The application of immunohistological methods provides an invaluable contribution in revealing the protein colocalization, which may reflect the occurrence of molecular interaction processes.This chapter describes comprehensive protocols for detection of S100A7/JAB1 colocalization by immunohistochemistry in archival formalin-fixed and paraffin-embedded skin biopsies from healthy and psoriatic subjects. In addition, we provide a protocol for immunocytochemical detection of S100A7/JAB1 colocalization in S100A7 CRISPR-activated human keratinocyte cell line.
View Article and Find Full Text PDFPsoriasis, an inflammatory autoimmune skin disease, is the result of a chronic interaction between hyperproliferative keratinocytes and infiltrating activated immune cells. The mechanisms underlying psoriasis pathogenesis remain largely unknown, although a combination of genetic and environmental factors plays an important role in its development. S100A7 is overexpressed in psoriasis, and there is growing evidence that S100A7 may be involved in the pathogenesis of psoriasis.
View Article and Find Full Text PDFPsoriasis, a chronic immune-mediated inflammatory skin disease, is characterized by dysregulated keratinocyte proliferation. The EF-hand calcium binding protein S100A7 has been found to be overexpressed in psoriatic keratinocytes. It is know that S100A7 may interact with Jab1, a cofactor that stabilizes c-Jun.
View Article and Find Full Text PDFSystemic sclerosis (SSc), an autoimmune disorder, is characterized by vasculopathy, inflammation, progressive perivascular and interstitial fibrosis. Its pathogenesis is largely unknown, however strong evidences suggest that genetic predisposition may contribute to SSc development. Several gene polymorphisms involved in regulatory T cell function have been identified in many autoimmune diseases, including SSc.
View Article and Find Full Text PDFAutoimmune diseases often share common susceptibility genes. Most genetic variants associated with susceptibility to systemic lupus erythematosus are also associated with other autoimmune diseases. The X-linked variant rs2294020 is positioned in exon 7 of the CCDC22 gene.
View Article and Find Full Text PDFObesity, type 1 diabetes, and psoriasis are wide-ranging health problems. Genetics, epigenetics, and environmental factors together with immune disturbances are involved in these diseases. The white adipose tissue is an active endocrine organ, secreting a wide variety of soluble mediators called adipokines that have a central role in the relationship between adipose tissue and immune system.
View Article and Find Full Text PDFmiRNAs are short non-coding RNAs that play a key role in the homeostasis and in the onset of many diseases. Different studies on nephropathies have identified miRNAs that are differentially expressed in nephropathic subjects compared to healthy controls. An important goal of these studies is to give the nephrologist the possibility to diagnose different nephropathies based on liquid biopsies that are less invasive for the patient than solid ones.
View Article and Find Full Text PDFS100A7 (psoriasin), an EF-hand type calcium binding protein localized in epithelial cells, regulates cell proliferation and differentiation. An S100A7 overexpression may occur in response to inflammatory stimuli, such in psoriasis, a chronic inflammatory autoimmune-mediated skin disease. Increasing evidence suggests that S100A7 plays critical roles in amplifying the inflammatory process in psoriatic skin, perpetuating the disease phenotype.
View Article and Find Full Text PDFClinical genetics plays a central role in the diagnostic practice, mainly due to both the hereditary and non-hereditary genetic component, which characterizes most of the diseases. This branch of medicine has been characterized by a rapid technological growth since 2003, when the entire human genome was sequenced. We need to consider the reduction in terms of both time and costs that the gene sequencing has gone through.
View Article and Find Full Text PDFPsoriasis is a chronic inflammatory skin disease, characterized by hyperproliferation of keratinocytes and by skin infiltration of activated T cells. To date, the pathophysiology of psoriasis has not yet been fully elucidated. The Notch pathway plays a determinant role in cell fate determination, proliferation, differentiation, immune cell development and function.
View Article and Find Full Text PDFBackground: Psoriasis is a chronic inflammatory skin disease. It is characterized by immune cell activation and altered epidermal differentiation. S100A7 (psoriasin) is overexpressed in psoriasis, suggesting a determinant role of this protein in inflammation and keratinocyte differentiation.
View Article and Find Full Text PDFBackground: Tourette Syndrome (TS) is a highly prevalent childhood neuropsychiatric disorder (about 1 %), characterized by multiple motor and one or more vocal tics. The syndrome is commonly associated to comorbid conditions (e.g.
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