The inflammatory process is a complex series of tightly controlled cellular and biochemical events initiated by the immune system, which has evolved to eliminate or contain infectious agents and to repair damaged tissue. Apoptosis is essential for the clearance of potentially injurious inflammatory cells, such as neutrophils, eosinophils, and basophils, and the subsequent efficient resolution of inflammation. In this review, we aim to cover key features of the granulocyte life-cycle ranging from their differentiation within the bone marrow to their maturation and ultimate clearance, with a focus on granulocyte apoptosis and macrophage efferocytosis. We further aim to discuss current and emerging models of inflammation and suggest novel ways of terminating or resolving deleterious inflammatory responses with a specific view to the translation of these strategies into fully realized, pro-resolution therapies.
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http://dx.doi.org/10.1111/j.1600-065X.2010.00922.x | DOI Listing |
J Intensive Care
January 2025
Department of Anesthesiology, Critical Care, and Surgery, Duke University School of Medicine, Durham, NC, USA.
The incidence of heat-related illnesses and heatstroke continues to rise amidst global warming. Hyperthermia triggers inflammation, coagulation, and progressive multiorgan dysfunction, and, at levels above 40 °C, can even lead to cell death. Blood cells, particularly granulocytes and platelets, are highly sensitive to heat, which promotes proinflammatory and procoagulant changes.
View Article and Find Full Text PDFBMC Immunol
January 2025
Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungnam National University School of Medicine, Chungnam National University Hospital, 282 Munhwa-Ro, Jung-Gu, Daejeon, 35015, Republic of Korea.
Background: Interleukin-6 (IL-6) plays a central role in sepsis-induced cytokine storm involving immune hyperactivation and early neutrophil activation. Programmed death protein-1 (PD-1) is associated with sepsis-induced immunosuppression and lymphocyte apoptosis. However, the effects of simultaneous blockade of IL-6 and PD-1 in a murine sepsis model are not well understood.
View Article and Find Full Text PDFInflamm Res
January 2025
Department of Anesthesiology, Critical Care, and Surgery, Duke University School of Medicine, Durham, NC, USA.
Background: Mitochondria generate the adenosine triphosphate (ATP) necessary for eukaryotic cells, serving as their primary energy suppliers, and contribute to host defense by producing reactive oxygen species. In many critical illnesses, including sepsis, major trauma, and heatstroke, the vicious cycle between activated coagulation and inflammation results in tissue hypoxia-induced mitochondrial dysfunction, and impaired mitochondrial function contributes to thromboinflammation and cell death.
Methods: A computer-based online search was performed using the PubMed and Web of Science databases for published articles concerning sepsis, trauma, critical illnesses, cell death, mitochondria, inflammation, coagulopathy, and organ dysfunction.
Int J Nanomedicine
January 2025
Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, People's Republic of China.
Introduction: Acute respiratory distress syndrome (ARDS) is a life-threatening type of acute lung injury (ALI) characterized by elevated mortality rates and long-term effects. To date, no pharmacological treatment has proven effective for ARDS. Mesenchymal stem cell-derived apoptotic vesicles (apoVs) were recently found to have excellent therapeutic potential for inflammatory diseases.
View Article and Find Full Text PDFMolecules
December 2024
Faculty of Medicine Foča, University of East Sarajevo, Studentska 5, 73 300 Foča, Bosnia and Herzegovina.
Dapsone is a sulfone used in treating inflammatory skin conditions. Despite its widespread dermatological use, the pharmacological actions of dapsone remain poorly understood. Here, we examined how different aspects of neutrophil functions are affected by dapsone.
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