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HSP90 protein was over-expressed in MM patients, and was correlated with β2-microglobulin, ISS stage and OS of MM patients. To observe the changes of serum metabolites in patients with multiple myeloma (MM) by metabonomics, and explore the potential biomarkers for diagnosis, prognosis, and progression of MM. Serum samples were collected from 26 patients with MM and 50 healthy controls. The data detected by liquid chromatography-mass spectrometry (LC-MS) was input into SIMCA-14.0 software for multivariate statistical analysis. Principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA), and orthogonal partial least squares discriminant analysis (OPLS-DA) were used to analyze the changes of metabolites. The metabolic change of uric acid and trans-vaccenic acid in serum samples of MM patients was 9.39 times and 2.77 times of these in healthy people, respectively, which were significantly higher than those of healthy people, and the difference was statistically significant(P<0.01). Uric acid and trans-vaccenic acid are expected to be important metabolic indicators for the diagnosis, prognosis, and efficacy evaluation of MM, thus providing some clues for the pathogenesis of MM. Uric acid and trans-vaccenic acid are expected to be important metabolic indicators for the diagnosis, prognosis, and efficacy evaluation of MM, thus providing some clues for the pathogenesis of MM. To study the effect of PX-12 on apoptosis of multiple myeloma (MM) cell line induced by bortezomib. MM cell line H929 cells were divided into PX-12 group, bortezomib group, combination group, and control group. 5.0 μmol/L PX-12, 20 nmol/L bortezomib, combination of the two drugs, and DMSO were given to the above mentioned group, respectively. After culture for 24, 48, and 72 hours, the changes of cell viability were observed, the MM cell activity was detected by MTT method, and the cell cycle distribution and apoptosis of each group was detected by flow cytometry. The intracellular ROS level was measured by H DCFDA probe labeling. MTT assay showed that after culture for 72 hours, the activity of H929 cells in PX-12 group (P<0.05) and bortezomib group (P<0.01) was significantly lower than that in the control group, while that in the combination group was decreased most significantly (P<0.01). After culture for 48 hours, cells in G1 phase in PX-12 group was decreased to 40%, while cells in S pha cell line H929 induced by bortezomib, which may be caused by increasing of ROS level. To investigate the clinicopathological features of intestinal diffuse large B-cell lymphoma (DLBCL). The clinical features, pathological morphology, immunophenotype, and EBER in situ hybridization of 136 DLBCL patients diagnosed in Jinan People's Hospital Affiliated to Shandong First Medical University from January 2007 to October 2014 were analyzed retrospectively. A total of 136 DLBCL samples were obtained, the DLBCL sites were categorized as duodenum (n=23), ileocecal region (n=63), other small intestine (n=29), rectum (n=7), and other large intestine (n=14). Survival curves for the DLBCL patients were plotted using the Kaplan-Meier method and judged by the Log-rank test. Patients with DLBCL of the ileocecal region and other small intestine except duodenum were mainly male (P=0.042), and had a higher proportion of limited-stage tumors(P=0.015), and lower International Prognostic Index (IPI) (P=0.001). Patients with DLBCL of ileocecal region had higher incidence of lactate dehydrogenase elevation (P=0s the most primary site. Patients with DLBCL of the ileocecal region and small intestine except duodenum have low IPI, high proportion of limited-stage tumors, low level of lactate dehydrogenase, high incidence of intestinal obstruction or perforation, and low incidence of inert lymphoma. https://www.selleckchem.com/products/iberdomide.html The EBER1 positive rate of DLBCL in duodenal is higher. The intestinal DLBCL is commonly observed in male, and ileocecal is the most primary site. Patients with DLBCL of the ileocecal region and small intestine except duodenum have low IPI, high proportion of limited-stage tumors, low level of lactate dehydrogenase, high incidence of intestinal obstruction or perforation, and low incidence of inert lymphoma. The EBER1 positive rate of DLBCL in duodenal is higher. To investigate the effect of autophagy on the drug resistance of different human lymphoma cells. Human Burkitt's lymphoma cell Daudi, human B lymphoma cell SUDHL-4, and human mantle cell lymphoma cell JeKo-1 were taken as the research subjects. The expression of Atg5 was inhibited by the treatments of autophagy inhibitors or stable interference via lentivirus infection. The autophagy activity of B lymphoma cell was changed, and the changes of lymphoma cells to the drug resistance of ADR and VCR was observed. JeKo-1 cells showed the strongest resistance to ADR and VCR, followed by SUDHL-4, and Daudi cells showed the weakest resistance to ADR and VCR. At the same time, JeKo-1 cells showed the strongest autophagy activity, followed by SUDHL-4, and Daudi cells showed the weakest autophagy activity. After the treatments of autophagy inhibitors or stable Atg5 interference, the resistance of lymphoma cells to ADR and VCR was significantly weakened, and there was the positive correlation at the drug resistance and the autophagy activity of B lymphoma cell. The higher autophagy activity in lymphoma cells, the lower chemotherapy resistance of the lymphoma cells after autophagy was inhibited. The higher autophagy activity in lymphoma cells, the lower chemotherapy resistance of the lymphoma cells after autophagy was inhibited. To investigate the effect of long non-coding RNA-TUC338 on the proliferation and migration of lymphoma cells. The expression of TUC338 in different lymphoma cells was detected by fluorescence quantitative PCR, cell proliferation by sulforhodamine B (SRB) assay, migration of lymphoma cells by transwell assay, and protein expression in PI3K/AKT signaling pathway by Western blot. The expression levels of TUC338 in lymphoma cells Daudi, U937, BC-3, and Raji significantly increased in comparison with human normal T lymphocytes H9 (t=13.277, 10.103, 16.200, and 26.687, P=0.002, 0.005, 0.001, and 0.000). Compared with NC-siRNA group, the number of cells crossing the chamber of TUC338-siRNA group was significantly reduced (t=30.508, P=0.000), the protein expression levels of p-PI3K and p-AKT significantly decreased (t=16.872 and 18.371, P=0.000 and 0.000), and OD absorbance values at 24 h, 48 h, and 72 h were significantly lower (P<0.05). The expression of TUC338 significantly increases in lymphoma cells, and silence of TUC338 effectively inhibits the activation of PI3K/AKT signaling pathway, thereby inhibiting the proliferation and migration of lymphoma cells, which has a potential application value in diagnosis and treatment of lymphoma.
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