Juha B Näpänkangas

Learn More
Cancer cell budding at the invasive margin has been associated with poor prognosis in rectal cancer. beta-Catenin is an adhesion protein involved in the nuclear Wnt/beta-catenin pathway, and mesenchymal transition of colorectal cancer cells. Hence, we investigated the relationship between cancer cell budding at the invasive margin, beta-catenin expression,(More)
BACKGROUND Active involvement of extracellular matrix (ECM) and its composition regulating factors may have a central role in the pathogenesis of calcific aortic valve disease (CAVD). Thrombospondins (TSPs) are highly conserved matricellular proteins regulating inflammation, angiogenesis and ECM remodeling. These processes are strongly associated with(More)
Calcific aortic valve disease (CAVD) is a progressive pathological condition with no effective pharmacological therapy. To identify novel molecular pathways as potential targets for pharmacotherapy, we studied microRNA (miRNA) profiles of heavily stenotic aortic valves (AS). One of the most upregulated miRNAs in AS valves compared to control valves was(More)
The use of molecular markers in the diagnostics of gliomas aids histopathological diagnosis and allows their further classification into clinically significant subgroups. The aim of this study was to characterize the methylation pattern of the O(6) -methylguanine-DNA methyltransferase (MGMT) promoter, gene copy number aberrations, and isocitrate(More)
BACKGROUND Activation of the renin-angiotensin-system (RAS) plays a key pathophysiological role in heart failure in patients with hypertension and myocardial infarction. However, the function of (pro)renin receptor ((P)RR) is not yet solved. We determined here the direct functional and structural effects of (P)RR in the heart. METHODOLOGY/PRINCIPAL(More)
BACKGROUND Inflammation contributes to the pathogenesis of colorectal cancer (CRC), and cytokine levels are altered during colorectal carcinogenesis. METHODS The serum levels of 13 cytokines and their relation to clinical and pathological parameters, and systemic inflammatory response (mGPS, CRP and neutrophil-lymphocyte ratio), were analysed from a(More)
BACKGROUND AND AIM OF THE STUDY Aortic valve stenosis (AS) is an actively regulated pathobiological process that shows some hallmarks of atherosclerosis. Apelin and its receptor, APJ, are highly expressed in the heart, and the proposed effects of the apelin-APJ system are opposite to those of the angiotensin II-AT1-receptor pathway. The role of the(More)
AIMS Aortic valve stenosis (AS) is an actively regulated process like atherosclerosis, which is accompanied by changes e.g. in endothelin-related genes. However, the role of endothelin peptides in AS is unknown. METHODS AND RESULTS We characterized the expression of the endothelin system in aortic valves of patients with normal valves (n = 12),(More)
AIMS Aortic valve calcification is an actively regulated process with endothelial dysfunction displaying hallmarks of atherosclerosis. C-type natriuretic peptide (CNP) system has been reported to have a role in the pathogenesis of vascular atherosclerosis and to be distinctly downregulated in aortic valve stenosis (AS). Here we studied gene expressions of(More)
The phosphatase and actin regulator 1 (PHACTR1) locus is a very commonly identified hit in genome-wide association studies investigating coronary artery disease and myocardial infarction (MI). However, the function of PHACTR1 in the heart is still unknown. We characterized the mechanisms regulating Phactr1 expression in the heart, used adenoviral gene(More)