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Vaiasicca S, Melone G, James DW, Quintela M, Xiao J, Yao S, Finnell RH, Conlan RS, Francis LW, Corradetti B. Transcriptomic analysis reveals the anti-cancer effect of gestational mesenchymal stem cell secretome. Stem Cells Transl Med 2024:szae024. [PMID: 38584493 DOI: 10.1093/stcltm/szae024] [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: 09/12/2023] [Accepted: 03/12/2024] [Indexed: 04/09/2024] Open
Abstract
The environment created during embryogenesis contributes to reducing aberrations that drive structural malformations and tumorigenesis. In this study, we investigate the anti-cancer effect of mesenchymal stem cells (MSCs) derived from 2 different gestational tissues, the amniotic fluid (AF) and the chorionic villi (CV), with emphasis on their secretome. Transcriptomic analysis was performed on patient-derived AF- and CV-MSCs collected during prenatal diagnosis and identified both mRNAs and lncRNAs, involved in tissue homeostasis and inhibiting biological processes associated with the etiology of aggressive cancers while regulating immune pathways shown to be important in chronic disorders. Secretome enrichment analysis also identified soluble moieties involved in target cell regulation, tissue homeostasis, and cancer cell inhibition through the highlighted Wnt, TNF, and TGF-β signaling pathways. Transcriptomic data were experimentally confirmed through in vitro assays, by evaluating the anti-cancer effect of the media conditioned by AF- and CV-MSCs and the exosomes derived from them on ovarian cancer cells, revealing inhibitory effects in 2D (by reducing cell viability and inducing apoptosis) and in 3D conditions (by negatively interfering with spheroid formation). These data provide molecular insights into the potential role of gestational tissues-derived MSCs as source of anti-cancer factors, paving the way for the development of therapeutics to create a pro-regenerative environment for tissue restoration following injury, disease, or against degenerative disorders.
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Affiliation(s)
- Salvatore Vaiasicca
- Advanced Technology Center for Aging Research, IRCCS INRCA, 60124, Ancona, Italy
- Department of Life and Environmental Sciences, Polytechnic University of Marche, 60131, Ancona, Italy
| | - Gianmarco Melone
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
| | - David W James
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
| | - Marcos Quintela
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
| | - Jing Xiao
- Center for Precision Environmental Health, Baylor College of Medicine, 77030, Houston, TX, United States
| | - Seydou Yao
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
| | - Richard H Finnell
- Center for Precision Environmental Health, Baylor College of Medicine, 77030, Houston, TX, United States
- Departments of Molecular and Human Genetics Molecular & Cellular Biology and Medicine, Baylor College of Medicine, 77030, Houston, TX, United States
| | - Robert S Conlan
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
- Department of Nanomedicine, Houston Methodist Research Institute, 77030, Houston, TX, United States
| | - Lewis W Francis
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
| | - Bruna Corradetti
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, SA2 8QA, Swansea, Wales, United Kingdom
- Center for Precision Environmental Health, Baylor College of Medicine, 77030, Houston, TX, United States
- Departments of Medicine, Section Oncology, Hematology, Baylor College of Medicine, 77030, Houston, TX, United States
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Casoli T, Bonfigli AR, Rosa MD, Giorgetti B, Balietti M, Giacconi R, Cardelli M, Piacenza F, Marchegiani F, Marcheselli F, Recchioni R, Galeazzi R, Vaiasicca S, Lamedica AM, Fumagalli A, Ferrara L, Lattanzio F. Association of Inflammatory Mediators with Mitochondrial DNA Variants in Geriatric COVID-19 Patients. Aging Dis 2024:AD.2023.1123. [PMID: 38377022 DOI: 10.14336/ad.2023.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 11/23/2023] [Indexed: 02/22/2024] Open
Abstract
COVID-19 remains a serious concern for elderly individuals with underlying comorbidities. SARS-CoV-2 can target and damage mitochondria, potentially leading to mutations in mitochondrial DNA (mtDNA). This study aimed to evaluate single nucleotide substitutions in mtDNA and analyze their correlation with inflammatory biomarkers in elderly COVID-19 patients. A total of 30 COVID-19 patients and 33 older adult controls without COVID-19 (aged over 65 years) were enrolled. mtDNA was extracted from buffy coat samples and sequenced using a chip-based resequencing system (MitoChip v2.0) which detects both homoplasmic and heteroplasmic mtDNA variants (40-60% heteroplasmy), and allows the assessment of low-level heteroplasmy (<10% heteroplasmy). Serum concentrations of IL-6, IFN-α, TNF-α and IL-10 were determined in patients by a high-sensitivity immunoassay. We found a higher burden of total heteroplasmic variants in COVID-19 patients compared to controls with a selective increment in ND1 and COIII genes. Low-level heteroplasmy was significantly elevated in COVID-19 patients, especially in genes of the respiratory complex I. Both heteroplasmic variant burden and low-level heteroplasmy were associated with increased levels of IL-6, TNF-α, and IFN-α. These findings suggest that SARS-CoV-2 may induce mtDNA mutations that are related to the degree of inflammation.
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Affiliation(s)
- Tiziana Casoli
- Center for Neurobiology of Aging, IRCCS INRCA, Ancona, Italy
| | | | - Mirko Di Rosa
- Centre for Biostatistics and Applied Geriatric Clinical Epidemiology, IRCCS INRCA, Ancona, Italy
| | | | - Marta Balietti
- Center for Neurobiology of Aging, IRCCS INRCA, Ancona, Italy
| | - Robertina Giacconi
- Advanced Technology Center for Aging Research, IRCCS INRCA, Ancona, Italy
| | - Maurizio Cardelli
- Advanced Technology Center for Aging Research, IRCCS INRCA, Ancona, Italy
| | - Francesco Piacenza
- Advanced Technology Center for Aging Research, IRCCS INRCA, Ancona, Italy
| | | | | | - Rina Recchioni
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
| | - Roberta Galeazzi
- Clinic of Laboratory and Precision Medicine, IRCCS INRCA, Ancona, Italy
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Vaiasicca S, Melone G, James DW, Quintela M, Preziuso A, Finnell RH, Conlan RS, Francis LW, Corradetti B. Transcriptomic analysis of stem cells from chorionic villi uncovers the impact of chromosomes 2, 6 and 22 in the clinical manifestations of Down syndrome. Stem Cell Res Ther 2023; 14:265. [PMID: 37740230 PMCID: PMC10517537 DOI: 10.1186/s13287-023-03503-4] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/18/2023] [Indexed: 09/24/2023] Open
Abstract
BACKGROUND Down syndrome (DS) clinical multisystem condition is generally considered the result of a genetic imbalance generated by the extra copy of chromosome 21. Recent discoveries, however, demonstrate that the molecular mechanisms activated in DS compared to euploid individuals are more complex than previously thought. Here, we utilize mesenchymal stem cells from chorionic villi (CV) to uncover the role of comprehensive functional genomics-based understanding of DS complexity. METHODS Next-generation sequencing coupled with bioinformatic analysis was performed on CV obtained from women carrying fetuses with DS (DS-CV) to reveal specific genome-wide transcriptional changes compared to their euploid counterparts. Functional assays were carried out to confirm the biological processes identified as enriched in DS-CV compared to CV (i.e., cell cycle, proliferation features, immunosuppression and ROS production). RESULTS Genes located on chromosomes other than the canonical 21 (Ch. 2, 6 and 22) are responsible for the impairment of life-essential pathways, including cell cycle regulation, innate immune response and reaction to external stimuli were found to be differentially expressed in DS-CV. Experimental validation confirmed the key role of the biological pathways regulated by those genes in the etiology of such a multisystem condition. CONCLUSIONS NGS dataset generated in this study highlights the compromised functionality in the proliferative rate and in the innate response of DS-associated clinical conditions and identifies DS-CV as suitable tools for the development of specifically tailored, personalized intervention modalities.
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Affiliation(s)
- Salvatore Vaiasicca
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
- Scientific Direction, IRCCS INRCA, Ancona, Italy
| | - Gianmarco Melone
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, Swansea, Wales, UK
| | - David W James
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, Swansea, Wales, UK
| | - Marcos Quintela
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, Swansea, Wales, UK
| | - Alessandra Preziuso
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Richard H Finnell
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA
| | - Robert Steven Conlan
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, Swansea, Wales, UK
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA
| | - Lewis W Francis
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, Swansea, Wales, UK
| | - Bruna Corradetti
- Centre for NanoHealth, Swansea University Medical School, Singleton Park, Swansea, Wales, UK.
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA.
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, USA.
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Mangiaterra G, Cedraro N, Vaiasicca S, Citterio B, Frangipani E, Biavasco F, Vignaroli C. Involvement of Acquired Tobramycin Resistance in the Shift to the Viable but Non-Culturable State in Pseudomonas aeruginosa. Int J Mol Sci 2023; 24:11618. [PMID: 37511375 PMCID: PMC10380639 DOI: 10.3390/ijms241411618] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Persistent and viable but non-culturable (VBNC) Pseudomonas aeruginosa cells are mainly responsible for the recurrence and non-responsiveness to antibiotics of cystic fibrosis (CF) lung infections. The sub-inhibitory antibiotic concentrations found in the CF lung in between successive therapeutic cycles can trigger the entry into the VBNC state, albeit with a strain-specific pattern. Here, we analyzed the VBNC cell induction in the biofilms of two CF P. aeruginosa isolates, exposed to starvation with/without antibiotics, and investigated the putative genetic determinants involved. Total viable bacterial cells were quantified by the validated ecfX-targeting qPCR protocol and the VBNC cells were estimated as the difference between qPCR and cultural counts. The isolates were both subjected to whole genome sequencing, with attention focused on their carriage of aminoglycoside resistance genes and on identifying mutated toxin-antitoxin and quorum sensing systems. The obtained results suggest the variable contribution of different antibiotic resistance mechanisms to VBNC cell abundance, identifying a major contribution from tobramycin efflux, mediated by MexXY efflux pump overexpression. The genome analysis evidenced putative mutation hotspots, which deserve further investigation. Therefore, drug efflux could represent a crucial mechanism through which the VBNC state is entered and a potential target for anti-persistence strategies.
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Affiliation(s)
- Gianmarco Mangiaterra
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Via S. Chiara 27, 61029 Urbino, Italy
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Nicholas Cedraro
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Salvatore Vaiasicca
- Department of Molecular and Clinical Sciences, Polytechnic University of Marche, Via Tronto 10/a, 60020 Ancona, Italy
| | - Barbara Citterio
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Via S. Chiara 27, 61029 Urbino, Italy
| | - Emanuela Frangipani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Via S. Chiara 27, 61029 Urbino, Italy
| | - Francesca Biavasco
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Carla Vignaroli
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
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5
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Cedraro N, Cannalire R, Astolfi A, Mangiaterra G, Felicetti T, Vaiasicca S, Cernicchi G, Massari S, Manfroni G, Tabarrini O, Cecchetti V, Barreca ML, Biavasco F, Sabatini S. From Quinoline to Quinazoline-Based S. aureus NorA Efflux Pump Inhibitors by Coupling a Focused Scaffold Hopping Approach and a Pharmacophore Search. ChemMedChem 2021; 16:3044-3059. [PMID: 34032014 PMCID: PMC8518402 DOI: 10.1002/cmdc.202100282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/23/2021] [Indexed: 11/29/2022]
Abstract
Antibiotic resistance breakers, such as efflux pump inhibitors (EPIs), represent a powerful alternative to the development of new antimicrobials. Recently, by using previously described EPIs, we developed pharmacophore models able to identify inhibitors of NorA, the most studied efflux pump of Staphylococcus aureus. Herein we report the pharmacophore-based virtual screening of a library of new potential NorA EPIs generated by an in-silico scaffold hopping approach of the quinoline core. After chemical synthesis and biological evaluation of the best virtual hits, we found the quinazoline core as the best performing scaffold. Accordingly, we designed and synthesized a series of functionalized 2-arylquinazolines, which were further evaluated as NorA EPIs. Four of them exhibited a strong synergism with ciprofloxacin and a good inhibition of ethidium bromide efflux on resistant S. aureus strains coupled with low cytotoxicity against human cell lines, thus highlighting a promising safety profile.
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Affiliation(s)
- Nicholas Cedraro
- Department of Life and Environmental SciencesUniversità Politecnica delle Marchevia Brecce Bianche60131AnconaItaly
| | - Rolando Cannalire
- Current address: Department of PharmacyUniversity of Napoli “Federico II”via D. Montesano 4980131NapoliItaly
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Andrea Astolfi
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Gianmarco Mangiaterra
- Department of Life and Environmental SciencesUniversità Politecnica delle Marchevia Brecce Bianche60131AnconaItaly
| | - Tommaso Felicetti
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Salvatore Vaiasicca
- Department of Life and Environmental SciencesUniversità Politecnica delle Marchevia Brecce Bianche60131AnconaItaly
| | - Giada Cernicchi
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Serena Massari
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Giuseppe Manfroni
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Oriana Tabarrini
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Violetta Cecchetti
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Maria Letizia Barreca
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
| | - Francesca Biavasco
- Department of Life and Environmental SciencesUniversità Politecnica delle Marchevia Brecce Bianche60131AnconaItaly
| | - Stefano Sabatini
- Department of Pharmaceutical SciencesUniversità degli Studi di Perugiavia del Liceo 106123PerugiaItaly
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Vaiasicca S, Corradetti B. Stem cells from the amniotic fluid: a promising tool to face the cytokine storm associated to SARS‐CoV‐2 infections. FASEB J 2021. [PMCID: PMC8239691 DOI: 10.1096/fasebj.2021.35.s1.03786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Bruna Corradetti
- NanomedicineHouston Methodist Research InstituteHoustonTX
- Center of NanoHealthHouston Methodist Research InstituteHoustonTX
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7
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Mangiaterra G, Carotti E, Vaiasicca S, Cedraro N, Citterio B, La Teana A, Biavasco F. Contribution of Drugs Interfering with Protein and Cell Wall Synthesis to the Persistence of Pseudomonas aeruginosa Biofilms: An In Vitro Model. Int J Mol Sci 2021; 22:ijms22041628. [PMID: 33562782 PMCID: PMC7914939 DOI: 10.3390/ijms22041628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 12/28/2022] Open
Abstract
The occurrence of Pseudomonas aeruginosa (PA) persisters, including viable but non-culturable (VBNC) forms, subpopulations of tolerant cells that can survive high antibiotic doses, is the main reason for PA lung infections failed eradication and recurrence in Cystic Fibrosis (CF) patients, subjected to life-long, cyclic antibiotic treatments. In this paper, we investigated the role of subinhibitory concentrations of different anti-pseudomonas antibiotics in the maintenance of persistent (including VBNC) PA cells in in vitro biofilms. Persisters were firstly selected by exposure to high doses of antibiotics and their abundance over time evaluated, using a combination of cultural, qPCR and flow cytometry assays. Two engineered GFP-producing PA strains were used. The obtained results demonstrated a major involvement of tobramycin and bacterial cell wall-targeting antibiotics in the resilience to starvation of VBNC forms, while the presence of ciprofloxacin and ceftazidime/avibactam lead to their complete loss. Moreover, a positive correlation between tobramycin exposure, biofilm production and c-di-GMP levels was observed. The presented data could allow a deeper understanding of bacterial population dynamics during the treatment of recurrent PA infections and provide a reliable evaluation of the real efficacy of the antibiotic treatments against the bacterial population within the CF lung.
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Affiliation(s)
- Gianmarco Mangiaterra
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (E.C.); (S.V.); (N.C.); (A.L.T.); (F.B.)
- Correspondence: ; Tel.: +39-071-220-4622; Fax: +39-071-220-4316
| | - Elisa Carotti
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (E.C.); (S.V.); (N.C.); (A.L.T.); (F.B.)
| | - Salvatore Vaiasicca
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (E.C.); (S.V.); (N.C.); (A.L.T.); (F.B.)
| | - Nicholas Cedraro
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (E.C.); (S.V.); (N.C.); (A.L.T.); (F.B.)
| | - Barbara Citterio
- Department of Biomolecular Science, Biotechnology Section, University of Urbino “Carlo Bo”, via Arco d’Augusto 2, 61032 Fano, Italy;
| | - Anna La Teana
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (E.C.); (S.V.); (N.C.); (A.L.T.); (F.B.)
| | - Francesca Biavasco
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (E.C.); (S.V.); (N.C.); (A.L.T.); (F.B.)
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Cannalire R, Mangiaterra G, Felicetti T, Astolfi A, Cedraro N, Massari S, Manfroni G, Tabarrini O, Vaiasicca S, Barreca ML, Cecchetti V, Biavasco F, Sabatini S. Structural Modifications of the Quinolin-4-yloxy Core to Obtain New Staphylococcus aureus NorA Inhibitors. Int J Mol Sci 2020; 21:ijms21197037. [PMID: 32987835 PMCID: PMC7582826 DOI: 10.3390/ijms21197037] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 11/30/2022] Open
Abstract
Tackling antimicrobial resistance (AMR) represents a social responsibility aimed at renewing the antimicrobial armamentarium and identifying novel therapeutical approaches. Among the possible strategies, efflux pumps inhibition offers the advantage to contrast the resistance against all drugs which can be extruded. Efflux pump inhibitors (EPIs) are molecules devoid of any antimicrobial activity, but synergizing with pumps-substrate antibiotics. Herein, we performed an in silico scaffold hopping approach starting from quinolin-4-yloxy-based Staphylococcus aureus NorA EPIs by using previously built pharmacophore models for NorA inhibition activity. Four scaffolds were identified, synthesized, and modified with appropriate substituents to obtain new compounds, that were evaluated for their ability to inhibit NorA and synergize with the fluoroquinolone ciprofloxacin against resistant S. aureus strains. The two quinoline-4-carboxamide derivatives 3a and 3b showed the best results being synergic (4-fold MIC reduction) with ciprofloxacin at concentrations as low as 3.13 and 1.56 µg/mL, respectively, which were nontoxic for human THP-1 and A549 cells. The NorA inhibition was confirmed by SA-1199B ethidium bromide efflux and checkerboard assays against the isogenic pair SA-K2378 (norA++)/SA-K1902 (norA-). These in vitro results indicate the two compounds as valuable structures for designing novel S. aureus NorA inhibitors to be used in association with fluoroquinolones.
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Affiliation(s)
- Rolando Cannalire
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
- Department of Pharmacy, University of Napoli “Federico II”, via D. Montesano 49, 80131 Napoli, Italy
| | - Gianmarco Mangiaterra
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (G.M.); (N.C.); (S.V.)
| | - Tommaso Felicetti
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
- Correspondence: (T.F.); (F.B.)
| | - Andrea Astolfi
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
| | - Nicholas Cedraro
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (G.M.); (N.C.); (S.V.)
| | - Serena Massari
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
| | - Giuseppe Manfroni
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
| | - Oriana Tabarrini
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
| | - Salvatore Vaiasicca
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (G.M.); (N.C.); (S.V.)
| | - Maria Letizia Barreca
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
| | - Violetta Cecchetti
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
| | - Francesca Biavasco
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, via Brecce Bianche, 60131 Ancona, Italy; (G.M.); (N.C.); (S.V.)
- Correspondence: (T.F.); (F.B.)
| | - Stefano Sabatini
- Department of Pharmaceutical Sciences, Università degli Studi di Perugia, via del Liceo 1, 06123 Perugia, Italy; (R.C.); (A.A.); (S.M.); (G.M.); (O.T.); (M.L.B.); (V.C.); (S.S.)
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9
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Mangiaterra G, Cedraro N, Vaiasicca S, Citterio B, Galeazzi R, Laudadio E, Mobbili G, Minnelli C, Bizzaro D, Biavasco F. Role of Tobramycin in the Induction and Maintenance of Viable but Non-Culturable Pseudomonas aeruginosa in an In Vitro Biofilm Model. Antibiotics (Basel) 2020; 9:antibiotics9070399. [PMID: 32664334 PMCID: PMC7400124 DOI: 10.3390/antibiotics9070399] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 05/05/2020] [Revised: 06/12/2020] [Accepted: 07/08/2020] [Indexed: 01/25/2023] Open
Abstract
The recurrence of Pseudomonas aeruginosa (PA) biofilm infections is a major issue in cystic fibrosis (CF) patients. A pivotal role is played by the presence of antibiotic-unresponsive persisters and/or viable but non-culturable (VBNC) forms, whose development might be favored by subinhibitory antibiotic concentrations. The involvement of tobramycin and ciprofloxacin, widely used to treat CF PA lung infections, in the abundance of VBNC cells was investigated in PA biofilms models. In vitro biofilms of the laboratory strain PAO1-N and the clinical strain C24 were developed and starved by subculture for 170 days in a non-nutrient (NN) broth, unsupplemented or supplemented with one-quarter minimal inhibitory concentration (MIC) of tobramycin or ciprofloxacin. VBNC cells abundance, estimated as the difference between total live (detected by qPCR and flow cytometry) and colony forming unit (CFU) counts, showed a strain- and drug-specific pattern. A greater and earlier abundance of VBNC PAO1-N cells was detected in all conditions. Exposure of the C24 strain to NN and NN + ciprofloxacin induced only a transient VBNC subpopulation, which was more abundant and stable until the end of the experiment in tobramycin-exposed biofilms. The same response to tobramycin was observed in the PAO1-N strain. These findings suggest that low tobramycin concentrations might contribute to PA infection recurrence by favoring the development of VBNC forms.
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Affiliation(s)
- Gianmarco Mangiaterra
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
- Correspondence: ; Tel.: +39-071-220-4622; Fax: +39-071-220-4316
| | - Nicholas Cedraro
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
| | - Salvatore Vaiasicca
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
| | - Barbara Citterio
- Department of Biomolecular Science, Biotechnology Section, University of Urbino “Carlo Bo”, via Arco d’Augusto 2, 61032 Fano, Italy;
| | - Roberta Galeazzi
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
| | - Emiliano Laudadio
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy;
| | - Giovanna Mobbili
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
| | - Cristina Minnelli
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
| | - Davide Bizzaro
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
| | - Francesca Biavasco
- Department of Life and Environmental Sciences, Polytechnic University of Marche, via Brecce Bianche, 60131 Ancona, Italy; (N.C.); (S.V.); (R.G.); (G.M.); (C.M.); (D.B.); (F.B.)
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Corradetti B, Vaiasicca S, Mantovani M, Virgili E, Bonucci M, Hammarberg Ferri I. Bioactive Immunomodulatory Compounds: A Novel Combinatorial Strategy for Integrated Medicine in Oncology? BAIC Exposure in Cancer Cells. Integr Cancer Ther 2020; 18:1534735419866908. [PMID: 31416372 PMCID: PMC6699000 DOI: 10.1177/1534735419866908] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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] [Indexed: 12/18/2022] Open
Abstract
The Standardized Cultured Extract of Lentinula edodes Mycelia (also known as
Active Hexose Correlated Compound, AHCC) and Wasabia japonica
(Wasabi) are natural nutritional supplements known for their immunomodulatory
and anticancer potential. The aim of this study was to evaluate the
combinatorial effect of the bioactive immunomodulatory compound (BAIC), obtained
by combining Wasabi and AHCC, on human breast (MCF-7) and pancreatic (Panc02)
adenocarcinoma cell lines. Data obtained revealed that BAIC determines a
striking decline in cancer cell growth at minimal concentrations compared with
the use of Wasabi and AHCC as single agents. A significant increase in the
G0/G1 subpopulation together with a marked
augmentation in the percentage of apoptotic cells was demonstrated by flow
cytometry, together with a significant upregulation in the expression of genes
associated to the apoptotic cascade in both cell lines. The inhibitory role BAIC
plays in mammospheres formation from MCF-7-derived cancer stem cells was shown
with a marked reduction in size and number. Interestingly, when BAIC was exposed
to monocytic cells, no cytotoxic effects were observed. A
monocytes-to-macrophages differentiation was rather observed with the
concomitant acquisition of an anti-inflammatory phenotype. Taken together, our
findings suggest that BAIC could be used as a potential integration of standard
chemotherapy treatments because of the improved inhibitory activity on cancer
cell proliferation and reduced potential adverse effects.
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Affiliation(s)
- Bruna Corradetti
- 1 Università Politecnica delle Marche, Ancona, Italy.,2 Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX, USA.,3 Center for Nanohealth, Swansea University Medical School, Swansea, UK
| | | | - Mauro Mantovani
- 4 Associazione Ricerche Terapie Innovative BioIntegrate, Bologna, Italy
| | - Edy Virgili
- 5 Associazione Ricerca Terapie Oncologiche Integrate, Rome, Italy
| | - Massimo Bonucci
- 5 Associazione Ricerca Terapie Oncologiche Integrate, Rome, Italy.,6 "Villa Benedetta" Hospital, Rome, Italy
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