Oncocytic meningioma: a case report and review of the literature.

Oncocytic meningioma is an uncommon variant of meningioma, with only 20 reported cases to date, that is histologically characterized by the presence of neoplastic cells with granular eosinophilic cytoplasm rich in mitochondria. We present the clinicopathological features of a case of oncocytic meningioma in a 49-year-old Chinese female, along with a literature review. Brain computed tomography and magnetic resonance imaging demonstrated a slightly hyperintense mass located in the right frontal region and attached to the dura.

Clinicopathological study of gene rearrangement and microRNA expression of primary central nervous system diffuse large B-cell lymphomas.

We studied the clinicopathological and imaging characteristics of primary central nervous system diffuse large B-cell lymphomas (PCNS-DLBCL). Imaging, pathologic histology, and immunohistochemical staining characteristics were analyzed, and the immunoglobulin heavy and light chain gene rearrangement of 25 PCNS-DLBCL cases was examined. MicroRNA was extracted from 10 cases each of PCNS-DLBCL, extracerebral germinal center DLBCL (GC-DLBCL), and extracerebral non-GC-DLBCL (NGC-DLBCL); we conducted chip hybridization and comparatively analyzed the difference among the three.

miR-34a regulates cisplatin-induce gastric cancer cell death by modulating PI3K/AKT/survivin pathway.

The purposes of this study were to determine the expression profiles of microRNA-34a (miR-34a) in human gastric cancer cell line (SGC-7901) and cisplatin-resistant cell lines (SGC-7901/DDP), and to establish the correlation between miR-34a expression profile and the sensitivity of human gastric cancer cell to cisplatin-based pattern, thereby providing new methods and strategies for treating gastric cancer. Gastric cancer cell line (SGC-7901) and cisplatin-resistant cell line (SGC-7901/DDP) were cultivated in vitro, respectively. Quantitative real-time PCR (qRT-PCR) and Western blot were utilized to determine the expression profiles of miR-34a and survivin in both gastric cancer cell lines.

[Clinical features and management of pyothorax due to postoperative cervical anastomotic leakage in esophageal cancer surgery].

Objective: To investigate the clinical characteristics and managements of pyothorax due to postoperative cervical anastomotic leakage after esophageal cancer surgery.

Methods: From January 2006 to January 2013, 3342 patients with esophageal carcinoma underwent esophagectomy and cervical esophagogastric anastomosis. Of them, 19 patients developed pyothorax following cervical anastomotic leakage and their clinicopathological data were analyzed retrospectively.

Energetic factors determining the binding of type I inhibitors to c-Met kinase: experimental studies and quantum mechanical calculations.

Aim: To decipher the molecular interactions between c-Met and its type I inhibitors and to facilitate the design of novel c-Met inhibitors.

Methods: Based on the prototype model inhibitor 1, four ligands with subtle differences in the fused aromatic rings were synthesized. Quantum chemistry was employed to calculate the binding free energy for each ligand.

Synthesis and biological evaluation of 2-amino-5-aryl-3-benzylthiopyridine scaffold based potent c-Met inhibitors.

A series of 2-amino-N-benzylpyridine-3-carboxnamides, 2-amino-N-benzylpyridine-3-sulfonamides and 2-amino-3-benzylthiopyridines against c-Met were designed by means of bioisosteric replacement and docking analysis. Optimization of the 2-amino-3-benzylthiopyridine scaffold led to the identification of compound (R)-10b displaying c-Met inhibition with an IC50 up to 7.7nM.

Luminal breast cancer cell lines overexpressing ZNF703 are resistant to tamoxifen through activation of Akt/mTOR signaling.

Background: Selective estrogen receptor modulators, such as tamoxifen, play a pivotal role in the treatment of luminal-type breast cancer. However, in clinical applications, nearly half of breast cancer patients are insensitive to tamoxifen, a small number of whom have early recurrence or disease progression when receiving tamoxifen. The underlying mechanism of this resistance has not been determined.

[Clinical analysis of 32 cases of Ramsay Hunt syndrome].

Objective: To observe the clinical features and the treatment effect of 32 cases of Ramsay Hunt syndrome and explore the relationship between different clinical manifestations and the prognosis.

Method: Using the integrated therapy including the medication and physiotherapy of ultrashort wave, the relationship between clinical manifestations and recovery time was analyzed.

Result: Twenty two cases were cured, 10 cases showed improvement of the symptoms, and no patients complained ineffectiveness.

Ovarian mucinous cystic tumor with sarcoma-like mural nodules and multifocal anaplastic carcinoma: a case report.

A 48-year-old woman presented with left abdominal pain and fullness. Computed tomography scan revealed a multicystic mass with multifocal mural nodules. Histologic examination showed a mucinous cystic tumor with cystadenoma, borderline malignant cystadenoma and cystadenocarcinoma, which were associated with sarcoma-like mural nodules (SLMNs) and multifocal anaplastic carcinoma.

Rapid visual detection of highly pathogenic Streptococcus suis serotype 2 isolates by use of loop-mediated isothermal amplification.

Streptococcus suis serotype 2 (S. suis 2) is an important zoonotic pathogen that causes considerable economic losses to the pig industry and significantly threatens public health worldwide. The highly pathogenic S.

Cytoplasmic expression of the ELAV-like protein HuR as a potential prognostic marker in esophageal squamous cell carcinoma.

Esophageal squamous cell carcinoma (ESCC) is one of the most frequent cancers and a leading cause of death from cancer in China. The human ELAV-like protein HuR has been found to contribute to cancer development and progression through stabilizing a group of cellular mRNAs of cancer-related genes. In this study, we investigated the expression of HuR in a cohort of ESCC patients using immunohistochemical staining.

Undecylprodigiosin induced apoptosis in P388 cancer cells is associated with its binding to ribosome.

Prodigiosins (PGs) are a family of natural red pigments with anticancer activity, and one member of the family has entered clinical phase II trials. However, the anticancer mechanisms of PGs remain largely unclear. This study was designed to investigate the molecular basis of anticancer activity of UP, a derivative of PGs, in P388 cells.

[Geographical distribution and host selection of Leptotrombidium rubellum in some parts of Yunnan province].

Objective: To investigate the geographical distribution and host selection of Leptotrombidium rubellum among different small mammal hosts in some areas of Yunnan province, China.

Methods: Field survey was carried out in 23 counties of Yunnan province between 2001 and 2011. Small mammal hosts were captured with mouse cages and traps with baits.

Synthesis and antitumor activities of naturally occurring oleanolic acid triterpenoid saponins and their derivatives.

Twenty-six naturally occurring oleanolic acid saponins and their derivatives, 16 of which were synthesized in this study, were preliminarily evaluated against human cancer cells. From SAR studies, the presence of α-l-rhamnosyl residue at the terminal of both C-3 and C-28 position for oleanolic acid bidesmosides was important to enhance cytotoxicity, and introducing more sugar residues at C3-OH of compound 12 with C-28 carboxylic acid is a favorable modification to ameliorate the anticancer activity. Furthermore, α-l-rhamnosyl moiety linked to C2-OH of the first monosaccharide (α-l-alabinose, β-d-xylose, β-d-galactose or β-d-glucose) in C3-OH of oleanolic acid was helpful to improve the cytotoxicity.

RXRα inhibits the NRF2-ARE signaling pathway through a direct interaction with the Neh7 domain of NRF2.

The transcription factor NRF2 (NFE2L2) is a pivotal activator of genes encoding cytoprotective and detoxifying enzymes that limit the action of cytotoxic therapies in cancer. NRF2 acts by binding antioxidant response elements (ARE) in its target genes, but there is relatively limited knowledge about how it is negatively controlled. Here, we report that retinoic X receptor alpha (RXRα) is a hitherto unrecognized repressor of NRF2.

[Typical symptoms of colorectal cancer and its influence in timely diagnosis].

Objective: To explore the spectrum of typical symptoms associated with colorectal cancer (CRC) and their influence in timely diagnosis.

Methods: A total of 400 cases were randomly collected from 1798 CRC patients treated at our hospital from January 2000 to December 2010. A retrospective chart review was undertaken for all identified cases.

Anthraquinone Derivatives as Potent Inhibitors of c-Met Kinase and the Extracellular Signaling Pathway.

The aberrant function of c-Met kinase signaling pathway is ubiquitously involved in a broad spectrum of human cancers; thus, a strong rationale exists for targeting the kinase pathway in cancer therapy. Via integration of computational and experimental studies, anthraquinone derivatives were identified for the first time as potent c-Met kinase inhibitors in this research. The aberrant activation of the c-Met kinase pathway results from (TPR)-Met, MET gene mutation, or amplification and a hepatocyte growth factor (HGF)/scatter factor-dependent autocrine or paracrine mechanism.

Differential Expression of Wnt Pathway Genes in Sporadic Hepatocellular Carcinomas Infected With Hepatitis B Virus Identified With OligoGE Arrays.

Background: Epidemiological evidence has clearly indicated that chronic infection with the hepatitis B virus (HBV) is the major risk factor for developing hepatocellular carcinoma (HCC). Nonetheless, the mechanisms by which HBV contributes to the pathogenesis of HCC have not been fully elucidated.

Objectives: Our aim was to characterize differential gene expression profiles related to the Wnt signaling pathway between primary tumor and adjacent normal tissues in HCC patients with concomitant HBVinfection .

Novel 5-(benzyloxy)pyridin-2(1H)-one derivatives as potent c-Met inhibitors.

A series of novel 5-(benzyloxy)pyridin-2(1H)-ones were designed, synthesized and biologically evaluated for c-Met inhibition. Various amides and benzoimidazoles at C-3 position were investigated. A potent compound 12b with a c-Met IC50 of 12nM was identified.

Correlation between chemosensitivity to anticancer drugs and telomerase reverse transcriptase mRNA expression in gastric cancer.

Background: The determination of sensitive chemotherapy drugs for gastric cancer (GC) is one of the greatest challenges of adjuvant therapy. Here we evaluated the chemosensitivity of GC to anticancer drugs and the telomerase reverse transcriptase (hTERT) mRNA expression, and investigated the relationship of them.

Methods: The GC cells which were collected from 68 patients with primary GC were primary cultured.

SWI phase asymmetries in deep gray matter of healthy adults: is there an association with handedness?

To explore the handedness effects on phase asymmetries in deep gray matter of healthy adults by using magnetic susceptibility-weighted imaging (SWI) phase. Thirty left-handed (16 men, 14 women; age range, 20 to 57 years) and 30 age- and sex-matched right-handed (16 men, 14 women; age range, 20 to 58 years) healthy adults were examined at 3.0 T MRI.

TIPE2 deficiency accelerates neointima formation by downregulating smooth muscle cell differentiation.

Phenotypic switching of vascular smooth muscle cells (VSMCs) is known to play a key role in the development of atherosclerosis. However, the mechanisms that mediate VSMC phenotypic switching are unclear. We report here that TIPE2, the tumor necrosis factor (TNF) α-induced protein 8-like 2 (TNFAIP8L2), plays an atheroprotective role by regulating phenotypic switching of VSMCs in response to oxidized low-density lipoprotein (ox-LDL) stimuli.

Epithelioid hemangioendothelioma of the meninges mimicking metastatic carcinoma: a case report.

Epithelioid hemangioendothelioma (EHE) is a rare, locally aggressive well-differentiated endothelial tumor, which frequently develops from the peripheral veins. Meningeal EHE has only been reported in four previous cases. Here we report the case of a 38-year-old female with EHE of the meninges and secondary involvement of the skull.

Curcumin induces cell death and restores tamoxifen sensitivity in the antiestrogen-resistant breast cancer cell lines MCF-7/LCC2 and MCF-7/LCC9.

Curcumin, a principal component of turmeric (Curcuma longa), has potential therapeutic activities against breast cancer through multiple signaling pathways. Increasing evidence indicates that curcumin reverses chemo-resistance and sensitizes cancer cells to chemotherapy and targeted therapy in breast cancer. To date, few studies have explored its potential antiproliferation effects and resistance reversal in antiestrogen-resistant breast cancer.