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Fragelli BDL, Assis M, Rodolpho JMA, Godoy KF, Líbero LO, Anibal FF, Longo E. Modulation of cell death mechanisms via α-Ag 2WO 4 morphology-dependent factors. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 257:112947. [PMID: 38851043 DOI: 10.1016/j.jphotobiol.2024.112947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/09/2024] [Accepted: 05/27/2024] [Indexed: 06/10/2024]
Abstract
The cytotoxic of α-Ag2WO4 synthesized in different morphologies (cuboidal (AW-C), hexagonal rod-like (AW-HRL) and nanometric rod-like (AW-NRL) was analyzed to understand the impact of morphological modulation on the toxicity of 3 T3 cell lines in the dark and when photoactivated by visible light. Pathways of toxicity were examined, such as parameters and electrostatic interaction, uptake, ion release and ROS production. Cytotoxicity was observed for all samples after reaching concentrations exceeding 7.8 μg/mL. Uptake tests demonstrated that the samples were not internalized by cells, likely due to their negative surface charge. AW-NRL exhibited autophagy in the absence of light and during photoactivation, primarily attributed to its ability to generate singlet oxygen. Analyzing intercellular ROS and RNS production, AW-HRL induced an increase in NO through exposure to photo-generated hydroxyl radicals, while AW-NRL showed increases only at non-photoactivated concentrations and AW-C did not exhibit increases. Interestingly, in the dark, these cells showed a low propensity for apoptosis, with late apoptosis and necrosis being more pronounced. When photoactivated, this behavior changed, revealing predominantly apoptotic and late apoptotic cell death. There is a need for an understanding of how morphology can alter the biological properties of α-Ag2WO4 to predict and optimize its effects on cellular responses.
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Affiliation(s)
- Bruna D L Fragelli
- Center for Development of Functional Materials, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil.
| | - Marcelo Assis
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), 12071 Castelló, Spain.
| | - Joice M A Rodolpho
- Laboratory of Inflammation and Infectious Diseases, Department of Morphology and Pathology, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Krissia F Godoy
- Laboratory of Inflammation and Infectious Diseases, Department of Morphology and Pathology, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Laura O Líbero
- Center for Development of Functional Materials, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Fernanda F Anibal
- Laboratory of Inflammation and Infectious Diseases, Department of Morphology and Pathology, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Elson Longo
- Center for Development of Functional Materials, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
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2
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Wiciński M, Fajkiel-Madajczyk A, Kurant Z, Gajewska S, Kurant D, Kurant M, Sousak M. Can Asiatic Acid from Centella asiatica Be a Potential Remedy in Cancer Therapy?-A Review. Cancers (Basel) 2024; 16:1317. [PMID: 38610995 PMCID: PMC11011005 DOI: 10.3390/cancers16071317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Centella asiatica has been recognized for centuries in Eastern medicine for its pharmacological properties. Due to the increasing prevalence of oncological diseases worldwide, natural substances that could qualify as anticancer therapeutics are becoming increasingly important subjects of research. This review aims to find an innovative use for asiatic acid (AA) in the treatment or support of cancer therapy. It has been demonstrated that AA takes part in inhibiting phosphorylation, inducing cell death, and reducing tumor growth and metastasis by influencing important signaling pathways, such as PI3K, Akt, mTOR, p70S6K, and STAT3, in cancer cells. It is also worth mentioning the high importance of asiatic acid in reducing the expression of markers such as N-cadherin, β-catenin, claudin-1, and vimentin. Some studies have indicated the potential of asiatic acid to induce autophagy in cancer cells through changes in the levels of specific proteins such as LC3 and p62. It can also act as an anti-tumor immunotherapeutic agent, thanks to its inductive effect on Smad7 in combination with naringenin (an Smad3 inhibitor). It seems that asiatic acid may be a potential anticancer drug or form of adjunctive therapy. Further studies should take into account safety and toxicity issues, as well as limitations related to the pharmacokinetics of AA and its low oral bioavailability.
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Affiliation(s)
- Michał Wiciński
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (M.W.); (Z.K.); (D.K.)
| | - Anna Fajkiel-Madajczyk
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (M.W.); (Z.K.); (D.K.)
| | - Zuzanna Kurant
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (M.W.); (Z.K.); (D.K.)
| | - Sandra Gajewska
- Department of Medicinal Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Dr. A. Jurasza 2, 85-089 Bydgoszcz, Poland;
| | - Dominik Kurant
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, M. Curie Skłodowskiej 9, 85-094 Bydgoszcz, Poland; (M.W.); (Z.K.); (D.K.)
| | - Marcin Kurant
- Department of Urology, District Hospital, 10 Lesna Street, 89-600 Chojnice, Poland;
| | - Masaoud Sousak
- Department of General Surgery, Paluckie Health Center Sp. o.o., Szpitalna 30, 88-400 Żnin, Poland;
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Rahman KMM, Bist G, Kumbham S, Foster BA, Woo S, You Y. Mitochondrial targeting improves the selectivity of singlet-oxygen cleavable prodrugs in NMIBC treatment. Photochem Photobiol 2024. [PMID: 38433310 DOI: 10.1111/php.13928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/24/2024] [Accepted: 02/13/2024] [Indexed: 03/05/2024]
Abstract
Mitochondria play an essential role in cancer treatment by providing apoptotic signals. Hexyl aminolevulinate, an FDA-approved diagnosis for non-muscle invasive bladder cancer, induces the production of protoporphyrin IX (PpIX) preferentially by mitochondria in cancer cells. Photosensitizer PpIX upon illumination can release active chemotherapy drugs from singlet oxygen-activatable prodrugs. Prodrugs placed close enough to PpIX formed in mitochondria can improve the antitumor efficiency of PpIX-PDT. The preferred uptake of prodrugs by cancer cells and tumors can further enhance the selective damage of cancer cells over non-cancer cells and surrounding normal tissues. Mitochondriotropic prodrugs of anticancer drugs, such as paclitaxel and SN-38, were synthesized using rhodamine, a mitochondrial-targeting moiety. In vitro, the mitochondrial targeting helped achieve preferential cellular uptake in cancer cells. In RT112 cells (human bladder cancer cells), intracellular prodrug concentrations were 2-3 times higher than the intracellular prodrug concentrations in BdEC cells (human bladder epithelial cells), after 2 h incubation. In an orthotopic rat bladder tumor model, mitochondria-targeted prodrugs achieved as much as 34 times higher prodrug diffusion in the tumor area compared to the nontumor bladder area. Overall, mitochondria targeting made prodrugs more effective in targeting cancer cells and tumors over non-tumor areas, thereby reducing nonspecific toxicity.
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Affiliation(s)
- Kazi Md Mahabubur Rahman
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York, USA
| | - Ganesh Bist
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York, USA
| | - Soniya Kumbham
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York, USA
| | - Barbara A Foster
- Department of Pharmacology & Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, New York, USA
| | - Sukyung Woo
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York, USA
| | - Youngjae You
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, New York, USA
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Nikolaeva V, Kamalov M, Abdullin TI, Salakhieva D, Chasov V, Rogov A, Zoughaib M. Evaluation of GHK peptide-heparin interactions in multifunctional liposomal covering. J Liposome Res 2024; 34:18-30. [PMID: 37144381 DOI: 10.1080/08982104.2023.2206894] [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: 11/26/2022] [Accepted: 01/12/2023] [Indexed: 05/06/2023]
Abstract
Small biospecific peptides with defined chemical structure and cellular responses are promising alternatives to full-length therapeutic proteins. Identification of these peptides solely or in combination with other bioactive factors and determination of their targets are of substantial interest in current drug delivery research. This study is aimed at the development of new liposomal formulations of ECM-derived GHK peptide known for its multiple regeneration-related activities but poorly recognized cellular targets. In situ association of membranotropic GHK derivative with unilamellar liposomes was performed to prepare GHK-modified liposomes with defined properties. According to DLS, the GHK component on the liposomal surface interacted with heparin in a specific manner compared to other polysaccharides and RGD counterpart, whereas ITC analysis of such interactions was complicated. The results provide a useful tool for screening of bio-interactions of synthetic peptide-presenting liposomes by the DLS technique. They were also employed to produce a multi-functional nanosized GHK-heparin covering for liposomes. The resulting composite liposomes possessed low size dispersity, increased anionic charge, and mechanical rigidity. The heparin component significantly promoted the accumulation of GHK-modified liposomes in 3T3 fibroblasts so that the composite liposomes exhibited the highest cell-penetrating activity. Furthermore, the latter formulation stimulated cell proliferation and strongly inhibited ROS production and GSH depletion under oxidative stress conditions. Together, the results support that cell-surface glycosaminoglycans can be involved in GHK-mediated liposomal delivery, which can be further greatly enhanced by association with heparin. The composite liposomes with GHK-heparin covering can be considered as an advanced GHK-based formulation for therapeutic and cosmeceutical applications.
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Affiliation(s)
- Viktoriia Nikolaeva
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
- Scientific and Educational Center of Pharmaceutics, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Marat Kamalov
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
- Scientific and Educational Center of Pharmaceutics, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Timur I Abdullin
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
- Scientific and Educational Center of Pharmaceutics, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Diana Salakhieva
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
- Scientific and Educational Center of Pharmaceutics, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Vitaly Chasov
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Alexey Rogov
- Interdisciplinary Center for Analytical Microscopy, Kazan (Volga Region) Federal University, Kazan, Russia
| | - Mohamed Zoughaib
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, Russia
- Scientific and Educational Center of Pharmaceutics, Kazan (Volga Region) Federal University, Kazan, Russia
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Kshersagar J, Pulgam L, Damle MN, Tardalkar K, Sharma R, Joshi MG. Transplantation of Human Placenta Derived Mitochondria Promotes Cell Communication in Endometrium in a Murine Model of Disturbed Endometrium. Stem Cell Rev Rep 2023; 19:1384-1401. [PMID: 36856954 DOI: 10.1007/s12015-023-10516-2] [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] [Accepted: 02/05/2023] [Indexed: 03/02/2023]
Abstract
OBJECTIVES Herein, we investigated the regenerative potential of functional mitochondria to restore endometrial injury. METHODS The endometrium was disturbed with an intrauterine injection of 95% ethanol. Regeneration of the disturbed endometrium was achieved by transplantation of human placenta derived mitochondria followed by thrombin activated platelet rich plasma (hMTx). The transplantation method provided a biomimetic gel layer that stabilized and supported the functionality of the transplanted mitochondria to flourish regeneration of the disturbed endometrium. The presence of engrafted Rhodamine B labelled mitochondria was quantified at 12, 24, 48, and 72 h after transplantation. RESULTS Detection of human-specific mitochondria mRNA in recipient rat uterus showed significant up-regulation of MT ATP-8, MT COX-1, MT COX -3, MT COX -2, MT ATP-6 (p = 0.009) in the hMTx treated group compared to the disturbed endometrium group. The hMTx group demonstrated showed regeneration through increased expressions of α-SMA, CK-18, CK-19, Connexin-40, E Cadherin, Claudin-1, Zona Occludin as compared with disturbed endometrium group. Experimental hMTx endometrial cells had significantly higher values of activities of NADH, NADPH, Cytochrome B5, Cytochrome P450, Complex I, Complex II, Complex III, Complex IV compared with disturbed endometrium indicating the regeneration of damaged endometrial cells at 72 h. CONCLUSIONS Intrauterine hMTx was accounted to improve endometrial junction protein thus regeneration in the disturbed endometrium. Our Data provide the first evidence that hMTx promotes endometrial regeneration in the disturbed endometrium, paving the way for the development of a novel approach to human endometrial regeneration.
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Affiliation(s)
- Jeevitaa Kshersagar
- Department of Stem Cells & Regenerative Medicine, D Y Patil Education Society (Deemed to Be University), E 869, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, 416006, MS, India
| | - Lavanya Pulgam
- Department of Stem Cells & Regenerative Medicine, D Y Patil Education Society (Deemed to Be University), E 869, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, 416006, MS, India
| | - Mrunal N Damle
- Department of Stem Cells & Regenerative Medicine, D Y Patil Education Society (Deemed to Be University), E 869, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, 416006, MS, India
- Stem Plus Biotech, SMK Commercial Complex, C/S No. 1317/2, Near Shivaji Maharaj Putla, Bus Stand Road, Gaon Bhag, Sangli, MS, 416416, India
| | - Kishore Tardalkar
- Department of Stem Cells & Regenerative Medicine, D Y Patil Education Society (Deemed to Be University), E 869, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, 416006, MS, India
| | - Rakesh Sharma
- Department of Obstetrics and Gynaecology, Dr. D Y Patil Medical College, Hospital and Research Institute, 416003, Kadamwadi, Kolhapur, Maharashtra, India
| | - Meghnad G Joshi
- Department of Stem Cells & Regenerative Medicine, D Y Patil Education Society (Deemed to Be University), E 869, D. Y. Patil Vidyanagar, Kasba Bawda, Kolhapur, 416006, MS, India.
- Stem Plus Biotech, SMK Commercial Complex, C/S No. 1317/2, Near Shivaji Maharaj Putla, Bus Stand Road, Gaon Bhag, Sangli, MS, 416416, India.
- Central Research Laboratory, Dr. D Y Patil Medical College, Hospital and Research Institute, 4th Floor, Kadamwadi, Kolhapur, 416003, Maharashtra, India.
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Liang JP, He YM, Cui YL, Sun YN, He GS, Zhu ZG, Mao XL. Proteasomal inhibitors induce myeloma cell pyroptosis via the BAX/GSDME pathway. Acta Pharmacol Sin 2023; 44:1464-1474. [PMID: 36807412 PMCID: PMC10310844 DOI: 10.1038/s41401-023-01060-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/27/2023] [Indexed: 02/22/2023] Open
Abstract
Proteasomes are overexpressed in multiple myeloma (MM) and proteasomal inhibitors (PIs) have been widely used for the treatment of MM. PIs are reported to induce MM cell apoptosis but impair necroptosis. In the present study, we found that PIs MG132 and bortezomib induce MM cell pyroptosis, a novel type of cell death, in a GSDME-dependent manner. Lack of GSDME totally blocks PI-induced pyroptosis. Interestingly, we found that Caspase-3/6/7/9 are all involved in pyroptosis triggered by PIs because the specific inhibitor of each caspase ablates GSDME activation. PIs markedly reduce mitochondrial membrane potential. Moreover, PIs disrupt the interaction of Bcl-2 and BAX, induce cytochrome c release from mitochondria to cytosol and activate GSDME. Furthermore, we found that overexpression of an N-terminal portion of GSDME suffices to release cytochrome c from mitochondria and to activate Caspase-3/9, suggesting N-GSDME might penetrate the mitochondrial membrane. Consistent with Bcl-2 inhibition, BAX can induce MM cell pyroptosis in a GSDME-dependent manner. In accordance with these findings, inhibition of Bcl-2 synergizes with PIs to induce MM cell pyroptosis. Therefore, the present study indicates that PIs trigger MM cell pyroptosis via the mitochondrial BAX/GSDME pathway and provides a rationale for combined treatment of MM with Bcl-2 and proteasome inhibitors to increase therapeutic efficiency via induction of pyroptosis.
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Affiliation(s)
- Jing-Pei Liang
- Guangzhou Institute of Cardiovascular Diseases, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Diseases, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China
- Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yuan-Ming He
- Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yao-Li Cui
- Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yue-Ning Sun
- Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China
| | - Gui-Song He
- Department of Orthopaedics, the Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510260, China.
| | - Zhi-Gang Zhu
- Division of Hematology & Oncology, Department of Geriatrics, Guangzhou First People's Hospital, College of Medicine, South China University of Technology, Guangzhou, 510180, China.
| | - Xin-Liang Mao
- Guangzhou Institute of Cardiovascular Diseases, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Diseases, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, China.
- Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
- GMU-GIBH Joint School of Life Sciences, The Guangdong-Hong Kong-Macau Joint Laboratory for Cell Fate Regulation and Diseases, Guangzhou Medical University, Guangzhou, 511436, China.
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7
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Singh D, Regar R, Soppina P, Soppina V, Kanvah S. Imaging of mitochondria/lysosomes in live cells and C. elegans. Org Biomol Chem 2023; 21:2220-2231. [PMID: 36805145 DOI: 10.1039/d3ob00086a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Two rhodamine-phenothiazine conjugates, RP1 and RP2, were synthesized, and their photophysical properties, subcellular localization, and photocytotoxicity were investigated. We observed robust localization of RP1 in mitochondria and dual localization in mitochondria and lysosomes with RP2 in live cells. Live cell imaging with these probes allowed us to track the dynamics of mitochondria and lysosomes during ROS-induced mitochondrial damage and the subsequent lysosomal digestion of the damaged mitochondria. The fluorophores also demonstrated preferential accumulation in cancer cells compared to normal cells and had strong photo-cytotoxicity. However, no cytotoxicity was observed in the dark. The mitochondrial staining and light-induced ROS production were not limited to mammalian cell lines, but were also observed in the animal model C. elegans. The study demonstrated the potential applications of these probes in visualizing the mitochondria-lysosome cross-talk after ROS production and for photodynamic therapy.
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Affiliation(s)
- Deepmala Singh
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat-382055, India.
| | - Ramprasad Regar
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat-382055, India.
| | - Pushpanjali Soppina
- Department of Biological Engineering, Indian Institute of Technology Gandhinagar, Gujarat-382055, India. .,Department of Biotechnology and Bioinformatics, Sambalpur University, Sambalpur, Orissa 768019, India
| | - Virupakshi Soppina
- Department of Biological Engineering, Indian Institute of Technology Gandhinagar, Gujarat-382055, India.
| | - Sriram Kanvah
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gujarat-382055, India.
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Ley-Ngardigal S, Bertolin G. Approaches to monitor ATP levels in living cells: where do we stand? FEBS J 2022; 289:7940-7969. [PMID: 34437768 DOI: 10.1111/febs.16169] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/30/2021] [Accepted: 08/25/2021] [Indexed: 01/14/2023]
Abstract
ATP is the most universal and essential energy molecule in cells. This is due to its ability to store cellular energy in form of high-energy phosphate bonds, which are extremely stable and readily usable by the cell. This energy is key for a variety of biological functions such as cell growth and division, metabolism, and signaling, and for the turnover of biomolecules. Understanding how ATP is produced and hydrolyzed with a spatiotemporal resolution is necessary to understand its functions both in physiological and in pathological contexts. In this review, first we will describe the organization of the electron transport chain and ATP synthase, the main molecular motor for ATP production in mitochondria. Second, we will review the biochemical assays currently available to estimate ATP quantities in cells, and we will compare their readouts, strengths, and weaknesses. Finally, we will explore the palette of genetically encoded biosensors designed for microscopy-based approaches, and show how their spatiotemporal resolution opened up the possibility to follow ATP levels in living cells.
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Affiliation(s)
- Seyta Ley-Ngardigal
- CNRS, Univ Rennes, IGDR (Genetics and Development Institute of Rennes), Rennes, France.,LVMH Research Perfumes and Cosmetics, Saint-Jean-de-Braye, France
| | - Giulia Bertolin
- CNRS, Univ Rennes, IGDR (Genetics and Development Institute of Rennes), Rennes, France
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9
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Dutta T, Pal K, Koner AL. Intracellular Physical Properties with Small Organic Fluorescent Probes: Recent Advances and Future Perspectives. CHEM REC 2022; 22:e202200035. [PMID: 35801859 DOI: 10.1002/tcr.202200035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/22/2022] [Indexed: 11/09/2022]
Abstract
The intracellular physical parameters i. e., polarity, viscosity, fluidity, tension, potential, and temperature of a live cell are the hallmark of cellular health and have garnered immense interest over the past decade. In this context, small molecule organic fluorophores exhibit prominent useful properties including easy functionalizability, environmental sensitivity, biocompatibility, and fast yet efficient cellular uptakability which has made them a popular tool to understand intra-cellular micro-environmental properties. Throughout this discussion, we have outlined the basic design strategies of small molecules for specific organelle targeting and quantification of physical properties. The values of these parameters are indicative of cellular homeostasis and subtle alteration may be considered as the onset of disease. We believe this comprehensive review will facilitate the development of potential future probes for superior insight into the physical parameters that are yet to be quantified.
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Affiliation(s)
- Tanoy Dutta
- Bionanotechnology Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, INDIA (TD) (ALK
| | - Kaushik Pal
- Bionanotechnology Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, INDIA (TD) (ALK.,Department of Physics and Astronomy, Iowa State University, Ames, Iowa, 50011, USA
| | - Apurba Lal Koner
- Bionanotechnology Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, INDIA (TD) (ALK
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10
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Hu K, Cheng A, Zhou D, Luo Y, Zhang G. Lipid-Head-Polymer-Tail Chimeric Vesicles. Macromol Rapid Commun 2022; 43:e2200124. [PMID: 35803897 DOI: 10.1002/marc.202200124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/22/2022] [Indexed: 11/09/2022]
Abstract
Lipid nanovesicles (LNVs) and polymer nanovesicles (PNVs), also known as liposomes and polymersomes, are becoming increasingly vital in global health. However, the two major classes of nanovesicles both exhibit their own issues that significantly limit potential applications. Here, by covalently attaching a naturally occurring phosphate "lipid head" and a synthetic polylactide "polymer tail" via facile ring-opening polymerization on a 500-gram scale, a type of "chimeric" nanovesicles (CNVs) can be easily produced. Compared to LNVs, the reported CNVs exhibit reduced permeability for small and large molecules; on the other hand, the CNVs are less hydrophobic and exhibit enhanced tolerance toward proteins in buffer solutions without the need for hydrophilic polymeric corona such as poly(ethylene glycol), in contrast to conventional PNVs. The proof-of-concept in vitro delivery experiments using hydrophilic solutions of fluorescein-PEG, rhodamine-PEG, and anti-cancer drug doxorubicin demonstrate that these CNVs, as a structurally diverse class of nano-materials, are highly promising as alternative carriers for therapeutic molecules in translational nanomedicine. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Kan Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Aoyuan Cheng
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Dingcheng Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Guoqing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
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Hatano H, Meng F, Sakata M, Matsumoto A, Ishihara K, Miyahara Y, Goda T. Transepithelial delivery of insulin conjugated with phospholipid-mimicking polymers via biomembrane fusion-mediated transcellular pathways. Acta Biomater 2022; 140:674-685. [PMID: 34896268 DOI: 10.1016/j.actbio.2021.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 12/01/2021] [Accepted: 12/03/2021] [Indexed: 02/06/2023]
Abstract
Epithelial barriers that seal cell gaps by forming tight junctions to prevent the free permeation of nutrients, electrolytes, and drugs, are essential for maintaining homeostasis in multicellular organisms. The development of nanocarriers that can permeate epithelial tissues without compromising barrier function is key for establishing a safe and efficient drug delivery system (DDS). Previously, we have demonstrated that a water-soluble phospholipid-mimicking random copolymer, poly(2-methacryloyloxyethyl phosphorylcholine30-random-n‑butyl methacrylate70) (PMB30W), enters the cytoplasm of live cells by passive diffusion manners, without damaging the cell membranes. The internalization mechanism was confirmed to be amphiphilicity-induced membrane fusion. In the present study, we demonstrated energy-independent permeation of PMB30W through the model epithelial barriers of Madin-Darby canine kidney (MDCK) cell monolayers in vitro. The polymer penetrated epithelial MDCK monolayers via transcellular pathways without breaching the barrier functions. This was confirmed by our unique assay that can monitor the leakage of the proton as the smallest indicator across the epithelial barriers. Moreover, energy-independent transepithelial permeation was achieved when insulin was chemically conjugated with the phospholipid-mimicking nanocarrier. The bioactivity of insulin as a growth factor was found to be maintained even after translocation. These fundamental findings may aid the establishment of transepithelial DDS with advanced drug efficiency and safety. STATEMENT OF SIGNIFICANCE: A nanocarrier that can freely permeate epithelial tissues without compromising barrier function is key for successful DDS. Existing strategies mainly rely on paracellular transport associated with tight junction breakdown or transcellular transport via transporter recognition-mediated active uptake. These approaches raise concerns about efficiency and safety. In this study, we performed non-endocytic permeation of phospholipid-mimicking polymers through the model epithelial barriers in vitro. The polymer penetrated via transcytotic pathways without breaching the barriers of biomembrane and tight junction. Moreover, transepithelial permeation occurred when insulin was covalently attached to the nanocarrier. The bioactivity of insulin was maintained even after translocation. The biomimetic design of nanocarrier may realize safe and efficient transepithelial DDS.
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12
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Muljadi M, Cheng CM, Shen CJ. Development of a Tetrazolium-Derived Paper-Based Diagnostic Device as an Early, Alternative Bacteria Screening Tool. MICROMACHINES 2021; 13:44. [PMID: 35056209 PMCID: PMC8779278 DOI: 10.3390/mi13010044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/18/2021] [Accepted: 12/27/2021] [Indexed: 11/25/2022]
Abstract
(1) Background: The complexity, amount of time, and the large amount of resource required to perform gold-standard bacteria culture procedures makes it difficult to perform timely pathogenic analyses, especially in areas where such resources are not readily available. A paper-based biochemical analytical tool can potentially tackle problems economically in terms of time and convenience, potentially finding utility in applications where simple and timely detection of bacteria is necessary; (2) Methods: The utility of paper-based MTT-PMS strips was tested using a simple colorimetric analytical methodology; (3) Results: Sufficient evidence was obtained to suggest that the strips can potentially be used as a rapid and convenient early, alternative bacteria screening tool for a variety of applications; (4) Conclusions: The potential of strips for the rapid detection of bacteria compared to standard bacteria culture is a key advantage in certain clinical, agricultural, and environmental applications.
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Affiliation(s)
- Michael Muljadi
- Institute of Biomedical Engineering, National Tsinghua University, Hsinchu 300, Taiwan; (M.M.); (C.-M.C.)
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsinghua University, Hsinchu 300, Taiwan; (M.M.); (C.-M.C.)
| | - Ching-Ju Shen
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
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13
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Mukherjee T, Regar R, Soppina V, Kanvah S. Stress-responsive rhodamine bioconjugates for membrane-potential-independent mitochondrial live-cell imaging and tracking. Org Biomol Chem 2021; 19:10090-10096. [PMID: 34610076 DOI: 10.1039/d1ob01741a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The 'powerhouses' of cell, mitochondria have seen an upsurge of interest in investigations pertaining to the imaging and mapping of physiological processes. By utilizing sterol-modified rhodamine, we have performed the live-cell imaging of mitochondria without dependence on a membrane potential. The sterol probes are highly biocompatible, and they can track the mitochondrial live-cell dynamics in a background-free manner with improved brightness and impressive contrast. This is the first attempt to study the stress response using a direct fluorescence readout with bio-conjugates of rhodamine inside mitochondria. The results pave the way for developing different sterol markers for understanding cellular responses and function.
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Affiliation(s)
- Tarushyam Mukherjee
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, India.
| | - Ramprasad Regar
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, India.
| | - Virupakshi Soppina
- Discipline of Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, India.
| | - Sriram Kanvah
- Discipline of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, India.
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14
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Ávila-Sánchez MA, Isaac-Olivé K, Aranda-Lara L, Morales-Ávila E, Plata-Becerril A, Jiménez-Mancilla NP, Ocampo-García B, Estrada JA, Santos-Cuevas CL, Torres-García E, Camacho-López MA. Targeted photodynamic therapy using reconstituted high-density lipoproteins as rhodamine transporters. Photodiagnosis Photodyn Ther 2021; 37:102630. [PMID: 34798347 DOI: 10.1016/j.pdpdt.2021.102630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 10/09/2021] [Accepted: 11/12/2021] [Indexed: 01/10/2023]
Abstract
Reconstituted high-density lipoprotein (rHDL) nanoparticles are excellent transporters of molecules and very useful for targeted therapy as they specifically recognize the scavenger receptor, class B1 (SR-B1) that is present on the surface of a wide range of tumor cells. However, they have rarely been employed to transport photosensitizers (PS) for photodynamic therapy (PDT). Rhodamine (R) compounds have been dismissed as useful PSs for PDT due to their low 1O2 production, excitation wavelengths with little tissue penetration, and poor selectivity for tumor cells. It was recently demonstrated that when irradiating at 532 nm or with Cerenkov radiation (CR) from a β-emitting radionuclide, R123, R6G, and RB undergo electron transfer reactions (type I reaction) with folic acid. R6G also produces type I reactions with O2. In this work, the photodynamic effects of the rHDL-R system were evaluated in vitro. rHDL nanoparticles loaded with R123, R6G, and RB were synthesized, and the PS was internalized into T47D tumor cells. When cells were irradiated with a 532-nm laser in the presence of an rHDL-R systems, a cytotoxic photodynamic effect was obtained in the order R6G > R123 > RB. In the presence of CR from a 177Lu source, cytotoxicity showed the order R6G > RB > R123. The higher cytotoxicity induced by R6G in both cases corresponds to higher cellular internalization and larger production of type I and II reactions. Thus, in this work, it is proposed that rHDL-R/177Lu system can be applied in theragnostics as a multimodal radiotherapy-PDT-imaging system (imaging by SPECT or Cerenkov) and in hypoxic solid tumors in which external radiation is not effective and 177Lu-CR acts as light source.
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Affiliation(s)
- Marcela A Ávila-Sánchez
- Laboratorio de Investigación en Teranóstica, Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca, Estado de México 50180, Mexico
| | - Keila Isaac-Olivé
- Laboratorio de Investigación en Teranóstica, Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca, Estado de México 50180, Mexico.
| | - Liliana Aranda-Lara
- Laboratorio de Investigación en Teranóstica, Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca, Estado de México 50180, Mexico.
| | - Enrique Morales-Ávila
- Laboratorio de Toxicología y Farmacia, Facultad de Química, Universidad Autónoma del Estado de México, Toluca, Estado de México 50120, Mexico
| | - Adriana Plata-Becerril
- Laboratorio de Toxicología y Farmacia, Facultad de Química, Universidad Autónoma del Estado de México, Toluca, Estado de México 50120, Mexico
| | - Nallely P Jiménez-Mancilla
- Laboratorio Nacional de Investigación y Desarrollo de Radiofármacos-CONACyT, Instituto Nacional de Investigaciones Nucleares, Ocoyoacac, Estado de México 52750, Mexico.
| | - Blanca Ocampo-García
- Laboratorio Nacional de Investigación y Desarrollo de Radiofármacos-CONACyT, Instituto Nacional de Investigaciones Nucleares, Ocoyoacac, Estado de México 52750, Mexico
| | - José A Estrada
- Laboratorio de Neuroquímica, Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca, Estado de México 50180, Mexico
| | - Clara L Santos-Cuevas
- Laboratorio Nacional de Investigación y Desarrollo de Radiofármacos-CONACyT, Instituto Nacional de Investigaciones Nucleares, Ocoyoacac, Estado de México 52750, Mexico
| | - Eugenio Torres-García
- Laboratorio de Dosimetría y Simulación Monte Carlo, Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca, Estado de México 50180, Mexico
| | - Miguel A Camacho-López
- Laboratorio de Fotomedicina, Biofotónica y Espectroscopía Láser de Pulsos Ultracortos, Facultad de Medicina, Universidad Autónoma del Estado de México, Toluca, Estado de México 50180, Mexico
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15
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Craparo EF, Musumeci T, Bonaccorso A, Pellitteri R, Romeo A, Naletova I, Cucci LM, Cavallaro G, Satriano C. mPEG-PLGA Nanoparticles Labelled with Loaded or Conjugated Rhodamine-B for Potential Nose-to-Brain Delivery. Pharmaceutics 2021; 13:pharmaceutics13091508. [PMID: 34575584 PMCID: PMC8471208 DOI: 10.3390/pharmaceutics13091508] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 11/16/2022] Open
Abstract
Nowdays, neurodegenerative diseases represent a great challenge from both the therapeutic and diagnostic points of view. Indeed, several physiological barriers of the body, including the blood brain barrier (BBB), nasal, dermal, and intestinal barriers, interpose between the development of new drugs and their effective administration to reach the target organ or target cells at therapeutic concentrations. Currently, the nose-to-brain delivery with nanoformulations specifically designed for intranasal administration is a strategy widely investigated with the goal to reach the brain while bypassing the BBB. To produce nanosystems suitable to study both in vitro and/or in vivo cells trafficking for potential nose-to-brain delivery route, we prepared and characterized two types of fluorescent poly(ethylene glycol)-methyl-ether-block-poly(lactide-co-glycolide) (PLGA-PEG) nanoparticles (PNPs), i.e., Rhodamine B (RhB) dye loaded- and grafted- PNPs, respectively. The latter were produced by blending into the PLGA-PEG matrix a RhB-labeled polyaspartamide/polylactide graft copolymer to ensure a stable fluorescence during the time of analysis. Photon correlation spectroscopy (PCS), UV-visible (UV-vis) spectroscopies, differential scanning calorimetry (DSC), atomic force microscopy (AFM) were used to characterize the RhB-loaded and RhB-grafted PNPs. To assess their potential use for brain targeting, cytotoxicity tests were carried out on olfactory ensheathing cells (OECs) and neuron-like differentiated PC12 cells. Both PNP types showed mean sizes suitable for nose-to-brain delivery (<200 nm, PDI < 0.3) and were not cytotoxic toward OECs in the concentration range tested, while a reduction in the viability on PC12 cells was found when higher concentrations of nanomedicines were used. Both the RhB-labelled NPs are suitable drug carrier models for exploring cellular trafficking in nose-to-brain delivery for short-time or long-term studies.
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Affiliation(s)
- Emanuela Fabiola Craparo
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), 90123 Palermo, Italy; (E.F.C.); (G.C.)
| | - Teresa Musumeci
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy; (A.B.); (A.R.)
- Correspondence: ; Tel.: +39-095-738-4021
| | - Angela Bonaccorso
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy; (A.B.); (A.R.)
| | - Rosalia Pellitteri
- Institute for Biomedical Research and Innovation, National Research Council, 95126 Catania, Italy;
| | - Alessia Romeo
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy; (A.B.); (A.R.)
- PhD in Neuroscience, Department of Biomedical and Biotechnological Sciences, School of Medicine, University of Catania, 95125 Catania, Italy
| | - Irina Naletova
- Inter-University Consortium for Research on the Chemistry of Metal Ions in Biological Systems, University of Bari, 70126 Bari, Italy; (I.N.); (C.S.)
- Institute of Crystallography, Research National Council, 95126 Catania, Italy
| | - Lorena Maria Cucci
- Department of Chemical Science, University of Catania, 95125 Catania, Italy;
| | - Gennara Cavallaro
- Department of Biological, Chemical and Pharmaceutical Science and Technologies (STEBICEF), 90123 Palermo, Italy; (E.F.C.); (G.C.)
| | - Cristina Satriano
- Inter-University Consortium for Research on the Chemistry of Metal Ions in Biological Systems, University of Bari, 70126 Bari, Italy; (I.N.); (C.S.)
- Department of Chemical Science, University of Catania, 95125 Catania, Italy;
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16
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Devi RV, Raj D, Doble M. Lockdown of mitochondrial Ca 2+ extrusion and subsequent resveratrol treatment kill HeLa cells by Ca 2+ overload. Int J Biochem Cell Biol 2021; 139:106071. [PMID: 34428589 DOI: 10.1016/j.biocel.2021.106071] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/06/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
Anticancer effect of resveratrol and the role of sodium/lithium/calcium exchanger in context with calcium ions are studied in human cervical cancer cell line. This therapeutic approach using siNCLX mediated gene silencing and drug therapy with resveratrol indicates the disruption of calcium homeostasis, increase in caspase (-3, 8, 9) mRNA expressions and DNA damage leading to apoptotic cell death. Monitoring the intracellular Ca2+ changes using fluo-4AM indicates highest rise in [Ca2+] level in sodium/lithium/calcium exchanger silenced group with five different stages, that is distinguishable based on the fluorescence intensity. In resveratrol treated and siNCLX + resveratrol treated groups no such cell staging differences were observed, despite uniform Ca2+ rise followed by decrease in the intensity. Integrating RNAi gene silencing of sodium/lithium/calcium exchanger with resveratrol can form the most interesting, efficient and promising therapeutic strategy in the treatment of cancer.
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Affiliation(s)
- R Viswambari Devi
- Bioengineering and Drug Design Laboratory, Department of Biotechnology, Indian Institute of Technology, Chennai, 600036, India
| | - Divakar Raj
- Bioengineering and Drug Design Laboratory, Department of Biotechnology, Indian Institute of Technology, Chennai, 600036, India
| | - Mukesh Doble
- Bioengineering and Drug Design Laboratory, Department of Biotechnology, Indian Institute of Technology, Chennai, 600036, India.
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17
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Sorrells JE, Iyer RR, Yang L, Bower AJ, Spillman DR, Chaney EJ, Tu H, Boppart SA. Real-time pixelwise phasor analysis for video-rate two-photon fluorescence lifetime imaging microscopy. BIOMEDICAL OPTICS EXPRESS 2021; 12:4003-4019. [PMID: 34457395 PMCID: PMC8367245 DOI: 10.1364/boe.424533] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 05/06/2023]
Abstract
Two-photon fluorescence lifetime imaging microscopy (FLIM) is a widely used technique in biomedical optical imaging. Presently, many two-photon time-domain FLIM setups are limited by long acquisition and postprocessing times that decrease data throughput and inhibit the ability to image fast sub-second processes. Here, we present a versatile two-photon FLIM setup capable of video-rate (up to 25 fps) imaging with graphics processing unit (GPU)-accelerated pixelwise phasor analysis displayed and saved simultaneously with acquisition. The system uses an analog output photomultiplier tube in conjunction with 12-bit digitization at 3.2 GHz to overcome the limited maximum acceptable photon rate associated with the photon counting electronics in many FLIM systems. This allows for higher throughput FLIM acquisition and analysis, and additionally enables the user to assess sample fluorescence lifetime in real-time. We further explore the capabilities of the system to examine the kinetics of Rhodamine B uptake by human breast cancer cells and characterize the effect of pixel dwell time on the reduced nicotinamide adenine dinucleotide and reduced nicotinamide adenine dinucleotide phosphate (NAD(P)H) autofluorescence lifetime estimation accuracy.
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Affiliation(s)
- Janet E. Sorrells
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Rishyashring R. Iyer
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Lingxiao Yang
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Andrew J. Bower
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Darold R. Spillman
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Eric J. Chaney
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Haohua Tu
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Stephen A. Boppart
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, Urbana, IL 61801, USA
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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18
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Gupta P, Gupta H, Poluri KM. Geraniol eradicates Candida glabrata biofilm by targeting multiple cellular pathways. Appl Microbiol Biotechnol 2021; 105:5589-5605. [PMID: 34196746 DOI: 10.1007/s00253-021-11397-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 05/12/2021] [Accepted: 06/08/2021] [Indexed: 11/28/2022]
Abstract
Global burden of fungal infections and associated health risk has accelerated at an incredible pace and needs to be attended at the earliest with an unbeatable therapeutic intervention. Candida glabrata is clinically the most relevant and least drug susceptible Candida species. In the pursuit of mining alternative novel drug candidates, the antifungal activity of a monoterpene phytoactive molecule geraniol (GR) against C. glabrata biofilm was evaluated. Biofilm inhibitory and eradication ability of GR evaluated against C. glabrata along with its clinical isolates. Impact of GR on various cellular pathways was evaluated to delineate its antifungal mode of action. GR has inhibited both planktonic and sessile growth of all the studied C. glabrata strains and eradicated the mature biofilm. GR reduced the carbohydrate and eDNA content, as well as hydrolytic enzyme activity in extracellular matrix of C. glabrata. The chemical profiling, microscopic, and spectroscopic studies revealed that GR targets chitin and β-glucan in cell wall. Further, results highlighted the reduction of cell membrane ergosterol content, and blocking of ABC drug efflux pump by GR which was also confirmed by RT-PCR where expression of CDR1 and ERG4 was downregulated in GR exposed C. glabrata cells. The fluorescence microscopy and flow cytometry results emphasized the alteration in mitochondrial activity, increased Ca+2 uptake, thus changing the membrane permeability ensuing increased cytochrome C release from mitochondria to cytoplasm. Indeed, GR also has arrested cell cycle in G1/S phase and interfered with DNA replication. These observations suggest GR targets multiple cellular pathways and mediated killing of C. glabrata cells via apoptosis. In conclusion, the present study strengthens the candidacy of GR as novel antifungal therapeutic. Key points • GR inhibits growth and eradicates biofilm of C. glabrata and its clinical isolates. • GR inactivates the hydrolytic enzymes in extracellular matrix. • GR mediates C. glabrata apoptosis by interfering with multiple signaling pathways.
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Affiliation(s)
- Payal Gupta
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Hrishikesh Gupta
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Krishna Mohan Poluri
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India. .,Center for Nanotechnology, Indian Institute of Technology Roorkee (IIT-Roorkee), Roorkee, Uttarakhand, 247667, India.
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19
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Hu Q, He C, Lu Z, Xu L, Fu Z. Mitochondria and Endoplastic Reticulum Targeting Strategy for Enhanced Phototherapy. ACS APPLIED BIO MATERIALS 2021; 4:3015-3026. [PMID: 35014389 DOI: 10.1021/acsabm.1c00155] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
To ensure improved efficacy and minimized toxicity of therapeutic molecules, it is generally accepted that specifically delivering them to the subcellular site of their action will be attractive. Phototherapy has received considerable attention because of its noninvasiveness, high temporal-spatial resolution, and minimal drug resistance. As important functional organelles in cells, mitochondria and endoplasmic reticulum (ER) participate in fundamental cellular processes, which make them much more sensitive to reactive oxygen species (ROS) and hyperthermia. Thus, mitochondria- or ER-targeted phototherapy will be rational strategies for synergetic cancer therapy. In this review, we focus on the latest advances in molecules and nanomaterials currently used for mitochondria- and ER-targeted phototherapy.
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Affiliation(s)
- Qinglian Hu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Chao He
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Zhuoting Lu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Liwang Xu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Zhengwei Fu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, China
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20
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Lu M, Mishra A, Boschetti C, Lin J, Liu Y, Huang H, Kaminski CF, Huang Z, Tunnacliffe A, Kaminski Schierle GS. Sea Cucumber-Derived Peptides Alleviate Oxidative Stress in Neuroblastoma Cells and Improve Survival in C. elegans Exposed to Neurotoxic Paraquat. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8842926. [PMID: 33959216 PMCID: PMC8075690 DOI: 10.1155/2021/8842926] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 03/16/2021] [Accepted: 03/30/2021] [Indexed: 01/22/2023]
Abstract
Oxidative stress results when the production of oxidants outweighs the capacity of the antioxidant defence mechanisms. This can lead to pathological conditions including cancer and neurodegeneration. Consequently, there is considerable interest in compounds with antioxidant activity, including those from natural sources. Here, we characterise the antioxidant activity of three novel peptides identified in protein hydrolysates from the sea cucumber Apostichopus japonicus. Under oxidative stress conditions, synthetic versions of the sea cucumber peptides significantly compensate for glutathione depletion, decrease mitochondrial superoxide levels, and alleviate mitophagy in human neuroblastoma cells. Moreover, orally supplied peptides improve survival of the Caenorhabditis elegans after treatment with paraquat, the latter of which leads to the production of excessive oxidative stress. Thus, the sea cucumber peptides exhibit antioxidant activity at both the cellular and organism levels and might prove attractive as nutritional supplements for healthy ageing.
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Affiliation(s)
- Meng Lu
- Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Ajay Mishra
- Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Chiara Boschetti
- Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Jing Lin
- Research Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yushuang Liu
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Hongliang Huang
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Clemens F. Kaminski
- Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Zebo Huang
- Research Institute for Food Nutrition and Human Health, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Alan Tunnacliffe
- Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Gabriele S. Kaminski Schierle
- Cambridge Infinitus Research Centre, Department of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
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21
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Rivas Aiello MB, Azcárate JC, Zelaya E, David Gara P, Bosio GN, Gensch T, Mártire DO. Photothermal therapy with silver nanoplates in HeLa cells studied by in situ fluorescence microscopy. Biomater Sci 2021; 9:2608-2619. [PMID: 33595000 DOI: 10.1039/d0bm01952f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photothermal therapy (PTT) is a noninvasive treatment for cancer relying on the incorporation of NIR-light absorbing nanomaterials into cells, which upon illumination release heat causing thermally induced cell death. We prove that irradiation of aqueous suspensions of poly(vinylpyrrolidone)-coated silver nanoplates (PVPAgNP) or PVPAgNP in HeLa cells with red or NIR lasers causes a sizeable photothermal effect, which in cells can be visualized with the temperature sensing fluorophore Rhodamine B (RhB) using spinning disk confocal fluorescence microscopy or fluorescence lifetime imaging. Upon red-light irradiation of cells that were incubated with both, RhB and PVPAgNP at concentrations with no adverse effects on cell viability, a substantial heat release is detected. Initiation of cell death by photothermal effect is observed by positive signals of fluorescent markers for early and late apoptosis. Surprisingly, a new nanomaterial-assisted cell killing mode is operating when PVPAgNP-loaded HeLa cells are excited with moderate powers of fs-pulsed NIR light. Small roundish areas are generated with bright and fast (<1 ns) decaying emission, which expand fast and destroy the whole cell in seconds. This characteristic emission is assigned to efficient optical breakdown initiation around the strongly absorbing PVPAgNP leading to plasma formation that spreads fast through the cell.
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Affiliation(s)
- María Belén Rivas Aiello
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 16, Suc. 4, (1900) La Plata, Argentina.
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22
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Insights into the modulatory effect of magnesium on efflux mechanisms of Candida albicans reveal inhibition of ATP binding cassette multidrug transporters and dysfunctional mitochondria. Biometals 2021; 34:329-339. [PMID: 33394279 DOI: 10.1007/s10534-020-00282-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 12/21/2020] [Indexed: 10/22/2022]
Abstract
Candida infections pose a serious hazard to public health followed by widespread and prolonged deployment of antifungal drugs has which has led multidrug resistance (MDR) progress in prevalent human fungal pathogen, Candida albicans. Despite the fact that MDR is multifactorial phenomenon govern by several mechanisms in C. albicans, overexpression of drug efflux transporters by far remains the leading cause of MDR govern by ATP Binding Cassette (ABC) or major facilitator superfamily (MFS) transporters. Hence searching for strategies to target efflux pumps transporter still signifies a promising approach. In this study we analyzed the effect of magnesium (Mg) deprivation, on efflux pump action of C. albicans. We explored that Mg deprivation specially inhibits efflux of transporters (CaCdr1p and CaCdr2p) belonging to ABC superfamily as revealed by rhodamine 6G and Nile red accumulation. Furthermore, Mg deprivation causes mislocalization of CaCdr1p and CaCdr2p and reduced transcripts of CDR1 and CDR2 with no effect on CaMdr1p. Additionally, Mg deprivation causes depletion of ergosterol content in azole sensitive and resistant clinical matched pair of isolates Gu4/Gu5 and F2/F5 of C. albicans. Lastly, we observed that Mg deprivation impairs mitochondrial potential which could be the causal reason for abrogated efflux activity. With growing appreciation of manipulating metal homeostasis to combat MDR, inhibition of efflux activity under Mg deprivation warrants further studies to be utilized as an effective antifungal strategy.
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Ma C, Xia F, Kelley SO. Mitochondrial Targeting of Probes and Therapeutics to the Powerhouse of the Cell. Bioconjug Chem 2020; 31:2650-2667. [PMID: 33191743 DOI: 10.1021/acs.bioconjchem.0c00470] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mitochondria, colloquially known as "the powerhouse of the cell", play important roles in production, but also in processes critical for cellular fate such as cell death, differentiation, signaling, metabolic homeostasis, and innate immunity. Due to its many functions in the cell, the mitochondria have been linked to a variety of human illnesses such as diabetes, cancer, and neurodegenerative diseases. In order to further our understanding and pharmaceutical targeting of this critical organelle, effective strategies must be employed to breach the complex barriers and microenvironment of mitochondria. Here, we summarize advancements in mitochondria-targeted probes and therapeutics.
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Affiliation(s)
- Cindy Ma
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada M5S 3M2
| | - Fan Xia
- Department of Pharmaceutical Sciences, University of Toronto, Toronto, Ontario, Canada M5S 3M2
| | - Shana O Kelley
- Departments of Chemistry, Biochemistry, and Pharmaceutical Sciences and the Institute for Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3M2
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24
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Brkovic N, Zhang L, Peters JN, Kleine-Doepke S, Parak WJ, Zhu D. Quantitative Assessment of Endosomal Escape of Various Endocytosed Polymer-Encapsulated Molecular Cargos upon Photothermal Heating. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003639. [PMID: 33108047 DOI: 10.1002/smll.202003639] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/09/2020] [Indexed: 06/11/2023]
Abstract
Encapsulated molecular cargos are efficiently endocytosed by cells. For cytosolic delivery, understanding the dynamic process of cargos release from the carrier vehicles used for encapsulation and the lysosomes where the carrier vehicles are trapped (which in general is the bottleneck), followed by diffusion in the cytosol is important for improving drug/gene delivery strategies. A methodology is reported to image this process on a millisecond scale and to quantitatively analyze the data. Polyelectrolyte capsules with embedded gold nanostars to encapsulate 43 fluorescent molecular cargos with diverse properties, ranging from small fluorophores to fluorescently labeled proteins, siRNA, etc., are used. By short laser irradiation intracellular release of the molecular cargos from endocytosed capsules into the cytosol is triggered, and their intracellular spreading is imaged. Most of the released molecular cargos evenly distribute inside the entire cell, while others are enriched in certain cell compartments. The time the different molecular cargos take to distribute within cells, i.e., the spreading time, is used as a quantifier. Quantitative analysis reveals that intracellular spread cannot be described by free diffusion, but is determined by interaction of the molecular cargo with intracellular components.
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Affiliation(s)
- Nico Brkovic
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Li Zhang
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Jan N Peters
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Stephan Kleine-Doepke
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Wolfgang J Parak
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
| | - Dingcheng Zhu
- Center for Hybrid Nanostructures (CHyN) and Fachbereich Physik, Universitat Hamburg, Hamburg, 20146, Germany
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Bulumulla C, Kularatne RN, Catchpole T, Takacs A, Christie A, Gilfoyle A, Nguyen TD, Stefan MC, Csaky KG. Investigating the Effect of Esterification on Retinal Pigment Epithelial Uptake Using Rhodamine B Derivatives. Transl Vis Sci Technol 2020; 9:18. [PMID: 32821515 PMCID: PMC7409196 DOI: 10.1167/tvst.9.6.18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 03/12/2020] [Indexed: 11/25/2022] Open
Abstract
Purpose This study investigated the effects of esterification and increased lipophilicity on cellular penetration, accumulation and retention in ARPE-19-nic cells using ester functionalized rhodamine B dyes. Methods Rhodamine B was esterified to generate four dyes with increasing lipophilicity. Cellular uptake, retention and mitochondrial localization were investigated in vitro using ARPE-19-nic cells using direct intracellular and extracellular and mitochondrial fluorescence quantitation, confocal and high-resolution live cell imaging and co-localization with Mito-GFP. Results Cellular penetrance, mitochondrial accumulation, and retention of the esterified dyes were increased in ARPE-19-nic cells compared with the nonesterified parent dye by direct fluorescence quantitation. Imaging demonstrated intracellular accumulation was confined to mitochondria as confirmed by colocalization with Mito-GFP. Conclusions Esterification is an effective way to increase lipophilicity of a dye to improve cellular penetration of chemical entities. These observations may be key to improving retinal drug delivery for retinal pigment epithelium–based diseases. Translational Relevance Understanding the intracellular distribution of drugs into retinal pigment epithelium cells is a critical component for identifying potential therapies for retinal pigment epithelium–based diseases.
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Affiliation(s)
| | | | | | | | | | | | | | - Mihaela C Stefan
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, TX, USA.,Department of Bioengineering, The University of Texas at Dallas, Richardson, TX, USA
| | - Karl G Csaky
- Retina Foundation of the Southwest, Dallas, TX, USA
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Supawat B, Udomtanakunchai C, Kothan S, Tungjai M. The Effects of Iodinated Radiographic Contrast Media on Multidrug-resistant K562/Dox Cells: Mitochondria Impairment and P-glycoprotein Inhibition. Cell Biochem Biophys 2019; 77:157-163. [PMID: 30924055 DOI: 10.1007/s12013-019-00868-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/11/2019] [Indexed: 02/07/2023]
Abstract
Iodinated radiographic contrast media is used in cancer radiography for cancer diagnosis. The aim of this present study was to examine five iodinated radiographic contrast media (IRCM) (i.e., iohexol, iopamidol, iobitridol, ioxaglate, and iodixanol) in terms of their cytotoxicity, mitochondria membrane potential (ΔΨm), and P-glycoprotein function in multidrug resistant K562/Dox cancer cells and corresponding sensitive cancer cells. The cytotoxicity was determined by colorimetric resazurin reduction assay. The ΔΨm and P-glycoprotein function was measured using a noninvasive functional spectrofluorometry. Rhodamine B, fluorescence probe, was used to estimate ΔΨm. The kinetic of P-glycoprotein-mediated efflux pirarubicin was used to monitor P-glycoprotein function in multidrug resistant (MDR) cancer cells. The results showed that ioxaglate and iodixanol show similar efficacy in MDR cancer cells and for their corresponding sensitive cancer cells. Iopamidol, iohexol, and iobitridol showed higher efficacy in MDR cancer cells than for the corresponding sensitive cancer cells by approximately 2 fold. The results also showed no significant change in the |ΔΨm| values in treated K562 and K562/Dox cancer cells when compared to the non-treated K562 and K562/Dox cancer cells. However, there were notable changes detected for iobitridol and iodixanol at 50 mgI/mL. Similarly, the results showed significant differences in P-glycoprotein function of K562/Dox cancer cells after treatment with IRCM when compared to the non-treated K562/Dox cancer cells, with iohexol and iodixanol being the notable exceptions once again. In this present study, IRCM exhibited cytotoxicity on MDR cancer cells and their corresponding sensitive cancer cells. IRCM also showed potential as an anticancer agent in the future.
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Affiliation(s)
- Benjamaporn Supawat
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
- Graduate School, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Chatchanok Udomtanakunchai
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Suchart Kothan
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Montree Tungjai
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, 50200, Thailand.
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27
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Adiraj Iyer M, Eddington DT. Storing and releasing rhodamine as a model hydrophobic compound in polydimethylsiloxane microfluidic devices. LAB ON A CHIP 2019; 19:574-579. [PMID: 30681692 DOI: 10.1039/c9lc00039a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Polydimethylsiloxane (PDMS) is a ubiquitous material used in soft lithography and microfluidics. Due to its hydrophobic nature, PDMS tends to absorb small hydrophobic molecules, and is seen as a major disadvantage of the material in pharmaceutical and cell culture studies. While there have been extensive reports of attempts to treat PDMS to limit or block this absorption, little attention has been given to using this property as a feature in microfluidic devices. In this work, we leverage the ability of PDMS to store hydrophobic molecules inside the PDMS matrix and release them over time in a sustained manner.
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Affiliation(s)
- M Adiraj Iyer
- Dept of Bioengineering, University of Illinois at Chicago, Chicago, USA.
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28
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Lin F, Bao YW, Wu FG. Improving the Phototherapeutic Efficiencies of Molecular and Nanoscale Materials by Targeting Mitochondria. Molecules 2018; 23:E3016. [PMID: 30453692 PMCID: PMC6278291 DOI: 10.3390/molecules23113016] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/09/2018] [Accepted: 11/13/2018] [Indexed: 11/16/2022] Open
Abstract
Mitochondria-targeted cancer phototherapy (PT), which works by delivering photoresponsive agents specifically to mitochondria, is a powerful strategy to improve the phototherapeutic efficiency of anticancer treatments. Mitochondria play an essential role in cellular apoptosis, and are relevant to the chemoresistance of cancer cells. Furthermore, mitochondria are a major player in many cellular processes and are highly sensitive to hyperthermia and reactive oxygen species. Therefore, mitochondria serve as excellent locations for organelle-targeted phototherapy. In this review, we focus on the recent advances of mitochondria-targeting materials for mitochondria-specific PT. The combination of mitochondria-targeted PT with other anticancer strategies is also summarized. In addition, we discuss both the challenges currently faced by mitochondria-based cancer PT and the promises it holds.
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Affiliation(s)
- Fengming Lin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
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29
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Singh S, Fatima Z, Ahmad K, Hameed S. Fungicidal action of geraniol against Candida albicans is potentiated by abrogated CaCdr1p drug efflux and fluconazole synergism. PLoS One 2018; 13:e0203079. [PMID: 30157240 PMCID: PMC6114893 DOI: 10.1371/journal.pone.0203079] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/14/2018] [Indexed: 12/16/2022] Open
Abstract
Among the several mechanisms of multidrug resistance (MDR), overexpression of drug efflux pumps CaCdr1p and CaMdr1p belonging to ATP binding cassette (ABC) and major facilitator superfamily (MFS) respectively remain the predominant mechanisms of candidal infections. Therefore inhibiting or modulating the function of these transporters continues to draw attention as effective strategy to combat MDR. We have previously reported the antifungal potential of Geraniol (Ger), a natural monoterpenoid from Palmarosa oil, against Candida albicans. Herein, we explored the fungicidal nature of Ger. The Rhodamine 6G (R6G) and Nile red accumulation confirms the specific effect on CaCdr1p. Mechanistic insights with Candida cells overexpressing CaCdr1p and CaMdr1p revealed that Ger specifically modulates CaCdr1p activity. Kinetic studies further unraveled the competitive inhibition of Ger for R6G efflux as evident from increased apparent Km without affecting Vmax value. The effect of Ger on CaCdr1p was substantiated by molecular docking analyses, which depicted in-silico binding affinity of Ger with CaCdr1p and explored that Ger binds to the active site of CaCdr1p with higher binding energy. Although RT-PCR and western blot revealed no change in expressions of CDR1 and CaCdr1p, confocal microscopy images however depicted CaCdr1p mislocalization in presence of Ger. Interestingly, Ger was synergistic (FICI<0.5) with fluconazole (FLC) which is a well known antifungal drug. Furthermore, Ger sensitizes the FLC sensitive and resistant clinical matched pair of isolates Gu4/Gu5 and led to abrogated R6G efflux and depleted ergosterol. Furthermore, Rhodamine B labeling demonstrates altered mitochondrial potential with Ger which suggest possible linkage of dysfunctional mitochondria with CaCdr1p activity. We also estimated phenotypic virulence marker extracellular phospholipase activity which was considerably diminished along with inhibited cell adherence and biofilm biomass. Lastly, antifungal efficacy of Ger was demonstrated by enhanced survival of Caenorhabditis elegans model and negligible hemolytic activity (20%). Together, modulation of efflux pump activity by Ger and FLC synergism represent a promising approach for combinatorial treatment of candidiasis.
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Affiliation(s)
- Shweta Singh
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram (Manesar), India
| | - Zeeshan Fatima
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram (Manesar), India
| | - Kamal Ahmad
- Center for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Saif Hameed
- Amity Institute of Biotechnology, Amity University Haryana, Gurugram (Manesar), India
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Bolze F, Jenni S, Sour A, Heitz V. Molecular photosensitisers for two-photon photodynamic therapy. Chem Commun (Camb) 2018; 53:12857-12877. [PMID: 29115314 DOI: 10.1039/c7cc06133a] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Two-photon excitation has attracted the attention of biologists, especially after the development of two-photon excited microscopy in the nineties. Since then, new applications have rapidly emerged such as the release of biologically active molecules and photodynamic therapy (PDT) using two-photon excitation. PDT, which requires a light-activated drug (photosensitiser), is a clinically approved and minimally invasive treatment for cancer and for non-malignant diseases. This feature article focuses on the engineering of molecular two-photon photosensitisers for PDT, which should bring important benefits to the treatment, increase the treatment penetration depth with near-infrared light excitation, improve the spatial selectivity and reduce the photodamage to healthy tissues. After an overview of the two-photon absorption phenomenon and the methods to evaluate two-photon induced phototoxicity on cell cultures, the different classes of photosensitisers described in the literature are discussed. The two-photon PDT performed with historical one-photon sensitisers are briefly presented, followed by specifically engineered cyclic tetrapyrrole photosensitisers, purely organic photosensitisers and transition metal complexes. Finally, targeted two-photon photosensitisers and theranostic agents that should enhance the selectivity and efficiency of the treatment are discussed.
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Affiliation(s)
- F Bolze
- CAMB, UMR 7199, UdS/CNRS, Faculté de Pharmacie, Université de Strasbourg, 74 route du Rhin, 67401 Illkirch, France.
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Gao Q, Liu H, Ding Q, Du J, Liu C, Yang W, Shen P, Yang C. A red-emitting indolium fluorescence probe for membranes - flavonoids interactions. LUMINESCENCE 2018; 33:582-587. [PMID: 29405584 DOI: 10.1002/bio.3449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/03/2017] [Indexed: 12/12/2022]
Abstract
The red-emitting indolium derivative compound (E)-2-(4-(diphenylamino)styryl)-1,3,3-trimethyl-3H-indol-1-ium iodide (H3) was demonstrated as a sensitive membrane fluorescence probe. The probe located at the interface of liposomes when mixed showed much fluorescence enhancement by inhibiting the twisted intramolecular charge transfer state. After ultrasonic treatment, it penetrated into lipid bilayers with the emissions leveling off and a rather large encapsulation efficiency (71.4%) in liposomes. The ζ-potential and particle size measurement confirmed that the charged indolium group was embedded deeply into lipid bilayers. The probe was then used to monitor the affinities of antioxidant flavonoids for membranes. It was verified that quercetin easily interacted with liposomes and dissociated the probe from the internal lipid within 60 s under the condition of simply mixing. The assessment of binding affinities of six flavonoids and the coincident results with their antioxidation activities indicated that it was a promising membrane probe for the study of drug bio-affinities.
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Affiliation(s)
- Qingyun Gao
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Han Liu
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Qiongjie Ding
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Jinya Du
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Chunlin Liu
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Wei Yang
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Ping Shen
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
| | - Changying Yang
- College of Biological and Pharmaceutical Science, China Three Gorges University, Yichang, P. R. China
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Sodano F, Gazzano E, Fraix A, Rolando B, Lazzarato L, Russo M, Blangetti M, Riganti C, Fruttero R, Gasco A, Sortino S. A Molecular Hybrid for Mitochondria-Targeted NO Photodelivery. ChemMedChem 2017; 13:87-96. [DOI: 10.1002/cmdc.201700608] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/04/2017] [Indexed: 12/12/2022]
Affiliation(s)
- Federica Sodano
- Department of Science and Drug Technology; University of Torino; 10125 Torino Italy
| | - Elena Gazzano
- Department of Oncology; University of Torino; Via Santena 5/bis 10126 Torino Italy
| | - Aurore Fraix
- Laboratory of Photochemistry, Department of Drug Sciences; University of Catania; 95125 Catania Italy
| | - Barbara Rolando
- Department of Science and Drug Technology; University of Torino; 10125 Torino Italy
| | - Loretta Lazzarato
- Department of Science and Drug Technology; University of Torino; 10125 Torino Italy
| | - Marina Russo
- Laboratory of Photochemistry, Department of Drug Sciences; University of Catania; 95125 Catania Italy
| | - Marco Blangetti
- Department of Science and Drug Technology; University of Torino; 10125 Torino Italy
| | - Chiara Riganti
- Department of Oncology; University of Torino; Via Santena 5/bis 10126 Torino Italy
| | - Roberta Fruttero
- Department of Science and Drug Technology; University of Torino; 10125 Torino Italy
| | - Alberto Gasco
- Department of Science and Drug Technology; University of Torino; 10125 Torino Italy
| | - Salvatore Sortino
- Laboratory of Photochemistry, Department of Drug Sciences; University of Catania; 95125 Catania Italy
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Saibabu V, Singh S, Ansari MA, Fatima Z, Hameed S. Insights into the intracellular mechanisms of citronellal in Candida albicans: implications for reactive oxygen species-mediated necrosis, mitochondrial dysfunction, and DNA damage. Rev Soc Bras Med Trop 2017; 50:524-529. [DOI: 10.1590/0037-8682-0114-2017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 08/10/2017] [Indexed: 02/06/2023] Open
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Tungjai M, Phathakanon N, Rithidech KN. Effects of Medical Diagnostic Low-dose X Rays on Human Lymphocytes: Mitochondrial Membrane Potential, Apoptosis and Cell Cycle. HEALTH PHYSICS 2017; 112:458-464. [PMID: 28350700 DOI: 10.1097/hp.0000000000000647] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Low-dose radiation is widely used across the world for the diagnosis of many diseases by means of a variety of imaging technologies. However, the harmful effects of exposure to low-dose radiation during medical examination remain controversial. The authors studied the effects of medical diagnostic low-dose x rays (i.e., 0.03, 0.05, or 0.1 mGy) after an in vitro exposure of human lymphocytes. Cells with no irradiation served as the non-irradiated control group. Three biological indicators were used to determine the effects of medical diagnostic low-dose x rays at 4, 8, 24, 48, and 72 h post-irradiation. These biological endpoints were mitochondrial membrane potential (ΔΨm), cell cycle, and apoptosis. Results indicated no changes in the ΔΨm, number of apoptotic cells, and cell cycle in lymphocytes exposed to these low doses of radiation, as compared to the corresponding non-irradiated lymphocytes at all harvest time-points. These results suggested that there were no harmful effects of the diagnostic low-dose x rays when human lymphocytes were exposed in an in vitro condition.
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Affiliation(s)
- Montree Tungjai
- *Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, 110 Intawaroroj Rd., Sripoom, Chiang Mai, 50200, Thailand; †Department of Pathology, Stony Brook University, Stony Brook, NY 11794-8691
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Pasquali F, Agrimonti C, Pagano L, Zappettini A, Villani M, Marmiroli M, White JC, Marmiroli N. Nucleo-mitochondrial interaction of yeast in response to cadmium sulfide quantum dot exposure. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:744-752. [PMID: 27890358 DOI: 10.1016/j.jhazmat.2016.11.053] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/16/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
Cell sensitivity to quantum dots (QDs) has been attributed to a cascade triggered by oxidative stress leading to apoptosis. The role and function of mitochondria in animal cells are well understood but little information is available on the complex genetic networks that regulate nucleo-mitochondrial interaction. The effect of CdS QD exposure in yeast Saccharomyces cerevisiae was assessed under conditions of limited lethality (<10%), using cell physiological and morphological endpoints. Whole-genomic array analysis and the screening of a deletion mutant library were also carried out. The results showed that QDs: increased the level of reactive oxygen species (ROS) and decreased the level of reduced vs oxidized glutathione (GSH/GSSG); reduced oxygen consumption and the abundance of respiratory cytochromes; disrupted mitochondrial membrane potentials and affected mitochondrial morphology. Exposure affected the capacity of cells to grow on galactose, which requires nucleo-mitochondrial involvement. However, QDs exposure did not materially induce respiratory deficient (RD) mutants but only RD phenocopies. All of these cellular changes were correlated with several key nuclear genes, including TOM5 and FKS1, involved in the maintenance of mitochondrial organization and function. The consequences of these cellular effects are discussed in terms of dysregulation of cell function in response to these "pathological mitochondria".
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Affiliation(s)
| | | | - Luca Pagano
- Department of Life Sciences, University of Parma, Parma, Italy; Stockbridge school of Agriculture, University of Massachusetts, Amherst, MA, USA; The Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Andrea Zappettini
- IMEM-CNR - Istituto dei Materiali per l'Elettronica ed il Magnetismo, Parma, Italy
| | - Marco Villani
- IMEM-CNR - Istituto dei Materiali per l'Elettronica ed il Magnetismo, Parma, Italy
| | - Marta Marmiroli
- Department of Life Sciences, University of Parma, Parma, Italy
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT, USA
| | - Nelson Marmiroli
- Department of Life Sciences, University of Parma, Parma, Italy; CINSA - Consorzio Interuniversitario Nazionale per le Scienze Ambientali, University of Parma, Parma, Italy.
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Obukhova EN, Mchedlov-Petrossyan NO, Vodolazkaya NA, Patsenker LD, Doroshenko AO, Marynin AI, Krasovitskii BM. Absorption, fluorescence, and acid-base equilibria of rhodamines in micellar media of sodium dodecyl sulfate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 170:138-144. [PMID: 27423469 DOI: 10.1016/j.saa.2016.07.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/27/2016] [Accepted: 07/02/2016] [Indexed: 06/06/2023]
Abstract
Rhodamine dyes are widely used as molecular probes in different fields of science. The aim of this paper was to ascertain to what extent the structural peculiarities of the compounds influence their absorption, emission, and acid-base properties under unified conditions. The acid-base dissociation (HR(+)⇄R+H(+)) of a series of rhodamine dyes was studied in sodium n-dodecylsulfate micellar solutions. In this media, the form R exists as a zwitterion R(±). The indices of apparent ionization constants of fifteen rhodamine cations HR(+) with different substituents in the xanthene moiety vary within the range of pKa(app)=5.04 to 5.53. The distinct dependence of emission of rhodamines bound to micelles on pH of bulk water opens the possibility of using them as fluorescent interfacial acid-base indicators.
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Affiliation(s)
- Elena N Obukhova
- Scientific-Technological Complex 'Institute for Single Crystals' of the National Academy of Sciences of Ukraine, Kharkov 61001, Ukraine
| | | | | | - Leonid D Patsenker
- Scientific-Technological Complex 'Institute for Single Crystals' of the National Academy of Sciences of Ukraine, Kharkov 61001, Ukraine
| | | | | | - Boris M Krasovitskii
- Scientific-Technological Complex 'Institute for Single Crystals' of the National Academy of Sciences of Ukraine, Kharkov 61001, Ukraine
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Zhang W, Zhang Z, Tung CH. Beyond chemotherapeutics: cisplatin as a temporary buckle to fabricate drug-loaded nanogels. Chem Commun (Camb) 2017; 53:779-782. [PMID: 27999837 PMCID: PMC5319414 DOI: 10.1039/c6cc08230k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A cisplatin templated nanogel with targeting capability was synthesized, inspired by cisplatin as a chemotherapeutic drug. After crosslinking the natural polysaccharide hyaluronan, a ligand for CD44, cisplatin could be removed by simple dialysis in a salt solution while the withheld drug remains entrapped.
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Affiliation(s)
- Weiqi Zhang
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, Cornell University, 413 East 69th Street, Box 290, New York, NY 10021, USA.
| | - Zhe Zhang
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, Cornell University, 413 East 69th Street, Box 290, New York, NY 10021, USA.
| | - Ching-Hsuan Tung
- Molecular Imaging Innovations Institute, Department of Radiology, Weill Cornell Medicine, Cornell University, 413 East 69th Street, Box 290, New York, NY 10021, USA.
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Sharma N, Reja SI, Gupta N, Bhalla V, Kaur D, Arora S, Kumar M. A highly selective fluorescent probe for Fe3+ in living cells: a stress induced cell based model study. Org Biomol Chem 2017; 15:1006-1012. [DOI: 10.1039/c6ob02209j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A rhodamine–phenanthroline conjugated fluorescent probe 4 has been designed and synthesized for selective sensing and imaging of endogenous Fe3+ ions in living cells under different stress conditions.
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Affiliation(s)
- Neetu Sharma
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Shahi Imam Reja
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Neha Gupta
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Vandana Bhalla
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar
- India
| | - Davinder Kaur
- Department of Botanical and Environmental Sciences
- Guru Nanak Dev University
- Amritsar
- India
| | - Saroj Arora
- Department of Botanical and Environmental Sciences
- Guru Nanak Dev University
- Amritsar
- India
| | - Manoj Kumar
- Department of Chemistry
- UGC Sponsored Centre for Advanced Studies-II
- Guru Nanak Dev University
- Amritsar
- India
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Nguyen D, Pham BT, Huynh V, Kim BJ, Pham NT, Bickley SA, Jones SK, Serelis A, Davey T, Such C, Hawkett BS. Monodispersed polymer encapsulated superparamagnetic iron oxide nanoparticles for cell labeling. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.064] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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40
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Kaur A, Jankowska K, Pilgrim C, Fraser ST, New EJ. Studies of Hematopoietic Cell Differentiation with a Ratiometric and Reversible Sensor of Mitochondrial Reactive Oxygen Species. Antioxid Redox Signal 2016; 24:667-79. [PMID: 26865422 PMCID: PMC4860629 DOI: 10.1089/ars.2015.6495] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIMS Chronic elevations in cellular redox state are known to result in the onset of various pathological conditions, but transient increases in reactive oxygen species (ROS)/reactive nitrogen species (RNS) are necessary for signal transduction and various physiological functions. There is a distinct lack of reversible fluorescent tools that can aid in studying and unraveling the roles of ROS/RNS in physiology and pathology by monitoring the variations in cellular ROS levels over time. In this work, we report the development of ratiometric fluorescent sensors that reversibly respond to changes in mitochondrial redox state. RESULTS Photophysical studies of the developed flavin-rhodamine redox sensors, flavin-rhodamine redox sensor 1 (FRR1) and flavin-rhodamine redox sensor 2 (FRR2), confirmed the reversible response of the probes upon reduction and re-oxidation over more than five cycles. The ratiometric output of FRR1 and FRR2 remained unaltered in the presence of other possible cellular interferants (metals and pH). Microscopy studies indicated clear mitochondrial localization of both probes, and FRR2 was shown to report the time-dependent increase of mitochondrial ROS levels after lipopolysaccharide stimulation in macrophages. Moreover, it was used to study the variations in mitochondrial redox state in mouse hematopoietic cells at different stages of embryonic development and maturation. INNOVATION This study provides the first ratiometric and reversible probes for ROS, targeted to the mitochondria, which reveal variations in mitochondrial ROS levels at different stages of embryonic and adult blood cell production. CONCLUSIONS Our results suggest that with their ratiometric and reversible outputs, FRR1 and FRR2 are valuable tools for the future study of oxidative stress and its implications in physiology and pathology. Antioxid. Redox Signal. 24, 667-679.
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Affiliation(s)
- Amandeep Kaur
- 1 School of Chemistry, The University of Sydney , Sydney, Australia
| | | | - Chelsea Pilgrim
- 2 Discipline of Physiology, School of Medical Sciences, The University of Sydney , Sydney, Australia
| | - Stuart T Fraser
- 2 Discipline of Physiology, School of Medical Sciences, The University of Sydney , Sydney, Australia
| | - Elizabeth J New
- 1 School of Chemistry, The University of Sydney , Sydney, Australia
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Wang L, Yuan L, Zeng X, Peng J, Ni Y, Er JC, Xu W, Agrawalla BK, Su D, Kim B, Chang YT. A Multisite-Binding Switchable Fluorescent Probe for Monitoring Mitochondrial ATP Level Fluctuation in Live Cells. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201510003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Lu Wang
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
| | - Lin Yuan
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 (PR China
| | - Xian Zeng
- Department of Pharmacy, National; University of Singapore; Singapore 117543 Singapore
| | - Juanjuan Peng
- Laboratory of Bioimaging Probe Development; Singapore Bioimaging Consortium; Singapore 138667 Singapore
| | - Yong Ni
- Laboratory of Bioimaging Probe Development; Singapore Bioimaging Consortium; Singapore 138667 Singapore
| | - Jun Cheng Er
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
| | - Wang Xu
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
| | - Bikram Keshari Agrawalla
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
| | - Dongdong Su
- Laboratory of Bioimaging Probe Development; Singapore Bioimaging Consortium; Singapore 138667 Singapore
| | - Beomsue Kim
- Laboratory of Bioimaging Probe Development; Singapore Bioimaging Consortium; Singapore 138667 Singapore
| | - Young-Tae Chang
- Department of Chemistry and Medicinal Chemistry Programme; National University of Singapore; Singapore 117543 Singapore
- Laboratory of Bioimaging Probe Development; Singapore Bioimaging Consortium; Singapore 138667 Singapore
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42
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Wang L, Yuan L, Zeng X, Peng J, Ni Y, Er JC, Xu W, Agrawalla BK, Su D, Kim B, Chang YT. A Multisite-Binding Switchable Fluorescent Probe for Monitoring Mitochondrial ATP Level Fluctuation in Live Cells. Angew Chem Int Ed Engl 2015; 55:1773-6. [PMID: 26676712 DOI: 10.1002/anie.201510003] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 11/25/2015] [Indexed: 11/09/2022]
Abstract
Adenosine triphosphate (ATP), commonly produced in mitochondria, is required by almost all the living organisms; thus fluorescent probes for monitoring mitochondrial ATP levels fluctuation are essential and highly desired. Herein, we report a multisite-binding switchable fluorescent probe, ATP-Red 1, which selectively and rapidly responds to intracellular concentrations of ATP. Live-cell imaging indicated that ATP-Red 1 mainly localized to mitochondria with good biocompatibility and membrane penetration. In particular, with the help of ATP-Red 1, we successfully observed not only the decreased mitochondrial ATP levels in the presence of KCN and starvation state, but also the increased mitochondrial ATP levels in the early stage of cell apoptosis. These results indicate that ATP-Red 1 is a useful tool for investigating ATP-relevant biological processes.
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Affiliation(s)
- Lu Wang
- Department of Chemistry and Medicinal Chemistry Programme, National University of Singapore, Singapore, 117543, Singapore
| | - Lin Yuan
- Department of Chemistry and Medicinal Chemistry Programme, National University of Singapore, Singapore, 117543, Singapore. .,State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082 (PR, China.
| | - Xian Zeng
- Department of Pharmacy, National, University of Singapore, Singapore, 117543, Singapore
| | - Juanjuan Peng
- Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Singapore, 138667, Singapore
| | - Yong Ni
- Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Singapore, 138667, Singapore
| | - Jun Cheng Er
- Department of Chemistry and Medicinal Chemistry Programme, National University of Singapore, Singapore, 117543, Singapore
| | - Wang Xu
- Department of Chemistry and Medicinal Chemistry Programme, National University of Singapore, Singapore, 117543, Singapore
| | - Bikram Keshari Agrawalla
- Department of Chemistry and Medicinal Chemistry Programme, National University of Singapore, Singapore, 117543, Singapore
| | - Dongdong Su
- Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Singapore, 138667, Singapore
| | - Beomsue Kim
- Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Singapore, 138667, Singapore
| | - Young-Tae Chang
- Department of Chemistry and Medicinal Chemistry Programme, National University of Singapore, Singapore, 117543, Singapore. .,Laboratory of Bioimaging Probe Development, Singapore Bioimaging Consortium, Singapore, 138667, Singapore.
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43
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Kim S, Yoo Y, Kim H, Lee E, Lee JY. Reduction of graphene oxide/alginate composite hydrogels for enhanced adsorption of hydrophobic compounds. NANOTECHNOLOGY 2015; 26:405602. [PMID: 26377443 DOI: 10.1088/0957-4484/26/40/405602] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Carbon-based materials, consisting of graphene oxide (GO) or reduced GO (rGO), possess unique abilities to interact with various molecules. In particular, rGO materials hold great promise for adsorption and delivery applications of hydrophobic molecules. However, conventional production and/or usage of rGO in aqueous solution often causes severe aggregation due to its low water solubility and thus difficulties in handling and applications. In our study, to prevent the severe aggregation of GO during reduction and to achieve a high adsorption capacity with hydrophobic compounds, GO/alginate composite hydrogels were first prepared and then reduced in an aqueous ascorbic acid solution at 37 °C. Adsorption studies with a model hydrophobic substance, rhodamine B, revealed that the reduced composite hydrogels are more highly absorbent than the unreduced hydrogels. In addition, the adsorption properties of the composite hydrogels, which are consequences of hydrophobic and ionic interactions, could be modulated by controlling the degree of reduction for the adsorption of different molecules. The composite hydrogels embedding rGO can be very useful in applications related to drug delivery, waste treatment, and biosensing.
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Affiliation(s)
- Semin Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 500-715, Korea
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44
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Moreau D, Lefort C, Burke R, Leveque P, O’Connor RP. Rhodamine B as an optical thermometer in cells focally exposed to infrared laser light or nanosecond pulsed electric fields. BIOMEDICAL OPTICS EXPRESS 2015; 6:4105-17. [PMID: 26504658 PMCID: PMC4605067 DOI: 10.1364/boe.6.004105] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 09/19/2015] [Accepted: 09/22/2015] [Indexed: 05/11/2023]
Abstract
The temperature-dependent fluorescence property of Rhodamine B was used to measure changes in temperature at the cellular level induced by either infrared laser light exposure or high intensity, ultrashort pulsed electric fields. The thermal impact of these stimuli were demonstrated at the cellular level in time and contrasted with the change in temperature observed in the extracellular bath. The method takes advantage of the temperature sensitivity of the fluorescent dye Rhodamine B which has a quantum yield linearly dependent on temperature. The thermal effects of different temporal pulse applications of infrared laser light exposure and of nanosecond pulsed electric fields were investigated. The temperature increase due to the application of nanosecond pulsed electric fields was demonstrated at the cellular level.
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Affiliation(s)
- David Moreau
- Univ. Limoges, CNRS, XLIM, UMR 7252, F-87000 Limoges, France
| | - Claire Lefort
- Univ. Limoges, CNRS, XLIM, UMR 7252, F-87000 Limoges, France
| | - Ryan Burke
- Univ. Limoges, CNRS, XLIM, UMR 7252, F-87000 Limoges, France
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45
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Gamberi T, Fiaschi T, Modesti A, Massai L, Messori L, Balzi M, Magherini F. Evidence that the antiproliferative effects of auranofin in Saccharomyces cerevisiae arise from inhibition of mitochondrial respiration. Int J Biochem Cell Biol 2015; 65:61-71. [DOI: 10.1016/j.biocel.2015.05.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 04/17/2015] [Accepted: 05/15/2015] [Indexed: 02/04/2023]
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46
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Kwak JH, Yang Z, Yoon B, He Y, Uhm S, Shin HC, Lee BH, Yoo YC, Lee KB, Han SY, Kim JS. Blood-brain barrier-permeable fluorone-labeled dieckols acting as neuronal ER stress signaling inhibitors. Biomaterials 2015; 61:52-60. [DOI: 10.1016/j.biomaterials.2015.04.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/27/2015] [Accepted: 04/30/2015] [Indexed: 02/09/2023]
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47
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Trencsényi G, Kertész I, Krasznai ZT, Máté G, Szalóki G, Szabó Judit P, Kárpáti L, Krasznai Z, Márián T, Goda K. 2'[(18)F]-fluoroethylrhodamine B is a promising radiotracer to measure P-glycoprotein function. Eur J Pharm Sci 2015; 74:27-35. [PMID: 25857708 DOI: 10.1016/j.ejps.2015.03.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 03/12/2015] [Accepted: 03/31/2015] [Indexed: 12/21/2022]
Abstract
In vivo detection of the emergence of P-glycoprotein (Pgp) mediated multidrug resistance in tumors could be beneficial for patients treated with anticancer drugs. PET technique in combination with appropriate radiotracers could be the most convenient method for detection of Pgp function. Rhodamine derivatives are validated fluorescent probes for measurement of mitochondrial membrane potential and also Pgp function. The aim of this study was to investigate whether 2'[(18)F]-fluoroethylrhodamine B ((18)FRB) a halogenated rhodamine derivative previously synthesized for PET assessment of myocardial perfusion preserved its Pgp substrate character. ATPase assay as well as accumulation experiments carried out using Pgp(+) and Pgp(-) human gynecologic (A2780/A2780(AD) and KB-3-1/KB-V1) and a mouse fibroblast cell pairs (NIH 3T3 and NIH 3T3 MDR1) were applied to study the interaction of (18)FRB with Pgp. ATPase assay proved that (18)FRB is a high affinity substrate of Pgp. Pgp(-) cells accumulated the (18)FRB rapidly in accordance with its lipophilic character. Dissipation of the mitochondrial proton gradient by a proton ionophore CCCP decreased the accumulation of rhodamine 123 (R123) and (18)FRB into Pgp(-) cells. Pgp(+) cells exhibited very low R123 and (18)FRB accumulation (around 1-8% of the Pgp(-) cell lines) which was not sensitive to the mitochondrial proton gradient; rather it was increased by the Pgp inhibitor cyclosporine A (CsA). Based on the above data we conclude that (18)FRB is a high affinity Pgp substrate and consequently a potential PET tracer to detect multidrug resistant tumors as well as the function of physiological barriers expressing Pgp.
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Affiliation(s)
- György Trencsényi
- Department of Nuclear Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - István Kertész
- Department of Nuclear Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Zoárd T Krasznai
- Department of Obstetrics and Gynecology, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Gábor Máté
- Department of Nuclear Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Gábor Szalóki
- Department of Biophysics and Cell Biology, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - P Szabó Judit
- Department of Nuclear Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Levente Kárpáti
- Department of Nuclear Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Zoltán Krasznai
- Department of Biophysics and Cell Biology, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Teréz Márián
- Department of Nuclear Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary.
| | - Katalin Goda
- Department of Biophysics and Cell Biology, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
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48
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Apostolova N, Rovira-Llopis S, Baldoví HG, Navalon S, Asiri AM, Victor VM, Garcia H, Herance JR. Ceria nanoparticles with rhodamine B as a powerful theranostic agent against intracellular oxidative stress. RSC Adv 2015. [DOI: 10.1039/c5ra12794g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ceria nanoparticles with rhodamine B (RhB-CeNPs) are a new class of biocompatible nanomaterial with antioxidant activity and sensor capacity against oxidant species both in solution and in human cells.
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Affiliation(s)
| | - Susana Rovira-Llopis
- Service of Endocrinology
- University Hospital Dr Peset
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO) and CIBERehd
- Valencia
- Spain
| | - Herme G. Baldoví
- Instituto Universitario de Tecnología Química CSIC-UPV
- Univ. Politécnica de Valencia
- Valencia
- Spain
| | - Sergio Navalon
- Instituto Universitario de Tecnología Química CSIC-UPV
- Univ. Politécnica de Valencia
- Valencia
- Spain
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research
- King Abdulaziz University
- Jeddah
- Saudi Arabia
| | - Victor M. Victor
- Service of Endocrinology
- University Hospital Dr Peset
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO) and CIBERehd
- Valencia
- Spain
| | - Hermenegildo Garcia
- Instituto Universitario de Tecnología Química CSIC-UPV
- Univ. Politécnica de Valencia
- Valencia
- Spain
- Center of Excellence for Advanced Materials Research
| | - Jose Raul Herance
- Service of Endocrinology
- University Hospital Dr Peset
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO) and CIBERehd
- Valencia
- Spain
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49
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Stylianou A, Yova D, Alexandratou E. Investigation of the influence of UV irradiation on collagen thin films by AFM imaging. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:455-68. [PMID: 25491851 DOI: 10.1016/j.msec.2014.09.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 08/21/2014] [Accepted: 09/08/2014] [Indexed: 01/06/2023]
Abstract
Collagen is the major fibrous extracellular matrix protein and due to its unique properties, it has been widely used as biomaterial, scaffold and cell-substrate. The aim of the paper was to use Atomic Force Microscopy (AFM) in order to investigate well-characterized collagen thin films after ultraviolet light (UV) irradiation. The films were also used as in vitro culturing substrates in order to investigate the UV-induced alterations to fibroblasts. A special attention was given in the alteration on collagen D-periodicity. For short irradiation times, spectroscopy (fluorescence/absorption) studies demonstrated that photodegradation took place and AFM imaging showed alterations in surface roughness. Also, it was highlighted that UV-irradiation had different effects when it was applied on collagen solution than on films. Concerning fibroblast culturing, it was shown that fibroblast behavior was affected after UV irradiation of both collagen solution and films. Furthermore, after a long irradiation time, collagen fibrils were deformed revealing that collagen fibrils are consisting of multiple shells and D-periodicity occurred on both outer and inner shells. The clarification of the effects of UV light on collagen and the induced modifications of cell behavior on UV-irradiated collagen-based surfaces will contribute to the better understanding of cell-matrix interactions in the nanoscale and will assist in the appropriate use of UV light for sterilizing and photo-cross-linking applications.
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Affiliation(s)
- Andreas Stylianou
- Biomedical Optics and Applied Biophysics Laboratory, Division of Electromagnetics, Electrooptics and Electronic Materials, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Polytechniou, Athens 15780 Greece.
| | - Dido Yova
- Biomedical Optics and Applied Biophysics Laboratory, Division of Electromagnetics, Electrooptics and Electronic Materials, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Polytechniou, Athens 15780 Greece
| | - Eleni Alexandratou
- Biomedical Optics and Applied Biophysics Laboratory, Division of Electromagnetics, Electrooptics and Electronic Materials, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Polytechniou, Athens 15780 Greece
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50
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Chen X, Wei S, Ma Y, Lu J, Niu G, Xue Y, Chen X, Yang F. Quantitative proteomics analysis identifies mitochondria as therapeutic targets of multidrug-resistance in ovarian cancer. Am J Cancer Res 2014; 4:1164-75. [PMID: 25285166 PMCID: PMC4183995 DOI: 10.7150/thno.8502] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 03/14/2014] [Indexed: 12/31/2022] Open
Abstract
Doxorubicin is a widely used chemotherapeutic agent for the treatment of a variety of solid tumors. However, resistance to this anticancer drug is a major obstacle to the effective treatment of tumors. As mitochondria play important roles in cell life and death, we anticipate that mitochondria may be related to drug resistance. Here, stable isotope labeling by amino acids in cell culture (SILAC)-based quantitative proteomic strategy was applied to compare mitochondrial protein expression in doxorubicin sensitive OVCAR8 cells and its doxorubicin-resistant variant NCI_ADR/RES cells. A total of 2085 proteins were quantified, of which 122 proteins displayed significant changes in the NCI_ADR/RES cells. These proteins participated in a variety of cell processes including cell apoptosis, substance metabolism, transport, detoxification and drug metabolism. Then qRT-PCR and western blot were applied to validate the differentially expressed proteins quantified by SILAC. Further functional studies with RNAi demonstrated TOP1MT, a mitochondrial protein participated in DNA repair, was involved in doxorubicin resistance in NCI_ADR/RES cells. Besides the proteomic study, electron microscopy and fluorescence analysis also observed that mitochondrial morphology and localization were greatly altered in NCI_ADR/RES cells. Mitochondrial membrane potential was also decreased in NCI_ADR/RES cells. All these results indicate that mitochondrial function is impaired in doxorubicin-resistant cells and mitochondria play an important role in doxorubicin resistance. This research provides some new information about doxorubicin resistance, indicating that mitochondria could be therapeutic targets of doxorubicin resistance in ovarian cancer cells.
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