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Saletti M, Paolino M, Venditti J, Bonechi C, Giuliani G, Lamponi S, Tassone G, Boccia A, Botta C, Blancafort L, Poggialini F, Vagaggini C, Cappelli A. A Facile Access to Green Fluorescent Albumin Derivatives. Chembiochem 2024; 25:e202300862. [PMID: 38369609 DOI: 10.1002/cbic.202300862] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 01/24/2024] [Accepted: 12/22/2023] [Indexed: 02/20/2024]
Abstract
A Morita-Baylis-Hillman Adduct (MBHA) derivative bearing a triphenylamine moiety was found to react with human serum albumin (HSA) shifting its emission from the blue to the green-yellow thus leading to green fluorescent albumin (GFA) derivatives and enlarging the platform of probes for aggregation-induced fluorescent-based detection techniques. A possible interaction of MBHA derivative 7 with a lipophilic pocket within the HSA structure was suggested by docking studies. DLS experiments showed that the reaction with HSA induce a conformational change of the protein contributing to the aggregation process of GFA derivatives. The results of investigations on the biological properties suggested that GFA retained the ability of binding drug molecules such as warfarin and diazepam. Finally, cytotoxicity evaluation studies suggested that, although the MBHA derivative 7 at 0.1 μg/mL affected the percentage of cell viability in comparison to the negative control, it cannot be considered cytotoxic, whereas at all the other concentrations≥0.5 μg/mL resulted cytotoxic at different extent.
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Affiliation(s)
- Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Jacopo Venditti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Claudia Bonechi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Stefania Lamponi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Giusy Tassone
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Antonella Boccia
- Istituto di Scienze e Tecnologie Chimiche "G. Natta" - SCITEC (CNR), Via A. Corti 12, 20133, Milano, Italy
| | - Chiara Botta
- Istituto di Scienze e Tecnologie Chimiche "G. Natta" - SCITEC (CNR), Via A. Corti 12, 20133, Milano, Italy
| | - Lluís Blancafort
- Institute of Computational Chemistry and Catalysis and Department of Chemistry, University of Girona, C/M. A. Capmany 69, 17003, Girona, Spain
| | - Federica Poggialini
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Chiara Vagaggini
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università degli Studi di, Siena, Via Aldo Moro 2, 53100, Siena, Italy
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2
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Terracina F, Saletti M, Paolino M, Venditti J, Giuliani G, Bonechi C, Licciardi M, Cappelli A. Cross-Linked Hyaluronan Derivatives in the Delivery of Phycocyanin. Gels 2024; 10:91. [PMID: 38391421 PMCID: PMC10887560 DOI: 10.3390/gels10020091] [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: 12/25/2023] [Revised: 01/15/2024] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
An easy and viable crosslinking technology, based on the "click-chemistry" reaction copper(I)-catalyzed azide-alkyne 1,3-dipolar cycloaddition (click-crosslinking), was applied to graft copolymers of medium molecular weight (i.e., 270 kDa) hyaluronic acid (HA) grafted with ferulic acid (FA) residues bearing clickable propargyl groups, as well as caffeic acid derivatives bearing azido-terminated oligo(ethylene glycol) side chains. The obtained crosslinked materials were characterized from the point of view of their structure and aggregation liability to form hydrogels in a water environment. The most promising materials showed interesting loading capability regarding the antioxidant agent phycocyanin (PC). Two novel materials complexes (namely HA(270)-FA-TEGEC-CL-20/PC and HA(270)-FA-HEGEC-CL-20/PC) were obtained with a drug-to-material ratio of 1:2 (w/w). Zeta potential measurements of the new complexes (-1.23 mV for HA(270)-FA-TEGEC-CL-20/PC and -1.73 mV for HA(270)-FA-HEGEC-CL-20/PC) showed alterations compared to the zeta potential values of the materials on their own, suggesting the achievement of drug-material interactions. According to the in vitro dissolution studies carried out in different conditions, novel drug delivery systems (DDSs) were obtained with a variety of characteristics depending on the desired route of administration and, consequently, on the pH of the surrounding environment, thanks to the complexation of phycocyanin with these two new crosslinked materials. Both complexes showed excellent potential for providing a controlled/prolonged release of the active pharmaceutical ingredient (API). They also increased the amount of drug that reach the target location, enabling pH-dependent release. Importantly, as demonstrated by the DPPH free radical scavenging assay, the complexation process, involving freezing and freeze-drying, showed no adverse effects on the antioxidant activity of phycocyanin. This activity was preserved in the two novel materials and followed a concentration-dependent pattern similar to pure PC.
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Affiliation(s)
- Francesca Terracina
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Jacopo Venditti
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Claudia Bonechi
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy
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Pepi S, Paolino M, Saletti M, Venditti J, Talarico L, Andreassi M, Giuliani G, Caselli G, Artusi R, Cappelli A, Leone G, Magnani A, Rovati L. Ferulated Poly(vinyl alcohol) based hydrogels. Heliyon 2023; 9:e22330. [PMID: 38045211 PMCID: PMC10692910 DOI: 10.1016/j.heliyon.2023.e22330] [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: 07/24/2023] [Revised: 10/18/2023] [Accepted: 11/09/2023] [Indexed: 12/05/2023] Open
Abstract
New graft copolymers were prepared by reaction of poly (vinyl alcohol) (PVA) with mono-imidazolide or bis-imidazolide derivatives of ferulic acid (FA) with the formation of ester bonds. The obtained graft copolymers, thanks to the crosslinking capability of FA, formed in water strong gels as verified by rheological analyses. The resulting hydrogels were characterized to evaluate their applicability as wound dressing. In this perspective, their capability to absorb and retain a large amount of fluid without dissolving was verified by swelling kinetics and Moisture Vapour Transmission Rate measurements. Their stability towards mechanical solicitations was assessed by quantifying elasticity, compliance, stress-relaxation, and adhesivity properties. The analyses pointed out that hydrogel PVA-FA2-3 obtained by feruloylation of PVA with bis-imidazole derivative of ferulic acid using an acylation agent/polymer molar ratio 0.03/1 resulted the best candidate for the foreseen application.
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Affiliation(s)
- Simone Pepi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Jacopo Venditti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Luigi Talarico
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Marco Andreassi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | | | - Roberto Artusi
- Rottapharm Biotech, Via Valosa di Sopra 7, 20052, Monza, Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
| | - Gemma Leone
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy
| | - Agnese Magnani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università Degli Studi di Siena, Via A. Moro 2, 53100, Siena, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy
| | - Lucio Rovati
- Rottapharm Biotech, Via Valosa di Sopra 7, 20052, Monza, Italy
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Paolino M, de Candia M, Purgatorio R, Catto M, Saletti M, Tondo AR, Nicolotti O, Cappelli A, Brizzi A, Mugnaini C, Corelli F, Altomare CD. Investigation on Novel E/Z 2-Benzylideneindan-1-One-Based Photoswitches with AChE and MAO-B Dual Inhibitory Activity. Molecules 2023; 28:5857. [PMID: 37570828 PMCID: PMC10421270 DOI: 10.3390/molecules28155857] [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: 06/25/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The multitarget therapeutic strategy, as opposed to the more traditional 'one disease-one target-one drug', may hold promise in treating multifactorial neurodegenerative syndromes, such as Alzheimer's disease (AD) and related dementias. Recently, combining a photopharmacology approach with the multitarget-directed ligand (MTDL) design strategy, we disclosed a novel donepezil-like compound, namely 2-(4-((diethylamino)methyl)benzylidene)-5-methoxy-2,3-dihydro-1H-inden-1-one (1a), which in the E isomeric form (and about tenfold less in the UV-B photo-induced isomer Z) showed the best activity as dual inhibitor of the AD-related targets acetylcholinesterase (AChE) and monoamine oxidase B (MAO-B). Herein, we investigated further photoisomerizable 2-benzylideneindan-1-one analogs 1b-h with the unconjugated tertiary amino moiety bearing alkyls of different bulkiness and lipophilicity. For each compound, the thermal stable E geometric isomer, along with the E/Z mixture as produced by UV-B light irradiation in the photostationary state (PSS, 75% Z), was investigated for the inhibition of human ChEs and MAOs. The pure E-isomer of the N-benzyl(ethyl)amino analog 1h achieved low nanomolar AChE and high nanomolar MAO-B inhibition potencies (IC50s 39 and 355 nM, respectively), whereas photoisomerization to the Z isomer (75% Z in the PSS mixture) resulted in a decrease (about 30%) of AChE inhibitory potency, and not in the MAO-B one. Molecular docking studies were performed to rationalize the different E/Z selectivity of 1h toward the two target enzymes.
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Affiliation(s)
- Marco Paolino
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Modesto de Candia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Rosa Purgatorio
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Mario Saletti
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Anna Rita Tondo
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Orazio Nicolotti
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
| | - Andrea Cappelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Antonella Brizzi
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Claudia Mugnaini
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Federico Corelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via A. Moro 2, I-53100 Siena, Italy; (M.P.); (M.S.); (A.C.); (A.B.); (C.M.); (F.C.)
| | - Cosimo D. Altomare
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, Via E. Orabona 4, I-70125 Bari, Italy; (M.d.C.); (R.P.); (M.C.); (A.R.T.); (O.N.)
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Paolino M, Saletti M, Reale A, Razzano V, Giuliani G, Donati A, Bonechi C, Giorgi G, Mercorillo G, Samperi F, Mróz W, Botta C, Cappelli A. Spontaneous Polymerization of Benzofulvene Monomers Bearing a 4-Pyridylacetylene Substituent in Different Positions of the Benzofulvene Scaffold. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111957] [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: 03/03/2023]
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Paolino M, Varvarà P, Saletti M, Reale A, Gentile M, Paccagnini E, Giuliani G, Komber H, Licciardi M, Cappelli A. Hyaluronan‐coated poly(propylene imine) dendrimers as biomimetic nanocarriers of doxorubicin. J Appl Polym Sci 2022. [DOI: 10.1002/app.53300] [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: 11/13/2022]
Affiliation(s)
- Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Paola Varvarà
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Palermo Italy
| | - Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Annalisa Reale
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Mariangela Gentile
- Dipartimento di Scienze della Vita Università degli Studi di Siena Siena Italy
| | - Eugenio Paccagnini
- Dipartimento di Scienze della Vita Università degli Studi di Siena Siena Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
| | - Hartmut Komber
- Center Macromolecular Structure Analysis Leibniz Institute for Polymer Research Dresden Germany
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Palermo Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Siena Italy
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Paolino M, Saletti M, Reale A, Licciardi M, Varvarà P, Marquette A, Léonard J, Bonechi C, Donati A, Giorgi G, Giuliani G, Carlotti B, Ortica F, Latterini L, Gentile M, Paccagnini E, Olivucci M, Cappelli A. Design, Synthesis and Characterization of a Visible‐Light‐Sensitive Molecular Switch and Its PEGylation Towards a Self‐Assembling Molecule. Chemistry 2022; 28:e202201477. [PMID: 35695822 PMCID: PMC9541190 DOI: 10.1002/chem.202201477] [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] [Received: 05/16/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Annalisa Reale
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Mariano Licciardi
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Via Archirafi 32 90123 Palermo Italy
| | - Paola Varvarà
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF) Università degli Studi di Palermo Via Archirafi 32 90123 Palermo Italy
| | - Arnaud Marquette
- Institut de Physique et Chimie des Matériaux de Strasbourg Université de Strasbourg CNRS UMR 7504 Strasbourg France
| | - Jérémie Léonard
- Institut de Physique et Chimie des Matériaux de Strasbourg Université de Strasbourg CNRS UMR 7504 Strasbourg France
| | - Claudia Bonechi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Alessandro Donati
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Gianluca Giorgi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Benedetta Carlotti
- Dipartimento di Chimica, Biologia e Biotecnologie Università di Perugia Via Elce di Sotto, 8 06123 Perugia Italy
| | - Fausto Ortica
- Dipartimento di Chimica, Biologia e Biotecnologie Università di Perugia Via Elce di Sotto, 8 06123 Perugia Italy
| | - Loredana Latterini
- Dipartimento di Chimica, Biologia e Biotecnologie Università di Perugia Via Elce di Sotto, 8 06123 Perugia Italy
| | - Mariangela Gentile
- Dipartimento di Scienze della Vita Università degli Studi di Siena Via A. Moro 53100 Siena Italy
| | - Eugenio Paccagnini
- Dipartimento di Scienze della Vita Università degli Studi di Siena Via A. Moro 53100 Siena Italy
| | - Massimo Olivucci
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
- Chemistry Department Bowling Green State University 43403 Bowling Green OH USA) ok
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022) Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
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Saletti M, Maramai S, Reale A, Paolino M, Brogi S, Di Capua A, Cappelli A, Giorgi G, D'Avino D, Rossi A, Ghelardini C, Di Cesare Mannelli L, Sardella R, Carotti A, Woelkart G, Klösch B, Bigogno C, Dondio G, Anzini M. Novel analgesic/anti-inflammatory agents: 1,5-Diarylpyrrole nitrooxyethyl sulfides and related compounds as Cyclooxygenase-2 inhibitors containing a nitric oxide donor moiety endowed with vasorelaxant properties. Eur J Med Chem 2022; 241:114615. [DOI: 10.1016/j.ejmech.2022.114615] [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: 05/04/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/04/2022]
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Saletti M, Paolino M, Ballerini L, Giuliani G, Leone G, Lamponi S, Andreassi M, Bonechi C, Donati A, Piovani D, Schieroni AG, Magnani A, Cappelli A. Click-Chemistry Cross-Linking of Hyaluronan Graft Copolymers. Pharmaceutics 2022; 14:pharmaceutics14051041. [PMID: 35631626 PMCID: PMC9146110 DOI: 10.3390/pharmaceutics14051041] [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] [Received: 04/13/2022] [Revised: 05/04/2022] [Accepted: 05/07/2022] [Indexed: 01/27/2023] Open
Abstract
An easy and viable crosslinking procedure by click-chemistry (click-crosslinking) of hyaluronic acid (HA) was developed. In particular, the clickable propargyl groups of hyaluronane-based HA-FA-Pg graft copolymers showing low and medium molecular weight values were exploited in crosslinking by click-chemistry by using a hexa(ethylene glycol) spacer. The resulting HA-FA-HEG-CL materials showed an apparent lack of in vitro cytotoxic effects, tuneable water affinity, and rheological properties according to the crosslinking degree that suggests their applicability in different biomedical fields.
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Affiliation(s)
- Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
- Correspondence: (M.P.); (A.C.); Tel.: +39-0577-234320 (A.C.)
| | - Lavinia Ballerini
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Gemma Leone
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Stefania Lamponi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Marco Andreassi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Claudia Bonechi
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Alessandro Donati
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Daniele Piovani
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”-SCITEC (CNR), Via A. Corti 12, 20133 Milano, Italy; (D.P.); (A.G.S.)
| | - Alberto Giacometti Schieroni
- Istituto di Scienze e Tecnologie Chimiche “G. Natta”-SCITEC (CNR), Via A. Corti 12, 20133 Milano, Italy; (D.P.); (A.G.S.)
| | - Agnese Magnani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018–2022), Università degli Studi di Siena, Via Aldo Moro 2, 53100 Siena, Italy; (M.S.); (L.B.); (G.G.); (G.L.); (S.L.); (M.A.); (C.B.); (A.D.); (A.M.)
- Correspondence: (M.P.); (A.C.); Tel.: +39-0577-234320 (A.C.)
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10
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Paolino M, Saletti M, Reale A, Razzano V, Giuliani G, Donati A, Bonechi C, Giorgi G, Atrei A, Mauro M, Scamporrino A, Samperi F, Fois E, Tabacchi G, Botta C, Cappelli A. Spontaneous polymerization of benzofulvene derivatives bearing complexed or un-complexed pyridine rings. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111137] [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: 11/26/2022]
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11
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Giordani A, Menziani MC, Moresco RM, Matarrese M, Paolino M, Saletti M, Giuliani G, Anzini M, Cappelli A. Exploring Translocator Protein (TSPO) Medicinal Chemistry: An Approach for Targeting Radionuclides and Boron Atoms to Mitochondria. J Med Chem 2021; 64:9649-9676. [PMID: 34254805 DOI: 10.1021/acs.jmedchem.1c00379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Translocator protein 18 kDa [TSPO or peripheral-type benzodiazepine receptor (PBR)] was identified in the search of binding sites for benzodiazepine anxiolytic drugs in peripheral regions. In these areas, binding sites for TSPO ligands were recognized in steroid-producing tissues. TSPO plays an important role in many cellular functions, and its coding sequence is highly conserved across species. TSPO is located predominantly on the membrane of mitochondria and is overexpressed in several solid cancers. TSPO basal expression in the CNS is low, but it becomes high in neurodegenerative conditions. Thus, TSPO constitutes not only as an outstanding drug target but also as a valuable marker for the diagnosis of a number of diseases. The aim of the present article is to show the lesson we have learned from our activity in TSPO medicinal chemistry and in approaching the targeted delivery to mitochondria by means of TSPO ligands.
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Affiliation(s)
- Antonio Giordani
- Rottapharm Biotech S.p.A., Via Valosa di Sopra 9, 20900 Monza, Italy
| | - Maria Cristina Menziani
- Dipartimento di Scienze Chimiche e Geologiche, Università di Modena e Reggio Emilia, Via Campi 103, 41121 Modena, Italy
| | - Rosa Maria Moresco
- Department of Medicine and Surgery, University of Milan-Bicocca, Nuclear Medicine Department, San Raffaele Scientific Institute, IBFM-CNR, Via Olgettina 60, 20132 Milano, Italy
| | - Mario Matarrese
- Department of Medicine and Surgery, University of Milan-Bicocca, Nuclear Medicine Department, San Raffaele Scientific Institute, IBFM-CNR, Via Olgettina 60, 20132 Milano, Italy
| | - Marco Paolino
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Mario Saletti
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Germano Giuliani
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Maurizio Anzini
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università di Siena, Via A. Moro 2, 53100 Siena, Italy
| | - Andrea Cappelli
- Dipartimento di Biotecnologie, Chimica e Farmacia (Dipartimento di Eccellenza 2018-2022), Università di Siena, Via A. Moro 2, 53100 Siena, Italy
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12
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Giuliani G, Merolla A, Paolino M, Reale A, Saletti M, Blancafort L, Cappelli A, Benfenati F, Cesca F. Stability Studies of New Caged bis-deoxy-coelenterazine Derivatives and Their Potential Use as Cellular pH Probes. Photochem Photobiol 2020; 97:343-352. [PMID: 33095933 DOI: 10.1111/php.13347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/16/2020] [Indexed: 11/28/2022]
Abstract
The synthesis of new bis-deoxy-coelenterazine (1) derivatives bearing ester protective groups (acetate, propionate and butyrate esters) was accomplished. Moreover, their hydrolytic stability at room temperature was evaluated in dimethylsulfoxide (DMSO) as solvent, using the nuclear magnetic resonance (NMR) spectra of the key products at different time intervals. The results showed an increasing hydrolysis rate according to longest aliphatic chain, with a half-life of 24 days of the more stable acetate derivative (4a). Furthermore, the analysis of the experimental data revealed the greater stability of the enol tautomer in this aprotic polar solvent. This result was confirmed by theoretical calculations using the density functional theory (DFT) approach, which gave us the opportunity to propose a detailed decomposition mechanism. Additionally, the derivatives obtained were tested by bioluminescence luciferase assays to evaluate their potential use as extracellular pH-sensitive reporter substrates of luciferase. The biological data support the idea that further structural modifications of these molecules may open promising perspectives in this field of research.
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Affiliation(s)
- Germano Giuliani
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Assunta Merolla
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy
| | - Marco Paolino
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Annalisa Reale
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Mario Saletti
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Lluís Blancafort
- Departament de Química, Facultat de Ciències, Institut de Química Computacional i Catàlisi (IQCC), Universitat de Girona, Girona, Spain
| | - Andrea Cappelli
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Siena, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Fabrizia Cesca
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Department of Life Sciences, University of Trieste, Trieste, Italy
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13
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Di Perri T, Laghi Pasini F, Acciavatti A, Pieragalli D, Domini L, Pecchi S, Messa G, Frigerio C, Materazzi M, Galigani C, Pastorelli M, Blardi P, Damiani P, Guideri F, De Franco V, Saletti M, Monaci A. Haemodynamics, rheology and mechanism of action of Iloprost in man. Clin Hemorheol Microcirc 2016. [DOI: 10.3233/ch-1990-10203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- T. Di Perri
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - F. Laghi Pasini
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - A. Acciavatti
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - D. Pieragalli
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - L. Domini
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - S. Pecchi
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - G.L. Messa
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - C. Frigerio
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - M. Materazzi
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - C. Galigani
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - M. Pastorelli
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - P. Blardi
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - P. Damiani
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - F. Guideri
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - V. De Franco
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - M. Saletti
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
| | - A. Monaci
- Istituto Patologia Speciale Medica e Metodologia Clinica, Universita di Siena, Italy
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Pasqui AL, Savini E, Saletti M, Guzzo C, Puccetti L, Auteri A. Chronic urticaria and blastocystis hominis infection: a case report. Eur Rev Med Pharmacol Sci 2004; 8:117-20. [PMID: 15368795] [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] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
We report a case of a 45 year old woman which fulfilled the criteria of chronic urticaria (remitting and relapsing bouts of erythematous and pruriginuos lesions without angioedema, lasted four months). Cutaneous manifestations were not related to a specific inducing factor, had no benefit from antihystamine and steroid drugs and were associated sometimes with mild gastroentric disorders. Patient was submitted to extensive clinical, laboratory and intrumental investigations which permit to exclude many conditions: allergy to inhalants, food, insects and drug adverse reactions, autoimmune urticaria, autoimmune diseases, neoplastic and infectious diseases. Finally coprocolture disclosed the presence of Blastocystis hominis in stool samples thus permitting to associate urticaria to parasitic infection. Both cutaneous manifestations and mild abdomen disturbs disappeared after appropriate treatment. Despite the high diffusion the aetiopathogenesis of chronic urticaria remains often undefined. A large number of parasites have been correlated with urticaria but few data exist as regards Blastocystis hominis infection; then our findings may add evidence to the role of this parasite in inducing chronic urticaria. Considering that Blastocystis hominis is a modest pathogen for humans, the mechanism is probably the typical one of cutaneous allergic hypersensitivity; antigen parasites induce the activation of specific clones of Th2 lymphocytes, the release of related cytokines and the consequent IgE production.
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Affiliation(s)
- A L Pasqui
- Department of Internal Medicine and Immunology, University of Siena (Italy)
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Pastorelli M, Pasqui AL, Puccetti L, Beermann U, Biagi F, Camarri A, Palazzuoli A, Servi M, Costa A, Bischeri D, Del Santo F, Gelli F, Saletti M, Bruni F, Auteri A. Quantitative evaluation of microvessels in Behçet's disease. Adv Exp Med Biol 2003; 528:427-33. [PMID: 12918738 DOI: 10.1007/0-306-48382-3_87] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- M Pastorelli
- Department of Internal Medicine and Immunology, University of Siena, Siena, Italy
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16
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Pasqui AL, Pastorelli M, Puccetti L, Beerman U, Biagi F, Camarri A, Palazzuoli A, Servi M, Bischeri D, Saletti M, Bruni F, Auteri A. Microvascular assessment in Behçet disease: videocapillaroscopic study. Int J Tissue React 2003; 25:105-15. [PMID: 14756192] [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] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
The aim of this study was to evaluate microvascular assessment in patients with Behcet disease (BD) by means of an intravital videocapillaroscopic study. Sixteen BD patients were compared with an equivalent group of healthy subjects matched for age and sex. Videocapillaroscopy (VCP) was performed in peripheral areas and in conjunctiva, and morphological and quantitative parameters were assessed. In both areas VCP showed several morphological alterations (microaneurysms, megacapillaries, desertification areas) detectable in a high percentage of patients; quantitatively we found significant changes of incisuring and sludging score, of capillary loop intermediate branch length (in peripheral areas) and of arteriole/venule diameter (in conjunctiva). Therefore, vessel involvement included both the number and the whole vessel structure and was seen both in peripheral and conjunctival areas when the two different vascular beds of micro- and paramicrocirculation were examined. We conclude that an important rearrangement of microcirculation is detectable in BD and that VCP may have diagnostic and prognostic value, providing qualitative and quantitative information able to define the systemic extension of vascular damage and the degree of vessel wall alteration.
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Affiliation(s)
- A L Pasqui
- Department of Internal Medicine and Immunology, University of Siena, Italy.
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Bova G, Pasqui A, Saletti M, Auteri A. P41 Complement system in myocardial infarction. Atherosclerosis 1999. [DOI: 10.1016/s0021-9150(99)90185-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bova G, Pasqui AL, Saletti M, Bruni F, Auteri A. POEMS syndrome with vascular lesions: a role for interleukin-1beta and interleukin-6 increase--a case report. Angiology 1998; 49:937-40. [PMID: 9822051 DOI: 10.1177/000331979804901110] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 11/15/2022]
Abstract
The authors describe the case of a 60-year-old man with POEMS syndrome associated with vascular lesions. The patient had osteosclerotic myeloma IgA (lambda), polyneuropathy, endocrinopathy, and skin changes. Subsequently, he developed gangrene of the lower limbs with no response to heparin therapy. The humoral study showed thrombocythemia, high levels of interleukin-1beta (IL-1beta) and IL-6 and of some coagulative/fibrinolytic and endothelial factors (von Willebrand factor, plasmin-antiplasmin complexes, plasminogen activator, and endothelial adhesion molecule ICAM-1). The authors suggest that these factors, induced by the increased levels of cytokines, could be responsible for microvascular damage, gangrene, and heparin resistance.
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Affiliation(s)
- G Bova
- Department of Clinical Immunology, Atherosclerosis Research Center, University of Siena, Italy
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19
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Pasqui AL, Bova G, Saletti M, Bruni F, Di Renzo M, Auteri A. POEMS syndrome with vascular lesions and renal carcinoma - possible role of cytokines. Eur J Med Res 1998; 3:304-6. [PMID: 9620893] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
We describe here the case of a 60 years man with POEMS syndrome associated with renal tumor and vascular lesions. The patient had osteosclerotic myeloma IgA-lambda, polyneuropathy, endocrinopathy and skin changes. In addition, he developed renal clear cell carcinoma and gangrena of lower limbs. The humoral study showed thrombocytosis, high levels of IL-1beta and IL-6 and of some coagulative/fibrinolytic and endothelial factors (von Willebrand factor, plasmin-antiplasmine complexes, plasminogen activator). We suggest the hypothesis that these factors are capable of determining some manifestations of POEMS syndrome.
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Affiliation(s)
- A L Pasqui
- U.O. Immunologia Clinica, Policlinico Le Scotte , I-53100 Siena, Italy.
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20
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Di Renzo M, Pasqui AL, Bruni F, Saletti M, Bova G, Chiarion C, Carducci A, Auteri A. Evaluation of some immune functions in a patient affected by common variable immunodeficiency using luminescent techniques. J Biolumin Chemilumin 1997; 12:193-7. [PMID: 9481606 DOI: 10.1002/(sici)1099-1271(199707/08)12:4<193::aid-bio441>3.0.co;2-n] [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] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Common variable immunodeficiency is a primary immunodeficiency characterized by a failure of antibody synthesis, whose fundamental immunologic abnormality is still unknown. In our study, we evaluated some immune functions using chemiluminescence in a 32-year-old woman affected by common variable immunodeficiency. In particular, we showed an impairment of her lymphomonocyte proliferative response which was evaluated using a method based on the bioluminescent measurement of ATP. Besides, we found a reduction of her lymphomonocyte IL2 and IL4 production: the IL4 production was evaluated through an ELISA method, whereas the IL2 activity was determined by its ability to support the IL2-dependent murine T-cell line (CTLL) proliferation which was established through a method based on the bioluminescent measurement of ATP. Finally, we evaluated both yeast-induced and fMLP-induced polymorphonuclear and monocyte oxidative metabolism through a luminol-amplified chemiluminescence; these functions were within normal values. Therefore, in our patient affected by common variable immunodeficiency, we demonstrated an impairment of cellular immunity, which might contribute to the pathogenesis of the disease.
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Affiliation(s)
- M Di Renzo
- Department of Clinical Immunology, University of Siena, Italy
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Di Renzo M, Pasqui AL, Bruni F, Saletti M, Bova G, Chiarion C, Girardello R, Ferrì P, Auteri A. The in vitro effect of Pidotimod on some immune functions in cancer patients. Immunopharmacol Immunotoxicol 1997; 19:37-51. [PMID: 9049658 DOI: 10.3109/08923979709038532] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [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: 02/03/2023]
Abstract
There are several reports concerning an impairment of cellular immune response in patients affected by malignant disease. The aim of this study was to evaluate the in vitro effect of Pidotimod, a synthetic biological response modifier, on some immune functions in 14 cancer patients. In particular, we showed that these subjects had a significantly reduced peripheral blood mononuclear cell (PBMC) proliferation both in response to PHA and to Con A in comparison with a group of healthy subjects. Besides, they showed a significantly reduced PBMC IL2 production, which was evaluated both through an ELISA method and a biological assay. The in vitro addition of increasing concentrations of Pidotimod (10, 25 and 50 ug/ml) was able to enhance PBMC proliferation and IL2 production significantly. However, in spite of the addition of Pidotimod, both immune functions in our neoplastic patients did not reach normal values.
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Affiliation(s)
- M Di Renzo
- Department of Clinical Immunology, University of Siena, Italy
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Pasqui AL, Di Renzo M, Bova G, Bruni F, Saletti M, Chiarion C, Auteri A. Changes of some immune functions after percutaneous transluminal coronary angioplasty (PTCA). Int J Clin Pharmacol Res 1995; 15:139-144. [PMID: 8871263] [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] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This study aimed to evaluate some aspects of the immune response in 10 cardiopathic patients during the execution of percutaneous transluminal coronary angioplasty (PTCA) by obtaining blood samples from coronary sinus. In particular we considered some PMN functions as well as lysosomal release and oxidative metabolism evaluated as chemiluminescence and superoxide anion (O2) production. We also studied serum levels of complement C3 and C4, lymphocyte populations (CD3, CD4, CD8, CD19, CD16) and plasmatic determinations of interleukin 2 (IL2). After PTCA, we found a decrease of total count of blood lymphocytes, whereas the number of neutrophils remained unchanged. The decrease involved to a similar extent the lymphocyte subsets CD3, CD4 and CD8, whereas CD19 and CD16 were unchanged. The plasmatic levels of IL2 did not show any significant modification. Concerning PMN, their chemiluminescence was significantly increased after PTCA as compared to basal values: this response was promptly detectable in isolated PMN, both without and with stimulation with fMLP. Similarly superoxide anion production, both spontaneous and stimulated, was increased in PMN suspensions after PTCA, even if this increase did not reach statistical significance. As regards circulating levels of lysosomal enzymes, we found a significant increase of plasmatic levels of elastase, whereas the serum determinations of lysozyme and betaglucuronidase did not change. Concerning the complement system, we found a significant decrease of complement fractions C3 and C4. In conclusion, our results showed certain changes in some humoral and cellular systems; in particular the neutrophil activation through the release of proteolytic enzymes and the generation of oxygen radicals could increase the damage to vessel walls and activate other systems having a negative effect in the ischaemia-associated consequences.
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Affiliation(s)
- A L Pasqui
- Department of Clinical Immunology and Allergology, University of Siena, Italy
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Acciavatti A, Pieragalli D, Provvedi T, Messa G, Frigerio C, Saletti M, Galigani C, Guideri F, Franchi M, Blardi P, Laghi Pasini F, Di Perri T. Circadian variation of platelet aggregation and blood rheology. Clin Hemorheol Microcirc 1993. [DOI: 10.3233/ch-1993-13203] [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: 11/15/2022]
Affiliation(s)
- A. Acciavatti
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - D. Pieragalli
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - T. Provvedi
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - G.L. Messa
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - C. Frigerio
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - M. Saletti
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - C. Galigani
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - F. Guideri
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - M. Franchi
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - P. Blardi
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - F. Laghi Pasini
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
| | - T. Di Perri
- Istituto di Clinica Medica Generale, Universitá degli Studi di Siena, Italy
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24
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Auteri A, Pasqui AL, Bruni F, Saletti M, Di Renzo M, Bova G. Effect of Pidotimod, a new immunostimulating agent, on some aspects of immune response. In vitro study. Pharmacol Res 1992; 26 Suppl 2:196-7. [PMID: 1409308 DOI: 10.1016/1043-6618(92)90662-u] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- A Auteri
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italia
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25
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Pasini FL, Pecchi S, Guideri F, DeFranco V, Damiani P, Galigani C, Saletti M, Verzuri MS, Blardi P, Di Perri T. Hemodynamic and hemorheologic effects of i.v. Dilevalol in hypertensive patients. Angiology 1991; 42:703-10. [PMID: 1928811 DOI: 10.1177/000331979104200904] [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: 12/29/2022]
Abstract
The authors evaluated the effect of Dilevalol infusion on blood pressure, heart rate, central hemodynamics, and rheologic parameters in hospitalized inpatients affected with mild or moderate hypertension. After a dose-finding phase and a washout period of one week, 10 patients aged fifty to seventy-two-years (median 61.5) were given either a single dose of Dilevalol 60 mg or placebo, and seven days later they underwent the other treatment, according to a single-blind, crossover design. Central hemodynamic measurements were performed by means of M-mode echocardiography, and hemorheologic parameters were evaluated by means of strain-gauge plethysmography. The maximal increase in lower extremity flow at rest had been obtained with the infusion of 60 mg Dilevalol during dose-finding, and so this dose was chosen for the second part of the study. The infusion of Dilevalol significantly increased rest flow and decreased blood viscosity, but the changes in central, parameters were not considered clinically relevant, although statistically significant. Blood pressure decreased without significant changes in heart rate. Thus, the acute administration of Dilevalol reduced blood pressure, without affecting heart rate and central hemodynamics, confirming the vasodilating effect of the drug. A significant improvement was also shown on blood viscosity in these hypertensive patients.
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Affiliation(s)
- F L Pasini
- Institute of Clinical Medicine, University of Siena, Italy
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26
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Laghi Pasini F, Pasqui A, Pieragalli D, Acciavatti A, Saletti M, Guideri F, Galigani C, Di Perri T. Soluble haemoglobin-induced rheological impairment: A role for oxygen free radical formation. Clin Hemorheol Microcirc 1991. [DOI: 10.3233/ch-1991-11513] [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: 11/15/2022]
Affiliation(s)
- F. Laghi Pasini
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - A.L. Pasqui
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - D. Pieragalli
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - A. Acciavatti
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - M. Saletti
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - F. Guideri
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - C. Galigani
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
| | - T. Di Perri
- Istituto di Clinica Medica Generale e Terapia Medica, Università di Siena, Italy
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27
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Domini L, Acciavatti A, Galigani C, Saletti M, De Franco V, Pecchi S, Auteri A, Di Perri T. [The effects of the acute administration of vinburnine on blood rheology, oxygen transport and regional circulation under normal conditions and in hypoxemia. In vivo research]. Recenti Prog Med 1990; 81:716-23. [PMID: 2287808] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Vinburnine has been shown to be effective in avoiding chronic ischaemic tissue injury. Many studies have demonstrated the antihypoxic and oxygenation properties of this drug. In our study we have evaluated in two groups of patients the effects on blood rheology, oxygen transport, regional circulation and ergospirometric data of 40 mg vinburnine infused in a systemic vein. We have selected in the first group 10 patients with low hemoglobin oxygen affinity (p50 28.6 +/- 1.37 mmHg), in the second one 7 patients with normal values (p50 26.6 +/- 0.84 mmHg). In the two groups of the study we evaluated nutritional blood flow by a plethysmographic method, blood gas analysis [correction of hemogasanalitic] parameters in arterial and venous blood, haemoglobin oxygen affinity expressed as p50 and erythrocytic 2,3-DPG, hemorheologic and ergospirometric parameters. Data were evaluated in basal conditions and at the end of the infusion. The improvement of rheological properties, hemodynamic and metabolic data in the two groups of the study seems to confirm the oxyphoretic properties of this drug.
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Affiliation(s)
- L Domini
- Istituto di Patologia speciale medica e Metodologia clinica, Università, Siena
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28
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Acciavatti A, Domini L, Galigani C, Saletti M, Guideri F, Auteri A, Di Perri T. [The effects of vinburnine on the blood rheology parameters and on the oxyhemoglobin dissociation curve and 2,3-diphosphoglycerate. In vitro research]. Recenti Prog Med 1990; 81:710-5. [PMID: 2287807] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The authors investigate the protective action of vinburnine on impairment of blood haemorheology and on metabolic parameters due to in vitro ageing of blood samples. In each sample the following parameters were measured: blood viscosity and filterability, p50 and 2,3-DPG. Vinburnine is able to induce a slight improvement of haemorheological parameters and of p50 compared to controls. After incubation for 4 hr, a reduced impairment of the mentioned parameters was observed in comparison with controls. Some hypotheses are discussed about the mechanisms of action of the drug.
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Affiliation(s)
- A Acciavatti
- Istituto di Patologia speciale medica e Metodologia clinica, Università, Siena
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29
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Auteri A, Saletti M, Falotico N, Verzuri MS. [Effects of mesoglycan on the activation of the blood complement system. In vitro and in vivo research]. Minerva Med 1986; 77:1873-7. [PMID: 2946003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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30
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Auteri A, D'Aniello C, Falotico N, Saletti M, Di Perri T. [Model for acquired immunodeficiency caused by anesthesia and surgical procedures. Effect of treatment with thymopoietin pentapeptide (TP5)]. Recenti Prog Med 1986; 77:423-8. [PMID: 3541085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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31
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Figura N, Rossolini A, Tagliaferri L, Saletti M. "Streptococcus pneumoniae" strains relatively resistant to penicillin G in Italy. Boll Ist Sieroter Milan 1983; 62:115-6. [PMID: 6639770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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32
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Porro M, Fabbiani S, Marsili I, Viti S, Saletti M. Immunoelectrophoretic characterization of the molecular weight polydispersion of polysaccharides in multivalent bacterial capsular polysaccharide vaccines. J Biol Stand 1983; 11:65-74. [PMID: 6833304 DOI: 10.1016/s0092-1157(83)80047-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The molecular weight polydispersion of single antigens present in multivalent bacterial capsular polysaccharide vaccines has been characterized by an immunoelectrophoretic method. Chromatographic effluents from Sepharose gel of bacterial capsular polysaccharide vaccines were tested by fused-rocket immunoelectrophoresis and the distribution coefficient (Kd) of each polysaccharide present in the mixture was calculated. The method appeared to be efficient and reproducible. However, different Kd values were obtained by immunoelectrophoretic and chemical or physical analysis of the chromatographic effluents of each single polysaccharide component. The use of this immunoelectrophoretic procedure was extended to the potency control of multivalent meningococcal and pneumococcal polysaccharide vaccines in order to detect changes in the molecular weight polydispersion of each antigen with time.
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33
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Porro M, Viti S, Antoni G, Saletti M. Ultrasensitive silver-stain method for the detection of proteins in polyacrylamide gels and immunoprecipitates on agarose gels. Anal Biochem 1982; 127:316-21. [PMID: 6187236 DOI: 10.1016/0003-2697(82)90179-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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34
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Carcassi A, Saletti M, Boschi S. [Acute Candida arthritis. Isolation of Candida krusei in a heroin addict]. Minerva Med 1982; 73:2905-9. [PMID: 7133503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Candida arthritis in men is very rare. In most cases Candida albicans is isolated from joints (commonly the knee) of immature infants or of immunodeficient subjects without underlying joint disease; Candida non albicans is isolated from joints of immunodeficient patients with underlying joint disease. A case of Candida arthritis in a heroin addict is described. This is the second report of Candida arthritis in a heroin addict, but it is the first in which Candida krusei has been isolated.
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Figura N, Rossolini A, Tagliaferri L, Saletti M. Prevalence of chemoresistance in recent clinical isolates of "Streptococcus pneumoniae". Ann Sclavo 1982; 24:93-100. [PMID: 7171246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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36
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Figura N, Rossolini A, Tagliaferri L, Saletti M. Type 6A pneumococcus resistant to lincomycin and tetracycline, and highly resistant to erythromycin. Ann Sclavo 1981; 23:486-487. [PMID: 7345981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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37
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Galli MG, Fara GM, Saletti M, Porro M, Ribero ML. [Tests of anti-meningococcal vaccination with A and C group polysaccharide vaccines]. Ann Sclavo 1981; 23:356-66. [PMID: 6803687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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38
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Porro M, Saletti M, Nencioni L, Tagliaferri L, Marsili I. Immunogenic correlation between cross-reacting material (CRM197) produced by a mutant of Corynebacterium diphtheriae and diphtheria toxoid. J Infect Dis 1980; 142:716-24. [PMID: 6780629 DOI: 10.1093/infdis/142.5.716] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The in vivo immunizing potency of diphtheria toxoid and formalin-treated corss-reacting material (CRM197, a nontoxic mutant protein) was compared in guinea pigs. Major antigenic differences between the two untreated proteins were also tested in rats. The results showed that diphtheria toxoid and CRM197 were equally effective immunogens, but only if the latter was treated with formalin in the same concentration (0.7% vol/vol) was that of the toxoid. Formalin treatment rendered the antigens more resistant to enzymatic proteolysis by trypsin in vitro.
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Porro M, Nencioni L, Tagliaferri L, Saletti M. The biological and physico-chemical characteristics of meningococcus polysaccharide group C prepared by two different methods of purification. J Biol Stand 1980; 8:7-13. [PMID: 6772645 DOI: 10.1016/s0092-1157(80)80042-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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40
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Soscia M, Saletti M, Ricci A, Di Gioia M. [Serological response in man to an anticholera vaccine made from killed vibrios and partially purified with aluminium hydroxide]. Ann Sclavo 1975; 17:257-66. [PMID: 1230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The immunizing capability of a new anticholera vaccine (choleric anatoxin + vibrios Ogawa and Inaba) was tested on a group of 113 subjects. The vaccination was carried out with two inoculations of the vaccine, administered a month apart. Testings were taken before the vaccination, before the second inoculation and 10 to 14 days after the vaccination was completed. The determination of the vibriocide antibodies was made following the test-tube method described by Verwey and al., and the research of the antitoxic antibodies following Craig's method, using a live rabbit. Eighty two per cent of the subjects vaccinated had antitoxic antibodies with a varying strength of from 10 to greater than 320 A.U. In all those subjects treated who had previously been vaccinated at the time of the cholera epidemic with traditional vaccine, the geometric average of strength in vibriocide antibodies had increased from 2,810 to 14,700.
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41
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Marcolongo R, Saletti M. A modified assay for the Waaler-Rose test using latex particles coated with rabbit gamma-globulins. Pathol Microbiol (Basel) 1974; 40:275-80. [PMID: 4134575 DOI: 10.1159/000162545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A simplified method is described for the Waaler-Rose reaction, comparing the results obtained with this technique to those found with the standard procedure. The test, which is prepared on a principle identical to that of the Waaler-Rose reaction using latex particles coated with rabbit <i>γ</i> -globulins, has shown a specificity greater than that obtained with the latter reaction; moreover, some other interestingadvantages are an easier and more rapid execution of this technique than the standard Waaler-Rose and a better reproducibility and comparability of results obtained in the various laboratories.
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42
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Saletti M, Ricci A. Experiments with cholera toxin detoxified with glutaraldehyde. Bull World Health Organ 1974; 51:633-9. [PMID: 4219758 PMCID: PMC2366267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Studies on the production, purification, and detoxification of cholera toxin are reported. The toxin was first partially purified with aluminium hydroxide and further purification was effected with Bio Gel A-5m and Sephadex G-75. The toxins were detoxified with glutaraldehyde; the toxoids so obtained, when injected into the skin of rabbits, appeared to have no residual toxicity. All the toxins were immunogenic. The toxoid partially purified with aluminium hydroxide retained most of its immunizing capacity, but the highly purified toxoids did not retain their capacity to stimulate antibody production in rabbits.
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43
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Saletti M, Ricci A. Experiments on monkeys with cholera toxin partially purified and detoxified with formol and glycine. Bull World Health Organ 1974; 51:641-5. [PMID: 4219759 PMCID: PMC2366263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Cholera toxoid partially purified and detoxified with formol and glycine and inoculated in monkeys proved safe. Histological examination revealed no changes in the skin of the animals treated. Blood samples taken from monkeys immunized with 2 doses of toxoid 12 days after the second inoculation revealed appreciable levels of antitoxin in the animals that had received two 100-mug doses of toxoid. The monkeys vaccinated with toxoid, when inoculated with challenge doses of cholera toxin, had the capacity to neutralize the toxin. Detoxification with formol and glycine may be the first step towards the preparation of a highly purified, innocuous, and antigenic cholera toxoid.
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44
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Barnabè R, Mostardini G, Saletti M. [Comparative study of the use of PPD tuberculin with the Mantoux and multipuncture methods (Multi Test)]. Ann Sclavo 1973; 15:71-82. [PMID: 4775019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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45
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Saletti M, Panero C, Genna G, Silli U. [Evaluation of the efficacy of oral typhoid vaccine in animal and man]. Ann Sclavo 1972; 14:611-9. [PMID: 4669415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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46
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Marcolonga R, Saletti M, Ricci A, Marsili C. [The Waaler-Rose test with preserved red corpuscles and with latex particles coated with rabbit gamma globulin]. Quad Sclavo Diagn 1972; 8:692-705. [PMID: 4136166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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47
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Neri P, Botti R, Ricci A, Saletti M, Tarli P. [Preliminary research on proteolysis of the exotoxin of V. cholerae]. Boll Soc Ital Biol Sper 1972; 48:168-71. [PMID: 4626154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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48
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Lenzini L, Saletti M, Barnabè R, Tosi P. [Proceedings: On the formation of tubercular granuloma. Study of the experimental and human pathology]. Ann Sclavo 1971; 13:809-20. [PMID: 5163538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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49
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Panero C, Saletti M. [Mycoses caused by Candida in the case records of the Pediatric Clinic of Siena]. Minerva Pediatr 1970; 22:844-7. [PMID: 5422073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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50
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Panero C, Saletti M, Gorelli L, Corvaglia E. [Research on the incidence of streptococcus pyogenes in the pharynx of patients affected by streptococcidcal infection]. G Mal Infett Parassit 1967; 19:282-4. [PMID: 4884210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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