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| 1 | Noninvasive estimation of liver fibrosis and response to interferon therapy by a serum fibrogenesis marker, YKL-40, in patients with HCV-associated liver disease显示文摘AIM: To evaluate the clinical utility of serum fibrosis markers,including YKL-40, in patients with HCV-associated liver disease.METHODS: A total of 109 patients with HCV-associated liver disease were enrolled. We measured serum type Ⅳ collagen, amino-terminal peptide of type Ⅲ procollagen (PⅢP),hyaluronic acid (HA), YKL-40 levels and biochemical.Parameters by RIA or ELISA. Eighty-eight patients underwent liver biopsy, and 67 of 109 patients received interferon (IFN)therapy. We also investigated the relationship between the concentrations of serum fibrosis markers and histological fibrosis scores (METAVIR), and evaluated the changes of the levels of fibrosis markers before and after the IFN therapy.RESULTS: The increase in serum levels of all markers,particularly HA, was correlated with the progression of liver fibrosis (for type Ⅳ collagen, F= 9.076, P<0.0001; for PⅢP,F= 9.636, P<0.0001; for HA, F= 13.128, P<0.0001; and for YKL-40, F= 8.016, P<0.0001). YKL-40 had strong correlation with HA (r= 0.536, P<0.0001). Based on the receiver operating curve (ROC), the ability of serum HA exceeded the abilities of other serum markers to determine fibrosis score 4 from fibrosis score 0-3 (AUC = 0.854). While YKL-40 was superior to other fibrosis markers for predicting severe fibrosis (F2-F4) from mild fibrosis (F0-F1) (YKL-40, AUC = 0.809;HA, AUC = 0.805). After IFN therapy, only YKL-40 values significantly decreased not only in the responder group,but also in the nonresponder group (P = 0.03).CONCLUSION: YKL-40 may be a useful non-invasive serum marker to estimate the degree of liver fibrosis and to evaluate the efficacy of IFN therapies in patients with HCV-associated liver disease. | Yukiko Saitou Katsuya Shiraki Yutaka Yamanaka Yumi Yamaguchi Tomoyuki Kawakita Norihiko Yamamoto Kazushi Sugimoto Kazumoto Murata Takeshi Nakano | 2005 | World Journal of Gastroenterology2005，11，4： | 21 |
| 2 | Functional expression of a proliferation-related ligand in hepatocellular carcinoma and its implications for neovascularization显示文摘AIM: To detect the expression of a proliferation-related ligand on human hepatocellular carcinoma (HCC) cell lines (SK-Hep1, HLE and HepG2) and in culture medium.METHODS: APRIL expression was analyzed by Western blotting in HCC cell lines. Effects of APRIL to cell count and angiogenesis were analyzed, too.RESULTS: Recombinant human APRIL (rhAPRIL) increased cell viability of HepG2 cells and, in HUVEC, rhAPRIL provided slight tolerance to cell death from serum starvation. Soluble APRIL (sAPRIL) from HLE cells increased after serum starvation, but did not change in SK-Hep1 or HepG2 cells. These cells showed down-regulation of VEGF after incubation with anti-APRIL antibody.Furthermore, culture medium from the HCC cells treated with anti-APRIL antibody treatment inhibited tube formation of HUVECs.CONCLUSION: Functional expression of APRIL might contribute to neovascularization via an upregulation of VEGF in HCC. | Hiroshi Okano Katsuya Shiraki Yutaka Yamanaka Hidekazu Inoue Tomoyuki Kawakita Yukiko Saitou Yumi Yamaguchi Naoyuki Enokimura Keiichi Ito Norihiko Yamamoto Kazushi Sugimoto Kazumoto Murata Takeshi Nakano | 2005 | World Journal of Gastroenterology2005，11，30： | 13 |
| 3 | A novel negative regulatory mechanism of Smurf2 in BMP/Smad signaling in bone显示文摘Transforming growth factor-β(TGF-β)and bone morphogenetic protein(BMP)play important roles in bone metabolism.Smad ubiquitination regulatory factors(Smurfs)regulate TGF-β/BMP signaling via ubiquitination,resulting in degradation of signaling molecules to prevent excessive activation of TGF-β/BMP signaling.Though Smurf2 has been shown to negatively regulate TGF-β/Smad signaling,its involvement in BMP/Smad signaling in bone metabolism has not been thoroughly investigated.In the present study,we sought to evaluate the role of Smurf2 in BMP/Smad signaling in bone metabolism.Absorbable collagen sponges containing 3μg of recombinant human BMP2(rhBMP2)were implanted in the dorsal muscle pouches of wild type(WT)and Smurf2−/−mice.The rhBMP2-induced ectopic bone in Smurf2−/−mice showed greater bone mass,higher mineral apposition and bone formation rates,and greater osteoblast numbers than the ectopic bone in WT mice.In WT mice,the ectopic bone consisted of a thin discontinuous outer cortical shell and scant inner trabecular bone.In contrast,in Smurf2−/−mice,the induced bone consisted of a thick,continuous outer cortical shell and abundant inner trabecular bone.Additionally,rhBMP2-stimulated bone marrow stromal cells(BMSCs)from Smurf2−/−mice showed increased osteogenic differentiation.Smurf2 induced the ubiquitination of Smad1/5.BMP/Smad signaling was enhanced in Smurf2−/−BMSCs stimulated with rhBMP2,and the inhibition of BMP/Smad signaling suppressed osteogenic differentiation of these BMSCs.These findings demonstrate that Smurf2 negatively regulates BMP/Smad signaling,thereby identifying a new regulatory mechanism in bone metabolism. | Junichi Kushioka Takashi Kaito Rintaro Okada Hiroyuki Ishiguro Zeynep Bal Joe Kodama Ryota Chijimatsu Melanie Pye Masahiro Narimatsu Jeffrey LWrana Yasumichi Inoue Hiroko Ninomiya Shin Yamamoto Takashi Saitou Hideki Yoshikawa Takeshi Imamura | 2020 | Bone Research2020，8，4： | 6 |
| 4 | Evaluation of endoscopic biliary stenting for obstructive jaundice caused by hepatocellular carcinoma显示文摘AIM:To review the usefulness of endoscopic biliary stenting for obstructive jaundice caused by hepatocellular carcinoma and identify problems that may need to be addressed.METHODS:The study population consisted of 36 patients with obstructive jaundice caused by hepatocellular carcinoma(HCC)who underwent endoscopic biliary stenting(EBS)as the initial drainage procedure at our hospital.The EBS technical success rate and drainage success rate were assessed.Drainage was considered effective when the serum total bilirubin level decreased by 50%or more following the procedure compared to the pre-drainage value.Survival time after the procedure and patient background characteristics were assessed comparatively between the successful drainage group(group A)and the non-successful drainage group(group B).The EBS stent patency duration in the successful drainage group(group A)was also assessed.RESULTS:The technical success rate was 100%for both the initial endoscopic nasobiliary drainage and EBS in all patients.Single stenting was placed in 21 patients and multiple stenting in the remaining 15 patients.The drainage successful rate was 75%and the median interval to successful drainage was 40 d(2-295 d).The median survival time was 150 d in group A and 22 d in group B,with the difference between the two groups being statistically significant(P<0.0001).There were no statistically significant differences between the two groups with respect to patient background characteristics,background liver condition,or tumor factors;on the other hand,the two groups showed statistically significant differences in patients without a history of hepatectomy(P=0.009)and those that received multiple stenting(P=0.036).The median duration of stent patency was 43 d in group A(2-757 d).No early complications related to the EBS technique were encountered.Late complications occurred in 13 patients(36.1%),including stent occlusion in 7,infection in 3,and distal migration in 3.CONCLUSION:EBS is recommended as the initial drainage procedure for obstructive jaundice caused by HCC,as it appears to contribute to prolongation of survival time. | Gen Sugiyama Yoshinobu Okabe Yusuke Ishida Fumihiko Saitou Ryuichi Kawahara Hiroto Ishikawa Hiroyuki Horiuchi Hisafumi Kinoshita Osamu Tsuruta Michio Sata | 2014 | World Journal of Gastroenterology2014，20，22： | 4 |
| 5 | Risk factors for the recurrence of hepatocellular carcinoma after radiofrequency ablation of hepatocellular carcinoma in patients with hepatitis C显示文摘AIM: To analyze the risk factors of hepatocellular carcinoma (HCC) recurrence after radiofrequency ablation (RFA) treatment with HCV-associated hepatitis. METHODS: Twenty-six patients with HCV-associated HCC who were followed-up for more than 12 mo were selected for this study. Risk factors for distant intrahepatic recurrences of HCC were evaluated for patients in whom complete coagulation was achieved without recurrence in the same subsegment as the primary nodule. Twelve clinical and tumoral factors were examined: Age, gender, nodule diameter, number of primary HCC nodule, Child-Pugh classification, serum platelet, serum albumin, serum AST, post RFA AST, serum ALT, post RFA ALT, post RFA treatment.RESULTS: Distant recurrences of HCC in remnant liver after RFA were observed in 14 cases and in the number of primary HCC nodules (P = 0.047), and the serum platelets (P = 0.030), the clear difference came out by the recurrence group and the non-recurrence group. The cumulative recurrence rates after 1 and 2 years were30.8% and 86.8%, respectively for primary multinodular HCC, and 15.4% and 29.5% respectively, for primary uninodular HCC. In addition the 1-year recurrence rates for patients with serum albumin more than 3.4 g/dL and less than 3.4 g/dL were 23.1% for both, but the 2-years recurrence rates were 89.0% and 23.1%, respectively. The number of primary HCC nodules (relative risk, 6.970; P = 0.016) were found to be a statistically significant predictor for poor distant intrahepatic recurrence by univariate analysis.CONCLUSION: Patients who have multiple HCC nodules, low serum platelets and low serum albumin accompanied by HCV infection, should be carefully followed because of the high incidence of new HCC lesions in the remnant liver, even if coagulation RFA is complete. | Yutaka Yamanaka Katsuya Shiraki Kazumi Miyashita Tomoko Inoue Tomoyuki Kawakita Yumi Yamaguchi Yukiko Saitou Norihiko Yamamoto Takeshi Nakano Atsuhiro Nakatsuka Koichiro Yamakado Kan Takeda | 2005 | World Journal of Gastroenterology2005，11，14： | 4 |
| 6 | Augmentation of tumor necrosis factor family-induced apoptosis by E3330 in human hepatocellular carcinoma cell lines via inhibition of NFκB显示文摘AIM: To investigate the reduction of cell viability in human hepatocellular carcinoma (HCC) cell lines induced by inhibition of nuclear factor κB (NFκB). METHODS: HLE, SKHep1, and HepG2 were incubated and E3330 was used to compare the stimulation of some chemotherapeutic drugs with that of TNF family, Fas ligand, TNFα and TNF-related apoptosis-inducing ligand (TRAIL) at the point of the reduction of cell viability by inhibiting NFκB. RESULTS: E3330 decreased NFκB levels in HLE cells stimulated by TNF and TRAIL. The cytotoxicity of the combination of TRAIL, TNFα, Fas ligand, and E3330 increased synergistically in a dose-dependent manner compared to either E3330 alone in all HCC cell lines by MTT assay. However, the combination of some chemotherapeutic drugs and E3330 did not decrease the cell viability. CONCLUSION: Inhibition of NFκB sensitizes human HCC cell lines to TNF-mediated apoptosis including TRAIL, and TRAIL-based tumor therapy might be a powerful potential therapeutic tool in the treatment of human HCC. | Yukiko Saitou Katsuya Shiraki Takenari Yamanaka Kazumi Miyashita Tomoko Inoue Yutaka Yamanaka Yumi Yamaguchi Naoyuki Enokimura Norihiko Yamamoto Keiichi Itou Kazushi Sugimoto Takeshi Nakano | 2005 | World Journal of Gastroenterology2005，11，40： | 3 |
| 7 | Long-term continuous entecavir therapy in nucleos(t)ide-na?ve chronic hepatitis B patients显示文摘 | Atsushi Ono Fumitaka Suzuki Yusuke Kawamura Hitomi Sezaki Tetsuya Hosaka Norio Akuta Masahiro Kobayashi Yoshiyuki Suzuki Satoshi Saitou Yasuji Arase Kenji Ikeda Mariko Kobayashi Sachiyo Watahiki Rie Mineta Hiromitsu Kumada | 2012 | Journal of Hepatology2012，，3： | 3 |
| 8 | The neighbor - joining method: a new method for reconstructing phylogenetic trees显示文摘 | Saitou N Nei M | 1987 | Molecular Biology and Evolution1987，4，： | 1 |
| 9 | The neighbor-joining method: a new method for reconstructing phylogenetic trees 显示文摘 | Saitou N Nei M | 1987 | Mol Biol Evol1987，4，： | 1 |
| 10 | The neighbor-joining method:a new method for reconstructing phylogenetic trees显示文摘 | Saitou N Nei M | 1987 | Mol Biol Evol1987，4，4： | 1 |
| 11 | Mitochondria in platinum resistant cells显示文摘 | Isonishi S Saitou M Yasuda M | 2001 | Hum Cell2001，14，3： | 1 |
| 12 | The neighbor-joining method:a new method for reconstructing phylogenetic trees显示文摘 | Saitou N and Nei M | 1987 | Mol Biol Evol1987，4，4： | 1 |
| 13 | The neighbour-joining method: a new method for reconstructing phylogenetic trees 显示文摘 | SAITOU N NEI M | 1987 | Mol Biol Evol1987，4，： | 1 |
| 14 | Genome-wide expression changes in Saccharomyces cerevisiae in response to high-LET ionizing radiation显示文摘 | Mizukami-Murata S Iwahashi H Kimura S Nojima K Sakurai Y Saitou T | 2010 | Appl Biochem Biotechnol2010，162，3： | 1 |
| 15 | The neighbor-joining method:A new method for reconstructing phylogenetic trees显示文摘 | SAITOU N NEI M | 1987 | Molecular Biology and Evolution1987，4，： | 1 |
| 16 | The neighbor-ioining method: a new method for reconstructing phylogenetic trees显示文摘 | Saitou N Nei M | 1987 | Mol Biol Evol1987，4，： | 1 |
| 17 | The neighbor-joining method: A new method for reconstructing phylogenetic trees 显示文摘 | SAITOU N NEI M | 1987 | Molecular Biology and Evolution1987，4，： | 1 |
| 18 | Nosocomial outbreak of infections by Proteus mirabilis that produces extended-spectrum CTX-M-2 type beta-lactamase显示文摘 | Nagano N N Shibata Y Saitou Y | 2003 | J Clin Microbiol2003，41，12： | 1 |
| 19 | The neighbor-joining method: a new method for reconstructing phylogenetic trees 显示文摘 | SAITOU N NEI M | 1987 | Mol Biol Evo11987，4，： | 1 |
| 20 | The neighbor-joining method:a new method for reconstructing phylogenetic trees显示文摘 | Saitou N Nei M | 1987 | Molecular Biology and Evolution1987，4，4： | 1 |
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