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Progastrin is a pro-hormone that, in physiological conditions, is maturated in gastrin in G cells of the stomach. The role of the gastrin is to stimulate the secretion of gastric acids during digestion. It is also important for the regulation of cell growth of the gastric mucosal. In a healthy person, progastrin is not detectable in the peripheral blood. However, progastrin is abnormally released in the blood of patients with different cancers (colorectal, gastric, ovarian, breast, cervix uterus, melanoma…) The gene GAST coding for progastrin is a direct target gene of the WNT/ß-catenin oncogenic pathway. The activation of this oncogenic pathway is an early event in cancer development. Chronic activation of the WNT/ß-catenin oncogenic pathway occurs in almost all human solid tumors and is a central mechanism in cancer biology that induces cellular proliferation, blocking of differentiation leading to primary tumor growth and metastasis formation. Progastrin measured in the peripheral blood of patients on treatments, could be a new powerful marker for diagnosis and prognosis at different stages.
The investigators intend to use the Second-generation sequencing（NGS）and MiniPDX drug sensitivity models to guide the treatment decision-making for patients who were resistant to abiraterone, enzalutamide or other new second-generation anti-androgenic drugs. In order to develop precise personalized treatment plans for patients and extent their lifetimes.
The commercialization of MRI fusion biopsies has resulted in a dramatic increase in the use of MRI imaging for prostate cancer. How best to use MRI in the initial prostate biopsy setting given the availability of validated prostate cancer early detection markers is uncertain.This study will allow investigators to determine if prostate MRI is superior to validated panel of laboratory biomarkers (e.g. PCA3, PSA and TMPRSS2:ERG) in the initial biopsy setting.
Prostate biopsy was offered to 47 consecutive patients with prostate-specific antigen (PSA) over 4 ng/dl or suspicious digital rectal examination (DRE) of whom 16 had undergone a biopsy. Comprehensive validated questionnaires at TIME 0 (pre-biopsy), TIME 1 (before diagnosis, 20 days after biopsy) and TIME 2 (after diagnosis, 40 days after biopsy) accessed patients' erectile (IIEF-5) and voiding (IPSS) functions, Beck scales measured anxiety (BAI), hopelessness (BHS) and depression (BDI), added to the emotional thermometers including five visual analog scales for distress, anxiety, depression, anger and need for help. Mann-Whitney or Friedman tests were obtained among times and studied variables.
This study utilizes advanced imaging techniques (mpMRI prostate scan) to select and stratify patients for two different radiotherapy regimens based on the presence/absence of identifiable intraprostatic lesions. In patients without identifiable prostate cancer lesions, SBRT to the prostate in 5 sessions (fractions) will be administered. In patients with MRI-identified lesion(s), pelvic IMRT in 25 fractions will be administered followed by an SBRT prostate boost while simultaneously treating the prostate cancer lesion(s) to a higher dose in 3 fractions.
This research study is being offered to those patients who have already received radiation therapy and who are receiving long-term hormonal therapy for their prostate cancer and whose PSA remains detectable (greater than 0.1) despite having received at least 6, but no more than 8 months of hormonal therapy. The name of the study drugs involved in this study is: - LHRHA (luteinizing hormone-releasing hormone agonist or antagonist) - Abiraterone Acetate - Apalutamide - Prednisone
This study evaluates whether exercise can reduce treatment-related adverse effects in prostate cancer patients initiating androgen deprivation therapy. Half of recruited participants completed a 3-month exercise intervention, while the other half did not perform any supervised exercise. It was anticipated that exercise would have a positive effect on body composition, cardiorespiratory fitness and quality of life.
This study will replicate/validate the risk prediction model developed for the Comparative Effectiveness Analysis of Surgery and Radiation (CEASAR) study in a more diverse patient population to assess generalizability of the model as well as evaluate the relative contribution of the Decipher Prostate Cancer Test and ProstateNext Test from Ambry Genetics, to the risk prediction model for estimating treatment outcomes, and thereby improve personalization of treatment options.
This is a prospective study to determine if the use of curcumin randomized against placebo will reduce cancer progression in patients with prostate cancer undergoing active surveillance.
Imaging and staging of prostate cancer is critical for surgical and treatment planning. In this protocol we will image patients with suspected metastatic prostate cancer using 11C-Choline PET and Gallium-68 labeled HBED-CC PSMA (more commonly called 68Ga-PSMA-11) in order to demonstrate their utility in detecting prostate cancer.