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Prostate Cancer research and development Research

16:59 EDT 21st May 2018 | BioPortfolio

History of Non-Muscle-Invasive Bladder Cancer May Have a Worse Prognostic Impact in cT2-4aN0M0 Bladder Cancer Patients Treated With Radical Cystectomy.

To investigate whether a history of non-muscle-invasive bladder cancer (NMIBC) plays a prognostic role in patients with muscle-invasive bladder cancer (MIBC) treated with radical cystectomy in the era when neoadjuvant chemotherapy was established as standard therapy for MIBC.

Is There a Flare Phenomenon on Bone Scintigraphy in Men With Advanced Prostate Cancer Treated With Radium-223?

Radium-223 is an approved survival-prolonging treatment option in men with castration-resistant prostate cancer (mCRPC) and bone metastases. In the registration trial (ALSYMPCA), no regular imaging was mandated. We aimed to analyze men with metastatic mCRPC treated with radium-223 who had bone scintigraphy for staging and treatment monitoring.

A Contemporary Prostate Biopsy Risk Calculator Based on Multiple Heterogeneous Cohorts.

Prostate cancer prediction tools provide quantitative guidance for doctor-patient decision-making regarding biopsy. The widely used online Prostate Cancer Prevention Trial Risk Calculator (PCPTRC) utilized data from the 1990s based on six-core biopsies and outdated grading systems.

NRAGE confers poor prognosis and promotes proliferation, invasion, and chemoresistance in gastric cancer.

Neurotrophin receptor-interacting melanoma antigen-encoding protein (NRAGE) is a type II melanoma-associated antigen that plays an essential role in various processes, including cell differentiation and apoptosis. NRAGE has been shown to act as a cancer-related protein, with complex and apparently contradictory functions in a variety of cancers. In the current study, we examined the expression of ...

Urinary 8-isoprostane levels and occurrence of lung, colorectal, prostate, breast and overall cancer: Results from a large, population-based cohort study with 14 years of follow-up.

Urinary 8-isoprostane is an established biomarker for lipid peroxidation. However, the association between its pre-diagnostic levels and cancer incidence has rarely been evaluated.

Carbohydrate intake and the risk of prostate cancer.

Prostate cancer (PCa) is one of the leading cause cancer among men worldwide. Many epidemiologic studies have reported an association between carbohydrate intake and PCa. However, the evidence from epidemiologic studies is inconsistent. We conducted a comprehensive meta-analysis to explore the associations between carbohydrate intake and PCa risk and to investigate potential dose-response relation...

Cost Effectiveness of Gastric Cancer Screening According to Race and Ethnicity.

There are marked racial and ethnic differences in noncardia gastric cancer prevalence within the United States (US). Although gastric cancer screening is recommended in regions of high prevalence, screening is not routinely performed in the US. Our objective was to determine whether selected noncardia gastric cancer screening for high-risk races and ethnicities within the US is cost effective.

Bowel dysfunction after sigmoid resection underestimated: Multicentre study on quality of life after surgery for carcinoma of the rectum and sigmoid.

The Low Anterior Resection Syndrome (LARS) severely affects quality of life (QoL) after rectal cancer surgery. There are no data about functional complaints after sigmoid cancer surgery. We investigated LARS and QoL in patients with a resection for sigmoid cancer versus patients who had surgery for rectal cancer.

Body Weight and Breast Cancer: Nested Case-Control Study in Southern Brazil.

Current studies have shown that fast weight gain may be more important than body mass index on the incidence of breast cancer. The aim of this study was to evaluate the association between body weight and breast cancer.

Maintaining Dose Intensity of Adjuvant Chemotherapy in Older Patients With Breast Cancer.

Maintaining the relative dose intensity (RDI) of adjuvant chemotherapy at ≥ 85% has been associated with improved treatment outcomes in early-stage breast cancer (ESBC). Increasing evidence has suggested that patients aged ≥ 65 years can maintain the optimal RDI for standard chemotherapy regimens. The present study investigated the RDI of newer adjuvant chemotherapy regimens in this demograp...

Simultaneous determination of dihydrotestosterone and its metabolites in mouse sera by LC-MS/MS with chemical derivatization.

Androgens play a vital role in prostate cancer development, and their elimination and blockade are essential in the disease management. DHT is the key ligand for androgen receptor (AR) in the prostate. It is locally synthesized from testosterone. In the prostate, DHT is predominantly metabolized to α-diol and β-diol. Recent studies indicate that impaired DHT catabolism is associated with prostat...

Treatment of SEC62 over-expressing tumors by Thapsigargin and Trifluoperazine.

Treatment with analogues of the SERCA-inhibitor Thapsigargin is a promising new approach for a wide variety of cancer entities. However, our previous studies on various tumor cells suggested resistance of SEC62 over-expressing tumors to this treatment. Therefore, we proposed the novel concept that e.g. lung-, prostate-, and thyroid-cancer patients should be tested for SEC62 over-expression, and de...

Integrated analysis of colorectal cancer microRNA datasets: identification of microRNAs associated with tumor development.

Colorectal cancer (CRC) is one of the leading cause of cancer death worldwide. Currently, no effective early diagnostic biomarkers are available for colorectal carcinoma. Therefore, there is a need to discover new molecules able to identify pre-cancerous lesions. Recently, microRNAs (miRNAs) have been associated with the onset of specific pathologies, thus the identification of miRNAs associated t...

rs17655 G>C polymorphism associated with cancer risk: evidence from 60 studies.

Xeroderma pigmentosum group G (XPG), a key component in nucleotide excision repair pathway, functions to cut DNA lesions during DNA repair. Genetic variations that alter DNA repair gene expression or function may decrease DNA repair ability and impair genome integrity, thereby predisposing to cancer. The association between rs17655 G>C polymorphism and cancer risk has been investigated extensivel...

Ras GTPase-Activating-Like Protein IQGAP1 (IQGAP1) Promotes Breast Cancer Proliferation and Invasion and Correlates with Poor Clinical Outcomes.

BACKGROUND Breast cancer is one of the most common female cancers in the world. As a key integrator of cell signaling pathways, IQGAP1 contributes to the development and progression of several cancers. However, the exact effects and molecular mechanisms of IQGAP1 in breast cancer progression remain poorly understood. MATERIAL AND METHODS In the present study, IQGAP1 expression was measured in 96 p...

Using patient-reported outcome measures to deliver enhanced supportive care to people with lung cancer: feasibility and acceptability of a nurse-led consultation model.

Developing new supportive/palliative care services for lung cancer should encompass effective ways to promptly identify and address patients' healthcare needs. We examined whether an in-clinic, nurse-led consultation model, which was driven by use of a patient-reported outcomes (PRO) measure, was feasible and acceptable in the identification of unmet needs in patients with lung cancer.

New insights into the inflamed tumor immune microenvironment of gastric cancer with lymphoid stroma: from morphology and digital analysis to gene expression.

Gastric cancer with lymphoid stroma (GCLS) is characterized by prominent stromal infiltration of T-lymphocytes. The aim of this study was to investigate GCLS biology through analysis of clinicopathological features, EBV infection, microsatellite instability (MSI), immune gene-expression profiling and PD-L1 status in neoplastic cells and tumor immune microenvironment.

Intratumoral heterogeneity on dedicated breast positron emission tomography predicts malignancy grade of breast cancer.

Dedicated breast positron emission tomography (DbPET) provides detailed high-resolution images and can detect intratumoral heterogeneity using F-fluorodeoxyglucose (FDG). We aimed to evaluate the correlation between FDG uptake on DbPET and the clinicopathological features of breast cancer, particularly those with an intratumoral heterogeneous distribution of FDG on DbPET.

8th International conference on Tumor Microenvironment, Lisbon, Portugal June 10-14, 2018.

MicroRNA-Dependent Regulation of IGF1R Gene Expression in Hormone-Sensitive and Hormone-Resistant Prostate Cancer Cells.

Using multiple parallel sequencing on Illumina platform, we identified eight microRNAs that showed significant opposite changes of gene expression in cells of the hormone-sensitive LNCaP prostate cancer cell line and in cells of the hormone-resistant DU-145 cell line, in comparison to the microRNA expression in the normal prostate tissue cells. We found that the insulin-like growth factor 1 recept...

Novel evaluation scale for QOL (QOL-ACD-BP) in preoperative chemotherapy for breast cancer.

Quality-of-life (QOL) has been reported to affect the prognosis of many types of cancer, and several studies used various QOL assessment tools to determine the relationship between QOL and cancer prognosis. In this study, QOL-Questionnaire for Cancer Patients Treated with Anti-Cancer Drugs-the Breast (QOL-ACD-B) was modified to be suitable for preoperative chemotherapy (POC) and was named the QOL-...

Tumour stage and gender predict recurrence and second primary malignancies in head and neck cancer: a multicentre study within the INHANCE consortium.

Recurrence and second primary cancer (SPC) continue to represent major obstacles to long-term survival in head and neck cancer (HNC). Our aim was to evaluate whether established demographics, lifestyle-related risk factors for HNC and clinical data are associated with recurrence and SPC in HNC. We conducted a multicentre study by using data from five studies members of the International Head and N...

MicroRNAs as potential therapeutics to enhance chemosensitivity in advanced prostate cancer.

Docetaxel and cabazitaxel are taxane chemotherapy treatments for metastatic castration-resistant prostate cancer (CRPC). However, therapeutic resistance remains a major issue. MicroRNAs are short non-coding RNAs that can silence multiple genes, regulating several signalling pathways simultaneously. Therefore, synthetic microRNAs may have therapeutic potential in CRPC by regulating genes involved i...

let-7i-5p, miR-181a-2-3p and EGF/PI3K/SOX2 axis coordinate to maintain cancer stem cell population in cervical cancer.

The characteristics of cancer stem cells (CSCs) and the genes responsible for their maintenance are highly variable in different cancers. Here, we identify the coordination among miRNAs and EGF pathway genes which is critical for the maintenance of CSCs in cervical cancer. The transcript analysis of CSCs enriched from cervical cancer cell lines (CaSki and HeLa) revealed a significant upregulation ...

The natural agent 4-vinylphenol targets metastasis and stemness features in breast cancer stem-like cells.

Cancer stem-like cells (CSC) are regarded as the source of tumour origins, metastasis and drug resistance, and limits current treatment regimens. Previously, we reported the first study of the anti-angiogenic and anti-tumour activities of 4-vinylphenol. To further examine the therapeutic role of 4-vinylphenol, the inhibitory effects of 4-vinylphenol on cancer stemness, drug resistance and metastas...

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