Leucocyte adhesion deficiency type I (LAD I) is a rare autosomal recessive disorder of leucocyte function, characterized by delayed separation of the umblical cord, recurrent bacterial and fungal infections, defective wound healing and impressive constant blood neutrophilia. The authors report a child with genetic diagnosis of leucocyte adhesion deficiency (LAD) type I, who succumbed to his illness and developed amyloidosis preterminally. To the best of author's knowledge this is the first case of leucocyte adhesion deficiency type I associated with amyloidosis among the human LAD cases worldwide.
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http://dx.doi.org/10.1007/s12098-011-0417-x | DOI Listing |
Inflammation
January 2025
Department of Dermatology, The University of Hong Kong-Shenzhen Hospital, Guangdong Province, Shenzhen, People's Republic of China.
Erythrodermic psoriasis (EP) is a life-threatening variant of psoriasis. In this study, we contrasted the vascular endothelial cells (ECs) in EP lesions against those in psoriasis vulgaris and healthy controls. Utilizing single-cell RNA sequencing, immunofluorescence, and flow cytometry on human and mouse samples, we observed a marked increase and activation of EP ECs, which upregulated genes relative to angiogenesis, leukocyte adhesion and antigen presentation.
View Article and Find Full Text PDFCell Commun Signal
January 2025
Department of Immunology, University of Connecticut School of Medicine, Connecticut, Farmington, 06030, USA.
Background: Neutrophils are the most abundant leukocytes in human blood, and their recruitment is essential for innate immunity and inflammatory responses. The initial and critical step of neutrophil recruitment is their adhesion to vascular endothelium, which depends on G protein-coupled receptor (GPCR) triggered integrin inside-out signaling that induces β2 integrin activation and clustering on neutrophils. Kindlin-3 and talin-1 are essential regulators for the inside-out signaling induced β2 integrin activation.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 1416753955, Iran.
Despite the unique properties of clay nanocomposites for cardiovascular applications, there are few data on the hemocompatibility of these nanomaterials. This study represents the first comprehensive investigation of the hemo/biocompatibility of clay nanocomposites . Nanocomposite coatings of polylactic acid (PLA)-polyethylene glycol (3 wt %)-Cloisite20A nanoclay (3 wt %) were produced using electrospraying technique as potential drug-eluting stent (DES) coatings.
View Article and Find Full Text PDFCytokine
January 2025
Department of Nutrition and Dietetics, Faculty of Health Sciences, Gazi University, Ankara 06490, Türkiye.
Endogenous and exogenous factors play a role in endothelial dysfunction. Inflammation, leukocyte adhesion-aggregation, abnormal vascular proliferation, atherosclerosis, and hypertension are among the endogenous factors. Another factor that affects endothelial dysfunction is exogenous factors such as drug treatments, smoking, alcohol, and nutrition.
View Article and Find Full Text PDFImmunol Rev
December 2024
Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Innate immune cells perform vital tasks in detecting, seeking, and eliminating invading pathogens, thus ensuring host survival. However, loss of function of these cells or their overactive response to tissue injury often causes serious ailments. It is, therefore, crucial to understand at a basic level how these cells function in health and disease.
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