Antineoplastic Agents ; therapeutic use ; Carcinoma, Non-Small-Cell Lung ; drug therapy ; genetics ; Drug Delivery Systems ; Erlotinib Hydrochloride ; Female ; Genes, erbB-1 ; Humans ; Lung Neoplasms ; drug therapy ; genetics ; Male ; Mutation ; Protein Kinase Inhibitors ; therapeutic use ; Quinazolines ; therapeutic use ; Receptor, Epidermal Growth Factor ; antagonists & inhibitors ; genetics

To observe a PPAR-alpha agonist effect of N-oleoylethanolamine (OEA) on CB2 (cannabinoid receptor 2), an anti-inflammatory receptor in vascular endothelial cell, healthy HUVECs and TNF-alpha induced HUVECs were used to establish a human vascular endothelial cell inflammatory model. Different doses of OEA (10, 50 and 100 micromol x L(-1)) had been given to HUVECs, cultured at 37 degrees C for 7 h and then collected the total protein and total mRNA. CB2 protein expression was detected by Western blotting and CB2 mRNA expression was assayed by real-time PCR. As the results shown, OEA (10 and 50 micromol x L(-1)) could induce the CB2 protein and mRNA expression, but not 100 micromol x L(-1). To detect if anti-inflammation effect of OEA is partly through CB2, CB2 inhibitor AM630 was used to inhibit HUVEC CB2 expression, then the VCAM-1 expression induced by TNF-alpha was detected, or THP-1 adhere to TNF-alpha induced HUVECs was examined. OEA (50 micromol x L(-1)) could inhibit TNF-alpha induced VCAM-1 expression and THP-1 adhere to HUVECs, these effects could be partly inhibited by a CB2 inhibitor AM630. The anti-inflammation effect of OEA is induced by PPAR-alpha and CB2, suggesting that CB2 signaling could be a target for anti-atherosclerosis, OEA have wide effect in anti-inflammation, it may have better therapeutic potential in anti-inflammation in HUVECs, thus achieving anti-atherosclerosis effect.
Anti-Inflammatory Agents ; pharmacology ; Atherosclerosis ; pathology ; Cell Adhesion ; drug effects ; Cells, Cultured ; Endocannabinoids ; pharmacology ; Endothelial Cells ; cytology ; metabolism ; Ethanolamines ; pharmacology ; Humans ; Indoles ; pharmacology ; Monocytes ; drug effects ; Oleic Acids ; pharmacology ; PPAR alpha ; antagonists & inhibitors ; RNA, Messenger ; metabolism ; Receptor, Cannabinoid, CB2 ; antagonists & inhibitors ; genetics ; metabolism ; Tumor Necrosis Factor-alpha ; pharmacology ; Vascular Cell Adhesion Molecule-1 ; metabolism

OBJECTIVETo study the expression of peptidyl-prolyl cis/trans isomerase (PPIase or Pin1) in malignant hematopoietic cells and its relation with cell cycle.

METHODSRealtime quantitative PCR with fluorescence probe hybridization was used to measure expression of Pin1 mRNA in malignant hematopoietic cell lines and normal mononuclear cells separated from bone marrow. HeLa cells were blocked with Thymidine and Nocodazole in different cell phases and then the expression of Pin1 mRNA and protein were detected by realtime-PCR and immunoblotting.

RESULTSThe expression of Pin1 in malignant hematopoietic cell lines was significantly higher than that in normal controls (0.339 +/-0.093 compared with 0.038 +/-0.005, P<0.01). Its expression in myeloid malignant hematopoietic cell lines was significantly higher than that in normal controls (0.388 +/-0.115 compared with 0.038 +/-0.005, P<0.01) and so was the malignant lymphocytic cell lines (0.226 +/-0.166 compared with 0.038 +/-0.005, P<0.01). The expression of Pin1 was closely correlated with cell cycle. It was the highest in G1 phase and the lowest in S phase (110.762 +/-16.737 compared with 4.080 +/-0.634, P<0.01).

CONCLUSIONPin1 is overexpressed in malignant hematopoietic cell lines and its expression is different during cell cycle that is highest in G1 phase and lowest in S phase.

Cell Cycle ; physiology ; G1 Phase ; Humans ; Leukemia, Lymphoid ; enzymology ; pathology ; Leukemia, Myeloid ; enzymology ; pathology ; Peptidylprolyl Isomerase ; biosynthesis ; genetics ; RNA, Messenger ; biosynthesis ; genetics ; S Phase ; Tumor Cells, Cultured

OBJECTIVETo study the expression of human telomere repeat binding factor 1 (TRF1) to investigate the correlation of telomerase activity with acute leukemia.

METHODSLeukemic cells were collected from 30 cases of acute leukemia. Realtime quantitative PCR with fluorescence probe hybridization was used to measure expression of TRF1 and hTERT mRNA in leukemic cells.

RESULTSTRF1 mRNA expression was 0.0126 (0.0127-0.0546) in acute non-lymphocytic leukemia (ANLL), which was lower than that in normal mononuclear cells [0.0457 (0.00839-0.262), P<0.001], but its expression in acute lymphoblastic leukemia (ALL) cells [0.0745 (1.92 x 10(-6)-0.193)] had no significant difference compared with that in normal mononuclear cells. TRF1 expression in ANLL cells was significantly lower than that in ALL cells (P=0.001). The expressions of TRF1 mRNA in AL cells and normal mononuclear cells had no significant correlation with expression of hTERT mRNA (r=-0.173, P=0.207).

CONCLUSIONThe expression of TRF1 is lower in ANLL cells, which indicates TRF1 may have some effect on telomerase activity by regulating telomere length in ANLL cells.

Adolescent ; Adult ; Aged ; Female ; Humans ; Leukemia, Myeloid, Acute ; enzymology ; metabolism ; Male ; Middle Aged ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; enzymology ; metabolism ; RNA, Messenger ; biosynthesis ; genetics ; Telomerase ; metabolism ; Telomeric Repeat Binding Protein 1 ; biosynthesis ; genetics

OBJECTIVETo investigate the ways testosterone influences the murine bone marrow-derived macrophages (BMMs) and how testosterone affects the function of BMMs after bound to their membrane surface.

METHODSBMMs were cultured in vitro, their total RNA and proteins isolated, and the expression of intracellular androgen receptor (AR) detected through RT-PCR and Western blotting. The binding site of testosterone (T) to the membrane surface of BMMs was observed by confocal laser scanning microscopy after T-BSA-FITC incubation. Moreover, the intracellular Ca2+ was tested by Fura-2 method, and the influence of ionic currents on BMMs plasma membrane induced by testosterone was examined by the whole cell patch-clamp.

RESULTSRT-PCR and Western blotting failed to detect intracellular ARs in BMMs, but confocal laser scanning microscopy showed testosterone to be bound to the membrane surface of BMMs by impermeable T-BSA-FITC, inducing a rapid rise in the intracellular free Ca2+ concentration ([Ca2+]i) of Fura-2 loaded BMMs, predominantly due to the influx of extracellular Ca2+ through Ni2+ -blockable Ca2+ channels in the plasma membrane. Similarly, the patch-clamp technique revealed T-induced calcium influx in BMMs.

CONCLUSIONIt is reasonable to assume that the testosterone receptor exists on the plasma membranes, and testosterone act through unconventional plasma membrane receptors, induce Ca2+ influx and a rapid rise in the intracellular Ca2+ concentration, and influence the function of BMMs.

Animals ; Blotting, Western ; Calcium ; metabolism ; Calcium Channels ; physiology ; Cell Membrane ; metabolism ; Cells, Cultured ; Female ; Macrophages ; cytology ; metabolism ; physiology ; Membrane Potentials ; Mice ; Mice, Inbred C57BL ; Microscopy, Confocal ; Protein Binding ; Receptors, Androgen ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Testosterone ; metabolism

BACKGROUNDThe prevalence of chronic pancreatitis has increased during recent years in Asia-Pacific areas as well as in China. The etiologies vary in different regions and periods. This study aimed to investigate the changing etiologies of chronic pancreatitis within 20 years at Peking Union Medical College Hospital in China.

METHODSRetrospective analysis of the etiologies of 636 cases of chronic pancreatitis at Peking Union Medical College Hospital from 1990 to 2010 was performed. Patients were divided into two groups according to two time periods (1990 - 2000 and 2001 - 2010). Statistical analysis was performed using the chi-square test.

RESULTSThe morbidity rate of chronic pancreatitis in China has recently increased. The main etiology changed from biliary diseases in the 1990s (decreased from 36.8% to 28.1%) to alcohol abuse after the year 2000 (increased from 26.5% to 36.8%). The main etiology of biliary diseases is stones in the cholecyst or bile duct, and the percentage of cholecystitis cases has increased. Autoimmune disease, including autoimmune pancreatitis, has increased quickly and currently accounts for 7.3% of cases because a greater number of autoimmune pancreatitis cases are being diagnosed. Approximately 9.5% of chronic pancreatitis cases are caused by multiple factors such as alcohol abuse and bile duct stones. Other factors include cholecystectomy and acute pancreatitis.

CONCLUSIONSThe main etiology of chronic pancreatitis has changed from biliary disease to alcohol abuse in recent years. Autoimmune factors have also obviously increased.

Adult ; Alcoholism ; complications ; Bile Duct Diseases ; complications ; China ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Pancreatitis, Chronic ; epidemiology ; etiology ; immunology ; Retrospective Studies ; Risk Factors

Objective To evaluate the effect for stroke(cerebral infarction)at acute stage intervened by traditional Chinese medicine(TCM) clinical pathway. Methods A retrospective analysis was carried out in the patients before and after intervention by TCM clinical pathway during the year of 2013-2016. The outcomes included the entrance rate,completion percentage,aberration rate,severity,hospitalization time,and hospitalization fee as well as functional prognosis 30 d after discharge. Results A total of 792 cases was included,241 cases admitted in the year of 2013, 191 in the year of 2014, 135 in the year of 2015, and 225 in the year of 2016. In the year of 2014-2016,the entrance rate,completion percentage,hospitalization time,hospitalization fee,critical case percentage,and gender constituent ratio were steadily(P > 0.05). Modified Rankin Scale(mRS)for short-term functional prognosis mRS 0 ~ 2 percentage and aberration rate in the year of 2016 were superior to those in the year of 2014 and 2015(P < 0.05). Functional improvement on discharge day 30 in the year of 2014-2016 was superior to that in the year of 2013(P < 0.05). The hospitalization time and hospitalization fee in the year of 2014-2016 were a liffle higher than those in the year of 2013(P < 0.05), showing no obvious increase. Conclusion The application of TCM clinical pathway can make the diagnosis and treatment procedure of stroke at acute stage standardized,enhance the therapeutic effect,achieve or even exceed the goal of manage scheme.

Objective: To study the effect of WT1 expression on the prognosis of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in acute leukemia (AL) and its significance as molecular marker to dynamically monitor minimal residual disease (MRD) . Methods: Retrospectively analyzed those AL patients who underwent allo-HSCT in the First Hospital Affiliated to Zhejiang University School of Medicine during Jan 2016 to Dec 2017, a total number of 314 cases, 163 males and 151 females, median age was 30 (9-64) years old. Comparing the difference of WT1 expression at diagnosed, pre-HSCT and after HSCT. Using the receiver operating characteristic (ROC) curve to determine the WT1 threshold at different time so as to predict relapse. The threshold of WT1 expression before transplantation was 1.010%, within 3 months after HSCT was 0.079% and 6 months after HSCT was 0.375%. According to these thresholds, WT1 positive patients were divided into low expression groups and high expression groups. Analyzed the relationship between overall survival (OS) , disease-free survival (DFS) , cumulative incidence of relapse (CIR) and WT1 expression. Results: The OS and DFS of high expression group pre-HSCT were lower than low expression group [69.2% (9/13) vs 89.1% (57/64) , χ(2)=4.086, P=0.043; 53.8% (7/13) vs 87.5% (56/64) , χ(2)=9.766, P=0.002], CIR was higher than low expression group [30.8% (4/13) vs 7.8% (5/64) , P=0.017]. There was no significant difference of OS and DFS between high expression and low expression group of 3 months after HSCT (P=0.558, P=0.269) . The OS and DFS of high expression group of 6 months after transplantation were both lower than low expression group (P=0.049, P=0.035) . Multivariate analysis showed that WT1>0.375% when 6 months after transplantation was the only independent prognostic factor for shorter DFS (P=0.022) . There was no statistically significant difference in CIR between the high-expression group and the low-expression group 3 months after transplantation and 6 months after transplantation (P=0.114, P=0.306) . Conclusion: High expression of WT1 before and after HSCT was an adverse prognosis factor. It is of clinical practical value to use WT1 as a transplant recommendation index for patients with acute leukemia and as a marker to monitor MRD dynamically.
Adolescent ; Adult ; Child ; Female ; Hematopoietic Stem Cell Transplantation ; Humans ; Leukemia, Myeloid, Acute/therapy* ; Male ; Middle Aged ; Neoplasm, Residual ; Prognosis ; Retrospective Studies ; Transplantation, Homologous ; WT1 Proteins ; Young Adult

BACKGROUND/AIMS: Patients with active ulcerative colitis (UC) have elevated levels of activated myeloid-derived leukocytes as a source of inflammatory cytokines. The selective depletion of these leukocytes by adsorptive granulocyte/monocyte apheresis (GMA) with an Adacolumn should alleviate inflammation, promote remission and enhance drug efficacy. However, studies have reported contrasting efficacy outcomes based on patients’ baseline demographic variables. This study was undertaken to understand the demographic features of GMA responders and nonresponders. METHODS: This was a multicenter study in China involving four institutions and 34 patients with active UC. Baseline conventional medications were continued without changing the dosage. The treatment efficacy was evaluated based on the endoscopic activity index and the Mayo score. RESULTS: Thirty of the 34 patients completed all 10 GMA treatment sessions. The overall efficacy rate was 70.59%. The receiver operating characteristic analysis showed that the area under the curve was approximately 0.766 for a Mayo score of ≤5.5 with 0.273 specificity and 0.857 sensitivity (Youden index, 0.584) for GMA responders. No GMA-related serious adverse events were observed. CONCLUSIONS: The overall efficacy of GMA in patients with active UC who were taking first-line medications or were corticosteroid refractory was encouraging. Additionally, GMA was well tolerated and had a good safety profile.
Blood Component Removal* ; China* ; Colitis, Ulcerative* ; Cytokines ; Granulocytes* ; Humans ; Inflammation ; Leukocytes ; Monocytes* ; ROC Curve ; Sensitivity and Specificity ; Treatment Outcome ; Ulcer*

This study was aimed to detect the expression level of cmtm 5 (CKLF-like MARVEL transmembrane domain containing member 5) gene in the bone marrow cells from patients with multiple myeloma (MM), and to investigate the correlation between the expression level of cmtm5 and various clinical characteristics. Real-time quantitative reverse transcription polymerase chain reaction (RQ-RT-PCR) was used to measure the expression levels of cmtm5 gene in the bone marrow cells collected from MM patients, and the MM cell lines, namely, RPMI8226 and CZ1 cells. The normal donor marrow specimens were used as the reference. The ratio of cmtm5 copy number to abl (Abelson murine leukemia viral oncogene homolog) gene copy number was used for indicating the expression level. The results showed that the expression level of cmtm5 gene was significantly down-regulated in bone marrow cells of 51 untreated or relapsed/refractory MM patient as compared to those of normal donor marrow cells (0.047+/-0.062 for the untreated or relapsed/refractory MM patients versus 0.255+/-0.333 for the normal, p<0.01). According to the International Staging System (ISS), the cmtm5 expression level in marrow cells of patients in ISS III stage was significantly lower than that in patients in ISS I stage (0.034+/-0.034 for the ISS III stage versus 0.103+/-0.109 for ISSI stage, p<0.01). Similarly, lower expression levels of cmtm5 gene were also found in two human MM cell lines (0.014+/-0.009 for RPMI8226 cells and 0.004+/-0.006 for CZ1 cells). After the MM patients were effectively treated, their expression levels of cmtm5 gene significantly increased (0.020+/-0.005 for the untreated patients versus 0.227+/-0.038 for the effectively treated patients, p<0.01). A significant negative correlation was observed between the expression level of cmtm5 gene and the number of bone marrow plasma cells (r=-0.307, p<0.05). However, the correlation was not found between the expression level of cmtm5 gene and the clinical characteristics, such as gender, age, hemoglobin level, or M-protein level, etc. It is concluded that the expression level of cmtm5 gene is abnormally lower in the bone marrow cells from the MM patients, and are associated with ISS stages. Furthermore, the expression level of cmtm5 gene is negatively correlated with the number of bone marrow abnormal plasma cells in MM patients, which suggests that the abnormally lower expression of cmtm5 may be involved in the pathogenesis of the MM patients.
Adult ; Aged ; Aged, 80 and over ; Bone Marrow Cells ; metabolism ; pathology ; Case-Control Studies ; Chemokines ; genetics ; metabolism ; Female ; Humans ; MARVEL Domain-Containing Proteins ; Male ; Middle Aged ; Multiple Myeloma ; metabolism ; pathology ; Neoplasm Staging ; Tumor Suppressor Proteins ; genetics ; metabolism ; Young Adult