University, Cheonan, 31116, South Korea.
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Copper-containing bioactive glasses and glass-ceramics: From tissue regeneration to cancer therapeutic strategies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 121:111741. [PMID: 33579436 DOI: 10.1016/j.msec.2020.111741] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/09/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023]
Abstract
Copper is one of the most used therapeutic metallic elements in biomedicine, ranging from antibacterial approaches to cancer theranostics. This element could be easily incorporated into different types of biomaterials; specifically, copper-doped bioactive glasses (BGs) provide great opportunities for biomedical engineers and clinicians as regards their excellent biocompatibility and regenerative potential. Although copper-incorporated BGs are mostly used in bone tissue engineering, accelerated soft tissue healing is achievable, too, with interesting potentials in wound treatment and skin repair. Copper can modulate the physico-chemical properties of BGs (e.g., reactivity with bio-fluids) and improve their therapeutic potential. Improving cell proliferation, promoting angiogenesis, reducing or even prohibiting bacterial growth are counted as prominent biological features of copper-doped BGs. Recent studies have also suggested the suitability of copper-doped BGs in cancer photothermal therapy (PTT). However, more research is needed to determine the extent to which copper-doped BGs are actually applicable for tissue engineering and regenerative medicine strategies in the clinic. Moreover, copper-doped BGs in combination with polymers may be considered in the future to produce relatively soft, pliable composites and printable inks for use in biofabrication.
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67
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Anti-Influenza Effect of Nanosilver in a Mouse Model. Vaccines (Basel) 2020; 8:vaccines8040679. [PMID: 33202939 PMCID: PMC7712555 DOI: 10.3390/vaccines8040679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/01/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
The present study assesses copper metabolism of the host organism as a target of antiviral strategy, basing on the "virocell" concept. Silver nanoparticles (AgNPs) were used as a specific active agent because they reduce the level of holo-ceruloplasmin, the main extracellular cuproenzyme. The mouse model of influenza virus A infection was used with two doses: 1 LD50 and 10 LD50. Three treatment regimens were used: Scheme 1-mice were pretreated 4 days before infection and then every day during infection development; Scheme 2-mice were pretreated four days before infection and on the day of virus infection; Scheme 3-virus infection and AgNP treatment started simultaneously, and mice were injected with AgNPs until the end of the experiment. The mice treated by Scheme 1 demonstrated significantly lower mortality, the protection index reached 60-70% at the end of the experiment, and mean lifespan was prolonged. In addition, the treatment of the animals with AgNPs resulted in normalization of the weight dynamics. Despite the amelioration of the infection, AgNP treatment did not influence influenza virus replication. The possibility of using nanosilver as an effective indirectly-acting antiviral drug is discussed.
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68
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Reactive magnetron co-sputtering of Ti-xCuO coatings: Multifunctional interfaces for blood-contacting devices. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111198. [DOI: 10.1016/j.msec.2020.111198] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/20/2020] [Accepted: 06/16/2020] [Indexed: 02/08/2023]
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Mehrabi T, Mesgar AS, Mohammadi Z. Bioactive Glasses: A Promising Therapeutic Ion Release Strategy for Enhancing Wound Healing. ACS Biomater Sci Eng 2020; 6:5399-5430. [PMID: 33320556 DOI: 10.1021/acsbiomaterials.0c00528] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The morbidity, mortality, and burden of burn victims and patients with severe diabetic wounds are still high, which leads to an extensively growing demand for novel treatments with high clinical efficacy. Biomaterial-based wound treatment approaches have progressed over time from simple cotton wool dressings to advanced skin substitutes containing cells and growth factors; however, no wound care approach is yet completely satisfying. Bioactive glasses are materials with potential in many areas that exhibit unique features in biomedical applications. Today, bioactive glasses are not only amorphous solid structures that can be used as a substitute in hard tissue but also are promising materials for soft tissue regeneration and wound healing applications. Biologically active elements such as Ag, B, Ca, Ce, Co, Cu, Ga, Mg, Se, Sr, and Zn can be incorporated in glass networks; hence, the superiority of these multifunctional materials over current materials results from their ability to release multiple therapeutic ions in the wound environment, which target different stages of the wound healing process. Bioactive glasses and their dissolution products have high potency for inducing angiogenesis and exerting several biological impacts on cell functions, which are involved in wound healing and some other features that are valuable in wound healing applications, namely hemostatic and antibacterial properties. In this review, we focus on skin structure, the dynamic process of wound healing in injured skin, and existing wound care approaches. The basic concepts of bioactive glasses are reviewed to better understand the relationship between glass structure and its properties. We illustrate the active role of bioactive glasses in wound repair and regeneration. Finally, research studies that have used bioactive glasses in wound healing applications are summarized and the future trends in this field are elaborated.
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Affiliation(s)
- Tina Mehrabi
- Biomaterials Laboratory, Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Abdorreza S Mesgar
- Biomaterials Laboratory, Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439957131, Iran
| | - Zahra Mohammadi
- Biomaterials Laboratory, Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 1439957131, Iran
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Flint LE, Hamm G, Ready JD, Ling S, Duckett CJ, Cross NA, Cole LM, Smith DP, Goodwin RJA, Clench MR. Characterization of an Aggregated Three-Dimensional Cell Culture Model by Multimodal Mass Spectrometry Imaging. Anal Chem 2020; 92:12538-12547. [PMID: 32786495 PMCID: PMC7497704 DOI: 10.1021/acs.analchem.0c02389] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
![]()
Mass
spectrometry imaging (MSI) is an established analytical tool
capable of defining and understanding complex tissues by determining
the spatial distribution of biological molecules. Three-dimensional
(3D) cell culture models mimic the pathophysiological environment
of in vivo tumors and are rapidly emerging as a valuable
research tool. Here, multimodal MSI techniques were employed to characterize
a novel aggregated 3D lung adenocarcinoma model, developed by the
group to mimic the in vivo tissue. Regions of tumor
heterogeneity and the hypoxic microenvironment were observed based
on the spatial distribution of a variety of endogenous molecules.
Desorption electrospray ionization (DESI)-MSI defined regions of a
hypoxic core and a proliferative outer layer from metabolite distribution.
Targeted metabolites (e.g., lactate, glutamine, and citrate) were
mapped to pathways of glycolysis and the TCA cycle demonstrating tumor
metabolic behavior. The first application of imaging mass cytometry
(IMC) with 3D cell culture enabled single-cell phenotyping at 1 μm
spatial resolution. Protein markers of proliferation (Ki-67) and hypoxia (glucose transporter 1) defined metabolic
signaling in the aggregoid model, which complemented the metabolite
data. Laser ablation inductively coupled plasma (LA-ICP)-MSI analysis
localized endogenous elements including magnesium and copper, further
differentiating the hypoxia gradient and validating the protein expression.
Obtaining a large amount of molecular information on a complementary
nature enabled an in-depth understanding of the biological processes
within the novel tumor model. Combining powerful imaging techniques
to characterize the aggregated 3D culture highlighted a future methodology
with potential applications in cancer research and drug development.
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Affiliation(s)
- Lucy E Flint
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - Gregory Hamm
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Darwin Building, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire CB4 0WG, United Kingdom
| | - Joseph D Ready
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - Stephanie Ling
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Darwin Building, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire CB4 0WG, United Kingdom
| | - Catherine J Duckett
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - Neil A Cross
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - Laura M Cole
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - David P Smith
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - Richard J A Goodwin
- Imaging and Data Analytics, Clinical Pharmacology and Safety Sciences, BioPharmaceuticals R&D, AstraZeneca, Darwin Building, Cambridge Science Park, Milton Road, Cambridge, Cambridgeshire CB4 0WG, United Kingdom.,Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Malcolm R Clench
- Centre for Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
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Lin W, Xu L, Li G. Molecular Insights Into Lysyl Oxidases in Cartilage Regeneration and Rejuvenation. Front Bioeng Biotechnol 2020; 8:359. [PMID: 32426343 PMCID: PMC7204390 DOI: 10.3389/fbioe.2020.00359] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/31/2020] [Indexed: 12/13/2022] Open
Abstract
Articular cartilage remains among the most difficult tissues to regenerate due to its poor self-repair capacity. The lysyl oxidase family (LOX; also termed as protein-lysine 6-oxidase), mainly consists of lysyl oxidase (LO) and lysyl oxidase-like 1-4 (LOXL1-LOXL4), has been traditionally defined as cuproenzymes that are essential for stabilization of extracellular matrix, particularly cross-linking of collagen and elastin. LOX is essential in the musculoskeletal system, particularly cartilage. LOXs-mediated collagen cross-links are essential for the functional integrity of articular cartilage. Appropriate modulation of the expression or activity of certain LOX members selectively may become potential promising strategy for cartilage repair. In the current review, we summarized the advances of LOX in cartilage homeostasis and functioning, as well as copper-mediated activation of LOX through hypoxia-responsive signaling axis during recent decades. Also, the molecular signaling network governing LOX expression has been summarized, indicating that appropriate modulation of hypoxia-responsive-signaling-directed LOX expression through manipulation of bioavailability of copper and oxygen is promising for further clinical implications of cartilage regeneration, which has emerged as a potential therapeutic approach for cartilage rejuvenation in tissue engineering and regenerative medicine. Therefore, targeted regulation of copper-mediated hypoxia-responsive signalling axis for selective modulation of LOX expression may become potential effective therapeutics for enhanced cartilage regeneration and rejuvenation in future clinical implications.
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Affiliation(s)
- Weiping Lin
- Department of Orthopaedics and Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Liangliang Xu
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Gang Li
- Department of Orthopaedics and Traumatology, Stem Cells and Regenerative Medicine Laboratory, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China.,MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
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Ion R, Necula MG, Mazare A, Mitran V, Neacsu P, Schmuki P, Cimpean A. Drug Delivery Systems Based on Titania Nanotubes and Active Agents for Enhanced Osseointegration of Bone Implants. Curr Med Chem 2020; 27:854-902. [PMID: 31362646 DOI: 10.2174/0929867326666190726123229] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 01/16/2019] [Accepted: 05/04/2019] [Indexed: 12/31/2022]
Abstract
TiO2 nanotubes (TNTs) are attractive nanostructures for localized drug delivery. Owing to their excellent biocompatibility and physicochemical properties, numerous functionalizations of TNTs have been attempted for their use as therapeutic agent delivery platforms. In this review, we discuss the current advances in the applications of TNT-based delivery systems with an emphasis on the various functionalizations of TNTs for enhancing osteogenesis at the bone-implant interface and for preventing implant-related infection. Innovation of therapies for enhancing osteogenesis still represents a critical challenge in regeneration of bone defects. The overall concept focuses on the use of osteoconductive materials in combination with the use of osteoinductive or osteopromotive factors. In this context, we highlight the strategies for improving the functionality of TNTs, using five classes of bioactive agents: growth factors (GFs), statins, plant derived molecules, inorganic therapeutic ions/nanoparticles (NPs) and antimicrobial compounds.
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Affiliation(s)
- Raluca Ion
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Madalina Georgiana Necula
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Anca Mazare
- University of Erlangen-Nuremberg, Department of Materials Science, Erlangen, Germany
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Patricia Neacsu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Patrik Schmuki
- University of Erlangen-Nuremberg, Department of Materials Science, Erlangen, Germany
| | - Anisoara Cimpean
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Bucharest, Romania
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Zhang P, Li Y, Tang Y, Shen H, Li J, Yi Z, Ke Q, Xu H. Copper-Based Metal-Organic Framework as a Controllable Nitric Oxide-Releasing Vehicle for Enhanced Diabetic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18319-18331. [PMID: 32216291 DOI: 10.1021/acsami.0c01792] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Chronic wounds are one of the most serious complications of diabetes mellitus. Even though utilizing nitric oxide (NO) as a gas medicine to repair diabetic wounds presents a promising strategy, controlling the NO release behavior in the affected area, which is vital for NO-based therapy, still remains a significant challenge. In this work, a copper-based metal-organic framework, namely, HKUST-1, has been introduced as a NO-loading vehicle, and a NO sustained release system with the core-shell structure has been designed through the electrospinning method. The results show that the NO is quantificationally and stably loaded in the HKUST-1 particles, and the NO-loaded HKUST-1 particles are well incorporated into the core layer of the coaxial nanofiber. Therefore, NO can be controllably released with an average release rate of 1.74 nmol L-1 h-1 for more than 14 days. Moreover, the additional copper ions released from the degradable HKUST-1 play a synergistic role with NO to promote endothelial cell growth and significantly improve the angiogenesis, collagen deposition as well as anti-inflammatory property in the wound bed, which eventually accelerate the diabetic wound healing. These results suggest that such a copper-based metal-organic framework material as a controllable NO-releasing vehicle is a highly efficient therapy for diabetic wounds.
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Affiliation(s)
- Pengju Zhang
- College of Chemistry and Materials Science, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
| | - You Li
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Yaohui Tang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Hui Shen
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jiankai Li
- College of Chemistry and Materials Science, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
| | - Zhengfang Yi
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Qinfei Ke
- College of Chemistry and Materials Science, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
- Shanghai Institute of Technology, School of Materials Science and Engineering, No. 120 Caobao Road, Shanghai 200235, China
| | - He Xu
- College of Chemistry and Materials Science, Shanghai Normal University, No. 100 Guilin Road, Shanghai 200234, China
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74
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Zimbone S, Santoro AM, La Mendola D, Giacomelli C, Trincavelli ML, Tomasello MF, Milardi D, García-Viñuales S, Sciacca MFM, Martini C, Grasso G. The Ionophoric Activity of a Pro-Apoptotic VEGF165 Fragment on HUVEC Cells. Int J Mol Sci 2020; 21:E2866. [PMID: 32325956 PMCID: PMC7216235 DOI: 10.3390/ijms21082866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 12/19/2022] Open
Abstract
Copper plays an important role as a regulator in many pathologies involving the angiogenesis process. In cancerogenesis, tumor progression, and angiogenic diseases, copper homeostasis is altered. Although many details in the pathways involved are still unknown, some copper-specific ligands have been successfully used as therapeutic agents. Copper-binding peptides able to modulate angiogenesis represent a possible way to value new drugs. We previously reported that a fragment (VEGF73-101) of vascular endothelial growth factor (VEGF165), a potent angiogenic, induced an apoptotic effect on human umbilical vein endothelial cells. The aim of this study was to investigate the putative copper ionophoric activity of VEGF73-101, as well as establish a relationship between the structure of the peptide fragment and the cytotoxic activity in the presence of copper(II) ions. Here, we studied the stoichiometry and the conformation of the VEGF73-101/Cu(II) complexes and some of its mutated peptides by electrospray ionization mass spectrometry and circular dichroism spectroscopy. Furthermore, we evaluated the effect of all peptides in the absence and presence of copper ions by cell viability and cytofuorimetric assays. The obtained results suggest that VEGF73-101 could be considered an interesting candidate in the development of new molecules with ionophoric properties as agents in antiangiogenic therapeutic approaches.
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Affiliation(s)
- Stefania Zimbone
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
| | - Anna M. Santoro
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
| | - Diego La Mendola
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy; (D.L.M.); (C.G.); (M.L.T.); (C.M.)
| | - Chiara Giacomelli
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy; (D.L.M.); (C.G.); (M.L.T.); (C.M.)
| | - Maria L. Trincavelli
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy; (D.L.M.); (C.G.); (M.L.T.); (C.M.)
| | - Marianna F. Tomasello
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
| | - Danilo Milardi
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
| | - Sara García-Viñuales
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
| | - Michele F. M. Sciacca
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
| | - Claudia Martini
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno Pisano 6, 56126 Pisa, Italy; (D.L.M.); (C.G.); (M.L.T.); (C.M.)
| | - Giulia Grasso
- CNR Istituto di Cristallografia Sede Secondaria di Catania, Via Gaifami 18, 95126 Catania, Italy; (S.Z.); (A.M.S.); (M.F.T.); (D.M.); (S.G.-V.); (M.F.M.S.)
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75
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Liu T, Karlsen M, Karlberg AM, Redalen KR. Hypoxia imaging and theranostic potential of [ 64Cu][Cu(ATSM)] and ionic Cu(II) salts: a review of current evidence and discussion of the retention mechanisms. EJNMMI Res 2020; 10:33. [PMID: 32274601 PMCID: PMC7145880 DOI: 10.1186/s13550-020-00621-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 03/19/2020] [Indexed: 02/07/2023] Open
Abstract
Background Tumor hypoxia (low tissue oxygenation) is an adverse condition of the solid tumor environment, associated with malignant progression, radiotherapy resistance, and poor prognosis. One method to detect tumor hypoxia is by positron emission tomography (PET) with the tracer [64Cu][Cu-diacetyl-bis(N(4)-methylthiosemicarbazone)] ([64Cu][Cu(ATSM)]), as demonstrated in both preclinical and clinical studies. In addition, emerging studies suggest using [64Cu][Cu(ATSM)] for molecular radiotherapy, mainly due to the release of therapeutic Auger electrons from copper-64, making [64Cu][Cu(ATSM)] a “theranostic” agent. However, the radiocopper retention based on a metal-ligand dissociation mechanism under hypoxia has long been controversial. Recent studies using ionic Cu(II) salts as tracers have raised further questions on the original mechanism and proposed a potential role of copper itself in the tracer uptake. We have reviewed the evidence of using the copper radiopharmaceuticals [60/61/62/64Cu][Cu(ATSM)]/ionic copper salts for PET imaging of tumor hypoxia, their possible therapeutic applications, issues related to the metal-ligand dissociation mechanism, and possible explanations of copper trapping based on studies of the copper metabolism under hypoxia. Results We found that hypoxia selectivity of [64Cu][Cu(ATSM)] has been clearly demonstrated in both preclinical and clinical studies. Preclinical therapeutic studies in mice have also demonstrated promising results, recently reporting significant tumor volume reductions and improved survival in a dose-dependent manner. Cu(II)-[Cu(ATSM)] appears to be accumulated in regions with substantially higher CD133+ expression, a marker for cancer stem cells. This, combined with the reported requirement of copper for activation of the hypoxia inducible factor 1 (HIF-1), provides a possible explanation for the therapeutic effects of [64Cu][Cu(ATSM)]. Comparisons between [64Cu][Cu(ATSM)] and ionic Cu(II) salts have showed similar results in both imaging and therapeutic studies, supporting the argument for the central role of copper itself in the retention mechanism. Conclusions We found promising evidence of using copper-64 radiopharmaceuticals for both PET imaging and treatment of hypoxic tumors. The Cu(II)-[Cu(ATSM)] retention mechanism remains controversial and future mechanistic studies should be focused on understanding the role of copper itself in the hypoxic tumor metabolism.
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Affiliation(s)
- Tengzhi Liu
- Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway.,Department of Radiology and Nuclear Medicine, St. Olavs hospital, Trondheim University Hospital, Trondheim, Norway
| | - Morten Karlsen
- Department of Radiology and Nuclear Medicine, St. Olavs hospital, Trondheim University Hospital, Trondheim, Norway
| | - Anna Maria Karlberg
- Department of Radiology and Nuclear Medicine, St. Olavs hospital, Trondheim University Hospital, Trondheim, Norway.,Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kathrine Røe Redalen
- Department of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway.
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76
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Ge Y, Wang L, Li D, Zhao C, Li J, Liu T. Exploring the Extended Biological Functions of the Human Copper Chaperone of Superoxide Dismutase 1. Protein J 2020; 38:463-471. [PMID: 31140034 DOI: 10.1007/s10930-019-09824-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The human copper chaperone of SOD1 (designated as CCS) was discovered more than two decades ago. It is an important copper binding protein and a homolog of Saccharomyces cerevisiae LYS7. To date, no studies have systematically or specifically elaborated on the functional development of CCS. This review summarizes the essential information about CCS, such as its localization, 3D structure, and copper binding ability. An emphasis is placed on its interacting protein partners and its biological functions in vivo and in vitro. Three-dimensional structural analysis revealed that CCS is composed of three domains. Its primary molecular function is the delivery of copper to SOD1 and activation of SOD1. It has also been reported to bind to XIAP, Mia40, and X11α, and other proteins. Through these protein partners, CCS is implicated in several vital biological processes in vivo, such as copper homeostasis, apoptosis, angiogenesis and oxidative stress. This review is anticipated to assist scientists in systematically understanding the latest research developments of CCS for facilitating the development of new therapeutics targeting CCS in the future.
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Affiliation(s)
- Yan Ge
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168 Huaguan Road, Chenghua District, Chengdu, 610052, China.,International Phage Drug Research Center, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Lu Wang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168 Huaguan Road, Chenghua District, Chengdu, 610052, China. .,International Phage Drug Research Center, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China.
| | - Duanhua Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168 Huaguan Road, Chenghua District, Chengdu, 610052, China.,International Phage Drug Research Center, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Chen Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168 Huaguan Road, Chenghua District, Chengdu, 610052, China.,International Phage Drug Research Center, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Jinjun Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168 Huaguan Road, Chenghua District, Chengdu, 610052, China.,International Phage Drug Research Center, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
| | - Tao Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 168 Huaguan Road, Chenghua District, Chengdu, 610052, China.,International Phage Drug Research Center, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, China
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77
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Xiao Y, Wang T, Song X, Yang D, Chu Q, Kang YJ. Copper promotion of myocardial regeneration. Exp Biol Med (Maywood) 2020; 245:911-921. [PMID: 32148090 DOI: 10.1177/1535370220911604] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
IMPACT STATEMENT Copper promotes angiogenesis, but the mechanistic insights have not been fully elucidated until recently. In addition, the significance of copper promotion of angiogenesis in myocardial regeneration was increasingly revealed. Copper critically participates in the regulation of hypoxia-inducible factor 1 (HIF-1) of angiogenic gene expression. Interestingly, myocardial ischemia causes copper efflux from the heart, leading to suppression of angiogenesis, although HIF-1α, the critical subunit of HIF-1, remains accumulated in the ischemic myocardium. Strategies targeting copper specific delivery to the ischemic myocardium lead to selective activation of HIF-1-regulated angiogenic gene expression. Vascularization of the ischemic myocardium re-establishes the tissue injury microenvironment, and rebuilds the conduit for communication between the tissue injury signals and the remote regenerative responses including stem cells. This process promotes myocardial regeneration. Thus, a simple and effective copper supplementation to the ischemic myocardium would become a novel therapeutic approach to the treatment of patients with ischemic heart diseases.
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Affiliation(s)
- Ying Xiao
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Tao Wang
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Xin Song
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Dan Yang
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Qing Chu
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Y James Kang
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
- Memphis Institute of Regenerative Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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78
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Wolf-Brandstetter C, Beutner R, Hess R, Bierbaum S, Wagner K, Scharnweber D, Gbureck U, Moseke C. Multifunctional calcium phosphate based coatings on titanium implants with integrated trace elements. Biomed Mater 2020; 15:025006. [DOI: 10.1088/1748-605x/ab5d7b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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79
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Das B, Dadhich P, Pal P, Thakur S, Neogi S, Dhara S. Carbon nano dot decorated copper nanowires for SERS-Fluorescence dual-mode imaging/anti-microbial activity and enhanced angiogenic activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 227:117669. [PMID: 31698154 DOI: 10.1016/j.saa.2019.117669] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 10/09/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Copper nanoparticles are explored significantly for their antimicrobial activity, especially for antibiotic-resistant strain infections. However, copper has severe toxic responses and mostly it is due to its generation capability of reactive oxygen species (ROS) molecules while interacting with in vitro or in vivo systems. In the current study, wire shaped copper nanostructures were synthesized via microwave irradiation with single step doping of carbon nanodots (CDs). The synthesized material (CuCs) was characterized by UV-Vis spectroscopy, fluorescence spectroscopy, FTIR, TEM, FESEM, XRD, DLS, and XPS. The fluorescence spectroscopy, microscopy and Raman spectroscopy results suggested CuCs to work well as a bi-modal imaging nanoprobe (fluorescence/SERS). The cell culture studies prove significant cytocompatibility and ROS scavenging property of the samples with respect to control. Further, CuCs-gelatin nanocomposite thin films were prepared and implanted into rodent deep wound model. The histological study has showed enhanced angiogenesis in the subcutaneous region. The results were validated by immuno-histochemistry. The ROS scavenging and enhanced angiogenesis were validated via gene expression studies and a HIF-α induced enhanced angiogenesis mechanism was also proposed for better wound healing.
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Affiliation(s)
- Bodhisatwa Das
- Department of Biomedical Engineering, Rutgers the State University of New Jersey, NJ, USA; School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India.
| | - Prabhash Dadhich
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | - Pallabi Pal
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
| | - Shaila Thakur
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, India
| | - Sudarshan Neogi
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, India
| | - Santanu Dhara
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, India
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80
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Targeting the lysyl oxidases in tumour desmoplasia. Biochem Soc Trans 2019; 47:1661-1678. [DOI: 10.1042/bst20190098] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 02/08/2023]
Abstract
The extracellular matrix (ECM) is a fundamental component of tissue microenvironments and its dysregulation has been implicated in a number of diseases, in particular cancer. Tumour desmoplasia (fibrosis) accompanies the progression of many solid cancers, and is also often induced as a result of many frontline chemotherapies. This has recently led to an increased interest in targeting the underlying processes. The major structural components of the ECM contributing to desmoplasia are the fibrillar collagens, whose key assembly mechanism is the enzymatic stabilisation of procollagen monomers by the lysyl oxidases. The lysyl oxidase family of copper-dependent amine oxidase enzymes are required for covalent cross-linking of collagen (as well as elastin) molecules into the mature ECM. This key step in the assembly of collagens is of particular interest in the cancer field since it is essential to the tumour desmoplastic response. LOX family members are dysregulated in many cancers and consequently the development of small molecule inhibitors targeting their enzymatic activity has been initiated by many groups. Development of specific small molecule inhibitors however has been hindered by the lack of crystal structures of the active sites, and therefore alternate indirect approaches to target LOX have also been explored. In this review, we introduce the importance of, and assembly steps of the ECM in the tumour desmoplastic response focussing on the role of the lysyl oxidases. We also discuss recent progress in targeting this family of enzymes as a potential therapeutic approach.
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81
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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.
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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.
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82
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Dalisson B, Barralet J. Bioinorganics and Wound Healing. Adv Healthc Mater 2019; 8:e1900764. [PMID: 31402608 DOI: 10.1002/adhm.201900764] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/19/2019] [Indexed: 12/18/2022]
Abstract
Wound dressings and the healing enhancement (increasing healing speed and quality) are two components of wound care that lead to a proper healing. Wound care today consists mostly of providing an optimal environment by removing waste and necrotic tissues from a wound, preventing infections, and keeping the wounds adequately moist. This is however often not enough to re-establish the healing process in chronic wounds; with the local disruption of vascularization, the local environment is lacking oxygen, nutrients, and has a modified ionic and molecular concentration which limits the healing process. This disruption may affect cellular ionic pumps, energy production, chemotaxis, etc., and will affect the healing process. Biomaterials for wound healing range from simple absorbents to sophisticated bioactive delivery vehicles. Often placing a material in or on a wound can change multiple parameters such as pH, ionic concentration, and osmolarity, and it can be challenging to pinpoint key mechanism of action. This article reviews the literature of several inorganic ions and molecules and their potential effects on the different wound healing phases and their use in new wound dressings.
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Affiliation(s)
| | - Jake Barralet
- Faculty of DentistryMcGill University Montreal H3A 1G1 QC Canada
- Division of OrthopaedicsDepartment of SurgeryFaculty of MedicineMcGill University Montreal H4A 0A9 QC Canada
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83
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De Luca A, Barile A, Arciello M, Rossi L. Copper homeostasis as target of both consolidated and innovative strategies of anti-tumor therapy. J Trace Elem Med Biol 2019; 55:204-213. [PMID: 31345360 DOI: 10.1016/j.jtemb.2019.06.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/28/2019] [Accepted: 06/14/2019] [Indexed: 12/26/2022]
Abstract
BACKGROUND Copper was reported to be involved in the onset and progression of cancer. Proteins in charge of copper uptake and distribution, as well as cuproenzymes, are altered in cancer. More recently, proteins involved in signaling cascades, regulating cell proliferation, and anti-apoptotic protein factors were found to interact with copper. Therefore, therapeutic strategies using copper complexing molecules have been proposed for cancer therapy and used in clinical trials. OBJECTIVES This review will focus on novel findings about the involvement of copper and cupro-proteins in cancer dissemination process, epithelium to mesenchymal transition and vascularization. Particularly, implication of well-established (e.g. lysil oxidase) or newly identified copper-binding proteins (e.g. MEMO1), as well as their interplay, will be discussed. Moreover, we will describe recently synthesized copper complexes, including plant-derived ones, and their efficacy in contrasting cancer development. CONCLUSIONS The research on the involvement of copper in cancer is still an open field. Further investigation is required to unveil the mechanisms involved in copper delivery to the novel copper-binding proteins, which may identify other possible gene and protein targets for cancer therapy.
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Affiliation(s)
| | - Anna Barile
- Department of Biology, University of Rome Tor Vergata, Rome, Italy.
| | - Mario Arciello
- Department of Biology, University of Rome Tor Vergata, Rome, Italy.
| | - Luisa Rossi
- Department of Biology, University of Rome Tor Vergata, Rome, Italy.
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84
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The Use of Copper as an Antimicrobial Agent in Health Care, Including Obstetrics and Gynecology. Clin Microbiol Rev 2019; 32:32/4/e00125-18. [PMID: 31413046 DOI: 10.1128/cmr.00125-18] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Health care-associated infections (HAIs) are a global problem associated with significant morbidity and mortality. Controlling the spread of antimicrobial-resistant bacteria is a major public health challenge, and antimicrobial resistance has become one of the most important global problems in current times. The antimicrobial effect of copper has been known for centuries, and ongoing research is being conducted on the use of copper-coated hard and soft surfaces for reduction of microbial contamination and, subsequently, reduction of HAIs. This review provides an overview of the historical and current evidence of the antimicrobial and wound-healing properties of copper and explores its possible utility in obstetrics and gynecology.
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85
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Copper nanoparticles promote rapid wound healing in acute full thickness defect via acceleration of skin cell migration, proliferation, and neovascularization. Biochem Biophys Res Commun 2019; 517:684-690. [PMID: 31400855 DOI: 10.1016/j.bbrc.2019.07.110] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 07/27/2019] [Indexed: 12/11/2022]
Abstract
Worldwide, impaired wound healing leads to a large burden of morbidity and mortality. Current treatments have several limitations. Recently, nanomaterials such as copper nanoparticles (CuNPs) have attracted considerable research interest. Here, we investigated the potential therapeutic effect of various CuNPs concentrations (1 μM, 10 μM, 100 μM, 1 mM, and 10 mM) and sizes (20 nm, 40 nm, 80 nm) in wound healing. Our results revealed that the 10 μM concentration of 40 nm CuNPs and the 1 μM concentration of 80 nm CuNPs were not toxic to the cultured fibroblast, endothelial, and keratinocyte cells, and also 1 μM concentration of 80 nm CuNPs enhanced endothelial cell migration and proliferation. Extensive assessment of in vivo wound healing demonstrated that the 1 μM concentration of 80 nm CuNPs accelerated wound healing over a shorter time via formation of granulation tissue and higher new blood vessels. Importantly, serum biochemical analysis confirmed that the 40 nm CuNP (10 μM) and 80 nm CuNP (1 μM) did not show any accumulation in the liver during wound healing. Overall, our results have indicated that the 1 μM concentration of 80 nm CuNPs is a promising NP for wound healing applications without adverse side effects.
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86
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Chen X, Hu JG, Huang YZ, Li S, Li SF, Wang M, Xia HW, Li-Ling J, Xie HQ. Copper promotes the migration of bone marrow mesenchymal stem cells via Rnd3-dependent cytoskeleton remodeling. J Cell Physiol 2019; 235:221-231. [PMID: 31187497 DOI: 10.1002/jcp.28961] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 05/21/2019] [Accepted: 05/22/2019] [Indexed: 02/05/2023]
Abstract
The motility of mesenchymal stem cells (MSCs) is highly related to their homing in vivo, a critical issue in regenerative medicine. Our previous study indicated copper (Cu) might promote the recruitment of endogenous MSCs in canine esophagus defect model. In this study, we investigated the effect of Cu on the motility of bone marrow mesenchymal stem cells (BMSCs) and the underlying mechanism in vitro. Cu supplementation could enhance the motility of BMSCs, and upregulate the expression of hypoxia-inducible factor 1α (Hif1α) at the protein level, and upregulate the expression of rho family GTPase 3 (Rnd3) at messenger RNA and protein level. When Hif1α was silenced by small interfering RNA (siRNA), Cu-induced Rnd3 upregulation was blocked. When Rnd3 was silenced by siRNA, the motility of BMSCs was decreased with or without Cu supplementation, and Cu-induced cytoskeleton remodeling was neutralized. Furthermore, overexpression of Rnd3 also increased the motility of BMSCs and induced cytoskeleton remodeling. Overall, our results demonstrated that Cu enhanced BMSCs migration through, at least in part, cytoskeleton remodeling via Hif1α-dependent upregulation of Rnd3. This study provided an insight into the mechanism of the effect of Cu on the motility of BMSCs, and a theoretical foundation of applying Cu to improve the recruitment of BMSCs in tissue engineering and cytotherapy.
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Affiliation(s)
- Xi Chen
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Jun-Gen Hu
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Yi-Zhou Huang
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Shun Li
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Sheng-Fu Li
- Key Laboratory of Transplant Engineering and Immunology of Ministry of Health, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Min Wang
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Hong-Wei Xia
- Laboratory of Molecular Targeted Therapy in Oncology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Jesse Li-Ling
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
| | - Hui-Qi Xie
- Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, Sichuan, China
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87
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Dual functional approaches for osteogenesis coupled angiogenesis in bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109761. [PMID: 31349418 DOI: 10.1016/j.msec.2019.109761] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/11/2019] [Accepted: 05/15/2019] [Indexed: 12/31/2022]
Abstract
Bone fracture healing is a multistep and overlapping process of inflammation, angiogenesis and osteogenesis. It is initiated by inflammation, causing the release of various cytokines and growth factors. It leads to the recruitment of stem cells and formation of vasculature resulting in the functional bone formation. This combined phenomenon is used by bone tissue engineers from past few years to address the problem of vasculature and osteogenic differentiation during bone regeneration. In this review, we have discussed all major studies reporting the dual functioning approach to promote osteogenesis coupled angiogenesis using various scaffolds. These scaffolds are broadly classified into four types based on the nature of their structural and functional components. The functionality of the scaffold is either due to the structural components or the loaded cargo which conducts or induces the coupled functionality. Dual delivery system for osteoinductive and angioinductive factors ensures the co-delivery of two different types of molecules to induce osteogenesis and angiogenesis. Single delivery scaffold for angioinductive and osteoinductive molecule releases single type of molecules which could induce both angiogenesis and osteogenesis. Osteoconductive scaffold consisted of bone constituents releases angioinductive factors. Osteoconductive and angioconductive scaffold composed of components which provide the native substrate features for osteogenesis and angiogenesis. This review article also discusses the studies highlighting the synergism of physico-chemical stimuli as dual functioning feature to enhance angiogenesis and osteogenesis simultaneously. In addition, this article covers one of the least discussed area of the bone regeneration i.e. 'cartilage formation as a median between angiogenesis and osteogenesis'.
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88
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Karginova O, Weekley CM, Raoul A, Alsayed A, Wu T, Lee SSY, He C, Olopade OI. Inhibition of Copper Transport Induces Apoptosis in Triple-Negative Breast Cancer Cells and Suppresses Tumor Angiogenesis. Mol Cancer Ther 2019; 18:873-885. [PMID: 30824611 DOI: 10.1158/1535-7163.mct-18-0667] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 12/18/2018] [Accepted: 02/22/2019] [Indexed: 11/16/2022]
Abstract
Treatment of advanced breast cancer remains challenging. Copper and some of the copper-dependent proteins are emerging therapeutic targets because they are essential for cell proliferation and survival, and have been shown to stimulate angiogenesis and metastasis. Here, we show that DCAC50, a recently developed small-molecule inhibitor of the intracellular copper chaperones, ATOX1 and CCS, reduces cell proliferation and elevates oxidative stress, triggering apoptosis in a panel of triple-negative breast cancer (TNBC) cells. Inhibition of ATOX1 activity with DCAC50 disrupts copper homeostasis, leading to increased copper levels, altered spatial copper redistribution, and accumulation of ATP7B to the cellular perinuclear region. The extent and impact of this disruption to copper homeostasis vary across cell lines and correlate with cellular baseline copper and glutathione levels. Ultimately, treatment with DCAC50 attenuates tumor growth and suppresses angiogenesis in a xenograft mouse model, and prevents endothelial cell network formation in vitro Co-treatment with paclitaxel and DCAC50 enhances cytotoxicity in TNBC and results in favorable dose reduction of both drugs. These data demonstrate that inhibition of intracellular copper transport targets tumor cells and the tumor microenvironment, and is a promising approach to treat breast cancer.
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Affiliation(s)
- Olga Karginova
- Department of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, Illinois
| | - Claire M Weekley
- Department of Chemistry, Institute for Biophysical Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois.,Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois
| | - Akila Raoul
- Department of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, Illinois
| | - Alhareth Alsayed
- Department of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, Illinois
| | - Tong Wu
- Department of Chemistry, Institute for Biophysical Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois.,Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois
| | - Steve Seung-Young Lee
- Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, Illinois
| | - Chuan He
- Department of Chemistry, Institute for Biophysical Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois.,Department of Biochemistry and Molecular Biology, Institute for Biophysical Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois
| | - Olufunmilayo I Olopade
- Department of Medicine, Section of Hematology/Oncology, The University of Chicago, Chicago, Illinois. .,Center for Clinical Cancer Genetics, The University of Chicago, Chicago, Illinois
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89
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Affiliation(s)
- Shiqun Shao
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of EducationCollege of Chemical and Biological Engineering, Zhejiang University Hangzhou 310027 China
| | - Jingxing Si
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang ProvinceClinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College Hangzhou 310014 China
| | - Youqing Shen
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of EducationCollege of Chemical and Biological Engineering, Zhejiang University Hangzhou 310027 China
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90
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Zhang J, Wu H, He F, Wu T, Zhou L, Ye J. Concentration-dependent osteogenic and angiogenic biological performances of calcium phosphate cement modified with copper ions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:1199-1212. [PMID: 30889654 DOI: 10.1016/j.msec.2019.02.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 01/26/2019] [Accepted: 02/13/2019] [Indexed: 01/14/2023]
Abstract
Development of multifunctional bone grafting biomaterials with both osteogenesis and angiogenesis properties have earned increasing interest in the field of regenerative medicine. In the present investigation, copper-doped β-tricalcium phosphate (Cu-TCP) powders were successfully synthesized. And Cu-containing calcium phosphate cement (Cu-CPC) was acquired through uniformly mixing CPC and Cu-TCP powders, with Cu-TCP serving as the donor of Cu2+. Cu-CPC exhibited suitable setting time, and the incorporation of Cu-TCP aggregating into CPC exhibited positive effect on the compressive strength while Cu2+ was in lower concentration. Investigation results showed that Cu-CPC had relatively low releasing amount of Cu2+, which was attributed to the re-bonding of Cu2+ into the newly formed HA crystals on surface. In vitro osteogenesis and angiogenesis properties of Cu-CPC were systematically evaluated through co-culture with mouse bone marrow stromal cells (mBMSCs) and human umbilical vein endothelial cells (HUVECs) respectively. The results indicated dose-dependent biological functions of Cu2+ in Cu-CPCs. The mBMSCs and HUVECs showed well activity and attachment morphology on TCP/CPC, 0.05 Cu-TCP/CPC, 0.1 Cu-TCP/CPC. The upregulated osteogenic-related genes expression and angiogenic-related genes expression were detected with lower Cu2+ content. Taken together, Cu-containing CPC is of great potential for the regeneration of vascularized new bone.
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Affiliation(s)
- Jing Zhang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Huae Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Fupo He
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Tingting Wu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital, Jinan University, Guangzhou 510006, China
| | - Lian Zhou
- Department of Stomatology, Peking Union Medical College (PUMC) Hospital, Chinese Academy of Medical Science (CAMS) and PUMC, Beijing 100730, China
| | - Jiandong Ye
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China.
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91
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Fu H, Ding X, Zhang W, Kang YJ. Profiling of nuclear copper-binding proteins under hypoxic condition. Biometals 2019; 32:329-341. [PMID: 30739301 DOI: 10.1007/s10534-019-00171-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 01/14/2019] [Indexed: 02/05/2023]
Abstract
Under hypoxic condition, copper (Cu) accumulates in cell nuclei, and regulates the activity of hypoxia-inducible factor-1 (HIF-1) through Cu-binding proteins (CuBPs). To understand the CuBPs in the nucleus, proteomic approach was undertaken to explore the dynamic changes of the CuBPs in response to hypoxia. Human umbilical vein endothelial cells (HUVECs) were treated with dimethyloxalylglycine in a final concentration of 100 μM for 4 h to induce hypoxia, resulting in the accumulation of HIF-1α and Cu in the nucleus. Cu immobilized metal affinity chromatography was applied to extract the CuBPs, followed by identification using nanoliter-liquid chromatograpy combined with quadrupole time of flight tandem mass spectrometry (nanoLC-Q-TOF-MS/MS). There were 278 nuclear proteins that were found as CuBPs in the induced hypoxic group in contrast to 218 CuBPs in the control group. Functional annotation of these proteins in gene ontology category revealed that proteins participating in negative regulation of transcription from RNA polymerase II promoter were dramatically enriched by induced hypoixc treatment. Label-free quantitative proteomic approach identified quantitative changes of nuclear proteome; of 17 differentially expressed proteins, 8 were downregulated and 9 were upregulated in the induced hypoxic nuclei. Four of the 17 proteins were CuBPs, including ILF2 and TRA2B, both were downregulated, and LMNA and HSPB1, both were upregulated. We confirmed the protein change of ALB, LMNA and HSPB1 (HSP27) in real hypoxia, and suggested that the identified CuBPs could be the target for further study of Cu regulation of HIF-1 activity in the nucleus.
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Affiliation(s)
- Haiying Fu
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, 610041, Sichuan, China
| | - Xueqin Ding
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, 610041, Sichuan, China
| | - Wenjing Zhang
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, 610041, Sichuan, China
| | - Y James Kang
- Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, 610041, Sichuan, China.
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92
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Esser TU, Roshanbinfar K, Engel FB. Promoting vascularization for tissue engineering constructs: current strategies focusing on HIF-regulating scaffolds. Expert Opin Biol Ther 2019; 19:105-118. [PMID: 30570406 DOI: 10.1080/14712598.2019.1561855] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Vascularization remains one of the greatest yet unmet challenges in tissue engineering. When engineered tissues are scaled up to therapeutically relevant dimensions, their demand of oxygen and nutrients can no longer be met by diffusion. Thus, there is a need for perfusable vascular structures. Hypoxia-inducible factors (HIF) act as transcriptional oxygen sensors and regulate a multitude of genes involved in adaptive processes to hypoxia, including angiogenesis. Thus, targeting HIFs is a promising strategy to induce vascularization of engineered tissues. AREAS COVERED Here we review current vascularization strategies and summarize the present knowledge regarding activation of HIF signaling by ions, iron chelating agents, α-Ketoglutarate (αKG) analogues, and the lipid-lowering drug simvastatin to induce angiogenesis. Specifically, we focus on the incorporation of HIF-activating agents into biomaterials and scaffolds for controlled release. EXPERT OPINION Vascularization of tissue constructs through activation of upstream regulators of angiogenesis offers advantages but also suffers from drawbacks. HIFs can induce a complete angiogenic program; however, this program appears to be too slow to vascularize larger constructs before cell death occurs. It is therefore crucial that HIF-activation is combined with cell protective strategies and prevascularization techniques to obtain fully vascularized, vital tissues of therapeutically relevant dimensions.
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Affiliation(s)
- Tilman U Esser
- a Experimental Renal and Cardiovascular Research, Department of Nephropathology , Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) , Erlangen , Germany
| | - Kaveh Roshanbinfar
- a Experimental Renal and Cardiovascular Research, Department of Nephropathology , Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) , Erlangen , Germany
| | - Felix B Engel
- a Experimental Renal and Cardiovascular Research, Department of Nephropathology , Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) , Erlangen , Germany
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93
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Wu Z, Zhang W, Kang YJ. Copper affects the binding of HIF-1α to the critical motifs of its target genes. Metallomics 2019; 11:429-438. [PMID: 30566157 DOI: 10.1039/c8mt00280k] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Copper regulates the target gene selection of HIF-1α under hypoxic conditions by affecting HIF-1α-DNA binding patterns across the genome.
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Affiliation(s)
- Zhijuan Wu
- Regenerative Medicine Research Center
- Sichuan University West China Hospital
- Chengdu
- China
| | - Wenjing Zhang
- Regenerative Medicine Research Center
- Sichuan University West China Hospital
- Chengdu
- China
- Memphis Institute of Regenerative Medicine
| | - Y. James Kang
- Regenerative Medicine Research Center
- Sichuan University West China Hospital
- Chengdu
- China
- Memphis Institute of Regenerative Medicine
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94
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Liu J, Chen C, Liu Y, Sun X, Ding X, Qiu L, Han P, James Kang Y. Trientine selectively delivers copper to the heart and suppresses pressure overload-induced cardiac hypertrophy in rats. Exp Biol Med (Maywood) 2018; 243:1141-1152. [PMID: 30472883 DOI: 10.1177/1535370218813988] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Dietary copper supplementation reverses pressure overload-induced cardiac hypertrophy by copper replenishment in the heart. A copper-selective chelator, trientine (triethylenetetramine [TETA]), reverses left ventricular hypertrophy associated with diabetes also by copper replenishment in the heart. The present study was undertaken to address the critical issue how TETA delivers copper to the heart. Adult male Sprague-Dawley rats were subjected to transverse aortic constriction (TAC) to induce cardiac hypertrophy. Eight weeks after the TAC surgery, cardiac hypertrophy was developed and copper content in the heart was reduced. TETA was then administrated by gavage in two different dosages (21.9 or 87.6 mg/kg day) for six weeks. The results showed that in the lower dosage, TETA replenished copper contents in the heart, along with a decrease in the copper concentration in the blood and kidney, and an increase in the urine. In the higher dosage, TETA did not replenish copper contents in the heart, but markedly increased copper concentrations in the urine and decreased those in the blood and kidney. Neither lower nor higher TETA dosage altered copper concentrations in other organs. Corresponding to myocardial copper replenishment, the lower dose TETA suppresses cardiac hypertrophy, as judged by a reduction in the left ventricle wall thickness and a decrease in the heart size, and diminished cardiac fibrosis, as reflected by a decrease in collagen I content. TETA in the higher dose not only did not suppress cardiac hypertrophy, but also caused cardiac hypertrophy in sham-operated rats. TETA-mediated myocardial copper restoration is independent of copper transporter-1 or -2 but related to an energy-dependent transportation. This study demonstrates that low-dose TETA functions as a copper chaperone, selectively delivering copper to the copper-deprived heart through an active transportation; in higher doses, TETA simply retains its chelator function, removing copper from the body by urinary excretion. Impact statement Our study reveals that TETA, traditionally regarded as a copper chelator, in lower doses delivers copper selectively to the heart through a mechanism independent of copper transporter-1 or -2. Copper supplementation by a lower dose of TETA suppresses pressure overload-induced cardiac hypertrophy. Since ischemic heart disease and hypertrophic cardiomyopathy are accompanied by myocardial copper loss, this approach of using a lower dose of TETA to supplement copper to the heart would help treat the disease condition of patients with such cardiac events.
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Affiliation(s)
- Jiaming Liu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chen Chen
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yinjie Liu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaorong Sun
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xueqin Ding
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liying Qiu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Pengfei Han
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y James Kang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China.,Memphis Institute of Regenerative Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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95
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Song M, Vos MB, McClain CJ. Copper-Fructose Interactions: A Novel Mechanism in the Pathogenesis of NAFLD. Nutrients 2018; 10:E1815. [PMID: 30469339 PMCID: PMC6266129 DOI: 10.3390/nu10111815] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 11/08/2018] [Accepted: 11/16/2018] [Indexed: 12/13/2022] Open
Abstract
Compelling epidemiologic data support the critical role of dietary fructose in the epidemic of obesity, metabolic syndrome and nonalcoholic fatty liver disease (NAFLD). The metabolic effects of fructose on the development of metabolic syndrome and NAFLD are not completely understood. High fructose intake impairs copper status, and copper-fructose interactions have been well documented in rats. Altered copper-fructose metabolism leads to exacerbated experimental metabolic syndrome and NAFLD. A growing body of evidence has demonstrated that copper levels are low in NAFLD patients. Moreover, hepatic and serum copper levels are inversely correlated with the severity of NAFLD. Thus, high fructose consumption and low copper availability are considered two important risk factors in NAFLD. However, the causal effect of copper-fructose interactions as well as the effects of fructose intake on copper status remain to be evaluated in humans. The aim of this review is to summarize the role of copper-fructose interactions in the pathogenesis of the metabolic syndrome and discuss the potential underlying mechanisms. This review will shed light on the role of copper homeostasis and high fructose intake and point to copper-fructose interactions as novel mechanisms in the fructose induced NAFLD.
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Affiliation(s)
- Ming Song
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY 40202, USA.
- Hepatobiology&Toxicology Center, University of Louisville School of Medicine, Louisville, KY 40202, USA.
| | - Miriam B Vos
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30307, USA.
- Children's Healthcare of Atlanta, Atlanta, GA 30322, USA.
| | - Craig J McClain
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, University of Louisville School of Medicine, Louisville, KY 40202, USA.
- Hepatobiology&Toxicology Center, University of Louisville School of Medicine, Louisville, KY 40202, USA.
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40202, USA.
- University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY 40202, USA.
- Robley Rex Veterans Affairs Medical Center, Louisville, KY 40206, USA.
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96
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Doguer C, Ha JH, Collins JF. Intersection of Iron and Copper Metabolism in the Mammalian Intestine and Liver. Compr Physiol 2018; 8:1433-1461. [PMID: 30215866 DOI: 10.1002/cphy.c170045] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iron and copper have similar physiochemical properties; thus, physiologically relevant interactions seem likely. Indeed, points of intersection between these two essential trace minerals have been recognized for many decades, but mechanistic details have been lacking. Investigations in recent years have revealed that copper may positively influence iron homeostasis, and also that iron may antagonize copper metabolism. For example, when body iron stores are low, copper is apparently redistributed to tissues important for regulating iron balance, including enterocytes of upper small bowel, the liver, and blood. Copper in enterocytes may positively influence iron transport, and hepatic copper may enhance biosynthesis of a circulating ferroxidase, ceruloplasmin, which potentiates iron release from stores. Moreover, many intestinal genes related to iron absorption are transactivated by a hypoxia-inducible transcription factor, hypoxia-inducible factor-2α (HIF2α), during iron deficiency. Interestingly, copper influences the DNA-binding activity of the HIF factors, thus further exemplifying how copper may modulate intestinal iron homeostasis. Copper may also alter the activity of the iron-regulatory hormone hepcidin. Furthermore, copper depletion has been noted in iron-loading disorders, such as hereditary hemochromatosis. Copper depletion may also be caused by high-dose iron supplementation, raising concerns particularly in pregnancy when iron supplementation is widely recommended. This review will cover the basic physiology of intestinal iron and copper absorption as well as the metabolism of these minerals in the liver. Also considered in detail will be current experimental work in this field, with a focus on molecular aspects of intestinal and hepatic iron-copper interplay and how this relates to various disease states. © 2018 American Physiological Society. Compr Physiol 8:1433-1461, 2018.
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Affiliation(s)
- Caglar Doguer
- Food Science and Human Nutrition Department, University of Florida, Florida, Gainesville, USA.,Nutrition and Dietetics Department, Namık Kemal University, Tekirdag, Turkey
| | - Jung-Heun Ha
- Food Science and Human Nutrition Department, University of Florida, Florida, Gainesville, USA.,Department of Food and Nutrition, Chosun University Note: Caglar Doguer and Jung-Heun Ha have contributed equally to this work., Gwangju, Korea
| | - James F Collins
- Food Science and Human Nutrition Department, University of Florida, Florida, Gainesville, USA
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97
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Intrauterine Exposure to Cadmium Reduces HIF-1 DNA-Binding Ability in Rat Fetal Kidneys. TOXICS 2018; 6:toxics6030053. [PMID: 30177602 PMCID: PMC6161213 DOI: 10.3390/toxics6030053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/07/2018] [Accepted: 08/29/2018] [Indexed: 02/06/2023]
Abstract
During embryonic development, some hypoxia occurs due to incipient vascularization. Under hypoxic conditions, gene expression is mainly controlled by hypoxia-inducible factor 1 (HIF-1). The activity of this transcription factor can be altered by the exposure to a variety of compounds; among them is cadmium (Cd), a nephrotoxic heavy metal capable of crossing the placenta and reaching fetal kidneys. The goal of the study was to determine Cd effects on HIF-1 on embryonic kidneys. Pregnant Wistar rats were exposed to a mist of isotonic saline solution or CdCl₂ (DDel = 1.48 mg Cd/kg/day), from gestational day (GD) 8 to 20. Embryonic kidneys were obtained on GD 21 for RNA and protein extraction. Results show that Cd exposure had no effect on HIF-1α and prolyl hydroxylase 2 protein levels, but it reduced HIF-1 DNA-binding ability, which was confirmed by a decrease in vascular endothelial growth factor (VEGF) mRNA levels. In contrast, the protein levels of VEGF were not changed, which suggests the activation of additional regulatory mechanisms of VEGF protein expression to ensure proper kidney development. In conclusion, Cd exposure decreases HIF-1-binding activity, posing a risk on renal fetal development.
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Liu X, Zhang W, Wu Z, Yang Y, Kang YJ. Copper levels affect targeting of hypoxia-inducible factor 1α to the promoters of hypoxia-regulated genes. J Biol Chem 2018; 293:14669-14677. [PMID: 30082314 DOI: 10.1074/jbc.ra118.001764] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 07/12/2018] [Indexed: 02/05/2023] Open
Abstract
Hypoxia-inducible factor 1α (HIF-1α) is a transcription factor that regulates cellular responses to hypoxia. It controls the expression of both BCL2/adenovirus E1B 19-kDa protein-interacting protein 3 (BNIP3) and insulin-like growth factor 2 (IGF2). Previous studies have demonstrated that in hypoxia, copper is required for the expression of BNIP3 but not for that of IGF2 Here, using ChIP assays, computational analyses, luciferase reporter assays, and real-time quantitative RT-PCR, we sought to better understand how copper regulates the differential target gene selectivity of HIF-1α. Human umbilical vein endothelial cells (HUVECs) were exposed to CoCl2 or hypoxia conditions to increase HIF-1α accumulation. The binding of HIF-1α to hypoxia-responsive element (HRE) sites in the BNIP3 or IGF2 gene promoter in high- or low-copper conditions was examined. Our analyses revealed three and two potential HRE sites in the BNIP3 and IGF2 promoters, respectively. We identified that HRE (-412/-404) in the BNIP3 promoter and HRE (-354/-347) in the IGF2 promoter are the critical binding sites of HIF-1α. Tetraethelenepentamine (TEPA)-mediated reduction in copper concentration did not affect hypoxia- or CoCl2-induced HIF-1α accumulation. However, the copper reduction did suppress the binding of HIF-1α to the HRE (-412/-404) in BNIP3 but not the binding of HIF-1α to the HRE (-354/-347) in IGF2 In summary, our findings uncovered the mechanistic basis for differential HIF-1α-mediated regulation of BNIP3 and IGF2, indicating that copper regulates target gene selectivity of HIF-1α at least in part by affecting HIF-1α binding to its cognate HRE in the promoters of these two genes.
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Affiliation(s)
- Xiaojuan Liu
- From the Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Wenjing Zhang
- From the Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Zhijuan Wu
- From the Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Yutao Yang
- From the Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
| | - Y James Kang
- From the Regenerative Medicine Research Center, Sichuan University West China Hospital, Chengdu, Sichuan 610041, China
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99
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Duan Y, He Q, Yue K, Si H, Wang J, Zhou X, Wang X. Hypoxia induced Bcl-2/Twist1 complex promotes tumor cell invasion in oral squamous cell carcinoma. Oncotarget 2018; 8:7729-7739. [PMID: 28032603 PMCID: PMC5352356 DOI: 10.18632/oncotarget.13890] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 12/05/2016] [Indexed: 12/15/2022] Open
Abstract
Bcl-2 and Twist1 can be coactivated by hypoxia in hepatocellular carcinoma to promote tumor cell metastasis and vasculogenic mimicry, but their function in oral squamous cell carcinoma (OSCC) remains undefined. We employed a cohort of 82 cases of OSCC samples to examine the coexpression of Bcl-2 and Twist1 by immunohistochemistry and demonstrate the interaction between Bcl-2 and Twist1 by coimmunoprecipitation. Bcl-2 and Twist1 overexpression was associated with a poor pathological grade and tumor prognosis, and the two factors functions as a complex. Knocking down Bcl-2/Twist1 inhibited cell migration, decreased cell invasion and inversed cell epithelial-mesenchymal transition (EMT) procession. An animal model derived from the Tca8113 cell line was used to further validate the role of Bcl-2/Twist1 depletion in suppressing tumor EMT and growth. In conclusion, Bcl-2/Twist1 complex can be treated as a potential therapeutic target for OSCC.
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Affiliation(s)
- Yuansheng Duan
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
| | - Qinghua He
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
| | - Kai Yue
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
| | - Haishan Si
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
| | - Jiaxin Wang
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
| | - Xuan Zhou
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
| | - Xudong Wang
- Department of Maxillofacial and E.N.T Oncology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China.,National Clinical Research Center for Cancer, Key Laboratory of Cancer Preventionand Therapy, Tianjin 300060, China
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100
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Evaluation of promoting effect of a novel Cu-bearing metal stent on endothelialization process from in vitro and in vivo studies. Sci Rep 2017; 7:17394. [PMID: 29234061 PMCID: PMC5727161 DOI: 10.1038/s41598-017-17737-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 11/29/2017] [Indexed: 11/28/2022] Open
Abstract
Drug eluting stents (DES) have been extensively applied nowadays and reduce the incidence of in-stent restenosis (ISR) greatly as compared with bare metal stents (BMS). However, the development of DES is hindered by the risk of late stent thrombosis (LST) due to delayed re-endothelialization, while endothelialization is an important process related to ISR and LST after implantation. 316L is a traditional stent material without bioactivity and have a high risk of ISR. Cu is recognized for angiogenesis stimulation in these years. Hence a copper bearing 316L stainless steel (316L-Cu) was prepared and evaluated about its effect on endothelialization in this paper. Compared with traditional 316L, it was proved that 316L-Cu increased the proliferation of co-cultured human umbilical vein endothelial cells (HUVECs) at first day. Moreover, HUVECs stretched better on the surface of 316L-Cu. It also improved the expression of angiogenesis related genes and tube formation ability in vitro. 316L-Cu-BMS, DES and 316L-BMS were implanted in swine to evaluate the re-endothelialization ability in vivo. And 316L-Cu-BMS showed the best effect on endothelialization with good biosafety. Consequently, 316L-Cu is a kind of promising BMS material for coronary field.
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