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Aging is a physiological decline in both structural homeostasis and functional integrity, progressively affecting organismal health. A major hallmark of aging is the accumulation of senescent cells, which have entered a state of irreversible cell cycle arrest after experiencing inherent or environmental stresses. Although cellular senescence is essential in several physiological events, it plays a detrimental role in a large array of age-related pathologies. Recent biomedical advances in specifically targeting senescent cells to improve healthy aging, or alternatively, postpone natural aging and age-related diseases, a strategy termed senotherapy, have attracted substantial interest in both scientific and medical communities. Challenges for aging research are highlighted and potential avenues that can be leveraged for therapeutic interventions to control aging and age-related disorders in the current era of precision medicine.
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http://dx.doi.org/10.1002/advs.202002611 | DOI Listing |
J Cosmet Dermatol
September 2025
Laboratoires VIVACY, France.
Background: Superficial injection of hyaluronic acid (HA)-based gels is a widely used method to restore skin quality and achieve a more youthful appearance. While the clinical benefits of such procedures are well established, their biological mechanisms of action remain poorly understood.
Objective: This study aimed to evaluate the effectiveness of two cross-linked HA gels (IPN-12.
Liver Int
October 2025
GastroZentrum Hirslanden, Digestive Disease Center, Zürich, Switzerland.
Background And Aims: Cholangiopathies, including primary sclerosing cholangitis (PSC), primary biliary cholangitis (PBC), and post-COVID-19 cholangiopathy (PCC), involve chronic cholangiocyte injury, senescence, epithelial-stromal crosstalk, and progressive fibrosis. However, effective in vitro models to capture these interactions are limited. Here, we present a scaffold-free 3D multilineage spheroid model, composed of hepatocyte-like cells (HepG2), cholangiocytes (H69), and hepatic stellate cells (LX-2), designed to recapitulate early fibrogenic responses driven by senescent cholangiocytes.
View Article and Find Full Text PDFJ Orthop Res
September 2025
Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany.
Osteoporotic hip fractures are a considerable cause of pain and disability particularly among the elderly. Osteoporosis causes loss of bone stability, which in turn leads to an increased risk of fractures especially in metaphyseal bone. Moreover, the body's capacity for healing is diminished, resulting in prolonged recovery times following these fractures.
View Article and Find Full Text PDFNat Aging
September 2025
Department of Neurology, Mental and Neurological Disease Research Center, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
Aging is a major risk factor for various neurological disorders, including Alzheimer's disease, and is associated with the accumulation of senescent cells, which can themselves propagate the senescence process through paracrine signaling. Migrasomes are organelles that form during cellular migration, detach from parent cells and mediate intercellular communication. Here we demonstrate that border-associated macrophages (BAMs) acquire senescence-associated properties during early brain aging, possibly due to prolonged exposure to amyloid beta.
View Article and Find Full Text PDFNature
September 2025
Department of Translational Genomics, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
Small cell lung cancer (SCLC) is a highly aggressive type of lung cancer, characterized by rapid proliferation, early metastatic spread, frequent early relapse and a high mortality rate. Recent evidence has suggested that innervation has an important role in the development and progression of several types of cancer. Cancer-to-neuron synapses have been reported in gliomas, but whether peripheral tumours can form such structures is unknown.
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