Both electrical properties and biomarkers of biological tissues can be used to distinguish between normal and diseased tissues, and the correlations between them are critical for clinical applications of conductivity (σ) and permittivity (ε); however, these correlations remain unknown. This study aimed to investigate potential correlations between electrical characteristics and biomarkers of breast cancer cells (BCC). Changes in σ and ε of different components in suspensions of normal cells and BCC were analyzed in the range of 200 kHz-5 MHz.
View Article and Find Full Text PDFAlthough colorectal cancer is the leading cause of death in patients with liver metastases, there are no efficient treatments available. Oncolytic virus therapy, a new type of tumor therapy, has become a potential solution. With the goal of improving the treatment of advanced colorectal cancer, we applied oncolytic herpes simplex virus type 2 (oHSV2) in a mouse model of colorectal cancer with liver metastasis.
View Article and Find Full Text PDFBackground: Chemotherapy has improved the survival of non-small cell lung cancer (NSCLC) patients over the past few decades. However, there have not been any epidemiological studies on chemotherapy for Chinese NSCLC patients.
Patients And Methods: The patients diagnosed as primary lung cancer between January 1, 2005, and December 31, 2014, in eight hospitals from eight provinces in China were retrospectively reviewed.
Oncolytic viruses are promising immunoreagents. Numerous studies have shown that oncolytic virotherapy is effective for many tumors. Herein, we investigated the therapeutic effect of oHSV2, an oncolytic type 2 herpes simplex virus, on mouse colon carcinoma.
View Article and Find Full Text PDFThe role of postoperative radiotherapy (PORT) in the treatment of patients with completely resected non-small cell lung cancer (NSCLC) is not clear. Few study explored the trends of the PORT use. In this study, we examine the status of PORT use of completely resected NSCLC in mainland China.
View Article and Find Full Text PDFBackground: Most lung cancer patients are diagnosed after the onset of symptoms. However, whether the symptoms of lung cancer were independently associated with the diagnosis of lung cancer is unknown, especially in the Chinese population.
Methods: We conducted a 10 years (2005-2014) nationwide multicenter retrospective clinical epidemiology study of lung cancer patients diagnosed in China.
Liver metastasis represents the most prominent metastasis of colorectal cancer (CRC) and is the leading cause of CRC mortality, making the early prevention of this event very important. While current CRC therapies include surgery, radiotherapy and chemotherapy, no effective treatment option for CRC liver metastasis (CRLM) exists. Furthermore, the effects of currently available metastatic CRC drugs are frequently limited by their toxicity and side effects.
View Article and Find Full Text PDFObjectives: This study aimed to explore the clinical profile and its trajectory of lung cancer on clinicopathological characteristics and medical service utilization in China.
Methods: Patients diagnosed with primary lung cancer in tertiary hospitals during 2005-14 were selected from seven geographic regions of China. Data on clinical characteristics and medical service utilization was extracted from medical record, and the ten-year trends were explored.
There is inconsistent evidence of associations between socioeconomic status (SES) and lung cancer stage in non-Chinese populations up to now. We set out to determine how SES affects stage at diagnosis at both individual and area levels, from a hospital-based multicenter 10-year (2005-2014) retrospective clinical epidemiological study of 7184 primary lung cancer patients in mainland China. Individual-level SES data were measured based on two indicators from case report forms of the study: an individual's education and occupation.
View Article and Find Full Text PDFPrimary primitive neuroectodermal tumor (PNET) of the cervix is extremely rare. Only few previous researches have reported on morphologic descriptions in frozen sections or changes in this tumor after radiotherapy or chemotherapy treatments. In the following study we investigated two cases of PNET in cervix.
View Article and Find Full Text PDFZhonghua Zhong Liu Za Zhi
October 2014
Objective: The aim of this study was to find out the value of chromosome aneuploidy in early diagnosis and prediction of postoperative recurrence of gastric adenocarcinoma (GAC).
Methods: Tissue samples, including 49 GAC, pairing pericancerous mucosa and normal gastric mucosa from the distant cutting margin were use in this study. Two centromere probes, Cen11 and Cen20 specific for chromosomes 11 and 20 were analyzed by FISH .
Background: The capacity of toll-like receptor (TLR) 7/8 agonist-conjugated hepatitis B virus (HBV) proteins (HBV-Ag) to overcome established hepatitis B surface antigen (HBsAg)-specific immune tolerance was explored.
Methods: A TLR7/8 agonist, CL097, was conjugated with alum-absorbed HBsAg and hepatitis B core antigen (HBcAg), as confirmed by ultra performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q/TOF MS). Mice from two independently generated HBV-transgenic (HBV-Tg) colonies, C57BL/6J-TgN (AlblHBV) 44Bri/J mice and C57BL/6-HBV-1.
Zhonghua Zhong Liu Za Zhi
July 2014
Objective: The aim of this study was to investigate the clinicopathological features of different histological types of primary gastric neuroendocrine neoplasms (including the esophagogastric junction), and to analyze the characteristics and difficulties in diagnosis of all the subtypes of this disease.
Methods: 75 cases of primary gastric neuroendocrine neoplasms (including the esophagogastric junction) were included in this study. The expressions of several markers including somatostatin, synaptophysin, chromogranin A, CD56, S-100, neuron-specific enolase and CD57 were assayed in all the specimens by immunohistochemical staining, and their significance in the diagnosis and prognosis of gastric neuroendocrine neoplasms were assessed.
Zhonghua Yi Xue Za Zhi
April 2014
Objective: To analyze the prognostic factors and long-term surgical efficacies of rectal neuroendocrine neoplasm (NEN).
Methods: The clinical and pathological data of 141 patients with rectal NENs treated between January 1999 and November 2012 were retrospectively analyzed. The Kaplan-Meier method was used to calculate survival time and Cox regression to analyze the clinicopathological factors correlating with patient prognosis.
Oncolytic viruses are promising treatments for many kinds of solid tumors. In this study, we constructed a novel oncolytic herpes simplex virus type 2: oHSV2. We investigated the cytopathic effects of oHSV2 in vitro and tested its antitumor efficacy in a 4T1 breast cancer model.
View Article and Find Full Text PDFZhonghua Zhong Liu Za Zhi
June 2012
Objective: To analyze the clinicopathological features of intestinal neuroendocrine neoplasms.
Methods: The clinicopathological features of 114 patients with intestinal neuroendocrine neoplasms treated in our hospital from April 1999 to March 2011 were retrospectively reviewed, including tumor location, histological classification, muscle invasion, metastasis and clinical data. Immunohistochemical SP staining was applied to examine the expression of 15 markers in the tumor specimens.
Our purpose was to study the accuracy of using endorectal ultrasonography (ERUS) with sterile coupling gels filling the rectum in the preoperative T-staging of rectal carcinoma. A total of 189 patients with confirmed rectal carcinoma were recruited. All underwent ERUS and surgery within the week following sonography.
View Article and Find Full Text PDFObjective: To improve the diagnosis and treatment of non-ductal pancreatic adenocarcinoma-occupying lesions.
Methods: A retrospective analysis was made for 114 cases of pancreatic non-ductal adenocarcinoma-occupying pathologically confirmed lesions.
Results: (1) There were 36 males (31.
Objective: The purpose of this study was to investigate the markers which can be used in auxiliary diagnosis of gastric adenocarcinoma (GAC), and their correlation with their clinicopathological features.
Methods: 122 surgical specimens including 99 gastric adenocarcinoma (GAC), 18 adjacent mucosa and 5 distal normal mucosa were collected, and analyzed by in situ hybridization (FISH). The centromere probe cen17, specific for chromosome 17, which was reported to be frequently amplified in GAC, was selected for the FISH analysis.
Objective: To study the neoplasm with perivascular epithelioid cell differentiation (PEComa) with respect to their morphologic, immunohistochemical and clinical phenotypes.
Methods: Three PEComas were included in this study, one located at the left uterine horn, and two presented as a mass in the uterine corpus. The tumors were examined by histopathology and immunohistochemistry.
Hepatocellular carcinoma (HCC) is one of the most common diseases worldwide, with extremely poor prognosis due to failure in diagnosing it early. Alpha-fetoprotein (AFP) is the only available biomarker for HCC diagnosis; however, its use in the early detection of HCC is limited, especially because about one-third of patients afflicted with HCC have normal levels of serum AFP. Thus, identifying additional biomarkers that may be used in combination with AFP to improve early detection of HCC is greatly needed.
View Article and Find Full Text PDFA well-known observation with respect to cancer biology is that transformed cells display a disturbed cytoskeleton. The underlying mechanisms, however, remain only partly understood. In an effort to identify possible mechanisms, we compared the proteome of pancreatic cancer with matched normal pancreas and observed diminished protein levels of gelsolin--an actin filament severing and capping protein of crucial importance for maintaining cytoskeletal integrity--in pancreatic cancer.
View Article and Find Full Text PDFAim: To investigate the expression of annexin I in pancreatic cancer and its relationship with the clinicopathologic factors, and to evaluate its potential clinical significance.
Methods: Annexin I expression was analyzed by Western blot and immunohistochemical staining in pancreatic adenocarcinoma and multi-tissue microarrays (MTAs).
Results: Western blot analysis showed that annexin I was overexpressed in 84.
Objective: To study the clinicopathological features of gastric neuroendocrine tumors.
Methods: Twenty cases were reviewed. The specimens were formalin-fixed, paraffin-embedded and immunostained by S-P method.