Expression of PLOD2 in esophageal squamous cell carcinoma and its correlation with invasion and metastasis / 中华病理学杂志

Objective@#To investigate PLOD2 expression in esophageal squamous cell carcinoma, and to explore the potential mechanism by which PLOD2 promotes tumor metastasis.@*Methods@#The expression of PLOD2 in 60 cases of esophageal squamous cell carcinoma (the patients were collected at the first Affiliated Hospital of Xinxiang Medical University, from January 2016 to December 2017) was investigated by immunohistochemistry. Fibrillar collagen formation and collagen deposition were detected by picrosirius red staining. Correlation of PLOD2 expression with clinical pathologic features of the patients was performed using χ2 test and Kaplan-Meier analysis. After EC-109 cells were transfected with LV-vector and LV-over/PLOD2, the expression of PLOD2 was detected by real time PCR and the impact of POLD2 on invasion in EC-109 cells was determined by transwell migration and invasion assays. The expression of PLOD2/AKT epithelial-to-mesenchymal transition signal pathway related proteins was detected by Western blot.@*Results@#The expression level of PLOD2 in esophageal squamous cell carcinoma was 81.7% (49/60 cases),higher than their paired noncancerous tissues(8.3%, 5/60; P<0.01), and correlated significantly with tumor depth of invasion and nodal metastasis (P<0.01). Picrosirius red staining showed that collagen deposition was increased and the degree of fibrillar organization was enhanced in carcinoma tissues that had higher PLOD2 expression. Transwell migration and invasion assays showed that PLOD2 significantly promoted the migration and invasion ability of EC-109 cells. Western blot showed that PLOD2 significantly increased the expression levels of p-FAK, p-AKT and vimentin in EC-109 cells.@*Conclusions@#Esophageal squamous cell carcinoma has a high expression of PLOD2 that correlates with tumor invasion and lymph node metastasis. PLOD2 promotes invasion and metastasis of esophageal squamous cell carcinoma through epithelial-to-mesenchymal transition via FAK/AKT signal pathway.

Influential factors for hospitalization costs regarding the final phase of malignant tumor patients in Shanghai / 中南大学学报(医学版)

Objective:To explore the influential factors for hospitalization costs regarding the final phase of malignant tumor patients in Shanghai,and to explore the relevant policy for reasonable control of hospitalization costs.Methods:A total of 10 065 patients with malignant tumors were enrolled in this study.The multiple linear regression analysis was used to seek the determinants for hospitalization cost of malignant tumor patients during the final phase.Results:The median length of hospital stay was 43 days for the patients,with an average age of (70.73±12.87) years.Among them 61.66％ of hospitalized patients were male and the median hospitalization cost of malignancy was 55 447.84 yuan.Hospitalization cost showed the linear regression relationship with type of health care,hospital level,hospital types,tumor types,length of hospital stay,surgery,age,gender,and time from hospital admission to death.Conclusion:Proximity to death in malignant tumor patients is an important factor for the hospitalization cost.Medical resources should be allocated rationally,and the comprehensive measures should be taken to control the cost reasonably.

Expression of dead box 1 gene in neuroblastoma / 中华实用儿科临床杂志

Objective To detect the expression of dead box 1(DDX1)gene in tumor tissue and pericarcino-matous tissue of clinical neuroblastoma(NB)samples,and explore the relationship between DDX1 and NB. Methods Five cases of pathological specimens in children with NB were chosen from Department of Pathology,the First Affi-liated Hospital of Xinxiang Medical University between January 2012 and December 2014. In the 5 cases,3 cases were male,2 cases were female,the age of 1 - 5 years old,average age(2. 1 ± 1. 6)years. The NB tissue and pericarcino-matous tissue(pericarcinomatous tissue was normal tissue which was at least 2 cm from the tumor tissue)of 5 children were collected and fixed in 40 g/ L formaldehyde solution. Then with the conventional dehydration,embedding,sectio-ning, dewaxing, hydration, antigen repair, add primary antibodies, secondary antibodies, diaminobenzine chromogenic. The expressions of DDX1 in tumor tissue and pericarcinomatous were observed with light microscopy and with semi - quantitative analysis.(1)Staining degree:no staining with 0 score;light staining with 1 score;medium staining with 2 scores;deeply staining with 3 scores.(2)Positive cells proportion:positive cells proportion ﹤ 10% with 0 score;positive cells proportion within 10% - 30% with 1 score;positive cells proportion within 31% - 60% with 2 scores;positive cells proportion ﹥ 61% with 3 scores. Final scores were a half of the sum of staining degree score and positive cells proportion score,final score within 0 -1. 0 with - ,1. 1 -2. 0 with + ,2. 1 - 3. 0 with + + ,3. 1 -5. 0 with + + + . Results DDX1 were expressed in NB and pericarcinomatous tissues,but visible DDX1 positive staining number more and deeper in NB,DDX1 positive staining number less and light in pericarcinomatous tissues. Five cases of pericarcinomatous tissues immunohistochemical semi - quantitative score were negative and final scores were 1. 0 score or less,the mean value was 0. 5 score. NB immunohistochemical semi - quantitative score were+or + +and final scores were 1. 5 score or higher,the mean value was 1. 8 scores,the expressions of DDX1 were sig-nificantly higher in NB than the pericarcinomatous tissues. Conclusions DDX1 is highly expressed in NB,which may contribute to the development of NB. This suggest DDX1 may serve as an oncogene and play a catalytic role in the de-velopment of NB,which provides a clinical evidence for the follow - up study.

Expression of microRNA-191 in T lymphoblastic leukemia/lymphoma and its underlying mechanism / 中华血液学杂志

<p><b>OBJECTIVE</b>To evaluate the correlation between MicroRNA-191 (miR-191) and T lymphoblastic leukemia/lymphoma (T-ALL/LBL) to probe its underlying molecular mechanism.</p><p><b>METHODS</b>The expression of miR-191 was examined by real-time PCR (RT-PCR) in 20 T-ALL/LBL tissue samples and 20 lymphoid reactive hyperplasia (LRH) tissue samples. The correlation between miR-191 and the clinicopathological feature of T-ALL/LBL was analyzed. Antisense miR-191 lentiviral vectors was constructed and transfected into T-ALL/LBL Jukat cells. After transfection, the expression of miR-191 was examined by RT-PCR. The cell activity was evaluated by CCK-8 asssy. The cell cycle and apoptosis were determined by flow cytometry.</p><p><b>RESULTS</b>Compared with LRH samples, the results of RT-PCR showed significant upregulation of miR-191 in 20 T-ALL/LBL tissue samples (1.875±0.079 vs 1.000, P<0.05). The expression level of miR-191 was negatively associated with prognosis. Compared with LV-NC-GFP and control groups, the expression of miR-191 significantly decreased after transfection of antisense miR-191 lentiviral vectors (0.578±0.012 vs 1.011±0.053 and 1.000, P<0.05), the percentages of apoptotic cells and the cell in G0/G1 phase significantly increased (P<0.05).</p><p><b>CONCLUSIONS</b>miR-191 might play a significant role in the development of T-ALL/LBL, implicating a new target for therapy.</p>

Induction effect of icotinib on apoptosis of salivary adenoid cystic carcinoma ACC-M cells through p38-MAPK pathway / 吉林大学学报(医学版)

Objective To explore the influence of icotinib in the apoptosis of the human salivary adenoid cystic carcinoma cells ACC-M, and to clarify the mechanism of icotinib for the treatment of salivary adenoid cystic carcinoma.Methods The ACC-M cells were randomly divided into control group,2,4,8μmo1·L-1 icotinib groups,p38-MAPK inhibitor SB203580 (20μmol· L-1 )group,SB203580 (20 μmol· L-1 )+4μmo1 · L-1 icotinib group;the cells were collected 4 h after treatment.The viability of ACC-M cells was measured by MTT assay.The apoptosis of ACC-M cells was assessed by caspase-3 activity kit. The expression of p-p38-MAPK protein was determined by Western blotting analysis.Results Compared with control group,the inhibitory rates of growth of the ACC-M cells in icotinib groups were significantly decreased (P<0.05 ), and the activities of caspase-3 were increased (P<0.05),and the expression levels of p-p38-MAPK were significantly increased (P<0.05).Compared with 4μmo1·L-1 icotinib group,the expression level of p-p38-MAPK in SB203580+icotinib group were decreased (P < 0.05 ), and the activity of caspase-3 was decreased dramatically (P < 0.05 ). Conclusion Icotinib may induce the apoptosis of ACC-M cells through the activation of p38-MAPK signaling pathway.

Clinicopathological analysis of 273 cases of primary intestinal non-Hodgkin's lymphoma / 中华血液学杂志

<p><b>OBJECTIVE</b>To study the clinicopathological characteristics and prognostic factors in Chinese patients with primary intestinal non-Hodgkin's lymphomas (PINHL).</p><p><b>METHODS</b>The clinical symptoms, pathological features, diagnostic and prognostic factors of 273 cases diagnosed with PINHL from our center were analyzed.</p><p><b>RESULTS</b>Among 273 cases, 189 were male and 84 female, the male to female ratio was 2.3:1. The age of patients ranged from 2 to 85 years old with the median age of 46. The most frequent site of the lesions was ileocecus (n=83, 30.4%). The clinical symptoms of PINHL were unspecific with abdominal mass frequently seen in B-cell lymphoma, and perforation, hypogastric pain and "B" symptoms more common in T-cell lymphoma. Endoscopic biopsy diagnosis rate was 90.3%. Of 273 cases, B-cell lymphoma (n=232, 85.0%) dominated PINHL with the most common subtype of diffuse large B-cell lymphoma-not otherwise specified (DLBCL-NOS) (n=132, 48.4%), while the T-cell lymphoma (n=41, 15.0%) were much less seen with the most common subtype of enteropathy-associated T-cell lymphoma (EATL) (n=15, 36.6%). There were 245 cases were followed up, including 206 cases of B-cell lymphoma and 39 cases of T-cell lymphoma, it was found that the prognosis of B-cell lymphoma is much better than that of T-cell lymphoma (P<0.05). Operation had no significant effect for the overall survival rate. But for patients with aggressive lymphoma, operation can improve the survival rate.</p><p><b>CONCLUSION</b>It indicates that PINHL often occurs as B cell type, DLBCL-NOS is the most common histological type. Ileocecus is the most common site involved and enteroscope biopsy is a good method of diagnosis. Compared with T-cell lymphoma, B-cell lymphoma has different clinical manifestations and a better prognosis. Patients with aggressive lymphoma can benefit from operation.</p>

Antioxidant and anti-fatigue activities of flavonoids from Puerariae radix.

This study evaluated the antioxidant and anti-fatigue activities of flavonoids from Puerariae radix (FPR). In vitro antioxidant activities of FPR were investigated through hydroxyl and superoxide radical scavenging activities. In vivo anti-fatigue activity of FPR was investigated through loaded swimming exercise of mice. Results showed that FPR had not only in vitro antioxidant activities, but also an in vivo anti-fatigue activity in mice. FPR possessed superoxide and hydroxyl radical scavenging activity in in vitro experimental studies. In vivo experimental studies, FPR could evidently extend exhaustive swimming time of mice, inhibit the increase of blood lactic acid (BLA), decrease serum urea nitrogen (BUN) and malondialdehyde (MDA) contents, promote increases in the activities of superoxide dismutase (SOD) and glutathione peroxidase (GPX) of mice after swimming. The results provided an important basis for developing the FPR as a novel antioxidant and anti-fatigue compound.

Clinicopathologic study of 105 lymphoblastic lymphoma cases / 白血病·淋巴瘤

Objective To study the clinicopathologic features and prognosis factor of Chinese lymphoblastic lymphoma.Methods 105 LBL cases were collected.Routine HE staining,immunostaining were used to investigate the clinicopathologic features,immunotype.Results The ratio of male to female was 1.76:1 (67:38),the medial age was 13 years old (0-73 years old).53 cases (53/105,50.48 ％) primarily showed lymph node involvement,including 34 cases (34/53,64.15 ％) showed jugular node involvement;mediastinum (12/52,23.08 ％) was the most frequent extranodal involvement site.69 cases (69/105,65.71％)showed bone marrow involvement with 15 cases as the primary involvement.The expression of TdT,CD99,CD3(E),CD20,CD79a,PAX5,MPO,CD34 and CD117 was 84.76 ％ (89/105),85.00 ％ (68/80),54.37 ％ (56/103),16.67 ％ (16/96),40.00 ％ (8/20),46.67 ％ (28/60),14.29 ％ (8/56),25.00 ％ (4/16) and 0.All cases were divided in to two groups,62 cases as T-LBL (59.05 ％,62/105) and 33 cases as B-LBL (31.43 ％,33/105),with 9 cases (8.57 ％,9/105) without the expression of T or B cell marker and 1 cases with the expression of both T and B cell marker.61 cases were detected the expression of myeloid markers and 8 cases were positive.All cases were followed up.The medial survival was 36 months.The survival at 1 year,2 year and 3 year was 66.67 ％ (70/105),48.81％ (41/84) and 20.69 ％ (12/58) respectively.Age was the prognosis associated factor.The children had better progonosis than adults.Immunotype,bone marrow involovement and transplantation didn' t show prognosis indicator (P ＞ 0.05).Conclusion Most of Chinese LBL occurs in child and younger male,multi-lymphadehypertrophy and bone marrow involvement are common.LBL is an aggressive tumor.Age is the prognosis associated factor.Children have a better prognosis than the adult.