Objective To identify the chemoresistant factors predicting the response to preoperative chemotherapy and clinicopathological prognosis in bulky cervical cancer. Methods 68 patients with bulky cervical carcinoma treated with two courses of intraarterial infusion of cisplatin 80mg, 5 fluorouracil(5Fu) 1500mg and AT 1258 or EADR 60mg, followed by radical hysterectomy and pelvic lymphnodenectomy at our hospital between 1996-1999 were retrospectively reviewed. Expressions of the chemoresistance related proteins, such as P glycoprotein glutathione S transferase ?(GST ?), and proliferating cell nuclear antigen(PCNA) in the tumor cells were examined by immunohistochemistry in previous biopsy specimens. These results were compared with the chemotherapeutic response obtained by gynecological examination and vagina ultrasonic. 68 patients were followed up. SPSS 8.0 was used. Results P glycoprotein expression rate was 31% and GST ? expressioin rate was 51%. There were 38 patients whose PCNA labellings were more than 50% and 30 less than 50%. The total chemotherapeutic response rate was 84%. Chemotherapeutic response rate was significantly correlated with P glycoprotein expression( P =0.013) and PCNA labelling ( P =0.001), but not GST ? expression in the tumor cells. Parautrial involvement and lymph node metastasis were independent factors for prognosis in this group. The survival rate in MDR(+) group was lower than MDR(-) group. No significant correlation between eigher the expression of GST ? or PCNA. Conclusions The expression of P glycoprotein and PCNA is potentially useful for predicting the response to preoperative chemotherapy for cervical cancer. The parautrial involvement and lymph node metastasis were independent prognostic factors for the survival rate including. the expression of P glycoprotein.

Mucosa-associated lymphoid tissue lymphomas are a distinct subgroup of non-Hodgin's lymphoma with a particular clinicopathologic behavior.It is the most common type of extranodal low-grade B cell lymphoma.This type of lymphoma tends to appear in patients with a history of autoimmune disease or chronic inflammatory disorders.These indolent lesions usually remain localized for long periods and often respond to local therapy.The most common site of MALT lymphoma is the stomach.This article reviews clinical features and management of MALT lymphoma,emphasizing on gastric MALT lymphoma.

WTBZ]Breast cancer resistance protein (BCRP) is a recently discovered half-transporter belonging to the ABC transporter superfamily as P-glycoprotein(P-gp) and multiple resistance protein (MRP). The latest research results concerned BCRP on construction features of gene, relationship to differentiation of hemopoietic stem cell and correlated transport substrates were reviewed in the article and it's clinical significance was mentioned at the same time.

The levels of platelet-activating factor (PAF) in cerebrospmal fluid (CSF) of patients with acute cerebral infarction were measured by the method of PAF-induced platelet aggregation quantitative analysis. The results indicated that the levels of PAF in CSF of patients with acute cerebral infarction were significantly increased (P

Purpose:To evaluate the relationship between the expressions of MDR and GST-? and the response to neoadjuvant chemotherapy and prognosis in cervical carcinoma. Methods:The expressions of MDR and GST-? were examined by Envision immunohistochemistry using pretreatment biopsy specimens. The stage distribution of 57 patients in the study was 7 stage Ib, 35 stage IIa, 15 stage IIb. Treatment consisted of 2 courses of neoadjuvant chemotherapy followed by radical hysterectomy and lymphonectomy. If the patient was found to have parametrial involvement, pelvic lymph node metastasis, microscopic tumor emboli or disease in vagina stemp, she was given adjuvant radiotherapy after operation. All patients were followed up and the median follow-up time was 35 months (21-66 months). Statistical method used was SPSS 8.0 package. Results:There were 14 patients with cervical carcinoma who had expression of MDR. The rate of expression of MDR was 24.6% (14/57). Also there were 29 patients who had expression of GST-?. The rate of expression was 50.8% (29/57). The total response rate of neoadjuvant chemotherapy was 81%. The complete clinical response rate was 19% (11/57) and partial response rate was 61% (35/57). All patients were treated by operation following chemotherapy and 13 patients were given adjuvant radiotherapy after operation. The 5-year survival rate in stage Ib was 100%, stage IIa 90% and stage IIb 78.5%. The results showed the expression of MDR was related to response of neoadjuvant chemotherapy and 5-year survival. It is 93%(40/43) in group of MDR(-) and 43%(6/14) in group of MDR(+)( P =0.001). But it was not related to FIGO, histopathologic, parametrial involvement, and pelvic lymph nodes metastasis. The expression with GST-? only related to response of chemotherapy. The response rate in the group with expression of GST-? is 69% and it is 93% in the group with GST-?(-)( P =0.02).Conclusions:The response rate of neoadjuvant chemotherapy in group of MDR(-) and GST-?(-) was better than in the group with expression of MDR and GST-?. The measure of MDR and GST-? is helpful to predict the response of neoadjuvant chemotherapy in cervical cancer and MDR may related to prognosis of cervical cancer.

ObjectiveTo investigate the effect of Smad7 antisense oligodeoxynucleotide (ASODN) on proliferation in human pancreatic cancer cell line SW1990,with a focus on the expression of matrix metalloproteinase-2(MMP-2) and tissue inhibitor of metalloproteinase-2 (TIMP-2).To explore the underlying mechanism of the role of Smad7 in the pathogenesis and development of pancreatic cancer.MethodsSmad7 ASODN was transfected into SW1990 cells through lipofectamine.Nosense oligodeoxynucleotide (NSODN),ASODN and lipofectamine was used as control. The transfection efficiency was assessed by fluorescence microscopy and flow cytometry.The expressions of Smad7,MMP-2 and TIMP-2 in transfected cells were detectedby RT-PCR and Western blot.Cell viability was assessed by dimethyl thiazoldiphenyltetrazoliumbromide (MTT) method. Results Smad7 was expressed in SW1990 cells.The transfection efficiency of SW1990 was 81.2％.The expressions of Smad7 mRNA were 0.34 ± 0.06,0.95 ±0.07,1.03 ± 0.11 in transfected group,ASODN and lipofectamine group; and the expressions of MMP-2 mRNAwere 0.54 ± 0.08,1.15 ± 0.13,1.27 ± 0.16 ; and the expressions of TIMP - 2 mRNA were 0.26 ±0.07,0.72 ± 0.13,0.78 ± 0.17,the mRNA expressions were significantly reduced in Smad7 ASODN transfected group,compared with other two groups (P ＜0.01 ).The expressions of Smad7 protein were 0.14 ± 0.03,0.29 ± 0.05,0.28 ± 0.07 in transfected group,ASODN and lipofectamine group; the expressions of MMP-2 protein were 0.17 ±0.02,0.29 ±0.05,0.31 ±0.04,and the expressions of TIMP-2 protein were 0.20 ± 0.03,0.41 ± 0.11,0.43 ± 0.09,the protein expressions were significantly reduced in Smad7 ASODN transfected group,compared with other two groups (P ＜0.01 ).The A490 values of proliferation were 0.83 ± 0.03,1.02 ±0.02,0.99 ±0.02 in transfected group,ASODN and lipofectamine group,the proliferation were significantly reduced in Smad7 ASODN transfected group,compared with other two groups (P ＜0.01 ).ConclusionsSmad7 ASODN could effectively inhibit the expressions of Smad7,therefore decrease the expressions of MMP-2,TIMP-2 and reduce the proliferation.

Objective To evaluate the clinical significance of positive peritoneal cytology in patients with endometrial cancer.Methods The records of 315 patients with endometrial cancer who were operated at Cancer Hospital, Fudan University between January 1996 and December 2008 were reviewed.Peritoneal cytology were performed and diagnosed in all patients.Factors related with peritoneal cytology were analyzed by correlation analysis.Log-rank test and Cox regression test was used for the analysis of prognosis,respectively.Results (1) Peritoneal cytology were positive in 30 (9.5%) patients.Positive peritoneal cytology was associated with pathological subtype ( P = 0.013 ), stage ( P = 0.000 ), myometrial invasion ( P =0.012), lymph-vascular space invasion ( P = 0.012 ), serosal involvement ( P = 0.004 ), cervical involvement ( P = 0.016), adnexal involvement ( P = 0.000), and omental involvement ( P = 0.000), with no association with grade ( P = 0.152 ) and lymph node metastasis ( P = 0.066 ).( 2 ) Three-year overall survival (OS) and progression-free survival(PFS) were 93.0% and 85.5% ,respectively.Positive peritoneal cytology, surgical stage, pathological subtype, myometrial invasion, grade, and lymph-vascular space invasion were significantly associated with worse prognosis by univariate analysis ( P ＜ 0.05 ), while only surgical-pathology stage and myometrial invasion were independent prognostic factors by multivariate analysis ( P ＜ 0.05 ).For 30 cases with positive peritoneal cytology, the patients with no high risk factors shown significantly prognoses better than those with any risk factors.The results shown that for patients with late stage (stage Ⅲ - Ⅳ ) endometrial cancer with positive peritoneal cytology was significantly associated with the worse OS and PFS by multivariate analysis ( P = 0.006).Conclusions Positive peritoneal cytology was associated with serosal involvement, cervical involvement, adnexal involvement, omental involvement, and late stage.Therefore, peritoneal cytology should be performed and reported separately as a part of full surgical staging procedure.

Background and purpose:Bone marrow cytomorphology is the main approach for determination of bone marrow involvement in patients with malignant lymphomas. In recent years, with the development of detection of cellular surface markers and molecular biology, flow cytometry (FCM) and polymerase chain reaction (PCR) were gradually applied in the detection of bone marrow in malignant lymphomas. Because such systematic research has not been done domestically , we performed a study to compare diagnostic value and clinipathological signifi cance of cytomorphology of bone marrow aspirates, immunophenotype detected by flow cytometry and immunoglobulin heavy chain gene rearrangement detected by polymerase chain reaction in bone marrow of B cell lymphomas. Methods: Bone marrow cytomorphology, FCM and PCR were simultaneously carried out in 75 bone marrows of B cell lymphoma and compared with each other. Results:(1)16 were demonstrated by cytomorphology, 36 by FCM, 33 by PCR. The positive rates were 21.3%, 48% and 44% respectively. The differences among these three methods have statistical signifi cance (P

0.05).(4) The subtypes of 4 cases of B-cell lymphoma diagnosed by cytology originally were determined by analyzing immunophenotype of their bone marrow involvement.Conclusions:Flow cytometry is an effective method for detecting bone marrow involvement in B-cell lymphoma and is superior to cytomorphology;Bone marrow involvement detected by FCM can be useful for helping diagnosis.The relevance of bone marrow involvement in different types of untreated B-cell lymphoma patients with clinical presentations and response to treatment should be further studied in more patients.

In our previous studies, DAZAP2 gene expression was down-regulated in untreated patients of multiple myeloma (MM). For better studying the structure and function of DAZAP2, a full-length cDNA was isolated from mononuclear cells of a normal human bone marrow, sequenced and deposited to Genbank (AY430097). This sequence has an identical ORF (open reading frame) as the NM_014764 from human testis and the D31767 from human cell line KG-1. Phylogenetic analysis and structure prediction reveal that DAZAP2 homologues are highly conserved throughout evolution and share a polyproline region and several potential SH2/SH3 binding sites. DAZAP2 occurs as a single-copy gene with a four-exon organization. We further noticed that the functional DAZAP2 gene is located on Chromosome 12 and its pseudogene gene is on Chromosome 2 with electronic location of human chromosome in Genbank, though no genetic abnormalities of MM have been reported on Chromosome 12. The ORF of human DAZAP2 encodes a 17-kDa protein, which is highly similar to mouse Prtb. The DAZAP2 protein is mainly localized in cytoplasm with a discrete pattern of punctuated distribution. DAZAP2 may associate with carcinogenesis of MM and participate in yet-to-be identified signaling pathways to regulate proliferation and differentiation of plasma cells.
Amino Acid Sequence ; Base Sequence ; Chromosomes, Human, Pair 12 ; genetics ; Chromosomes, Human, Pair 2 ; genetics ; Cytoplasm ; metabolism ; DNA Primers ; DNA, Complementary ; genetics ; Down-Regulation ; Gene Components ; Humans ; Likelihood Functions ; Models, Genetic ; Molecular Sequence Data ; Multiple Myeloma ; genetics ; metabolism ; Phylogeny ; Pseudogenes ; genetics ; RNA-Binding Proteins ; genetics ; metabolism ; Sequence Alignment ; Sequence Analysis, DNA