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1Biomarkers of gastric cancer:Current topics and future perspective显示文摘Gastric cancer(GC) is one of the most prevalent malignant types in the world and an aggressive disease with a poor 5-year survival. This cancer is biologically and genetically heterogeneous with a poorly understood carcinogenesis at the molecular level. Although the incidence is declining, the outcome of patients with GC remains dismal. Thus, the detection at an early stage utilizing useful screening approaches, selection of an appropriate treatment plan, and effective monitoring is pivotal to reduce GC mortalities. Identification of biomarkers in a basis of clinical information and comprehensive genome analysis could improve diagnosis, prognosis, prediction of recurrence and treatment response. This review summarized the current status and approaches in GC biomarker, which could be potentially used for early diagnosis, accurate prediction of therapeutic approaches and discussed the future perspective based on the molecular classification and profiling.Tasuku Matsuoaka Masakazu Yashiro 2018World Journal of Gastroenterology2018,24,26:48
2Ulcerative colitis-associated colorectal cancer显示文摘The association between ulcerative colitis(UC) and colorectal cancer(CRC) has been acknowledged. One of the most serious and life threatening consequences of UC is the development of CRC(UC-CRC). UC-CRC patients are younger, more frequently have multiple cancerous lesions, and histologically show mucinous or signet ring cell carcinomas. The risk of CRC begins to increase 8 or 10 years after the diagnosis of UC. Risk factors for CRC with UC patients include young age at diagnosis, longer duration, greater anatomical extent of colonic involvement, the degree of inflammation, family history of CRC, and presence of primary sclerosing cholangitis. CRC on the ground of UC develop from non-dysplastic mucosa to indefinite dysplasia, lowgrade dysplasia, high-grade dysplasia and finally to invasive adenocarcinoma. Colonoscopy surveillance programs are recommended to reduce the risk of CRC and mortality in UC. Genetic alterations might play a role in the development of UC-CRC. 5-aminosalicylates might represent a favorable therapeutic option for chemoprevention of CRC.Masakazu Yashiro 2014World Journal of Gastroenterology2014,20,44:39
3Rho/ROCK signaling in motility and metastasis of gastric cancer显示文摘Gastric cancer is one of the most frequent and lethal malignancies worldwide because of high frequency of metastasis. Tumor cell motility and invasion play fundamental roles in cancer metastasis. Recent studies have revealed that the Rho/Rho-associated protein kinases(ROCK) pathway plays a critical role in the regulation of cancer cell motility and invasion. In addition,the Rho/ROCK pathway plays important roles in invasion and metastasis on the basis of its predominant function of cell cytoskeletal regulation in gastric cancer. According to the current understanding of tumor motility,there are two modes of tumor cell movement:mesenchymal and amoeboid. In addition,cancer cell movement can be interchangeable between the mesenchymal and amoeboid movements under certain conditions. Control of cell motility through the actin cytoskeleton creates the potential for regulating tumor cell metastasis. In this review we discuss Rho GTPases and ROCK signaling and describe the mechanisms of Rho/ROCK activity with regard to motility and metastasis in gastric cancer.In addition,we provide an insight of the therapeutic potential of targeting the Rho/ROCK pathway.Tasuku Matsuoka Masakazu Yashiro 2014World Journal of Gastroenterology2014,20,38:27
4Current status in remnant gastric cancer after distal gastrectomy显示文摘Remnant gastric cancer(RGC) and gastric stump cancer after distal gastrectomy(DG) are recognized as the same clinical entity. In this review, the current knowledges as well as the non-settled issues of RGC are presented. Duodenogastric reflux and denervation of the gastric mucosa are considered as the two main factors responsible for the development of RGC after benign disease. On the other hand, some precancerous circumstances which already have existed at the time of initial surgery, such as atrophic gastritis and intestinal metaplasia, are the main factors associated with RGC after gastric cancer. Although eradication of Helicobacter pylori(H. pylori) in remnant stomach is promising, it is still uncertain whether it can reduce the risk of carcinogenesis. Periodic endoscopic surveillance after DG was reported useful in detecting RGC at an early stage, which offers a chance to undergo minimally invasive endoscopic treatment or laparoscopic surgery and leads to an improved prognosis in RGC patients. Future challenges may be expected to elucidate the benefit of eradication of H. pylori in the remnant stomach if it could reduce the risk for RGC, to build an optimal endoscopic surveillance strategy after DG by stratifying the risk for development of RGC, and to develop a specific staging system for RGC for the standardization of the treatment by prospecting the prognosis.Masaichi Ohira Takahiro Toyokawa Katsunobu Sakurai Naoshi Kubo Hiroaki Tanaka Kazuya Muguruma Masakazu Yashiro Naoyoshi Onoda Kosei Hirakawa 2016World Journal of Gastroenterology2016,22,8:15
5Sentinel node navigation surgery for gastric cancer: Overview and perspective显示文摘The sentinel node(SN) technique has been established for the treatment of some types of solid cancers to avoid unnecessary lymphadenectomy. If node disease were diagnosed before surgery, minimal surgery with omission of lymph node dissection would be an option for patients with early gastric cancer. Although SN biopsy has been well ascertained in the treatment of breast cancer and melanoma, SN navigation surgery(SNNS) in gastric cancer has not been yet universal due to the complicated lymphatic flow from the stomach. Satisfactory establishment of SNNS will result in the possible indication of minimally invasive surgery of gastric cancer. However, the results reported in the literature on SN biopsy in gastric cancer are widely divergent and many issues are still to be resolved, such as the collection method of SN, detection of micrometastasis in SN, and clinical benefit. The difference in the procedural technique and learning phase of surgeons is also varied the accuracy of SN mapping. In this review, we outline the current status of application for SNNS in gastric cancer.Masakazu Yashiro Tasuku Matsuoka 2015World Journal of Gastrointestinal Surgery2015,7,1:13
6Arterial steroid injection therapy can inhibit the progression of severe acute hepatic failure toward fulminant liver failure显示文摘AIM: To utilize transcatheter arterial steroid injection therapy (TASIT) via the hepatic artery to reduce hepatic macrophage activity in patients with severe acute hepatic failure.METHODS: Thirty-four patients with severe acute hepatic failure were admitted to our hospital between June 2002 to June 2006 providing for the possibility of liver transplantation (LT). Seventeen patients were treated using traditional liver supportive procedures, and the other 17 patients additionally underwent TASIT with 1000 mg methylprednisolone per day for 3 continuous days. RESULTS: Of the 17 patients who received TASIT, 13 were cured without any complications, 2 died, and 2 underwent LT. Of the 17 patients who did not receive TASIT, 4 were self-limiting, 7 died, and 6 underwent LT. Univariate logistic analysis revealed that ascites, serum albumin, prothrombin time, platelet count, and TASIT were significant variables for predicating the prognosis. Multivariate logistic regression analysis using stepwise variable selection showed that prothrombin time, platelet count, and TASIT were independent predictive factors. CONCLUSION: TASIT might effectively prevent the progression of severe acute hepatic failure to a fatal stage of fulminant liver failure.Kazuhiro Kotoh Munechika Enjoji Makoto Nakamuta Tsuyoshi Yoshimoto Motoyuki Kohjima Shusuke Morizono Shinsaku Yamashita Yuki Horikawa Kengo Yoshimitsu Tsuyoshi Tajima Yoshiki Asayama Kousei Ishigami Masakazu Hirakawa 2006World Journal of Gastroenterology2006,12,41:13
7Prevention of esophageal strictures after endoscopic submucosal dissection显示文摘Endoscopic mucosal resection(EMR) and endoscopic submucosal dissection(ESD) have recently been accepted as less invasive methods for treating patients with early esophageal cancers such as squamous cell carcinoma and dysplasia of Barrett's esophagus.However,the large defects in the esophageal mucosa often cause severe esophageal strictures,which dramatically reduce the patient's quality of life.Although preventive endoscopic balloon dilatation can reduce dysphagia and the frequency of dilatation,other approaches are necessary to prevent esophageal strictures after ESD.This review describes several strategies for preventing esophageal strictures after ESD,with a particular focus on anti-inflammatory and tissue engineering approaches.The local injection of triamcinolone acetonide and other systemic steroid therapies are frequently used to prevent esophageal strictures after ESD.Tissue engineering approaches for preventing esophageal strictures have recently been applied in basic research studies.Scaffolds with temporary stents have been applied in five cases,and this technique has been shown to be safe and is anticipated to prevent esophageal strictures.Fabricated autologous oral mucosal epithelial cell sheets to cover the defective mucosa similarly to how commercially available skin products fabricated from epidermal cells are used for skin defects or in cases of intractable ulcers.Fabricated autologous oralmucosal-epithelial cell sheets have already been shown to be safe.Shinichiro Kobayashi Nobuo Kanai Takeshi Ohki Ryo Takagi Naoyuki Yamaguchi Hajime Isomoto Yoshiyuki Kasai Takahiro Hosoi Kazuhiko Nakao Susumu Eguchi Masakazu Yamamoto Masayuki Yamato Teruo Okano 2014World Journal of Gastroenterology2014,20,41:12
8Recent advances in the HER2 targeted therapy of gastric cancer显示文摘Recent advances in molecular targeted therapies, including targeting human epidermal growth factor receptor 2(HER2), had a major forward step in the therapy for gastric cancer patients. Application of HER2-targeted therapies, in particular trastuzumab in combination with chemotherapy in metastatic HER2-positive gastric cancers, resulted in improvements in response rates, time to progression and overall survival. Nevertheless, as with breast cancer, many patients with gastric cancer develop resistance to trastuzumab. Several promising therapies are currently being developed in combination with chemotherapy to increase the efficacy and overcome the cancerresistance. Here we review the current overview of clinical application of agents targeting HER2 in gastric cancer. We also discuss the ongoing trials supporting the use of HER2-targeted agents combined with cytotoxic agents or other monoclonal antibodies.Tasuku Matsuoka Masakazu Yashiro 2015World Journal of Clinical Cases2015,3,1:12
9S-1 plus cisplatin versus S-1 alone for first-line treatment of advanced gastric cancer (SPIRITS trial): a phase III trial显示文摘Wasaburo Koizumi Hiroyuki Narahara Takuo Hara Akinori Takagane Toshikazu Akiya Masakazu Takagi Kosei Miyashita Takashi Nishizaki Osamu Kobayashi Wataru Takiyama Yasushi Toh Takashi Nagaie Seiichi Takagi Yoshitaka Yamamura Kimihiko Yanaoka Hiroyuki Orita M 2008Lancet Oncology2008,,3:12
10Hepatic schwannoma:Imaging findings on CT,MRI and contrast-enhanced ultrasonography显示文摘A primary benign schwannoma of the liver is extremely rare and is difficult to preoperatively discriminate from a malignant tumor.We compared the imaging and pathological findings,and examined the possibility of preoperatively diagnosing a benign liver schwannoma.A 72-year-old woman was admitted to our hospital because of a 4.6-cm mass in the liver.A malignant tumor was suspected,and a right hepatectomy was performed.After this,the diagnosis of a primary benign schwannoma of the liver was made through pathological examination.Contrast-enhanced ultrasonography(CEUS) with Sonazoid showed minute blood flows into the septum and solid areas of the tumor in the vascular phase;most likely due to increased arterial flow associated with infiltration of chronic inflammatory cells.In the postvascular phase,CEUS showed contrast defect of cystic areas and delayed enhancement of solid areas;most likely due to aggregation of siderophores.Because discriminating between a benign and malignant schwannoma of the liver is difficult,surgery is generally recommended.However,the two key findings from CEUS may be useful in discriminating ancient schwannoma by recognizing the hemorrhage involved in the secondary degeneration and aggregation of siderophores.Yu Ota Kazunobu Aso Kenji Watanabe Takahiro Einama Koji Imai Hidenori Karasaki Ryuji Sudo Yosui Tamaki Mituyoshi Okada Yosihiko Tokusashi Toru Kono Naoyuki Miyokawa Masakazu Haneda Masahiko Taniguchi Hiroyuki Furukawa 2012World Journal of Gastroenterology2012,18,35:11
11Inhibitory effect of angiotensinⅡreceptor antagonist on hepatic stellate cell activation in non-alcoholic steatohepatitis显示文摘AIM: To investigate the efficacy of angiotensinⅡreceptor antagonist on hepatic stellate cells (HSCs) activation in the patients with non-alcoholic steatohepatitis (NASH). METHODS: Seven patients with NASH were prescribed losartan, a selective angiotensinⅡtype 1 receptor antagonist (50 mg/d) for 48 wk. Liver biopsies were performed both at the entry and end of the study in all patients. Quiescent and activated HSCs were identified by double immunostaining using anti-p75 andα-smooth muscle actin antibodies, and the number of each phenotype was counted. Similarly, the liver specimens obtained from the eight patients with non-alcoholic fatty liver (NAFL) were also examined as controls. RESULTS: In NASH hepatic tissues, activated HSCs were dominantly distributed as compared with those in NAFL. The 48-wk losartan treatment induced a remarkable decrease in activated HSCs and a mild increase in quiescent phenotypes. CONCLUSION: Our data suggest the crucial involvement of HSCs in anti-fibrotic effect of angiotensinⅡreceptor antagonist on patients with NASH.Shiro Yokohama Yoshihiko Tokusashi Kimihide Nakamura Yosui Tamaki Satoshi Okamoto Mituyoshi Okada Kazunobu Aso Takenao Hasegawa Masaru Aoshima Naoyuki Miyokawa Masakazu Haneda Masashi Yoneda 2006World Journal of Gastroenterology2006,12,2:10
12New anti-proliferative agent,MK615,from Japanese apricot “Prunus mume” induces striking autophagy in colon cancer cells in vitro显示文摘AIM: To investigate the anti-neoplastic effects of MK615, an extract from the Japanese apricot (Prunus mume), against colon cancer cells. METHODS: Three colon cancer cell lines, SW480, COLO, and WiDr, were cultured with MK615. Growth inhibition was evaluated by cell proliferation assay and killing activity was determined by lactate dehydrogenase assay. Induction of apoptosis was evaluated by annexin Ⅴ flow cytometry. Morphological changes were studied by light and electron microscopy, and immunofluorescence staining with Atg8. RESULTS: MK615 inhibited growth and lysed SW480, COLO and WiDr cells in a dose-dependent manner. Annexin Ⅴ flow cytometry showed that MK615 induced apoptosis after 6 h incubation, at which point the occurrence of apoptotic cells was 68.0%, 65.7% and 64.7% for SW480, COLO, and WiDr cells, respectively. Light and electron microscopy, and immunofluorescence staining with Atg8 revealed that MK615 induced massive cytoplasmic vacuoles (autophagosomes) in all three cell lines. CONCLUSION: MK615 has an anti-neoplastic effect against colon cancer cells. The effect may be exerted by induction of apoptosis and autophagy.Shozo Mori Tokihiko Sawada Toshie Okada Tatsushi Ohsawa Masakazu Adachi Kubota Keiichi 2007World Journal of Gastroenterology2007,13,48:9
13Cell sheet technology for regeneration of esophageal mucosa显示文摘The progress of tissue-engineering technology has realized development of new therapies to treat various disorders by using cultured cells. Cell-and tissue-based therapies have been successfully applied to human patients, and several tissue-engineered products have been approved by the regulatory agencies and are commercially available. In the review article, we describe our experience of development and clinical application of cell sheet-based regenerative medicine.Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) have been shown to be useful for removal of gastrointestinal neoplasms with less invasiveness compared with open surgery, especially in esophageal surgery. However, postoperative inflammation and stenosis are major complications observed after intensive mucosal resection. Therefore, we have developed novel regenerative medicine to prevent such complications and promote wound healing of esophageal mucosa after EMR or ESD. Transplantable oral mucosal epithelial cell sheets were fabricated from patients' own oral mucosa. Immediately after EMR or ESD, fabricated autologous cell sheets were endoscopically transplanted to the ulcer sites. We performed a preclinical study with a canine model. In human clinical settings, cell culture and cell sheet fabrication were performed in clean rooms according to good manufacturing practice guidelines, and pharmaceutical drugs were used as supplements to culture medium in place of research regents used in animal study. We believe that cell-based regenerative medicine would be useful to improve quality of life of patients after EMR or ESD.Ryo Takagi Masayuki Yamato Nobuo Kanai Daisuke Murakami Makoto Kondo Takaaki Ishii Takeshi Ohki Hideo Namiki Masakazu Yamamoto Teruo Okano 2012World Journal of Gastroenterology2012,18,37:9
14Single-incision laparoscopic surgery for colorectal cancer显示文摘AIM: To determine the effect of single-incision laparoscopic colectomy(SILC) for colorectal cancer on short-term clinical and oncological outcomes by comparison with multiport conventional laparoscopic colectomy(CLC).METHODS: A systematic review was performed using MEDLINE for the time period of 2008 to December 2014 to retrieve all relevant literature. The search terms were 'laparoscopy', 'single incision', 'single port', 'single site', 'SILS', 'LESS' and 'colorectal cancer'. Publications were included if they were randomized controlled trials, case-matched controlled studies, or comparative studies, in which patients underwent single-incision(SILS or LESS) laparoscopic colorectal surgery. Studies were excluded if they were non-comparative, or not including surgery involving the colon or rectum. A total of 15 studies with 589 patients who underwent SILC for colorectal cancer were selected.RESULTS: No significant differences between the groups were noted in terms of mortality or morbidity. The benefit of the SILC approach included reduction in conversion rate to laparotomy, but there were no significant differences in other short-term clinical outcomes between the groups. Satisfactory oncological surgical quality was also demonstrated for SILC for the treatment of colorectal cancer with a similar average lymph node harvest and proximal and distal resection margin length as multiport CLC.CONCLUSION: SILC can be performed safely with similar short-term clinical and oncological outcomes as multiport CLC.yasumitsu hirano masakazu hattori kenji douden yasuhiro ishiyama yasuo hashizume 2016World Journal of Gastrointestinal Surgery2016,8,1:9
15Fibroblast growth factor receptor signaling as therapeutic targets in gastric cancer显示文摘Fibroblast growth factor receptors(FGFRs) regulate a variety of cellular functions, from embryogenesis to adult tissue homeostasis. FGFR signaling also plays significant roles in the proliferation, invasion, and survival of several types of tumor cells. FGFR-induced alterations, including gene amplification, chromosomal translocation, and mutations, have been shown to be associated with the tumor initiation and progression of gastric cancer, especially in diffuse-type cancers. Therefore, the FGFR signaling pathway might be one of the therapeutic targets in gastric cancer. This review aims to provide an overview of the role of FGFR signaling in tumorigenesis, tumor progression, proliferation, and chemoresistance. We also discuss the accumulating evidence that demonstrates the effectiveness of using clinical therapeutic agents to inhibit FGFR signaling for the treatment of gastric cancer.Masakazu Yashiro Tasuku Matsuoka 2016World Journal of Gastroenterology2016,22,8:8
16Pseudolymphoma of the liver associated with primary biliary cirrhosis:A case report and review of literature显示文摘We report a case of two pseudolymphomas of the liver in a 63-year-old Japanese woman with primary biliary cirrhosis.One of the lesions was found incidentally during a medical examination,presenting as a 10 mm hypodense nodule that revealed hyperdensity in the early phase and hypodensity in the late phase in computed tomography(CT)after injection of contrast medium.Retrospectively,the 10 mm nodule had first been discovered as a 4 mm nodule during CT 4 years previously.Superparamagnetic iron oxide-enhanced MRI revealed another 4 mm hyperintense nodule in segment 6 in addition to the 10 mm hyperintense nodule in segment 7.CT during arterial portography revealed two hypointense nodules.Findings with other imaging modalities such as ultrasonography,magnetic resonance imaging,and hepatic angiography were consistent with hepatocellular carcinoma.A right posterior segmentectomy was performed,and the lesions were microscopically diagnosed as pseudolymphoma.To the best of our knowledge,only 31 other cases of this disease have ever been reported,with a highly asymmetrical male:female ratio of 1:9.7.Although we could find only one case of transformation of hepaticpseudolymphoma into lymphoma in the liver,the exact nature of development from benign pseudolymphoma to malignant lymphoma is still not fully understood and cases of hepatic lymphoma need to be followed carefully.Toshihide Okada Hiroshi Mibayashi Kenkei Hasatani Yoshiaki Hayashi Shigetsugu Tsuji Yoshibumi Kaneko Masashi Yoshimitsu Takashi Tani Yoh Zen Masakazu Yamagishi 2009World Journal of Gastroenterology2009,15,36:8
17Helicobacter pylori eradication to prevent gastric cancer: underlying molecular and cellular mechanisms显示文摘众多的细胞、分子的事件在胃的癌症的开发被描述了。在这篇文章,我们 Helicobacter pylori (H pylori ) 的 overviewed 角色一些在胃的致癌作用的重要事件上的感染并且讨论了这些细胞、分子的事件是否在感染的痊愈以后是可逆的。有几个细菌的部件,影响胃的致癌作用的胃的上皮的动力学和提升。细菌也增加基因不稳定性和变化的风险由于没有并且另外的反应的氧种类。肿瘤的渐成说 silencing 压制或象 RUNX3 那样的基因可以与肠的组织变形改变那些的胃腺的显型变化的频率。象生长因素, cytokines 和 COX-2 的增加的表示那样的主机因素也在 H pylori 积极的题目在非癌的织物被报导了。大多数上述现象在感染的痊愈以后被颠倒,是引人注目的。然而,他们的一些包括在 COX-2 的表示上继续存在并且可以为致癌作用增加风险在甚至在成功的 H pylori 根除以后遇见了无形或发育异常的的粘膜。因此, H pylori 根除不能完全为胃的致癌作用废除风险。胃的癌症取决于预定和目标人口的在压制的感染的痊愈的效率,和保证推进调查。Shingo Tsuji Masahiko Tsujii Hiroaki Murata Tsutomu Nishida Masato Komori Masakazu Yasumaru Shuji Ishii Yoshiaki Sasayama Sunao Kawano Norio Hayashi 2006World Journal of Gastroenterology2006,12,11:7
18MK615 inhibits pancreatic cancer cell growth by dual inhibition of Aurora A and B kinases显示文摘AIM:To investigate the anti-neoplastic effect of MK615, an anti-neoplastic compound isolated from Japanese apricot, against human pancreatic cancer cells in vitro. METHODS: Three human pancreatic cancer cell lines PANC-1, PK-1, and PK45H were cultured with MK615 at concentrations of 600, 300, 150, and 0 μg/mL. Growth inhibition was evaluated by cell proliferation assay, and killing activity was determined by lactate dehydrogenase (LDH) assay. Expression of Aurora A and B kinases was detected by real-time polymerase chain reaction (PCR) and Western blotting. Cell cycle stages were evaluated by flow cytometry. RESULTS: The growth inhibitory rates of MK615 at 150, 300, and 600 μg/mL were 2.3% ± 0.9%, 8.9% ± 3.2% and 67.1% ± 8.1% on PANC1 cells, 1.3% ± 0.3%, 8.7% ± 4.1% and 45.7 ± 7.6% on PK1 cells, and 1.2 ± 0.8%, 9.1% ± 2.1% and 52.1% ± 5.5% on PK45H cells, respectively (P <0.05). The percentage cytotoxicities of MK615 at 0, 150, 300, and 600 μg/mL were 19.6% ± 1.3%, 26.7% ± 1.8%, 25.5% ± 0.9% and 26.4% ± 0.9% in PANC1 cells, 19.7% ± 1.3%, 24.7% ± 0.8%, 25.9% ± 0.9% and 29.9% ± 1.1% in PK1 cells, and 28.0% ± 0.9%, 31.2% ± 0.9%, 30.4% ± 1.1% and 35.3 ± 1.0% in PK45H cells, respectively (P < 0.05). Real-time PCR and Western blotting showed that MK615 dually inhibited the expression of Aurora A and B kinases. Cell cycle analysis revealed that MK615 increased the population of cells in G2/M phase. CONCLUSION: MK615 exerts an anti-neoplastic effect on human pancreatic cancer cells in vitro by dual inhibition of Aurora A and B kinases.Toshie Okada Tokihiko Sawada Tatsushi Osawa Masakazu Adachi Keiichi Kubota 2008World Journal of Gastroenterology2008,14,9:6
19MK615 decreases RAGE expression and inhibits TAGE-induced proliferation in hepatocellular carcinoma cells显示文摘AIM:To investigate the proliferative effect of advanced glycation end-products(AGEs) and the role of their cellular receptor(RAGE) on hepatocellular carcinoma(HCC) cells,and the inhibitory effects of MK615,an extract from Japanese apricot,against AGEs were also evaluated.METHODS:Two HCC cell lines,HuH7 and HepG2,were used.Expression of RAGE was investigated by poly-merase chain reaction,Western blotting,and flow cytemetry(FACS).The effect of MK615 on RAGE expression was also evaluated by FACS.The proliferative effects of a control(unglycated bovine serum albumin),glucosederived AGEs(Glc-AGE),and glyceraldehyde-derived AGEs(Glycer-AGE),and the anti-proliferative effect of MK615 against AGEs,were evaluated using MTT assays.RESULTS:Expression of RAGE was confirmed at both the mRNA and protein levels in both HuH7 and HepG2.FACS revealed that the level of RAGE expression was higher in HuH7 than in HepG2.Treatment with 0.1 μg/mL MK615 decreased the expression level of RAGE from 24.3% to 3.7% in HuH7 and from 6.2% to 4.8% in HepG2.The growth indices for the control,Glc-AGE,and Glycer-AGE were 1.06 ± 0.08,0.99 ± 0.04,and 1.38 ± 0.05,respectively,in HuH7(P = 0.037),and were 1.03 ± 0.04,1.04 ± 0.03,and 1.07 ± 0.05,respectively,in HepG2(P > 0.05).When the cells were cultured simultaneously with Glycer-AGE and MK615,MK615 abrogated the proliferative effect of Glycer-AGE in HuH7.CONCLUSION:Only Glycer-AGE has a proliferative effect on HuH7,which expresses a higher level of RAGE.MK615 suppresses the proliferative effect of GlycerAGE on HuH7 by decreasing the expression of RAGE.Yuhki Sakuraoka Tokihiko Sawada Toshie Okada Takayuki Shiraki Yoshikazu Miura Katsuya Hiraishi Tatsushi Ohsawa Masakazu Adachi Jun-ichi Takino Masayoshi Takeuchi Keiichi Kubota 2010World Journal of Gastroenterology2010,16,42:6
20Precision medicine for gastrointestinal cancer:Recent progress and future perspective显示文摘Gastrointestinal(GI)cancer has a high tumor incidence and mortality rate worldwide.Despite significant improvements in radiotherapy,chemotherapy,and targeted therapy for GI cancer over the last decade,GI cancer is characterized by high recurrence rates and a dismal prognosis.There is an urgent need for new diagnostic and therapeutic approaches.Recent technological advances and the accumulation of clinical data are moving toward the use of precision medicine in GI cancer.Here we review the application and status of precision medicine in GI cancer.Analyses of liquid biopsy specimens provide comprehensive real-time data of the tumor-associated changes in an individual GI cancer patient with malignancy.With the introduction of gene panels including next-generation sequencing,it has become possible to identify a variety of mutations and genetic biomarkers in GI cancer.Although the genomic aberration of GI cancer is apparently less actionable compared to other solid tumors,novel informative analyses derived from comprehensive gene profiling may lead to the discovery of precise molecular targeted drugs.These progressions will make it feasible to incorporate clinical,genome-based,and phenotype-based diagnostic and therapeutic approaches and apply them to individual GI cancer patients for precision medicine.Tasuku Matsuoka Masakazu Yashiro 2020World Journal of Gastrointestinal Oncology2020,12,1:5
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