Objective: The aim of this study was to evaluate monocyte subtypes and the chemokine receptors, comparing individuals with and without Chronic Venous Insufficiency (CVI).
Method: The authors included patients undergoing surgery for varicose veins of the lower limbs (Classification of Venous Disorders - CEAP: C1‒C3).
Results: There were increased levels of classical and non-classical monocytes in the case group and a reduction in intermediate monocytes. Besides, there was higher expression of CCR5 in the non-classical monocytes and lower expression of CX3CR1 in the classical monocytes in the case group.
Conclusions: The inflammatory process present in patients with CVI can modulate the monocyte phenotype and the expression of the chemokine receptors at the protein level.
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http://dx.doi.org/10.1016/j.clinsp.2025.100595 | DOI Listing |
J Immunol
January 2025
Department of Biological Sciences, California State University San Marcos, San Marcos, CA, United States.
Obesity is associated with comorbidities including type 2 diabetes, chronic nonhealing wounds, and psoriasis. Normally, skin homeostasis and repair is regulated through the production of cytokines and growth factors derived from skin-resident cells including epidermal γδ T cells. However, epidermal γδ T cells exhibit reduced proliferation and defective growth factor and cytokine production during obesity and type 2 diabetes.
View Article and Find Full Text PDFJ Exp Med
June 2025
Department of Pathology, New York University Grossman School of Medicine, New York, NY, USA.
Leukemia-driving mutations are thought to arise in hematopoietic stem cells (HSC), yet the natural history of their spread is poorly understood. We genetically induced mutations within endogenous murine HSC and traced them in unmanipulated animals. In contrast to mutations associated with clonal hematopoiesis (such as Tet2 deletion), the leukemogenic KrasG12D mutation dramatically accelerated HSC contribution to all hematopoietic lineages.
View Article and Find Full Text PDFCells
March 2025
Faculté de Pharmacie, Université de Montréal, Montréal, QC H3C 3J7, Canada.
Macrophage mitochondrial dysfunction, caused by oxidative stress, has been proposed as an essential event in the progression of chronic inflammation diseases, such as atherosclerosis. The cluster of differentiation-36 (CD36) and lectin-like oxLDL receptor-1 (LOX-1) scavenger receptors mediate macrophage uptake of oxidized low-density lipoprotein (oxLDL), which contributes to mitochondrial dysfunction by sustained production of mitochondrial reactive oxygen species (mtROS), as well as membrane depolarization. In the present study, the antioxidant mechanisms of action of the selective synthetic azapeptide CD36 ligand MPE-298 have been revealed.
View Article and Find Full Text PDFFront Immunol
March 2025
Department of Neurology, Yale University School of Medicine, New Haven, CT, United States.
Background: Trafficking of immune cells to the central nervous system is hypothesized to facilitate HIV entry and immune-induced neuronal injury and is mediated by surface proteins such as chemokine receptors and α4 integrin. We longitudinally assessed immune cell activation and surface marker expression in cerebrospinal fluid (CSF) and blood and their relationship with CSF HIV RNA beginning during primary HIV infection (PHI) before and after antiretroviral therapy (ART).
Methods: Longitudinal paired blood and CSF were obtained in ART-naïve PHI (<12 month since infection) participants; some independently initiated ART during follow up.
Diabetes Metab J
March 2025
R&D, Dompé Farmaceutici SpA, L'Aquila, Italy.
Background: The CXC motif chemokine ligand 8 (CXCL8)-CXC motif chemokine receptor 1/2 (CXCR1/2) axis has been implicated in type 1 diabetes mellitus (T1DM). Its actions on non-immune cells may also contribute to T1DM-associated complications, including painful diabetic peripheral neuropathy (DPN) and diabetic retinopathy (DR).
Methods: We assessed the efficacy of early (4-8 weeks) or late (8-12 weeks) daily ladarixin (LDX) for the treatment of streptozotocin (STZ)-induced T1DM and the related complications of DPN or DR in male rats.
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