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Tumor-associated macrophages (TAMs) are an important component of the tumor microenvironment (TME) and the most abundant population of immune cells infiltrating a tumor. TAMs can largely determine direction of anti-tumor immune response by promoting it or, conversely, contribute to formation of an immunosuppressive TME that allows tumors to evade immune control. Through interactions with tumor cells or other cells in the microenvironment and, as a result of action of anti-cancer therapy, macrophages can enter senescence. In this review, we have attempted to summarize information available in the literature on the role of senescent macrophages in tumors. With the recent development of senolytic therapeutic strategies aimed at removing senescent cells from an organism, it seems important to discuss functions of the senescent macrophages and potential role of the senolytic drugs in reprogramming TAMs to enhance anti-tumor immune response and improve efficacy of cancer treatment.
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http://dx.doi.org/10.1134/S0006297924050055 | DOI Listing |
JCI Insight
September 2025
Diabetes & Metabolism Research Center, University of Utah, Salt Lake City, United States of America.
Impaired muscle regrowth in aging is underpinned by reduced pro-inflammatory macrophage function and subsequently impaired muscle cellular remodeling. Macrophage phenotype is metabolically controlled through TCA intermediate accumulation and activation of HIF1A. We hypothesized that transient hypoxia following disuse in old mice would enhance macrophage metabolic inflammatory function thereby improving muscle cellular remodeling and recovery.
View Article and Find Full Text PDFAllergol Immunopathol (Madr)
September 2025
Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon, Republic of Korea;
Thunberg is a perennial herbaceous plant of the genus that belongs to the Apiaceae family and is effective in improving inflammation, gout, and dizziness. However, the skin pruritus improvement effect and mechanism of action of Thunberg root extract (PJRE) have not yet been reported. We investigated the effects of PJRE on the regulation of pruritus and inflammatory responses in compound 48/80 (C48/80)-treated mice, phorbol 12-myristate 13-acetate (PMA)/A23187-induced human skin mast cells, and LPS-stimulated mouse macrophages.
View Article and Find Full Text PDFJ Extracell Vesicles
September 2025
Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China.
Osteoarthritis (OA), the prevalent debilitating joint disorder, is accelerated by dysregulated intercellular crosstalk, yet the role of fibroblast-like synoviocyte (FLS)-derived extracellular vesicles and particles (EVPs) in disease progression remains to be elucidated. Here, integrative analysis of clinical specimens, animal models, and publicly available datasets revealed significant alterations in exosomal pathways within OA synovium. Proteomic profiling revealed distinct molecular signatures in EVPs derived from inflammatory and senescent FLSs, reflecting the pathophysiological status of their parent cells.
View Article and Find Full Text PDFJ Orthop Translat
November 2025
Key Laboratory of Tropical Translational Medicine of Ministry of Education & Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province, Hainan Provincial Stem Cell Research Institute, School of Basic Medicine and Life Sciences, Hainan Medical University,
Unlabelled: Osteoarthritis (OA) is characterized by the inability of stable and complex joint structures to function as they did, accompanied by inflammation, tissue changes, chronic pain, and neuropathic inflammation. In the past, the primary focus on the causes of joint dysfunction has been on mechanical stress leading to cartilage wear. Further researches emphasize the aging of cartilage and subchondral bone triggered cartilage lesion and osteophyte formation.
View Article and Find Full Text PDFFront Biosci (Landmark Ed)
August 2025
Division of Biochemistry and Molecular Biology, Siberian State Medical University, Ministry of Health of the Russian Federation, 634050 Tomsk, Russia.
Background: Sarcopenia is a complex, multifactorial condition characterized by progressive loss of muscle mass, strength, and function. Despite growing awareness, the early diagnosis and pathophysiological characterization of this condition remain challenging due to the lack of integrative biomarkers.
Objective: This study aimed to conduct a comprehensive multilevel profiling of clinical parameters, immune cell phenotypes, extracellular vesicle (EV) signatures, and biochemical markers to elucidate biological gradients associated with different stages of sarcopenia.