High glucose induces an activated state of partial epithelial-mesenchymal transition in human primary tubular cell cultures.

Tubulointerstitial fibrosis is observed in diabetic nephropathy. It is still debated whether tubular cells, undergoing epithelial-mesenchymal transition (EMT) in high glucose (HG) conditions, may contribute to interstitial fibrosis development. In this study, we investigated the phenotypic and molecular EMT-like changes and the alteration of inflammatory and fibrogenic secretome induced by HG in human primary tubular cell cultures.

The cross-talk between Abl2 tyrosine kinase and TGFβ1 signalling modulates the invasion of clear cell Renal Cell Carcinoma cells.

Clear cell Renal Cell Carcinoma (ccRCC) is the most common and metastatic urological cancer. Molecular players of ccRCC progression and metastasis are not completely known. Here, using primary cell cultures from patients' specimens, we found that TGFβ1/Smad signalling is more activated in high versus low grade ccRCC and inversely correlates with Abl2 tyrosine kinase protein expression.

36-kDa Annexin A3 Isoform Negatively Modulates Lipid Storage in Clear Cell Renal Cell Carcinoma Cells.

The adipocyte-like morphology of clear cell renal cell carcinoma (ccRCC) cells results from a grade-dependent neutral lipid accumulation; however, the molecular mechanism and role in renal cancer progression have yet to be clarified. ccRCC shows a gene expression signature consistent with adipogenesis, and the phospholipid-binding protein annexin A3 (AnxA3), a negative regulator of adipocyte differentiation, is down-regulated in RCC and shows a differential expression pattern for two isoforms of 36 and 33 kDa. Using primary cell cultures and cell lines, we investigated the involvement of AnxA3 isoforms in lipid storage modulation of ccRCC cells.

The glucose and lipid metabolism reprogramming is grade-dependent in clear cell renal cell carcinoma primary cultures and is targetable to modulate cell viability and proliferation.

Clear cell renal cell carcinoma (ccRCC) has a poor prognosis despite novel biological targeted therapies. Tumor aggressiveness and poor survival may correlate with tumor grade at diagnosis and with complex metabolic alterations, also involving glucose and lipid metabolism. However, currently no grade-specific metabolic therapy addresses these alterations.

Nephrosphere-Derived Cells Are Induced to Multilineage Differentiation when Cultured on Human Decellularized Kidney Scaffolds.

In end-stage chronic kidney disease, the option of organ transplantation is limited because of the scarce availability of kidneys. The combination of stem cell research, regenerative medicine, and tissue engineering seems a promising approach to produce new transplantable kidneys. Currently, the possibility to repopulate naturally obtained scaffolds with cells of different sources is advancing.

Major Action of Endogenous Lysyl Oxidase in Clear Cell Renal Cell Carcinoma Progression and Collagen Stiffness Revealed by Primary Cell Cultures.

Human clear cell renal cell carcinoma (ccRCC) is therapy resistant; therefore, it is worthwhile studying in depth the molecular aspects of its progression. In ccRCC the biallelic inactivation of the VHL gene leads to stabilization of hypoxia-inducible factors (HIFs). Among the targets of HIF-1α transcriptional activity is the LOX gene, which codes for the inactive proenzyme (Pro-Lox) from which, after extracellular secretion and proteolysis, derives the active enzyme (Lox) and the propeptide (Lox-PP).

Arg tyrosine kinase modulates TGF-β1 production in human renal tubular cells under high-glucose conditions.

Renal tubular cells are involved in the tubular interstitial fibrosis observed in diabetic nephropathy. It is debated whether epithelial-mesenchymal transition (EMT) affects tubular cells, which under high-glucose conditions overproduce transforming growth factor-β (TGF-β), a fibrogenic cytokine involved in interstitial fibrosis development. Our study investigated the involvement of non-receptor tyrosine kinase Arg (also called Abl2) in TGF-β production.

Using Copy Number Alterations to Identify New Therapeutic Targets for Bladder Carcinoma.

Bladder cancer represents the ninth most widespread malignancy throughout the world. It is characterized by the presence of two different clinical and prognostic subtypes: non-muscle-invasive bladder cancers (NMIBCs) and muscle-invasive bladder cancers (MIBCs). MIBCs have a poor outcome with a common progression to metastasis.

Chromosomal imbalances in human bladder urothelial carcinoma: similarities and differences between biopsy samples and cancer stem-like cells.

Background: The existence of two distinct groups of tumors with different clinical characteristic is a remarkable feature of transitional cell carcinomas (TCCs) of the bladder. More than 70% are low-grade (LG) non-infiltrating (NI) cancers at diagnosis, but 60-80% of them recur at least one time and 10-20% progress in stage and grade. On the other hand, about 20% of tumors show muscle invasion (IN) and have a poor prognosis with <50% survival after 5 years.

PKH(high) cells within clonal human nephrospheres provide a purified adult renal stem cell population.

The existence and identification of adult renal stem cells is a controversial issue. In this study, renal stem cells were identified from cultures of clonal human nephrospheres. The cultured nephrospheres exhibited the activation of stem cell pathways and contained cells at different levels of maturation.

DNA copy number alterations and PPARG amplification in a patient with multifocal bladder urothelial carcinoma.

Background: Bladder cancer is the seventh most common cancer worldwide and over 90% are transitional cell carcinoma (TCC). At the first time of diagnosis at least 70% of TCC present as superficial bladder cancer. Because the clinical outcome of superficial bladder tumors is relatively unpredictable, there is a pressing need to identify markers that may predict tumor recurrence and progression and new treatment strategies.

ERG deregulation induces PIM1 over-expression and aneuploidy in prostate epithelial cells.

The ERG gene belongs to the ETS family of transcription factors and has been found to be involved in atypical chromosomal rearrangements in several cancers. To gain insight into the oncogenic activity of ERG, we compared the gene expression profile of NIH-3T3 cells stably expressing the coding regions of the three main ERG oncogenic fusions: TMPRSS2/ERG (tERG), EWS/ERG and FUS/ERG. We found that all three ERG fusions significantly up-regulate PIM1 expression in the NIH-3T3 cell line.

Chromosomal aberrations in bladder cancer: fresh versus formalin fixed paraffin embedded tissue and targeted FISH versus wide microarray-based CGH analysis.

Bladder carcinogenesis is believed to follow two alternative pathways driven by the loss of chromosome 9 and the gain of chromosome 7, albeit other nonrandom copy number alterations (CNAs) were identified. However, confirmation studies are needed since many aspects of this model remain unclear and considerable heterogeneity among cases has emerged. One of the purposes of this study was to evaluate the performance of a targeted test (UroVysion assay) widely used for the detection of Transitional Cell Carcinoma (TCC) of the bladder, in two different types of material derived from the same tumor.

Biological heterogeneity of putative bladder cancer stem-like cell populations from human bladder transitional cell carcinoma samples.

Transitional cell carcinoma (TCC) is the most common type of bladder cancer. Emerging evidence has suggested that the capability of a tumor to grow and propagate is dependent on a small subset of cells, the cancer stem-like cells (CSCs) or tumor initiating cells. We report on the isolation and biological characterization of putative bladder CSC populations from primary TCCs.

Numb chin syndrome: the presenting symptom of a metastatic prostate carcinoma.

Numb chin syndrome is a sensory neuropathy characterized by numbness involving the distribution of the mental nerve that could be an uncommon manifestation of metastatic malignancy. Bony metastases are common in patients with advanced prostate carcinoma and involving preferentially vertebrae, sternum, pelvic bones, ribs and femurs. We report a case in an 82-year-old man presenting a history of mental neuropathy as the isolated presenting symptom of a widespread metastatic prostate cancer Numb chin syndrome was describe in some reviews as a late component of a previously diagnosed disease but this report underline the importance of this neuropathy as the isolated presenting symptom of a widespread metastatic prostate cancer.

Giant renal cyst complicated with acquired crossed renal ectopia, hypertension and renal cell carcinoma: case report and review of the literature.

Simple renal cysts are acquired kidney lesion that are described as spherical, smoothed surfaced, with a serous, sub-yellow content. They are generally considered as a harmless anomaly, however cases of complicated renal cysts have been reported. We present a case of an enormous renal cyst (the biggest ever described) containing more than 25 L of fluid mimicking ascites, complicated with controlateral displacement of ipsilateral functional kidney and intra-abdominal organs, renal cell carcinoma and hypertension.

Complete genital prosthetization in patients treated with bilateral orchiectomy for metachronous testicular cancer.

Unlabelled: Testicular malignant tumours represent 1% of neoplasms. The probability of developing a contralateral tumour is between 3% and 7%. We report two cases of complete genital prosthetization in two patients treated with bilateral orchiectomy for metachronous testicular cancer.

A 7-year history of an intratesticular mass: patient description and review of the literature about dermoid cysts of the testis.

A dermoid cyst is a particular form of a cystic teratoma. In the testis, it is very rare, with only a few cases reported in world literature. A 19-year-old patient come to our attention with a 7-year history of an intratesticular cystic mass.

Testosterone supplementation in hypogonadal men: our personal experience.

Introduction And Objectives: Around thirty years of age, we assist to a physiological, progressive and slow involution of the testicular function accompanied by a fall of the plasmatic levels of testosterone. Rarely hypogonadism is manifest in so young age with signs and symptoms, unless it is subsequent to severe events. After 50 years of age, it can present with a series of aspects that negatively influence the physical and sexual efficiency.

Leiomyoma of the seminal vesicles.

We report the case of a 37-year-old man suffering from dysuria, frequency, acute renal failure followed by bowel distress with rectal tenesmus. PSA was 6.19 ng/ml.

[Extracorporeal shock wave lithotripsy as surgical therapy in the kidney-ureter calculosis].

Introduction: The coming of the extra-corporeal shock waves lithotripsy (ESWL) represented one of the main progress in medicine of all times.

Materials And Methods: From January '84 up to March '99, 7.508 patients underwent extracorporeal shock wave lithotripsy (ESWL) for renal, ureteral and bladder stones with a total of 13.