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Casillo A, Di Guida R, Cavasso D, Stellavato A, Rai D, Yokoyama F, Kamasaka K, Kawamoto J, Kurihara T, Schiraldi C, Kulkarni S, Paduano L, Corsaro MM. Polysaccharide corona: The acetyl-rich envelope wraps the extracellular membrane vesicles and the cells of Shewanella vesiculosa providing adhesiveness. Carbohydr Polym 2022; 297:120036. [DOI: 10.1016/j.carbpol.2022.120036] [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: 07/05/2022] [Revised: 08/11/2022] [Accepted: 08/22/2022] [Indexed: 11/02/2022]
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Di Guida R, Casillo A, Stellavato A, Kawai S, Ogawa T, Di Meo C, Kawamoto J, Kurihara T, Schiraldi C, Corsaro MM. Capsular polysaccharide from a fish-gut bacterium induces/promotes apoptosis of colon cancer cells in vitro through Caspases' pathway activation. Carbohydr Polym 2022; 278:118908. [PMID: 34973729 DOI: 10.1016/j.carbpol.2021.118908] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 08/04/2021] [Revised: 11/04/2021] [Accepted: 11/13/2021] [Indexed: 11/02/2022]
Abstract
Among the widespread malignancies colorectal cancer is the most lethal. Treatments of this malignant tumor include surgery for lesions and metastases, radiotherapy, immunotherapy, and chemotherapy. Nevertheless, novel therapies to reduce morbidity and mortality are demanding. Natural products, such as polysaccharides, can be a valuable alternative to sometimes very toxic chemotherapeutical agents, also because they are biocompatible and biodegradable biomaterials. Microbial polysaccharides have been demonstrated to fulfill this requirement. In this paper, the results about the structure and the activity of a capsular polysaccharide isolated from the psychrotroph Pseudoalteromonas nigrifaciens Sq02-Rifr, newly isolated from the fish intestine, have been described. The characterization has been obtained by spectroscopic and chemical methods, and it is supported by the bioinformatic analysis. The polymer activates Caspases 3 and 9 on colon cancer cells CaCo-2 and HCT-116, indicating a promising antitumor effect, and suggesting a potential capacity of CPS to induce apoptosis.
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Affiliation(s)
- Rossella Di Guida
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy.
| | - Angela Casillo
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy.
| | - Antonietta Stellavato
- Department of Experimental Medicine, Section of Biotechnology Medical Histology and Molecular Biology, University of Campania "Luigi Vanvitelli", via L. De Crecchio n 7, 80138 Naples, Italy.
| | - Soichiro Kawai
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Takuya Ogawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Celeste Di Meo
- Department of Experimental Medicine, Section of Biotechnology Medical Histology and Molecular Biology, University of Campania "Luigi Vanvitelli", via L. De Crecchio n 7, 80138 Naples, Italy.
| | - Jun Kawamoto
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Tatsuo Kurihara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Chiara Schiraldi
- Department of Experimental Medicine, Section of Biotechnology Medical Histology and Molecular Biology, University of Campania "Luigi Vanvitelli", via L. De Crecchio n 7, 80138 Naples, Italy.
| | - Maria Michela Corsaro
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy.
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Di Guida R, Casillo A, Corsaro MM. O-specific polysaccharide structure isolated from the LPS of the Antarctic bacterium Pseudomonas ANT_J38B. Carbohydr Res 2020; 497:108125. [PMID: 32905875 DOI: 10.1016/j.carres.2020.108125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/27/2020] [Accepted: 08/06/2020] [Indexed: 10/23/2022]
Abstract
Pseudomonas ANT_J38B is a Gram-negative bacterium isolated from an Antarctic island. LPS was extracted using the phenol/chloroform/petroleum ether method. A mild acid hydrolysis followed by a gel filtration purification afforded the O-chain. The polysaccharide was characterized by means of chemical analyses and NMR spectroscopy. The O-chain displays a disaccharide repeating unit with the following backbone: →4)-α-l-GulpNAc3OAcAN-(1 →3)-β-d-QuipNAc-(1→ .
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Affiliation(s)
- Rossella Di Guida
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126, Naples, Italy.
| | - Angela Casillo
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126, Naples, Italy.
| | - Maria Michela Corsaro
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126, Naples, Italy.
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Esposito R, Raucci U, Cucciolito ME, Di Guida R, Scamardella C, Rega N, Ruffo F. Iron(III) Complexes for Highly Efficient and Sustainable Ketalization of Glycerol: A Combined Experimental and Theoretical Study. ACS Omega 2019; 4:688-698. [PMID: 31459356 PMCID: PMC6648856 DOI: 10.1021/acsomega.8b02546] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 12/24/2018] [Indexed: 05/06/2023]
Abstract
The growing production of biodiesel as a promising alternative and renewable fuel led as the main problem the dramatic increase of its by-product: glycerol. Different strategies for glycerol derivatization have been reported so far, some more efficient or sustainable than others. Herein, we report a very promising and eco-friendly transformation of glycerol in nontoxic solvents and chemicals (i.e., solketal, ketals), proposing three new families of Fe(III) compounds capable of catalysing glycerol acetalization with unpublished turn over frequencies (TOFs), and adhering most of the principles of green chemistry. The comparison between the activity of complexes of formula [FeCl3(1-R)] (1-R = substituted pyridinimine), [FeCl(2-R,R')] (2-R,R' = substituted O,O'-deprotonated salens) and their corresponding simple salts reveals that the former are extremely convenient because they are able to promote solketal formation with excellent TOFs, up to 105 h-1. Satisfactory performances were shown with respect to the entire range of substrates, with results being competitive to those reported in the literature so far. Moreover, the experimental activity was supported by an accurate and complete ab initio study, which disclosed the fundamental role of iron(III) as Lewis acid in promoting the catalytic activity. The unprecedented high activity and the low loading of the catalyst, combined with the great availability and the good eco-toxicological profile of iron, foster future applications of this catalytic process for the sustainable transformation of an abundant by-product in a variety of chemicals.
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Affiliation(s)
- Roberto Esposito
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- Consorzio
Interuniversitario di Reattività Chimica e Catalisi, via Celso Ulpiani 27, 70126 Bari, Italy
| | - Umberto Raucci
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
| | - Maria E. Cucciolito
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- Consorzio
Interuniversitario di Reattività Chimica e Catalisi, via Celso Ulpiani 27, 70126 Bari, Italy
| | - Rossella Di Guida
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- Consorzio
Interuniversitario di Reattività Chimica e Catalisi, via Celso Ulpiani 27, 70126 Bari, Italy
| | - Carmen Scamardella
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- Consorzio
Interuniversitario di Reattività Chimica e Catalisi, via Celso Ulpiani 27, 70126 Bari, Italy
| | - Nadia Rega
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- Interdisciplinary
Research Centre on Biomaterials (CRIB), Universitá degli Studi di Napoli Federico II, Piazzale Tecchio 80, I-80125 Napoli, Italy
- E-mail: (N.R.)
| | - Francesco Ruffo
- Dipartimento
di Scienze Chimiche, Università degli
Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, via Cintia 21, 80126 Napoli, Italy
- Consorzio
Interuniversitario di Reattività Chimica e Catalisi, via Celso Ulpiani 27, 70126 Bari, Italy
- E-mail: (F.R.)
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Casillo A, Di Guida R, Carillo S, Chen C, Kamasaka K, Kawamoto J, Kurihara T, Corsaro MM. Structural Elucidation of a Novel Lipooligosaccharide from the Antarctic Bacterium OMVs Producer Shewanella sp. HM13. Mar Drugs 2019; 17:E34. [PMID: 30626008 PMCID: PMC6357163 DOI: 10.3390/md17010034] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/23/2018] [Accepted: 01/03/2019] [Indexed: 01/08/2023] Open
Abstract
Shewanella sp. HM13 is a cold-adapted Gram-negative bacterium isolated from the intestine of a horse mackerel. It produces a large amount of outer membrane vesicles (OMVs), which are particles released in the medium where the bacterium is cultured. This strain biosynthesizes a single major cargo protein in the OMVs, a fact that makes Shewanella sp. HM13 a good candidate for the production of extracellular recombinant proteins. Therefore, the structural characterization of the components of the vesicles, such as lipopolysaccharides, takes on a fundamental role for understanding the mechanism of biogenesis of the OMVs and their applications. The aim of this study was to investigate the structure of the oligosaccharide (OS) isolated from Shewanella sp. HM13 cells as the first step for a comparison with that from the vesicles. The lipooligosaccharide (LOS) was isolated from dry cells, purified, and hydrolyzed by alkaline treatment. The obtained OS was analyzed completely, and the composition of fatty acids was obtained by chemical methods. In particular, the OS was investigated in detail by ¹H and 13C NMR spectroscopy and MALDI-TOF mass spectrometry. The oligosaccharide was characterized by the presence of a residue of 8-amino-3,8-dideoxy-manno-oct-2-ulosonic acid (Kdo8N) and of a d,d-heptose, with both residues being identified in other oligosaccharides from Shewanella species.
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Affiliation(s)
- Angela Casillo
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy.
| | - Rossella Di Guida
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy.
| | - Sara Carillo
- Characterisation and Comparability Laboratory, National Institute for Bioprocessing Research and Training. Fosters Avenue, Mount Merrion. Blackrock, Co., A94 X099 Dublin, Ireland.
| | - Chen Chen
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Kouhei Kamasaka
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Jun Kawamoto
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Tatsuo Kurihara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Maria Michela Corsaro
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cintia 4, 80126 Naples, Italy.
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