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Published on: June 29, 2013
Ex vivo intra-arterial infusion of microencapsulated mitomycin C into dog kidney
The Tohoku Journal of Experimental Medicine
|January 1, 1979
Abstract:
Microencapsulated Mitomycin C with ethylcellulose was infused into isolated dog kidneys through the renal artery. The capsules were lodged mainly at cortico-medullary junction, where the drug was released from the capsules. Vascularity of kidney was reduced moderately.
Insights
Microencapsulated Mitomycin C, a chemotherapy drug, was delivered to isolated dog kidneys. The drug was released in the kidney, moderately reducing blood vessel supply.
Area of Science:
- Nephrology
- Pharmacology
- Biomaterials Science
Background:
- Mitomycin C is an alkylating agent used in chemotherapy.
- Drug delivery systems aim to improve therapeutic efficacy and reduce side effects.
- Microencapsulation offers a method for controlled drug release.
Purpose of the Study:
- To evaluate the feasibility of microencapsulated Mitomycin C delivery to isolated dog kidneys.
- To assess the release characteristics and localization of the microcapsules within the kidney.
- To determine the impact of this delivery method on renal vascularity.
Main Methods:
- Isolated dog kidneys were perfused via the renal artery.
- Microcapsules containing Mitomycin C and ethylcellulose were infused.
- Capsule distribution and drug release sites were examined.
- Changes in renal vascularity were assessed.
Main Results:
- Microencapsulated Mitomycin C was successfully infused into the renal artery.
- Capsules predominantly localized at the cortico-medullary junction.
- Drug release occurred at the targeted site.
- A moderate reduction in kidney vascularity was observed.
Conclusions:
- Ethylcellulose microencapsulation is a viable method for delivering Mitomycin C to canine kidneys.
- The cortico-medullary junction is a key site for drug release and potential therapeutic action.
- This approach may modulate renal vascularity, suggesting potential applications in specific renal therapies.

