Publications by authors named "S Loffredo"
Article Synopsis
- Neutrophils, the most common type of white blood cells, play a significant role in inflammation and are present in greater levels in patients with psoriatic arthritis (PsA), a chronic disease affecting joints and other body systems.
- A study involving 31 PsA patients and 22 healthy controls investigated the function of neutrophils from blood samples; these neutrophils were tested for various activation and response characteristics.
- Results showed that neutrophils from PsA patients had lower activation and effectiveness when responding to stimuli, along with elevated serum levels of inflammatory markers, suggesting a compromised immune response in these patients.
Introduction: The Janus kinase (JAK) family includes four cytoplasmic tyrosine kinases (JAK1, JAK2, JAK3, and TYK2) constitutively bound to several cytokine receptors. JAKs phosphorylate downstream signal transducers and activators of transcription (STAT). JAK-STAT5 pathways play a critical role in basophil and mast cell activation.
View Article and Find Full Text PDFThe innate immune system, composed of neutrophils, basophils, eosinophils, myeloid-derived suppressor cells (MDSCs), macrophages, dendritic cells (DCs), mast cells (MCs), and innate lymphoid cells (ILCs), is the first line of defense. Growing evidence demonstrates the crucial role of innate immunity in tumor initiation and progression. Several studies support the idea that innate immunity, through the release of pro- and/or anti-inflammatory cytokines and tumor growth factors, plays a significant role in the pathogenesis, progression, and prognosis of cutaneous malignant melanoma (MM).
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- Eosinophils, when activated by the alarmin IL-33, produce extracellular vesicles (EV) that show potential anti-tumor effects, contrasting with those activated by IL-5.
- Incorporating these IL-33-activated eosinophil-derived EV (Eo33-EV) into tumor cells leads to increased expression of genes that promote cell cycle arrest and reduces tumor growth and metastasis.
- RNA sequencing highlights that Eo33-EV are enriched with tumor suppressor genes and pathways that enhance an epithelial phenotype, indicating their potential role in cancer therapy through cell reprogramming.
IBD is an uncontrolled inflammatory condition of the gastrointestinal tract, which mainly manifests in two forms: ulcerative colitis (UC) and Crohn's disease (CD). The pathogenesis of IBD appears to be associated with an abnormal response of innate and adaptive immune cells. Innate immunity cells, such as macrophages, mast cells, and granulocytes, can produce proinflammatory (e.
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