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Di Maria S, Passannanti R, Poggialini F, Vagaggini C, Serafinelli A, Bianchi E, Governa P, Botta L, Maga G, Crespan E, Manetti F, Dreassi E, Musumeci F, Carbone A, Schenone S. Applying molecular hybridization to design a new class of pyrazolo[3,4-d]pyrimidines as Src inhibitors active in hepatocellular carcinoma. Eur J Med Chem 2024; 280:116929. [PMID: 39406114 DOI: 10.1016/j.ejmech.2024.116929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 09/10/2024] [Accepted: 09/29/2024] [Indexed: 11/25/2024]
Abstract
Hepatocellular carcinoma (HCC) is the most common type of liver solid tumor and the second leading cause of cancer-related deaths worldwide. Although new treatment options have been recently approved, the development of tumor resistance and the poor prognosis for advanced HCC make the current standard of care unsatisfying. In this scenario, the non-receptor tyrosine kinase (TK) c-Src emerged as a promising target for developing new anti-HCC agents. Our group reported a large library of pyrazolo[3,4-d]pyrimidines active as potent c-Src inhibitors. Starting from these data, we applied a molecular hybridization approach to combine the in-house pyrazolo[3,4-d]pyrimidine SI192 with the approved TK inhibitor (TKI) dasatinib, with the aim of identifying a new generation of Src inhibitors. Enzymatic results prompted us to design second-generation compounds with a better binding profile based on a hit optimization protocol comprised of molecular modeling and on-paper rational design. This investigation led to the identification of a few nanomolar Src inhibitors active toward two HCC cell lines (HepG2 and HUH-7) selected according to their high and low c-Src expression, respectively. In particular, 7e showed an IC50 value of 0.7 nM toward Src and a relevant antiproliferative efficacy on HepG2 cells after 72h (IC50 = 2.47 μM). Furthermore, 7e exhibited a cytotoxic profile better than dasatinib. The ADME profile suggested that 7e deserves further investigation as a promising TKI in cancer therapies. Finally, 7e's ability to inhibit HepG2 cell proliferation, elicit an irreversible cytotoxic effect, arrest cellular migration, and induce apoptotic-mediated cell death was assessed.
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Mancin E, Capecchi E, Botta L, Bizzarri BM. Multicomponent Synthesis of C(8)-Substituted Purine Building Blocks of Peptide Nucleic Acids from Prebiotic Compounds. ChemistryOpen 2024; 13:e202400265. [PMID: 39417746 DOI: 10.1002/open.202400265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Indexed: 10/19/2024] Open
Abstract
We have explored the reaction of a three-components mixture of aminomalononitrile, urea and α-amino acid methyl esters for the multicomponent synthesis substituted purines resembling PNA's building blocks. 2,6-diamino-purines, 6-amino-3,9-dihydro-2H-purin-2-one (iso-guanines), and 3,9-dihydro-6H-purin-6-one derivatives, selectively decorated at C(8)-position of the purine ring with different amino acid residues, were obtained from acceptable to good yields. The regio-selectivity of the transformation was controlled by the use of urea in the ternary mixture and by the annulation agent involved in the ring-closure of amino-imidazole carbonitrile intermediates. Solvent free conditions, microwave irradiation and simple one-carbon containing reagents further satisfied the major requirement of atom economy and sustainable chemistry. Due to the prebiotic nature of the three-components mixture and of annulation agents, it also embodies the possibility for the synthesis of novel PNAs bearing purine nucleobases decorated at C(8)-position of the imidazole ring as alternative RNA analogues in molecular evolution.
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De Marchi E, Filippi S, Cesarini S, Di Maio B, Bizzarri BM, Saladino R, Botta L. Modulation of the Antimelanoma Activity Imparted to Artemisinin Hybrids by the Monoterpene Counterpart. Molecules 2024; 29:3421. [PMID: 39064999 PMCID: PMC11279807 DOI: 10.3390/molecules29143421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
Molecular hybridization is a widely used strategy in drug discovery and development processes that consists of the combination of two bioactive compounds toward a novel entity. In the current study, two libraries of hybrid derivatives coming from the linkage of sesquiterpene counterparts dihydroartemisinin and artesunic acid, with a series of monoterpenes, were synthesized and evaluated by cell viability assay on primary and metastatic melanoma cell lines. Almost all the obtained compounds showed micromolar antimelanoma activity and selectivity toward the metastatic form of this cancer. Four hybrid derivatives containing perillyl alcohol, citronellol, and nerol as monoterpene counterpart emerged as the best compounds of the series, with nerol being active in combination with both sesquiterpenes, dihydroartemisinin and artesunic acid. Preliminary studies on the mechanism of action have shown the dependence of the pharmacological activity of newly synthesized hybrids on the formation of carbon- and oxygen-centered radical species. This study demonstrated the positive modulation of the pharmacodynamic effect of artemisinin semisynthetic derivatives dihydroartemisinin and artesunic acid due to the hybridization with monoterpene counterparts.
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Guzzinati S, Toffolutti F, Francisci S, De Paoli A, Giudici F, De Angelis R, Demuru E, Botta L, Tavilla A, Gatta G, Capocaccia R, Zorzi M, Caldarella A, Bidoli E, Falcini F, Bruni R, Migliore E, Puppo A, Ferrante M, Gasparotti C, Gambino ML, Carrozzi G, Bianconi F, Musolino A, Cavallo R, Mazzucco W, Fusco M, Ballotari P, Sampietro G, Ferretti S, Mangone L, Mantovani W, Mian M, Cascone G, Manzoni F, Galasso R, Piras D, Pesce MT, Bella F, Seghini P, Fanetti AC, Pinna P, Serraino D, Rossi S, Dal Maso L. Patients with cancer who will be cured and projections of complete prevalence in Italy from 2018 to 2030. ESMO Open 2024; 9:103635. [PMID: 39043021 PMCID: PMC11321301 DOI: 10.1016/j.esmoop.2024.103635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/29/2024] [Accepted: 06/10/2024] [Indexed: 07/25/2024] Open
Abstract
BACKGROUND The number and projections of cancer survivors are necessary to meet the healthcare needs of patients, while data on cure prevalence, that is, the percentage of patients who will not die of cancer by time since diagnosis, are lacking. MATERIALS AND METHODS Data from Italian cancer registries (duration of registration ranged from 9 to 40 years, with a median of 22 years) covering 47% of the population were used to calculate the limited-duration prevalence, the complete prevalence in 2018, projections to 2030, and cure prevalence, by cancer type, sex, age, and time since diagnosis. RESULTS A total of 3 347 809 people were alive in Italy in 2018 after a cancer diagnosis, corresponding to 5.6% of the resident population. They will increase by 1.5% per year to 4 012 376 in 2030, corresponding to 6.9% of the resident population, 7.6% of women and ∼22% after age 75 years. In 2030, more than one-half of all prevalent cases (2 million) will have been diagnosed by ≥10 years. Those with breast (1.05 million), prostate (0.56 million), or colorectal cancers (0.47 million) will be 52% of all prevalent patients. Cure prevalence was 86% for all patients alive in 2018 (87% for patients with breast cancer and 99% for patients with thyroid or testicular cancer), increasing with time since diagnosis to 93% for patients alive after 5 years and 96% after 10 years. Among patients who survived at least 5 years, the excess risk of death (1 - cure prevalence) was <5% for patients with most cancer types except for those with cancers of the breast (8.3%), lung (11.1%), kidney (13.2%), and bladder (15.5%). CONCLUSIONS Study findings encourage the implementation of evidence-based policies aimed at improving long-term clinical follow-up and rehabilitation of people living after cancer diagnosis throughout the course of the disease. Updated estimates of complete prevalence are important to enhance data-driven cancer control planning.
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Ardino C, Sannio F, Poli G, Galati S, Dreassi E, Botta L, Docquier JD, D'Agostino I. An update on antibacterial AlkylGuanidino Ureas: Design of new derivatives, synergism with colistin and data analysis of the whole library. Eur J Med Chem 2024; 270:116362. [PMID: 38574637 DOI: 10.1016/j.ejmech.2024.116362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/06/2024]
Abstract
Antimicrobial resistance (AMR) represents one of the most challenging global Public Health issues, with an alarmingly increasing rate of attributable mortality. This scenario highlights the urgent need for innovative medicinal strategies showing activity on resistant isolates (especially, carbapenem-resistant Gram-negative bacteria, methicillin-resistant S. aureus, and vancomycin-resistant enterococci) yielding new approaches for the treatment of bacterial infections. We previously reported AlkylGuanidino Ureas (AGUs) with broad-spectrum antibacterial activity and a putative membrane-based mechanism of action. Herein, new tetra- and mono-guanidino derivatives were designed and synthesized to expand the structure-activity relationships (SARs) and, thereby, tested on the same panel of Gram-positive and Gram-negative bacteria. The membrane-active mechanism of selected compounds was then investigated through molecular dynamics (MD) on simulated bacterial membranes. In the end, the newly synthesized series, along with the whole library of compounds (more than 70) developed in the last decade, was tested in combination with subinhibitory concentrations of the last resort antibiotic colistin to assess putative synergistic or additive effects. Moreover, all the AGUs were subjected to cheminformatic and machine learning analyses to gain a deeper knowledge of the key features required for bioactivity.
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Cesarini S, Vicenti I, Poggialini F, Filippi S, Mancin E, Fiaschi L, De Marchi E, Giammarino F, Vagaggini C, Bizzarri BM, Saladino R, Dreassi E, Zazzi M, Botta L. Serendipitous Identification of Azine Anticancer Agents Using a Privileged Scaffold Morphing Strategy. Molecules 2024; 29:1452. [PMID: 38611732 PMCID: PMC11013010 DOI: 10.3390/molecules29071452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
The use of privileged scaffolds as a starting point for the construction of libraries of bioactive compounds is a widely used strategy in drug discovery and development. Scaffold decoration, morphing and hopping are additional techniques that enable the modification of the chosen privileged framework and better explore the chemical space around it. In this study, two series of highly functionalized pyrimidine and pyridine derivatives were synthesized using a scaffold morphing approach consisting of triazine compounds obtained previously as antiviral agents. Newly synthesized azines were evaluated against lymphoma, hepatocarcinoma, and colon epithelial carcinoma cells, showing in five cases acceptable to good anticancer activity associated with low cytotoxicity on healthy fibroblasts. Finally, ADME in vitro studies were conducted on the best derivatives of the two series showing good passive permeability and resistance to metabolic degradation.
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Di Martino J, Arcieri M, Madeddu F, Pieroni M, Carotenuto G, Bottoni P, Botta L, Castrignanò T, Gabellone S, Saladino R. Molecular Dynamics Investigations of Human DNA-Topoisomerase I Interacting with Novel Dewar Valence Photo-Adducts: Insights into Inhibitory Activity. Int J Mol Sci 2023; 25:234. [PMID: 38203410 PMCID: PMC10778928 DOI: 10.3390/ijms25010234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Chronic exposure to ultraviolet (UV) radiation is known to induce the formation of DNA photo-adducts, including cyclobutane pyrimidine dimers (CPDs) and Dewar valence derivatives (DVs). While CPDs usually occur at higher frequency than DVs, recent studies have shown that the latter display superior selectivity and significant stability in interaction with the human DNA/topoisomerase 1 complex (TOP1). With the aim to deeply investigate the mechanism of interaction of DVs with TOP1, we report here four all-atom molecular dynamic simulations spanning one microsecond. These simulations are focused on the stability and conformational changes of two DNA/TOP1-DV complexes in solution, the data being compared with the biomimetic thymine dimer counterparts. Results from root-mean-square deviation (RMSD) and root-mean-square fluctuation (RMSF) analyses unequivocally confirmed increased stability of the DNA/TOP1-DV complexes throughout the simulation duration. Detailed interaction analyses, uncovering the presence of salt bridges, hydrogen bonds, water-mediated interactions, and hydrophobic interactions, as well as pinpointing the non-covalent interactions within the complexes, enabled the identification of specific TOP1 residues involved in the interactions over time and suggested a potential TOP1 inhibition mechanism in action.
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Zippilli C, Filippi S, Cesarini S, Bizzarri BM, Conigliaro P, De Marchi E, Botta L, Saladino R. Synthesis of Artesunic Acid-Coumarin Hybrids as Potential Antimelanoma Agents. ACS Med Chem Lett 2023; 14:599-605. [PMID: 37197457 PMCID: PMC10184312 DOI: 10.1021/acsmedchemlett.3c00019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/20/2023] [Indexed: 05/19/2023] Open
Abstract
Current therapy against melanoma relies on surgical treatment or, in alternative, on conventional drug therapy. Often these therapeutic agents are ineffective due to the development of resistance phenomena. For this purpose, chemical hybridization emerged as an effective strategy to overcome the development of drug resistance. In this study, a series of molecular hybrids were synthesized combining the sesquiterpene artesunic acid with a panel of phytochemical coumarins. Cytotoxicity, antimelanoma effect, and cancer selectivity of the novel compounds were evaluated by MTT assay on primary and metastatic cells and on healthy fibroblasts as a reference. The two most active compounds showed lower cytotoxicity and higher activity against metastatic melanoma than paclitaxel and artesunic acid. Further tests, including cellular proliferation, apoptosis, confocal microscopy, and MTT analyses in the presence of an iron chelating agent, were conducted with the aim of tentatively addressing the mode of action and the pharmacokinetic profile of selected compounds.
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Cronin SJF, Tejada MA, Song R, Laval K, Cikes D, Ji M, Brai A, Stadlmann J, Novatchikova M, Perlot T, Ali OH, Botta L, Decker T, Lazovic J, Hagelkruys A, Enquist L, Rao S, Koyuncu OO, Penninger JM. Pseudorabies virus hijacks DDX3X, initiating an addictive "mad itch" and immune suppression, to facilitate viral spread. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.05.09.539956. [PMID: 37214906 PMCID: PMC10197578 DOI: 10.1101/2023.05.09.539956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Infections with defined Herpesviruses, such as Pseudorabies virus (PRV) and Varicella zoster virus (VZV) can cause neuropathic itch, referred to as "mad itch" in multiple species. The underlying mechanisms involved in neuropathic "mad itch" are poorly understood. Here, we show that PRV infections hijack the RNA helicase DDX3X in sensory neurons to facilitate anterograde transport of the virus along axons. PRV induces re-localization of DDX3X from the cell body to the axons which ultimately leads to death of the infected sensory neurons. Inducible genetic ablation of Ddx3x in sensory neurons results in neuronal death and "mad itch" in mice. This neuropathic "mad itch" is propagated through activation of the opioid system making the animals "addicted to itch". Moreover, we show that PRV co-opts and diverts T cell development in the thymus via a sensory neuron-IL-6-hypothalamus-corticosterone stress pathway. Our data reveal how PRV, through regulation of DDX3X in sensory neurons, travels along axons and triggers neuropathic itch and immune deviations to initiate pathophysiological programs which facilitate its spread to enhance infectivity.
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Balestri LI, Trivisani CI, Orofino F, Fiorucci D, Truglio GI, D’Agostino I, Poggialini F, Botta L, Docquier JD, Dreassi E. Discovery and Optimization of a Novel Macrocyclic Amidinourea Series Active as Acidic Mammalian Chitinase Inhibitors. ACS Med Chem Lett 2023; 14:417-424. [PMID: 37077400 PMCID: PMC10107916 DOI: 10.1021/acsmedchemlett.2c00472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/14/2023] [Indexed: 04/21/2023] Open
Abstract
Our research group has been involved for a long time in the development of macrocyclic amidinoureas (MCAs) as antifungal agents. The mechanistic investigation drove us to perform an in silico target fishing study, which allowed the identification of chitinases as one of their putative targets, with 1a showing a submicromolar inhibition of Trichoderma viride chitinase. In this work, we investigated the possibility to further inhibit the corresponding human enzymes, acidic mammalian chitinase (AMCase) and chitotriosidase (CHIT1), involved in several chronic inflammatory lung diseases. Thus, we first validated the inhibitory activity of 1a against AMCase and CHIT1 and then designed and synthesized new derivatives aimed at improving the potency and selectivity against AMCase. Among them, compound 3f emerged for its activity profile along with its promising in vitro ADME properties. We also gained a good understanding of the key interactions with the target enzyme through in silico studies.
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Madeddu F, Di Martino J, Pieroni M, Del Buono D, Bottoni P, Botta L, Castrignanò T, Saladino R. Molecular Docking and Dynamics Simulation Revealed the Potential Inhibitory Activity of New Drugs against Human Topoisomerase I Receptor. Int J Mol Sci 2022; 23:ijms232314652. [PMID: 36498979 PMCID: PMC9737192 DOI: 10.3390/ijms232314652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/25/2022] Open
Abstract
Human Topoisomerase I (hTop1p) is a ubiquitous enzyme that relaxes supercoiled DNA through a conserved mechanism involving transient breakage, rotation, and binding. Htop1p is the molecular target of the chemotherapeutic drug camptothecin (CPT). It causes the hTop1p-DNA complex to slow down the binding process and clash with the replicative machinery during the S phase of the cell cycle, forcing cells to activate the apoptotic response. This gives hTop1p a central role in cancer therapy. Recently, two artesunic acid derivatives (compounds c6 and c7) have been proposed as promising inhibitors of hTop1p with possible antitumor activity. We used several computational approaches to obtain in silico confirmations of the experimental data and to form a comprehensive dynamic description of the ligand-receptor system. We performed molecular docking analyses to verify the ability of the two new derivatives to access the enzyme-DNA interface, and a classical molecular dynamics simulation was performed to assess the capacity of the two compounds to maintain a stable binding pose over time. Finally, we calculated the noncovalent interactions between the two new derivatives and the hTop1p receptor in order to propose a possible inhibitory mechanism like that adopted by CPT.
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Trama A, Matsuda T, Charvat H, Chiang RJ, van Gestel A, Martin F, Geleijnse G, Bonfarnuzzo S, Licitra L, Cavalieri S, Resteghini C, Gatta G, Botta L. 224O Survival differences between EU and Asia for head and neck cancer: Results of the RARECAREnet-Asia collaboration. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Zippilli C, Bartolome MJ, Hilberath T, Botta L, Hollmann F, Saladino R. A Photochemoenzymatic Hunsdiecker-Borodin-Type Halodecarboxylation of Ferulic Acid. Chembiochem 2022; 23:e202200367. [PMID: 35921215 DOI: 10.1002/cbic.202200367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/02/2022] [Indexed: 01/07/2023]
Abstract
A photochemoenzymatic halodecarboxylation of ferulic acid was achieved using vanadate-dependent chloroperoxidase as (bio)catalyst and oxygen and organic solvent as sole stoichiometric reagents in a biphasic system. Performance and selectivity were improved through a phase transfer catalyst, reaching a turnover number of 660.000 for the enzyme.
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Ardino C, Sannio F, Pasero C, Botta L, Dreassi E, Docquier JD, D'Agostino I. The impact of counterions in biological activity: case study of antibacterial alkylguanidino ureas. Mol Divers 2022:10.1007/s11030-022-10505-6. [PMID: 36036302 PMCID: PMC9421121 DOI: 10.1007/s11030-022-10505-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 07/23/2022] [Indexed: 11/25/2022]
Abstract
Abstract Trifluoroacetic acid (TFA), due to its strong acidity and low boiling point, is extensively used in protecting groups-based synthetic strategies. Indeed, synthetic compounds bearing basic functions, such as amines or guanidines (commonly found in peptido or peptidomimetic derivatives), developed in the frame of drug discovery programmes, are often isolated as trifluoroacetate (TF-Acetate) salts and their biological activity is assessed as such in in vitro, ex vivo, or in vivo experiments. However, the presence of residual amounts of TFA was reported to potentially affect the accuracy and reproducibility of a broad range of cellular assays (e. g. antimicrobial susceptibility testing, and cytotoxicity assays) limiting the further development of these derivatives. Furthermore, the impact of the counterion on biological activity, including TF-Acetate, is still controversial. Herein, we present a focused case study aiming to evaluate the activity of an antibacterial AlkylGuanidino Urea (AGU) compound obtained as TF-Acetate (1a) and hydrochloride (1b) salt forms to highlight the role of counterions in affecting the biological activity. We also prepared and tested the corresponding free base (1c). The exchange of the counterions applied to polyguanidino compounds represents an unexplored and challenging field, which required significant efforts for the successful optimization of reliable methods of preparation, also reported in this work. In the end, the biological evaluation revealed a quite similar biological profile for the salt derivatives 1a and 1b and a lower potency was found for the free base 1c. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1007/s11030-022-10505-6.
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Leone A, Cavalli G, Di Marco L, Botta L, Mariani C, Gliozzi G, Votano D, Snaidero S, Nania R, Savini C, Martin–suarez S, Pacini D. P43 CARDIAC SURGERY IN PATIENTS WITH MARFAN SYNDROME: 20–YEAR SINGLE–CENTER EXPERIENCE. Eur Heart J Suppl 2022. [DOI: 10.1093/eurheartj/suac012.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Marfan syndrome is a connective tissue disease whose most fearsome complications are proximal thoracic aorta enlargement and dissection. Nonetheless, cardiac surgery has proven to be able to considerably extend average life expectancy up to approximately 70 years1. The aim of our study was to analyze which procedures had been performed on these patients. From 2000 to 2020 we retrospectively enrolled 89 consecutive patients undergoing a first–time surgical operation at our department. Overall, aortic root surgery represented the most frequent procedure (82 patients, 92.2%), with valve–sparing operation being the preferred one (53 patients, 59.6%). On the other hand, 29 patients (32.6%) underwent Bentall–De Bono procedure. Consequently, we compared these 2 groups of patients. In emergent operation, typically type A aortic dissection, Bentall–De Bono procedure was preferred in almost all cases (p–value 0.031). Few patients required the replacement of part or all of the arch, respectively 3 and 6, with no statistical difference between the two groups. However, while 2 valve–sparing patients required a mitral valve repair, 8 patients who underwent aortic root replacement had also their mitral valve replaced. Considering mean age (average 34.68 years), predictably almost all Bentall–De Bono patients had both their aortic and mitral valve replaced with a mechanical prosthesis (respectively 27 and 7 out of 29 and 8). Although there was no significant difference, replacement of the aortic root with a composite graft required less cross–clamp time, being also different the complexity of the technique. ICU stay was significantly different, since patients who had their aortic valve spared needed intensive assistance for an average of just 1.57 days, while the other group for 6.03 days (p–value 0.037). Similarly, but non significantly, hospital stay differed (13.91 and 18.17 days). Only 2 patients died during hospital recovery, both part of the Bentall–De Bono group (p–value 0.055). During the follow–up period (average 89.39 months), 6 patients died, 2 of them for noncardiac related causes, and 9 (11.3%) required another operation. In conclusion, Marfan syndrome is characterized by a dangerous proximal aorta involvement, which in some cases may be life–threatening if left untreated. Fortunately, surgery has significantly improved life quality and expectancy of these patients, who must be adequately diagnosed and then monitored by their referral centers.
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Cassaro A, Pacelli C, Baqué M, Cavalazzi B, Gasparotto G, Saladino R, Botta L, Böttger U, Rabbow E, de Vera JP, Onofri S. Investigation of fungal biomolecules after Low Earth Orbit exposure: a testbed for the next Moon missions. Environ Microbiol 2022; 24:2938-2950. [PMID: 35437941 PMCID: PMC9540993 DOI: 10.1111/1462-2920.15995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 03/31/2022] [Accepted: 04/02/2022] [Indexed: 11/28/2022]
Abstract
The Moon is characterized by extremely harsh conditions due to ultraviolet irradiation, wide temperature extremes, vacuum resulting from the absence of an atmosphere and high ionizing radiation. Therefore, its surface may provide a unique platform to investigate the effects of such conditions. For lunar exploration with the Lunar Gateway platform, exposure experiments in Low Earth Orbit are useful testbeds to prepare for lunar space experiments and to understand how and if potential biomarkers are influenced by extra‐terrestrial conditions. During the BIOMEX (BIOlogy and Mars EXperiment) project, dried colonies of the fungus Cryomyces antarcticus grown on Lunar Regolith Analogue (LRA) were exposed to space conditions for 16 months aboard the EXPOSE‐R2 payload outside the International Space Station. In this study, we investigated the stability/degradation of fungal biomarkers in LRA after exposure to (i) simulated space and (ii) real space conditions, using Raman spectroscopy, gas chromatography–mass spectrometry and DNA amplification. The results demonstrated that fungal biomarkers were detectable after 16 months of real space exposure. This work will contribute to the interpretation of data from future biological experiments in the Cislunar orbit with the Lunar Gateway platform and/or on the lunar surface, in preparation for the next step of human exploration.
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Suarez SM, Fiorentino M, Murana G, Botta L, Loforte A, Santamaria V, Pagano V, Prestinenzi P, Sabatino M, Bombardini A, Sangiorgi G, Potena L, Pacini D. Medium-Long Term Results of Cardiac Transplantation from Donors Assessed with the “Aged Donor Heart Rescue by Stress Echo” (ADONHERS) Protocol. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Loforte A, Fiorentino F, Gliozzi G, Santamaria V, Cavalli G, Murana G, Mariani C, Botta L, Sabatino M, Masetti M, Potena L, Martin Suarez S, Pacini D. Impact of Recipients Pre-Operative Right Ventricular Dysfunction on Heart Transplantation Outcomes. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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19
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Fiorentino M, Suarez SM, Botta L, Loforte A, Murana G, Amodio C, Costantino A, Cavalli G, Tassi S, Russo A, Masetti M, Potena L, Pacini D. Cardiac Transplantation Italian Allocation System Analysis: Single Center Results. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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20
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Cassaro A, Pacelli C, Baqué M, de Vera JPP, Böttger U, Botta L, Saladino R, Rabbow E, Onofri S. Fungal Biomarkers Stability in Mars Regolith Analogues after Simulated Space and Mars-like Conditions. J Fungi (Basel) 2021; 7:jof7100859. [PMID: 34682280 PMCID: PMC8540304 DOI: 10.3390/jof7100859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 11/18/2022] Open
Abstract
The discovery of life on other planets and moons in our solar system is one of the most important challenges of this era. The second ExoMars mission will look for traces of extant or extinct life on Mars. The instruments on board the rover will be able to reach samples with eventual biomarkers until 2 m of depth under the planet’s surface. This exploration capacity offers the best chance to detect biomarkers which would be mainly preserved compared to samples on the surface which are directly exposed to harmful environmental conditions. Starting with the studies of the endolithic meristematic black fungus Cryomyces antarcticus, which has proved its high resistance under extreme conditions, we analyzed the stability and the resistance of fungal biomarkers after exposure to simulated space and Mars-like conditions, with Raman and Gas Chromatography–Mass Spectrometry, two of the scientific payload instruments on board the rover.
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21
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Mariani C, Murana G, Botta L, Gliozzi G, Folesani G, Santamaria V, Tassi S, Di Marco L, Pacini D. Single centre experience in 1202 biological prosthesis: a comparison between sutured, sutureless and surgical transcatheter aortic valve. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background/Introduction
Different types of bio-prosthesis are now available for the treatment of aortic valve disease.
In absence of the “ideal” heart valve prosthesis, the best choice may be customized on the basis of the patient's profile.
Purpose
The aim of this study was to compare results in different subgroups of bio-prosthesis in elderly patients (>75 years old) undergoing conventional or surgical trans-catheter aortic valve replacement (AVR). Primary outcome was all cause mortality, secondary outcomes were: early post-operative complications (stroke, AV-block, acute kidney injury requiring temporary dialysis), freedom from structural vascular disease (SVD) and from re-operation.
Methods
In this retrospective study we analysed 1202 patients over 75 years old, underwent AVR from 2002 to 2018. Inclusion criteria were: age >75 years underwent AVR; we divided our population in 3 groups according to different strategy: primary aortic valve replacement with sutured (group 1, n=1005), sutureless (group 2, n=103) or surgical trans-catheter aortic valve replacement (group 3, n=94). Exclusion criteria: concomitant cardiac procedure other than coronary artery by-pass graft (CABG) or endocarditis.
Patient and disease characteristics are described as numbers and percentages, continuous data were expressed using mean and standard deviation. Differences between groups were evaluated using either Student t-test or Mann-Whitney U test or ANOVA test. Survival curves of the primary outcome and freedom from secondary outcomes were built with the Kaplan-Meier method.
Results
The mean age of the overall population was 80.5±3.6 years with a mean STS score of assessed at 2.79±2.2% (2.27±1.0 for standard AVR, 3.3±2.2% for sutureless and 6.4±4.5 for S-TAVR, p-value<0.001). Early outcomes are depicted in figure 1. The overall 30-day mortality was 2.9%; among the different groups we observed 2.3%, 4.9% and 7.2% for sutured, sutureless and surgical-TAVR, respectively (p-value=0.01). The groups statistically differed also for permanent pacemaker implantation (sutured AVR 2.2%, sutureless AVR 4.9%, TAVR 9.6% (p-value<0.001) and acute renal failure requiring temporary dialysis sutured AVR 3%, Sutureless AVR 1.9% and Surgical TAVR 9.6% (p-value=0.004). The survival rate at follow-up was significantly different among group (log-rank <0.001, figure 2). Instead, freedom from reoperation was similar between cohorts (figure 2.)
Conclusion(s)
The outcomes of surgical AVR in a elderly population could be safely guaranteed with different biological prosthesis and operative techniques. A patient tailored approach should be always advised to improve current available transcatheter options.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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22
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Zippilli C, Bizzarri BM, Gabellone S, Botta L, Saladino R. Oxidative Coupling of Coumarins by Blue‐LED‐Driven
in situ
Activation of Horseradish Peroxidase in a Two‐Liquid‐Phase System. ChemCatChem 2021. [DOI: 10.1002/cctc.202100753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Botta L, Cesarini S, Zippilli C, Bizzarri BM, Fanelli A, Saladino R. Multicomponent reactions in the synthesis of antiviral compounds. Curr Med Chem 2021; 29:2013-2050. [PMID: 34620058 DOI: 10.2174/0929867328666211007121837] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/16/2021] [Accepted: 08/18/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Multicomponent reactions are one-pot processes for the synthesis of highly functionalized hetero-cyclic and hetero-acyclic compounds, often endowed with biological activity. OBJECTIVE Multicomponent reactions are considered green processes with high atom economy. In addition, they present advantages compared to the classic synthetic methods such as high efficiency and low wastes production. METHOD In these reactions two or more reagents are combined together in the same flask to yield a product containing almost all the atoms of the starting materials. RESULTS The scope of this review is to present an overview of the application of multicomponent reactions in the synthesis of compounds endowed with antiviral activity. The syntheses are classified depending on the viral target. CONCLUSION Multicomponent reactions can be applied to all the stages of the drug discovery and development process making them very useful in the search for new agents active against emerging (viral) pathogens.
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Bizzarri BM, Fanelli A, Botta L, Zippilli C, Cesarini S, Saladino R. Dendrimeric Structures in the Synthesis of Fine Chemicals. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5318. [PMID: 34576547 PMCID: PMC8471025 DOI: 10.3390/ma14185318] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/30/2021] [Accepted: 09/09/2021] [Indexed: 12/13/2022]
Abstract
Dendrimers are highly branched structures with a defined shape, dimension, and molecular weight. They consist of three major components: the central core, branches, and terminal groups. In recent years, dendrimers have received great attention in medicinal chemistry, diagnostic field, science of materials, electrochemistry, and catalysis. In addition, they are largely applied for the functionalization of biocompatible semiconductors, in gene transfection processes, as well as in the preparation of nano-devices, including heterogeneous catalysts. Here, we describe recent advances in the design and application of dendrimers in catalytic organic and inorganic processes, sustainable and low environmental impact, photosensitive materials, nano-delivery systems, and antiviral agents' dendrimers.
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Bizzarri BM, Fanelli A, Botta L, De Angelis M, Palamara AT, Nencioni L, Saladino R. Aminomalononitrile inspired prebiotic chemistry as a novel multicomponent tool for the synthesis of imidazole and purine derivatives with anti-influenza A virus activity. RSC Adv 2021; 11:30020-30029. [PMID: 35480240 PMCID: PMC9040849 DOI: 10.1039/d1ra05240c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/30/2021] [Indexed: 12/21/2022] Open
Abstract
Amino imidazole carbonitrile derivatives decorated with α-amino acid side-chains have been synthesized by a multicomponent microwave assisted reaction inspired by the prebiotic chemistry of aminomalononitrile as a tool for generating high chemical diversity. These compounds were used as annulation synthons for the preparation of 8,9-disubstituted-6,9-dihydro-1H-purin-6-ones by reaction with formic acid as a simple C-1 donor reagent. The novel heterocycles were characterized by significant activity against influenza A virus, amino imidazole carbonitrile derivatives showing the highest activity. Thus, the chemical complexity generated by prebiotic chemistry furnished a general tool for the identification of novel antiviral agents. Amino imidazole carbonitrile derivatives decorated with α-amino acid side-chains have been synthesized by a multicomponent microwave assisted reaction inspired by the prebiotic chemistry of aminomalononitrile for generating high chemical diversity.![]()
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