Epithelioid Inflammatory Myofibroblastic Sarcoma with Leukemoid Reaction.

Epithelioid inflammatory myofibroblastic sarcoma (EIMS) is a rare and aggressive inflammatory myofibroblastic tumour (IMT) variant. This report identifies the first case of EIMS with leukemoid reaction. This is also the first case in which pancreatic infiltration occurred from the disease onset.

A better overall survival (OS) for total (ipsilateral) retroperitoneal lipectomy than standard complete resection in patients with retroperitoneal liposarcoma: a comparative multi-institutional study.

Background: Complete resection (CR) serves as the standard of surgical treatment for retroperitoneal liposarcoma (RPLS). Unfortunately, even at referral centers, recurrence rates are high, and CR may not address multifocal diseases, which are a common phenomenon in RPLS. We sought to retrospectively compare the clinical outcomes of RPLS patients treated with total (ipsilateral) retroperitoneal lipectomy (TRL) and CR.

Tracking significant modules and key genes for esophageal squamous cell carcinoma based on differential modules.

Background: The exact molecular mechanism of esophageal squamous cell carcinoma (ESCC) is still unknown, and the prognosis of ESCC has not been significantly improved.

Objective: To understand the molecular mechanism of ESCC, differential modules (DMs) and key genes were identified through conducting analysis on the differential co-expression network (DCN) based on the gene expression profiles of ESCC and protein-protein interaction (PPI) data.

Materials And Methods: First, gene expression profiles of ESCC and PPI data recruiting and preprocessing were conducted; then, a DCN was constructed based on the gene co-expression and gene differential expression in ESCC; in the following, candidate DMs were mined from DCN through a systemic module searching strategy, and significance analysis was performed on candidate DMs to identify DMs; moreover, significant genes contained in the DMs were analyzed to identify the underlying biomarkers for ESCC.

Utilizing multiple pathway cross-talk networks reveals hub pathways in primary mediastinal B-cell lymphoma.

Objective: The objective of this paper was to reveal hub pathways in primary mediastinal B-cell lymphoma (PMBL) based on multiple pathway crosstalk networks (PCNs) and give insight for its pathological mechanism.

Materials And Methods: Based on gene expression data, pathway data and protein-protein interaction data, background PCN (BPCN) and tumor PCN (TPCN) of PMBL were constructed. The rank product algorithm was implemented to identify hub pathways of BPCN and TPCN.

Surgical management of retroperitoneal sarcoma and opportunities for global collaboration.

Retroperitoneal sarcomas (RPS) are rare cancers that often reach massive size before detection. The mainstay of treatment for RPS is surgical resection, and complete resection is the only chance for potential cure. The management of RPS can be challenging and in individual cases, radiation and systemic therapy may be beneficial in both primary and recurrent disease.

Pathway cross-talk network strategy reveals key pathways in non-small cell lung cancer.

Purpose: The purpose of this study was to explore the pathway cross-talks and key pathways in non-small cell lung cancer (NSCLC) to better understand the underlying pathological mechanism.

Methods: Integrated gene expression data, pathway data and protein-protein interaction (PPI) data were assessed to identify the pathway regulatory interactions in NSCLC, and constructed the background and disease pathway crosstalk networks, respectively. In this work, the attractor method was implemented to identified the differential pathways, and the rank product (RP) algorithm was used to determine the importance of pathways.

Integrating differential pathway analysis with Monte Carlo cross-validation reveals seed cross-talks in non-small cell lung carcinoma.

Purpose: The objective of this study was to identify seed pathway cross-talks in non-small cell lung carcinoma (NSCLC), and to reveal potential pathological mechanism at molecular level systematically.

Methods: Differentially expressed genes (DEGs) between NSCLC and normal controls were identified using quantile- adjusted conditional maximum likelihood (QCML) method. Subsequently, differential pathways (DPs) enriched by DEGs were determined according to the Ingenuity Pathways Analysis )IPA) pathways and Fisher's exact test.

MiRNA-155 and miRNA-132 as potential diagnostic biomarkers for pulmonary tuberculosis: A preliminary study.

In our study, we aimed to profile a panel microRNAs (miRNAs) as potential biomarkers for the early diagnosis of pulmonary tuberculosis (PTB) and to illuminate the molecular mechanisms in the development of PTB. Firstly, gene expression profile of E-GEOD-49951 was downloaded from ArrayExpress database, and quantile-adjusted conditional maximum likelihood method was utilized to identify statistical difference between miRNAs of Mycobacterium tuberculosis (MTB)-infected individuals and healthy subjects. Furthermore, in order to assess the performance of our methodology, random forest (RF) classification model was utilized to identify the top 10 miRNAs with better Area Under The Curve (AUC) using 10-fold cross-validation method.

Advanced colorectal adenoma related gene expression signature may predict prognostic for colorectal cancer patients with adenoma-carcinoma sequence.

Background: There are still no absolute parameters predicting progression of adenoma into cancer. The present study aimed to characterize functional differences on the multistep carcinogenetic process from the adenoma-carcinoma sequence.

Methods: All samples were collected and mRNA expression profiling was performed by using Agilent Microarray high-throughput gene-chip technology.

Surgical management of leiomyosarcoma of the inferior vena cava.

The optimal surgical management of patients with leiomyosarcoma of inferior vena cava remains a controversy. From 1975 and 2009, five patients with leiomyosarcoma of inferior vena cava were treated at the Chinese PLA General Hospital and Beijing Shijitan Hospital. The age ranged 39-61 years and the duration of symptoms ranged from 18 to 36 months.

Two Chinese pedigrees for adenomatous polyposis coli: new mutations at codon 1309 and predisposition to phenotypic variations.

Familial adenomatous polyposis (FAP) is an autosomal dominant inherited disease caused by a mutation in the adenomatous polyposis coli (APC) gene. Some studies have attempted to correlate mutations at codon 1309 with classic FAP (≥100 colorectal polyps). We report two Chinese FAP pedigrees with new frameshift mutations at codon 1309, in which affected individuals manifest phenotypic variations.

Salvage irrigation-suction in gracilis muscle repair of complex rectovaginal and rectourethral fistulas.

Aim: To evaluate the efficacy of gracilis muscle transposition and postoperative salvage irrigation-suction in the treatment of complex rectovaginal fistulas (RVFs) and rectourethral fistulas (RUFs).

Methods: Between May 2009 and March 2012, 11 female patients with complex RVFs and 8 male patients with RUFs were prospectively enrolled. Gracilis muscle transposition was undertaken in all patients and postoperative wound irrigation-suction was performed in patients with early leakage.

Risk factors for recurrence and survival in patients with primary retroperitoneal tumors.

Purpose: Postoperative recurrence remains the major cause of death in patients with primary retroperitoneal tumors (PRT). This study aimed at investigating the potential biological and surgical factors associated with postoperative recurrence and survival in PRT patients.

Methods: Retrospective data were collected from 231 PRT patients from January 1980 and December 2005 from the General Hospital of PLA and Beijing Shijitan Hospital.

[Prospective study of gracilis muscle repair of complex rectovaginal fistula and rectourethral fistula].

Objective: To assess the efficacy and experience of gracilis muscle transposition for complex rectovaginal fistula (RVF) and rectourethral fistula (RUF).

Methods: Nineteen patients underwent gracilis muscle transposition for complex RVF and RUF from May 2009 to November 2011 in the Beijing Shijitan Hospital and the clinical data were prospectively collected. The success rate and complications were recorded.

[Bloodless medical and surgical procedures for retroperitoneal neoplasm resection].

Objective: To investigate the Bloodless Medical and Surgical Procedures for retroperitoneal neoplasm resection.

Methods: Retrospectively analyse the Bloodless Medical and Surgical Procedures during 36 retroperitoneal neoplasm resections from Beijing Shijitan Hospital Affiliated to Capital Medical University from September 2009 to December 2010, to discuss the preoperative preparation, anesthetic induction and maintainance, intraoperative monitoring and use of vasoactive drugs related experience.

Results: All the patients were safe during the perioperative period, without any operative and anesthetic complication.

[Comparison of clinical manifestation and severity between hospital-based American and Chinese patients with colorectal Crohn disease].

Objective: To evaluate the differences in clinicopathological characteristics and severity between American and Chinese patients with colorectal Crohn disease(CD).

Methods: Between March 1985 and September 2004, 68 patients with colorectal CD in Cleveland Clinic Florida (America) and 85 patients with colorectal CD in the 301 Hospital(China) were enrolled in the study. Data of two groups,including demographics, clinical characteristics, extraintestinal manifestations, presenting symptoms, location and pathological characteristics,were compared.

Solitary rectal ulcer syndrome: clinical findings, surgical treatment, and outcomes.

Background: Solitary rectal ulcer syndrome (SRUS) is a rare disorder often misdiagnosed as a malignant ulcer. Histopathological features of SRUS are characteristic and pathognomonic; nevertheless, the endoscopic and clinical presentations may be confusing. The aim of the present study was to assess the clinical findings, surgical treatment, and outcomes in patients who suffer from SRUS.

[Expression and clinical significance of LRP16 gene in human breast cancer].

Background & Objective: Estrogen directly up-regulates LRP16 gene expression via activating its receptor (ER), and the overexpression of LRP16 promotes the proliferation of human breast cancer cells. This study was to detect the mRNA level of LRP16 gene in breast cancer, and investigate its correlation to the clinicopathologic features.

Methods: The mRNA level of LRP16 in carcinoma and matched peritumor tissues from 22 breast cancer patients was detected by Northern blot, and that in the tissues from 30 patients was detected by semi-quantitative reverse transcription-polymerase chain reaction (RT-PCR).

[Surgery for extraperitoneal pelvic neoplasms].

Objective: To evaluate the methods of surgery for extraperitoneal pelvic neoplasms.

Methods: Clinical data related to surgery of 84 cases of extraperitoneal pelvic neoplasms were extracted and retrospectively analyzed.

Results: All 84 patients underwent operations, including one of them who received 4 operations within 6 months for resection of a single tumor.

[Effect of peroxisome proliferator-activated receptors activators on plasminogen activator inhibitor-1 expression in HepG-2 cells].

Aim: To investigate the effect of different peroxisome proliferator-activated receptors (PPARs) activators on plasminogen activator inhibitor-1 in HepG-2 cell line and explore the effect of PPARs on PAL-1 gene expression.

Methods: Stearic acid, oleic acid, linoleic acid, fenofibrate, pioglitazone were used in the treatment of HepG-2 cell culture. The level of PAI-1 and PPARs mRNA was measured by reverse transcription-polymerase chain reaction (RT-PCR) and the level of PAI-1 activity and PPARs protein was determined by colorimetric assay and western blotting respectively.

[An experimental research on inhibitory action of skeletal muscle conditioned medium on metastases of lung carcinomas].

Background & Objective: Malignant tumors spread and metastasize in the majority of the organs, but are very rare in skeletal muscles. This study was conducted to explore the effect of organic microenvironment of skeletal muscles on the proliferation of pulmonary large cell carcinomas with different metastatic potential and to investigate the mechanism of the rarity of metastases in skeletal muscles.

Methods: Primary culture of newborn Wistar rat skeletal muscle cells was established, and the murine skeletal muscle conditioned medium(MMCM)was prepared to test its effect in vitro on pulmonary large cell carcinomas with different metastatic potential (PLA-801C with lower potential and PLA-801D with relatively higher potential) by MTT assay.