Development of machine learning prognostic models for overall survival of prostate cancer patients with lymph node-positive.

Prostate cancer (PCa) patients with lymph node involvement (LNI) constitute a single-risk group with varied prognoses. Existing studies on this group have focused solely on those who underwent prostatectomy (RP), using statistical models to predict prognosis. This study aimed to develop an easily accessible individual survival prediction tool based on multiple machine learning (ML) algorithms to predict survival probability for PCa patients with LNI.

Down-Regulation of Circular RNA_000926 Attenuates Renal Cell Carcinoma Progression through miRNA-411-Dependent CDH2 Inhibition.

Many studies have recognized that circular RNAs (circRNAs) can be promising targets for renal cell carcinoma (RCC) by acting as competing endogenous RNAs for miRNAs. This study intends to uncover the implication of a novel circRNA, circ_000926 in RCC, and how it affects tumorigenesis. Microarray-based circRNA/gene expression profiling of RCC was used to identify differentially expressed circRNAs/genes in RCC and normal tissues.

Dynamic changes of different phenotypic and genetic circulating tumor cells as a biomarker for evaluating the prognosis of RCC.

Background: Circulating tumor cells (CTCs) and relevant autophagy Beclin-1 genes expression are critical biomarkers for tumorigenesis and tumor progress. Here we investigated the relationship of dynamic changes of CTCs and Beclin-1 expression of CTCs with renal cell carcinoma (RCC) prognosis.

Materials And Methods: A total of 69 patients with RCC were enrolled and divided into two groups based on the postoperative status of distant metastasis, including metastasis-free group (n = 58) and metastatic group (n = 11).

Silencing of Armadillo Repeat-Containing Protein 8 (ARMc8) Inhibits TGF-β-Induced EMT in Bladder Carcinoma UMUC3 Cells.

Armadillo repeat-containing protein 8 (ARMc8) is a key factor in regulating cell migration, proliferation, tissue maintenance, and tumorigenesis. However, its role in bladder cancer remains unknown. Thus, in this study we sought to investigate the effect of ARMc8 on the epithelial-to-mesenchymal transition (EMT) progress in bladder cancer cells induced by transforming growth factor-β1 (TGF-β1).

Dendritic cells serve as a "Trojan horse" for oncolytic adenovirus delivery in the treatment of mouse prostate cancer.

Aim: Adenovirus-mediated gene therapy is a novel therapeutic approach for the treatment of cancer, in which replication of the virus itself is the anticancer method. However, the success of this novel therapy is limited due to inefficient delivery of the virus to the target sites. In this study, we used dendritic cells (DCs) as carriers for conditionally replicating adenoviruses (CRAds) in targeting prostate carcinoma (PCa).

Predictors of clinical outcome after minimally invasive percutaneous nephrolithotomy for renal calculus.

To investigate all the predictors of operative duration, hospital stay and stone-free rate post-minimally invasive percutaneous nephrolithotomy (MPCNL) and to establish a logistic regression formula to predict the probability of stone-free post-MPCNL. From August 2009 to August 2012, 396 patients were enrolled in the present study. The patients' characteristics, history, laboratory examination and imaging information were used as independent variables, and operative duration, hospital stay, residuals (≥4 mm) as outcomes.

Identification of angiogenesis-related miRNAs in a population of patients with renal clear cell carcinoma.

In the present study, we compared the expression of miRNAs and angiogenesis-related genes in the renal tumors and adjacent normal renal tissues of patients with clear cell renal cell carcinoma (ccRCC). The first part of the present study was a preliminary analysis of 4 patients with stage T1a/b ccRCC that measured the levels of angiogenesis and expression of angiogenesis-related genes and miRNAs in the tumors and adjacent normal renal tissues. The second part of this study was an analysis of 30 patients with stage T1, T2 or T3 ccRCC that employed qPCR to characterize expression of angiogenesis-related miRNAs in the tumors and adjacent normal tissues.

Reconstruction for the distal urethral end incorrectly anastomosed to the proximal false passage in the treatment of urethral stricture.

Patient: Male, 24 FINAL DIAGNOSIS: Urethral stricture Symptoms: -

Medication: - Clinical Procedure: - Specialty: Urology.

Objective: Unusual or unexpected effect of treatment.

Background: The most dependable management of anterior urethral stricture is the complete excision of the area of fibrosis, with a primary reanastomosis of the normal ends of the anterior urethra.

Suppression of lung cancer cell invasion by LKB1 is due to the downregulation of tissue factor and vascular endothelial growth factor, partly dependent on SP1.

LKB1 encodes a serine/threonine kinase generally inactivated in many human cancers, which mediates cancer cell proliferation, migration and differentiation. Recent studies indicated that LKB1 exhibits potent anti-metastatic activity. However, the underlying molecular mechanisms of this activity remain unclear.

Anuria and abdominal pain induced by ceftriaxone-associated ureterolithiasis in adults.

Ceftriaxone is known to cause biliary pseudolithiasis and, rarely, nephrolithiasis mainly in children. However, we reported the development of bilateral distal ureteral ceftriaxone-associated lithiasis in 7 adults, which suggests that the risk of ureterolithiasis impaction should be considered when treating patients with ceftriaxone, even in adults. To avoid strengthening greater renal damage, ureteroscopic insertion of double J stents may be an alternative management for patients with ureteral ceftriaxone-associated lithiasis.

An egg shell-like retroperitoneal pseudocyst.

Retroperitoneal pseudocysts are rare entities. Egg shell-like calcified retroperitoneal pseudocyst is rarer. We report a 75-year-old woman with an egg shell-like calcified retroperitoneal pseudocyst.

Overexpression of the LKB1 gene inhibits lung carcinoma cell proliferation partly through degradation of c-myc protein.

LKB1 encodes a serine/threonine kinase generally inactivated in human lung cancers, which mediates cancer cell proliferation, migration and differentiation, but its biological function has not been completely elucidated. In this study, we demonstrated that LKB1 was associated with a substantial reduction of c-myc expression by using an inducible LKB1 expression system in the LKB1-null lung cell line A549. Nevertheless, the reduction of the c-Myc gene expression was not accompanied by corresponding reduction of mRNAs but protein, which can be abrogated by a proteosome inhibitor (MG132), suggesting that the reduction was associated with their increased degradation rather than transcriptional controls.

[Establishment of a rat islets model coated with human umbilical vein endothelial cells coexpressing sCD40L-Ig and CTLA4-Ig].

Aim: To isolate and culture primary human umbilical vein endothelial cells (HUVECs) and then to coat rat islets in vitro.

Methods: Primary HUVECs were isolated and cultured, then they were identified by detecting human VIII factor associated antigen with immunohistochemical method. Weible-palade bodies were observed by transmission electron microscope and the phagocytosis for DiI-Ac-LDL was detected by fluorescent microscopy.

[Recombinant adenovirus-mediated RNA silencing of tissue factor expression in human islet: an in vitro study].

Objective: To construct a replication-incompetent recombinant adenovirus mediating short hairpin RNA (shRNA)-induced tissue factor gene silencing in the islet.

Methods: Four pairs of complementary oligonucleotides were designed and synthesized to create double-stranded oligonucleotides (ds oligo). The ds oligos were cloned into Pentr/U6 vector to construct the shuttle plasmid pENTR/U6-shRNA, which was transduced into human islets via liposome after sequence verification.

[Directional differentiation of murine CD117+ hemopoietic stem cells into immature dendritic cells and their identification].

Objective: To establish a stable method for obtaining large quantity of highly purified immature dendritic cells (imDCs) in vitro, and identify the morphology, function and surface markers of the cells.

Methods: CD117(+) hemopoietic stem cells (HSCs) were isolated and purified from the bone marrow of healthy C57 mice by magnetic affinity cell sorting. After cell expansion by treatment with stem cell factor (SCF) and interleukin-3 (IL-3), the HSCs were induced for directional differentiation into imDCs by treatment with GM-CSF, IL-4 and IL-10.

Co-expression of sCD40LIg and CTLA4Ig mediated by adenovirus prolonged mouse skin allograft survival.

Objective: To investigate the role of simultaneous blockade of CD40/CD40L and B7/CD28 pathways in the immune tolerance via co-expression of sCD40LIg and CTLA4Ig mediated by replication-defective adenovirus.

Methods: Ad-sCD40LIg-IRES(2)-CTLA4Ig, replication-defective adenovirus co-expressing sCD40LIg and CTLA4Ig, was constructed and identified. The co-expression of sCD40LIg and CTLA4Ig was evaluated with confocal laser scanning microscope and Western blotting.

[Construction of recombinant adenovirus expressing sCD40L-Ig].

Aim: To construct adenovirus expressing secretory human CD40L-Ig (sCD40 ligand Ig fusion protein).

Methods: The genes encoding the extracellular domain of human CD40L and IgG Fc were amplified with PCR and inserted into shuttle vector pAdTrack-CMV which then was transformed into E. coli pAdEasy-1-BJ5183 to produce recombinant Ad plasmid.

[The isolation and culture of Sertoli cells from adult testis and their immune privilege mechanism].

Aim: To set up a method of isolation and culture of Sertoli cells from adult testis and to investigate their immune privilege mechanism.

Methods: Adult testis Sertoli cells were prepared successfully by digestion with trypsin, collagenase, hyaluronidase and DNase, and then the expression of Fas-L and TGF-beta1 was examined by SABC staining. The Sertoli cells were cocultured with adult splenocytes to detect the inhibitory effect of Sertoli cells on splenocyte proliferation by MTT colorimetry.