Phillip J. Stevens

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The anticancer drug paclitaxel has poor aqueous solubility and is difficult to formulate in a lipid-based formulation due to its limited lipid solubility. Paclitaxel-7-carbonyl-cholesterol (Tax-Chol), a prodrug of paclitaxel with increased lipophilicity, was therefore synthesized and evaluated for incorporation into a lipid nanoparticle (LN) formulation,(More)
Breast tissues from 59 patients were immunohistologically studied for transferrin and transferrin receptors. None of the 8 normal breasts or 22 benign mastopathies, and only 1 of 7 fibroadenomas were reactive for transferrin, but 16 (72.7%) of 22 carcinomas were positive and parallel sections showed histopathologically that the rective areas were confined(More)
Biopsy specimens from the beds of leg ulcers of fifteen patients were obtained before and after the application for 5 days of cultured human amnion. After amnion application there was considerable granulation tissue in the ulcer bed and microscopical evidence of thinned connective tissues, vessel development, more compact resolution of vascular basement(More)
PURPOSE This study was aimed at the formulation and an in vitro evaluation of folate receptor (FR)-targeted emulsions as carriers for the lipophilic drug paclitaxel, in FR-overexpressing tumor cells. MATERIALS AND METHODS FR-targeted paclitaxel emulsions (< 100 nm) composed of Tween-80:triolein:cholesterol:oleic acid:egg-phosphatidylcholine (EPC)(More)
PURPOSE This study was aimed at the synthesis, formulation and in vitro evaluation of folate receptor (FR)-targeted solid-lipid nanoparticles (SLNs) as a carrier for a lipophilic derivative of the photosensitizer hematoporphyrin (Hp), in FR-overexpressing tumor cells. MATERIALS AND METHODS FR-targeted hematoporphyrin-stearylamine (HpSa) SLN composed of(More)
BACKGROUND The folate receptor is amplified in a variety of human tumors including over 90% of ovarian carcinoma. FR-targeted liposomes have previously been used by us to selectively deliver entrapped boron-containing compounds to tumor cells for neutron capture therapy (NCT). In the present study we have evaluated the delivery of Na3(B20H17NH3), which has(More)
Melperone is an atypical antipsychotic agent that has shown a wide spectrum of neuroleptic properties, particularly effective in the treatment of senile dementia and Parkinson's-associated psychosis, and is marketed in Europe as an immediate-release (IR) tablet and syrup. An orally disintegrating tablet (ODT) dosage form would be advantageous for patients(More)
PURPOSE Photodynamic therapy (PDT) is an emerging, minimally invasive therapy for prostate cancer that depends on the sequestration of a photosensitizing drug within targeted tissue. The photosensitizer is subsequently activated by light of a specific wavelength, resulting in destruction of the targeted tissue. Successful treatment requires knowledge of the(More)
BACKGROUND Doxorubicin can be loaded into preformed liposome by remote loading. Lyophilization of liposomes results in particle size increase and content leakage. Cryoprotectants have been used to improve the stability of liposomal formulations during lyophilization. Here we have developed a formulation kit for liposomal doxorubicin based on lyophilized(More)