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Umar S, Samokhvalov A. Encapsulation of Gemcitabine on Porphyrin Aluminum Metal-Organic Framework by Mechano-Chemistry, Delayed Drug Release and Cytotoxicity to Pancreatic Cancer PANC-1 Cells. Molecules 2024; 29:3189. [PMID: 38999141 PMCID: PMC11243361 DOI: 10.3390/molecules29133189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/23/2024] [Accepted: 06/27/2024] [Indexed: 07/14/2024] Open
Abstract
Gemcitabine is a widely used antimetabolite drug of pyrimidine structure, which can exist as a free-base molecular form (Gem). The encapsulated forms of medicinal drugs are of interest for delayed and local drug release. We utilized, for the first time, a novel approach of mechano-chemistry by liquid-assisted grinding (LAG) to encapsulate Gem on a "matrix" of porphyrin aluminum metal-organic framework Al-MOF-TCPPH2 (compound 2). The chemical bonding of Gem to compound 2 was studied by ATR-FTIR spectroscopy and powder XRD. The interaction involves the C=O group of Gem molecules, which indicates the formation of the encapsulation complex in the obtained composite. Further, the delayed release of Gem from the composite was studied to phosphate buffered saline (PBS) at 37 °C using an automated drug dissolution apparatus equipped with an autosampler. The concentration of the released drug was determined by HPLC-UV analysis. The composite shows delayed release of Gem due to the bonded form and constant concentration thereafter, while pure Gem shows quick dissolution in less than 45 min. Delayed release of Gem drug from the composite follows the kinetic pseudo-first-order rate law. Further, for the first time, the mechanism of delayed release of Gem was assessed by the variable stirring speed of drug release media, and kinetic rate constant k was found to decrease when stirring speed is decreased (diffusion control). Finally, the prolonged time scale of toxicity of Gem to pancreatic cancer PANC-1 cells was studied by continuous measurements of proliferation (growth) for 6 days, using the xCELLigence real-time cell analyzer (RTCA), for the composite vs. pure drug, and their differences indicate delayed drug release. Aluminum metal-organic frameworks are new and promising materials for the encapsulation of gemcitabine and related small-molecule antimetabolites for controlled delayed drug release and potential use in drug-eluting implants.
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Affiliation(s)
| | - Alexander Samokhvalov
- Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, MD 21251, USA
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Elbialy A, Kappala D, Desai D, Wang P, Fadiel A, Wang SJ, Makary MS, Lenobel S, Sood A, Gong M, Dason S, Shabsigh A, Clinton S, Parwani AV, Putluri N, Shvets G, Li J, Liu X. Patient-Derived Conditionally Reprogrammed Cells in Prostate Cancer Research. Cells 2024; 13:1005. [PMID: 38920635 PMCID: PMC11201841 DOI: 10.3390/cells13121005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/27/2024] Open
Abstract
Prostate cancer (PCa) remains a leading cause of mortality among American men, with metastatic and recurrent disease posing significant therapeutic challenges due to a limited comprehension of the underlying biological processes governing disease initiation, dormancy, and progression. The conventional use of PCa cell lines has proven inadequate in elucidating the intricate molecular mechanisms driving PCa carcinogenesis, hindering the development of effective treatments. To address this gap, patient-derived primary cell cultures have been developed and play a pivotal role in unraveling the pathophysiological intricacies unique to PCa in each individual, offering valuable insights for translational research. This review explores the applications of the conditional reprogramming (CR) cell culture approach, showcasing its capability to rapidly and effectively cultivate patient-derived normal and tumor cells. The CR strategy facilitates the acquisition of stem cell properties by primary cells, precisely recapitulating the human pathophysiology of PCa. This nuanced understanding enables the identification of novel therapeutics. Specifically, our discussion encompasses the utility of CR cells in elucidating PCa initiation and progression, unraveling the molecular pathogenesis of metastatic PCa, addressing health disparities, and advancing personalized medicine. Coupled with the tumor organoid approach and patient-derived xenografts (PDXs), CR cells present a promising avenue for comprehending cancer biology, exploring new treatment modalities, and advancing precision medicine in the context of PCa. These approaches have been used for two NCI initiatives (PDMR: patient-derived model repositories; HCMI: human cancer models initiatives).
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Affiliation(s)
- Abdalla Elbialy
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Computational Oncology Unit, The University of Chicago Comprehensive Cancer Center, 900 E 57th Street, KCBD Bldg., STE 4144, Chicago, IL 60637, USA
| | - Deepthi Kappala
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
| | - Dhruv Desai
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
| | - Peng Wang
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
| | - Ahmed Fadiel
- Computational Oncology Unit, The University of Chicago Comprehensive Cancer Center, 900 E 57th Street, KCBD Bldg., STE 4144, Chicago, IL 60637, USA
| | - Shang-Jui Wang
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Department of Radiation Oncology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Mina S. Makary
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Division of Vascular and Interventional Radiology, Department of Radiology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Scott Lenobel
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Division of Musculoskeletal Imaging, Department of Radiology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Akshay Sood
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Department of Urology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Michael Gong
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Department of Urology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Shawn Dason
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Department of Urology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Ahmad Shabsigh
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Department of Urology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Steven Clinton
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
| | - Anil V. Parwani
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Departments of Pathology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Nagireddy Putluri
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Gennady Shvets
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14850, USA
| | - Jenny Li
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Departments of Pathology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Xuefeng Liu
- OSU Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (A.E.)
- Departments of Pathology, Urology, and Radiation Oncology, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
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Myoli A, Choene M, Kappo AP, Madala NE, van der Hooft JJJ, Tugizimana F. Charting the Cannabis plant chemical space with computational metabolomics. Metabolomics 2024; 20:62. [PMID: 38796627 PMCID: PMC11127828 DOI: 10.1007/s11306-024-02125-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/02/2024] [Indexed: 05/28/2024]
Abstract
INTRODUCTION The chemical classification of Cannabis is typically confined to the cannabinoid content, whilst Cannabis encompasses diverse chemical classes that vary in abundance among all its varieties. Hence, neglecting other chemical classes within Cannabis strains results in a restricted and biased comprehension of elements that may contribute to chemical intricacy and the resultant medicinal qualities of the plant. OBJECTIVES Thus, herein, we report a computational metabolomics study to elucidate the Cannabis metabolic map beyond the cannabinoids. METHODS Mass spectrometry-based computational tools were used to mine and evaluate the methanolic leaf and flower extracts of two Cannabis cultivars: Amnesia haze (AMNH) and Royal dutch cheese (RDC). RESULTS The results revealed the presence of different chemical compound classes including cannabinoids, but extending it to flavonoids and phospholipids at varying distributions across the cultivar plant tissues, where the phenylpropnoid superclass was more abundant in the leaves than in the flowers. Therefore, the two cultivars were differentiated based on the overall chemical content of their plant tissues where AMNH was observed to be more dominant in the flavonoid content while RDC was more dominant in the lipid-like molecules. Additionally, in silico molecular docking studies in combination with biological assay studies indicated the potentially differing anti-cancer properties of the two cultivars resulting from the elucidated chemical profiles. CONCLUSION These findings highlight distinctive chemical profiles beyond cannabinoids in Cannabis strains. This novel mapping of the metabolomic landscape of Cannabis provides actionable insights into plant biochemistry and justifies selecting certain varieties for medicinal use.
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Affiliation(s)
- Akhona Myoli
- Department of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
| | - Mpho Choene
- Department of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
| | - Abidemi Paul Kappo
- Department of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
| | | | - Justin J J van der Hooft
- Department of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa.
- Bioinformatics Group, Wageningen University, Wageningen, 6708 PB, the Netherlands.
| | - Fidele Tugizimana
- Department of Biochemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa.
- International Research and Development Division, Omnia Group, Ltd., Bryanston, Johannesburg, 2021, South Africa.
- National Institute for Theoretical and Computational Sciences, Johannesburg, South Africa.
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Mikheeva AM, Bogomolov MA, Gasca VA, Sementsov MV, Spirin PV, Prassolov VS, Lebedev TD. Improving the power of drug toxicity measurements by quantitative nuclei imaging. Cell Death Discov 2024; 10:181. [PMID: 38637526 PMCID: PMC11026393 DOI: 10.1038/s41420-024-01950-3] [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: 01/16/2024] [Revised: 03/29/2024] [Accepted: 04/08/2024] [Indexed: 04/20/2024] Open
Abstract
Imaging-based anticancer drug screens are becoming more prevalent due to development of automated fluorescent microscopes and imaging stations, as well as rapid advancements in image processing software. Automated cell imaging provides many benefits such as their ability to provide high-content data, modularity, dynamics recording and the fact that imaging is the most direct way to access cell viability and cell proliferation. However, currently most publicly available large-scale anticancer drugs screens, such as GDSC, CTRP and NCI-60, provide cell viability data measured by assays based on colorimetric or luminometric measurements of NADH or ATP levels. Although such datasets provide valuable data, it is unclear how well drug toxicity measurements can be integrated with imaging data. Here we explored the relations between drug toxicity data obtained by XTT assay, two quantitative nuclei imaging methods and trypan blue dye exclusion assay using a set of four cancer cell lines with different morphologies and 30 drugs with different mechanisms of action. We show that imaging-based approaches provide high accuracy and the differences between results obtained by different methods highly depend on drug mechanism of action. Selecting AUC metrics over IC50 or comparing data where significantly drugs reduced cell numbers noticeably improves consistency between methods. Using automated cell segmentation protocols we analyzed mitochondria activity in more than 11 thousand drug-treated cells and showed that XTT assay produces unreliable data for CDK4/6, Aurora A, VEGFR and PARP inhibitors due induced cell size growth and increase in individual mitochondria activity. We also explored several benefits of image-based analysis such as ability to monitor cell number dynamics, dissect changes in total and individual mitochondria activity from cell proliferation, and ability to identify chromatin remodeling drugs. Finally, we provide a web tool that allows comparing results obtained by different methods.
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Affiliation(s)
- Alesya M Mikheeva
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
- Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
| | - Mikhail A Bogomolov
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
- Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
| | - Valentina A Gasca
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
- Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
| | - Mikhail V Sementsov
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
- Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
| | - Pavel V Spirin
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
| | - Vladimir S Prassolov
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia
| | - Timofey D Lebedev
- Department of Cancer Cell Biology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia.
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 32 Vavilova str., Moscow, 119991, Russia.
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Sattari Z, Kjaerup RB, Rasmussen MK, Yue Y, Poulsen NA, Larsen LB, Purup S. Bovine mammary epithelial cells can grow and express milk protein synthesis genes at reduced fetal bovine serum concentration. Cell Biol Int 2024; 48:473-482. [PMID: 38173144 DOI: 10.1002/cbin.12116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/10/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024]
Abstract
Milk proteins produced by lactating cells isolated from bovine mammary tissue can offer a sustainable solution to the high protein demand of a global growing population. Serum is commonly added to culture systems to provide compounds necessary for optimal growth and function of the cells. However, in a cellular agricultural context, its usage is desired to be decreased. This study aims at examining the minimum level of fetal bovine serum (FBS) required for the growth and functionality of bovine mammary epithelial cells (MECs). The cells were isolated from dairy cows in early and mid-lactation and cultured in reduced concentrations of FBS (10%, 5%, 1.25%, and 0%). Real-time cell analysis showed a significant effect of lactation stage on growth rate and 5% FBS resulted in similar growth rate as 10% while 0% resulted in the lowest. The effect of reducing FBS on cell functionality was examined by studying the expressions of selected marker genes involved in milk protein and fat synthesis, following differentiation. The gene expressions were not affected by the level of FBS. A reduction of FBS in the culture system of MEC, at least down to 5%, does not assert any negative effect on the growth and expression levels of studied genes. As the first attempt in developing an in-vitro model for milk component production using MEC, our results demonstrate the potential of MEC to endure FBS-reduced conditions.
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Affiliation(s)
- Zahra Sattari
- Department of Food Science, Aarhus University, Aarhus N, Denmark
| | | | | | - Yuan Yue
- Department of Animal and Veterinary Sciences, Aarhus University, Tjele, Denmark
| | | | | | - Stig Purup
- Department of Animal and Veterinary Sciences, Aarhus University, Tjele, Denmark
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Shi J, Ding F, Dai D, Song X, Wu X, Yan D, Han X, Tao G, Dai W. Noxa inhibits oncogenesis through ZNF519 in gastric cancer and is suppressed by hsa-miR-200b-3p. Sci Rep 2024; 14:6568. [PMID: 38503887 PMCID: PMC10951337 DOI: 10.1038/s41598-024-57099-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 03/14/2024] [Indexed: 03/21/2024] Open
Abstract
While Phorbol-12-myristate-13-acetate-induced protein 1 (Noxa/PMAIP1) assumes a pivotal role in numerous tumors, its clinical implications and underlying mechanisms of gastric cancer (GC) are yet enigmatic. In this investigation, our primary objective was to scrutinize the clinical relevance and potential mechanisms of Noxa in gastric cancer. Immunohistochemical analysis was conducted on tissue microarrays comprising samples from a meticulously characterized cohort of 84 gastric cancer patients, accompanied by follow-up data, to assess the expression of Noxa. Additionally, Noxa expression levels in gastric cancer clinical samples and cell lines were measured through quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analysis. The effect of Noxa expression on the prognosis of patients with gastric cancer was evaluated using Kaplan-Meier survival. Further insight into the role of Noxa in driving gastric cancer progression was gained through an array of experimental techniques, including cell viability assays (CCK8), plate cloning assays, transwell assays, scratch assays, and real-time cell analysis (RTCA). Potential upstream microRNAs (miRNAs) that might modulate Noxa were identified through rigorous bioinformatics analysis, substantiated by luciferase reporter assays and Western blot experiments. Additionally, we utilized RNA sequencing, qRT-PCR, and Western blot to identify proteins binding to Noxa and potential downstream target. Finally, we utilized BALB/c nude mice to explore the role of Noxa in vivo. Our investigation unveiled a marked downregulation of Noxa expression in gastric cancer and underscored its significance as a pivotal prognostic factor influencing overall survival (OS). Noxa overexpression exerted a substantial inhibitory effect on the proliferation, migration and invasion of GC cells. Bioinformatic analysis and dual luciferase reporter assays unveiled the capacity of hsa-miR-200b-3p to interact with the 3'-UTR of Noxa mRNA, thereby orchestrating a downregulation of Noxa expression in vitro, consequently promoting tumor progression in GC. Our transcriptome analysis, coupled with mechanistic validation, elucidated a role for Noxa in modulating the expression of ZNF519 in the Mitophagy-animal pathway. The depletion of ZNF519 effectively reversed the oncogenic attributes induced by Noxa. Upregulation of Noxa expression suppressed the tumorigenesis of GC in vivo. The current investigation sheds light on the pivotal role of the hsa-miR-200b-3p/Noxa/ZNF519 axis in elucidating the pathogenesis of gastric cancer, offering a promising avenue for targeted therapeutic interventions in the management of this challenging malignancy.
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Affiliation(s)
- Jin Shi
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Fan Ding
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Dezhu Dai
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Xudong Song
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Xu Wu
- Department of Vascular, Huaian Hospital Affiliated to Xuzhou Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Dongsheng Yan
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Xiao Han
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China
| | - Guoquan Tao
- Department of Gastrointestinal Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China.
| | - Weijie Dai
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, Jiangsu, 223300, People's Republic of China.
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Abubaker M, Greaney A, Newport D, Mulvihill JJE. Characterization of primary human leptomeningeal cells in 2D culture. Heliyon 2024; 10:e26744. [PMID: 38434413 PMCID: PMC10906397 DOI: 10.1016/j.heliyon.2024.e26744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024] Open
Abstract
Maintaining the integrity of brain barriers is critical for a healthy central nervous system. While extensive research has focused on the blood-brain barrier (BBB) of the brain vasculature and blood-cerebrospinal fluid barrier (BCSFB) of the choroid plexus, the barriers formed by the meninges have not received as much attention. These membranes create a barrier between the brain and cerebrospinal fluid (CSF), as well as between CSF and blood. Recent studies have revealed that this barrier has been implicated in the development of neurological and immunological disorders. In order to gain a deeper comprehension of the functioning and significance of the meningeal barriers, sophisticated models of these barriers, need to be created. The aim of this paper is to investigate the characteristics of commercially available primary leptomeningeal cells (LMCs) that form the meningeal barriers, in a cultured environment, including their morphology, proteomics, and barrier properties, and to determine whether passaging of these cells affects their behaviour in comparison to their in vivo state. The results indicate that higher passage numbers significantly alter the morphology and protein localisation and expression of the LMCs. Furthermore, the primary cell culture co-stained for S100A6 and E-cadherin suggesting it is a co-culture of both pial and arachnoid cells. Additionally, cultured LMCs showed an increase in vimentin and cytokeratin expression and a lack of junctional proteins localisation on the cell membrane, which could suggest loss of epithelial properties due to culture, preventing barrier formation. This study shows that the LMCs may be a co-culture of pial and arachnoid cells, that the optimal LMC passage range is between passages two and five for experimentation and that the primary human LMCs form a weak barrier when in culture.
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Affiliation(s)
- Mannthalah Abubaker
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
| | - Aisling Greaney
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
| | - David Newport
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
| | - John J E Mulvihill
- Bernal Institute, University of Limerick, Castletroy, Limerick, Ireland
- School of Engineering, University of Limerick, Castletroy, Limerick, Ireland
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Repo PE, Backlund MP, Kivelä TT, Turunen JA. Functional assay for assessment of pathogenicity of BAP1 variants. Hum Mol Genet 2024; 33:426-434. [PMID: 37956408 PMCID: PMC10877462 DOI: 10.1093/hmg/ddad193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND Pathogenic germline variants in BRCA1-Associated Protein 1 (BAP1) cause BAP1 tumor predisposition syndrome (BAP1-TPDS). Carriers run especially a risk of uveal (UM) and cutaneous melanoma, malignant mesothelioma, and clear cell renal carcinoma. Approximately half of increasingly reported BAP1 variants lack accurate classification. Correct interpretation of pathogenicity can improve prognosis of the patients through tumor screening with better understanding of BAP1-TPDS. METHODS We edited five rare BAP1 variants with differing functional characteristics identified from patients with UM in HAP1 cells using CRISPR-Cas9 and assayed their effect on cell adhesion/spreading (at 4 h) and proliferation (at 48 h), measured as cell index (CI), using xCELLigence real-time analysis system. RESULTS In BAP1 knockout HAP1 cultures, cell number was half of wild type (WT) cultures at 48 h (p = 0.00021), reaching confluence later, and CI was 78% reduced (p < 0.0001). BAP1-TPDS-associated null variants c.67+1G>T and c.1780_1781insT, and a likely pathogenic missense variant c.281A>G reduced adhesion (all p ≤ 0.015) and proliferation by 74%-83% (all p ≤ 0.032). Another likely pathogenic missense variant c.680G>A reduced both by at least 50% (all p ≤ 0.032), whereas cells edited with likely benign one c.1526C>T grew similarly to WT. CONCLUSIONS BAP1 is essential for optimal fitness of HAP1 cells. Pathogenic and likely pathogenic BAP1 variants reduced cell fitness, reflected in adhesion/spreading and proliferation properties. Further, moderate effects were quantifiable. Variant modelling in HAP1 with CRISPR-Cas9 enabled functional analysis of coding and non-coding region variants in an endogenous expression system.
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Affiliation(s)
- Pauliina E Repo
- Eye Genetics Group, Folkhälsan Research Center, Biomedicum Helsinki, Haartmaninkatu 8, FI-00290, Helsinki, Finland
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 4 C, PL220, FI-00029 HUS, Helsinki, Finland
| | - Michael P Backlund
- Eye Genetics Group, Folkhälsan Research Center, Biomedicum Helsinki, Haartmaninkatu 8, FI-00290, Helsinki, Finland
| | - Tero T Kivelä
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 4 C, PL220, FI-00029 HUS, Helsinki, Finland
| | - Joni A Turunen
- Eye Genetics Group, Folkhälsan Research Center, Biomedicum Helsinki, Haartmaninkatu 8, FI-00290, Helsinki, Finland
- Ophthalmic Genetics and Rare Eye Diseases Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Haartmaninkatu 4 C, PL220, FI-00029 HUS, Helsinki, Finland
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Sliman YA, Samoylenkova NS, Antipova OM, Brylev VA, Veryutin DA, Sapozhnikova KA, Alekseeva AI, Pronin IN, Kopylov AM, Pavlova GV. [Covalently conjugated DNA aptamer with doxorubicin as in vitro model for effective targeted drug delivery to human glioblastoma tumor cells]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2024; 88:48-55. [PMID: 38334730 DOI: 10.17116/neiro20248801148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Targeted delivery of chemotherapeutic agents with aptamers is a very effective method increasing therapeutic index compared to non-targeted drugs. OBJECTIVE To study the effectiveness of in vitro therapeutic effect of covalently conjugated GR20 DNA aptamer with doxorubicin on glioblastoma cells compared to reference culture of human fibroblasts. MATERIAL AND METHODS A Sus/fP2 cell culture was obtained from glioblastoma tissue sample to analyze the effectiveness of conjugate. A linear culture of human dermal fibroblasts (mesenchymal stem cells) DF1 was used as a control. To assess antiproliferative activity of covalently conjugated GR20 aptamer with doxorubicin, we used the MTS test. The Cell Index was measured using the xCelligence S16 cell analyzer assessing viability of cell cultures by recording changes in real time. RESULTS Human glioblastoma Sus/fP2 cells reduce own proliferative potential by 80% when exposed to doxorubicin (0.5 µM, 72 hours, MTS test), by 9% when exposed to GR20 aptamer (10 µM, 72 hours, MTS test) and by 26% when exposed to covalently conjugated DOX-GR20 (0.5 µM, 72 hours, MTS test). A long-term study of proliferative potential of Sus/fP2 cells on the xCelligence S16 analyzer revealed a significant decrease in the number of cells under the effect of doxorubicin and covalently conjugated DOX-GR20. Effectiveness of covalently conjugated DOX-GR20 is halved. GR20 aptamer at a concentration of 10 μM and its conjugate with doxorubicin DOX-GR20 at a concentration of 1 μM have no negative effect on cells of the control culture of DF1 fibroblasts, while doxorubicin is toxic for these cells. MTS test and xCelligence S16 cell analyzer found no decrease in metabolic activity of DF1 cells and their ability to proliferate. CONCLUSION We established obvious antiproliferative effect of covalent conjugate DOX-GR20 on continuous human glioblastoma cell culture Sus/fP2 without toxic effect on the reference culture (dermal fibroblasts DF1).
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Affiliation(s)
- Ya A Sliman
- Burdenko Neurosurgical Center, Moscow, Russia
- Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia
| | | | - O M Antipova
- Lomonosov Moscow State University, Moscow, Russia
| | - V A Brylev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - D A Veryutin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - K A Sapozhnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - A I Alekseeva
- Avtsyn Research Institute of Human Morphology of federal state budgetary scientific institution «Petrovsky national research centre of surgery», Moscow, Russia
- Institute of Higher Nervous Activity and Neurophysiology, Moscow, Russia
| | - I N Pronin
- Burdenko Neurosurgical Center, Moscow, Russia
| | - A M Kopylov
- Lomonosov Moscow State University, Moscow, Russia
| | - G V Pavlova
- Burdenko Neurosurgical Center, Moscow, Russia
- Institute of Higher Nervous Activity and Neurophysiology, Moscow, Russia
- Sechenov First Moscow State Medical University, Moscow, Russia
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10
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Ghaffarinia A, Póliska S, Ayaydin F, Goblos A, Parvaneh S, Manczinger M, Balogh F, Erdei L, Veréb Z, Szabó K, Bata-Csörgő Z, Kemény L. Unraveling Transcriptome Profile, Epigenetic Dynamics, and Morphological Changes in Psoriasis-like Keratinocytes: "Insights into Similarity with Psoriatic Lesional Epidermis". Cells 2023; 12:2825. [PMID: 38132145 PMCID: PMC10741855 DOI: 10.3390/cells12242825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023] Open
Abstract
Keratinocytes are one of the primary cells affected by psoriasis inflammation. Our study aimed to delve deeper into their morphology, transcriptome, and epigenome changes in response to psoriasis-like inflammation. We created a novel cytokine mixture to mimic mild and severe psoriasis-like inflammatory conditions in cultured keratinocytes. Upon induction of inflammation, we observed that the keratinocytes exhibited a mesenchymal-like phenotype, further confirmed by increased VIM mRNA expression and results obtained from confocal microscopy. We performed RNA sequencing to achieve a more global view, revealing 858 and 6987 DEGs in mildly and severely inflamed keratinocytes, respectively. Surprisingly, we found that the transcriptome of mildly inflamed keratinocytes more closely mimicked that of the psoriatic epidermis transcriptome than the severely inflamed keratinocytes. Genes involved in the IL-17 pathway were a major contributor to the similarities of the transcriptomes between mildly inflamed KCs and psoriatic epidermis. Mild and severe inflammation led to the gene regulation of epigenetic modifiers such as HATs, HDACs, DNMTs, and TETs. Immunofluorescence staining revealed distinct 5-hmC patterns in inflamed versus control keratinocytes, and consistently low 5-mC intensity in both groups. However, the global DNA methylation assay detected a tendency of decreased 5-mC levels in inflamed keratinocytes versus controls. This study emphasizes how inflammation severity affects the transcriptomic similarity of keratinocytes to psoriatic epidermis and proves dynamic epigenetic regulation and adaptive morphological changes in inflamed keratinocytes.
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Affiliation(s)
- Ameneh Ghaffarinia
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- Doctoral School of Clinical Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Szilárd Póliska
- Genomic Medicine and Bioinformatics Core Facility, Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary;
| | - Ferhan Ayaydin
- HCEMM-USZ Functional Cell Biology and Immunology, Advanced Core Facility, H-6728 Szeged, Hungary;
- Institute of Plant Biology, Biological Research Centre, H-6726 Szeged, Hungary
| | - Aniko Goblos
- Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, H-6720 Szeged, Hungary; (A.G.); (Z.V.)
| | - Shahram Parvaneh
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Doctoral School of Clinical Medicine, University of Szeged, H-6720 Szeged, Hungary
- Regenerative Medicine and Cellular Pharmacology Laboratory (HECRIN), Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary
| | - Máté Manczinger
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- Systems Immunology Research Group, Institute of Biochemistry, HUN-REN Biological Research Centre, H-6726 Szeged, Hungary
- HCEMM-Systems Immunology Research Group, H-6726 Szeged, Hungary
| | - Fanni Balogh
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lilla Erdei
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Zoltán Veréb
- Centre of Excellence for Interdisciplinary Research, Development and Innovation, University of Szeged, H-6720 Szeged, Hungary; (A.G.); (Z.V.)
- Regenerative Medicine and Cellular Pharmacology Laboratory (HECRIN), Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary
| | - Kornélia Szabó
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Zsuzsanna Bata-Csörgő
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lajos Kemény
- HCEMM-USZ Skin Research Group, H-6720 Szeged, Hungary; (A.G.); (S.P.); (F.B.); (L.E.); (K.S.); (Z.B.-C.)
- Department of Dermatology and Allergology, Albert Szent-Györgyi Medical School, University of Szeged, H-6720 Szeged, Hungary;
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
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11
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Cao V, Sukanadi IP, Loeanurit N, Suroengrit A, Paunrat W, Vibulakhaopan V, Hengphasatporn K, Shigeta Y, Chavasiri W, Boonyasuppayakorn S. A sulfonamide chalcone inhibited dengue virus with a potential target at the SAM-binding site of viral methyltransferase. Antiviral Res 2023; 220:105753. [PMID: 37967754 DOI: 10.1016/j.antiviral.2023.105753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 11/17/2023]
Abstract
Dengue infection is a global health problem as climate change facilitates the spread of mosquito vectors. Infected patients could progress to severe plasma leakage and hemorrhagic shock, where current standard treatment remains supportive. Previous reports suggested that several flavonoid derivatives inhibited mosquito-borne flaviviruses. This work aimed to explore sulfonamide chalcone derivatives as dengue inhibitors and to identify molecular targets. We initially screened 27 sulfonamide chalcones using cell-based antiviral and cytotoxic screenings. Two potential compounds, SC22 and SC27, were identified with DENV1-4 EC50s in the range of 0.71-0.94 and 3.15-4.46 μM, and CC50s at 14.63 and 31.02 μM, respectively. The compounds did not show any elevation in ALT or Cr in C57BL/6 mice on the 1st, 3rd, and 7th days after being administered intraperitoneally with 50 mg/kg SC22 or SC27 in a single dose. Moreover, the SAM-binding site of NS5 methyltransferase was a potential target of SC27 identified by computational and enzyme-based assays. The main target of SC22 was in a late stage of viral replication, but the exact target molecule had yet to be identified. In summary, a sulfonamide chalcone, SC27, was a potential DENV inhibitor that targeted viral methyltransferase. Further investigation should be the study of the structure-activity relationship of SC27 derivatives for higher potency and lower toxicity.
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Affiliation(s)
- Van Cao
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand; Interdisciplinary Program in Microbiology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand; DaNang University of Medical Technology and Pharmacy, DaNang, 50200, Viet Nam
| | - I Putu Sukanadi
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Naphat Loeanurit
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Aphinya Suroengrit
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Wattamon Paunrat
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand; Interdisciplinary Program in Medical Sciences, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vipanee Vibulakhaopan
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kowit Hengphasatporn
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Warinthorn Chavasiri
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Siwaporn Boonyasuppayakorn
- Center of Excellence in Applied Medical Virology, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand; Interdisciplinary Program in Microbiology, Graduate School, Chulalongkorn University, Bangkok, 10330, Thailand; Interdisciplinary Program in Medical Sciences, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand; Center of Excellence in Vaccine Research and Development, Chulalongkorn University (Chula-VRC), Bangkok, 10330, Thailand.
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12
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Jin J, Xiao L, Wu Y, Sun Z, Xiong Z, Li Y, Zhao Y, Yao W, Shen L, Cui Y, Tan Y, Han Y, Du Z, Cui Y, Yang R, Song K, Song Y. Characterization of an aspartate aminotransferase encoded by YPO0623 with frequent nonsense mutations in Yersinia pestis. Front Cell Infect Microbiol 2023; 13:1288371. [PMID: 38089818 PMCID: PMC10713766 DOI: 10.3389/fcimb.2023.1288371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
Yersinia pestis, the causative agent of plague, is a genetically monomorphic bacterial pathogen that evolved from Yersinia pseudotuberculosis approximately 7,400 years ago. We observed unusually frequent mutations in Y. pestis YPO0623, mostly resulting in protein translation termination, which implies a strong natural selection. These mutations were found in all phylogenetic lineages of Y. pestis, and there was no apparent pattern in the spatial distribution of the mutant strains. Based on these findings, we aimed to investigate the biological function of YPO0623 and the reasons for its frequent mutation in Y. pestis. Our in vitro and in vivo assays revealed that the deletion of YPO0623 enhanced the growth of Y. pestis in nutrient-rich environments and led to increased tolerance to heat and cold shocks. With RNA-seq analysis, we also discovered that the deletion of YPO0623 resulted in the upregulation of genes associated with the type VI secretion system (T6SS) at 26°C, which probably plays a crucial role in the response of Y. pestis to environment fluctuations. Furthermore, bioinformatic analysis showed that YPO0623 has high homology with a PLP-dependent aspartate aminotransferase in Salmonella enterica, and the enzyme activity assays confirmed its aspartate aminotransferase activity. However, the enzyme activity of YPO0623 was significantly lower than that in other bacteria. These observations provide some insights into the underlying reasons for the high-frequency nonsense mutations in YPO0623, and further investigations are needed to determine the exact mechanism.
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Affiliation(s)
- Junyan Jin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Liting Xiao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Yarong Wu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zhulin Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Ziyao Xiong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yanbing Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- Department of Laboratory Medicine, Xiangya Hospital of Central South University, Changsha, China
| | - Yanting Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot, China
| | - Wenwu Yao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- Department of Microbiology and Department of Infectious Diseases, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Leiming Shen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yiming Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yafang Tan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yanping Han
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Zongmin Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yujun Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Ruifu Yang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Kai Song
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Yajun Song
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot, China
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13
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Cao M, Carlson RD, Staudt RE, Snook AE. In vitro assays to evaluate CAR-T cell cytotoxicity. Methods Cell Biol 2023; 183:303-315. [PMID: 38548415 DOI: 10.1016/bs.mcb.2023.05.009] [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] [Indexed: 04/02/2024]
Abstract
This chapter introduces four commonly used in vitro chimeric antigen receptor (CAR)-T cell cytotoxicity assays (lactate dehydrogenase release assay, 51Cr release assay, IncuCyte live cell killing assay, and xCELLigence real-time analysis) and provides a detailed protocol for xCELLigence real-time analysis. Focusing on in vitro assays, this chapter starts with explaining the mechanisms and discussing the utilization of each assay to quantify T-cell-induced cytotoxicity. Due to the high-throughput quantification and straightforward workflow of xCELLigence real-time analysis, a protocol entailing reagents and equipment, a 3-day step-by-step procedure, and instructions for data analysis are provided.
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Affiliation(s)
- Miao Cao
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Robert D Carlson
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Ross E Staudt
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Adam E Snook
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States; Department of Microbiology & Immunology, Thomas Jefferson University, Philadelphia, PA, United States; Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, United States.
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14
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Ferrante A, Tamma M, Agriesti F, Tucci F, Lopriore P, Amodio ML, Colelli G, Capitanio N, Piccoli C, Pacelli C. Characterization of the effect of pomegranate crude extract, and its post-harvesting preservation procedures, on redox tone, cellular growth and metabolic profile of MDA-MB-231 cell line. BMC Complement Med Ther 2023; 23:311. [PMID: 37684643 PMCID: PMC10485948 DOI: 10.1186/s12906-023-04134-1] [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: 04/11/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Pomegranate is known for its beneficial properties due to its high content in antioxidants and might constitute a natural option for preventing and treatment of different pathologies including cancer. Since mitochondria are involved in tumorigenesis through ROS production and modulation of oxidative metabolism, we investigated the biological effects of pomegranate on cellular redox state, proliferation and metabolism in the breast cancer cell line MDA-MB-231 (MDA). METHODS MDA were treated for 24 h with graded concentration of filtered Pomegranate juice (PJ) and tested for metabolic Flux Analysis with XFe96 Extracellular Flux Analyzer, for proliferation using the xCELLigence System Real-Time Cell Analyzer and for intracellular ROS content by Confocal Microscopy Imaging. RESULTS Cells-treatment with freshly prepared pomegranate juice (PJ) resulted in a significant reduction of the intracellular ROS content already at the lower concentration of PJ tested. Additionally, it enhanced mitochondria respiration, and decreased glycolysis at high concentrations, inhibiting at the same time cell proliferation. As pomegranate is a seasonal fruit, assessment of optimum storage conditions preserving its bio-active properties was investigated. Our results indicated that storage conditions under controlled atmosphere for 30 days was able to enhance mitochondrial respiration at the same extent than freshly extracted PJ. Conversely, freezing procedure, though retaining the antioxidant and cell-growth inhibitory property, elicited an opposite effect on the metabolic profile as compared with fresh extract. CONCLUSION Overall, the results of our study, on the one hand, confirms the preventive/therapeutic potential of PJ, as well as of its post-harvested processing, for cancer management. On the other hand, it highlights the intrinsic difficulties in attaining mechanistic insights when a multiplicity of effects is elicited by a crude mixture of bio-active compounds.
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Affiliation(s)
- Aristide Ferrante
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Mirko Tamma
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Francesca Agriesti
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Francesco Tucci
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Piervito Lopriore
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Maria Luisa Amodio
- Department of Agricultural Sciences, Food, Natural Resources and Engineering, University of Foggia, 71122, Foggia, Italy
| | - Giancarlo Colelli
- Department of Agricultural Sciences, Food, Natural Resources and Engineering, University of Foggia, 71122, Foggia, Italy
| | - Nazzareno Capitanio
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy
| | - Claudia Piccoli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy.
| | - Consiglia Pacelli
- Department of Clinical and Experimental Medicine, University of Foggia, 71122, Foggia, Italy.
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15
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Balcik-Ercin P, Ekineker G, Salik N, Aydoğdu B, Yagci T, Göksel M. Arginine mediated photodynamic therapy with silicon(IV) phthalocyanine photosensitizers. Photodiagnosis Photodyn Ther 2023; 43:103667. [PMID: 37355078 DOI: 10.1016/j.pdpdt.2023.103667] [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: 10/27/2022] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 06/26/2023]
Abstract
In the current study, we synthesized a new SiPc derivative conjugated with arginine at the axial positions, for a novel phthalocyanine-based photosensitizer for photodynamic therapy (PDT) applications in cancer cells. Axially-di-arginine substituted new silicon(IV) phthalocyanine photosensitizer (PS-5a) has been thoroughly researched for its anti-cancer properties. Various spectroscopic techniques were used to characterize this conjugate, including 1H NMR, 13C NMR, FT-IR, UV-vis, and MS spectral data. The in vitro PDT activities of the conjugate on cancer cells were tested through its cytotoxic, clonogenic, apoptotic effects on, and its capacity to induce DNA damage, and the disruption of mitochondrial membrane potential in cancer cell lines (liver; HuH-7, cervix; HeLa and breast; MCF7). Cancer cells exposed to the light illumination following uptake of the PS-5a as a photosensitizer revealed DNA breakage and collapsed mitochondrial membrane potential. The results of the present investigation demonstrate that PS-5a has a significant photo-cytotoxic effect on cancer cells. So, axially-di-arginine substituted silicon(IV) phthalocyanine could be an effective PDT agent for PDT treatment.
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Affiliation(s)
- Pelin Balcik-Ercin
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze-Kocaeli 41400, Turkiye; Faculty of Science, Department of Biology, Dokuz Eylül University, İzmir 35390, Turkiye
| | - Gülçin Ekineker
- Center for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli 41001, Turkiye; Health Services Vocational College, Trakya University, Edirne 22030, Turkiye
| | - Nazlı Salik
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze-Kocaeli 41400, Turkiye
| | - Bahar Aydoğdu
- Center for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli 41001, Turkiye
| | - Tamer Yagci
- Department of Molecular Biology and Genetics, Gebze Technical University, Gebze-Kocaeli 41400, Turkiye
| | - Meltem Göksel
- Center for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli 41001, Turkiye.
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16
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Huang SH, Sartorello G, Shen PT, Xu C, Elemento O, Shvets G. Metasurface-enhanced infrared spectroscopy in multiwell format for real-time assaying of live cells. LAB ON A CHIP 2023; 23:2228-2240. [PMID: 37010356 PMCID: PMC10159923 DOI: 10.1039/d3lc00017f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Fourier transform infrared (FTIR) spectroscopy is a popular technique for the analysis of biological samples, yet its application in characterizing live cells is limited due to the strong attenuation of mid-IR light in water. Special thin flow cells and attenuated total reflection (ATR) FTIR spectroscopy have been used to mitigate this problem, but these techniques are difficult to integrate into a standard cell culture workflow. In this work, we demonstrate that the use of a plasmonic metasurface fabricated on planar substrates and the probing of cellular IR spectra through metasurface-enhanced infrared spectroscopy (MEIRS) can be an effective technique to characterize the IR spectra of live cells in a high-throughput manner. Cells are cultured on metasurfaces integrated with multiwell cell culture chambers and are probed from the bottom using an inverted FTIR micro-spectrometer. To demonstrate the use of MEIRS as a cellular assay, cellular adhesion on metasurfaces with different surface coatings and cellular response to the activation of the protease-activated receptor (PAR) signaling pathway were characterized through the changes in cellular IR spectra.
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Affiliation(s)
- Steven H Huang
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York, 14853, USA.
| | - Giovanni Sartorello
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York, 14853, USA.
| | - Po-Ting Shen
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York, 14853, USA.
| | - Chengqi Xu
- Caryl and Israel Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY, 10021, USA.
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Olivier Elemento
- Caryl and Israel Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, NY, 10021, USA.
| | - Gennady Shvets
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York, 14853, USA.
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17
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Wijewantha N, Sane S, Eikanger M, Antony RM, Potts RA, Lang L, Rezvani K, Sereda G. Enhancing Anti-Tumorigenic Efficacy of Eugenol in Human Colon Cancer Cells Using Enzyme-Responsive Nanoparticles. Cancers (Basel) 2023; 15:cancers15041145. [PMID: 36831488 PMCID: PMC9953800 DOI: 10.3390/cancers15041145] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/17/2023] Open
Abstract
This study is focused on the selective delivery and release of the plant-based anticancer compound eugenol (EUG) in colorectal cancer cells (CRC). EUG is an apoptotic and anti-growth compound in diverse malignant tumors, including CRC. However, EUG's rapid metabolization, excretion, and side effects on normal cells at higher dosages are major limitations of its therapeutic potential. To address this problem, we developed a "smart" enzyme-responsive nanoparticle (eNP) loaded with EUG that exposes tumors to a high level of the drug while keeping its concentration low among healthy cells. We demonstrated that EUG induces apoptosis in CRC cells irrespective of their grades in a dose- and time-dependent manner. EUG significantly decreases cancer cell migration, invasion, and the population of colon cancer stem cells, which are key players in tumor metastasis and drug resistance. The "smart" eNPs-EUG show a high affinity to cancer cells with rapid internalization with no affinity toward normal colon epithelial cells. NPs-EUG enhanced the therapeutic efficacy of EUG measured by a cell viability assay and showed no toxicity effect on normal cells. The development of eNPs-EUG is a promising strategy for innovative anti-metastatic therapeutics.
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Affiliation(s)
- Nisitha Wijewantha
- Department of Chemistry, The University of South Dakota, 414 E. Clark Street, Vermillion, SD 57069, USA
| | - Sanam Sane
- Division of Basic Biomedical Sciences, Sanford School of Medicine, The University of South Dakota, 414 E. Clark Street, Lee Medical Building, Vermillion, SD 57069, USA
| | - Morgan Eikanger
- Division of Basic Biomedical Sciences, Sanford School of Medicine, The University of South Dakota, 414 E. Clark Street, Lee Medical Building, Vermillion, SD 57069, USA
| | - Ryan M. Antony
- Division of Basic Biomedical Sciences, Sanford School of Medicine, The University of South Dakota, 414 E. Clark Street, Lee Medical Building, Vermillion, SD 57069, USA
| | - Rashaun A. Potts
- Division of Basic Biomedical Sciences, Sanford School of Medicine, The University of South Dakota, 414 E. Clark Street, Lee Medical Building, Vermillion, SD 57069, USA
| | - Lydia Lang
- Department of Chemistry, The University of South Dakota, 414 E. Clark Street, Vermillion, SD 57069, USA
| | - Khosrow Rezvani
- Division of Basic Biomedical Sciences, Sanford School of Medicine, The University of South Dakota, 414 E. Clark Street, Lee Medical Building, Vermillion, SD 57069, USA
- Correspondence: (K.R.); (G.S.)
| | - Grigoriy Sereda
- Department of Chemistry, The University of South Dakota, 414 E. Clark Street, Vermillion, SD 57069, USA
- Correspondence: (K.R.); (G.S.)
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18
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Skinner WS, Zhang S, Garcia JR, Guldberg RE, Ong KG. Magnetoelastic Monitoring System for Tracking Growth of Human Mesenchymal Stromal Cells. SENSORS (BASEL, SWITZERLAND) 2023; 23:1832. [PMID: 36850431 PMCID: PMC9960728 DOI: 10.3390/s23041832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Magnetoelastic sensors, which undergo mechanical resonance when interrogated with magnetic fields, can be functionalized to measure various physical quantities and chemical/biological analytes by tracking their resonance behaviors. The unique wireless and functionalizable nature of these sensors makes them good candidates for biological sensing applications, from the detection of specific bacteria to tracking force loading inside the human body. In this study, we evaluate the viability of magnetoelastic sensors based on a commercially available magnetoelastic material (Metglas 2826 MB) for wirelessly monitoring the attachment and growth of human mesenchymal stromal cells (hMSCs) in 2D in vitro cell culture. The results indicate that the changes in sensor resonance are linearly correlated with cell quantity. Experiments using a custom-built monitoring system also demonstrated the ability of this technology to collect temporal profiles of cell growth, which could elucidate key stages of cell proliferation based on acute features in the profile. Additionally, there was no observed change in the morphology of cells after they were subjected to magnetic and mechanical stimuli from the monitoring system, indicating that this method for tracking cell growth may have minimal impact on cell quality and potency.
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19
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Shin SY, Nguyen LK. SynDISCO: A Mechanistic Modeling-Based Framework for Predictive Prioritization of Synergistic Drug Combinations Targeting Cell Signalling Networks. Methods Mol Biol 2023; 2634:357-381. [PMID: 37074588 DOI: 10.1007/978-1-0716-3008-2_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
The widespread development of resistance to cancer monotherapies has prompted the need to identify combinatorial treatment approaches that circumvent drug resistance and achieve more durable clinical benefit. However, given the vast space of possible combinations of existing drugs, the inaccessibility of drug screens to candidate targets with no available drugs, and the significant heterogeneity of cancers, exhaustive experimental testing of combination treatments remains highly impractical. There is thus an urgent need to develop computational approaches that complement experimental efforts and aid the identification and prioritization of effective drug combinations. Here, we provide a practical guide to SynDISCO, a computational framework that leverages mechanistic ODE modeling to predict and prioritize synergistic combination treatments directed at signaling networks. We demonstrate the key steps of SynDISCO and its application to the EGFR-MET signaling network in triple negative breast cancer as an illustrative example. SynDISCO is, however, a network- and cancer-independent framework, and given a suitable ODE model of the network of interest, it could be leveraged to discover cancer-specific combination treatments.
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Affiliation(s)
- Sung-Young Shin
- Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC, Australia.
- Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.
| | - Lan K Nguyen
- Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, VIC, Australia.
- Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.
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20
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Novopashina DS, Dymova MA, Davydova AS, Meschaninova MI, Malysheva DO, Kuligina EV, Richter VA, Kolesnikov IA, Taskaev SY, Vorobyeva MA. Aptamers for Addressed Boron Delivery in BNCT: Effect of Boron Cluster Attachment Site on Functional Activity. Int J Mol Sci 2022; 24:ijms24010306. [PMID: 36613750 PMCID: PMC9820356 DOI: 10.3390/ijms24010306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Among the great variety of anti-cancer therapeutic strategies, boron neutron capture therapy (BNCT) represents a unique approach that doubles the targeting accuracy due to the precise positioning of a neutron beam and the addressed delivery of boron compounds. We have recently demonstrated the principal possibility of using a cell-specific 2'-F-RNA aptamer for the targeted delivery of boron clusters for BNCT. In the present study, we evaluated the amount of boron-loaded aptamer inside the cell via two independent methods: quantitative real-time polymerase chain reaction and inductive coupled plasma-atomic emission spectrometry. Both assays showed that the internalized boron level inside the cell exceeds 1 × 109 atoms/cell. We have synthesized closo-dodecaborate conjugates of 2'-F-RNA aptamers GL44 and Waz, with boron clusters attached either at the 3'- or at the 5'-end. The influence of cluster localization was evaluated in BNCT experiments on U-87 MG human glioblastoma cells and normal fibroblasts and subsequent analyses of cell viability via real-time cell monitoring and clonogenic assay. Both conjugates of GL44 aptamer provided a specific decrease in cell viability, while only the 3'-conjugate of the Waz aptamer showed the same effect. Thus, an individual adjustment of boron cluster localization is required for each aptamer. The efficacy of boron-loaded 2'-F-RNA conjugates was comparable to that of 10B-boronophenylalanine, so this type of boron delivery agent has good potential for BNCT due to such benefits as precise targeting, low toxicity and the possibility to use boron clusters made of natural, unenriched boron.
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Affiliation(s)
- Darya S. Novopashina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Maya A. Dymova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Anna S. Davydova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Mariya I. Meschaninova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Daria O. Malysheva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Elena V. Kuligina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Vladimir A. Richter
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Iaroslav A. Kolesnikov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Budker Institute of Nuclear Physics, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Sergey Yu. Taskaev
- Budker Institute of Nuclear Physics, Siberian Division of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Mariya A. Vorobyeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Correspondence:
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21
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Microcapsule-Based Dose-Dependent Regulation of the Lifespan and Behavior of Adipose-Derived MSCs as a Cell-Mediated Delivery System: In Vitro Study. Int J Mol Sci 2022; 24:ijms24010292. [PMID: 36613737 PMCID: PMC9820487 DOI: 10.3390/ijms24010292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
The development of “biohybrid” drug delivery systems (DDS) based on mesenchymal stem/stromal cells (MSCs) is an important focus of current biotechnology research, particularly in the areas of oncotheranostics, regenerative medicine, and tissue bioengineering. However, the behavior of MSCs at sites of inflammation and tumor growth is relevant to potential tumor transformation, immunosuppression, the inhibition or stimulation of tumor growth, metastasis, and angiogenesis. Therefore, the concept was formulated to control the lifespan of MSCs for a specific time sufficient for drug delivery to the target tissue by varying the number of internalized microcontainers. The current study addressed the time-dependent in vitro assessment of the viability, migration, and division of human adipose-derived MSCs (hAMSCs) as a function of the dose of internalized polyelectrolyte microcapsules prepared using a layer-by-layer technique. Polystyrene sulfonate (PSS)—poly(allylamine hydrochloride) (PAH)-coated spherical micrometer-sized (diameter ~2−3 µm) vaterite (CaCO3) microcapsules (PAH-PSS)6 with the capping PSS layer were prepared after dissolution of the CaCO3 core template. The Cell-IQ phase contrast imaging results showed that hAMSCs internalized all (PAH-PSS)6 microcapsules saturating the intercellular medium (5−90 particles per cell). A strong (r > 0.7) linear dose-dependent and time-dependent (up to 8 days) regression was observed between the in vitro decrease in cell viability and the number of internalized microvesicles. The approximate time-to-complete-death of hAMSCs at different concentrations of microcapsules in culture was 428 h (1:5 ratio), 339 h (1:10), 252 h (1:20), 247 h (1:45), and 170 h (1:90 ratio). By varying the number of microcontainers loaded into the cells (from 1:10 to 1:90), a dose-dependent exponential decrease in both the movement rate and division rate of hAMSCs was observed. A real-time cell analysis (RTCA) of the effect of (PAH-PSS)6 microcapsules (from 1:5 to 1:20) on hAMSCs also showed a dose- and time-dependent decrease in cell longevity after a 50h study at ratios of 1:10 and 1:20. The incorporation of microcapsules (1:5, 1:20, and 1:45) resulted in a dose-dependent increase in 24−48 h secretion of GRO-α (CXCL1), MIF, and SDF-1α (CXCL12) chemokines in hAMSC culture. In turn, the normalization or inhibition of chemokine secretion occurred after 72 h, except for MIF levels below 5−20 microcapsules, which were internalized by MSCs. Thus, the proposed concept of controlling the lifespan of MSC-based DDS using a dose of internalized PAH-PSS microcapsules could be useful for biomedical applications. (PAH-PSS)6 microcapsule ratios of 1:5 and 1:10 have little effect on the lifespan of hAMSCs for a long time (up to 14−18 days), which can be recommended for regenerative therapy and tissue bioengineering associated with low oncological risk. The microcapsule ratios of 1:20 and 1:45 did not significantly restrict the migratory activity of hAMSCs-based DDS during the time interval required for tissue delivery (up to 4−5 days), followed by cell death after 10 days. Therefore, such doses of microcapsules can be used for hAMSC-based DDS in oncotheranostics.
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22
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Mikkelsen RB, Arora T, Trošt K, Dmytriyeva O, Jensen SK, Meijnikman AS, Olofsson LE, Lappa D, Aydin Ö, Nielsen J, Gerdes V, Moritz T, van de Laar A, de Brauw M, Nieuwdorp M, Hjorth SA, Schwartz TW, Bäckhed F. Type 2 diabetes is associated with increased circulating levels of 3-hydroxydecanoate activating GPR84 and neutrophil migration. iScience 2022; 25:105683. [PMID: 36561890 PMCID: PMC9763857 DOI: 10.1016/j.isci.2022.105683] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 06/10/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022] Open
Abstract
Obesity and diabetes are associated with inflammation and altered plasma levels of several metabolites, which may be involved in disease progression. Some metabolites can activate G protein-coupled receptors (GPCRs) expressed on immune cells where they can modulate metabolic inflammation. Here, we find that 3-hydroxydecanoate is enriched in the circulation of obese individuals with type 2 diabetes (T2D) compared with nondiabetic controls. Administration of 3-hydroxydecanoate to mice promotes immune cell recruitment to adipose tissue, which was associated with adipose inflammation and increased fasting insulin levels. Furthermore, we demonstrate that 3-hydroxydecanoate stimulates migration of primary human and mouse neutrophils, but not monocytes, through GPR84 and Gαi signaling in vitro. Our findings indicate that 3-hydroxydecanoate is a T2D-associated metabolite that increases inflammatory responses and may contribute to the chronic inflammation observed in diabetes.
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Affiliation(s)
- Randi Bonke Mikkelsen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Tulika Arora
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Kajetan Trošt
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Oksana Dmytriyeva
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Sune Kjærsgaard Jensen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Abraham Stijn Meijnikman
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Louise Elisabeth Olofsson
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Dimitra Lappa
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Ömrüm Aydin
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Jens Nielsen
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Victor Gerdes
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Thomas Moritz
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | | | - Maurits de Brauw
- Department of Surgery, Spaarne Hospital, Hoofddorp, the Netherlands
| | - Max Nieuwdorp
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centre, Amsterdam, the Netherlands
| | - Siv Annegrethe Hjorth
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Thue Walter Schwartz
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark
| | - Fredrik Bäckhed
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen, Denmark,Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Region Västra Götaland, Sahlgrenska University Hospital, Department of Clinical Physiology, Gothenburg, Sweden,Corresponding author
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23
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Effective Capacitance from Equivalent Electrical Circuit as a Tool for Monitoring Non-Adherent Cell Suspensions at Low Frequencies. Bioengineering (Basel) 2022; 9:bioengineering9110697. [DOI: 10.3390/bioengineering9110697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022] Open
Abstract
Analyzing the electrical double layer (EDL) in electrical impedance spectroscopy (EIS) measurement at low frequencies remains a challenging task for sensing purposes. In this work, we propose two approaches to deal with the EDL in measuring impedance for particles and non-adherent cells in an electrolytic suspension. The first approach is a simple procedure to compute a normalized electrical impedance spectrum named dispersed medium index (DMi). The second is the EIS modeling through an equivalent electric circuit based on the so-called effective capacitance (Cef), which unifies the EDL phenomena. Firstly, as an experiment under controlled conditions, we examine polymer particles of 6, 15, and 48 μm in diameter suspended in a 0.9% sodium chloride solution. Subsequently, we used K-562 cells and leukocytes suspended in a culture medium (RPMI-1640 supplemented) for a biological assay. As the main result, the DMi is a function of the particle concentration. In addition, it shows a tendency with the particle size; regardless, it is limited to a volume fraction of 0.03 × 10−4 to 58 × 10−4. The DMi is not significantly different between K-562 cells and leukocytes for most concentrations. On the other hand, the Cef exhibits high applicability to retrieve a function that describes the concentration for each particle size, the K-562 cells, and leukocytes. The Cef also shows a tendency with the particle size without limitation within the range tested, and it allows distinction between the K-562 and leukocytes in the 25 cells/µL to 400 cells/µL range. We achieved a simple method for determining an Cef by unifying the parameters of an equivalent electrical circuit from data obtained with a conventional potentiostat. This simple approach is affordable for characterizing the population of non-adherent cells suspended in a cell culture medium.
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24
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Ke G, Zhang J, Gao W, Chen J, Liu L, Wang S, Zhang H, Yan G. Application of advanced technology in traditional Chinese medicine for cancer therapy. Front Pharmacol 2022; 13:1038063. [PMID: 36313284 PMCID: PMC9606699 DOI: 10.3389/fphar.2022.1038063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 09/28/2022] [Indexed: 11/19/2022] Open
Abstract
Although cancer has seriously threatened people’s health, it is also identified by the World Health Organization as a controllable, treatable and even curable chronic disease. Traditional Chinese medicine (TCM) has been extensively used to treat cancer due to its multiple targets, minimum side effects and potent therapeutic effects, and thus plays an important role in all stages of tumor therapy. With the continuous progress in cancer treatment, the overall efficacy of cancer therapy has been significantly improved, and the survival time of patients has been dramatically prolonged. In recent years, a series of advanced technologies, including nanotechnology, gene editing technology, real-time cell-based assay (RTCA) technology, and flow cytometry analysis technology, have been developed and applied to study TCM for cancer therapy, which efficiently improve the medicinal value of TCM and accelerate the research progress of TCM in cancer therapy. Therefore, the applications of these advanced technologies in TCM for cancer therapy are summarized in this review. We hope this review will provide a good guidance for TCM in cancer therapy.
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Affiliation(s)
- Gaofeng Ke
- Department of Rehabilitation Medicine, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, China
| | - Jia Zhang
- School of Pharmacy, Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wufeng Gao
- School of Pharmacy, Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jiayi Chen
- School of Life Sciences, Jilin University, Changchun, China
| | - Luotong Liu
- School of Life Sciences, Jilin University, Changchun, China
| | - Simiao Wang
- School of Life Sciences, Jilin University, Changchun, China
| | - Huan Zhang
- School of Life Sciences, Jilin University, Changchun, China
- *Correspondence: Huan Zhang, ; Guojun Yan,
| | - Guojun Yan
- School of Pharmacy, Jiangsu Provincial Engineering Research Center of Traditional Chinese Medicine External Medication Development and Application, Nanjing University of Chinese Medicine, Nanjing, China
- *Correspondence: Huan Zhang, ; Guojun Yan,
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25
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Ebrahim AS, Ebrahim T, Kani H, Ibrahim AS, Carion TW, Berger EA. Functional optimization of electric cell-substrate impedance sensing (ECIS) using human corneal epithelial cells. Sci Rep 2022; 12:14126. [PMID: 35986158 PMCID: PMC9391335 DOI: 10.1038/s41598-022-18182-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/08/2022] [Indexed: 12/26/2022] Open
Abstract
An intact epithelium is key to maintaining corneal integrity and barrier function which can lead to impaired ocular defense and sight-threatening opacity when compromised. Electrical cell-substrate impedance sensing or ECIS is a non-invasive method to measure real-time cellular behaviors including barrier function and cell migration. The current study uses ECIS technology to assess and optimize human telomerase-immortalized corneal epithelial cells to generate quantifiable measurements that accurately reflect changes in cell behavior in vitro. Five cell densities were assessed in two different media to determine the optimal conditions for monitoring of cellular behavior over time. Parameters of evaluation included: overall impedance (Z), barrier resistance (R), cell capacitance (C), and mathematical modeling of the R data to further generate Rb (the electrical resistance between HUCLs), α (the resistance between the HUCLs and the substrate), and Cm (the capacitance of the cell membrane) measurements. All parameters of assessment strongly indicated DMEM/F12 at 60,000 cells as the optimal condition for ECIS assessment of HUCLs. Furthermore, this work highlights the ability of the sensitive ECIS biosensor technology to comprehensively and quantitatively assess corneal epithelial cell structure and function and the importance of optimizing not only cell density, but choice of media used for in vitro culturing.
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26
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Melanoma Mediated Disruption of Brain Endothelial Barrier Integrity Is Not Prevented by the Inhibition of Matrix Metalloproteinases and Proteases. BIOSENSORS 2022; 12:bios12080660. [PMID: 36005056 PMCID: PMC9405625 DOI: 10.3390/bios12080660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/10/2022] [Accepted: 08/15/2022] [Indexed: 12/04/2022]
Abstract
We have previously shown that human melanoma cells rapidly decrease human brain endothelial barrier strength. Our findings showed a fast mechanism of melanoma mediated barrier disruption, which was localised to the paracellular junctions of the brain endothelial cells. Melanoma cells are known to release molecules which cleave the surrounding matrix and allow traversal within and out of their metastatic niche. Enzymatic families, such as matrix metalloproteinases (MMPs) and proteases are heavily implicated in this process and their complex nature in vivo makes them an intriguing family to assess in melanoma metastasis. Herein, we assessed the expression of MMPs and other proteases in melanoma conditioned media. Our results showed evidence of a high expression of MMP-2, but not MMP-1, -3 or -9. Other proteases including Cathepsins D and B were also detected. Recombinant MMP-2 was added to the apical face of brain endothelial cells (hCMVECs), to measure the change in barrier integrity using biosensor technology. Surprisingly, this showed no decrease in barrier strength. The addition of potent MMP inhibitors (batimastat, marimastat, ONO4817) and other protease inhibitors (such as aprotinin, Pefabloc SC and bestatin) to the brain endothelial cells, in the presence of various melanoma lines, showed no reduction in the melanoma mediated barrier disruption. The inhibitors batimastat, Pefabloc SC, antipain and bestatin alone decreased the barrier strength. These results suggest that although some MMPs and proteases are released by melanoma cells, there is no direct evidence that they are substantially involved in the initial melanoma-mediated disruption of the brain endothelium.
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27
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Kodolova-Chukhontseva VV, Shishov MA, Kolbe KA, Smirnova NV, Dobrovol’skaya IP, Dresvyanina EN, Bystrov SG, Terebova NS, Kamalov AM, Bursian AE, Ivan’kova EM, Yudin VE. Conducting Composite Material Based on Chitosan and Single-Wall Carbon Nanotubes for Cellular Technologies. Polymers (Basel) 2022; 14:polym14163287. [PMID: 36015544 PMCID: PMC9413541 DOI: 10.3390/polym14163287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Biocompatible electrically conducting chitosan-based films filled with single-wall carbon nanotubes were obtained. Atomic force microscopic studies of the free surface topography revealed a change in the morphology of chitosan films filled with single-wall carbon nanotubes. Introducing 0.5 wt.% of single-wall carbon nanotubes into chitosan results in an increase in tensile strength of the films (up to ~180 MPa); the tensile strain values also rise up to ~60%. It was demonstrated that chitosan films containing 0.1–3.0 wt.% of single-wall carbon nanotubes have higher conductivity (10 S/m) than pure chitosan films (10−11 S/m). The investigation of electrical stimulation of human dermal fibroblasts on chitosan/single-wall carbon nanotubes film scaffolds showed that the biological effect of cell electrical stimulation depends on the content of single-walled carbon nanotubes in the chitosan matrix.
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Affiliation(s)
- Vera Vladimirovna Kodolova-Chukhontseva
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Mikhail Alexandrovich Shishov
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Konstantin Andreevich Kolbe
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Natalia Vladimirovna Smirnova
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Irina Petrovna Dobrovol’skaya
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Elena Nikolaevna Dresvyanina
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
- Institute of Textile and Fashion, Saint Petersburg State University of Industrial Technologies and Design, Bolshaya Morskaya Street, 18, 191186 Saint-Petersburg, Russia
- Correspondence:
| | - Sergei Gennadievich Bystrov
- Department of Physics and Surface Chemistry, Udmurt Federal Research Center UB RAS, Tatiana Baramzina Str., 34, 426067 Izhevsk, Russia
| | - Nadezda Semenovna Terebova
- Department of Physics and Surface Chemistry, Udmurt Federal Research Center UB RAS, Tatiana Baramzina Str., 34, 426067 Izhevsk, Russia
| | - Almaz Maratovich Kamalov
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Anna Ericovna Bursian
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Elena Mikhailovna Ivan’kova
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Vladimir Evgenievich Yudin
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
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Influence of Electric Field on Proliferation Activity of Human Dermal Fibroblasts. J Funct Biomater 2022; 13:jfb13030089. [PMID: 35893457 PMCID: PMC9326723 DOI: 10.3390/jfb13030089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/22/2022] [Accepted: 06/26/2022] [Indexed: 11/16/2022] Open
Abstract
In this work, an electrically conductive composite based on thermoplastic polyimide and graphene was obtained and used as a bioelectrode for electrical stimulation of human dermal fibroblasts. The values of the electrical conductivity of the obtained composite films varied from 10−15 to 102 S/m with increasing graphene content (from 0 to 5.0 wt.%). The characteristics of ionic and electronic currents flowing through the matrix with the superposition of cyclic potentials ± 100 mV were studied. The high stability of the composite was established during prolonged cycling (130 h) in an electric field with a frequency of 0.016 Hz. It was established that the composite films based on polyimide and graphene have good biocompatibility and are not toxic to fibroblast cells. It was shown that preliminary electrical stimulation increases the proliferative activity of human dermal fibroblasts in comparison with intact cells. It is revealed that an electric field with a strength E = 0.02–0.04 V/m applied to the polyimide films containing 0.5–3.0 wt.% of the graphene nanoparticles activates cellular processes (adhesion, proliferation).
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Sijben HJ, Dall’ Acqua L, Liu R, Jarret A, Christodoulaki E, Onstein S, Wolf G, Verburgt SJ, Le Dévédec SE, Wiedmer T, Superti-Furga G, IJzerman AP, Heitman LH. Impedance-Based Phenotypic Readout of Transporter Function: A Case for Glutamate Transporters. Front Pharmacol 2022; 13:872335. [PMID: 35677430 PMCID: PMC9169222 DOI: 10.3389/fphar.2022.872335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/29/2022] [Indexed: 11/18/2022] Open
Abstract
Excitatory amino acid transporters (EAAT/SLC1) mediate Na+-dependent uptake of extracellular glutamate and are potential drug targets for neurological disorders. Conventional methods to assess glutamate transport in vitro are based on radiolabels, fluorescent dyes or electrophysiology, which potentially compromise the cell’s physiology and are generally less suited for primary drug screens. Here, we describe a novel label-free method to assess human EAAT function in living cells, i.e., without the use of chemical modifications to the substrate or cellular environment. In adherent HEK293 cells overexpressing EAAT1, stimulation with glutamate or aspartate induced cell spreading, which was detected in real-time using an impedance-based biosensor. This change in cell morphology was prevented in the presence of the Na+/K+-ATPase inhibitor ouabain and EAAT inhibitors, which suggests the substrate-induced response was ion-dependent and transporter-specific. A mechanistic explanation for the phenotypic response was substantiated by actin cytoskeleton remodeling and changes in the intracellular levels of the osmolyte taurine, which suggests that the response involves cell swelling. In addition, substrate-induced cellular responses were observed for cells expressing other EAAT subtypes, as well as in a breast cancer cell line (MDA-MB-468) with endogenous EAAT1 expression. These findings allowed the development of a label-free high-throughput screening assay, which could be beneficial in early drug discovery for EAATs and holds potential for the study of other transport proteins that modulate cell shape.
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Affiliation(s)
- Hubert J. Sijben
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Laura Dall’ Acqua
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Rongfang Liu
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Abigail Jarret
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Medical University of Vienna, Vienna, Austria
| | - Eirini Christodoulaki
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Medical University of Vienna, Vienna, Austria
| | - Svenja Onstein
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Medical University of Vienna, Vienna, Austria
| | - Gernot Wolf
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Medical University of Vienna, Vienna, Austria
| | - Simone J. Verburgt
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Sylvia E. Le Dévédec
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Tabea Wiedmer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Medical University of Vienna, Vienna, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Medical University of Vienna, Vienna, Austria
| | - Adriaan P. IJzerman
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Laura H. Heitman
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
- Oncode Institute, Leiden, Netherlands
- *Correspondence: Laura H. Heitman,
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Kuvarina AE, Gavryushina IA, Sykonnikov MA, Efimenko TA, Markelova NN, Bilanenko EN, Bondarenko SA, Kokaeva LY, Timofeeva AV, Serebryakova MV, Barashkova AS, Rogozhin EA, Georgieva ML, Sadykova VS. Exploring Peptaibol's Profile, Antifungal, and Antitumor Activity of Emericellipsin A of Emericellopsis Species from Soda and Saline Soils. Molecules 2022; 27:1736. [PMID: 35268835 PMCID: PMC8911692 DOI: 10.3390/molecules27051736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 11/17/2022] Open
Abstract
Features of the biochemical adaptations of alkaliphilic fungi to exist in extreme environments could promote the production of active antibiotic compounds with the potential to control microorganisms, causing infections associated with health care. Thirty-eight alkaliphilic and alkalitolerant Emericellopsis strains (E. alkalina, E. cf. maritima, E. cf. terricola, Emericellopsis sp.) isolated from different saline soda soils and belonging to marine, terrestrial, and soda soil ecological clades were investigated for emericellipsin A (EmiA) biosynthesis, an antifungal peptaibol previously described for Emericellopsis alkalina. The analysis of the Emericellopsis sp. strains belonging to marine and terrestrial clades from chloride soils revealed another novel form with a mass of 1032.7 Da, defined by MALDI-TOF Ms/Ms spectrometers, as the EmiA lacked a hydroxyl (dEmiA). EmiA displayed strong inhibitory effects on cell proliferation and viability of HCT 116 cells in a dose- and time-dependent manners and induced apoptosis.
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Affiliation(s)
- Anastasia E. Kuvarina
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
| | - Irina A. Gavryushina
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
| | - Maxim A. Sykonnikov
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
| | - Tatiana A. Efimenko
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
| | - Natalia N. Markelova
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
| | - Elena N. Bilanenko
- Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119234 Moscow, Russia; (E.N.B.); (S.A.B.); (L.Y.K.)
| | - Sofiya A. Bondarenko
- Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119234 Moscow, Russia; (E.N.B.); (S.A.B.); (L.Y.K.)
| | - Lyudmila Y. Kokaeva
- Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119234 Moscow, Russia; (E.N.B.); (S.A.B.); (L.Y.K.)
| | - Alla V. Timofeeva
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.T.); (M.V.S.)
| | - Marina V. Serebryakova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.V.T.); (M.V.S.)
| | - Anna S. Barashkova
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, RAS, St. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia;
| | - Eugene A. Rogozhin
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, RAS, St. Miklukho-Maklaya, 16/10, 117997 Moscow, Russia;
| | - Marina L. Georgieva
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
- Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119234 Moscow, Russia; (E.N.B.); (S.A.B.); (L.Y.K.)
| | - Vera S. Sadykova
- Laboratory for Taxonomic Study and Collection of Cultures of Microorganisms, Gause Institute of New Antibiotics, St. Bolshaya Pirogovskaya, 11, 119021 Moscow, Russia; (A.E.K.); (I.A.G.); (M.A.S.); (T.A.E.); (N.N.M.); (E.A.R.)
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Eroğlu Gülümsek Ö, Erciyas Baykal E, Küçükpolat C, Önal E, Balcik-Ercin P, Yagci T, Ahsen V, Gürek AG. Bis[N,N′-bis(anilino)glioximato]platinum(II) complex: synthesis, characterization and biological activity. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2028779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Özge Eroğlu Gülümsek
- Department of Chemistry, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
| | - Esma Erciyas Baykal
- Department of Molecular Biology and Genetics, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
| | - Cansu Küçükpolat
- Department of Chemistry, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
| | - Emel Önal
- Department of Chemistry, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
- Faculty of Engineering, Doğuş University, Ümraniye, Turkey
| | - Pelin Balcik-Ercin
- Faculty of Science, Department of Biology, Dokuz Eylul University, İzmir, Turkey
| | - Tamer Yagci
- Department of Molecular Biology and Genetics, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
| | - Vefa Ahsen
- Department of Chemistry, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
| | - Ayşe Gül Gürek
- Department of Chemistry, Faculty of Fundamental Sciences, Gebze Technical University, Gebze, Turkey
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MiR-182-5p Modulates Prostate Cancer Aggressive Phenotypes by Targeting EMT Associated Pathways. Biomolecules 2022; 12:biom12020187. [PMID: 35204688 PMCID: PMC8961520 DOI: 10.3390/biom12020187] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/27/2021] [Accepted: 01/01/2022] [Indexed: 12/15/2022] Open
Abstract
Prostate cancer (PCa) is a clinically heterogeneous disease, where deregulation of epigenetic events, such as miRNA expression alterations, are determinants for its development and progression. MiR-182-5p, a member of the miR-183 family, when overexpressed has been associated with PCa tumor progression and decreased patients’ survival rates. In this study, we determined the regulatory role of miR-182-5p in modulating aggressive tumor phenotypes in androgen-refractory PCa cell lines (PC3 and DU-145). The transient transfection of the cell lines with miR-182-5p inhibitor and mimic systems, significantly affected cell proliferation, adhesion, migration, and the viability of the cells to the chemotherapeutic agents, docetaxel, and abiraterone. It also affected the protein expression levels of the tumor progression marker pAKT. These changes, however, were differentially observed in the cell lines studied. A comprehensive biological and functional enrichment analysis and miRNA/mRNA interaction revealed its strong involvement in the epithelial-mesenchymal transition (EMT) process; expression analysis of EMT markers in the PCa transfected cells directly or indirectly modulated the analyzed tumor phenotypes. In conclusion, miR-182-5p differentially impacts tumorigenesis in androgen-refractory PCa cells, in a compatible oncomiR mode of action by targeting EMT-associated pathways.
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Joushomme A, Garenne A, Dufossée M, Renom R, Ruigrok HJ, Chappe YL, Canovi A, Patrignoni L, Hurtier A, Poulletier de Gannes F, Lagroye I, Lévêque P, Lewis N, Priault M, Arnaud-Cormos D, Percherancier Y. Label-Free Study of the Global Cell Behavior during Exposure to Environmental Radiofrequency Fields in the Presence or Absence of Pro-Apoptotic or Pro-Autophagic Treatments. Int J Mol Sci 2022; 23:ijms23020658. [PMID: 35054844 PMCID: PMC8776001 DOI: 10.3390/ijms23020658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 02/01/2023] Open
Abstract
It remains controversial whether exposure to environmental radiofrequency signals (RF) impacts cell status or response to cellular stress such as apoptosis or autophagy. We used two label-free techniques, cellular impedancemetry and Digital Holographic Microscopy (DHM), to assess the overall cellular response during RF exposure alone, or during co-exposure to RF and chemical treatments known to induce either apoptosis or autophagy. Two human cell lines (SH-SY5Y and HCT116) and two cultures of primary rat cortex cells (astrocytes and co-culture of neurons and glial cells) were exposed to RF using an 1800 MHz carrier wave modulated with various environmental signals (GSM: Global System for Mobile Communications, 2G signal), UMTS (Universal Mobile Telecommunications System, 3G signal), LTE (Long-Term Evolution, 4G signal, and Wi-Fi) or unmodulated RF (continuous wave, CW). The specific absorption rates (S.A.R.) used were 1.5 and 6 W/kg during DHM experiments and ranged from 5 to 24 W/kg during the recording of cellular impedance. Cells were continuously exposed for three to five consecutive days while the temporal phenotypic signature of cells behavior was recorded at constant temperature. Statistical analysis of the results does not indicate that RF-EMF exposure impacted the global behavior of healthy, apoptotic, or autophagic cells, even at S.A.R. levels higher than the guidelines, provided that the temperature was kept constant.
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Affiliation(s)
- Alexandre Joushomme
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - André Garenne
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Mélody Dufossée
- Univ. Bordeaux, CNRS, IBGC/UMR 5095, F-33000 Bordeaux, France; (M.D.); (M.P.)
| | - Rémy Renom
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Hermanus Johannes Ruigrok
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Yann Loick Chappe
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Anne Canovi
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Lorenza Patrignoni
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Annabelle Hurtier
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Florence Poulletier de Gannes
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Isabelle Lagroye
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
- Paris Sciences et Lettres Research University, F-75006 Paris, France
| | - Philippe Lévêque
- Univ. Limoges, CNRS, XLIM/UMR 7252, F-87000 Limoges, France; (P.L.); (D.A.-C.)
| | - Noëlle Lewis
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Muriel Priault
- Univ. Bordeaux, CNRS, IBGC/UMR 5095, F-33000 Bordeaux, France; (M.D.); (M.P.)
| | - Delia Arnaud-Cormos
- Univ. Limoges, CNRS, XLIM/UMR 7252, F-87000 Limoges, France; (P.L.); (D.A.-C.)
- Institut Universitaire de France (IUF), F-75005 Paris, France
| | - Yann Percherancier
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
- Correspondence: ; Tel.: +33-5-40-00-27-24
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Storsberg J, Krüger-Genge A, Kalitukha L. In Vitro Cytotoxic Activity of an Aqueous Alkali Fomes fomentarius (Agaricomycetes) Extract on Murine Fibroblasts, Human Colorectal Adenocarcinoma and Cutaneous Melanoma Cells. Int J Med Mushrooms 2022; 24:1-13. [DOI: 10.1615/intjmedmushrooms.2022044657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lisby AN, Carlson RD, Baybutt TR, Weindorfer M, Snook AE. Evaluation of CAR-T cell cytotoxicity: Real-time impedance-based analysis. Methods Cell Biol 2022; 167:81-98. [DOI: 10.1016/bs.mcb.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kaya-Tilki E, Dikmen M. Neuroprotective effects of some epigenetic modifying drugs' on Chlamydia pneumoniae-induced neuroinflammation: A novel model. PLoS One 2021; 16:e0260633. [PMID: 34847172 PMCID: PMC8631675 DOI: 10.1371/journal.pone.0260633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 11/14/2021] [Indexed: 12/02/2022] Open
Abstract
Chlamydia pneumoniae (Cpn) is a gram-negative intracellular pathogen that causes a variety of pulmonary diseases, and there is growing evidence that it may play a role in Alzheimer's disease (AD) pathogenesis. Cpn can interact functionally with host histones, altering the host's epigenetic regulatory system by introducing bacterial products into the host tissue and inducing a persistent inflammatory response. Because Cpn is difficult to propagate, isolate, and detect, a modified LPS-like neuroinflammation model was established using lyophilized cell free supernatant (CFS) obtained from infected cell cultures, and the effects of CFS were compared to LPS. The neuroprotective effects of Trichostatin A (TSA), givinostat, and RG108, which are effective on epigenetic mechanisms, and the antibiotic rifampin, were studied in this newly introduced model and in the presence of amyloid beta (Aβ) 1-42. The neuroprotective effects of the drugs, as well as the effects of CFS and LPS, were evaluated in Aβ-induced neurotoxicity using a real-time cell analysis system, total ROS, and apoptotic impact. TSA, RG108, givinostat, and rifampin all demonstrated neuroprotective effects in both this novel model and Aβ-induced neurotoxicity. The findings are expected to provide early evidence on neuroprotective actions against Cpn-induced neuroinflammation and Aβ-induced neurotoxicity, which could represent a new treatment option for AD, for which there are currently few treatment options.
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Affiliation(s)
- Elif Kaya-Tilki
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Miriş Dikmen
- Department of Pharmacology, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
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Investigation of Novel Small Molecular TRPM4 Inhibitors in Colorectal Cancer Cells. Cancers (Basel) 2021; 13:cancers13215400. [PMID: 34771564 PMCID: PMC8582472 DOI: 10.3390/cancers13215400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Transient receptor potential melastatin 4 (TRPM4) ion channel malfunction or aberrant expression is implicated in many diseases, including different cancers and cardiovascular diseases. Currently, there is a need for specific and potent TRPM4 inhibitors. They would allow to study the role of TRPM4 in disease models and to validate it as a potential target in therapies, including anti-cancer therapy. In colorectal cancer (CRC), TRPM4 is upregulated, and its conductivity plays a role in the regulation of viability and cell cycle of CRC cells. In this study, we tested three novel TRPM4 inhibitors, CBA, NBA, and LBA, in CRC cells. In HCT116 cells, we show that NBA inhibits TRPM4 currents in the micromolar range and alters proliferation and cell cycle. Furthermore, NBA decreases the viability of Colo205 cells. This makes NBA a promising candidate for further evaluation as a specific TRPM4 inhibitor in other cellular systems and disease models. Abstract (1) Background: Transient receptor potential melastatin (TRPM4) ion channel aberrant expression or malfunction contributes to different types of cancer, including colorectal cancer (CRC). However, TRPM4 still needs to be validated as a potential target in anti-cancer therapy. Currently, the lack of potent and selective TRPM4 inhibitors limits further studies on TRPM4 in cancer disease models. In this study, we validated novel TRPM4 inhibitors, CBA, NBA, and LBA, in CRC cells. (2) Methods: The potency to inhibit TRPM4 conductivity in CRC cells was assessed with the whole-cell patch clamp technique. Furthermore, the impact of TRPM4 inhibitors on cellular functions, such as viability, proliferation, and cell cycle, were assessed in cellular assays. (3) Results: We show that in CRC cells, novel TRPM4 inhibitors irreversibly block TRPM4 currents in a low micromolar range. NBA decreases proliferation and alters the cell cycle in HCT116 cells. Furthermore, NBA reduces the viability of the Colo205 cell line, which highly expresses TRPM4. (4) Conclusions: NBA is a promising new TRPM4 inhibitor candidate, which could be used to study the role of TRPM4 in cancer disease models and other diseases.
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Dong M, Oyunbaatar NE, Kanade PP, Kim DS, Lee DW. Real-Time Monitoring of Changes in Cardiac Contractility Using Silicon Cantilever Arrays Integrated with Strain Sensors. ACS Sens 2021; 6:3556-3563. [PMID: 34554741 DOI: 10.1021/acssensors.1c00486] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This paper proposes the use of sensor-integrated silicon cantilever arrays to measure drug-induced cardiac toxicity in real time. The proposed cantilever sensors, unlike the conventional electrophysiological methods, aim to evaluate cardiac toxicity by measuring the contraction force of the cardiomyocytes corresponding to the target drugs. The surface of the silicon cantilever consists of microgrooves to maximize the alignment and the contraction force of the cardiomyocytes. This type of surface pattern also helps in the maturation of the cardiomyocytes by increasing the sarcomere length. The preliminary characterization of the cantilever sensors was performed on the cantilever surface, with the cardiomyocytes seeded with a density of 1000 cells/mm2, and the cardiac contractility was measured as a function of the culture days. The change in the contraction force of the cardiomyocytes due to the drug concentration was successfully measured through the integrated strain sensor in the culture media. The reliability of the sensor-integrated cantilevers and the feasibility of their mass production ensure that they meet the practical requirements in the medical applications.
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Affiliation(s)
- Mingming Dong
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University, Gwangju 61186, Korea
| | - Nomin-Erdene Oyunbaatar
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University, Gwangju 61186, Korea
| | - Pooja P. Kanade
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University, Gwangju 61186, Korea
| | - Dong-Su Kim
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University, Gwangju 61186, Korea
| | - Dong-Weon Lee
- MEMS and Nanotechnology Laboratory, School of Mechanical Systems Engineering, Chonnam National University, Gwangju 61186, Korea
- Center for Next Generation Sensor Research and Development, Chonnam National University, Gwangju 61186, Korea
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Luong A, Cerignoli F, Abassi Y, Heisterkamp N, Abdel-Azim H. Analysis of acute lymphoblastic leukemia drug sensitivity by changes in impedance via stromal cell adherence. PLoS One 2021; 16:e0258140. [PMID: 34591931 PMCID: PMC8483355 DOI: 10.1371/journal.pone.0258140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 09/19/2021] [Indexed: 11/18/2022] Open
Abstract
The bone marrow is a frequent location of primary relapse after conventional cytotoxic drug treatment of human B-cell precursor acute lymphoblastic leukemia (BCP-ALL). Because stromal cells have a major role in promoting chemotherapy resistance, they should be included to more realistically model in vitro drug treatment. Here we validated a novel application of the xCELLigence system as a continuous co-culture to assess long-term effects of drug treatment on BCP-ALL cells. We found that bone marrow OP9 stromal cells adhere to the electrodes but are progressively displaced by dividing patient-derived BCP-ALL cells, resulting in reduction of impedance over time. Death of BCP-ALL cells due to drug treatment results in re-adherence of the stromal cells to the electrodes, increasing impedance. Importantly, vincristine inhibited proliferation of sensitive BCP-ALL cells in a dose-dependent manner, correlating with increased impedance. This system was able to discriminate sensitivity of two relapsed Philadelphia chromosome (Ph) positive ALLs to four different targeted kinase inhibitors. Moreover, differences in sensitivity of two CRLF2-drivenBCP-ALL cell lines to ruxolitinib were also seen. These results show that impedance can be used as a novel approach to monitor drug treatment and sensitivity of primary BCP-ALL cells in the presence of protective microenvironmental cells.
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Affiliation(s)
- Annie Luong
- Division of Hematology, Oncology and Bone Marrow Transplantation, Children's Hospital Los Angeles, Los Angeles, CA, United States of America
| | - Fabio Cerignoli
- Agilent Technologies, Inc., Santa Clara, CA, United States of America
| | - Yama Abassi
- Agilent Technologies, Inc., Santa Clara, CA, United States of America
| | - Nora Heisterkamp
- Department of Systems Biology, Beckman Research Institute City of Hope, Monrovia, CA, United States of America
| | - Hisham Abdel-Azim
- Division of Hematology, Oncology and Bone Marrow Transplantation, Children's Hospital Los Angeles, Los Angeles, CA, United States of America.,Keck School of Medicine, University of Southern California, Los Angeles, CA, United States of America
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Krüger-Genge A, Jung CGH, Braune S, Harb K, Westphal S, Klöpzig S, Küpper JH, Jung F. Effect of Arthrospira powders from different producers on the formation of endothelial cell monolayers. Clin Hemorheol Microcirc 2021; 79:193-203. [PMID: 34487037 DOI: 10.3233/ch-219200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Arthrospira platensis (AP) and some of its derived products have well-established biological activities as antioxidants or as agents to reduce cardiovascular disease risk factors. Furthermore, AP products have gained increasing importance as potential anti-cancer agents. However, the ingredients of the available products vary greatly with the origin, the type of production and processing, which could have significant consequences for their biological effects. Therefore, the composition and biological influence of five distinct AP powders, which were acquired commercially or produced at a public biotechnology institute, were investigated in regard to their endothelialization capacity using a cell impedance- (CI) based measurement method. The study revealed that the AP composition and especially the influence on HUVEC proliferation differed significantly between the five AP powders up to 109%.Thus, it could be shown that the method used allows the reliable detection of quantitative differences in biological effects of different AP preparations.
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Affiliation(s)
- A Krüger-Genge
- Fraunhofer Institute for Applied Polymer Research (IAP), Department of Biomaterials, Healthcare and Cosmeceuticals, Potsdam-Golm, Germany
| | - C G H Jung
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
| | - S Braune
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
| | - K Harb
- Fraunhofer Institute for Applied Polymer Research (IAP), Department of Biomaterials, Healthcare and Cosmeceuticals, Potsdam-Golm, Germany
| | - S Westphal
- Fraunhofer Institute for Applied Polymer Research (IAP), Department of Biomaterials, Healthcare and Cosmeceuticals, Potsdam-Golm, Germany
| | - S Klöpzig
- Fraunhofer Institute for Applied Polymer Research (IAP), Department of Biomaterials, Healthcare and Cosmeceuticals, Potsdam-Golm, Germany
| | - J-H Küpper
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
| | - F Jung
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
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Krüger-Genge A, Steinbrecht S, Jung CGH, Westphal S, Klöpzig S, Waldeck P, Küpper JH, Storsberg J, Jung F. Arthrospira platensis accelerates the formation of an endothelial cell monolayer and protects against endothelial cell detachment after bacterial contamination. Clin Hemorheol Microcirc 2021; 78:151-161. [PMID: 33554896 DOI: 10.3233/ch-201096] [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] [Indexed: 12/27/2022]
Abstract
Within the last years a comprehensive number of scientific studies demonstrated beneficial effect of Arthropira platensis (AP) as dietary supplement due to a high content of proteins, minerals and vitamins. Positive effects like promoting the immune system, reducing inflammation and an anti-oxidant capacity are reported. In this study, the effect of an aqueous AP extract on primary human venous endothelial cells (HUVEC) was investigated. In addition, the effect of AP on HUVEC treated with a bacterial toxin (lipopolysaccharide, LPA), inducing an activation of HUVEC and cellular detachment, was analyzed. Depending on the concentration of AP extract a significantly accelerated formation of an endothelial cell monolayer was observed. Furthermore, the detachment of HUVEC after LPA addition was dramatically reduced by AP. In conclusion, the data are promising and indicatory for an application of Arthrospira platensis in the clinical field.
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Affiliation(s)
- A Krüger-Genge
- Fraunhofer Institute for Applied Polymer Research (IAP), Potsdam-Golm, Germany
| | - S Steinbrecht
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
| | - C G H Jung
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
| | - Sophia Westphal
- Fraunhofer Institute for Applied Polymer Research (IAP), Potsdam-Golm, Germany
| | - Stefanie Klöpzig
- Fraunhofer Institute for Applied Polymer Research (IAP), Potsdam-Golm, Germany
| | - P Waldeck
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
| | - J-H Küpper
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany.,Carbon Biotech, Social Enterprise Stiftungs AG, Senftenberg, Germany
| | - J Storsberg
- Fraunhofer Institute for Applied Polymer Research (IAP), Potsdam-Golm, Germany
| | - F Jung
- Institute of Biotechnology, Molecular Cell Biology, Brandenburg University of Technology, Senftenberg, Germany
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Chirică IM, Enciu AM, Tite T, Dudău M, Albulescu L, Iconaru SL, Predoi D, Pasuk I, Enculescu M, Radu C, Mihalcea CG, Popa AC, Rusu N, Niţă S, Tănase C, Stan GE. The Physico-Chemical Properties and Exploratory Real-Time Cell Analysis of Hydroxyapatite Nanopowders Substituted with Ce, Mg, Sr, and Zn (0.5-5 at.%). MATERIALS 2021; 14:ma14143808. [PMID: 34300727 PMCID: PMC8305395 DOI: 10.3390/ma14143808] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 12/17/2022]
Abstract
Cation-substituted hydroxyapatite (HA), standalone or as a composite (blended with polymers or metals), is currently regarded as a noteworthy candidate material for bone repair/regeneration either in the form of powders, porous scaffolds or coatings for endo-osseous dental and orthopaedic implants. As a response to the numerous contradictions reported in literature, this work presents, in one study, the physico-chemical properties and the cytocompatibility response of single cation-doped (Ce, Mg, Sr or Zn) HA nanopowders in a wide concentration range (0.5–5 at.%). The modification of composition, morphology, and structure was multiparametrically monitored via energy dispersive X-ray, X-ray photoelectron, Fourier-transform infrared and micro-Raman spectroscopy methods, as well as by transmission electron microscopy and X-ray diffraction. From a compositional point of view, Ce and Sr were well-incorporated in HA, while slight and pronounced deviations were observed for Mg and Zn, respectively. The change of the lattice parameters, crystallite size, and substituting cation occupation factors either in the Ca(I) or Ca(II) sites were further determined. Sr produced the most important HA structural changes. The in vitro biological performance was evaluated by the (i) determination of leached therapeutic cations (by inductively coupled plasma mass spectrometry) and (ii) assessment of cell behaviour by both conventional assays (e.g., proliferation—3-(4,5-dimethyl thiazol-2-yl) 5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium assay; cytotoxicity—lactate dehydrogenase release assay) and, for the first time, real-time cell analysis (RTCA). Three cell lines were employed: fibroblast, osteoblast, and endothelial. When monophasic, the substituted HA supported the cells’ viability and proliferation without signs of toxicity. The RTCA results indicate the excellent adherence of cells. The study strived to offer a perspective on the behaviour of Ce-, Mg-, Sr-, or Zn-substituted HAs and to deliver a well-encompassing viewpoint on their effects. This can be highly important for the future development of such bioceramics, paving the road toward the identification of candidates with highly promising therapeutic effects.
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Affiliation(s)
- Iuliana Maria Chirică
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
- Faculty of Physics, University of Bucharest, RO-077125 Măgurele, Romania
| | - Ana-Maria Enciu
- “Victor Babes” National Institute of Pathology, RO-050096 Bucharest, Romania; (A.-M.E.); (M.D.); (L.A.)
- Department of Cellular Biology and Histology, “Carol Davila” University of Medicine and Pharmacy, RO-050047 Bucharest, Romania
| | - Teddy Tite
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
- Correspondence: (T.T.); (C.T.); (G.E.S.); Tel./Fax: +40-21-319-4528 (C.T.); Tel.: +40-21-241-8128 (G.E.S.); Fax: +40-21-369-0177 (G.E.S.)
| | - Maria Dudău
- “Victor Babes” National Institute of Pathology, RO-050096 Bucharest, Romania; (A.-M.E.); (M.D.); (L.A.)
- Department of Cellular Biology and Histology, “Carol Davila” University of Medicine and Pharmacy, RO-050047 Bucharest, Romania
| | - Lucian Albulescu
- “Victor Babes” National Institute of Pathology, RO-050096 Bucharest, Romania; (A.-M.E.); (M.D.); (L.A.)
| | - Simona Liliana Iconaru
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
| | - Daniela Predoi
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
| | - Iuliana Pasuk
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
| | - Monica Enculescu
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
| | - Cristian Radu
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
- Faculty of Physics, University of Bucharest, RO-077125 Măgurele, Romania
| | - Cătălina Gabriela Mihalcea
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
- Faculty of Physics, University of Bucharest, RO-077125 Măgurele, Romania
| | - Adrian-Claudiu Popa
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
| | - Nicoleta Rusu
- National Institute for Chemical Pharmaceutical Research and Development, RO-031299 Bucharest, Romania; (N.R.); (S.N.)
| | - Sultana Niţă
- National Institute for Chemical Pharmaceutical Research and Development, RO-031299 Bucharest, Romania; (N.R.); (S.N.)
| | - Cristiana Tănase
- “Victor Babes” National Institute of Pathology, RO-050096 Bucharest, Romania; (A.-M.E.); (M.D.); (L.A.)
- “Nicolae Cajal” Institute, “Titu Maiorescu” University, RO-004051 Bucharest, Romania
- Correspondence: (T.T.); (C.T.); (G.E.S.); Tel./Fax: +40-21-319-4528 (C.T.); Tel.: +40-21-241-8128 (G.E.S.); Fax: +40-21-369-0177 (G.E.S.)
| | - George E. Stan
- National Institute of Materials Physics, RO-077125 Măgurele, Romania; (I.M.C.); (S.L.I.); (D.P.); (I.P.); (M.E.); (C.R.); (C.G.M.); (A.-C.P.)
- Correspondence: (T.T.); (C.T.); (G.E.S.); Tel./Fax: +40-21-319-4528 (C.T.); Tel.: +40-21-241-8128 (G.E.S.); Fax: +40-21-369-0177 (G.E.S.)
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Magtaan JK, Fitzpatrick B, Murphy R. Elucidating the Biological Activity of Fish-Derived Collagen and Gelatine Hydrolysates using Animal Cell Culture - A Review. Curr Pharm Des 2021; 27:1365-1381. [PMID: 33302859 DOI: 10.2174/1381612826666201210112119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/01/2020] [Indexed: 11/22/2022]
Abstract
A large percentage of a fish's weight is generally discarded during fish processing. Reducing the waste products of marine origin is a subject of great interest within the scientific community. Pelagic byproducts, such as the structural protein collagen, which can be generated during the processing of fish, have been proposed as an alternative to terrestrial, mammalian sources due to advantages including high availability and low risk of zoonotic disease transmission. Gelatine has multiple possible applications, ranging from nutraceutical applications to cosmetics and has the advantage of being generally regarded as safe. In this multidisciplinary review, the chemistry of gelatine and its parent protein collagen, the chemical reactions to generate their hydrolysates, and studies on their biological activities using animal cell culture are discussed.
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Affiliation(s)
- Jordan Kevin Magtaan
- School of Health & Human Performance, Dublin City University, Glasnevin, Dublin 9, Ireland
| | | | - Ronan Murphy
- School of Health & Human Performance, Dublin City University, Glasnevin, Dublin 9, Ireland
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Zhao Y, Albrecht E, Stange K, Li Z, Schregel J, Sciascia QL, Metges CC, Maak S. Glutamine supplementation stimulates cell proliferation in skeletal muscle and cultivated myogenic cells of low birth weight piglets. Sci Rep 2021; 11:13432. [PMID: 34183762 PMCID: PMC8239033 DOI: 10.1038/s41598-021-92959-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/17/2021] [Indexed: 11/25/2022] Open
Abstract
Muscle growth of low birth weight (LBW) piglets may be improved with adapted nutrition. This study elucidated effects of glutamine (Gln) supplementation on the cellular muscle development of LBW and normal birth weight (NBW) piglets. Male piglets (n = 144) were either supplemented with 1 g Gln/kg body weight or an isonitrogeneous amount of alanine (Ala) between postnatal day 1 and 12 (dpn). Twelve piglets per group were slaughtered at 5, 12 and 26 dpn, one hour after injection with Bromodeoxyuridine (BrdU, 12 mg/kg). Muscle samples were collected and myogenic cells were isolated and cultivated. Expression of muscle growth related genes was quantified with qPCR. Proliferating, BrdU-positive cells in muscle sections were detected with immunohistochemistry indicating different cell types and decreasing proliferation with age. More proliferation was observed in muscle tissue of LBW-GLN than LBW-ALA piglets at 5 dpn, but there was no clear effect of supplementation on related gene expression. Cell culture experiments indicated that Gln could promote cell proliferation in a dose dependent manner, but expression of myogenesis regulatory genes was not altered. Overall, Gln supplementation stimulated cell proliferation in muscle tissue and in vitro in myogenic cell culture, whereas muscle growth regulatory genes were barely altered.
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Affiliation(s)
- Yaolu Zhao
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Muscle Biology and Growth, 18196, Dummerstorf, Germany
| | - Elke Albrecht
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Muscle Biology and Growth, 18196, Dummerstorf, Germany.
| | - Katja Stange
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Muscle Biology and Growth, 18196, Dummerstorf, Germany
| | - Zeyang Li
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner", 18196, Dummerstorf, Germany
| | - Johannes Schregel
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner", 18196, Dummerstorf, Germany
| | - Quentin L Sciascia
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner", 18196, Dummerstorf, Germany
| | - Cornelia C Metges
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner", 18196, Dummerstorf, Germany
| | - Steffen Maak
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Muscle Biology and Growth, 18196, Dummerstorf, Germany
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Ibrahim AMH, Takacova M, Jelenska L, Csaderova L, Balog M, Kopacek J, Svastova E, Krizik P. The effect of surface modification of TiMg composite on the in-vitro degradation response, cell survival, adhesion, and proliferation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112259. [PMID: 34225844 DOI: 10.1016/j.msec.2021.112259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/21/2021] [Accepted: 06/07/2021] [Indexed: 11/16/2022]
Abstract
This study is aimed to evaluate the influence of mechanical surface treatment on the degradation response, cell survival, adhesion, and proliferation of a TiMg composite material. Two sets of the TiMg samples with different surface characteristics were studied: i) as-machined samples (TiMg-T) and ii) samples with a mechanically modified surface (TiMg-P). Surface roughness was determined using a confocal microscope. Degradation rates (DR) were evaluated in artificial Plasma, HBSS, and NaCl 0.9%. The cell viability was evaluated using an MTT assay. The initial cell adhesion and spreading were investigated using the direct contact assay. An xCELLigence system was employed to provide real-time cell proliferation. The focal adhesion and cell morphological changes were also examined. The DR of TiMg-P decreased by ⁓5 times compared with that of TiMg-T. Surface of the TiMg-P specimens after 72 h exposure to either HBSS or Plasma was passivated by a layer enriched with bioactive Ca/P species. The cell viability of L929 and Saos-2 after 72 h incubation for TiMg-P was 94.6% and 94.8% compared with 73.8% and 74.3% obtained for TiMg-T, respectively. The direct contact assay showed that the initial adhesion and spreading of the L929 cells incubated with TiMg-P was more pronounced compared with that of TiMg-T. The proliferation rate of Saos-2 cells incubated with TiMg-P was higher when compared with that of TiMg-T, and was almost comparable to that of the DMEM-blank between the 24 and 72 h interval. TiMg-P had a pronounced difference in the number and area of Focal Adhesions (FA) compared with that of TiMg-T. The morphology of cells incubated with TiMg-P was not altered. The results confirmed that the smooth and less strained surface of the TiMg-P samples effectively improved the in-vitro degradation response, cell survival, adhesion, and proliferation.
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Affiliation(s)
- Ahmed Mohamed Hassan Ibrahim
- Institute of Materials and Machine Mechanics, The Slovak Academy of Sciences, Dubravska cesta 9, 84513 Bratislava, Slovakia; Centre of Excellence for Advanced Materials Application, The Slovak Academy of Sciences, Dubravska cesta 9, 84511 Bratislava, Slovakia; Institute of Materials Science, Faculty of Materials Science and Technology in Trnava, Slovak University of Technology in Bratislava, Paulinska 16, 91724 Trnava, Slovakia
| | - Martina Takacova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, The Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Lenka Jelenska
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, The Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Lucia Csaderova
- Biomedical Research Center, Institute of Virology, Department of Cancer Biology, The Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Martin Balog
- Institute of Materials and Machine Mechanics, The Slovak Academy of Sciences, Dubravska cesta 9, 84513 Bratislava, Slovakia; Centre of Excellence for Advanced Materials Application, The Slovak Academy of Sciences, Dubravska cesta 9, 84511 Bratislava, Slovakia.
| | - Juraj Kopacek
- Centre of Excellence for Advanced Materials Application, The Slovak Academy of Sciences, Dubravska cesta 9, 84511 Bratislava, Slovakia; Biomedical Research Center, Institute of Virology, Department of Cancer Biology, The Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Eliska Svastova
- Centre of Excellence for Advanced Materials Application, The Slovak Academy of Sciences, Dubravska cesta 9, 84511 Bratislava, Slovakia; Biomedical Research Center, Institute of Virology, Department of Cancer Biology, The Slovak Academy of Sciences, Dubravska cesta 9, 84505 Bratislava, Slovakia
| | - Peter Krizik
- Institute of Materials and Machine Mechanics, The Slovak Academy of Sciences, Dubravska cesta 9, 84513 Bratislava, Slovakia
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Ruksakiet K, Stercz B, Tóth G, Jaikumpun P, Gróf I, Tengölics R, Lohinai ZM, Horváth P, Deli MA, Steward MC, Dobay O, Zsembery Á. Bicarbonate Evokes Reciprocal Changes in Intracellular Cyclic di-GMP and Cyclic AMP Levels in Pseudomonas aeruginosa. BIOLOGY 2021; 10:biology10060519. [PMID: 34200909 PMCID: PMC8230467 DOI: 10.3390/biology10060519] [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: 05/17/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 11/23/2022]
Abstract
The formation of Pseudomonas aeruginosa biofilms in cystic fibrosis (CF) is one of the most common causes of morbidity and mortality in CF patients. Cyclic di-GMP and cyclic AMP are second messengers regulating the bacterial lifestyle transition in response to environmental signals. We aimed to investigate the effects of extracellular pH and bicarbonate on intracellular c-di-GMP and cAMP levels, and on biofilm formation. P. aeruginosa was inoculated in a brain−heart infusion medium supplemented with 25 and 50 mM NaCl in ambient air (pH adjusted to 7.4 and 7.7 respectively), or with 25 and 50 mM NaHCO3 in 5% CO2 (pH 7.4 and 7.7). After 16 h incubation, c-di-GMP and cAMP were extracted and their concentrations determined. Biofilm formation was investigated using an xCelligence real-time cell analyzer and by crystal violet assay. Our results show that HCO3− exposure decreased c-di-GMP and increased cAMP levels in a dose-dependent manner. Biofilm formation was also reduced after 48 h exposure to HCO3−. The reciprocal changes in second messenger concentrations were not influenced by changes in medium pH or osmolality. These findings indicate that HCO3− per se modulates the levels of c-di-GMP and cAMP, thereby inhibiting biofilm formation and promoting the planktonic lifestyle of the bacteria.
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Affiliation(s)
- Kasidid Ruksakiet
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (K.R.); (P.J.); (M.C.S.)
- Department of Conservative Dentistry, Semmelweis University, H-1085 Budapest, Hungary;
| | - Balázs Stercz
- Institute of Medical Microbiology, Faculty of Medicine, Semmelweis University, H-1089 Budapest, Hungary; (B.S.); (O.D.)
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1092 Budapest, Hungary; (G.T.); (P.H.)
| | - Pongsiri Jaikumpun
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (K.R.); (P.J.); (M.C.S.)
| | - Ilona Gróf
- Institute of Biophysics, Biological Research Centre, H-6726 Szeged, Hungary; (I.G.); (M.A.D.)
| | - Roland Tengölics
- Institute of Biochemistry, Biological Research Centre, H-6726 Szeged, Hungary;
- HCEMM-BRC Metabolic Systems Biology Laboratory, H-6726 Szeged, Hungary
| | - Zsolt M. Lohinai
- Department of Conservative Dentistry, Semmelweis University, H-1085 Budapest, Hungary;
| | - Péter Horváth
- Department of Pharmaceutical Chemistry, Semmelweis University, H-1092 Budapest, Hungary; (G.T.); (P.H.)
| | - Mária A. Deli
- Institute of Biophysics, Biological Research Centre, H-6726 Szeged, Hungary; (I.G.); (M.A.D.)
| | - Martin C. Steward
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (K.R.); (P.J.); (M.C.S.)
- School of Medical Sciences, University of Manchester, Manchester M13 9PL, UK
| | - Orsolya Dobay
- Institute of Medical Microbiology, Faculty of Medicine, Semmelweis University, H-1089 Budapest, Hungary; (B.S.); (O.D.)
| | - Ákos Zsembery
- Department of Oral Biology, Semmelweis University, H-1089 Budapest, Hungary; (K.R.); (P.J.); (M.C.S.)
- Correspondence:
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Yu W, Gillespie KP, Chhay B, Svensson AS, Nygren PÅ, Blair IA, Yu F, Tsourkas A. Efficient Labeling of Native Human IgG by Proximity-Based Sortase-Mediated Isopeptide Ligation. Bioconjug Chem 2021; 32:1058-1066. [PMID: 34029057 DOI: 10.1021/acs.bioconjchem.1c00099] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Antibody-drug conjugates (ADCs) have demonstrated great therapeutic potential due to their ability to target the delivery of potent cytotoxins. However, the heterogeneous nature of conventional drug conjugation strategies can affect the safety, efficacy, and stability of ADCs. Site-specific conjugations can resolve these issues, but often require genetic modification of Immunoglobulin G (IgG), which can impact yield or cost of production, or require undesirable chemical linkages. Here, we describe a near-traceless conjugation method that enables the efficient modification of native IgG, without the need for genetic engineering or glycan modification. This method utilizes engineered variants of sortase A to catalyze noncanonical isopeptide ligation. Sortase A was fused to an antibody-binding domain to improve ligation efficiency. Antibody labeling is limited to five lysine residues on the heavy chain and one on the light chain of human IgG1. The ADCs exhibit conserved antigen and Fc-receptor interactions, as well as potent cytolytic activity.
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Affiliation(s)
- Wendy Yu
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Kevin P Gillespie
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Bonirath Chhay
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Anne-Sophie Svensson
- Department of Protein Science, School of Engineering Sciences in Chemistry, Biotechnology, and Health, KTH-Royal Institute of Technology, Stockholm, Sweden and Sonia SE-100-44 Sweden
| | - Per-Åke Nygren
- Department of Protein Science, School of Engineering Sciences in Chemistry, Biotechnology, and Health, KTH-Royal Institute of Technology, Stockholm, Sweden and Sonia SE-100-44 Sweden
| | - Ian A Blair
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Feifan Yu
- AlphaThera, LLC, Philadelphia, Pennsylvania 19146, United States
| | - Andrew Tsourkas
- Department of Bioengineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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Comparison of Leading Biosensor Technologies to Detect Changes in Human Endothelial Barrier Properties in Response to Pro-Inflammatory TNFα and IL1β in Real-Time. BIOSENSORS-BASEL 2021; 11:bios11050159. [PMID: 34069959 PMCID: PMC8157866 DOI: 10.3390/bios11050159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/13/2021] [Accepted: 05/13/2021] [Indexed: 01/07/2023]
Abstract
Electric Cell-Substrate Impedance Sensing (ECIS), xCELLigence and cellZscope are commercially available instruments that measure the impedance of cellular monolayers. Despite widespread use of these systems individually, direct comparisons between these platforms have not been published. To compare these instruments, the responses of human brain endothelial monolayers to TNFα and IL1β were measured on all three platforms simultaneously. All instruments detected transient changes in impedance in response to the cytokines, although the response magnitude varied, with ECIS being the most sensitive. ECIS and cellZscope were also able to attribute responses to particular endothelial barrier components by modelling the multifrequency impedance data acquired by these instruments; in contrast the limited frequency xCELLigence data cannot be modelled. Consistent with its superior impedance sensing, ECIS exhibited a greater capacity than cellZscope to distinguish between subtle changes in modelled endothelial monolayer properties. The reduced resolving ability of the cellZscope platform may be due to its electrode configuration, which is necessary to allow access to the basolateral compartment, an important advantage of this instrument. Collectively, this work demonstrates that instruments must be carefully selected to ensure they are appropriate for the experimental questions being asked when assessing endothelial barrier properties.
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Wu A, Zhang L, Luo N, Zhang L, Li L, Liu Q. Limb-bud and heart (LBH) inhibits cellular migration, invasion and epithelial-mesenchymal transition in nasopharyngeal carcinoma via downregulating αB-crystallin expression. Cell Signal 2021; 85:110045. [PMID: 34000384 DOI: 10.1016/j.cellsig.2021.110045] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 04/06/2021] [Accepted: 05/12/2021] [Indexed: 02/07/2023]
Abstract
Limb-bud and heart (LBH) gene has received increasing attention in recent cancer studies. Here we investigated the role of the LBH gene in regulating the metastasis capacity and epithelial-mesenchymal transition (EMT) of nasopharyngeal carcinoma (NPC) cells, and its potential mechanism. The expressions of LBH and αB-crystallin (CRYAB) were modulated by lentiviral infection, or plasmid/siRNA transfection, and the phosphorylation of p38 was suppressed by an inhibitor, to explore their functions in modulating NPC cell phenotypes, as well as the relationships of these factors with each other. Cellular proliferation, migration and invasion were examined by RTCA system, Transwell assays and Matrigel Transwell assays respectively. The EMT progression was indicated by RT-qPCR and Western blotting measuring the expressions of EMT biomarkers. NPC xenografts were constrcucted, and formed tumors were sectioned for morphology and immunohistofluorescence. The interaction between LBH and CRYAB was examined by colocalization and Fluorescence resonance energy transfer (FRET) analysis. We reached the conclusion that LBH inhibits the proliferation, migration, invasion and EMT of NPC cells, and its effects were partially achieved by suppressing p38 phosphorylation, which subsequently downregulates the mRNA expression and phosphorylation of CRYAB, while CRYAB directly interacts with LBH in NPC cells. This LBH-related pathway we revealed provides a novel therapeutic target for nasopharyngeal carcinoma research.
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Affiliation(s)
- Anbiao Wu
- Department of Cardiology, Laboratory of Heart Center, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Zhujiang Hospital, Southern Medical University, 253# Middle Industrial Avenue, Guangzhou 510280, PR China
| | - Ling Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651# Dongfeng Road East, Guangzhou 510060, PR China
| | - Ning Luo
- Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Department of Nephrology, the First Affiliated Hospital, Sun Yat-sen University, 58# Zhongshan 2nd Avenue, Guangzhou 510080, PR China
| | - Lihong Zhang
- Department of Cardiology, Laboratory of Heart Center, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Zhujiang Hospital, Southern Medical University, 253# Middle Industrial Avenue, Guangzhou 510280, PR China
| | - Li Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carinoma Diagnosis and Therapy, Sun Yat-sen University Cancer Center, 651# Dongfeng Road East, Guangzhou 510060, PR China.
| | - Qicai Liu
- Department of Cardiology, Laboratory of Heart Center, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Zhujiang Hospital, Southern Medical University, 253# Middle Industrial Avenue, Guangzhou 510280, PR China; Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China.
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PEDOT:PSS organic electrochemical transistors for electrical cell-substrate impedance sensing down to single cells. Biosens Bioelectron 2021; 180:113101. [DOI: 10.1016/j.bios.2021.113101] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/06/2021] [Accepted: 02/15/2021] [Indexed: 12/26/2022]
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