Senescence-related Genes
Senescence-related Genes - Related Videos
09:18
A Sensitive Method to Quantify Senescent Cancer Cells
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Cited by 39 •
2013
Whether senescence prevents or promotes tumorigenesis remains controversial. Since chemotherapeutical drugs can induce cancer cells to senesce, studying senescence is essential for proposing new therapies. However, the standard and broadly used β-galactosidase assay presents major drawbacks. We propose here a rapid and sensitive flow cytometry-based assay to quantify senescence.
06:51
Techniques to Induce and Quantify Cellular Senescence
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Cited by 180 •
2017
Cellular senescence, the irreversible state of cell-cycle arrest, can be induced by various cellular stresses. Here, we describe protocols to induce cellular senescence and methods to assess markers of senescence.
12:08
Telomere Length and Telomerase Activity; A Yin and Yang of Cell Senescence
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Cited by 29 •
2013
An accurate, short, sophisticated and cheap method is described that assesses telomere length in multiple tissues and species using qRT-PCR. In addition, we will describe a simple assay to assess telomerase activity as a complementary backbone test for telomere length.
09:14
Evaluation of Injury-induced Senescence and In Vivo Reprogramming in the Skeletal Muscle
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Cited by 14 •
2017
Here we present a detailed protocol to detect both senescent and pluripotent stem cells in the skeletal muscle upon injury while inducing in vivo reprogramming. This method is suitable for evaluating the role of cellular senescence during tissue regeneration and reprogramming in vivo.
09:38
Multiplexed Immunofluorescence Assay for Spatial Assessment of Senescence Markers in vivo
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2026
Multiplexed immunofluorescence enables sequential labeling of multiple antibody markers within a single tissue section to support spatial analysis of tissue architecture and cell populations. Here, a workflow for multiplex detection of senescence-associated, structural, and immune markers is presented, including manual and automated slide preparation, iterative imaging, and single-cell analysis using digital pathology software.
FAQs
Two major signaling routes highlighted for senescence-related genes are the p53-p21 and p16-RB pathways. Cellular stressors such as DNA damage can activate these pathways, which then suppress cell-cycle progression through distinct regulatory components. Examining both routes helps researchers determine how damaged cells are restrained and how senescence-related signaling contributes to tissue protection or dysfunction.
DNA damage matters because it can serve as a trigger that shifts a cell away from continued proliferation. Senescence-related genes participate in the response by activating signaling that enforces cell-cycle suppression, limiting expansion of cells carrying damage. This mechanism is biologically important because it can reduce the proliferation of damaged cells, while prolonged activation may alter tissue function.
Some senescence-related genes also influence the senescence-associated secretory phenotype, or SASP, in which senescent cells release inflammatory factors. The secretory response adds an important layer beyond cell-cycle arrest: it can affect surrounding tissue and help explain how persistent senescent cells contribute to chronic inflammation. Measuring this output therefore provides context for interpreting gene activity.
Their effects depend on whether the response remains controlled or becomes persistent. By limiting proliferation of damaged cells, senescence-related pathways can support tissue integrity and repair. However, persistent senescent cells and their inflammatory activity may contribute to chronic inflammation and age-related dysfunction. This balance makes the same regulatory system relevant to both biological protection and disease-related change.
A study can connect cellular stress, p53-p21 and p16-RB signaling, cell-cycle progression, and inflammatory secretion. Interpreting these features together is more informative than considering a single gene or pathway in isolation, because senescence-related biology spans growth arrest, secretory behavior, tissue effects, and persistence. This integrated view helps relate molecular signaling to broader cellular and tissue outcomes.
These genes are studied in cancer, aging, regenerative biology, and disease because each context raises different questions about growth control, tissue maintenance, or dysfunction. In cancer research, attention includes limiting proliferation of damaged cells. In aging and disease, persistent senescent cells and inflammation are central concerns, while regenerative biology connects these pathways to tissue repair.
Therapeutic research can use these genes and their pathways to examine how senescent cells arise, persist, or influence surrounding tissue. The goal is not simply to induce cell-cycle arrest, since that response can be protective or harmful depending on context. Instead, pathway knowledge supports investigation of potential senescence-targeting strategies for disease and age-related dysfunction.