OBJECTIVETo investigate the factors of long-turn survival of liver cancer after surgical treatment.

METHODSFive hundred and twenty-two cases of liver cancer that received surgical treatment in 14 years were analyzed retrospectively.

RESULTSComparison between the small liver cancer (< 5 cm) and the greater one (> 10 cm) revealed that the small liver cancer had a higher survival rates than the greater one [3 year (61.25 +/- 4.41)% versus (45.90 +/- 6.98)%; 5 year (53.84 +/- 5.68)% versus (30.21 +/- 10.23)%]. There were same results between single-nodule and two or more than two nodule [3 year (61.86 +/- 3.69)% versus (38.31 +/- 4.97)%; 5 year (55.40 +/- 4.91)% versus (28.01 +/- 6.31)%], between child I and child II or more than II [3 year (60.68 +/- 3.68)% versus (49.88 +/- 4.13)%; 5 year (50.99 +/- 5.10)% versus (36.39 +/- 7.58)%], and between single segmentectomy of the liver and two or more than two segmentectomy [3 year (68.65 +/- 4.95)% versus (49.88 +/- 4.13)%; 5 year (65.38 +/- 5.69)% versus (37.98 +/- 5.70)%].

CONCLUSIONSSmall liver cancer, single-nodule, good hepatic function and minor resection were important factors to prolong survival further.

Adolescent ; Adult ; Aged ; Child ; Female ; Follow-Up Studies ; Hepatectomy ; methods ; Humans ; Liver Neoplasms ; mortality ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Survival Rate

Previous studies proposed that the synergistic effect of fibroblast growth factor-21 (FGF-21) and insulin may be due to the improvement of insulin sensitivity by FGF-21. However, there is no experimental evidence to support this. This study was designed to elucidate the mechanism of synergistic effect of FGF-21 and insulin in the regulation of glucose metabolism. The synergistic effect of FGF-21 and insulin on regulating glucose metabolism was demonstrated by investigating the glucose absorption rate by insulin resistance HepG2 cell model and the blood glucose chances in type 2 diabetic db/db mice after treatments with different concentrations of FGF-21 or/and insulin; The synergistic metabolism was revealed through detecting GLUT1 and GLUT4 transcription levels in the liver by real-time PCR method. The experimental results showed that FGF-21 and insulin have a synergistic effect on the regulation of glucose metabolism. The results of real-time PCR showed that the effective dose of FGF-21 could up-regulate the transcription level of GLUT1 in a dose-dependent manner, but had no effect on the transcription level of GLUT4. Insulin (4 u) alone could up-regulate the transcription level of GLUT4, yet had no effect on that of GLUT1. Ineffective dose 0.1 mg kg(-1) FGF-21 alone could not change the transcription level of GLUT1 or GLUT4. However, when the ineffective dose 0.1 mg x kg(-1) FGF-21 was used in combination with insulin (4 u) significantly increased the transcription levels of both GLUT1 and GLUT4, the transcription level of GLUT1 was similar to that treated with 5 time concentration of FGF-21 alone; the transcription level of GLUT4 is higher than that treated with insulin (4 u) alone. In summary, in the presence of FGF-21, insulin increases the sensitivity of FGF-21 through enhancing GLUT1 transcription. Vice versa, FGF-21 increases the sensitivity of insulin by stimulating GLUT4 transcription in the presence of insulin. FGF-21 and insulin exert a synergistic effect on glucose metabolism through mutual sensitization.
Animals ; Blood Glucose ; Diabetes Mellitus, Experimental ; metabolism ; Drug Synergism ; Fibroblast Growth Factors ; pharmacology ; Glucose ; metabolism ; Glucose Transporter Type 1 ; metabolism ; Glucose Transporter Type 4 ; metabolism ; Hep G2 Cells ; Humans ; Insulin ; pharmacology ; Insulin Resistance ; Liver ; metabolism ; Mice

Objective:To observe clinical efficacy of Taohua Tang and Buzhong Yiqi Tang on Crohn's disease (CD) at active phase (deficiency-cold in spleen and stomach), in order to observed its effect on Th1 and Th17 cytokines. Method:According to random number table, 86 patients with CD were divided into control group (42 cases) and observation group (44 cases). The control group (mild) was given SASP, 3-4 g·d^-1, Po, tid. The control group (moderate or poor efficacy of SASP) was given prednisone acetate, 0.75 mg·kg^-1·d^-1, Po, tid. Observation group was given Taohua Tang and Buzhong Yiqi Tang in addition to therapy of the control group, 1 dose·d^-1. The course of treatment was 12 weeks. Before and after treatment, Best CDAI, SES-CD, IBDQ and deficiency syndrome were scored, and levels of CRP, ESR, ALB, HB, PLT, IFN-γ, TNF-α, IL-2 and IL-17 were measured before and after treatment. Result:After treatment, the effect of traditional Chinese medicine(TCM) syndromes in the observation group was better than that in the control group (Z=2.058, P<0.05). The clinical remission rate, the effective rate and the endoscopic remission rate in the observation group were 93.18%, 100% and 86.36%, which were higher than 76.19%, 83.33% and 66.67% in the control group (P<0.05). Best CDAI, SES-CD and IBDQ scores of the observation group were lower than those of the control group (P<0.01), while IBDQ score was higher than that of the control group (P<0.01). CD activity in the observation group was lower than that in the control group (Z=2.112, P<0.05). The degree of inflammation in the observation group was lighter than that in the control group (Z=2.288, P<0.05). CRP, ESR and PLT levels in the observation group were lower than those in the control group (P<0.01), whereas ALB and HB levels were higher than those in the control group (P<0.01). IFN-γ, TNF-α, IL-2 and IL-17 levels in the observation group were lower than those in the control group (P<0.01). Conclusion:In addition to the therapy of conventional western medicine, Taohua Tang and Buzhong Yiqi Tang in treatment of deficiency syndrome of Crohn's disease (CD) can control the activity degree of the disease, reduce the degree of illness and inflammation, and improve the remission rate and the quality of life, with a better clinical efficacy than the pure western medicine therapy.

OBJECTIVETo evaluate the sequential fecal occult blood test (SFOBT) program for the screening of colorectal cancer and elucidate the prevalence of colorectal cancer in Wuhan area.

METHODSAt 19 screening sites, 63,961 residents were recruited as target population according to random cluster and stratified sampling for four years (between 2005 and 2008). Residents aged over 40 years old received SFOBT. Those with positive SFOBT underwent colonoscopy.

RESULTSThe target population was 63,961. There were 25,837 people whose age was over 40. Finally, 7784 participants received the SFOBT screening, with a medium age of 56 years old. The positive rate of SFOBT was 12.3% (956 persons). Of the 956 persons, 240 participants underwent colonoscopy. Colorectal cancer was found in 14 cases (6.5%), gastric cancer in 2 cases (0.9%), colorectal adenoma in 53 cases(24.8%), colorectal inflammation in 80 cases (37.3%) and hemorrhoids in 65 cases (30.4%).

CONCLUSIONSThe prevalence of colorectal cancer is relatively high in Wuhan area. The SFOBT is available and feasible in screening early changes of colorectal cancer.

Adult ; Aged ; China ; epidemiology ; Colonoscopy ; Colorectal Neoplasms ; diagnosis ; epidemiology ; prevention & control ; Female ; Humans ; Male ; Mass Screening ; methods ; Middle Aged ; Occult Blood ; Population Surveillance ; methods ; Prevalence

To study the possibility of separation and culture of human umbilical cord blood adherent cell (HUCBAC), the umbilical cord blood CD34(+) cells were cultured in Dexter system in order to evaluate and observe the biological behavior of adherent cells in vitro. The results showed that all cells were cultured with Dexter system. By day 9-14 (at a median of 11.2 days), adherent cell colonies formed and reached their maximum at 15-22 days (mean 19.6 days), by day 28, all adherent cells spread over the bottom of Petri dish. By means of light microscopy, these cells were found to differentiate into three kinds of cells in culture of 28 days: fibroblast-liked cell, macrophage liked cell and small-round cells. The ratio of these three kinds of cells was 56.8%, 38%, 5.5% respectively. Cytochemistry assay revealed that the positive rate reached 100% in NSE stain and PAS stain; the adherent cell by ALP stain were shown 35% positive, but in POX stain the result was negative. Immunohistochemistry stain revealed that the positive rate of cord adherent cells for CD106, CD29, CD44, CD45, CD50, Fn, Ln, collagen IV etc reached 96%, 93%, 98%, 68%, 72%, 92%, 74%, 83% respectively. It is concluded there are hematopoietic adherent precursors in cord blood CD34(+) cells and the HUCBAC shows some biological behavior of hematopoietic stromal cells.
Antigens, CD34 ; blood ; Cell Adhesion ; immunology ; Cell Differentiation ; immunology ; Cells, Cultured ; Fetal Blood ; cytology ; Hematopoietic Stem Cells ; cytology ; immunology ; Humans ; Hyaluronan Receptors ; blood ; Immunohistochemistry ; Integrin beta1 ; blood ; Leukocyte Common Antigens ; blood ; Vascular Cell Adhesion Molecule-1 ; blood

To study the importance of chemokine SDF-1 in surviving of acute myelocytic leukemia cells HL-60, the adhesion ability of HL-60 and expression of Bcl-2, Fas protein when SDF-1 activity was blocked by anti-CXCR4 monoclonal antibody (12G5) were compared with those detected before MAb incubation, in this experiment, HL-60 cell were cultured and co-cultured with normal marrow stromal cell. The adhesion rate was detected while the expression of Bcl-2 and Fas proteins were assayed by immunohistochemical technique when SDF-1 activity was inhibited. The results showed that cell adhesion rate of HL-60 decreased while the expression Bcl-2 decreased and Fas increased. It is concluded that inhibition of SDF-1 activity increases cell apoptosis and thus reduces life-span of leukemia cell at certain level.
Antibodies, Monoclonal ; pharmacology ; Apoptosis ; Cell Adhesion ; Chemokine CXCL12 ; Chemokines, CXC ; physiology ; HL-60 Cells ; chemistry ; cytology ; Humans ; Proto-Oncogene Proteins c-bcl-2 ; analysis ; Receptors, CXCR4 ; physiology ; fas Receptor ; analysis

The aim was to analyze the expression level of stromal cell derived factor-1 (SDF-1) and its functional chemokine receptor CXCR4 in the patients with hematologic malignant tumor and their clinic significance. 28 patients with hematologic malignant tumor and 12 normal controls were chosen to be experimental objects. CXCR4 expressed on the cell membrane in bone marrow was enumerated by flow cytometry and serum level of SDF-1 was determined by ELISA assay. The result showed that the expression of SDF-1 and CXCR4 in hematologic malignant tumor were higher than that in normal controls, and the expression levels of two molecules were correlated. What is more, the different hematologic malignant tumor had different CXCR4 expression. In conclusion, the high expression of SDF-1 and CXCR4 in serum and bone marrow cells can be used as detective factors to hematologic malignant tumor. A correlation exists between the high expression of CXCR4 and the infiltration of hematologic malignant cells.
Adolescent ; Adult ; Aged ; Chemokine CXCL12 ; blood ; Child ; Enzyme-Linked Immunosorbent Assay ; Female ; Flow Cytometry ; Hematologic Neoplasms ; blood ; Humans ; Leukemia ; blood ; Lymphoma ; blood ; Male ; Receptors, CXCR4 ; blood

This study was aimed to explore the influence of anti-CXCR4 monoclonal antibody 12G5 on killing effect of cytosine arabinoside (Ara C) to HL-60 cell, and to assess its therapeutic value in marrow residual disease. HL-60 cells were cultured and co-cultured with leukemic stromal cells, and SDF-1 activity was inhibited with 10 microg/ml 12G5, then, killing effects of Ara C on HL-60 cells were investigated by MTT and morphology assay. Curves by MTT assay revealed that in the test group of 20 microg/ml Ara C, A(540) values decreased slowly but straightly, however, in control group A(540) values decreased markedly for the first two days, and increased from day 3 or 4. In the test group of 40 microg/ml Ara C, although increasing at constricted range of 7 - 9 days, A(540) values decreased in whole observing period of 12 days, while in control group A(540) values decreased markedly at day 0-3, and increased from day 4. Furthermore, two curves go across each other at day 5, and continue the increasing tendency. Morphology results showed that in both treated groups, the number of HL-60 cell decreased markedly and increased gradually in control group, but just contrary to test group. It is concluded that 12G5 may weaken the killing effect of Ara C on HL60 cell in earlier period, but reinforce the total killing effect and delay the occurrence of drug resistance simultaneously. Thus 12G5 has the therapeutic potential on marrow residual disease.
Antibodies, Monoclonal ; pharmacology ; Antimetabolites, Antineoplastic ; pharmacology ; Cell Line, Tumor ; Cell Survival ; drug effects ; Cytarabine ; pharmacology ; Dose-Response Relationship, Drug ; Drug Synergism ; HL-60 Cells ; Humans ; Receptors, CXCR4 ; immunology

This study was aimed to investigate the effect of vcam-1 gene-modified human umbilical cord blood derived stromal cells (CBDSCs) on hematopoietic regulation so as to establish the experimental foundation for further study. The target gene vcam-1 was cloned into the shuttle plasmid with the report gene GFP. The recombinant shuttle plasmid was transformed into BJ5183 bacteria to recombine with backbone vector pAdeasy-l, and the recombinant adenoviral vector ad-vcam-1-gfp was confirmed after transfection with CBDSCs. The results indicated that two fragments of about 9 kb and 2 kb were obtained after digestion of recombinant plasmid pAdTrack-vcam-1 with NotIand XhoI, and single fragment of 600 bp was obtained after amplification with PCR; two fragments of about 31 kb and 4 kb were obtained after digestion of recombinant plasmid pad-vcam-1-gfp with PacI, which suggested a successful homologous recombination. The expression of vcam-1 gene in ad-vcam-1-gfp transfected CBDSCs could be detected by immunocytochemistry, RT-PCR and fluorescent microscopy. It is concluded that the recombinant adenoviral vector ad-vcam-1-gfp has been constructed successfully, and the expression of vcam-1 is up-regulated in CBDSCs transfected by gene ad-vcam-1-gfp.
Adenoviridae ; genetics ; metabolism ; Fetal Blood ; cytology ; Genetic Vectors ; genetics ; Green Fluorescent Proteins ; genetics ; metabolism ; Humans ; RNA, Messenger ; genetics ; metabolism ; Recombinant Proteins ; genetics ; metabolism ; Stromal Cells ; cytology ; Transfection ; Vascular Cell Adhesion Molecule-1 ; genetics ; metabolism

OBJECTIVETo observe the effects of inhibiting stromal cell derived factor-1 (SDF-1) expression by RNA interference (RNAi) on adhesion and drug sensitivity of Jurkat cells co-cultured with bone marrow stromal cells.

METHODSSDF-1 specific short hairpin RNA (shRNA) expressing plasmid was transferred into cultured human acute leukemic bone marrow stromal cells, positive clones were isolated by screening G418 resistance (Group A) , SDF-1 protein level in culture supernatant was detected by enzyme-linked immunosorbent assay (ELISA). The adhesion rates to bone marrow stromal cells layer and the drug sensitivity to doxorubicin of co-cultured Jurkat cells were detected by cell counting and MTT assay, respectively. The un-transfected bone marrow stromal cells of acute leukemia patient (Group B) or normal subject (Group C) were taken as control.

RESULTSThe level of secreted SDF-1 protein (pg/10(5) cells/week) in the supernatants of Group A, B and C were 1920 +/- 205, 12,370 +/- 1355 and 6620 +/- 770, respectively. Of co-cultured Jurkat cells in Group A, B and C, the adhesion rates after 24 h co-culturing were (28.8 +/- 2.6)%, (57.4 +/- 3.8)% and (45.2 +/- 4.0)%, respectively, and the IC50 values of doxorubicin were 585, 6162 and 1758 nmol/L, respectively.

CONCLUSIONDown-regulating SDF-1 expression of bone marrow stromal cells by RNAi reduces adhesion rates and enhances drug sensitivity to doxorubicin of their co-cultured Jurkat cells.

Bone Marrow Cells ; metabolism ; Cell Adhesion ; Cells, Cultured ; Chemokine CXCL12 ; genetics ; metabolism ; Coculture Techniques ; Drug Resistance, Neoplasm ; Gene Expression ; Humans ; Jurkat Cells ; RNA Interference ; Stromal Cells ; metabolism