Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma

BALB/c nude mice 6 weeks old were inoculated with glioma C6 cell-line and the efficacy of the different amount of Etanidazole-discs and Taxol-microspheres was investigated. Poly (D,L-lactic-co-glycolic acid) (PLGA) was used as the main encapsulating polymer and polyethylene glycol was added to incre...

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Main Authors: Naraharisetti, Pavan Kumar, Lee, Timothy Kam Yiu, Wang, Chi-Hwa
Format: Article
Language:English
Published: 2004
Subjects:
Online Access:http://hdl.handle.net/1721.1/7496
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author Naraharisetti, Pavan Kumar
Lee, Timothy Kam Yiu
Wang, Chi-Hwa
author_facet Naraharisetti, Pavan Kumar
Lee, Timothy Kam Yiu
Wang, Chi-Hwa
author_sort Naraharisetti, Pavan Kumar
collection MIT
description BALB/c nude mice 6 weeks old were inoculated with glioma C6 cell-line and the efficacy of the different amount of Etanidazole-discs and Taxol-microspheres was investigated. Poly (D,L-lactic-co-glycolic acid) (PLGA) was used as the main encapsulating polymer and polyethylene glycol was added to increase the porosity. The 1% drug loading microspheres of each drug were produced by spray drying and the discs were obtained by compressing the Etanidazole-microspheres. Intra-tumoral injection followed by irradiation resulted in high systemic dosage and thus systemic toxicity. Tumors grown for 6 days, 9 days and 16 days were implanted with 0.5 mg or 1.0 mg or 1.5 mg of the drug. A radiation dosage of 2 Gy each time for a number of times was given for animals implanted with Etanidazole and no irradiation was given for animals implanted with Taxol. Increasing the number of doses clearly decreased the rate of tumor growth. The increase in the amount of drug on smaller sized tumors controlled the tumor better and there was agglomeration of the microspheres resulting in deviation of release profile of the drug as compared to the in vitro studies. It was observed that 1.0 mg of Taxol given to a tumor grown for 6 days was able to suppress the tumor for a total period of approximately two months and no tumor resurrection was observed during the second month.
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spelling mit-1721.1/74962019-04-09T15:37:14Z Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma Naraharisetti, Pavan Kumar Lee, Timothy Kam Yiu Wang, Chi-Hwa Etanizadole Taxol Glioma tumor suppression BALB/c nude mice 6 weeks old were inoculated with glioma C6 cell-line and the efficacy of the different amount of Etanidazole-discs and Taxol-microspheres was investigated. Poly (D,L-lactic-co-glycolic acid) (PLGA) was used as the main encapsulating polymer and polyethylene glycol was added to increase the porosity. The 1% drug loading microspheres of each drug were produced by spray drying and the discs were obtained by compressing the Etanidazole-microspheres. Intra-tumoral injection followed by irradiation resulted in high systemic dosage and thus systemic toxicity. Tumors grown for 6 days, 9 days and 16 days were implanted with 0.5 mg or 1.0 mg or 1.5 mg of the drug. A radiation dosage of 2 Gy each time for a number of times was given for animals implanted with Etanidazole and no irradiation was given for animals implanted with Taxol. Increasing the number of doses clearly decreased the rate of tumor growth. The increase in the amount of drug on smaller sized tumors controlled the tumor better and there was agglomeration of the microspheres resulting in deviation of release profile of the drug as compared to the in vitro studies. It was observed that 1.0 mg of Taxol given to a tumor grown for 6 days was able to suppress the tumor for a total period of approximately two months and no tumor resurrection was observed during the second month. Singapore-MIT Alliance (SMA) 2004-12-16T05:52:53Z 2004-12-16T05:52:53Z 2005-01 Article http://hdl.handle.net/1721.1/7496 en Molecular Engineering of Biological and Chemical Systems (MEBCS); 12110 bytes application/pdf application/pdf
spellingShingle Etanizadole
Taxol
Glioma
tumor suppression
Naraharisetti, Pavan Kumar
Lee, Timothy Kam Yiu
Wang, Chi-Hwa
Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma
title Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma
title_full Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma
title_fullStr Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma
title_full_unstemmed Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma
title_short Subcutaneous study on the controlled release of Etanidazole and Taxol for the treatment of Glioma
title_sort subcutaneous study on the controlled release of etanidazole and taxol for the treatment of glioma
topic Etanizadole
Taxol
Glioma
tumor suppression
url http://hdl.handle.net/1721.1/7496
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AT wangchihwa subcutaneousstudyonthecontrolledreleaseofetanidazoleandtaxolforthetreatmentofglioma