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Nabatilan A, Thomas Morgan M, Netzer S, Fahrni CJ. Selective removal of copper from complex biological media with an agarose-immobilized high-affinity PSP ligand. J Biol Inorg Chem 2024; 29:531-540. [PMID: 39066798 DOI: 10.1007/s00775-024-02065-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Accepted: 06/20/2024] [Indexed: 07/30/2024]
Abstract
The elucidation of metal-dependent biological processes requires selective reagents for manipulating metal ion levels within biological solutions such as growth media or cell lysates. To this end, we immobilized a phosphine sulfide-stabilized phosphine (PSP) ligand on agarose to create a resin for the selective removal of copper from chemically complex biological media through simple filtration or centrifugation. Comprised of a conformationally preorganized phenylene-bridged backbone, the PSP-ligand binds Cu(I) with a 1:1 stoichiometry and exhibits a pH-independent Cu(I) dissociation constant in the low zeptomolar range. Neither Zn(II), Fe(II), nor Mn(II) interact with the ligand at millimolar concentrations, thus offering a much-improved selectivity towards copper over other commonly employed solid-supported chelators such as Chelex 100. As revealed by X-ray fluorescence elemental analysis, the immobilized chelator effectively removes copper from cell culture growth media and cell lysate isolated from mouse fibroblasts. In addition to preparing copper-depleted media or cell lysates for biological studies, PSP-immobilized ligands might prove equally useful for applications in radiochemistry, materials science, and environmental science.
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Affiliation(s)
- Arielle Nabatilan
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - M Thomas Morgan
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Sara Netzer
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Christoph J Fahrni
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA.
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2
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Han J, Luo J, Wang C, Kapilevich L, Zhang XA. Roles and mechanisms of copper homeostasis and cuproptosis in osteoarticular diseases. Biomed Pharmacother 2024; 174:116570. [PMID: 38599063 DOI: 10.1016/j.biopha.2024.116570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/12/2024] Open
Abstract
Copper is an essential trace element in the human body that is extensively distributed throughout various tissues. The appropriate level of copper is crucial to maintaining the life activities of the human body, and the excess and deficiency of copper can lead to various diseases. The copper levels in the human body are regulated by copper homeostasis, which maintains appropriate levels of copper in tissues and cells by controlling its absorption, transport, and storage. Cuproptosis is a distinct form of cell death induced by the excessive accumulation of intracellular copper. Copper homeostasis and cuproptosis has recently elicited increased attention in the realm of human health. Cuproptosis has emerged as a promising avenue for cancer therapy. Studies concerning osteoarticular diseases have elucidated the intricate interplay among copper homeostasis, cuproptosis, and the onset of osteoarticular diseases. Copper dysregulation and cuproptosis cause abnormal bone and cartilage metabolism, affecting related cells. This phenomenon assumes a critical role in the pathophysiological processes underpinning various osteoarticular diseases, with implications for inflammatory and immune responses. While early Cu-modulating agents have shown promise in clinical settings, additional research and advancements are warranted to enhance their efficacy. In this review, we summarize the effects and potential mechanisms of copper homeostasis and cuproptosis on bone and cartilage, as well as their regulatory roles in the pathological mechanism of osteoarticular diseases (e.g., osteosarcoma (OS), osteoarthritis (OA), and rheumatoid arthritis (RA)). We also discuss the clinical-application prospects of copper-targeting strategy, which may provide new ideas for the diagnosis and treatment of osteoarticular diseases.
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Affiliation(s)
- Juanjuan Han
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China
| | - Jiayi Luo
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China
| | - Cuijing Wang
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China
| | - Leonid Kapilevich
- Faculty of Physical Education, Tomsk State University, Tomsk 634050, Russia
| | - Xin-An Zhang
- College of Exercise and Health, Shenyang Sport University, Shenyang 110100, China.
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3
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Di X, Pei Z, Pei Y, James TD. Tumor microenvironment-oriented MOFs for chemodynamic therapy. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Yu J, Bacsa J, Fahrni CJ. Conformationally Preorganized High-Affinity Ligands for Copper Biology with Hinged and Rigid Thiophene Backbones. Inorg Chem 2023; 62:1287-1296. [PMID: 36661323 PMCID: PMC10118051 DOI: 10.1021/acs.inorgchem.2c03524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Copper-selective ligands are essential tools for probing the affinity of cuproproteins or manipulating the cellular copper availability. They also harbor significant potential as antiangiogenic agents in cancer therapy or as therapeutics to combat copper toxicity in Wilson's disease. To achieve the high Cu(I) affinities required for competing effectively with cellular cuproproteins, we recently devised a ligand design based on phosphine-sulfide-stabilized phosphine (PSP) donor motifs. Building on this design strategy, we integrated two PSP donors within preorganized ligand architectures composed of either a hinged bithiophene backbone (bithipPS) or a single rigid thiophene bridge (thipPS). Extensive characterization based on X-ray crystal structures, solution NMR data, spectrophotometric titrations, and electrochemical studies established that bithipPS adapts well to the coordination preferences of Cu(I) to form a discrete air-stable mononuclear Cu(I) complex with a dissociation constant of 4 zM. In contrast, the wider bite angle of thipPS introduces some strain upon Cu(I) coordination to yield an almost 10-fold lower affinity with a Kd of 35 zM. As revealed by ICP-MS and two-photon excitation microscopy studies with the Cu(I)-selective fluorescent probe crisp-17, both ligands are effective at removing cellular copper from live mouse fibroblasts with rapid kinetics. Altogether, the stability and redox properties of PSP-ligand-Cu(I) complexes can be effectively tuned by judicious balancing of their geometrical preorganization and conformational flexibility.
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Affiliation(s)
- Jiyao Yu
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
| | - John Bacsa
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
- X-ray Crystallography Center, Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Christoph J. Fahrni
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
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5
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Wang L, Li Y, Wang Y, Li J, Sun Y, Chen J, Wang Z. Identification of cuproptosis-related lncRNAs for prognosis and immunotherapy in glioma. J Cell Mol Med 2022; 26:5820-5831. [PMID: 36317420 PMCID: PMC9716210 DOI: 10.1111/jcmm.17603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/15/2022] [Accepted: 10/05/2022] [Indexed: 12/04/2022] Open
Abstract
Glioma is a highly invasive primary brain tumour, making it challenging to accurately predict prognosis for glioma patients. Cuproptosis is a recently discovered cell death attracting significant attention in the tumour field. Whether cuproptosis-related genes have prognostic predictive value has not been clarified. In this study, uni-/multi-variate Cox and Lasso regression analyses were applied to construct a risk model based on cuproptosis-related lncRNAs using TCGA and CGGA cohorts. A nomogram was constructed to quantify individual risk, including clinical and genic characteristics and risk. GO and KEGG analyses were used to define functional enrichment of DEGs. Tumour mutation burden (TMB) and immune checkpoint analyses were performed to evaluate potential responses to ICI therapy. Ten prognostic lncRNAs were obtained from Cox regression. Based on the median risk score, patients were divided into high- and low-risk groups. Either for grade 2-3 or for grade 4, glioma patients with high-risk exhibited significant poorer prognoses. The risk was an independent risk factor associated with overall survival. The high-risk group was functionally associated with immune responses and cancer-related pathways. The high-risk group was associated with higher TMB scores. The expression levels of many immune checkpoints in the high-risk group were significantly higher than those in the low-risk group. Differentiated immune pathways were primarily enriched in the IFN response, immune checkpoint and T-cell co-stimulation pathways. In conclusion, we established a risk model based on cuproptosis-related lncRNAs showing excellent prognostic prediction ability but also indicating the immuno-microenvironment status of glioma.
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Affiliation(s)
- Lin Wang
- Department of NeurologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Yunqian Li
- Department of Neurosurgical OncologyThe First Hospital of Jilin UniversityChangchunChina
| | - Yubo Wang
- Department of Neurosurgical OncologyThe First Hospital of Jilin UniversityChangchunChina
| | - Jia Li
- Department of NeurologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Yajuan Sun
- Department of NeurologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Jiajun Chen
- Department of NeurologyChina‐Japan Union Hospital of Jilin UniversityChangchunChina
| | - Ziqian Wang
- Department of Neurosurgical OncologyThe First Hospital of Jilin UniversityChangchunChina
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Heuberger DM, Wolint P, Jang JH, Itani S, Jungraithmayr W, Waschkies CF, Meier-Bürgisser G, Andreoli S, Spanaus K, Schuepbach RA, Calcagni M, Fahrni CJ, Buschmann J. High-Affinity Cu(I)-Chelator with Potential Anti-Tumorigenic Action-A Proof-of-Principle Experimental Study of Human H460 Tumors in the CAM Assay. Cancers (Basel) 2022; 14:cancers14205122. [PMID: 36291910 PMCID: PMC9600560 DOI: 10.3390/cancers14205122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 11/21/2022] Open
Abstract
Human lung cancer ranks among the most frequently treated cancers worldwide. As copper appears critical to angiogenesis and tumor growth, selective removal of copper represents a promising strategy to restrict tumor growth. To this end, we explored the activity of the novel high-affinity membrane-permeant Cu(I) chelator PSP-2 featuring a low-zeptomolar dissociation constant. Using H460 human lung cancer cells, we generated small tumors on the chorioallantoic membrane of the chicken embryo (CAM assay) and studied the effects of topical PSP-2 application on their weight and vessel density after one week. We observed a significant angiosuppression along with a marked decrease in tumor weight under PSP-2 application compared to controls. Moreover, PSP-2 exposure resulted in lower ki67+ cell numbers at a low dose but increased cell count under a high dose. Moreover, HIF-1α+ cells were significantly reduced with low-dose PSP-2 exposure compared to high-dose and control. The total copper content was considerably lower in PSP-2 treated tumors, although statistically not significant. Altogether, PSP-2 shows promising potential as an anti-cancer drug. Nevertheless, further animal experiments and application to different tumor types are mandatory to support these initial findings, paving the way toward clinical trials.
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Affiliation(s)
- Dorothea M. Heuberger
- Institute of Intensive Care Medicine, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Petra Wolint
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Jae-Hwi Jang
- Division of Thoracic Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Saria Itani
- Division of Thoracic Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Wolfgang Jungraithmayr
- Division of Thoracic Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
- Department of Thoracic Surgery, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany
| | - Conny F. Waschkies
- Division of Radiation Protection, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Gabriella Meier-Bürgisser
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Stefano Andreoli
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Katharina Spanaus
- Clinical Chemistry, University Hospital Zurich, 8001 Zurich, Switzerland
| | - Reto A. Schuepbach
- Institute of Intensive Care Medicine, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Maurizio Calcagni
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
| | - Christoph J. Fahrni
- School of Chemistry and Biochemistry and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA 30332-0400, USA
| | - Johanna Buschmann
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Sternwartstrasse 14, 8091 Zurich, Switzerland
- Correspondence: ; Tel.: +41-442559895
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Jiang Y, Huo Z, Qi X, Zuo T, Wu Z. Copper-induced tumor cell death mechanisms and antitumor theragnostic applications of copper complexes. Nanomedicine (Lond) 2022; 17:303-324. [PMID: 35060391 DOI: 10.2217/nnm-2021-0374] [Citation(s) in RCA: 120] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Recent studies found that unbalanced copper homeostasis affect tumor growth, causing irreversible damage. Copper can induce multiple forms of cell death, including apoptosis and autophagy, through various mechanisms, including reactive oxygen species accumulation, proteasome inhibition, and antiangiogenesis. Hence, copper in vivo has attracted tremendous attention and is in the research spotlight in the field of tumor treatment. This review first highlights three typical forms of copper's antitumor mechanisms. Then, the development of diverse biomaterials and nanotechnology allowing copper to be fabricated into diverse structures to realize its theragnostic action is discussed. Novel copper complexes and their clinical applications are subsequently described.
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Affiliation(s)
- Yicheng Jiang
- Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Zhiyi Huo
- Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Xiaole Qi
- Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing, 210009, PR China.,Industrial Technology Innovation Platform, Zhejiang Center for Safety Study of Drug Substances, Hangzhou, 310018, China
| | - Tongmei Zuo
- Industrial Technology Innovation Platform, Zhejiang Center for Safety Study of Drug Substances, Hangzhou, 310018, China
| | - Zhenghong Wu
- Key Laboratory of Modern Chinese Medicines, China Pharmaceutical University, Nanjing, 210009, PR China
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8
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Li J, Guo W, Yu F, Liu L, Wang X, Li L, Fang B, Xia L. Low-intensity pulsed ultrasound promotes angiogenesis via the AKT pathway and DNA methylation in human umbilical vein endothelial cells. ULTRASONICS 2022; 118:106561. [PMID: 34500338 DOI: 10.1016/j.ultras.2021.106561] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
Angiogenesis involves the activation of endothelial cells (ECs). Low-intensity pulsed ultrasound (LIPUS), which delivers ultrasound waves at a low intensity, can induce the angiogenic potential of ECs. However, the underlying cellular mechanisms remain to be elucidated. In this study, the LIPUS parameters were 1.5 MHz pulsed frequency, 200 us pulse duration, 1.0 kHz repetition rate, and 30 mW/cm2 energy intensity. First, we evaluated the effects of LIPUS on the proliferation and angiogenic differentiation of the EC line EA.hy926. The results showed that LIPUS could induce cell proliferation, promote migration, and increase mRNA level inKDR and CD144.Also, the mRNA level and secretion of VEGF were enhanced. We then investigated the role of the AKT signaling pathway in this process. We observed that the expression of p-AKT was upregulated which means that the AKT signaling pathway could be activated by LIPUS, while inhibitor LY294002 of the AKT signaling pathway effectively blocked LIPUS-induced angiogenesis. Finally,we applied confocal Raman microscopy to track biomolecular changes in cells after LIPUS treatment. Spectral analysis showed DNA methylation changes. An Infinium Methylation assay suggested that399 sites were significantly different. After KEGG enrichment analysis, we found seven genes (IRS1, GNG7, COL4A1, FOXO3, COL4A2, CDK4 and EGF) which were closely related to AKT signaling pathway. We verified that AKT signaling pathway inhibition partially blocked LIPUS-induced DNA methylation changes. Ourstudy demonstrated that LIPUS couldpromote the proliferation and angiogenic differentiation of ECs via the AKT signaling pathway. LIPUS could also alter DNA methylation of ECs via the activation of AKT signal.
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Affiliation(s)
- JiaYi Li
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, China
| | - WeiMing Guo
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, China
| | - Fei Yu
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai 200025, China
| | - Lu Liu
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China
| | - XiaoTing Wang
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China
| | - LvYuan Li
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China
| | - Bing Fang
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China.
| | - Lunguo Xia
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 500 Qu Xi Road, Shanghai 200011, China.
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Kennedy DC, Coen B, Wheatley AM, McCullagh KJA. Microvascular Experimentation in the Chick Chorioallantoic Membrane as a Model for Screening Angiogenic Agents including from Gene-Modified Cells. Int J Mol Sci 2021; 23:452. [PMID: 35008876 PMCID: PMC8745510 DOI: 10.3390/ijms23010452] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/29/2021] [Accepted: 12/29/2021] [Indexed: 02/07/2023] Open
Abstract
The chick chorioallantoic membrane (CAM) assay model of angiogenesis has been highlighted as a relatively quick, low cost and effective model for the study of pro-angiogenic and anti-angiogenic factors. The chick CAM is a highly vascularised extraembryonic membrane which functions for gas exchange, nutrient exchange and waste removal for the growing chick embryo. It is beneficial as it can function as a treatment screening tool, which bridges the gap between cell based in vitro studies and in vivo animal experimentation. In this review, we explore the benefits and drawbacks of the CAM assay to study microcirculation, by the investigation of each distinct stage of the CAM assay procedure, including cultivation techniques, treatment applications and methods of determining an angiogenic response using this assay. We detail the angiogenic effect of treatments, including drugs, metabolites, genes and cells used in conjunction with the CAM assay, while also highlighting the testing of genetically modified cells. We also present a detailed exploration of the advantages and limitations of different CAM analysis techniques, including visual assessment, histological and molecular analysis along with vascular casting methods and live blood flow observations.
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Affiliation(s)
| | | | - Antony M. Wheatley
- Department of Physiology, School of Medicine, Human Biology Building, National University of Ireland, H91 W5P7 Galway, Ireland; (D.C.K.); (B.C.)
| | - Karl J. A. McCullagh
- Department of Physiology, School of Medicine, Human Biology Building, National University of Ireland, H91 W5P7 Galway, Ireland; (D.C.K.); (B.C.)
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Vijayan V, Sreekumar S, Singh F, Srivatsan KV, Lakra R, Sai KP, Kiran MS. Nanotized praseodymium oxide collagen 3-D pro-vasculogenic biomatrix for soft tissue engineering. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 33:102364. [PMID: 33515752 DOI: 10.1016/j.nano.2021.102364] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 12/12/2022]
Abstract
The current study explores development of highly vascularizable biomatrix scaffold containing rare-earth metal praseodymium oxide nanoadditives for angiogenic and soft tissue regenerative applications. The therapeutic potential of praseodymium oxide nanoparticles rendered excellent endothelial cell differentiation for inducing pro angiogenic microenvironment by eliciting VE-Cadherin expression in the biomatrix scaffold. The nanoparticles were incorporated into bio-macromolecule collagen which aided in stabilization of collagen by maintaining the structural integrity of collagen and showed less susceptibility towards protease enzymes, high cyto-compatibility and high hemo-compatibility. The scaffold provided 3-dimensional micro-environments for the proliferation of endothelial cells and fibroblast cells promoting the wound healing process in an orchestrated fashion. Biological signal modulatory property of rare earth metal is the unexplored domains that can essentially bring significant therapeutic advancement in engineering advanced biological materials. This study opens potential use of nano-scaled rare earth metals in biomaterial application for tissue regeneration by modulating the pro-angiogenesis and anti-proteolysis properties.
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Affiliation(s)
- Vinu Vijayan
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India; University of Madras, Chennai, Tamil Nadu, India
| | - Sreelekshmi Sreekumar
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India; Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Fathe Singh
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India; Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Kunnavakkam Vinjimur Srivatsan
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Rachita Lakra
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Korrapati Purna Sai
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India; Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India
| | - Manikantan Syamala Kiran
- Biological Materials Laboratory, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India; University of Madras, Chennai, Tamil Nadu, India; Academy of Scientific and Innovative Research, Council of Scientific and Industrial Research-Central Leather Research Institute, Chennai, Tamil Nadu, India.
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Rodrigues JAO, Oliveira Neto JGD, da Silva de Barros AO, Ayala AP, Santos-Oliveira R, de Menezes AS, de Sousa FF. Copper(II):phenanthroline complexes with l-asparagine and l-methionine: Synthesis, crystal structure and in-vitro cytotoxic effects on prostate, breast and melanoma cancer cells. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114807] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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