Long non-coding RNA nuclear enriched abundant transcript 1 (NEAT1) sponges microRNA-124-3p to up-regulate phosphodiesterase 4B (PDE4B) to accelerate the progression of Parkinson's disease.

Reportedly, long non-coding RNA (lncRNA) are crucial modulators in neurodegenerative diseases. Herein, we investigated the role of lncRNA nuclear enriched abundant transcript 1 (NEAT1) in Parkinson's disease (PD). PD model was established based on SH-SY5Y cells treated with 1-methyl-4-phenylpyridinium (MPP+).

Evaluation of a novel monoclonal antibody mAb109 by immuno-PET/fluorescent imaging for noninvasive lung adenocarcinoma diagnosis.

Monoclonal antibodies are believed to be magic bullets and hold great potential for lots of biological process. About 100 μg of mAb109 was expressed in 5 × 10 cells after 10 days' immunization. Cu-NOTA-mAb109 was synthesized with the specific activity of 0.

Associations of and gene polymorphism with ulinastatin efficacy in patients with severe acute pancreatitis.

We aim to explore the associations between matrix metalloproteinase (MMP) gene polymorphism with ulinastatin (UTI) efficacy in treating severe acute pancreatitis (SAP). A total of 276 SAP patients were assigned into the control (=135) and observation (=141) groups. PCR-restriction fragment length polymorphism (PCR-RFLP) was used for genotype and allele frequency distribution.

A modified total arch replacement combined with a stented elephant trunk implantation for acute type A dissection under deep hypothermic circulatory arrest and selective antegrade cerebral perfusion.

Objectives: Since the optimal management of patients with acute aortic dissection is unclear, this study analyzed total arch replacement combined with stented elephant trunk implantation in the treatment of acute type A aortic dissection.

Methods: Between February 2008 and February 2013, 86 consecutive patients admitted to our hospital for acute type A dissection underwent total arch replacement combined with stented elephant trunk implantation under deep hypothermic circulatory arrest. The Bentall, David, and Wheat procedure was performed on 46, 12 and two patients, respectively.

MiR-223 modulates multidrug resistance via downregulation of ABCB1 in hepatocellular carcinoma cells.

Multidrug resistance (MDR) has become a major impediment to a successful treatment for liver cancer patients, and one of the common reasons for MDR is the activation of ABCB1 gene, leading to the over-expression of P-glycoprotein (P-gp), which conferred cancer cells be resistant to a broad range of anticancer drugs. MicroRNAs (miRNAs) are a class of short, non-coding RNA moleculars that can regulate gene expression at the post-transcriptional level. In the current study, the aim is to explore whether miRNA participates in the regulation of MDR mediated by ABCB1.

[Experimental study on suppressive effect of zilongjin on growth of human breast cancer cell line MCF-7 in vitro and in vivo].

Objective: To investigate the suppressive effect and mechanism of action of Zilongjin (ZLJ, a composite Chinese drug) on the growth of human breast carcinoma cell line MCF-7 in vivo and in vivo.

Methods: The cell survival rate and clone forming efficiency were observed by direct cell counting with trypan blue staining and double layers soft agar test; the p-ERK 1/2 expression was analyzed using Western blotting; 17-beta-estrogen pellet embedding was adopted to make the subcutaneous transplanted tumor MCF-7 cell in BALB/c nude mice for detecting the tumor growth suppressive effect of ZLJ (20 g crude drug/kg).

Results: The survival rate of MCF-7 cell was obviously decreased by ZLJ in a time and dose-dependent manner; only few and small clones on soft agar could be found after treated with ZLJ, the inhibition rates of clone formation(%) for 0.

[Effects of zilongjin on proliferation and apoptosis of human breast cancer cell line MCF-7].

Objective: To study the effect of Zilongjin (ZLJ, a composite Chinese drug) on proliferation and apoptosis of human breast carcinoma cell line MCF-7.

Methods: MCF-7 cells were randomly divided into four groups depending on the culture solution used, the control group, cultured with 1640 medium not contained ZLJ; and the three ZJL groups cultured with medium contained low (1.5 mg/mL), moderate (3 mg/mL) and high (6 mg/mL) dosage of ZLJ crude drug respectively.

Limitations in SELDI-TOF MS whole serum proteomic profiling with IMAC surface to specifically detect colorectal cancer.

Background: Surface enhanced laser desorption and ionization time-of-flight mass spectrometry (SELDI-TOF-MS) analysis on serum samples was reported to be able to detect colorectal cancer (CRC) from normal or control patients. We carried out a validation study of a SELDI-TOF MS approach with IMAC surface sample processing to identify CRC.

Methods: A retrospective cohort of 338 serum samples including 154 CRCs, 67 control cancers and 117 non-cancerous conditions was profiled using SELDI-TOF-MS.

Immunoscintigraphy of local recurrent rectal cancer with 99mTc-labeled anti-CEA monoclonal antibody CL58.

Aim: To explore a specific diagnostic method for local recurrent rectal cancer.

Methods: Immunoscintigraphy with (99m)Tc-labeled anti-CEA monoclonal antibody (MoAb) CL-58 was performed for patients suspected of having a postoperative local recurrent rectal cancer and the findings were compared with the results of conventional imaging and pathology.

Results: A total of 36 patients with a suspected local recurrent rectal cancer underwent immunoscintigraphy with (99m)Tc-conjugated CL58.

A serum proteomic pattern for the detection of colorectal adenocarcinoma using surface enhanced laser desorption and ionization mass spectrometry.

Purpose: New serum biomarkers are needed to improve the early detection of colorectal adenocarcinoma. We performed surface enhanced laser desorption and ionization time-of-flight mass spectrometry (SELDI-TOF-MS) to screen for differentially expressed proteins in serum and build a proteomic diagnostic pattern for the detection of colorectal adenocarcinoma to improve the prognosis of patients with this disease.

Experimental Design: In an attempt to improve current approaches to the serologic diagnosis of colorectal cancer, we analyzed serum samples from subjects with or without colorectal cancer using SELDI-MS.

COX-2 expression and tumor angiogenesis in colorectal cancer.

Aim: Cyclooxygenase-2 (COX-2) is one of the rate-limiting enzymes in metabolism of arachidonic acid, and COX-2 inhibitors demonstrate preventive effects on cancer, especially on colorectal cancer. The underlying mechanism remains unclear. The aim of this study was to illustrate the relationship between angiogenesis and COX-2 in carcinogenesis of colorectal cancer.

Role of COX-2 in carcinogenesis of colorectal cancer and its relationship with tumor biological characteristics and patients' prognosis.

Aim: Recent clinical epidemiological studies have demonstrated the preventive effect of non-steroidal anti-inflammatory drugs (NSAIDs) against colorectal cancer. The underlying mechanism might be the inhibition of rate-limiting enzyme cyclooxygenase-2 (COX-2) in metabolism of arachidonic acid. The role of COX-2 in carcinogenesis of colorectal cancer and its relationship with tumor biological characteristics and patients' prognosis still remain unclear.

Rapid screening mitochondrial DNA mutation by using denaturing high-performance liquid chromatography.

Aim: To optimize conditions of DHPLC and analyze the effectiveness of various DNA polymerases on DHPLC resolution, and evaluate the sensitivity of DHPLC in the mutation screening of mitochondrial DNA (mtDNA).

Methods: Two fragments of 16s gene of mitochondrial DNA (one of them F2 is a mutant fragment) and an A3243G mutated fragment were used to analyze the UV detection limit and determine the minimum percentage of mutant PCR products for DHPLC and evaluate effects of DNA polymerases on resolution of DHPLC. Under the optimal conditions, we analyzed the mtDNA mutations from muscle tissues of mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) and screened blindly for variances in D-loop region of mtDNA from human gastric tumor specimen.