Background: Gut microbial dysbiosis contributes to the development of colorectal cancer (CRC). We evaluated the utility of fecal bacterial biomarker candidates identified by our 16S rDNA sequencing analysis for CRC diagnosis.
Methods: We measured the relative abundance of (), (), (), and () by quantitative PCR in fecal samples from 2 cohorts of 903 individuals. We evaluated and validated the diagnostic performance of these microbial ratios and investigated the antagonistic effect of against 3 different indicator stains.
Results: The microbial ratio of to () had a superior sensitivity of 84.6% and specificity of 92.3% in detecting CRC (area under the curve, AUC = 0.911). The combination of and improved the diagnostic value (AUC = 0.943). Moreover, the combination of and offered 60.0% specificity and 90.0% sensitivity in detecting stage I of CRC (AUC = 0.804). In particular, was negatively correlated with in the CRC group. The performance for CRC diagnosis was confirmed in the validation cohort II. The culture supernatant from exhibited strong bactericidal activity against probiotics and strains.
Conclusions: This study found that could play a role in microbiota dysbiosis via the secreted antagonistic substances against probiotics. Moreover, the ratio of to the important probiotics and was identified as a valuable biomarker for screening early CRC.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1373/clinchem.2018.289728 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
TRPV4 as a Novel Regulator of Ferroptosis in Colon Adenocarcinoma: Implications for Prognosis and Therapeutic Targeting.
Dig Dis Sci
January 2025
Ningxia Medical University, Xing Qing Block, Shengli Street No.1160, Yin Chuan City, 750004, Ningxia Province, People's Republic of China.
Background: Colon adenocarcinoma (COAD) is a leading cause of cancer-related mortality worldwide. Transient receptor potential vanilloid 4 (TRPV4), a calcium-permeable non-selective cation channel, has been implicated in various cancers, including COAD. This study investigates the role of TRPV4 in colon adenocarcinoma and elucidates its potential mechanism via the ferroptosis pathway.
View Article and Find Full Text PDFFadA antigen of Fusobacterium nucleatum: implications for ceRNA network in colorectal cancer and adenomatous polyps progression.
Discov Oncol
January 2025
Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Introduction: Colorectal cancer (CRC) is the second most common cause of cancer-related deaths globally. The gut microbiota, along with adenomatous polyps (AP), has emerged as a plausible contributor to CRC progression. This study aimed to scrutinize the impact of the FadA antigen derived from Fusobacterium nucleatum on the expression levels of the ANXA2 ceRNA network and assess its relevance to CRC advancement.
View Article and Find Full Text PDFPreoperative Carcinoembryonic Antigen as a Predictor of 5-Year Survival in Rectal Cancer: Proposing a New Prognostic Cutoff.
J Gastrointest Cancer
January 2025
Colorectal Research Center, Imam Khomeini Hospital complex, Tehran University of Medical Sciences, Keshavarz Blvd, Tehran, Iran.
Purpose: Carcinoembryonic antigen (CEA) is an important prognostic factor for rectal cancer. This study aims to introduce a novel cutoff point for CEA within the normal range to improve prognosis prediction and enhance patient stratification in rectal cancer patients.
Methods: A total of 316 patients with stages I to III rectal cancer who underwent surgical tumor resection were enrolled.
Dihydropyrimidine enzyme activity and its effect on chemotherapy toxicity: importance of genetic testing.
Cancer Chemother Pharmacol
January 2025
Markey Cancer Center, University of Kentucky, Lexington, KY, USA.
Purpose: Patients with partial or complete DPD deficiency have decreased capacity to degrade fluorouracil and are at risk of developing toxicity, which can be even life-threatening.
Case: A 43-year-old man with moderately differentiated rectal adenocarcinoma on capecitabine presented to the emergency department with complaints of nausea, vomiting, diarrhea, weakness, and lower abdominal pain for several days. Laboratory findings include grade 4 neutropenia (ANC 10) and thrombocytopenia (platelets 36,000).
Network Meta-Analysis: Comparison of Endoscopic Dysplasia Detection Technologies in Inflammatory Bowel Disease.
Aliment Pharmacol Ther
January 2025
Division of Gastroenterology and Hepatology, Department of Medicine, McGill University Health Center, Montreal, Quebec, Canada.
Background: Novel colorectal cancer endoscopic surveillance techniques for inflammatory bowel disease (IBD) have recently been developed.
Aims: Compare the efficacy of currently available techniques for dysplasia detection in colonic IBD.
Methods: We conducted a systematic literature search from inception to March 2024 for randomized controlled trials (RCTs) or prospective cohort studies enrolling adults with IBD and having surveillance colonoscopy for dysplasia screening.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!