Serum proteomics in patients with RAEB myelodysplastic syndromes / 南方医科大学学报

<p><b>OBJECTIVE</b>To screen the molecular markers for refractory anemia with excess blasts in transformation (RAEB) in myelodysplastic syndromes (MDS) by serum proteome profiling.</p><p><b>METHODS</b>The serum protein were isolated from patients with RAEB, acute myeloid leukemia or normal subjects by 2-dimensional electrophoresis (2-DE), and the electrophoresis gels were obtained to identify the differentially reacting protein spots. The replica gels of the differentially reacting proteins were analyzed to locate the matching protein spots, which were identified by peptide mass fingerprint based on matrix-assisted laser desorption/ionization time of-flight mass spectrometry (MALDI-TOF-MS) and database searching.</p><p><b>RESULTS</b>Seven differentially expressed proteins in RAEB were found by 2-DE. Of the 7 proteins, 4 were identified by MALDI-TOF-MS to have significantly differential expression in RAEB, including dipeptidyl peptidase (DPP/CD26), polymerase (DNA directed) kappa, PRO2044 and an albumin-like protein.</p><p><b>CONCLUSION</b>2-DE-based serum proteome profiling helps identify serum proteomic biomarkers related to MDS. DDP/CD26 has increased expression in the serum in RAEB subtype MDS, suggesting its possible role in advanced MDS.</p>

Prognostic factor analysis of 116 cases of primary gastrointestinal non-Hodgkin's lymphoma / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the factors that affect the prognosis of primary gastrointestinal non-Hodgkin's lymphoma (PGI-NHL).</p><p><b>METHODS</b>The clinical data of 116 patients with pathologically confirmed PGI-NHL we treated from January 1993 to December 2003 were analyzed retrospectively. Kaplan-Meier survival analysis was used for analyzing the survival of the patients, and Log-rank test was performed to compare the survival rates in relation to different prognostic factors.</p><p><b>RESULTS</b>The 3-year and 5-year survival rates of the patients were 63.8% (74/116) and 48.2% (40/83), respectively. Univariate analysis revealed that the factors affecting the prognosis of the patients included the presence of B symptom, tumor size, clinical stage, pathological type, depth of invasion, and treatment methods. The patients with B symptom, tumor size no less than 10 cm, advanced clinical stage (stages III(E) and IV(E)), T-cell type, and invasion beyond the serosa who received only surgical management had poorer prognosis than those free of B symptom with tumor size <10 cm, early clinical stage (stages I(E) and II(E)), B-cell type, and submucosal or serosal invasion managed with chemotherapy alone or in combination with surgery. Multivariate analysis showed that B symptom, tumor size no less than 10 cm, advanced clinical stage (stages III(E) and IV(E)), T-cell type, invasion beyond the serosa, and surgery alone were independently associated with poor prognosis.</p><p><b>CONCLUSION</b>The tumor size, clinical stage, pathological type, treatment methods are the independent factors affecting the prognosis of patients with PGI-NHL.</p>

Postoperative abdominal endogenic field hyperthermia combined with FOLFOX regimen in the treatment of 68 cases of advanced gastric cancer / 南方医科大学学报

<p><b>OBJECTIVE</b>To assess the therapeutic efficacy and adverse effects of endogenetic field hyperthermia (EFH) in combination with L-OHP /LV / 5-FU in the treatment of advanced gastric cancer.</p><p><b>METHODS</b>This study included 147 surgical patients with stage II-IV gastric cancer, who received postoperative chemotherapy with FOLFOX (L-OHP 85 mg /m square, 3 h intravenous infusion, followed by infusion of LV at 200 mg /m square in 2 h, intravenous injection of 5-Fu at 400 mg /m square, and intravenous infusion of 5-FU at 3000 mg /m square in 48 h). Eight treatment cycles (each lasting for 14 days) were administered. In 68 cases randomly selected from the cohort, EFH was performed on the first and third days (treatment group), but not in the other 79 cases (control group).</p><p><b>RESULTS</b>The response rate was 68.4% in the treatment group and 36.4% in the control group, showing significant difference between them (P<0.05). The 1-year survival rate was 88.2% in the treatment group, similar to the rate of 81.0% in the control group (P< 0.05), but the 3, 5-year survival rates in treatment group (67.6% and 30.9%) was significantly higher than those in the control group (47.6% and 15.4%, P<0.05). The adverse effects were similar between the two groups.</p><p><b>CONCLUSION</b>EFH combined with the chemotherapeutic regimen FOLFOX might improve the therapeutic effect of stage II-IV gastric cancer without obviously increasing the adverse effects.</p>