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Samples from prospectively enrolled patients with histologically confirmed primary Head and Neck squamous cell carcinoma (HNSCC) were analyzed for miRNA profiling

ABSTRACT: Samples from prospectively enrolled patients with histologically confirmed primary Head and Neck squamous cell carcinoma (HNSCC) were analyzed for miRNA profiling

PROVIDER: PRJNA894533 | ENA |

REPOSITORIES: ENA

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Samples from prospectively enrolled patients with histologically confirmed primary Head and Neck squamous cell carcinoma (HNSCC) were analyzed for miRNA profiling

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A gene signature in histologically normal surgical margins is predictive of oral carcinoma recurrence

Project description:Samples were prospectively collected from patients with histologically normal surgical resection margins. 96 tissue samples (histologically normal margins, oral carcinoma and adjacent normal tissues) from 24 patients comprised the training set. Our study design was guided by the hypothesis that the expression of genes present in oral squamous cell carcinoma (OSCC) but not in healthy oral tissues would be indicative of recurrence in advance of histological alteration. We used meta-analysis of five published microarray data sets (GEO accession GDS2520, Kuriakose et al. 2004; GDS1584, Toruner et al. 2004; GSE6791, Pyeon et al. 2007; GSE9844, Ye et al. 2008; and GSE10121, Sticht et al. 2008), in conjunction with the current training set, to identify genes reliably over-expressed in OSCC. This reduced gene set was used to train a risk model to predict recurrence based on over-expression of a subset of these genes in histologically normal surgical resection margins. Validation of the risk signature was performed using quantitative real-time reverse-transcription PCR in an independent set of 136 samples from an independent cohort of 30 patients.

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A gene signature in histologically normal surgical margins is predictive of oral carcinoma recurrence

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Project description:Since the discovery of adult neural stem cells, their exact identity is still under discussion. Moreover, the lack of a reproducible procedure to purify neural stem cells prospectively rather than by growing them in vitro has so far precluded their study at the transcriptome level. Here we demonstrate a novel procedure to prospectively isolate neural stem cells from the adult mouse subependymal zone on the basis of their GFAP- and prominin1-expression by fluorescence-activated cell sorting. All self-renewing, multipotent stem cells are contained in this fraction at 70% purity. The stem cell identity of these double-positive cells is further demonstrated in vivo, by using a novel split-Cre-technology for fate mapping. Comparison of the transcriptome of these prospectively isolated neural stem cells to the transcriptomes of other astrocytes or ependymal cells revealed a distinct clustering of the stem cells, highlighting their unique features, as well as profound similarities to the astrocyte as well as ependyma transcriptome.

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Histologically confirmed case of complete atrioventricular block due to hepatocellular carcinoma.

Project description:A 72-year-old man, who had been diagnosed as having hepatocellular carcinoma (HCC) with multiple extrahepatic metastasis, complained a general fatigue which appeared 2 weeks before admission. Because bradycardia was detected on physical examination, ECG was performed which revealed the complete atrioventricular (AV) block. We stopped Ca-blocker and ?-blocker, but the bradycardia persisted. He was admitted to our hospital for an emergent pacemaker implantation. On admission, he complained dyspnoea. After the surgery, he died due to deterioration of heart failure. The autopsy revealed cardiac metastasis of HCC on AV node, so it was suspected that cardiac metastasis caused the AV block. We thought that the cause of his death was the exacerbation of heart failure associated with bradycardia. It was likely that complete AV block as a very rare complication caused by cardiac metastasis of HCC influenced the prognosis of this patient.

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Project description:IgG4-related disease is an immune-mediated disease with manifestations in most organ systems among them the pituitary gland. To date, few cases of histologically confirmed cases of IgG-related hypophysitis have been reported. The aim of this study was to retrospectively determine the prevalence of IgG4-related hypophysitis among cases previously diagnosed as primary hypophysitis (lymphocytic hypophysitis, granulomatous hypophysitis and hypophysitis not otherwise specified). Histological and immunohistochemical analysis revealed that 12 of 29 cases (41.4%) previously diagnosed as primary hypophysitis fulfilled the criteria for IgG4-related disease and, thus, IgG4-related hypophysitis should always be considered in the differential diagnosis of primary hypophysitis. All cases of IgG4-related hypophysitis showed a dense lymphoplasmacytic infiltrate with more than 10 IgG4-positive cells per high power field and a ratio of IgG4/IgG-positive cells of more than 40%, whereas storiform fibrosis was an inconsistent histological feature and was also seen in few cases of non-IgG-related hypophysitis, thus lacking sensitivity and specificity. Obliterative phlebitis was not seen in any case. Thus, histological criteria defined for IgG4-related disease in other organs should be modified for IgG4-related hypophysitis, accordingly.

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