0000000000049683

AUTHOR

Dirk A. Ridder

showing 7 related works from this author

Clinocopathologic correlation of alpha fetoprotein-expression in situ with serum levels in a large cohort of patients with hepatocellular carcinoma

2019

In situCorrelationbusiness.industryHepatocellular carcinomamedicineCancer researchmedicine.diseasebusinessAlpha-fetoproteinLarge cohort35. Jahrestagung der Deutschen Arbeitsgemeinschaft zum Studium der Leber
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Sequential (epi)genetic changes during liver cancer development and progression

2019

Oncologymedicine.medical_specialtybusiness.industryInternal medicineMedicinebusinessLiver cancermedicine.diseaseZeitschrift für Gastroenterologie
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Key Enzymes in Pyrimidine Synthesis, CAD and CPS1, Predict Prognosis in Hepatocellular Carcinoma

2021

Simple Summary Individual patients with liver cancer have a highly variable clinical course. Hence, there is an urgent need to identify new prognostic markers to determine prognosis and select specific therapies. Expression of two key enzymes in pyrimidine synthesis was analyzed in a large, well-characterized cohort of patients with liver cancer. Dysregulated expression of these enzymes was associated with shorter survival of the patients. A combined score of both markers was found to be a statistically independent prognostic marker. Abstract Patients with hepatocellular carcinoma (HCC) have a highly variable clinical course. Therefore, there is an urgent need to identify new prognostic mar…

Cancer ResearchpyrimidineCADlcsh:RC254-282Article03 medical and health sciences0302 clinical medicinecps1medicineHCCchemistry.chemical_classificationTissue microarraybusiness.industryCancerhepatocellular carcinomaHCCSmedicine.diseaselcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensurea cycle dysregulationEnzymeDihydroorotasechemistryOncology030220 oncology & carcinogenesisHepatocellular carcinomaPyrimidine metabolismKey (cryptography)Cancer researchImmunohistochemistryBiomarker (medicine)biomarkercad030211 gastroenterology & hepatologyprognosisbusinessCancers
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TGFβ-activated kinase 1 (TAK1) is activated and predicts prognosis in hepatocellular carcinoma

2020

business.industryKinaseHepatocellular carcinomaCancer researchMedicinebusinessmedicine.diseaseZeitschrift für Gastroenterologie
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HILPDA is upregulated, predicts prognosis and promotes cancer progression in hepatocellular carcinoma

2020

Downregulation and upregulationbusiness.industryHepatocellular carcinomamedicineCancer researchCancermedicine.diseasebusinessZeitschrift für Gastroenterologie
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Epigenetic modifications precede molecular alterations and drive human hepatocarcinogenesis

2021

Development of primary liver cancer is a multistage process. Detailed understanding of sequential epigenetic alterations is largely missing. Here, we performed Infinium Human Methylation 450k BeadChips and RNA-Seq analyses for genome-wide methylome and transcriptome profiling of cirrhotic liver (n = 7), low- (n = 4) and high-grade (n = 9) dysplastic lesions, and early (n = 5) and progressed (n = 3) hepatocellular carcinomas (HCC) synchronously detected in 8 patients with HCC with chronic hepatitis B infection. Integrative analyses of epigenetically driven molecular changes were identified and validated in 2 independent cohorts comprising 887 HCCs. Mitochondrial DNA sequencing was further em…

AdultMaleMitochondrial DNACarcinoma HepatocellularCirrhosisMolecular biologyCarcinogenesisBiologyEpigenesis GeneticHepatitis B ChronicmedicineHumansEpigeneticsAgedHepatologyGene Expression ProfilingLiver NeoplasmsDNA NeoplasmGeneral MedicineMethylationDNA MethylationMiddle AgedHCCSmedicine.diseaseGene Expression Regulation NeoplasticOncologyApoptosisDNA methylationCancer researchEpigeneticsCalmodulin-Binding ProteinsFemaleLiver cancerLiver cancerResearch ArticleJCI Insight
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Endogenous THBD (Thrombomodulin) Mediates Angiogenesis in the Ischemic Brain—Brief Report

2020

Objective: THBD (thrombomodulin) is part of the anticoagulant protein C-system that acts at the endothelium and is involved in anti-inflammatory and barrier-stabilizing processes. A recombinant soluble form of THBD was shown to have protective effects in different organs, but how the endogenous THBD is regulated during ischemia, particularly in the brain is not known to date. The aim of this study was to investigate the role of THBD, especially in brain endothelial cells, during ischemic stroke. Approach and Results: To induce ischemic brain damage, we occluded the middle cerebral artery of mice. We found an increased endothelial expression of Thbd in the peri-infarct area, whereas in the …

Male0301 basic medicineEndotheliumAngiogenesismedicine.drug_classThrombomodulinNeovascularization PhysiologicInflammationEndogeny030204 cardiovascular system & hematologyThrombomodulinlaw.invention03 medical and health sciences0302 clinical medicinelawAnimalsMedicineStrokeCells CulturedMice Knockoutbusiness.industryAnticoagulantBrainEndothelial CellsInfarction Middle Cerebral Arterymedicine.disease3. Good healthMice Inbred C57BLDisease Models Animal030104 developmental biologymedicine.anatomical_structureRecombinant DNACancer researchmedicine.symptomCardiology and Cardiovascular MedicinebusinessSignal TransductionArteriosclerosis, Thrombosis, and Vascular Biology
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