Extracellular matrix turnover in severe COVID-19 is reduced by corticosteroids.

Background: Severe and critical COVID-19 is characterized by pulmonary viral infection with SARS-CoV-2 resulting in local and systemic inflammation. Dexamethasone (DEX) has been shown to improve outcomes in critically ill patients; however, its effect on tissue remodeling, particularly collagen turnover, remains unclear. This study investigated the association between circulating extracellular matrix (ECM) remodeling neo-epitopes and COVID-19 severity, their relationship with mortality, and the effect of DEX on these markers.

Vitronectin regulates lung tissue remodeling and emphysema in chronic obstructive pulmonary disease.

Vitronectin (VTN) is an important extracellular matrix protein in tissue remodeling, but its role in COPD is unknown. We show that VTN regulates tissue remodeling through urokinase plasminogen activator (uPA) signaling pathway in COPD. In human COPD airways and bronchoepithelial cells and the airways of mice with cigarette smoke (CS)-induced experimental COPD, VTN protein was not changed, but downstream uPA signaling was altered (increased plasminogen activator inhibitor-1, uPAR) that induced collagen and airway remodeling.

Perspectives on Cervical Cancer Prevention Strategies and a Combination Treatment for Cervical Precancer in South African Women Living with HIV and Male Partners.

Introduction: Cervical cancer remains the second most common cancer among women worldwide, with 85% of cases occurring in low-and middle-income countries (LMIC). Women living with HIV (WLWH) are at a particularly high risk of developing for high-grade cervical intraepithelial neoplasia (CIN2/3) and cervical cancer, and the standard surgical treatment is far less effective in this population. Thus, research on medical therapies and combination treatment options remain a priority.

Small Fibre Pathology in Fibromyalgia: A review.

Fibromyalgia syndrome (FMS) presents a complex and challenging disorder in both the diagnosis and treatment, with emerging evidence suggesting a role of small fibre pathology (SFP) in its pathophysiology. The significance of the role of SFP in FMS remains unclear; however, recent evidence suggests degeneration and dysfunction of the peripheral nervous system, particularly small unmyelinated fibres, which may influence pathophysiology and underlying phenotype. Both skin biopsy and corneal confocal microscopy (CCM) have consistently demonstrated that ~ 50% of people with FMS have SFP.

Global organelle profiling reveals subcellular localization and remodeling at proteome scale.

Defining the subcellular distribution of all human proteins and their remodeling across cellular states remains a central goal in cell biology. Here, we present a high-resolution strategy to map subcellular organization using organelle immunocapture coupled to mass spectrometry. We apply this workflow to a cell-wide collection of membranous and membraneless compartments.