Fusobacterium nucleatum and the Immune System in Colorectal Cancer

AbstractPurpose of ReviewTo summarize the relationship between colorectal cancer (CRC), immunity, and the gut microbiome, focusing on the population ofFusobacterium, particularlyFusobacterium nucleatum, which may mediate CRC initiation and progression by inhibiting host anti-tumor immunity.Recent FindingsThe onset and advancement of CRC involves genetic and epigenetic alterations and are modified by dietary and environmental factors. There is increasing evidence suggesting that gut bacteria, such asFusobacterium nucleatum, may promote CRC development. The mechanisms through whichFusobacterium nucleatum from the oral cavity colonizes the gut mucosa and affect CRC development and progression remain unclear. Data from metagenomics analyses have shown an enrichment ofFusobacterium nucleatum in CRC tissues, which has been confirmed by quantitative PCR for the 16S ribosomal RNA gene DNA sequence ofFusobacterium nucleatum. Recent studies also suggest thatFusobacterium nucleatum may preferentially bind to cancerous cells, aided by Annexin A1, specifically expressed in proliferating CRC cells. This is consistent with a previous report that althoughFusobacterium nucleatum is detected in both colorectal adenoma and adenocarcinoma tissues, the fadA gene levels are significantly higher in the latter than in the former. Other potential mechanisms include the ability of Fusobacterium to produce cancer-associated metabolites or genotoxic factors and possibly a direct interaction with the hos...
Source: Current Colorectal Cancer Reports - Category: Cancer & Oncology Source Type: research

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CONCLUSIONS: Considering the age group in which rectal prolapse is most commonly seen, and the change in bowel habits, chronic constipation and irritation chronic seen in rectal prolapse may be responsible for the development of rectum cancer, therefore endoscopic screening should not be overlooked in rectal prolapse cases. KEY WORDS: Anorectal emergencies, Colon cancer, Rectal prolapse. PMID: 31723051 [PubMed - in process]
Source: Annali Italiani di Chirurgia - Category: Surgery Tags: Ann Ital Chir Source Type: research
ConclusionsNatural active food-derived ingredients are marketed as having several benefits on the skin. Their incorporation in food supplements and cosmetics is a reality already marketed. The truth about the benefits of food ingredients in cosmetics is not always properly discussed. The trend of “beauty from within” by oral supplementation is now accompanying the other trend that is “from the kitchen table to the skin”, that refers to the possibility to create cosmetics with the ordinary ingredients one have in the kitchen.Graphical abstract
Source: Trends in Food Science and Technology - Category: Food Science Source Type: research
Publication date: Available online 15 November 2019Source: Trends in Food Science &TechnologyAuthor(s): M.A. Augustin, L. Sanguansri, E.M. Fox, L. Cobiac, M.B. ColeAbstractBackgroundFruits and vegetables are an excellent source of nutrients, with numerous health benefits. Most consumers are not meeting the daily recommended intake of fruits and vegetables. Yet, a significant amount of fruits and vegetables that is produced is wasted. There are opportunities to recover the wasted fruits and vegetables for manufacturing value-added products to improve the sustainability of healthy diets and reduce the environmental footp...
Source: Trends in Food Science and Technology - Category: Food Science Source Type: research
Publication date: Available online 15 November 2019Source: Trends in Food Science &TechnologyAuthor(s): Ryoiti KiyamaAbstractBackgroundGreen tea is produced from the tea plant Camellia sinensis without fermentation, and contains characteristic constituents, which are associated with health-promoting effects such as physiological, immunological, neurological and psychological effects, and protective effects against diseases, such as cancer, cardiovascular diseases and diabetes. Catechins, such as catechin, epicatechin, epigallocatechin, epicatechin-3-O-gallate and epigallocatechin-3-O-gallate, and other green tea consti...
Source: Trends in Food Science and Technology - Category: Food Science Source Type: research
CONCLUSIONS: Both STX3451 and STX2895 provide new approaches for inducing cell death and lowering tumour burden in NF2 as well as in NF1, which both have limited treatment options. PMID: 31730023 [PubMed - in process]
Source: BMC Pharmacology and Toxicology - Category: Drugs & Pharmacology Tags: BMC Pharmacol Toxicol Source Type: research
CONCLUSIONS: The matrices and the questionnaire have a great diagnostic performance which seems interesting for a use as a screening tool for occupational exposures. These results have yet to be confirmed by large-scale studies. PMID: 31727556 [PubMed - as supplied by publisher]
Source: Revue des Maladies Respiratoires - Category: Respiratory Medicine Tags: Rev Mal Respir Source Type: research
The objective of this paper is to synthesise current knowledge on ALK rearrangement and its impact on the management of advanced NSCLC. Several inhibitors of the tyrosine kinase of ALK (crizotinib, ceritinib, alectinib) have been approved as first line therapies in patients with advanced ALK positive NSCLC, which are associated with a better median progression-free survival than conventional chemotherapy. Unfortunately, the emergence of drug resistance leads to tumor progression. In patients with oligoprogressive disease if local ablative therapy can be effected, continuing with the same ALK tyrosine kinase inhibitor is on...
Source: Revue des Maladies Respiratoires - Category: Respiratory Medicine Tags: Rev Mal Respir Source Type: research
Publication date: Available online 15 November 2019Source: Biotechnology ReportsAuthor(s): Pradeep Kumar, Balwant Singh, Vikram Thakur, Abhishek Thakur, Nandita Thakur, Deepak Pandey, Duni ChandAbstractTaxol® (generic name Paclitaxel) is a chemotherapeutic drug, effective against head, neck, breast, lung, bladder, ovary, and cervix cancers. Rising demands in chemotherapy and limited supply of natural taxol have ultimately increased the cost of the drug. Semi synthesis using taxol precursors is not able to meet the global supply and has intensified the need to find alternative ways of taxol production. In the present st...
Source: Biotechnology Reports - Category: Biotechnology Source Type: research
Publication date: Available online 15 November 2019Source: Biosensors and BioelectronicsAuthor(s): Liying Zhao, Huaixia Yang, Xiaoke Zheng, Jinge Li, Lihe Jian, Weisheng Feng, Jinming KongAbstractCytokeratin fragment antigen 21–1 (CYFRA 21–1) DNA is a crucial biomarker closely associated with non-small cell lung cancer. Here, we fabricated a novel electrochemical biosensor for ultrasensitive detection of CYFRA 21–1 DNA via polysaccharide and electrochemically mediated atom transfer radical polymerization (eATRP) dual signal amplification. Specifically, thiolated peptide nucleic acid (PNA) probes at 5&prim...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
Authors: Yang JD, Ma L, Zhu Z Abstract We assessed the expression of Serpin Family E Member 1 (SERPINE1) and its prognostic values in gastric adenocarcinoma (GAC) by using the data from TCGA database. The biological functions of SERPINE1 in GAC cells were detected by cell counting Kit-8, colony-forming, Transwell, and wound-healing assays, appropriately. Relative mRNA and protein levels were detected by RT-qPCR and western blot. Bioinformatics analysis indicated that SERPINE1 was significantly up-regulated in GAC tissues compared to normal tissues. High SERPINE1 expression led to a short overall survival and could ...
Source: Journal of Chemotherapy - Category: Cancer & Oncology Tags: J Chemother Source Type: research
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