61 results about "Prostatic epithelium" patented technology

The invention provides a novel prostate cell-surface antigen, designated Prostate Stem Cell Antigen (PSCA), which is widely over-expressed across all stages of prostate cancer, including high grade prostatic intraepithelial neoplasia (PIN), androgen-dependent and androgen-independent prostate tumors.

Objective methods for detecting and diagnosing prostate cancer (PRC) or prostatic intraepithelial neoplasia (PIN) are described herein. In one embodiment, the diagnostic method involves the determining an expression level of PRC-associated gene that discriminate between PRC or PIN and nomal cell. The present invention further provides methods of screening for therapeutic agents useful in the treatment of either or both of PRC and PIN, methods of treating either or both of PRC and PIN and method of vaccinating a subject against either or both of PRC and PIN.

The present invention is directed to sensitive and specific methods and kits for the detection of prostate cancer in a patient. The invention uses RT-PCR to detect the expression or change in expression of PSA in epithelial cells enriched from whole blood. The methods and kits on the invention represent a a significant improvement over previous methods of CaP diagnosis. According to one embodiment, prostate epithelial cells are isolated from blood and the RNA subjected to RT-PCR. The resulting cDNA is subjected to traditional PCR amplification with primers able to distinguish between the genomic copy of the gene and the cDNA copy resulting from CaP gene expression. This method provides an assay which is more sensitive, specific and reproducible as compared to conventional methods. Results disclosed herein demonstrate a correlation between the presence of PSA-expressing prostate epithelial cells with cancer recurrence which provides a diagnostic tool for the early detection of prostate disease.

The invention provides a method for treatment or prophylaxis of benign prostatic hyperplasia by administration of an agent that interferes with energy metabolism, particularly the production of ATP and NADH/NADPH, in prostate epithelial cells.

The present invention is directed to the use of antibodies or binding portions thereof, probes, ligands, or other biological agents which either recognize an extracellular domain of prostate specific membrane antigen or bind to and are internalized with prostate specific membrane antigen. These biological agents can be labeled and used for detection of cancerous tissues, particularly cancerous tissues proximate to or containing vascular endothelial cells, which express an extracellular domain of prostate specific membrane antigen. The labeled biological agents can also be used to detect normal, benign hyperplastic, and cancerous prostate epithelial cells or portions thereof. They also can be used alone or bound to a substance effective to ablate or kill such cells as a therapy for prostate or other cancers. Also disclosed are four hybridoma cell lines, each of which produces a monoclonal antibody recognizing extracellular domains of prostate specific membrane antigens of normal, benign hyperplastic, and cancerous prostate epithelial cells or portions thereof.

The invention includes prognostic and diagnostic methods and compositions for characterizing disease states, biopsy samples, biological samples, cells, and tissues. In various embodiments of the invention, a bioassay may be used to analyze the activity of the androgen receptor (AR) in human prostate epithelial (HPE) cells derived from patient samples. The activity of the AR may be used to characterize the sample in regard to AR activity. Characterization of a sample may be useful in classify the sample and/or in determining a treatment regiment. In other embodiments, a sample may be compared to other known samples to identify other distinguishing characteristics, such as disease markers, and/or determine a treatment regiment based on the comparison of samples.

Disclosed are compositions and methods for diagnosing, preventing, and treating prostate cancer and prostate intraepithelial neoplasia (PIN).

Prostasin protein has been found to be a useful marker for determination of the invasiveness of and as a means to treat human carcinomas. Using RT-PCR and western blot analyses, prostasin protein and mRNA expression were found in normal human prostate epithelial cells and the human prostate cancer cell line LNCaP, but not in the highly invasive human prostate cancer cell lines DU-145 and PC-3. Imunohistochemistry studies of human prostate cancer specimens revealed a down-regulation of prostasin in high-grade tumors. Using RT-PCR and western blot analyses, prostasin protein and mRNA expression were found in a non-invasive human breast cancer cell line, MCF-7, while invasive human breast cancer cell lines MDA-MB-231 and MDA-MB-435s were found not to express either the prostasin protein or the mRNA. A non-invasive human breast cancer cell line, MDA-MB-453, was shown to express prostasin mRNA but not prostasin protein. Transfection of DU-145 and PC-3 cells with a full-length human prostasin cDNA restored prostasin expression and reduced the in vitro invasiveness by 68% and 42%, respectively. Transfection of MDA-MB-231 and MDA-MB-435s cells with a full-length human prostasin cDNA restored prostasin expression and reduced the in vitro invasiveness by 50% for either cell line. The prostasin gene promoter region was found to be hypermethylated at specific sites in invasive cancer cells.

This invention provides nucleic acids containing sequences from a TCRγ transcript from prostate epithelial cells and many breast cancer cells and a T-cell receptor gamma Alternate Reading frame Protein (“TARP”) expressed from the translation of those sequences. Vaccines made from TARP are useful in raising immune responses to cells in which the protein is expressed, including prostate cancer cells and cells of many breast cancers. The invention also provides methods for diagnosing the presence of prostate cancer and TARP-expressing breast cancers, as well as methods of administering TARP and nucleic acids encoding TARP to subjects.

This invention provides organic biomolecule markers (e.g., proteins) useful for differentiating prostate cancer, prostate intraepithelial neoplasia or benign prostate hyperplasia, from a negative diagnosis (i.e. normal and benign prostate epithelial cells).

Liposomes comprising an FKBP52 targeting agent (FTA) are disclosed. Pharmaceutical compositions comprising an FTA, a solvent, and a surfactant are disclosed. Pharmaceutical compositions comprising a cyclodextrin and/or a derivative thereof and an FTA are also disclosed. Method of detecting one or more compounds in a sample by liquid chromatography/tandem mass spectrometry (LC/MS/MS), methods of treating or preventing cancer, benign prostatic hyperplasia (BPH), prostatic intraepithelial neoplasia (PIN), prostatitis, enlarged prostate, or insulin-independent diabetes, and methods of inhibiting spermatogenesis or fertilized oocyte implantation in a mammal are also provided.

The invention provides a method for treatment or prophylaxis of benign prostatic hyperplasia by administration of an agent that interferes with energy metabolism, particularly the production of ATP and NADH/NADPH, in prostate epithelial cells.

Proteins specific for prostate epithelial cells, normal or neoplastic, are identified and used for diagnosis, development of antibodies, and for evaluating drugs that react with the neoplastic specific proteins. Affinity based probes are used that react specifically with the active site to provide a measure of the enzyme activity of the cells. Prostate epithelial neoplastic cells can be used in screening candidate drugs for their effect in changing the proteome profile as to the serine-threonine hydrolase enzymes, using the affinity based probes for determining the profile.

A method and composition for preventing prostate cancer and/or reducing PSA levels and/or alleviating the symptoms of BPH (Benign Prostatic Hyperplasia) or PIN (prostatic intraepithelial neoplasia) by administration of an effective amount of a mixture of flavopereirine and alstonine. A method and composition for treating low-grade prostate cancer and preventing the onset of metastatic disease and/or reducing the doubling time of PSA levels in men with positive biopsies showing relatively low Gleason scores and morphologies characteristic of non-invasive, slow-progressing prostate cancer. The flavopereirine and alstonine can be in the form of natural extracts derived from Pao Pereira and Rauwolfia Vomitoria, respectively. Alternatively, these two active compounds can be administered in purified form. The composition can be in included in a kit along with instructions for use in a treatment regimen.