Abstract:
AIM:To investigate the role of Delta-like ligand 4 (DLL4) on tumour growth in hepatitis B virus (HBV)-associated hepatocellular carcinoma (HCC) in vivo. METHODS:We suppressed DLL4 expression in an HBV expressing HCC cell line, HepG2.2.15 and analysed the growth ability of cells as subcutaneous tumours in nude mice. The expression of tumour angiogenesis regulators, VEGF-A and VEGF-R2 in tumour xenografts were examined by western blotting. The tumour proliferation and neovasculature were examined by immunohistochemistry. The viral replication and viral protein expression were measured by quantitative PCR and western blotting, respectively. RESULTS:Eighteen days after implantation, tumour volume in mice implanted with shDLL4 HepG2.2.15 was significantly smaller than in mice implanted with control HepG2.2.15 (P < 0.0001). The levels of angiogenesis regulators, VEGF-A and VEGF-R2 were significantly decreased in implanted tumours with suppressed DLL4 compared with the control group (P < 0.001 and P < 0.05, respectively). Furthermore, the suppression of DLL4 expression in tumour cells reduced cell proliferation and the formation of new blood vessels in tumours. Unexpectedly, increased viral replication was observed after suppression of DLL4 in the tumours. CONCLUSION:This study demonstrates that DLL4 is important in regulating the tumour growth of HBV-associated HCC as well as the neovascularization and suppression of HBV replication.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Kunanopparat A,Issara-Amphorn J,Leelahavanichkul A,Sanpavat A,Patumraj S,Tangkijvanich P,Palaga T,Hirankarn Ndoi
10.3748/wjg.v24.i34.3861subject
Has Abstractpub_date
2018-09-14 00:00:00pages
3861-3870issue
34eissn
1007-9327issn
2219-2840journal_volume
24pub_type
杂志文章abstract:AIM:To study the nuclear microsatellite instability (nMSI) at BAT26 and mitochondrial microsatellite instability (mtMSI) in the occurrence and development of hepatocellular carcinoma and the relationship between nMSI and mtMSI. METHODS:nMSI was observed with PCR and mtMSI with PCR-SSCP in 52 cases of hepatocellular ca...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i3.371
更新日期:2004-02-01 00:00:00
abstract::A primary clear cell adenocarcinoma of the colon is a rare oncologic entity. We herein report a case of such a tumor of the sigmoid colon in a 71-year-old woman who was successfully treated by an endoscopic polypectomy in our hospital. We also reviewed the published reports regarding cases of primary clear cell tumors...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.14.1137
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abstract::The biology of colorectal cancer differs according to its location within the large intestine. A report published in a previous issue of World Journal of Gastroenterology (November 2010) evaluated the importance of tumor location as a risk factor for lymph node metastasis in colorectal cancer, and showed that rectal c...
journal_title:World journal of gastroenterology
pub_type: 评论,信件
doi:10.3748/wjg.v17.i29.3465
更新日期:2011-08-07 00:00:00
abstract:AIM:To evaluate the role of three-dimensional contrast-enhanced magnetic resonance angiography (3D CE MRA) in the diagnosis of Budd-Chiari syndrome (BCS). METHODS:Twenty-three patients with BCS underwent 3D CE MRA examination, in which 13 cases were secondary to either hepatocellular carcinoma (11 cases), right adrena...
journal_title:World journal of gastroenterology
pub_type: 临床试验,杂志文章
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更新日期:2003-10-01 00:00:00
abstract:AIM:To retrospectively analyze the fields of application, diagnostic yields and findings of OMOM capsule endoscopy in Chinese patients. METHODS:A database including 2400 Chinese patients who received OMOM capsule endoscopy in 27 endoscopy centers in China was retrieved from the Jianshan Science and Technology Ltd. OMO...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i21.2669
更新日期:2010-06-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i10.1308
更新日期:2011-03-14 00:00:00
abstract:AIM:To identify the prevalence of hepatitis B e antigen (HBeAg) and to assess the association of hepatitis B virus (HBV) core promoter mutations and viral load in Indonesian patients. METHODS:Sixty-four patients with chronic hepatitis, 65 with liver cirrhosis and 50 with hepatocellular carcinoma were included in this ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i6.708
更新日期:2011-02-14 00:00:00
abstract:AIM:To classify gallstone disease as a basis for assessment of post-cholecystectomy symptoms. METHODS:One hundred and fifty three patients with a clinical and ultrasonographic diagnosis of gallstones filled out a structured questionnaire on abdominal pain symptoms and functional gastrointestinal disorder (FGID) before...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i12.1365
更新日期:2012-03-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v23.i33.6147
更新日期:2017-09-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i22.2877
更新日期:2012-06-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i31.7099
更新日期:2016-08-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v16.i6.782
更新日期:2010-02-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v26.i40.6279
更新日期:2020-10-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i22.3609
更新日期:2006-06-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v19.i2.174
更新日期:2013-01-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i8.1679
更新日期:2003-08-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i41.15018
更新日期:2014-11-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i6.800
更新日期:2004-03-15 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i26.5958
更新日期:2016-07-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i39.11160
更新日期:2015-10-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v12.i28.4588
更新日期:2006-07-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v23.i15.2731
更新日期:2017-04-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v8.i2.193
更新日期:2002-04-01 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v12.i17.2667
更新日期:2006-05-07 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i16.1975
更新日期:2012-04-28 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i6.971
更新日期:2006-02-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i43.16095
更新日期:2014-11-21 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v16.i7.818
更新日期:2010-02-21 00:00:00
abstract::A 91-year-old man was referred to our hospital with intermittent dysphagia. He had undergone esophagectomy for esophageal cancer (T3N2M0 Stage III) 11 years earlier. Endoscopic examination revealed an anastomotic stricture; signs of inflammation, including redness, erosion, edema, bleeding, friability, and exudate wit...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i30.9223
更新日期:2015-08-14 00:00:00
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journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i29.4451
更新日期:2005-08-07 00:00:00