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Mihajlović E, Biancalana L, Jelača S, Chiaverini L, Dojčinović B, Dunđerović D, Zacchini S, Mijatović S, Maksimović-Ivanić D, Marchetti F. FETPY: a Diiron(I) Thio-Carbyne Complex with Prominent Anticancer Activity In Vitro and In Vivo. J Med Chem 2024; 67:7553-7568. [PMID: 38639401 DOI: 10.1021/acs.jmedchem.4c00377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
FETPY, an organo-diiron(I) complex, showed strong cytotoxicity across a panel of human and mouse cancer cell lines, combined with an outstanding selectivity compared to nonmalignant cells. Enhanced iron uptake in aggressive, low-differentiated cell lines, caused membrane lipid peroxidation, which resulted in ferroptosis in human ovarian cancer cells. FETPY induced significant morphological changes in murine B16-F1 and B16-F10 melanoma cells, leading to senescence and/or trans-differentiation into Schwann-like cells, thus significantly reducing their tumorigenic potential. Additionally, FETPY substantially suppressed tumor growth in low- and high-grade syngeneic melanoma models when administered in a therapeutic regimen. FETPY is featured by satisfactory water solubility (millimolar range), an amphiphilic character (Log Pow = -0.17), and excellent stability in a biological medium (DMEM). These important requisites for drug development are rarely met in iron complexes investigated so far as possible anticancer agents. Overall, FETPY holds promise as a safe and potent targeted antitumor agent.
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Affiliation(s)
- Ekatarina Mihajlović
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11108, Serbia
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi 13, Pisa I-56124, Italy
| | - Sanja Jelača
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11108, Serbia
| | - Lorenzo Chiaverini
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi 13, Pisa I-56124, Italy
| | - Biljana Dojčinović
- Institute of Chemistry, Technology and Metallurgy University of Belgrade, Njegoševa 12, Belgrade 11000, Serbia
| | - Duško Dunđerović
- Institute of Pathology, School of Medicine University of Belgrade, dr Subotića 1, Belgrade 11000, Serbia
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Via P. Gobetti 85, Bologna I-40129, Italy
| | - Sanja Mijatović
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11108, Serbia
| | - Danijela Maksimović-Ivanić
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade 11108, Serbia
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi 13, Pisa I-56124, Italy
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Pagliaricci N, Pettinari R, Marchetti F, Tombesi A, Pagliaricci S, Cuccioloni M, Galindo A, Fadaei-Tirani F, Hadiji M, Dyson PJ. Ru(II)-Arene Complexes of Curcumin and Bisdesmethoxycurcumin Metabolites. Inorg Chem 2024; 63:7955-7965. [PMID: 38634659 DOI: 10.1021/acs.inorgchem.4c00970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Curcuminoids and their complexes continue to attract attention in medicinal chemistry, but little attention has been given to their metabolic derivatives. Here, the first examples of (arene)Ru(II) complexes with curcuminoid metabolites, tetrahydrocurcumin (THcurcH), and tetrahydrobisdesmethoxycurcumin (THbdcurcH) were prepared and characterized. The neutral complexes [Ru(arene)(THcurc)Cl] and [Ru(arene)(THbdcurc)Cl] (arene = cymene, benzene, or hexamethylbenzene) were characterized by NMR spectroscopy and ESI mass spectrometry, and the crystal structures of the three complexes were determined by X-ray diffraction analysis. Compared to curcuminoids, these metabolites lose their conjugated double bond system responsible for their planarity, showing unique closed conformation structures. Both closed and open conformations have been analyzed and rationalized by using density functional theory (DFT). The cytotoxicity of the complexes was evaluated in vitro against human ovarian carcinoma cells (A2780 and A2780cisR), human breast adenocarcinoma cells (MCF-7 and MCF-7CR), as well as against non-tumorigenic human embryonic kidney cells (HEK293) and human breast (MCF-10A) cells and compared to the free ligands, cisplatin, and RAPTA-C. There is a correlation between cellular uptake and the cytotoxicity of the compounds, suggesting that cellular uptake and binding to nuclear DNA may be the major pathway for cytotoxicity. However, the levels of complex binding to DNA do not strictly correlate with the cytotoxic potency, indicating that other mechanisms are also involved. In addition, treatment of MCF-7 cells with [Ru(cym)(THcurc)Cl] showed a significant decrease in p62 protein levels, which is generally assumed as a noncisplatin-like mechanism of action involving autophagy. Hence, a cisplatin- and a noncisplatin-like concerted mechanism of action, involving both apoptosis and autophagy, is possible.
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Affiliation(s)
- Noemi Pagliaricci
- School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Riccardo Pettinari
- School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Fabio Marchetti
- School of Science and Technology, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Alessia Tombesi
- School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Sara Pagliaricci
- School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Massimiliano Cuccioloni
- School of Biosciences and Veterinary Medicine, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Agustín Galindo
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Farzaneh Fadaei-Tirani
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Mouna Hadiji
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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Bazi M, Bracciotti E, Fioravanti L, Marchetti F, Rancan M, Armelao L, Samaritani S, Labella L. Mononuclear Rare-Earth Metalloligands Exploiting a Divergent Ligand. Inorg Chem 2024; 63:7678-7691. [PMID: 38623915 DOI: 10.1021/acs.inorgchem.3c04532] [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] [Indexed: 04/17/2024]
Abstract
Rare-earth tris-diketonato [RE(dike)3pyterpy] metalloligands can be prepared reacting at room temperature [RE(dike)3dme] (dme = 1,2-dimethoxyethane; dike = tta with Htta = 2-thenoyltrifluoroacetone and RE = La, 1; Y, 2; Eu, 3; Dy, 4; or dike = hfac with Hhfac hexafluoroacetylacetone, and RE = Eu, 5; Tb, 6; Yb 7) with 4'-(4‴-pyridil)-2,2':6',2″-terpyridine (pyterpy). The molecular structures of 1, 5, 6, and 7 have been studied through single-crystal X-ray diffraction showing mononuclear neutral complexes with the rare-earth ion in coordination number nine and with a muffin-like coordination geometry. [RE(tta)3pyterpy] promptly reacts with [M(tta)2dme] with formation of [Mpyterpy2][RE(tta)4]2 (M = Zn, RE = Y, 8; M = Co, RE = Dy, 9). Consistently, [Zn(hfac)2dme] reacts at room temperature with 2 equiv of pyterpy yielding [Znpyterpy2][hfac]2 10 that easily can be transformed by reaction with 2 equiv of [Eu(hfac)3] in [Znpyterpy2][Eu(hfac)4]2 11 that has been structurally characterized. Finally, 1, 2, 3, 5, and 7 metalloligands react at room temperature in few minutes with [PtCl(μ-Cl)PPh3]2 yielding the heterometallic molecular complexes [RE(dike)3pyterpyPtCl2PPh3] (dike = tta, RE = La, 12; Y, 13; Eu; 14; dike = hfac, RE = Eu, 15; Yb, 16).
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Affiliation(s)
- Marco Bazi
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Edoardo Bracciotti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Lorenzo Fioravanti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Marzio Rancan
- CNR ICMATE and INSTM, c/o Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche and CIRCC, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
- CNR DSCTM, Piazzale A. Moro 7, 00185 Roma, Italy
| | - Simona Samaritani
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy
| | - Luca Labella
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy
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Brugnera A, Remondi C, La Tona A, Nembrini G, Lo Coco G, Compare A, Cardinali A, Scollato A, Marchetti F, Bonetti M, Pigozzi MG. Quality of Life and Its Psychosocial Predictors among Patients with Disorders of Gut-Brain Interaction: A Comparison with Age- and Sex-Matched Controls. Healthcare (Basel) 2024; 12:757. [PMID: 38610179 PMCID: PMC11011672 DOI: 10.3390/healthcare12070757] [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: 12/29/2023] [Revised: 02/07/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
The disorders of gut-brain interaction (DGBIs) are a heterogeneous group of chronic conditions that greatly reduce patients' quality of life (QoL). To date, biopsychosocial factors (such as gastrointestinal symptoms, alexithymia, and interpersonal problems) are believed to contribute to the development and maintenance of DGBIs, but their role in affecting patients' QoL is still under investigation. Out of 141 patients seeking treatment for their gastrointestinal symptoms, 71 were diagnosed with a DGBI (47 females, 66.2%; Mage: 41.49 ± 17.23 years) and were age- and sex-matched to 71 healthy controls (47 females, 66.2%; Mage: 40.45 ± 16.38 years) without any current gastrointestinal symptom or diagnosis. Participants completed a sociodemographic and clinical questionnaire and a survey investigating several psychosocial risk factors. We found greater symptom severity and difficulties in identifying feelings among patients compared to controls. Further, multiple linear regression analyses evidenced that, among patients, higher expressive suppression of emotions, difficulties in identifying feelings and interpersonal problems, and a lower cognitive reappraisal of emotions predicted lower QoL. Data suggest that the QoL of patients with DGBIs is affected not only by common risk factors (e.g., interpersonal problems) but also by specific difficulties in processing and regulating emotions. The implications of these findings are discussed.
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Affiliation(s)
- Agostino Brugnera
- Department of Human and Social Sciences, University of Bergamo, 24129 Bergamo, Italy
| | - Chiara Remondi
- Department of Psychology, Sapienza University of Rome, 00185 Rome, Italy;
| | - Antonino La Tona
- Department of Human and Social Sciences, University of Bergamo, 24129 Bergamo, Italy
| | - Greta Nembrini
- Department of Human and Social Sciences, University of Bergamo, 24129 Bergamo, Italy
| | - Gianluca Lo Coco
- Department of Psychological Sciences, University of Palermo, 90133 Palermo, Italy
| | - Angelo Compare
- Department of Human and Social Sciences, University of Bergamo, 24129 Bergamo, Italy
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Bresciani G, Ciancaleoni G, Zacchini S, Biancalana L, Pampaloni G, Funaioli T, Marchetti F. Mixed valence triiron complexes from the conjugation of [Fe IFe I] and [Fe II] complexes via intermolecular carbyne/alkyne coupling. Dalton Trans 2024; 53:4299-4313. [PMID: 38345429 DOI: 10.1039/d4dt00079j] [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] [Indexed: 02/28/2024]
Abstract
We present a new synthetic strategy for obtaining mixed-valence triiron complexes where the metal centers are bridged by a novel, highly functionalized hydrocarbyl ligand. The alkynyl-vinyliminium complexes [Fe2Cp2(CO)(μ-CO){μ-η1:η3-C(X-CCH)CHCNMe2}]CF3SO3 (X = 4-C6H4, [2a1]CF3SO3; X = (CH2)3, [2a2]CF3SO3) were synthesized in almost quantitative yields from the aminocarbyne precursor [Fe2Cp2(CO)2(μ-CO){μ-CNMe2}]CF3SO3, [1a]CF3SO3, and the di-alkynes HCC-X-CCH. Then, the ferracycle [Fe(Cp)(CO){C(NMe2)CHC(4-C6H4CCH)C(O)}], 4a1, was produced in 47% yield from the cleavage of [2a1]CF3SO3 promoted by pyrrolidine. Subsequent reactions of the acetonitrile adducts [Fe2Cp2(CO)(μ-CO)(NCMe){μ-CNMe(R)}]CF3SO3 (R = Me, [1aACN]CF3SO3; R = Xyl, [1bACN]CF3SO3) ([FeIFeI]) with 4a1 ([FeII]) at room temperature resulted in the formation of [FeIFeIFeII] complexes [Fe2Cp2(CO)(μ-CO){μ-η1:η3-C(X-CCHC(NMe2)FeCp(CO)CO)CHCNMe(R)}]CF3SO3 (R = Me, [5a1]CF3SO3; R = Xyl, [5b1]CF3SO3) in yields ranging from 56% to 64%. The new products were characterized by IR and multinuclear NMR spectroscopy, and the structures of [2a2]CF3SO3 and 4a1 were confirmed by single crystal X-ray diffraction. Cyclic voltammetry and spectroelectrochemical studies on [5a1]+ have revealed that reduction and oxidation events occur almost independently at the [FeIFeI] and [FeII] units, respectively. This observation underscores a minimal electronic interaction between the two fragments within the triiron complex. Accordingly, DFT studies pointed out that the HOMO and LUMO orbitals are predominantly localized in the two distinct compartments of [5a1]+.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Gianluca Ciancaleoni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Stefano Zacchini
- University of Bologna, Department of Industrial Chemistry "Toso Montanari", Viale Risorgimento 4, I-40136 Bologna, Italy
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Lorenzo Biancalana
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Tiziana Funaioli
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
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Garufi A, Pettinari R, Monteonofrio L, Puliani G, Virdia I, Appetecchia M, Marchetti F, Cirone M, Soddu S, D'Orazi G. NRF2 activation in BON‑1 neuroendocrine cancer cells reduces the cytotoxic effects of a novel Ruthenium(II)‑curcumin compound: A pilot study. Oncol Rep 2024; 51:36. [PMID: 38186307 DOI: 10.3892/or.2024.8695] [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: 07/31/2023] [Accepted: 12/18/2023] [Indexed: 01/09/2024] Open
Abstract
Gastroenteropancreatic neuroendocrine neoplasms (GEP‑NEN) are a group of rare tumors whose specific pathogenetic mechanisms of resistance to therapies have not been completely revealed yet. Chemotherapy is the main therapeutic approach in patients with GEP‑NEN, however, novel combination regimens and targeted therapy are continuously explored. In the present study, the anticancer effect of a novel Ruthenium (Ru)(II)‑Bisdemethoxycurcumin (Ru‑bdcurc) compound was evaluated in BON‑1 cell line, one of the few cell lines derived from GEP‑NEN, largely used in experimental research of this type of tumors. The experimental data revealed that the Ru‑bdcurc compound induced cell death in a dose‑dependent manner, in vitro. Biochemical studies demonstrated that, in response to the lower dose of treatment, BON‑1 cells activated the nuclear factor erythroid 2‑related factor 2 (NRF2) pathway with induction of some of its targets including catalase and p62 as well as of the antiapoptotic marker Bcl2, all acting as chemoresistance mechanisms. NRF2 induction associated also with increased expression of endogenous p53 which is reported to be dysfunctional in BON‑1 cells and to inhibit apoptosis. Genetic or pharmacologic targeting of NRF2 inhibited the activation of the NRF2 pathway, as well as of endogenous dysfunctional p53, in response to the lower dose of Ru‑bdcurc, increasing the cell death. To assess the interplay between NRF2 and dysfunctional p53, genetic targeting of p53 showed reduced activation of the NRF2 pathway in response to the lower dose of Ru‑bdcurc, increasing the cell death. These findings identified for the first time a possible dysfunctional p53/NRF2 interplay in BON‑1 cell line that can be a novel key determinant in cell resistance to cytotoxic agents to be evaluated also in GEP‑NEN.
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Affiliation(s)
- Alessia Garufi
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Riccardo Pettinari
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, I-62032 Camerino (MC), Italy
| | - Laura Monteonofrio
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Giulia Puliani
- Oncological Endocrinology Unit, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Ilaria Virdia
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Marialuisa Appetecchia
- Oncological Endocrinology Unit, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Fabio Marchetti
- Chemistry Interdisciplinary Project (CHIP), School of Science and Technology, University of Camerino, I-62032 Camerino (MC), Italy
| | - Mara Cirone
- Department of Experimental Medicine, Sapienza University of Rome, Laboratory Affiliated to Pasteur Institute Italy Foundation Cenci Bolognetti, I-00161 Rome, Italy
| | - Silvia Soddu
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
| | - Gabriella D'Orazi
- Unit of Cellular Networks and Molecular Therapeutic Targets, IRCCS Regina Elena National Cancer Institute, I-00144 Rome, Italy
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Gallo E, Bellucci L, Carlotto S, Bottaro G, Babetto L, Giordano L, Marchetti F, Samaritani S, Armelao L, Labella L. Aluminium 8-Hydroxyquinolinate N-Oxide as a Precursor to Heterometallic Aluminium-Lanthanide Complexes. Molecules 2024; 29:451. [PMID: 38257364 PMCID: PMC10821320 DOI: 10.3390/molecules29020451] [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: 12/17/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
A reaction in anhydrous toluene between the formally unsaturated fragment [Ln(hfac)3] (Ln3+ = Eu3+, Gd3+ and Er3+; Hhfac = hexafluoroacetylacetone) and [Al(qNO)3] (HqNO = 8-hydroxyquinoline N-oxide), here prepared for the first time from [Al(OtBu)3] and HqNO, affords the dinuclear heterometallic compounds [Ln(hfac)3Al(qNO)3] (Ln3+ = Eu3+, Gd3+ and Er3+) in high yields. The molecular structures of these new compounds revealed a dinuclear species with three phenolic oxygen atoms bridging the two metal atoms. While the europium and gadolinium complexes show the coordination number (CN) 9 for the lanthanide centre, in the complex featuring the smaller erbium ion, only two oxygens bridge the two metal atoms for a resulting CN of 8. The reaction of [Eu(hfac)3] with [Alq3] (Hq = 8-hydroxyquinoline) in the same conditions yields a heterometallic product of composition [Eu(hfac)3Alq3]. A recrystallization attempt from hot heptane in air produced single crystals of two different morphologies and compositions: [Eu2(hfac)6Al2q4(OH)2] and [Eu2(hfac)6(µ-Hq)2]. The latter compound can be directly prepared from [Eu(hfac)3] and Hq at room temperature. Quantum mechanical calculations confirm (i) the higher stability of [Eu(hfac)3Al(qNO)3] vs. the corresponding [Eu(hfac)3Alq3] and (ii) the preference of the Er complexes for the CN 8, justifying the different behaviour in terms of the Lewis acidity of the metal centre.
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Affiliation(s)
- Elisa Gallo
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy (L.G.)
| | - Luca Bellucci
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy (L.G.)
- ICMATE-CNR and INSTM, Presso Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy; (S.C.)
| | - Silvia Carlotto
- ICMATE-CNR and INSTM, Presso Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy; (S.C.)
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
| | - Gregorio Bottaro
- ICMATE-CNR and INSTM, Presso Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy; (S.C.)
| | - Luca Babetto
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
| | - Luca Giordano
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy (L.G.)
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy (L.G.)
| | - Simona Samaritani
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy (L.G.)
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, I-35131 Padova, Italy
- Dipartimento di Scienze Chimiche e Tecnologie dei Materiali (DSCTM), Consiglio Nazionale Delle Ricerche, Piazzale A. Moro 7, I-00185 Roma, Italy
| | - Luca Labella
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, I-56124 Pisa, Italy (L.G.)
- ICMATE-CNR and INSTM, Presso Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, I-35131 Padova, Italy; (S.C.)
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8
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Saviozzi C, Biancalana L, Funaioli T, Bortoluzzi M, De Franco M, Guelfi M, Gandin V, Marchetti F. Triiron Complex with N-Ferrocenyl Aminocarbyne Ligand Bridging a Diiron Core: DFT, Electrochemical, and Biological Insights. Inorg Chem 2024; 63:1054-1067. [PMID: 38166407 DOI: 10.1021/acs.inorgchem.3c03408] [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] [Indexed: 01/04/2024]
Abstract
The first N-ferrocenyl aminocarbyne complex, [Fe2Cp2(CO)2(μ-CO){μ-CN(Me)(Fc)}]CF3SO3 ([2]CF3SO3), was synthesized with an 88% yield from [Fe2Cp2(CO)4], isocyanoferrocene (CNFc), and methyl triflate. The synthesis proceeded through the intermediate formation of [Fe2Cp2(CO)3(CNFc)], 1. Multinuclear NMR experiments revealed the presence of cis and trans isomers for [2]CF3SO3 in organic solvents, in agreement with DFT outcomes. Electrochemical and spectroelectrochemical studies demonstrated one reduction process occurring prevalently at the diiron core and one oxidation involving the ferrocenyl substituent. The oxidation process is expected to favor the redox activation of [2]+ in a biological environment. Both [2]CF3SO3 and its phenyl analogue [Fe2Cp2(CO)2(μ-CO){μ-CN(Me)(Ph)}]CF3SO3 ([3]CF3SO3), prepared for comparison, exerted moderate antiproliferative activity against the human cancer cell lines A431, HCT-15, PSN-1, 2008, and U1285. However, [2]CF3SO3 exhibited a higher cytotoxicity than [3]CF3SO3, showed a substantial ability to induce intracellular ROS production, and outperformed cisplatin in a three-dimensional SCLC cell model.
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Affiliation(s)
- Chiara Saviozzi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Tiziana Funaioli
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Marco Bortoluzzi
- Department of Molecular Science and Nanosystems, University of Venezia "Ca' Foscari", Via Torino 155, I-30170 Mestre (VE), Italy
| | - Michele De Franco
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, I-35131 Padova, Italy
| | - Massimo Guelfi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Valentina Gandin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, I-35131 Padova, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
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9
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Bresciani G, Cervinka J, Kostrhunova H, Biancalana L, Bortoluzzi M, Pampaloni G, Novohradsky V, Brabec V, Marchetti F, Kasparkova J. N-Indolyl diiron vinyliminium complexes exhibit antiproliferative effects in cancer cells associated with disruption of mitochondrial homeostasis, ROS scavenging, and antioxidant activity. Chem Biol Interact 2023; 385:110742. [PMID: 37802407 DOI: 10.1016/j.cbi.2023.110742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 08/08/2023] [Revised: 09/23/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
The indole scaffold has been established as a key organic moiety for developing new drugs; on the other hand, a range of diiron bis-cyclopentadienyl complexes have recently emerged for their promising anticancer potential. Here, we report the synthesis of novel diiron complexes with an indole-functionalized vinyliminium ligand (2-5) and an indole-lacking analogue for comparative purposes (6), which were characterized by analytical and spectroscopic techniques. Complexes 2-6 are substantially stable in DMSO‑d6 and DMEM-d solutions at 37 °C (8% average degradation after 48 h) and display a balanced hydrophilic/lipophilic behaviour (LogPow values in the range -0.32 to 0.47), associated with appreciable water solubility. The complexes display selective antiproliferative potency towards several cancer cells in monolayer cultures, mainly in the low micromolar range, with reduced toxicity towards noncancerous epithelial cells. Thus, the cytotoxicity of the complexes is comparable to or better than clinically used metallopharmaceutical cisplatin. Comparing the antiproliferative activity obtained for complexes containing different ligands, we confirmed the importance of the indolyl group in the mechanism of antiproliferative activity of these complexes. Cell-based mechanistic studies suggest that the investigated diiron vinyliminium complexes (DVCs) show cytostatic rather than cytotoxic effects and subsequently induce a population of cells to undergo apoptosis. Furthermore, the molecular mechanism of action involves interactions with mitochondrial DNA and proteins, the reactive oxygen species (ROS)-scavenging properties and antioxidant activity of these complexes in cancer cells. This study highlights the importance of DVCs to their cancer cell activity and reinforces their prospective therapeutic potential as anticancer agents.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy
| | - Jakub Cervinka
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic; Masaryk University, Faculty of Science, Department of Biochemistry, Kamenice 5, CZ-62500, Brno, Czech Republic
| | - Hana Kostrhunova
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic
| | - Lorenzo Biancalana
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy
| | - Marco Bortoluzzi
- Ca' Foscari University of Venice, Department of Molecular Sciences and Nanosystems, Via Torino 155, I-30175, Mestre, Venezia, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy
| | - Vojtech Novohradsky
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic
| | - Viktor Brabec
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic; Department of Biophysics, Palacky University, Slechtitelu 27, CZ-78371, Olomouc, Czech Republic
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124, Pisa, Italy.
| | - Jana Kasparkova
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61200, Brno, Czech Republic.
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10
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Bresciani G, Vančo J, Funaioli T, Zacchini S, Malina T, Pampaloni G, Dvořák Z, Trávníček Z, Marchetti F. Anticancer Potential of Diruthenium Complexes with Bridging Hydrocarbyl Ligands from Bioactive Alkynols. Inorg Chem 2023; 62:15875-15890. [PMID: 37713240 PMCID: PMC10548421 DOI: 10.1021/acs.inorgchem.3c01731] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Indexed: 09/16/2023]
Abstract
Diruthenacyclopentenone complexes of the general composition [Ru2Cp2(CO)2{μ-η1:η3-CH═C(C(OH)(R))C(═O)}] (2a-c; Cp = η5-C5H5) were synthesized in 94-96% yields from the reactions of [Ru2Cp2(CO)2{μ-η1:η3-C(Ph)═C(Ph)C(═O)}] (1) with 1-ethynylcyclopentanol, 17α-ethynylestradiol, and 17-ethynyltestosterone, respectively, in toluene at reflux. Protonation of 2a-c by HBF4 afforded the corresponding allenyl derivatives [Ru2Cp2(CO)3{μ-η1:η2-CH═C═R}]BF4 (3a-c) in 85-93% yields. All products were thoroughly characterized by elemental analysis, mass spectrometry, and IR, UV-vis, and nuclear magnetic resonance spectroscopy. Additionally, 2a and 3a were investigated by cyclic voltammetry, and the single-crystal diffraction method was employed to establish the X-ray structures of 2b and 3a. The cytotoxicity in vitro of 2b and 3a-c was evaluated against nine human cancer cell lines (A2780, A2780R, MCF-7, HOS, A549, PANC-1, Caco-2, PC-3, and HeLa), while the selectivity was assessed on normal human lung fibroblast (MRC-5). Overall, complexes exert stronger cytotoxicity than cisplatin, and 3b (comprising 17α-estradiol derived ligand) emerged as the best-performing complex. Inductively coupled plasma mass spectrometry cellular uptake studies in A2780 cells revealed a higher level of internalization for 3b and 3c compared to 2b, 3a, and the reference compound RAPTA-C. Experiments conducted on A2780 cells demonstrated a noteworthy impact of 3a and 3b on the cell cycle, leading to the majority of the cells being arrested in the G0/G1 phase. Moreover, 3a moderately induced apoptosis and oxidative stress, while 3b triggered autophagy and mitochondrial membrane potential depletion.
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Affiliation(s)
- Giulio Bresciani
- University
of Pisa, Dipartimento di Chimica e Chimica
Industriale, Via G. Moruzzi
13, I-56124 Pisa, Italy
| | - Ján Vančo
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University, Šlechtitelů 27, CZ-779 00 Olomouc, Czech Republic
| | - Tiziana Funaioli
- University
of Pisa, Dipartimento di Chimica e Chimica
Industriale, Via G. Moruzzi
13, I-56124 Pisa, Italy
| | - Stefano Zacchini
- University
of Bologna, Dipartimento di Chimica Industriale
“Toso Montanari”, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Tomáš Malina
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University, Šlechtitelů 27, CZ-779 00 Olomouc, Czech Republic
| | - Guido Pampaloni
- University
of Pisa, Dipartimento di Chimica e Chimica
Industriale, Via G. Moruzzi
13, I-56124 Pisa, Italy
| | - Zdeněk Dvořák
- Department
of Cell Biology and Genetics, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-779
00 Olomouc, Czech
Republic
| | - Zdeněk Trávníček
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute, Palacký University, Šlechtitelů 27, CZ-779 00 Olomouc, Czech Republic
| | - Fabio Marchetti
- University
of Pisa, Dipartimento di Chimica e Chimica
Industriale, Via G. Moruzzi
13, I-56124 Pisa, Italy
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11
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Xhafa S, Olivieri L, Di Nicola C, Pettinari R, Pettinari C, Tombesi A, Marchetti F. Copper and Zinc Metal-Organic Frameworks with Bipyrazole Linkers Display Strong Antibacterial Activity against Both Gram+ and Gram- Bacterial Strains. Molecules 2023; 28:6160. [PMID: 37630412 PMCID: PMC10459509 DOI: 10.3390/molecules28166160] [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: 07/27/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023] Open
Abstract
Here, we report a new synthetic protocol based on microwave-assisted synthesis (MAS) for the preparation of higher yields of zinc and copper in MOFs based on different bis(pyrazolyl)-tagged ligands ([M(BPZ)]n where M = Zn(II), Cu(II), H2BPZ = 4,4'-bipyrazole, [M(BPZ-NH2)]n where M = Zn(II), Cu(II); H2BPZ-NH2 = 3-amino-4,4'-bipyrazole, and [Mx(Me4BPZPh)] where M = Zn(II), x = 1; Cu(II), x = 2; H2Me4BPZPh = bis-4'-(3',5'-dimethyl)-pyrazolylbenzene) and, for the first time, a detailed study of their antibacterial activity, tested against Gram-negative (E. coli) and Gram-positive (S. aureus) bacteria, as representative agents of infections. The results show that all MOFs exert a broad-spectrum activity and strong efficiency in bacterial growth inhibition, with a mechanism of action based on the surface contact of MOF particles with bacterial cells through the so-called "chelation effect" and reactive oxygen species (ROS) generation, without a significant release of Zn(II) and Cu(II) ions. In addition, morphological changes were elucidated by using a scanning electron microscope (SEM) and bacterial cell damage was further confirmed by a confocal laser scanning microscopy (CLSM) test.
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Affiliation(s)
- Sonila Xhafa
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
| | - Laura Olivieri
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
| | - Corrado Di Nicola
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
| | - Riccardo Pettinari
- ChIP Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy (C.P.); (A.T.)
| | - Claudio Pettinari
- ChIP Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy (C.P.); (A.T.)
| | - Alessia Tombesi
- ChIP Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy (C.P.); (A.T.)
| | - Fabio Marchetti
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
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12
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Bresciani G, Boni S, Funaioli T, Zacchini S, Pampaloni G, Busto N, Biver T, Marchetti F. Adding Diversity to a Diruthenium Biscyclopentadienyl Scaffold via Alkyne Incorporation: Synthesis and Biological Studies. Inorg Chem 2023; 62:12453-12467. [PMID: 37478132 PMCID: PMC10410612 DOI: 10.1021/acs.inorgchem.3c01644] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Indexed: 07/23/2023]
Abstract
We report the synthesis and the assessment of the anticancer potential of two series of diruthenium biscyclopentadienyl carbonyl complexes. Novel dimetallacyclopentenone compounds (2-4) were obtained (45-92% yields) from the thermal reaction (PhCCPh exchange) of [Ru2Cp2(CO)(μ-CO){μ-η1:η3-C(Ph)═C(Ph)C(═O)}], 1, with alkynes HCCR [R = C5H4FeCp (Fc), 3-C6H4(Asp), 2-naphthyl; Cp = η5-C5H5, Asp = OC(O)-2-C6H4C(O)Me]. Protonation of 1-3 by HBF4 afforded the corresponding μ-alkenyl derivatives 5-7, in 40-86% yields. All products were characterized by IR and NMR spectroscopy; moreover, cyclic voltammetry (1, 2, 5, 7) and single-crystal X-ray diffraction (5, 7) analyses were performed on representative compounds. Complexes 5-7 revealed a cytotoxic activity comparable to that of cisplatin in A549 (lung adenocarcinoma), SW480 (colon adenocarcinoma), and ovarian (A2780) cancer cell lines, and 2, 5, 6, and 7 overcame cisplatin resistance in A2780cis cells. Complexes 2, 5, and 7 (but not the aspirin derivative 6) induced an increase in intracellular ROS levels. Otherwise, 6 strongly stabilizes and elongates natural DNA (from calf thymus, CT-DNA), suggesting a possible intercalation binding mode, whereas 5 is less effective in binding CT-DNA, and 7 is ineffective. This trend is reversed concerning RNA, and in particular, 7 is able to bind poly(rA)poly(rU) showing selectivity for this nucleic acid. Complexes 5-7 can interact with the albumin protein with a thermodynamic signature dominated by hydrophobic interactions. Overall, we show that organometallic species based on the Ru2Cp2(CO)x scaffold (x = 2, 3) are active against cancer cells, with different incorporated fragments influencing the interactions with nucleic acids and the production of ROS.
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Affiliation(s)
- Giulio Bresciani
- University
of Pisa, Dipartimento di
Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Serena Boni
- University
of Pisa, Dipartimento di
Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Tiziana Funaioli
- University
of Pisa, Dipartimento di
Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Stefano Zacchini
- University
of Bologna, Dipartimento di
Chimica Industriale “Toso Montanari”, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Guido Pampaloni
- University
of Pisa, Dipartimento di
Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Natalia Busto
- University
of Burgos, Departamento de
Química, Plaza
Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Tarita Biver
- University
of Pisa, Dipartimento di
Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- University
of Pisa, Dipartimento di
Chimica e Chimica Industriale, Via G. Moruzzi 13, I-56124 Pisa, Italy
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13
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Bellucci L, Carlotto S, Bottaro G, Babetto L, Labella L, Gallo E, Marchetti F, Samaritani S, Armelao L. Competing excitation paths in luminescent heterobimetallic Ln-Al complexes: Unraveling interactions via experimental and theoretical investigations. iScience 2023; 26:106614. [PMID: 37250321 PMCID: PMC10214411 DOI: 10.1016/j.isci.2023.106614] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/15/2023] [Accepted: 03/31/2023] [Indexed: 05/31/2023] Open
Abstract
The interest for heterometallic lanthanide-d or-p metal (Ln-M) complexes is growing because of a potential cooperative or synergistic effect related to the proximity of two different metals in the same molecular architecture affording special tunable physical properties. To exploit the potentiality of Ln-M complexes, suitable synthetic approaches, and the in-depth understanding of the effect of each building block on their properties are mandatory. Here, we report the study on a family of heterometallic luminescent complexes [Ln(hfac)3Al(L)3], Ln= Eu3+ and Tb3+. Using different L ligands, we investigated the effect of the steric and electronic properties of the Al(L)3 fragment, highlighting the general validity of the employed synthetic route. A marked difference in the light emission of [Eu(hfac)3Al(L)3] and [Tb(hfac)3Al(L)3] complexes has been observed. Thanks to photoluminescence experiments and Density Functional Theory calculations, Ln3+ emissions are explained with a model involving two non-interacting excitation paths through hfac or Al(L)3 ligands.
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Affiliation(s)
- Luca Bellucci
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Silvia Carlotto
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Gregorio Bottaro
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Luca Babetto
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Luca Labella
- CNR ICMATE and INSTM, Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Elisa Gallo
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Simona Samaritani
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche and INSTM, Università di Padova, via Marzolo 1, 35131 Padova, Italy
- Dipartimento di Scienze Chimiche e Tecnologie dei Materiali (DSCTM) Consiglio Nazionale delle Ricerche Piazzale A. Moro 7, 00185 Roma, Italy
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14
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Bonaldi L, Bortoluzzi M, Zacchini S, Pampaloni G, Marchetti F, Biancalana L. Triazine Chalcogenones from Thiocyanate or Selenocyanate Addition to Tetrazine Ligands in Ruthenium Arene Complexes. Inorg Chem 2023; 62:7814-7833. [PMID: 37167024 DOI: 10.1021/acs.inorgchem.3c00459] [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] [Indexed: 05/13/2023]
Abstract
The chemistry of 1,2,4,5-tetrazines has attracted considerable interest both from a synthetic and applicative standpoint. Recently, regioselective reactions with alkynes and alkenes have been reported to be favored once the tetrazine ring is coordinated to Re(I), Ru(II), and Ir(III) centers. Aiming to further explore the effects of metal coordination, herein, we unveil the unexplored reactivity of tetrazines with chalcogenocyanate anions. Thus, ruthenium(II) tetrazine complexes, [RuCl{κ2N-3-(2-pyridyl)-6-R-1,2,4,5-tetrazine}(η6-arene)]+ (arene = p-cymene, R = H, [1a]+, R = Me, [1b]+, R = 2-pyridyl, [1c]+; arene = C6Me6, R = H, [1d]+, R = Me, [1e]+; PF6- salts), reacted quantitatively and in mild conditions with M(ECN) salts (M = Na, K, Bu4N; E = O, S, Se). The addition of thiocyanate or selenocyanate to the tetrazine ligand is regioselective and afforded, via N2 release, 1,2,4-triazine-5-chalcogenone heterocycles, the one with selenium being unprecedented. The novel ruthenium complexes [RuCl{κ2N-(2-pyridyl)}{triazine chalcogenone}(η6-arene)] 2a-e (sulfur), 3b, 3d, and 3e (selenium) were characterized by analytical (CHNS analyses, conductivity), spectroscopic (IR, multinuclear and two-dimensional (2D) NMR), and spectrometric (electrospray ionization mass spectrometry (ESI-MS)) techniques. According to density functional theory (DFT) calculations, the nucleophilic attack of SCN- on the tetrazine ring is kinetically driven. Compound 2b is selectively and reversibly mono-protonated on the triazine ring by HCl or other strong acids, affording a single tautomer. When reactions of chalcogenocyanates were performed on the 2,2'-bipyridine (bpy) complex [RuCl(bpy)(η6-p-cymene)]+, the chloride substitution products [Ru(ECN)(bpy)(η6-p-cymene)]+ (E = O, [4]+; E = S, [5]+; E = Se, [6]+) were obtained in 82-90% yields (PF6- salts). Combined spectroscopic data (IR, 1H/13C/77Se NMR) was revealed to be a useful tool to study the linkage isomerism of the chalcogenocyanate ligand in [4-6]+.
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Affiliation(s)
- Lorenzo Bonaldi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Marco Bortoluzzi
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, I-30175 Mestre, Venezia, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
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15
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Bresciani G, Zacchini S, Pampaloni G, Bortoluzzi M, Marchetti F. Diiron Aminocarbyne Complexes with NCE− Ligands (E = O, S, Se). Molecules 2023; 28:molecules28073251. [PMID: 37050013 PMCID: PMC10096932 DOI: 10.3390/molecules28073251] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 04/09/2023] Open
Abstract
Diiron μ-aminocarbyne complexes [Fe2Cp2(NCMe)(CO)(μ-CO){μ-CN(Me)(R)}]CF3SO3 (R = Xyl, [1aNCMe]CF3SO3; R = Me, [1bNCMe]CF3SO3; R = Cy, [1cNCMe]CF3SO3; R = CH2Ph, [1dNCMe]CF3SO3), freshly prepared from tricarbonyl precursors [1a–d]CF3SO3, reacted with NaOCN (in acetone) and NBu4SCN (in dichloromethane) to give [Fe2Cp2(kN-NCO)(CO)(μ-CO){μ-CN(Me)(R)}] (R = Xyl, 2a; Me, 2b; Cy, 2c) and [Fe2Cp2(kN-NCS)(CO)(μ-CO){μ-CN(Me)(CH2Ph)}], 3 in 67–81% yields via substitution of the acetonitrile ligand. The reaction of [1aNCMe–1cNCMe]CF3SO3 with KSeCN in THF at reflux temperature led to the cyanide complexes [Fe2Cp2(CN)(CO)(μ-CO){μ-CNMe(R)}], 6a–c (45–67%). When the reaction of [1aNCMe]CF3SO3 with KSeCN was performed in acetone at room temperature, subsequent careful chromatography allowed the separation of moderate amounts of [Fe2Cp2(kSe-SeCN)(CO)(μ-CO){μ-CN(Me)(Xyl)}], 4a, and [Fe2Cp2(kN-NCSe)(CO)(μ-CO){μ-CN(Me)(Xyl)}], 5a. All products were fully characterized by elemental analysis, IR, and multinuclear NMR spectroscopy; moreover, the molecular structure of trans-6b was ascertained by single crystal X-ray diffraction. DFT calculations were carried out to shed light on the coordination mode and stability of the {NCSe-} fragment.
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Affiliation(s)
- Giulio Bresciani
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
- Interuniversity Consortium for Chemical Reactivity and Catalysis, CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Stefano Zacchini
- Interuniversity Consortium for Chemical Reactivity and Catalysis, CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
- Interuniversity Consortium for Chemical Reactivity and Catalysis, CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Marco Bortoluzzi
- Interuniversity Consortium for Chemical Reactivity and Catalysis, CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
- Department of Molecular Science and Nanosystems, University of Venezia “Ca’ Foscari”, Via Torino 155, I-30170 Mestre, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
- Interuniversity Consortium for Chemical Reactivity and Catalysis, CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
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16
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Zappelli C, Ciancaleoni G, Zacchini S, Marchetti F. Construction of Two-Faced (Hetero)hydrocarbyl Diiron Complexes Mediated by the Interplay of Ligands. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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17
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Romani D, Marchetti F, Di Nicola C, Cuccioloni M, Gong C, Eleuteri AM, Galindo A, Fadaei-Tirani F, Nabissi M, Pettinari R. Multitarget-Directed Gallium(III) Tris(acyl-pyrazolonate) Complexes Induce Ferroptosis in Cancer Cells via Dysregulation of Cell Redox Homeostasis and Inhibition of the Mevalonate Pathway. J Med Chem 2023; 66:3212-3225. [PMID: 36802330 PMCID: PMC10009752 DOI: 10.1021/acs.jmedchem.2c01374] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
A series of Ga(Qn)3 coordination compounds have been synthesized, where HQn is 1-phenyl-3-methyl-4-RC(═O)-pyrazolo-5-one. The complexes have been characterized through analytical data, NMR and IR spectroscopy, ESI mass spectrometry, elemental analysis, X-ray crystallography, and density functional theory (DFT) studies. Cytotoxic activity against a panel of human cancer cell lines was determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, with interesting results in terms of both cell line selectivity and toxicity values compared with cisplatin. The mechanism of action was explored by spectrophotometric, fluorometric, chromatographic, immunometric, and cytofluorimetric assays, SPR biosensor binding studies, and cell-based experiments. Cell treatment with gallium(III) complexes promoted several cell death triggering signals (accumulation of p27, PCNA, PARP fragments, activation of the caspase cascade, and inhibition of the mevalonate pathway) and induced changes in cell redox homeostasis (decreased levels of GSH/GPX4 and NADP(H), increased reactive oxygen species (ROS) and 4-hydroxynonenal (HNE), mitochondrial damage, and increased activity of CPR and CcO), identifying ferroptosis as the mechanism responsible for cancer cell death.
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Affiliation(s)
| | | | | | | | | | | | - Agustín Galindo
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, Aptdo 1203, 41071 Sevilla, Spain
| | - Farzaneh Fadaei-Tirani
- Institut of Chemical Sciences and Engineering, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne CH-1015, Switzerland
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18
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Colaceci S, Lumaca A, Galletti C, Del Grande A, Robu AI, Terenzi I, Giuliani V, Lupi C, Ricciuto V, Marchetti F. Italian midwives in Europe: a qualitative study on the experiences of professional migration. Ann Ig 2023; 35:136-148. [PMID: 35603971 DOI: 10.7416/ai.2022.2528] [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] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Aim To explore the reasons for Italian midwives' decision to migrate, and their lived professional and emotional experiences. Methods A descriptive phenomenological study was conducted recruiting Italian midwives who were working abroad in European countries. We offered a telephone or web interview. Two researchers conducted, audio-recorded, and fully transcribed the interviews and other two researchers, independently, performed a content analysis. Results Thirty-two midwives having professional experiences in the UK, Ireland, Germany, Switzerland, and Spain were interviewed. Five themes emerged: 1) Education, 2) Migration decision-making, 3) Professional experience abroad, 4) Midwives' perceptions of their role, 5) Satisfaction versus desire to return. Our findings show a general dissatisfaction with Italian job opportunities in terms both of access to employment and work conditions. This scenario is complicated by the status of the professional midwifery in Italy. Conclusion Stakeholders should ensure that the migration of Italian midwives is not synonymous with dispersion but is a channel of professional growth and mutual exchange.
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Affiliation(s)
- S Colaceci
- Departmental Faculty of Medicine and Surgery, Saint Camillus International University of Health Sciences (UniCamillus), Rome, Italy
| | - A Lumaca
- Hospital-University Agency, Siena, Italy
| | - C Galletti
- Institute of Public Health, Catholic University of the Sacred Heart, Rome, Italy
| | - A Del Grande
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - A I Robu
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - I Terenzi
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - V Giuliani
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - C Lupi
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - V Ricciuto
- Departmental Faculty of Medicine and Surgery, Saint Camillus International University of Health Sciences (UniCamillus), Rome, Italy
| | - F Marchetti
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
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19
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Garufi A, Pettinari R, Marchetti F, Cirone M, D’Orazi G. NRF2 and Bip Interconnection Mediates Resistance to the Organometallic Ruthenium-Cymene Bisdemethoxycurcumin Complex Cytotoxicity in Colon Cancer Cells. Biomedicines 2023; 11:biomedicines11020593. [PMID: 36831129 PMCID: PMC9953010 DOI: 10.3390/biomedicines11020593] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023] Open
Abstract
Organometallic ruthenium (Ru)(II)-cymene complexes display promising pharmacological properties and might represent alternative therapeutic agents in medical applications. Polyphenols, such as curcumin and curcuminoids, display beneficial properties in medicine, including chemoprevention. Here we analyzed the anticancer effect of a cationic Ruthenium (Ru)(II)-cymene Bisdemethoxycurcumin (Ru-bdcurc) complex. The experimental data show that Ru-bdcurc induced cell death of colon cancer cells in vitro. In response to treatment, cancer cells activated the endoplasmic reticulum (ER)-resident chaperone GRP78/BiP and NRF2, the master regulators of the unfolded protein response (UPR) and the antioxidant response, respectively. Pharmacologic targeting of either NRF2 or BiP potentiated the cytotoxic effect of Ru-bdcurc. We also found that NRF2 and UPR pathways were interconnected as the inhibition of NRF2 reduced BiP protein levels. Mechanistically, the increased Ru-bdcurc-induced cell death, following NRF2 or BiP inhibition, correlated with the upregulation of the UPR apoptotic marker CHOP and with increased H2AX phosphorylation, a marker of DNA damage. The findings reveal that BiP and NRF2 interconnection was a key regulator of colon cancer cells resistance to Ru-bdcurc cytotoxic effect. Targeting that interconnection overcame the protective mechanism and enhanced the antitumor effect of the Ru-bdcurc compound.
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Affiliation(s)
- Alessia Garufi
- Department of Research and Advanced Technologies, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Riccardo Pettinari
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, 62032 Camerino, Italy
| | - Fabio Marchetti
- Chemistry Interdisciplinary Project (CHIP), School of Science and Technology, University of Camerino, 62032 Camerino, Italy
| | - Mara Cirone
- Laboratory Affiliated to Pasteur Institute Italy Foundation Cenci Bolognetti, Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Gabriella D’Orazi
- Department of Research and Advanced Technologies, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
- Department of Neurosciences, Imaging and Clinical Sciences, University “G. D’Annunzio”, 66013 Chieti, Italy
- School of Medicine, UniCamillus International University of Health Sciences, 00100 Rome, Italy
- Correspondence:
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20
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Bellucci L, Fioravanti L, Armelao L, Bottaro G, Marchetti F, Pineider F, Poneti G, Samaritani S, Labella L. Size Selectivity in Heterolanthanide Molecular Complexes with a Ditopic Ligand. Chemistry 2023; 29:e202202823. [PMID: 36200677 PMCID: PMC10100000 DOI: 10.1002/chem.202202823] [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: 09/09/2022] [Indexed: 11/06/2022]
Abstract
The similar reactivity of lanthanides generally leads to statistically populated polynuclear complexes, making the rational design of ordered hetero-lanthanide compounds extremely challenging. Here we report on the site selectivity in hetero-lanthanide tetranuclear complexes afforded by the relatively simple ditopic pyterpyNO ligand (4'-(4-pyridil)-2,2':6',2"-terpyridine N-oxide). The sequential room temperature reaction of RE2 (tta)6 (pyterpyNO)2 (where RE=Y, (1); Eu, (2), Dy, (3) Htta=2-thenoyltrifluoroacetone) with La(tta)3 dme (dme=dimethoxyethane) yielded Y2 La2 (tta)12 (pyterpyNO)2 (4), Dy2 La2 (tta)12 (pyterpyNO)2 (5) and Eu2 La2 (tta)12 (pyterpyNO)2 (6). Single crystals X-ray diffraction studies showed that 4, 5 and 6 are isostructural, featuring a tetranuclear structure with two different metal coordination sites with coordination numbers 8 (CN8) and 9 (CN9). The two smaller cations are mainly bridged by the O-donor atoms of the NO groups of two pyterpyNO ligands (CN8), while the larger lanthanum centres are bound by a terpyridine unit (CN9). Size selectivity has been studied with structural and magnetic studies in the solid state and through 19 F NMR and photoluminescence studies in solution, showing a direct dependence on the difference of ionic radii of the ions and yielding a 91 % selectivity for 4. Furthermore, 19 F NMR, X-ray and PL studies pointed out that the nature of the product is independent from the synthetic route for compound Eu2 Y2 (tta)12 (pyterpyNO)2 (7), keeping the ion selectivity also for a self-assembly reaction. Unexpectedly, these studies have evidenced that selectivity is not exclusively governed by electrostatic interactions related to size dimensions.
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Affiliation(s)
- Luca Bellucci
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124, Pisa, Italy.,Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131, Padova, Italy.,CNR ICMATE and INSTM Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Lorenzo Fioravanti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131, Padova, Italy.,CNR ICMATE and INSTM Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131, Padova, Italy.,Dipartimento di Scienze Chimiche e, Tecnologie dei Materiali (DSCTM) Consiglio Nazionale delle Ricerche, Piazzale A. Moro 7, 00185, Roma, Italy
| | - Gregorio Bottaro
- CNR ICMATE and INSTM Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Francesco Pineider
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Giordano Poneti
- Instituto de Química, Universidade Federal do Rio de Janeiro, Avenida Athos da Silveira Ramos, 149 Centro de Tecnologia - Cidade Universitária, 21941-909, Rio de Janeiro, Brazil
| | - Simona Samaritani
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124, Pisa, Italy
| | - Luca Labella
- Dipartimento di Chimica e Chimica Industriale and CIRCC, Università di Pisa, via Giuseppe Moruzzi 13, 56124, Pisa, Italy.,CNR ICMATE and INSTM Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131, Padova, Italy
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21
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Campanella B, Braccini S, Bresciani G, De Franco M, Gandin V, Chiellini F, Pratesi A, Pampaloni G, Biancalana L, Marchetti F. The choice of μ-vinyliminium ligand substituents is key to optimize the antiproliferative activity of related diiron complexes. Metallomics 2023; 15:6901513. [PMID: 36515681 DOI: 10.1093/mtomcs/mfac096] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
Diiron vinyliminium complexes constitute a large family of organometallics displaying a promising anticancer potential. The complexes [Fe2Cp2(CO)(μ-CO){μ-η1:η3-C(R3)C(R4)CN(R1)(R2)}]CF3SO3 (2a-c, 4a-d) were synthesized, assessed for their behavior in aqueous solutions (D2O solubility, Log Pow, stability in D2O/Me2SO-d6 mixture at 37°C over 48 h) and investigated for their antiproliferative activity against A2780 and A2780cisR ovarian cancer cell lines and the nontumoral one Balb/3T3 clone A31. Cytotoxicity data collected for 50 vinyliminium complexes were correlated with the structural properties (i.e. the different R1-R4 substituents) using the partial least squares methodology. A clear positive correlation emerged between the octanol-water partition coefficient and the relative antiproliferative activity on ovarian cancer cell lines, both of which appear as uncorrelated to the cancer cell selectivity. However, the different effects played by the R1-R4 substituents allow tracing guidelines for the development of novel, more effective compounds. Based on these results, three additional complexes (4p-r) were designed, synthesized and biologically investigated, revealing their ability to hamper thioredoxin reductase enzyme and to induce cancer cell production of reactive oxygen species.
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Affiliation(s)
- Beatrice Campanella
- Istituto di Chimica dei Composti Organometallici, Consiglio Nazionale delle Ricerche, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Simona Braccini
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Michele De Franco
- University of Padova, Department of Pharmaceutical and Pharmacological Sciences, Via F. Marzolo 5, I-35131 Padova, Italy
| | - Valentina Gandin
- University of Padova, Department of Pharmaceutical and Pharmacological Sciences, Via F. Marzolo 5, I-35131 Padova, Italy
| | - Federica Chiellini
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Alessandro Pratesi
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Lorenzo Biancalana
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy
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22
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Canil G, Gurruchaga-Pereda J, Braccini S, Marchetti L, Funaioli T, Marchetti F, Pratesi A, Salassa L, Gabbiani C. Synthesis, Characterization and Photoactivation Studies on the Novel Pt(IV)-Based [Pt(OCOCH 3) 3(phterpy)] Complex. Int J Mol Sci 2023; 24:ijms24021106. [PMID: 36674620 PMCID: PMC9864011 DOI: 10.3390/ijms24021106] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/09/2023] Open
Abstract
Photoactivatable Pt(IV) prodrugs represent nowadays an intriguing class of potential metal-based drugs, endowed with more chemical inertness in their oxidized form and better selectivity for the target with respect to the clinically established Pt(II) compounds. In fact, they have the possibility to be reduced by light irradiation directly at the site of interest. For this reason, we synthesized a new Pt(IV) complex, [Pt(OCOCH3)3(4'-phenyl-2,2':6',2''-terpyridine)][CF3SO3] (1), that is well soluble in aqueous medium and totally unreactive towards selected model biomolecules until its reduction. The highlight of this work is the rapid and efficient photoreduction of 1 with visible light (460 nm), which leads to its reactive Pt(II) analogue. This behavior was made possible by taking advantage of an efficient catalytic system based on flavin and NADH, which is naturally present in the cellular environment. As a comparison, the reduction of 1 was also studied with simple UV irradiation, but both UV-Vis spectrophotometry and 1H-NMR spectrometry showed that the flavin-catalyzed reduction with visible light was faster. Lastly, the reactivity against two representative biological targets, i.e., human serum albumin and one monofilament oligonucleotide fragment, was evaluated by high-resolution mass spectrometry. The results clearly pointed out that the prodrug 1 did not interact with these targets until its photoreduction to the Pt(II) analogue.
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Affiliation(s)
- Giovanni Canil
- Centro di Riferimento Oncologico di Aviano, IRCCS, Via Franco Gallini, 2, 33081 Aviano, Italy
| | - Juan Gurruchaga-Pereda
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 Donostia, Spain
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia, Spain
| | - Simona Braccini
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lorella Marchetti
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Tiziana Funaioli
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Alessandro Pratesi
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
- Correspondence: (A.P.); (C.G.)
| | - Luca Salassa
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 Donostia, Spain
- Ikerbasque, Basque Foundation for Science, 48011 Bilbao, Spain
- Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia, Kimika Fakultatea, Euskal Herriko Unibertsitatea UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia, Spain
| | - Chiara Gabbiani
- Department of Chemistry and Industrial Chemistry (DCCI), University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
- Correspondence: (A.P.); (C.G.)
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23
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Santi M, Frusca V, Ermini ML, Mapanao AK, Sarogni P, Gonnelli A, Giannini N, Zamborlin A, Biancalana L, Marchetti F, Voliani V. Hybrid nano-architectures loaded with metal complexes for the co-chemotherapy of head and neck carcinomas. J Mater Chem B 2023; 11:325-334. [PMID: 36484416 DOI: 10.1039/d2tb01930b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Head and neck squamous cell carcinomas (HNSCCs) are a complex group of malignancies that affect different body sites pertaining to the oral cavity, pharynx and larynx. Current chemotherapy relies on platinum complexes, the major exponent being cisplatin, which exert severe side effects that can negatively affect prognosis. For this reason, other metal complexes with less severe side effects are being investigated as alternatives or adjuvants to platinum complexes. In this context, exploiting (supra)additive effects by the concurrent administration of cisplatin and emerging metal complexes is a promising research strategy that may lead to effective cancer management with reduced adverse reactions. Here, the combined action of cisplatin and a ruthenium(II) η6-arene compound (RuCy), both as free molecules and loaded into hybrid nano-architectures (NAs), has been assessed on HPV-negative HNSCC models of increasing complexity: 2D cell cultures, 3D multicellular tumor spheroids, and chorioallantoic membranes (CAMs). Two new NAs have been established to explore all the delivery combinations and compare their ability to enhance the efficacy of cisplatin in the treatment of HNSCCs. A significant supra-additive effect has been observed in both 2D and 3D models by one combination of treatments, suggesting that cisplatin is particularly effective when loaded on NAs, whereas RuCy performs better when administered as a free compound. Overall, this work paves the way for the establishment of the next co-chemotherapeutic approaches for the management of HNSCCs.
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Affiliation(s)
- Melissa Santi
- NEST Istituto Nanoscienze-CNR and Scuola Normale Superiore, 56127, Pisa, Italy
| | - Valentina Frusca
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Maria Laura Ermini
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Ana Katrina Mapanao
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Patrizia Sarogni
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy
| | - Alessandra Gonnelli
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy.,Radiation Oncology Unit, Pisa University Hospital, Via Roma 67, Pisa, Italy
| | - Noemi Giannini
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy.,Radiation Oncology Unit, Pisa University Hospital, Via Roma 67, Pisa, Italy
| | - Agata Zamborlin
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy.,NEST-Scuola Normale Superiore, Piazza San Silvestro 12, 56127 Pisa, Italy
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Valerio Voliani
- Center for Nanotechnology Innovation@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, 56127, Pisa, Italy.,Department of Pharmacy, University of Genoa, Viale Cembrano, 4-16148, Genoa, Italy.
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Benetti S, Dalla Pozza M, Biancalana L, Zacchini S, Gasser G, Marchetti F. The Beneficial Effect of Cyclohexyl Substituent on the In Vitro Anticancer Activity of Diiron Vinyliminium Complexes. Dalton Trans 2023; 52:5724-5741. [PMID: 37038773 DOI: 10.1039/d3dt00186e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Novel diiron vinyliminium complexes, [Fe2Cp2(CO)(μ-CO){μ-C(R3)=CHC=NMe(R2)}]CF3SO3 (2a-f; R2 = 4-C6H4OMe, Cy or Me; R3 = Cy, CH2Cy or 4-C6H4OMe; Cy = cyclohexyl, Cp = η5-C5H5), were synthesized by alkyne insertion reaction...
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Affiliation(s)
- Sara Benetti
- University of Pisa, Dipartimento di Chimica e Chimica Industriale, 56124 Pisa, Italy.
| | - Maria Dalla Pozza
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health, Paris, France.
| | - Lorenzo Biancalana
- University of Pisa, Dipartimento di Chimica e Chimica Industriale, 56124 Pisa, Italy.
| | - Stefano Zacchini
- University of Bologna, Dipartimento di Chimica Industriale "Toso Montanari", 40136 Bologna, Italy
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health, Paris, France.
| | - Fabio Marchetti
- University of Pisa, Dipartimento di Chimica e Chimica Industriale, 56124 Pisa, Italy.
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25
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Colaiezzi R, Saviozzi C, Di Nicola N, Zacchini S, Pampaloni G, Crucianelli M, Marchetti F, Di Giuseppe A, Biancalana L. Ruthenium(II) Arene Complexes Bearing Simple Dioxime Ligands: Effective Catalysts for the One-Pot Transfer Hydrogenation/N-Methylation of Nitroarenes with Methanol. Catal Sci Technol 2023. [DOI: 10.1039/d3cy00218g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
The reductive N-monomethylation of nitroarenes is a reaction of wide scientific interest that can be conveniently realized in one-pot using methanol as both the reductant (H2 donor), alkylating agent (CH3+...
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26
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Schoch S, Bresciani G, Saviozzi C, Funaioli T, Bortoluzzi M, Pampaloni G, Marchetti F. Iminium Substituent Directs Cyanide and Hydride Additions to Triiron Vinyliminium Complexes. NEW J CHEM 2023. [DOI: 10.1039/d2nj05810c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
The reactivity of diiron bis-cyclopentadienyl cationic complexes containing a vinyliminium ligand coordinated to a diiron scaffold and decorated with a ferrocenyl group, [1a-g]CF3SO3, was investigated towards NBu4CN (in CH2Cl2) and...
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Pollastrini M, Pasquinelli L, Górecki M, Balzano F, Cupellini L, Lipparini F, Uccello Barretta G, Marchetti F, Pescitelli G, Angelici G. A Unique and Stable Polyproline I Helix Sorted out from Conformational Equilibrium by Solvent Polarity. J Org Chem 2022; 87:13715-13725. [PMID: 36242553 PMCID: PMC9639007 DOI: 10.1021/acs.joc.2c01377] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Polyproline I helical structures are often considered as the hidden face of their most famous geminal sibling, Polyproline II, as PPI is generally spotted only within a conformational equilibrium. We designed and synthesized a stable Polyproline I structure exploiting the striking tendency of (S)-indoline-2-carboxylic acid to drive the peptide bond conformation toward the cis amide isomer, when dissolved in polar solvents. The cooperative effect of only four amino acidic units is sufficient to form a preferential structure in solution. We shed light on this rare secondary structure with a thorough analysis of the spectroscopic and chiroptical properties of the tetramer, supported by X-ray crystallography and computational studies.
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Affiliation(s)
- Matteo Pollastrini
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Luca Pasquinelli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Marcin Górecki
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy,Institute
of Organic Chemistry, Polish Academy of
Sciences, ul. Kasprzaka
44/52, Warsaw 01-224, Poland
| | - Federica Balzano
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Lorenzo Cupellini
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Filippo Lipparini
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Gloria Uccello Barretta
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Fabio Marchetti
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy
| | - Gennaro Pescitelli
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy,
| | - Gaetano Angelici
- Dipartimento
di Chimica e Chimica Industriale, Università
di Pisa, Via G. Moruzzi 13, Pisa 56124, Italy,
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Biancalana L, Fiaschi M, Zacchini S, Marchetti F. Formation and structural characterization of a diiron aminoalkylidene complex with N-cyano substituent. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Bresciani G, Boni S, Zacchini S, Pampaloni G, Bortoluzzi M, Marchetti F. Alkyne-alkenyl coupling at a diruthenium complex. Dalton Trans 2022; 51:15703-15715. [PMID: 36177843 DOI: 10.1039/d2dt02866b] [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] [Indexed: 11/21/2022]
Abstract
Dimetallic complexes are suitable platforms for the assembly of small molecular units, and the reactivity of bridging alkenyl ligands has been widely investigated to model C-C bond forming processes. Here, we report the unusual coupling of an alkenyl ligand, bridging coordinated on a diruthenium scaffold, with a series of alkynes, revealing two possible outcomes. The diruthenium complex [Ru2Cp2(Cl)(CO)(μ-CO){μ-η1:η2-C(Ph)CH(Ph)}], 2, was prepared in two steps from [Ru2Cp2(CO)2(μ-CO){μ-η1:η2-C(Ph)CH(Ph)}]BF4, [1]BF4, in 69% yield. Then, the reaction of 2 with C2(CO2Me)2, promoted by AgCF3SO3 in dichloromethane, afforded in 51% yield the complex [Ru2Cp2(CO)2{μ-η3:η2-C(Ph)CH(Ph)C(CO2Me)C(CO2Me)}]CF3SO3, [3]CF3SO3, containing a ruthenacyclopentene-based hydrocarbyl ligand. On the other hand, 2 reacted with other alkynes and AgX salts to give the butadienyl complexes [Ru2Cp2(CO)2{μ-η3:η2-C(R)CH(R')C(Ph)C(Ph)}]X (R = R' = H, [4]BF4; R = R' = Me, [5]CF3SO3; R = R' = Ph, [6]CF3SO3; R = Ph, R' = H, [7]CF3SO3), in 42-56% yields. All products were characterized by IR and NMR spectroscopy, and by single crystal X-ray diffraction in the cases of 2, [3]CF3SO3 and [6]BF4. DFT calculations highlighted the higher stability of [4-7]+-like structures with respect to the corresponding [3]+-like isomers. It is presumable that [3]+-like isomers initially form as kinetic intermediates, then undergo H-migration which is disfavoured in the presence of carboxylato substituents on the alkyne. Such hypothesis was supported by the computational optimization of the transition states for H-migration in the cases of R = R' = H and R = R' = CO2Me.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Serena Boni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Stefano Zacchini
- University of Bologna, Department of Industrial Chemistry "Toso Montanari", Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
| | - Marco Bortoluzzi
- University of Venezia "Ca' Foscari", Department of Molecular Science and Nanosystems, Via Torino 155, I-30170 Mestre (VE), Italy.
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.
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Guo C, Cheng F, Liang G, Zhang S, Duan S, Fu Y, Marchetti F, Zhang Z, Du M. Multimodal Antibacterial Platform Constructed by the Schottky Junction of Curcumin‐Based Bio Metal–Organic Frameworks and Ti
3
C
2
T
x
MXene Nanosheets for Efficient Wound Healing. Advanced NanoBiomed Research 2022. [DOI: 10.1002/anbr.202200064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Chuanpan Guo
- College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450001 China
| | - Fang Cheng
- College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450001 China
| | - Gaolei Liang
- College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450001 China
| | - Shuai Zhang
- College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450001 China
| | - Shuxia Duan
- Henan Provincial Key Laboratory of Medical Protective Products Henan Yadu Industrial Co., Ltd. Changyuan 453400 China
| | - Yingkun Fu
- Henan Provincial Key Laboratory of Medical Protective Products Henan Yadu Industrial Co., Ltd. Changyuan 453400 China
| | - Fabio Marchetti
- School of Science and Technology Chemistry Section University of Camerino Via S. Agostino 1 62032 Camerino MC Italy
| | - Zhihong Zhang
- College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450001 China
| | - Miao Du
- College of Material and Chemical Engineering Zhengzhou University of Light Industry Zhengzhou 450001 China
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31
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Iacopini D, Vančo J, Di Pietro S, Bordoni V, Zacchini S, Marchetti F, Dvořák Z, Malina T, Biancalana L, Trávníček Z, Di Bussolo V. New glycoconjugation strategies for Ruthenium(II) arene complexes via phosphane ligands and assessment of their antiproliferative activity. Bioorg Chem 2022; 126:105901. [DOI: 10.1016/j.bioorg.2022.105901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 11/29/2022]
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32
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Farasat A, Labella L, Marchetti F, Samaritani S. Addition of aliphatic, secondary amines to coordinated isonitriles. N-acyclic carbene (NAC) platinum(II) complexes from trans-[Pt(μ-Cl)Cl(PPh3)]2. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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33
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Pagliaricci N, Pettinari R, Marchetti F, Pettinari C, Cappellacci L, Tombesi A, Cuccioloni M, Hadiji M, Dyson PJ. Potent and selective anticancer activity of half-sandwich ruthenium and osmium complexes with modified curcuminoid ligands. Dalton Trans 2022; 51:13311-13321. [PMID: 35983757 DOI: 10.1039/d2dt02328h] [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] [Indexed: 11/21/2022]
Abstract
We have recently reported a series of half-sandwich ruthenium(II) complexes with curcuminoid ligands showing excellent cytotoxic activities (particularly ionic derivatives containing PTA (PTA = 1,3,5-triaza-7-phosphaadamantane). In the present study, new members of this family of compounds have been prepared with the objective to investigate the effect of a long hydrophobic chain obtained by replacing the OH-groups, present in curcumin and bisdemethoxycurcumin, with the palmitic acid ester. We report the synthesis of ruthenium(II) and osmium(II) p-cymene derivatives containing palmitic acid curcumin ester ligands ((1E,3Z,6E)-3-hydroxy-5-oxohepta-1,3,6-triene-1,7-diyl)bis(2-methoxy-4,1-phenylene)dipalmitate (p-curcH) and ((1E,3Z,6E)-3-hydroxy-5-oxohepta-1,3,6-triene-1,7-diyl)bis(4,1-phenylene)dipalmitate (p-bdcurcH). Complexes [M(II)(cym)(p-curc)/(p-bdcurc)(Cl)] 1-4 (M = Ru or Os) are neutral, whereas [M(II)(cym)(p-curc)/(p-bdcurc)(PTA)][SO3CF3] 5-8 are salts obtained when the chloride ligand is replaced by the PTA ligand. Stability studies performed on 1-8 in DMSO-PBS under physiological conditions (pH = 7.4) indicate that the complexes remain intact. The complexes exhibit potent and selective cytotoxic activity against an ovarian carcinoma cell line and its cisplatin-resistant form (A2780 and A2780cis), and non-cancerous human embryonic kidney (HEK293T) cells. To define the structure-activity relationships (SAR), the compounds have been compared with other Ru(II) and Os(II) complexes with curcuminoid ligands previously reported. SAR data reveal that the bisdemethoxycurcumin complexes are generally more active and selective than analogous curcumin-containing complexes.
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Affiliation(s)
- Noemi Pagliaricci
- School of Pharmacy, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino MC, Italy.
| | - Riccardo Pettinari
- School of Pharmacy, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino MC, Italy.
| | - Fabio Marchetti
- School of Science and Technology, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino MC, Italy
| | - Claudio Pettinari
- School of Pharmacy, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino MC, Italy.
| | - Loredana Cappellacci
- School of Pharmacy, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino MC, Italy.
| | - Alessia Tombesi
- School of Pharmacy, University of Camerino, via Madonna delle Carceri (ChIP), 62032 Camerino MC, Italy.
| | - Massimiliano Cuccioloni
- School of Biosciences and Veterinary Medicine, University of Camerino, Via Gentile III Da Varano, 62032 Camerino MC, Italy
| | - Mouna Hadiji
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Paul J Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
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Marchetti F, Tombesi A, Di Nicola C, Pettinari R, Verdicchio F, Crispini A, Scarpelli F, Baldassarri C, Marangoni E, Hofer A, Galindo A, Petrelli R. Zinc(II) Complex with Pyrazolone-Based Hydrazones is Strongly Effective against Trypanosoma brucei Which Causes African Sleeping Sickness. Inorg Chem 2022; 61:13561-13575. [PMID: 35969809 PMCID: PMC9446893 DOI: 10.1021/acs.inorgchem.2c02201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Two pyrazolone-based hydrazones H2L′
[in general,
H2L′; in detail, H2L1 = 5-methyl-2-phenyl-4-(2-phenyl-1-(2-(4-(trifluoromethyl)phenyl)hydrazineyl)ethyl)-2,4-dihydro-3H-pyrazol-3-one, H2L2 = (Z)-5-methyl-2-phenyl-4-(2-phenyl-1-(2-(pyridin-2-yl)hydrazineyl)ethylidene)-2,4-dihydro-3H-pyrazol-3-one] were reacted with Zn(II) and Cu(II) acceptors
affording the complexes [Zn(HL1)2(MeOH)2], [Cu(HL1)2], and [M(HL2)2] (M = Cu or Zn). X-ray and DFT studies showed the free
proligands to exist in the N–H,N–H tautomeric form and
that in [Zn(HL1)2(MeOH)2], zinc is
six-coordinated by the N,O-chelated (HL1) ligand and other
two oxygen atoms of coordinated methanol molecules, while [Cu(HL1)2] adopts a square planar geometry with the two
(HL1) ligands in anti-conformation. Finally, the [M(HL2)2] complexes are octahedral with the two (HL2) ligands acting as κ-O,N,N-donors in planar conformation.
Both the proligands and metal complexes were tested against the parasite Trypanosoma brucei and Balb3T3 cells. The Zn(II)
complexes were found to be very powerful, more than the starting proligands,
while maintaining a good safety level. In detail, H2L1 and its
Zn(II) complex have high selective index (55 and >100, respectively)
against T. brucei compared to the mammalian
Balb/3T3 reference cells. These results encouraged the researchers
to investigate the mechanism of action of these compounds that have
no structural relations with the already known drugs used against T. brucei. Interestingly, the analysis of NTP and
dNTP pools in T. brucei treated by H2L1 and its Zn(II) complex showed that the drugs had a strong
impact on the CTP pools, making it likely that CTP synthetase is the
targeted enzyme. New
Zn(II) and Cu(II) complexes with pyrazolone-based hydrazone
ligands display different structural features. The Zn(II) complexes
show strong efficiency against the parasite Trypanosoma
brucei, while maintaining a good safety level. They
strongly impact the CTP pools, indicating that CTP synthetase is the
targeted enzyme.
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Affiliation(s)
- Fabio Marchetti
- Chemistry Interdisciplinary Project (CHIP), School of Science and Technology, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Alessia Tombesi
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Corrado Di Nicola
- Chemistry Interdisciplinary Project (CHIP), School of Science and Technology, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Riccardo Pettinari
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Federico Verdicchio
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Alessandra Crispini
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Francesca Scarpelli
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Cecilia Baldassarri
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Elisa Marangoni
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
| | - Anders Hofer
- Department of Medical Biochemistry and Biophysics, Umea University, 901 87 Umeå, Sweden
| | - Agustín Galindo
- Departamento de Química Inorganíca, Facultad de Química, Universidad de Sevilla, Aptdo 1203, 41071 Sevilla, Spain
| | - Riccardo Petrelli
- Chemistry Interdisciplinary Project (CHIP), School of Pharmacy, University of Camerino, via Madonna delle Carceri, 62032 Camerino, Macerata, Italy
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Cervinka J, Gobbo A, Biancalana L, Markova L, Novohradsky V, Guelfi M, Zacchini S, Kasparkova J, Brabec V, Marchetti F. Ruthenium(II)-Tris-pyrazolylmethane Complexes Inhibit Cancer Cell Growth by Disrupting Mitochondrial Calcium Homeostasis. J Med Chem 2022; 65:10567-10587. [PMID: 35913426 PMCID: PMC9376960 DOI: 10.1021/acs.jmedchem.2c00722] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
![]()
While ruthenium arene complexes have been widely investigated
for
their medicinal potential, studies on homologous compounds containing
a tridentate tris(1-pyrazolyl)methane ligand are almost absent in
the literature. Ruthenium(II) complex 1 was obtained
by a modified reported procedure; then, the reactions with a series
of organic molecules (L) in boiling alcohol afforded novel complexes 2–9 in 77–99% yields. Products 2–9 were fully structurally characterized. They are
appreciably soluble in water, where they undergo partial chloride/water
exchange. The antiproliferative activity was determined using a panel
of human cancer cell lines and a noncancerous one, evidencing promising
potency of 1, 7, and 8 and
significant selectivity toward cancer cells. The tested compounds
effectively accumulate in cancer cells, and mitochondria represent
a significant target of biological action. Most notably, data provide
convincing evidence that the mechanism of biological action is mediated
by the inhibiting of mitochondrial calcium intake.
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Affiliation(s)
- Jakub Cervinka
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61265 Brno, Czech Republic.,Faculty of Science, Department of Biochemistry, Masaryk University, Kamenice 5, CZ-62500 Brno, Czech Republic
| | - Alberto Gobbo
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy.,Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Lenka Markova
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Vojtech Novohradsky
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Massimo Guelfi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Jana Kasparkova
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61265 Brno, Czech Republic.,Faculty of Science, Department of Biophysics, Palacky University in Olomouc, Slechtitelu 27, CZ-78371 Olomouc, Czech Republic
| | - Viktor Brabec
- Czech Academy of Sciences, Institute of Biophysics, Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
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36
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Bresciani G, Bortoluzzi M, Marchetti F, Pampaloni G. Titanium(IV) Alkoxide‐Carbamate Complexes: Synthesis and Catalytic Potential in H2O2‐Oxidation of Organic Sulfides. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200402] [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: 11/06/2022]
Affiliation(s)
- Giulio Bresciani
- University of Pisa Department of Chemistry and Industrial Chemistry Via Giuseppe Moruzzi, 13 56124 Pisa ITALY
| | - Marco Bortoluzzi
- Ca' Foscari University of Venice: Universita Ca' Foscari Department of Molecular Science and Nanosystems ITALY
| | - Fabio Marchetti
- University of Pisa: Universita degli Studi di Pisa Department of Chemistry and Industrial Chemistry ITALY
| | - Guido Pampaloni
- University of Pisa: Universita degli Studi di Pisa Department of Chemistry and Industrial Chemistry ITALY
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Policastro D, Giorno E, Scarpelli F, Godbert N, Ricciardi L, Crispini A, Candreva A, Marchetti F, Xhafa S, De Rose R, Nucera A, Barberi RC, Castriota M, De Bartolo L, Aiello I. New Zinc-Based Active Chitosan Films: Physicochemical Characterization, Antioxidant, and Antimicrobial Properties. Front Chem 2022; 10:884059. [PMID: 35711963 PMCID: PMC9194505 DOI: 10.3389/fchem.2022.884059] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/13/2022] [Indexed: 11/13/2022] Open
Abstract
The improvement of the antioxidant and antimicrobial activities of chitosan (CS) films can be realized by incorporating transition metal complexes as active components. In this context, bioactive films were prepared by embedding a newly synthesized acylpyrazolonate Zn(II) complex, [Zn(QPhtBu)2(MeOH)2], into the eco-friendly biopolymer CS matrix. Homogeneous, amorphous, flexible, and transparent CS@Znn films were obtained through the solvent casting method in dilute acidic solution, using different weight ratios of the Zn(II) complex to CS and characterized by powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR), Raman, and scanning electron microscopy (SEM) techniques. The X-ray single-crystal analysis of [Zn(QPhtBu)2(MeOH)2] and the evaluation of its intermolecular interactions with a protonated glucosamine fragment through hydrogen bond propensity (HBP) calculations are reported. The effects of the different contents of the [Zn(QPhtBu)2(MeOH)2] complex on the CS biological proprieties have been evaluated, proving that the new CS@Znn films show an improved antioxidant activity, tested according to the DPPH method, with respect to pure CS, related to the concentration of the incorporated Zn(II) complex. Finally, the CS@Znn films were tried out as antimicrobial agents, showing an increase in antimicrobial activity against Gram-positive bacteria (Staphylococcus aureus) with respect to pure CS, when detected by the agar disk-diffusion method.
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Affiliation(s)
- Debora Policastro
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy
| | - Eugenia Giorno
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy
| | - Francesca Scarpelli
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy
| | - Nicolas Godbert
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy
| | - Loredana Ricciardi
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy.,CNR NANOTEC- Institute of Nanotechnology U.O.S. Cosenza, Rende, Italy
| | - Alessandra Crispini
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy
| | - Angela Candreva
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy
| | - Fabio Marchetti
- School of Science and Technology Chemistry Section, University of Camerino, Macerata, Italy
| | - Sonila Xhafa
- School of Science and Technology Chemistry Section, University of Camerino, Macerata, Italy
| | - Renata De Rose
- LAB CF-INABEC Department of Chemistry and Chemical Technologies, University of Calabria, Rende, Italy
| | - Antonello Nucera
- Department of Physics, University of Calabria Ponte Bucci, Rende, Italy
| | - Riccardo C Barberi
- CNR NANOTEC- Institute of Nanotechnology U.O.S. Cosenza, Rende, Italy.,Department of Physics, University of Calabria Ponte Bucci, Rende, Italy
| | - Marco Castriota
- CNR NANOTEC- Institute of Nanotechnology U.O.S. Cosenza, Rende, Italy.,Department of Physics, University of Calabria Ponte Bucci, Rende, Italy
| | - Loredana De Bartolo
- Institute on Membrane Technology, National Research Council of Italy, C/o University of Calabria, Rende, Italy
| | - Iolinda Aiello
- MAT-INLAB (Laboratorio di Materiali Molecolari Inorganici) and LASCAMM - CR INSTM, Unità INSTM of Calabria, Department of Chemistry and Chemical Technologies, University of Calabria Ponte Bucci, Rende, Italy.,CNR NANOTEC- Institute of Nanotechnology U.O.S. Cosenza, Rende, Italy
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Bresciani G, Zacchini S, Pampaloni G, Bortoluzzi M, Marchetti F. η 6-Coordinated ruthenabenzenes from three-component assembly on a diruthenium μ-allenyl scaffold. Dalton Trans 2022; 51:8390-8400. [PMID: 35587270 DOI: 10.1039/d2dt01071b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The room temperature reactions with internal alkynes, RCCR, of the μ-allenyl acetonitrile complex [Ru2Cp2(CO)2(NCMe){μ-η1:η2-C1HC2C3Me2}]BF4 (1-NCMe), freshly prepared from the tricarbonyl precursor [Ru2Cp2(CO)3{μ-η1:η2-C1HC2C3Me2}]BF4, 1, proceeded with alkyne insertion into ruthenium-allenyl bond and allenyl-CO coupling, affording compounds [Ru2Cp2(CO)2{μ-η2:η5-C(R)C(R)C1HC2(C3MeCH2)C(OH)}]BF4 (R = Ph, 2; R = CO2Me, 3; R = CO2Et, 4) in 83-94% yields. Deprotonation of 2-4 by triethylamine gave [Ru2Cp2(CO)2{μ-η2:η5-C(R)C(R)CHC(CMeCH2)C(O)}] (R = Ph, 5; R = CO2Me, 6; R = CO2Et, 7) in 75-88% yields, and 2-4 could be recovered upon HBF4·Et2O addition to 5-7. All the products, 2-7, were fully characterized by elemental analysis, IR and multinuclear NMR spectroscopy. The structure of 2 was ascertained by single crystal X-ray diffraction and investigated by DFT calculations, revealing a six-membered ruthenacycle with Shannon aromaticity index in line with related compounds. The formation of ruthenium-coordinated ruthenabenzenes from a preexistent diruthenium scaffold is a versatile but underdeveloped approach exploiting cooperative effects typical of a dimetallic core.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy. .,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Stefano Zacchini
- University of Bologna, Department of Industrial Chemistry "Toso Montanari", Viale Risorgimento 4, I-40136 Bologna, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy. .,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Marco Bortoluzzi
- University of Venezia "Ca' Foscari", Department of Molecular Science and Nanosystems, Via Torino 155, I-30170 Mestre (VE), Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy. .,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
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39
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Pereira SAP, Baptista L AC, Biancalana L, Marchetti F, Dyson PJ, Saraiva MLMFS. Automated approach for the evaluation of glutathione-S-transferase P1-1 inhibition by organometallic anticancer compounds. J Enzyme Inhib Med Chem 2022; 37:1527-1536. [PMID: 35635138 PMCID: PMC9176637 DOI: 10.1080/14756366.2022.2073443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Sarah A. P. Pereira
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - A. Catarina Baptista L
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Lorenzo Biancalana
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - M. Lúcia M. F. S. Saraiva
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
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40
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Abstract
The diiron compounds [Fe2Cp2(CO)2(μ-CO)(μ-CSEt)]CF3SO3, [1]CF3SO3, K[Fe2Cp2(CO)3(CNCH2CO2)], K[2], [Fe2Cp2(CO)2(μ-CO)(μ-CNMe2)]NO3, [3]NO3, [Fe2Cp2(CO)2(PTA){μ-CNMe(Xyl)}]CF3SO3, [4]CF3SO3, and [Fe2Cp2(CO)(μ-CO){μ-η:1η3-C(4-C6H4CO2H)CHCNMe2}]CF3SO3, [5]CF3SO3, containing a bridging carbyne, isocyanoacetate, or vinyliminium ligand, were investigated for their photoinduced cytotoxicity. Specifically, the novel water-soluble compounds K[2], [3]NO3, and [4]CF3SO3 were synthesized and characterized by elemental analysis and IR and multinuclear NMR spectroscopy. Stereochemical aspects concerning [4]CF3SO3 were elucidated by 1H NOESY NMR and single-crystal X-ray diffraction. Cell proliferation studies on human skin cancer (A431) and nontumoral embryonic kidney (HEK293) cells, with and without a 10-min exposure to low-power UV light (350 nm), highlighted the performance of the aminocarbyne [3]NO3, nicknamed NIRAC (Nitrate-Iron-Aminocarbyne), which is substantially nontoxic in the dark but shows a marked photoinduced cytotoxicity. Spectroscopic (IR, UV-vis, NMR) measurements and the myoglobin assay indicated that the release of one carbon monoxide ligand represents the first step of the photoactivation process of NIRAC, followed by an extensive disassembly of the organometallic scaffold.
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Affiliation(s)
- Lorenzo Biancalana
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy,
| | - Manja Kubeil
- Institute
of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Silvia Schoch
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Stefano Zacchini
- Department
of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, 40136 Bologna, Italy
| | - Fabio Marchetti
- Department
of Chemistry and Industrial Chemistry, University
of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
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41
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Bresciani G, Zacchini S, Pampaloni G, Marchetti F. Carbon–Carbon Bond Coupling of Vinyl Molecules with an Allenyl Ligand at a Diruthenium Complex. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00060] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Giulio Bresciani
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, Pisa I-56124, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, Bologna I-40136, Italy
| | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, Pisa I-56124, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, Pisa I-56124, Italy
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42
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Schoch S, Iacopini D, Dalla Pozza M, Di Pietro S, Degano I, Gasser G, Di Bussolo V, Marchetti F. Tethering Carbohydrates to the Vinyliminium Ligand of Antiproliferative Organometallic Diiron Complexes. Organometallics 2022; 41:514-526. [PMID: 35308582 PMCID: PMC8924928 DOI: 10.1021/acs.organomet.1c00519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Indexed: 12/23/2022]
Affiliation(s)
- Silvia Schoch
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
| | - Dalila Iacopini
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
| | - Maria Dalla Pozza
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France
| | | | - Ilaria Degano
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, 75005 Paris, France
| | | | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, 56124 Pisa, Italy
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43
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Effendy, Marchetti F, Hart RD, Pettinari C, Skelton BW, Tombesi A, White AH. Synthesis and structural characterisation of four 1:1:2 ionic/mononuclear complexes of Ag(I) and Cu(I) salts with tertiary organophosphine and 1,2-diamines. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Biancalana L, Fiaschi M, Ciancaleoni G, Pampaloni G, Zanotti V, Zacchini S, Marchetti F. A Comparative Structural and Spectroscopic Study of Diiron and Diruthenium Isocyanide and Aminocarbyne Complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Effendy, Healy PC, Marchetti F, Pettinari C, Pettinari R, Tombesi A, Skelton BW, White AH. Synthesis and structural characterization of some 1:1 and 1:2 adducts of silver(I) salts with hindered Pmes3, PPhmes2 and PPh2mes bases (Ph = phenyl, mes = 2,4,6-trimethylpheny1)). Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Hyeraci M, Agnarelli L, Labella L, Marchetti F, Di Paolo ML, Samaritani S, Dalla Via L. trans-Dichloro(triphenylarsino)(N,N-dialkylamino)platinum(II) Complexes: In Search of New Scaffolds to Circumvent Cisplatin Resistance. Molecules 2022; 27:molecules27030644. [PMID: 35163916 PMCID: PMC8838190 DOI: 10.3390/molecules27030644] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 02/01/2023] Open
Abstract
The high incidence of the resistance phenomenon represents one of the most important limitations to the clinical usefulness of cisplatin as an anticancer drug. Notwithstanding the considerable efforts to solve this problem, the circumvention of cisplatin resistance remains a challenge in the treatment of cancer. In this work, the synthesis and characterization of two trans-dichloro(triphenylarsino)(N,N-dialkylamino)platinum(II) complexes (1 and 2) were described. The trypan blue exclusion assay demonstrated an interesting antiproliferative effect for complex 1 in ovarian carcinoma-resistant cells, A2780cis. Quantitative analysis performed by ICP-AES demonstrated a scarce ability to platinate DNA, and a significant intracellular accumulation. The investigation of the mechanism of action highlighted the ability of 1 to inhibit the relaxation of supercoiled plasmid DNA mediated by topoisomerase II and to stabilize the cleavable complex. Cytofluorimetric analyses indicated the activation of the apoptotic pathway and the mitochondrial membrane depolarization. Therefore, topoisomerase II and mitochondria could represent possible intracellular targets. The biological properties of 1 and 2 were compared to those of the related trans-dichloro(triphenylphosphino)(N,N-dialkylamino)platinum(II) complexes in order to draw structure–activity relationships useful to face the resistance phenotype.
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Affiliation(s)
- Mariafrancesca Hyeraci
- Department of Pharmaceutical and Pharmacological Sciences, Università degli Studi di Padova, Via F. Marzolo 5, 35131 Padova, Italy;
| | - Laura Agnarelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy; (L.A.); (L.L.); (F.M.); (S.S.)
| | - Luca Labella
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy; (L.A.); (L.L.); (F.M.); (S.S.)
- CISUP—Center for the Integration of Scientific Instruments, University of Pisa, 56126 Pisa, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy; (L.A.); (L.L.); (F.M.); (S.S.)
| | - Maria Luisa Di Paolo
- Department of Molecular Medicine, Università degli Studi di Padova, Via G. Colombo 3, 35131 Padova, Italy;
| | - Simona Samaritani
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy; (L.A.); (L.L.); (F.M.); (S.S.)
- CISUP—Center for the Integration of Scientific Instruments, University of Pisa, 56126 Pisa, Italy
| | - Lisa Dalla Via
- Department of Pharmaceutical and Pharmacological Sciences, Università degli Studi di Padova, Via F. Marzolo 5, 35131 Padova, Italy;
- Correspondence: ; Tel.: +39-049-8275712
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Bresciani G, Schoch S, Biancalana L, Zacchini S, Bortoluzzi M, Pampaloni G, Marchetti F. Cyanide-alkene competition in a diiron complex and isolation of a multisite (cyano)alkylidene-alkene species. Dalton Trans 2022; 51:1936-1945. [PMID: 35022627 DOI: 10.1039/d1dt03781a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The μ-(amino)alkylidyne complex [Fe2Cp2(CO)2(μ-CO){μ-CNMe(CH2CHCH2)}]CF3SO3, [1]CF3SO3, reacted with NBu4CN in dichloromethane affording the μ-(cyano)(amino)alkylidene [Fe2Cp2(CO)2(μ-CO){μ-C(CN)N(Me)(CH2CHCH2)}], 2, in 91% yield. Decarbonylation of 2 by using Me3NO in acetone at room temperature yielded [Fe2Cp2(CO)(μ-CO){μ-κ3C-C(CN)N(Me)(CH2CHCH2)}], 3, containing a multidentate alkylidene-alkene ligand occupying both a bridging site and a terminal site, in admixture with the μ-(amino)alkylidyne cyanide product [Fe2Cp2(CN)(CO)(μ-CO){μ-CN(Me)(CH2CHCH2)}], 4. The reaction of the μ-(amino)alkylidyne imine complex [Fe2Cp2(CO)(μ-CO)(NHCPh2){μ-CN(Me)(CH2CHCH2)}]CF3SO3, [7]CF3SO3, with NBu4CN gave 3 with an optimized yield of 75% via imine elimination. According to DFT calculations, 3 is less stable than its geometric isomer 4 by 13.4 kcal mol-1 and quantitative conversion to 4 was achieved by refluxing a THF solution of 3 for 2 hours. No replacement of alkene coordination occurred upon treating 3 with CO or PPh3. The previously unknown compounds 2, 3, 4 and [7]CF3SO3 were fully characterized by analytical and spectroscopic techniques and the structure of 3 was elucidated by single crystal X-ray diffraction.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy.
| | - Silvia Schoch
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy.
| | - Lorenzo Biancalana
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy.
| | - Stefano Zacchini
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy. .,University of Bologna, Department of Industrial Chemistry "Toso Montanari", Viale Risorgimento 4, I-40136 Bologna, Italy
| | - Marco Bortoluzzi
- CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy. .,University of Venezia "Ca' Foscari", Department of Molecular Science and Nanosystems, Via Torino 155, I-30170 Mestre, VE, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy.
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy.
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48
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Marchetti F, Pettinari R, Verdicchio F, Tombesi A, Scuri S, Xhafa S, Olivieri L, Pettinari C, Choquesillo-Lazarte D, García-García A, Rodríguez Diéguez A, Galindo A. Role of hydrazone substituents in determining the nuclearity and antibacterial activity of Zn(II) complexes with pyrazolone-based hydrazones. Dalton Trans 2022; 51:14165-14181. [DOI: 10.1039/d2dt02430f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrazones and their metal derivatives are very important compounds in medicinal chemistry due to their reported variety of biological activities, such as antibacterial, antifungal and anticancer action. Five hydrazone-pyrazolone ligands...
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49
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Ciancaleoni G, Marchetti F, Santi C, Merlino O, Zacchini S. Assessing the effects of covalent, dative and halogen bonds on the electronic structure of selenoamides. NEW J CHEM 2022. [DOI: 10.1039/d2nj01421a] [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] [Indexed: 11/21/2022]
Abstract
The C–NMe2 bond rotation of a selenoamide is proposed as an experimental probe to compare different chemical interactions.
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Affiliation(s)
- Gianluca Ciancaleoni
- Dipartimento di Chimica e Chimica Industriale, Università degli studi di Pisa, via Giuseppe Moruzzi 13, 56124, Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale, Università degli studi di Pisa, via Giuseppe Moruzzi 13, 56124, Italy
| | - Claudio Santi
- Dipartimento di Scienze Farmaceutiche, Università degli studi di Perugia, via del Liceo, 06132, Perugia, Italy
| | - Orsola Merlino
- Dipartimento di Scienze Farmaceutiche, Università degli studi di Perugia, via del Liceo, 06132, Perugia, Italy
| | - Stefano Zacchini
- Dipartimento di Chimica Fisica ed Inorganica, Università di Bologna, viale Risorgimento 4, 40136 Bologna, Italy
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50
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Effendy, Marchetti F, Di Nicola C, Pettinari C, Pettinari R, Skelton BW, Tombesi A, White AH. Synthesis and structural characterisation of some 1:1:2 complexes of silver(I) compounds with triphenylpnictides and “ethylenediamine”, [(Ph3E)(N-en)Ag(N-en-N')2Ag(N-en)(EPh3)]2+(X-)2. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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