Angiotensin I-converting enzyme gene plays a crucial role in the pathology of carcinomas in colorectal cancer.

In this study, our purpose was to investigate the methylation status of ACE and explored its prognostic value in CRC. The expression of ACE was detected by quantitative real-time polymerase chain reaction (qRT-PCR) analysis while the methylation status of ACE was measured via methylation-specific polymerase chain reaction (MSP). The result demonstrated that ACE expression was up-regulated in tumour tissues and HT-29 cells compared with the controls. ACE was also confirmed to be hypomethylated in CRC. Next, we evaluated the influence of ACE hypomethylation on cell growth. It was proved to be a favourable factor for the cell proliferation, cell colony forming, but an inhibitor for the cell apoptosis of CRC cells according to MST assay, colony forming assay and flow cytometry assay. ACE hypomethylation was also considered to be related to the prognosis of CRC through Cox regression analysis. Taken together, the over-expression of ACE was regulated by its hypomethylation and the ACE hypomethylation might be an independent prognostic indicator in CRC. PMID: 31203648 [PubMed - in process]
Source: Artificial Cells, Nanomedicine and Biotechnology - Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research

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ConclusionsComplete perioperative colonoscopy in patients with CRC should be performed to reduce the rate of metachronous carcinoma. Postoperative completion of preoperative insufficiently colonoscoped patients is recommended.
Source: International Journal of Colorectal Disease - Category: Gastroenterology Source Type: research
Publication date: October 2019Source: Cancer Epidemiology, Volume 62Author(s): Said Abasse Kassim, Weiyan Tang, Muhammad Abbas, Shenzhen Wu, Qingdao Meng, Chengcheng Zhang, Xiaobo Li, Rui ChenAbstractPoor survival among colorectal cancer (CRC) patients has been widely associated with clinico-epidemiological features and treatment regimen. In Jiangsu (China), however, it is not known which one of the prognostic factors explains the survival disparities among patients with CRC. This prospective study using 1078 patients (stages I-IV) that underwent surgery at Jiangsu Hospital, explored the relevant factors affecting the prog...
Source: Cancer Epidemiology - Category: Cancer & Oncology Source Type: research
Abstract BACKGROUND AND AIM: Fecal calprotectin has successfully been widely recommended as a sensitive biomarker of inflammatory bowel diseases (IBD). Recently, we have identified an excellent new fecal biomarker, B-cell activating factor (BAFF), as effective as fecal calprotectin for diagnosing intestinal inflammation. Here in this study, we sought to investigate the potential of fecal BAFF as a screening marker for gastrointestinal inflammation and neoplasms in patients with abdominal discomfort. METHODS: 230 patients with abdominal discomfort were prospectively enrolled into this study and fecal samples w...
Source: Clinical and Developmental Immunology - Category: Allergy & Immunology Authors: Tags: Clin Exp Immunol Source Type: research
This review focuses on the role of oxidized sterols in three major gastrointestinal cancers (hepatocellular carcinoma, pancreatic and colon cancer) and how the circadian clock affects the carcinogenesis by regulating the lipid metabolism and beyond. While each field of research (cancer, oxysterols, and circadian clock) is well studied within their specialty, little is known about the intertwining mechanisms and how these influence the disease etiology in each cancer type. Oxysterols are involved in pathology of these cancers, but final conclusions about their protective or damaging effects are elusive, since the effect dep...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
AbstractBackground.High‐grade neuroendocrine carcinomas are rare in the gastrointestinal tract. However, treatment patterns and outcomes have not been well described.Subjects, Materials, and Methods.The National Cancer Database was analyzed. The primary objective was to describe the clinical outcomes and identify prognostic factors. Univariate and multivariate analyses were done to identify factors associated with patient outcome.Results.A total of 1,861 patients were identified between 2004 and 2013. The mean age was 63 years (standard deviation ±13). The majority of the patients (78.1%) were non‐Hispanic white...
Source: The Oncologist - Category: Cancer & Oncology Authors: Tags: Gastrointestinal Cancer Source Type: research
CONCLUSIONS: In our population-based cohort of HIV-infected subjects with long-term follow-up, the risk of progression from anal intraepithelial neoplasia III to anal squamous cell carcinoma was higher than reported in other studies and was not associated with the receipt of anal intraepithelial neoplasia III treatment. See Video Abstract at http://links.lww.com/DCR/A933.
Source: Diseases of the Colon and Rectum - Category: Gastroenterology Tags: Original Contributions: Colorectal Cancer Source Type: research
Abstract Aberrant expressions of various long non-coding RNAs (lncRNAs) have been involved in the progression and pathogenesis of various carcinomas. However, the expression and biological function of SLCO4A1-AS1 in colorectal cancer (CRC) remain poorly understood. Gain- and loss-of-function assays were applied to determine the roles of SLCO4A1-AS1 in autophagy and CRC progression. qRT-PCR and in situ hybridization (ISH) results showed that SLCO4A1-AS1 was positively associated with PARD3 expression in CRC tissues. In vitro and in vivo studies revealed that SLCO4A1-AS1 knockdown repressed cytoprotective autophagy ...
Source: Aging - Category: Biomedical Science Authors: Tags: Aging (Albany NY) Source Type: research
In addition to the adenoma to carcinoma sequence, colorectal carcinogenesis can occur via the serrated pathway. Studies have focused on clarification of categories and molecular features of serrated polyps, as well as endoscopic detection and risk assessment. Guidelines from the World Health Organization propose assigning serrated polyps to categories of hyperplastic polyps, traditional serrated adenomas (TSAs), and sessile serrated lesions (SSLs). TSAs and SSLs are precursors to colorectal cancer.
Source: Gastroenterology - Category: Gastroenterology Authors: Source Type: research
In this study, we aimed to evaluate the prognostic value and transcriptional regulation mechanism of HHLA2 according to clinical and experimental data from multiple databases, including cBioPortal, TCGA, Cistrome, TIMER, Oncomine, Kaplan-Meier, GeneXplain. It was found that the expression of HHLA2 was significantly elevated in renal tumors, and significantly decreased in colorectal tumors. Pan-cancer survival analysis indicates that HHLA2 was an independent prognostic factor in 9/20 of human cancers. Especially in renal clear cell carcinoma(P =3.0E-7). Through plotting survival curve in Kaplan-Meier Plotter, it was found t...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Authors: Gravina AG, Dallio M, Tuccillo C, Martorano M, Abenavoli L, Luzza F, Stiuso P, Lama S, Grieco P, Merlino F, Caraglia M, Loguercio C, Federico A Abstract BACKGROUND: Urotensin II (U-II) is a vasoactive peptide that interacts with a specific receptor named UTR. Recently, our group has demonstrated increased UTR expression in both human colon adenocarcinoma cell lines and adenomatous polyps, as well as in colon carcinoma samples if compared to healthy colon samples of the same patients. We also showed that an UTR agonist induced an increase in colon adenocarcinoma cell growth in vitro, whereas the UTR block w...
Source: Minerva Gastroenterologica e Dietologica - Category: Gastroenterology Tags: Minerva Gastroenterol Dietol Source Type: research
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