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Sang D, Luo X, Liu J. Biological Interaction and Imaging of Ultrasmall Gold Nanoparticles. Nanomicro Lett 2023; 16:44. [PMID: 38047998 PMCID: PMC10695915 DOI: 10.1007/s40820-023-01266-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023]
Abstract
The ultrasmall gold nanoparticles (AuNPs), serving as a bridge between small molecules and traditional inorganic nanoparticles, create significant opportunities to address many challenges in the health field. This review discusses the recent advances in the biological interactions and imaging of ultrasmall AuNPs. The challenges and the future development directions of the ultrasmall AuNPs are presented.
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Affiliation(s)
- Dongmiao Sang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Xiaoxi Luo
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China
| | - Jinbin Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, People's Republic of China.
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2
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Pietrowski D, Grgic M, Haslinger I, Marschalek J, Schneeberger C. Co-cultivation of human granulosa cells with ovarian cancer cells leads to a significant increase in progesterone production. Arch Gynecol Obstet 2023; 307:1593-1597. [PMID: 36651983 PMCID: PMC10110669 DOI: 10.1007/s00404-023-06914-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023]
Abstract
PURPOSE In humans, granulosa cells (GCs) are part of the follicle and nourish the growing oocyte. GCs produce estrogen and, after ovulation, progesterone. They are embedded in a multicellular tissue structure of the ovary, which consists of a variety of different cell types that are essential for the physiological function of the ovary. However, the extent to which individual ovarian cell types contribute to overall functionality has not yet been fully elucidated. In this study, we aim to investigate the effects of co-culturing human granulosa cells with ovarian cancer cells on their progesterone and estrogen production in an in vitro model. METHODS After seeding, the cells were stimulated with 200 µM forskolin in DMEM for 72 h and the medium of the different cell culture experiments was collected. Subsequently, progesterone and oestradiol concentrations were determined using an Elisa assay. RESULTS Morphologically, it was striking that the cells self-organize and form spatially separated areas. Compared to culturing granulosa cells alone, co-culturing human granulosa cells together with the ovarian cancer cell line OvCar-3 resulted in a significant increase in progesterone production (20.3 ng/ml versus 50.2 ng/ml; p < 0.01). CONCLUSIONS Using a simple in vitro model, we highlight the importance of cellular crosstalk between different ovarian cells in a complex cellular network and that it strongly influences granulosa cell hormone production. This could have potential implications for the procedure of transplanting endocrine tissues after cryopreservation, as it highlights the importance of survival of all cells for the functionality of the transplanted tissue.
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Affiliation(s)
- Detlef Pietrowski
- Department of Obstetrics and Gynecology, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria.
| | - Martina Grgic
- FH Campus Wien, University of Applied Science, Vienna, Austria
| | - Isabella Haslinger
- Department of Obstetrics and Gynecology, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
| | - Julian Marschalek
- Department of Obstetrics and Gynecology, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
| | - Christian Schneeberger
- Department of Obstetrics and Gynecology, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
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Liang SXT, Djearamane S, Tanislaus Antony Dhanapal AC, Wong LS. Impact of silver nanoparticles on the nutritional properties of Arthrospira platensis. PeerJ 2022; 10:e13972. [PMID: 36248713 PMCID: PMC9563293 DOI: 10.7717/peerj.13972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/09/2022] [Indexed: 01/19/2023] Open
Abstract
Background Arthrospira platensis is farmed worldwide due to its nutrient-rich properties and provides multiple benefits to human health. However, the wide usage of silver nanoparticles (Ag NPs) causes pollution which may affect the nutritional quality of A. platensis. Hence, this study aimed to investigate the interaction and accumulation of Ag NPs on A. platensis, and determine the changes in biomass and nutritional value of A. platensis due to the exposure to Ag NPs. Methods The interaction and accumulation of Ag NPs on A. platensis were examined through Fourier transformed infrared (FTIR) spectroscopy and scanning electron microscope (SEM). The loss in biomass together with the macromolecules, pigments, and phenolic compounds of A. platensis was investigated upon treating with various concentrations of Ag NPs (5, 10, 25, 50 and 100 µg/mL) for 24, 48, 72 and 96 h. Results The results showed that the treatment of A. platensis with Ag NPs caused a dose and time-dependent reduction in biomass, macronutrients, pigments and phenolic compounds. The highest detrimental effects were found at 96 h with the reported values of 65.71 ± 2.79%, 67.21 ± 3.98%, 48.99 ± 4.39% and 59.62 ± 3.96% reduction in biomass, proteins, carbohydrates and lipids, respectively, along with 82.99 ± 7.81%, 67.55 ± 2.63%, 75.03 ± 1.55%, and 63.43 ± 2.89% loss in chlorophyll-a, carotenoids, C-phycocyanin, and total phenolic compounds of A. platensis for 100 µg/mL of Ag NPs. The EDX analysis confirmed the surface accumulation of Ag NPs on Arthrospira cells, while SEM images evidenced the surface alterations and damage of the treated cells. The functional groups such as hydroxyl, amine, methyl, amide I, amide II, carboxyl, carbonyl and phosphate groups from the cell wall of the A. platensis were identified to be possibly involved in the interaction of Ag NPs with A. platensis. Conclusion The study confirmed that the exposure of Ag NPs is detrimental to A. platensis where the interaction and accumulation of Ag NPs on A. platensis caused reduction in biomass, macromolecules, pigments, and total phenolic compounds.
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Affiliation(s)
- Sharolynne Xiao Tong Liang
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Sinouvassane Djearamane
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | | | - Ling Shing Wong
- Faculty of Health and Life Sciences, INTI International University, Nilai, Negeri Sembilan, Malaysia
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4
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Durur DY, Tastan B, Ugur Tufekci K, Olcum M, Uzuner H, Karakülah G, Yener G, Genc S. Alteration of miRNAs in Small Neuron-Derived Extracellular Vesicles of Alzheimer's Disease Patients and the Effect of Extracellular Vesicles on Microglial Immune Responses. J Mol Neurosci 2022; 72:1182-1194. [PMID: 35488079 DOI: 10.1007/s12031-022-02012-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 04/16/2022] [Indexed: 01/02/2023]
Abstract
Alzheimer's disease (AD) is one of the most severe neurodegenerative diseases observed in the elderly population. Although the hallmarks of AD have been identified, the methods for its definitive diagnosis and treatment are still lacking. Extracellular vesicles (EVs) have become a promising source for biomarkers since the identification of their content. EVs are released from multiple cell types and, when released from neurons, they pass from the brain to the blood with their cargo molecules. Hence, neuron-specific EV-resident microRNAs (miRNAs) are promising biomarkers for diagnosis of AD. This study aimed to identify altered miRNA content in small neuron-derived extracellular vesicles (sNDEVs) isolated from AD patients and healthy individuals. Furthermore, we examined the role of sNDEV-resident miRNAs in neuron-glia cellular interaction to understand their role in AD propagation. We identified 10 differentially expressed miRNAs in the sNDEVs of patients via next-generation sequencing and validated the most dysregulated miRNA, let-7e, with qRT-PCR. Let-7e was significantly increased in the sNDEVs of AD patients compared with those of healthy controls in a larger cohort. First, we evaluated the diagnostic utility of let-7e via ROC curve analysis, which revealed an AUC value of 0.9214. We found that IL-6 gene expression was increased in human microglia after treatment with sNDEVs of AD patients with a high amount of let-7e. Our study suggests that sNDEV-resident let-7e is a potential biomarker for AD diagnosis, and that AD patient-derived sNDEVs induce a neuroinflammatory response in microglia.
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Affiliation(s)
- Devrim Yagmur Durur
- Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University Health Campus, Izmir, Turkey
| | - Bora Tastan
- Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University Health Campus, Izmir, Turkey
| | - Kemal Ugur Tufekci
- Vocational School of Health Services, Izmir Democracy University, Izmir, Turkey
| | - Melis Olcum
- Biomedicine and Genome Center, Izmir, Turkey
| | - Hamdiye Uzuner
- Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University Health Campus, Izmir, Turkey
| | - Gökhan Karakülah
- Biomedicine and Genome Center, Izmir, Turkey.,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University Health Campus, Izmir, Turkey
| | - Gorsev Yener
- Department of Neuroscience, Health Science Institute, Dokuz Eylul University, Izmir, Turkey.,Department of Neurology, Faculty of Medicine, Izmir University of Economics, Izmir, Turkey
| | - Sermin Genc
- Biomedicine and Genome Center, Izmir, Turkey. .,Izmir International Biomedicine and Genome Institute, Dokuz Eylul University Health Campus, Izmir, Turkey. .,Department of Neuroscience, Health Science Institute, Dokuz Eylul University, Izmir, Turkey.
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Audrey G, Claire LC, Joel E. Effect of the NFL-TBS.40-63 peptide on canine glioblastoma cells. Int J Pharm 2021; 605:120811. [PMID: 34144141 DOI: 10.1016/j.ijpharm.2021.120811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/17/2021] [Accepted: 06/12/2021] [Indexed: 12/21/2022]
Abstract
Glioblastomas are the most frequent and aggressive cancer of the nervous system. The standard treatment is composed of neurosurgery followed by radiotherapy and chemotherapy, but the median survival remains very low. The NFL-TBS.40-63 peptide, also known as NFL-peptide, is capable to specifically penetrating all glioblastoma cell lines tested so far (rat, mouse and human), where it alters their microtubule network. Consequently, the peptide inhibits selectively the in vitro cell division of glioblastoma cells and their tumor development in vivo. When lipid nanocapsules are functionalized with the NFL-peptide, their uptake is targeted into glioblastoma cells both in vitro and in vivo. Here, we evaluated the impact of the NFL-peptide on J3T cells derived from a canine spontaneous glioblastoma, and its activity when functionalized to nanocapsules. Both flow cytometry and confocal microscopy experiments indicate that the NFL-peptide interacts with these cells and affects their biology, but it cannot enter in cells. By functionalizing lipid nanoparticles with the NFL-peptide, their uptake is also increased, while the peptide stays outside. This investigation reveals similarities and major differences between these canine cells and other glioblastoma cells, which are important aspects to consider when using this type of drug delivery system or performing pre-clinical studies with this animal model.
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Affiliation(s)
- Griveau Audrey
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Lépinoux-Chambaud Claire
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France; GlioCure, F-49000 Angers, France
| | - Eyer Joel
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France.
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Kihira K, Chelakkot VS, Kainuma H, Okumura Y, Tsuboya N, Okamura S, Kurihara K, Iwamoto S, Komada Y, Hori H. Close interaction with bone marrow mesenchymal stromal cells induces the development of cancer stem cell-like immunophenotype in B cell precursor acute lymphoblastic leukemia cells. Int J Hematol 2020; 112:795-806. [PMID: 32862292 DOI: 10.1007/s12185-020-02981-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/05/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022]
Abstract
Minimal residual disease of leukemia may reside in the bone marrow (BM) microenvironment and escape the effects of chemotherapeutic agents. This study investigated interactions between B cell precursor (BCP)-acute lymphoblastic leukemia (ALL) cells and BM mesenchymal stromal cells (BM-MSCs) in vitro. Five BCP-ALL cell lines established from pediatric patients and primary samples from a BCP-ALL patient were examined by flow cytometry and immunocytochemistry for expression of specific cell surface markers and cell adhesion proteins. The cell lines developed chemoresistance to commonly used anti-leukemic agents through adhesion to MSC-TERT cells in long-term culture. The change in chemosensitivity after adhering to BM-MSCs was associated with the expression of CD34, CD133, P-glycoprotein and BCRP/ABCG2, and downregulation of CD38. Similar phenotypic changes were observed in primary samples obtained by marrow aspiration or biopsy from a BCP-ALL patient. BM-MSC-adhering leukemia cells also showed deceleration of cell proliferation and expressed proteins in the Cadherin and Integrin pathways. These results suggest that BCP-ALL cells residing in the BM microenvironment may acquire chemoresistance by altering their phenotype to resemble that of cancer stem cells. Our results indicate that cell adhesion could be potentially targeted to improve the chemosensitivity of residual BCP-ALL cells in the BM microenvironment.
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Affiliation(s)
- Kentaro Kihira
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | | | - Hiroki Kainuma
- Department of Medical Education, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Yosuke Okumura
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Naoki Tsuboya
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Satoshi Okamura
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Medical Education, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Kosuke Kurihara
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Medical Education, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan
| | - Shotaro Iwamoto
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoshihiro Komada
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hiroki Hori
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Japan. .,Department of Medical Education, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu, Mie, 514-8507, Japan.
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de Mello TP, Aor AC, Branquinha MH, Dos Santos ALS. Insights into the interaction of Scedosporium apiospermum, Scedosporium aurantiacum, Scedosporium minutisporum, and Lomentospora prolificans with lung epithelial cells. Braz J Microbiol 2020; 51:427-36. [PMID: 31736016 DOI: 10.1007/s42770-019-00183-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 11/01/2019] [Indexed: 12/18/2022] Open
Abstract
Scedosporium spp. and Lomentospora prolificans are filamentous fungi that emerged as human pathogens; however, their mechanisms of virulence/pathogenesis are still largely unknown. In the present work, we have evaluated the interaction of S. apiospermum, S. minutisporum, S. aurantiacum, and L. prolificans with lung epithelial cells (A549 line). The results showed that conidia were able to interact with A549 cells, displaying association indexes of 73.20, 117.98, 188.01, and 241.63 regarding S. apiospermum, L. prolificans, S. minutisporum, and S. aurantiacum, respectively. Light microscopy images evidenced morphological changes in epithelial cells, including rounding and detachment, especially during the interaction with L. prolificans. Plasma membrane injuries were detected in A549 cells after 1 h of co-culturing with S. aurantiacum and S. minutisporum and after 4 h with S. apiospermum and L. prolificans, as judged by the passive incorporation of propidium iodide. After 24 h of fungi-epithelial cells interaction, only mycelia were observed covering the A549 monolayer. Interestingly, the mycelial trap induced severe damage in the A549 cells, culminating in epithelial cell death. Our results demonstrate some relevant events that occur during the contact between lung epithelial cells and Scedosporium/Lomentospora species, including conidial adhesion and hyphal growth with consequent irreversible injury on A549 cells, adding light to the infection process caused by these opportunistic and multidrug-resistant fungi.
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Adeyemi OS, Otohinoyi DA, Awakan OJ, Adeyanju AA. Cellular apoptosis of HFF cells by inorganic nanoparticles not susceptible to modulation by Toxoplasma gondii infection in vitro. Toxicol In Vitro 2018; 54:280-285. [PMID: 30359720 DOI: 10.1016/j.tiv.2018.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/17/2018] [Accepted: 10/21/2018] [Indexed: 12/20/2022]
Abstract
The interaction of nanoparticles with living cells is becoming one of the urgent areas of collaborative research in materials science and biology. Previously, we showed that nanoparticles have promising anti-Toxoplasma gondii properties. Meanwhile, Toxoplasma gondii has been shown to avert apoptosis in host cells whereas nanoparticles have been implicated for apoptotic tendency. Therefore, in the present study, we assessed the in vitro apoptotic properties of inorganic nanoparticles in the absence or presence of Toxoplasma infection and/or small molecules used as metabolic modulators. Results showed that inorganic nanoparticles dose-dependently caused cellular apoptosis. However, in the presence of infection by Toxoplasma gondii, nanoparticles-induced cellular apoptosis was not mitigated. Likewise, use of several small molecules (anti-metabolites) as metabolic modulators either mildly or nearly failed to abate cellular apoptosis by nanoparticles. Taken together, our findings do not only confirm the apoptotic potential of inorganic nanoparticles but show evidence that cellular apoptosis by inorganic nanoparticles of gold and silver might not be susceptible to modulation by Toxoplasma gondii infection. The findings are new and contribute to deepen our understanding of the cellular interaction of nanoparticles.
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Affiliation(s)
- Oluyomi Stephen Adeyemi
- Medicinal Biochemistry, Nanomedicine & Toxicology Laboratory, Department of Biochemistry, Landmark University, PMB 10017 Omu-Aran, Nigeria.
| | | | - Oluwakemi Josephine Awakan
- Medicinal Biochemistry, Nanomedicine & Toxicology Laboratory, Department of Biochemistry, Landmark University, PMB 10017 Omu-Aran, Nigeria
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Abstract
Background Understanding how cells interact with nanomaterials is important for rational design of nanomaterials for nanomedicine and transforming them for clinical applications. Particularly, the mechanism for one-dimensional (1D) nanomaterials with high aspect ratios still remains unclear. Results In this work, we present amine-functionalized silicon nanowires (SiNW-NH2) entering CHO-β cells via a physical membrane wrapping mechanism. By utilizing optical microscopy, transmission electron microscopy, and confocal fluorescence microscopy, we successfully visualized the key steps of internalization of SiNW-NH2 into cells. Conclusion Our results provide insight into the interaction between 1D nanomaterials and confirm that these materials can be used for understanding membrane mechanics through physical stress exerted on the membrane. Electronic supplementary material The online version of this article (doi:10.1186/s12951-017-0250-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kelly McNear
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Yimin Huang
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - Chen Yang
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA. .,Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA.
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Sangenito LS, d'Avila-Levy CM, Branquinha MH, Santos ALS. Nelfinavir and lopinavir impair Trypanosoma cruzi trypomastigote infection in mammalian host cells and show anti-amastigote activity. Int J Antimicrob Agents 2016; 48:703-711. [PMID: 27838277 DOI: 10.1016/j.ijantimicag.2016.09.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/08/2016] [Accepted: 09/15/2016] [Indexed: 02/08/2023]
Abstract
There is an urgent need to implement new strategies and to search for new chemotherapeutic targets to combat Chagas' disease. In this context, repositioning of clinically approved drugs appears as a viable tool to combat this and several other neglected pathologies. An example is the use of aspartic peptidase inhibitors (PIs) currently applied in human immunodeficiency virus (HIV) treatment against different infectious agents. Therefore, the main objective of this work was to verify the effects of the HIV-PIs nelfinavir and lopinavir against Trypanosoma cruzi using in vitro models of infection. Cytotoxicity assays with LLC-MK2 epithelial cells and RAW macrophages allowed an evaluation of the effects of HIV-PIs on the interaction between trypomastigotes and these cells as well as the survival of intracellular amastigotes. Pre-treatment of trypomastigotes with nelfinavir and lopinavir inhibited the association index with LLC-MK2 cells and RAW macrophages in a dose- and time-dependent manner. In addition, nelfinavir and lopinavir also significantly reduced the number of intracellular amastigotes in both mammalian cell lineages, particularly when administered in daily doses. Both compounds had no effect on nitric oxide production in infected RAW macrophages. These results open the possibility for the use of HIV-PIs as a tangible alternative in the treatment of Chagas' disease. However, the main mechanism of action of nelfinavir and lopinavir has yet to be elucidated, and more studies using in vivo models must be conducted.
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Affiliation(s)
- Leandro S Sangenito
- Departamento de Microbiologia Geral, Laboratório de Investigação de Peptidases, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Claudia M d'Avila-Levy
- Laboratório de Estudos Integrados em Protozoologia, Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil
| | - Marta H Branquinha
- Departamento de Microbiologia Geral, Laboratório de Investigação de Peptidases, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
| | - André L S Santos
- Departamento de Microbiologia Geral, Laboratório de Investigação de Peptidases, Instituto de Microbiologia Paulo de Góes (IMPG), Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; Programa de Pós-Graduação em Bioquímica, Instituto de Química, UFRJ, Rio de Janeiro, Brazil.
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Abstract
Tumor development and tumor progression is not only determined by the corresponding tumor cells but also by the tumor microenvironment. This includes an orchestrated network of interacting cell types (e.g. immune cells, endothelial cells, fibroblasts, and mesenchymal stroma/stem cells (MSC)) via the extracellular matrix and soluble factors such as cytokines, chemokines, growth factors and various metabolites. Cell populations of the tumor microenvironment can interact directly and indirectly with cancer cells by mutually altering properties and functions of the involved partners. Particularly, mesenchymal stroma/stem cells (MSC) play an important role during carcinogenesis exhibiting different types of intercellular communication. Accordingly, this work focusses on diverse mechanisms of interaction between MSC and cancer cells. Moreover, some functional changes and consequences for both cell types are summarized which can eventually result in the establishment of a carcinoma stem cell niche (CSCN) or the generation of new tumor cell populations by MSC-tumor cell fusion.
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Affiliation(s)
- Catharina Melzer
- Biochemistry and Tumor Biology Lab, Department of Obstetrics and Gynecology, Hannover Medical School, Carl-Neuberg-Str. 1, D, 30625, Hannover, Germany
| | - Yuanyuan Yang
- Biochemistry and Tumor Biology Lab, Department of Obstetrics and Gynecology, Hannover Medical School, Carl-Neuberg-Str. 1, D, 30625, Hannover, Germany.,Tongji Hospital Affiliated Tongji University, Shanghai, China
| | - Ralf Hass
- Biochemistry and Tumor Biology Lab, Department of Obstetrics and Gynecology, Hannover Medical School, Carl-Neuberg-Str. 1, D, 30625, Hannover, Germany.
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Brun E, Sicard-Roselli C. Could nanoparticle corona characterization help for biological consequence prediction? Cancer Nanotechnol 2014; 5:7. [PMID: 25309635 PMCID: PMC4181791 DOI: 10.1186/s12645-014-0007-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 09/11/2014] [Indexed: 12/11/2022] Open
Abstract
As soon as they enter a biological medium (cell culture medium for in vitro, blood or plasma for in vivo studies), nanoparticles, in most cases, see their surface covered by biomolecules, especially proteins. What the cells see is thus not the ideal nanoparticle concocted by chemists, meaning the biomolecular corona could have great biological and physiological repercussions, sometimes masking the expected effects of purposely grafted molecules. In this review, we will mainly focus on gold nanoparticles. In the first part, we will discuss the fate of these particles once in a biological medium, especially in terms of size, and the protein composition of the corona. We will highlight the parameters influencing the quantity and the identity of the adsorbed proteins. In a second part, we will resume the main findings about the influence of a biomolecular corona on cellular uptake, toxicity, biodistribution and targeting ability. To be noticed is the need for standardized experiments and very precise reports of the protocols and methods used in the experimental sections to extract informative data. Given the biological consequences of this corona, we suggest that it should be taken into account in theoretical studies dealing with nanomaterials to better represent the biological environment.
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Affiliation(s)
- Emilie Brun
- Laboratoire de Chimie Physique, CNRS UMR8000, Université Paris-Sud, 91405 Orsay, Cedex France
| | - Cécile Sicard-Roselli
- Laboratoire de Chimie Physique, CNRS UMR8000, Université Paris-Sud, 91405 Orsay, Cedex France
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Abstract
The methods for cartilage repair have been studied so far, yet many of them seem to have limitations due to the low regenerative capacity of articular cartilage. Mesenchymal stem cell (MSC) has been suggested as an alternative solution to remedy this challenging problem. MSCs, which have extensive differentiation capacity, can be induced to differentiate into chondrocytes under specific conditions. Particularly, this review focused on the effects of growth factors, cell-to-cell interactions and biomaterials in chondrogenesis of MSCs. Appropriate stimulations through these factors are crucial in differentiation and proliferation of MSCs. However, use of MSCs for cartilage repair has some drawbacks and risks, such as expression of hypertrophy-related genes in MSCs-derived chondrocytes and consequent calcification or cell death. Nevertheless, the clinical application of MSCs is expected in the future with advanced technology.
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Affiliation(s)
- Da-Ae Yu
- School of Chemical and Biological Engineering, Seoul National University, Seoul, Korea
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Prasad A, Rossi C, Lamponi S, Pospíšil P, Foletti A. New perspective in cell communication: potential role of ultra-weak photon emission. J Photochem Photobiol B 2014; 139:47-53. [PMID: 24703082 DOI: 10.1016/j.jphotobiol.2014.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 03/03/2014] [Accepted: 03/06/2014] [Indexed: 01/11/2023]
Abstract
Evolution has permitted a wide range of medium for communication between two living organism varying from information transfer via chemical, direct contact or through specialized receptors. Past decades have evidenced the existence of cell-to-cell communication in living system. Several studies have demonstrated the existence of one cell system influencing the other cells by means of electromagnetic radiations investigated by the stimulation of cell division, neutrophils activation, respiratory burst induction and alteration in the developmental stages, etc. The responses were evaluated by methods such as chemiluminescence, ultra-weak photon emission, generation of free oxygen radicals, and level of thiobarbituric acid-reactive substances (TBARS). The cellular communication is hypothesized to occur via several physical phenomenon's, however the current review attempts to provide thorough information and a detailed overview of experimental results on the cell-to-cell communication observed in different living system via ultra-weak photon emission to bring a better understanding and new perspective to the phenomenon.
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Affiliation(s)
- Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic
| | - Claudio Rossi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro, 2-53100 Siena, Italy; Centre for Colloid and Surface Science (CSGI), University of Florence, Via della, Lastruccia 3, Sesto Fiorentino, FI, Italy.
| | - Stefania Lamponi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro, 2-53100 Siena, Italy
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 11, 783 71 Olomouc, Czech Republic
| | - Alberto Foletti
- Laboratory of Applied Mathematics and Physics, Department of Innovative Technologies - DTI, University of Applied Sciences of Southern Switzerland-SUPSI, Manno, Switzerland
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