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  • Title: Paclitaxel liposome aerosol treatment induces inhibition of pulmonary metastases in murine renal carcinoma model.
    Author: Koshkina NV, Waldrep JC, Roberts LE, Golunski E, Melton S, Knight V.
    Journal: Clin Cancer Res; 2001 Oct; 7(10):3258-62. PubMed ID: 11595722.
    Abstract:
    The present studies were undertaken to evaluate the pulmonary pharmacokinetics and therapeutic efficacy of paclitaxel (PTX) administered by aerosol. PTX was encapsulated into dilauroylphosphatidylcholine liposomal formulations (PTX-DLPC). The deposition and clearance of PTX-DLPC in the lungs administered by aerosol or i.v. at comparative doses was performed, and PTX was quantitatively determined in tissue extracts by high-performance liquid chromatography analysis. The murine renal carcinoma (Renca) pulmonary metastases model was used to determine the therapeutic effect of drug formulation administered by aerosol. PTX-DLPC aerosols were generated with the Aero-Mist jet nebulizer (cis-USA). The most effective schedule of treatment was when mice inhaled the drug for 30 min 3 days per week. There was a significant reduction of the lung weights and reduced number of visible tumor foci on the lung surfaces of mice treated with PTX aerosol (P < 0.004 and P < 0.01, respectively) compared with control groups. Inhalation of PTX-DLPC also led to prolonged survival in mice inoculated with Renca cells. The results of the present studies demonstrate the therapeutic potential of aerosol technology for lung cancer treatment.
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