In the present paper we describe the production and characterization of specialized delivery systems for camptothecin, namely liposomes, micellar solutions and microemulsion. For instance, liposomes were prepared by reverse phase evaporation technique followed by extrusion through polycarbonate filters. Liposomes were characterized in term of dimensions, morphology and encapsulation efficacy. All the formulations were designed firstly to increase the solubility of camptothecin in aqueous environment and secondly to reduce the toxicity problems related to the administration of this drug. The analysis of their in vitro antiproliferative activity on cultured human leukemic K562 cells demonstrated that liposomes, micellar solutions and microemulsion containing camptothecin exert similar or slightly enhanced effect as compared to that shown by the free drug. Based on these results, the specialized delivery systems here proposed typify an interesting starting point for a future use in experimental therapy.

Formulation study for the antitumor drug camptothecin: liposomes, micellar solutions and a microemulsion

CORTESI, Rita;ESPOSITO, Elisabetta;MENEGATTI, Enea;NASTRUZZI, Claudio
1997

Abstract

In the present paper we describe the production and characterization of specialized delivery systems for camptothecin, namely liposomes, micellar solutions and microemulsion. For instance, liposomes were prepared by reverse phase evaporation technique followed by extrusion through polycarbonate filters. Liposomes were characterized in term of dimensions, morphology and encapsulation efficacy. All the formulations were designed firstly to increase the solubility of camptothecin in aqueous environment and secondly to reduce the toxicity problems related to the administration of this drug. The analysis of their in vitro antiproliferative activity on cultured human leukemic K562 cells demonstrated that liposomes, micellar solutions and microemulsion containing camptothecin exert similar or slightly enhanced effect as compared to that shown by the free drug. Based on these results, the specialized delivery systems here proposed typify an interesting starting point for a future use in experimental therapy.
1997
Cortesi, Rita; Esposito, Elisabetta; Maietti, A; Menegatti, Enea; Nastruzzi, Claudio
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1200265
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 115
  • ???jsp.display-item.citation.isi??? 101
social impact