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Enterococcus faecalis strain:person suffered from root canal infection | isolate:person suffered from root canal infection

ABSTRACT: Enterococcus faecalis strain:person suffered from root canal infection | isolate:person suffered from root canal infection Genome sequencing

PROVIDER: PRJNA662083 | ENA |

REPOSITORIES: ENA

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Anal Canal Cancer : subclassification

Project description:Etiologically linked to HPV infection, malignancies of the anal canal have substantially increased in incidence over the last 20 years. Although most anal squamous cell carcinomas (SCC) respond well to chemoradiotherapy, for undetermined reasons, a subgroup of patients experience a poor outcome. Despite cumulative efforts for discovering independent predictors for overall survival, both nodal status and tumor size are still the only reliable factors predicting patient outcome. In the present study, we correlated both proteomic signatures and clinicopathological features of neoplastic lesions arising from two distinct portions of the anal canal: the lower part (squamous zone) and the more proximal anal transitional zone. Although microdissected cancer cells appeared indistinguishable by morphology (squamous phenotype), unsupervised clustering analysis of the whole proteome significantly highlighted the heterogeneity that exists within anal canal tumors. More importantly, two region-specific subtypes of SCC were revealed. The expression profile (sensitivity/specificity) of several selected biomarkers (keratin filaments) further confirmed the subclassification of anal (pre)cancers based on their cellular origin. Less commonly detected compared to their counterparts located in the squamous mucosa, SCC originating in the transitional zone displayed more frequently a poor or basaloid differentiation and were significantly correlated with reduced disease-free and overall survivals. Taken together, we present for the first time direct evidence that anal canal SCC comprises two distinct entities with different cells of origin, proteomic signatures and survival rates. This study forms the basis for a novel dualistic classification of anal carcinoma with implications for management, outcome expectations and possibly therapeutic approaches.

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Gene expression profile in external auditory canal squamous cell carcinoma

Project description:External auditory canal squamous cell carcinoma (EACC) is very rare, only accounting for two thousandth of the head and neck cancer. However, the development mechanism of EACC remains unknown. By using gene expression microarray analysis, we aimed to find differentially expressed genes involved in ESCC development. We identified a wide spectrum of molecular signatures in EACC, including mRNA and lncRNA. The present study systematically analyzed the expression of mRNA and lncRNA in squamous cell carcinoma of the external auditory canal and normal external auditory canal tissues. We detect the transcriptomic changes between squamous cell carcinoma of the external auditory canal and normal external auditory canal tissues to identify potential tumor biomarkers in squamous cell carcinoma of the external auditory canal.

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Single-cell technology reveals the heterogeneity of adipose tissue in human spinal canal

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Transcriptional reprogramming by root knot and migratory nematode infection in rice

Project description:In this study a comparison was made between the local transcriptional changes at two time points upon root knot (Meloidogyne graminicola) and migratory nematode (Hirschmanniella oryzae) infection in rice. Using mRNA-Seq we have characterized specific and general responses of the root challenged with these endoparastic root nematodes with very different modes of action. Root knot nematodes induce major developmental reprogramming of the root tip, where they force the cortical cells to form multinucleate giant cells, resulting in gall-development. Our results show that root knot nematodes force the plant to produce and transfer nutrients, like sugars and amino acids, to this tissue. Migratory nematodes, on the other hand, induce the expression of proteins involved in plant death and oxidative stress, and obstruct the normal metabolic activity of the root. While migratory nematode infection also causes upregulation of biotic stress-related genes early in the infection, the root knot nematodes seem to actively suppress the local defence of the plant root. This is exemplified by a downregulation of genes involved in the salicylic acid and ethylene pathways. Interestingly, hormone pathways usually involved in plant development, were strongly induced (auxin and gibberellin) or repressed (cytokinin) in the galls. In addition, thousands of novel transcriptionally active regions as well as highly expressed nematode transcripts were detected in the infected root tissues. These results uncover previously unrecognized nematode-specific expression profiles and provide an interesting starting point to study the physiological function of many yet unannotated transcripts potentially targeted by these nematodes.

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