Naturally, sugar metabolic process has an effective experience of pancreatic disorder


Naturally, sugar metabolic process has an effective experience of pancreatic disorder

A previous studies possess presented that identification price out-of Fusobacterium within the Desktop computer structures (283 instances) is actually 8

In this study, we also first try to comprehensively report the pathogenetic effect of Fusobacterium periodonticum on the development of PC. Fusobacterium nucleatum has been shown to be involved in the development of colon cancer, and its concentration levels in the adenomas and cancer tissues were higher . Moreover, studies have revealed that FadA, a virulence factor secreted by Fusobacterium nucleatum, is an important factor in carcinogenesis . FadA binds to E-catenin, activates ?-catenin, leads to upregulation of “proinflammatory factors, wnt signaling, and oncogenes,” and stimulates cell proliferation . Actually, Fusobacterium periodonticum and Fusobacterium nucleatum are the only bacteria in the genus Fusobacterium that can secrete FadA virulence factors. In addition, oral bacteria can spread to the pancreas through blood circulation and biliary conduction . 8%, and the presence of Fusobacterium was independently associated with poor prognosis of PC ( value < 0.05), suggesting that Fusobacterium may be a novel biomarker for predicting the prognosis of PC . The case-control studies also support our above inference [36, 50]. Taken together, adhesion of the exogenous virulence factor FadA of the Fusobacterium periodonticum to host epithelial cells is most likely one of the molecular mechanisms which lead to PC.

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Although the pathway we found in the current study is predicted based on the 16S sequence, which is not completely true, it can provide some clues for exploring the functions of these bacteria in the carcinogenicity and development of pancreatic cancer. In the pathway enrichment outcomes, totally fifty-two KEGG pathways were apparently different between the research groups ( value < 0.05). Eight KEGG pathways shown in Figure 3(a) were commonly changed in the PC and BPD groups compared to the HC group. It is meaningful that four pathways were related to glucose metabolism, which contains N-glycan biosynthesis, the synthesis of N-glycan biosynthesis, various types of N-glycan biosynthesis, lipopolysaccharide biosynthesis, and peptidoglycan biosynthesis. For example, diabetes usually presented as a complication of chronic pancreatitis . The occurrence and development of tumors are frequently accompanied by the changes of glycosylated proteins, and actually that there are significant changes in carbohydrate chains on the specific proteins of PC cell . The predictive model based on N-glycan is also proved as an effective method for the diagnosis of PC . 9 (carbohydrate antigen 19.9) synergizes with oncogene to promote the growth of PC . In addition, among the forty specifically changed KEGG pathways in PC, eight pathways were upregulated and thirty-two pathways were downregulated. Generally speaking, the cell signaling pathway usually plays an important role in inflammation, immunity, cell proliferation, differentiation, and survival. The perturbation of the NOD-like receptor signaling pathway was confirmed to be significantly associated with PC , and this pathway also showed noticeable upregulation in our PC group. As bacteria cause the occurrence or growth of cancer by inducing an inflammatory microenvironment, the inflammatory factor in turn leads to cell proliferation, mutations, and oncogene activation . Therefore, the alterations of oral bacteria ent of PC through the natural bacterial antibacterial signaling pathway.

The changes in bacteria composition usually accompany the alterations of biological functions. We predicted the corresponding gene functions and metabolic pathways based on the 16S rDNA high-throughput sequencing results via the PICRUSt toolkit. Among the predicted results, five COG functions showed significant association with PC ( value < 0.05). As for RNA processing and modification, the existing study has proved that the RNA modification of the METTL3 gene (m6A) promotes the development of PC and antichemotherapy/antiradiation therapy . To intracellular trafficking, secretion, and vesicular transport, it is obvious that the secretion of insulin from pancreatic ? cell is the vital function of the pancreas, and insulin dysregulation is a risk factor for pancreatic cancer . With regard to inorganic ion transport and metabolism, the previous study showed us that the growth of malignant pancreatic tumors may be related to the metabolism of inorganic ion copper, which is essential to participate in the redox process in cells, and it is also a catalytic cofactor for various enzymes in organisms . All of these reflected the specific association of PC and the above-mentioned biological functions.


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