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Medium-term culture of primary oral squamous cell carcinoma in a three- dimensional model: effects on cell survival following topical 5-fluororacile delivery by drug-loaded matrix tablets

Medium-term culture of primary oral squamous cell carcinoma in a three- dimensional model: effects on cell survival following topical 5-fluororacile delivery by drug-loaded matrix tablets
Medium-term culture of primary oral squamous cell carcinoma in a three- dimensional model: effects on cell survival following topical 5-fluororacile delivery by drug-loaded matrix tablets
Since the activity of several conventional anticancer drugs is restricted by resistance mechanisms and dose-limiting side-effects, the design of formulations for local application on malignant lesions seems to be an efficient and promising drug delivery approach. In this study, the effect of locally applied 5-FU on cell death was evaluated both in a SCC4/HEK001 model and in a newly proposed 3D outgrowth model of oral squamous cell carcinoma (OSCC). Initially, the optimal drug dose was established by delivery of solutions containing different amounts of 5-FU. The solution containing 1% (w/v) of 5-FU resulted effective in inducing cell death with complete eradication of cell colonies. Buccal tablets were designed to deliver 5-FU locoregionally to the cancer lesions of the oral cavity. Tablets were prepared using a drug loaded matrix of acrylic/methacrylic acid copolymer containing 1% (w/w) of 5-FU and applied on 3D outgrowths. The drug release from tablets appeared to be sufficient to induce cell death as confirmed by transmission electron microscopy and enzymatic assay (TUNEL). After 120 h of treatment, when about 90% of the drug had been discharged from the tablets into the culture environment, 5-FU caused loss of cell-cell communications and apoptotic cell death. After 192 h, a complete disaggregation of the 3D oral outgrowths and the death of all the cells was observed. Buccal matrix tablets could be considered a promising new approach to the locoregional treatment of OSCC. Risks of systemic toxicity are avoided since very low drug doses are delivered.
5411-5420
Campisi, Giuseppina
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Giannola, Libero Italo
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Fucarino, Alberto
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Marino Gammazza, Antonella
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Pitruzzella, Alessandro
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Marciano, Vito
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De Caro, Viviana
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Siragusa, Maria Gabriella
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Giandalia, Giulia
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Compilato, Domenico
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Holgate, Stephen T.
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Davies, Donna E.
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Farina, Felicia
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Zummo, Giovanni
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Paderni, Carlo
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Bucchieri, Fabio
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Campisi, Giuseppina
2ebe7405-f794-4900-9469-4f8d1badce0e
Giannola, Libero Italo
bb1653ba-27fc-4ffe-b8f2-100dc42c4409
Fucarino, Alberto
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Marino Gammazza, Antonella
b8683acd-7d10-4e5a-9224-ff7b283d7a65
Pitruzzella, Alessandro
378be3bd-b7fc-4615-bd90-7a3753077a46
Marciano, Vito
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De Caro, Viviana
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Siragusa, Maria Gabriella
48df4a44-7b8a-4c0a-a38e-6d2fd13c94cd
Giandalia, Giulia
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Compilato, Domenico
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Holgate, Stephen T.
2e7c17a9-6796-436e-8772-1fe6d2ac5edc
Davies, Donna E.
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Farina, Felicia
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Zummo, Giovanni
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Paderni, Carlo
e03dd4ce-f029-43b1-bc5b-97036a9c8395
Bucchieri, Fabio
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Campisi, Giuseppina, Giannola, Libero Italo, Fucarino, Alberto, Marino Gammazza, Antonella, Pitruzzella, Alessandro, Marciano, Vito, De Caro, Viviana, Siragusa, Maria Gabriella, Giandalia, Giulia, Compilato, Domenico, Holgate, Stephen T., Davies, Donna E., Farina, Felicia, Zummo, Giovanni, Paderni, Carlo and Bucchieri, Fabio (2012) Medium-term culture of primary oral squamous cell carcinoma in a three- dimensional model: effects on cell survival following topical 5-fluororacile delivery by drug-loaded matrix tablets. Current Pharmaceutical Design, 18 (34), 5411-5420. (doi:10.2174/138161212803307536). (PMID:22632387)

Record type: Article

Abstract

Since the activity of several conventional anticancer drugs is restricted by resistance mechanisms and dose-limiting side-effects, the design of formulations for local application on malignant lesions seems to be an efficient and promising drug delivery approach. In this study, the effect of locally applied 5-FU on cell death was evaluated both in a SCC4/HEK001 model and in a newly proposed 3D outgrowth model of oral squamous cell carcinoma (OSCC). Initially, the optimal drug dose was established by delivery of solutions containing different amounts of 5-FU. The solution containing 1% (w/v) of 5-FU resulted effective in inducing cell death with complete eradication of cell colonies. Buccal tablets were designed to deliver 5-FU locoregionally to the cancer lesions of the oral cavity. Tablets were prepared using a drug loaded matrix of acrylic/methacrylic acid copolymer containing 1% (w/w) of 5-FU and applied on 3D outgrowths. The drug release from tablets appeared to be sufficient to induce cell death as confirmed by transmission electron microscopy and enzymatic assay (TUNEL). After 120 h of treatment, when about 90% of the drug had been discharged from the tablets into the culture environment, 5-FU caused loss of cell-cell communications and apoptotic cell death. After 192 h, a complete disaggregation of the 3D oral outgrowths and the death of all the cells was observed. Buccal matrix tablets could be considered a promising new approach to the locoregional treatment of OSCC. Risks of systemic toxicity are avoided since very low drug doses are delivered.

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Published date: 2012
Organisations: Clinical & Experimental Sciences

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Local EPrints ID: 359871
URI: https://eprints.soton.ac.uk/id/eprint/359871
PURE UUID: b59d38d7-1b3f-44c0-8234-88ff9a4dea8a

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Date deposited: 15 Nov 2013 13:59
Last modified: 18 Jul 2017 03:17

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Contributors

Author: Giuseppina Campisi
Author: Libero Italo Giannola
Author: Alberto Fucarino
Author: Antonella Marino Gammazza
Author: Alessandro Pitruzzella
Author: Vito Marciano
Author: Viviana De Caro
Author: Maria Gabriella Siragusa
Author: Giulia Giandalia
Author: Domenico Compilato
Author: Donna E. Davies
Author: Felicia Farina
Author: Giovanni Zummo
Author: Carlo Paderni
Author: Fabio Bucchieri

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