Articles tagged with Telomeres
Researchers at the University of Pittsburgh Cancer Institute discovered that cancer cells exploit a previously unknown mechanism called alternative lengthening of telomeres (ALT) to reset their telomere clocks. This allows them to continue dividing and growing, making them more aggressive and resistant to treatment.
Pitt researchers discovered how oxidative stress accelerates telomere shortening by damaging DNA precursor molecules. This finding offers a new way to inhibit telomerase activity, potentially treating cancer. The study also reveals that oxidative stress can promote telomere lengthening.
A study by researchers at Stanford University School of Medicine found that progressively shortening telomeres in heart muscle cells triggered a DNA damage response compromising mitochondrial function. This led to cardiomyopathy and death in mice with Duchenne muscular dystrophy, suggesting new therapeutic targets.
A study found that mothers with higher BMI before pregnancy have shorter telomeres in their newborns, indicating a link between maternal weight and biological age. This association may increase the risk of chronic diseases in adulthood.
Researchers from Vetmeduni Vienna found that high food availability during the active season in summer contributes to a long life. Telomere length at the end of the experiment was directly correlated with food availability, revealing that a full belly rejuvenates the cells.
Researchers from the University of Pennsylvania have discovered a link between telomeres and the Wnt signaling cascade, which may hold a treatment option for patients with dyskeratosis congenita. Stimulating the Wnt pathway reversed signs of DC-related dysfunction in human tissues.
Cancer cells counteract telomere breakdown by building them up with the enzyme telomerase. A new study using CRISPR gene editing technology reveals telomerase's mechanism, allowing scientists to identify potential targets for anti-cancer drugs.
Researchers have identified the precise point of origin for TERRA RNAs, which protect telomeres and maintain chromosomal stability. The discovery sheds light on the importance of TERRA in cell viability and telomere preservation.
Researchers found that treating patients with a male hormone increased telomere length and improved hemoglobin mass. The study suggests a possible approach to combat diseases caused by telomerase deficiency.
Researchers identified STN1 gene mutations as the cause of Coats plus syndrome, a telomeropathy that affects multiple tissues. The study found that cells with dysfunctional telomeres and decreased capacity to divide were characteristic of patients with Coats plus syndrome.
Patients who underwent bariatric surgery experienced a reversal of premature aging, characterized by longer telomeres and reduced inflammation. Two years after surgery, patients had telomeres that were 80% longer than before the procedure.
A study published in Journal of Clinical Oncology reveals that short remission telomere length is associated with delayed blood count recovery in children with Acute Myeloid Leukemia (AML) after chemotherapy. The research aims to identify high-risk children and develop targeted treatments to prevent complications.
Researchers at UT Southwestern Medical Center have developed a new method to detect telomere length, which can influence cancer progression and aging. The new approach uses non-radioactive probes, increasing sensitivity and stability, and may help slow or stop cancer cell growth.
Research from Lund University reveals that urban great tits have shorter telomeres than their rural counterparts, increasing their risk of dying young. The induced stress in urban environments is believed to be the primary cause of this difference.
Researchers at CNIO have developed a new method to create mice with hyper-long telomeres using epigenetic changes, avoiding genetic manipulation. This technique results in fewer signs of molecular aging and a lower incidence of cancer in the mice.
Research from the University of East Anglia found that inbred birds have shorter lifespans due to telomere shortening. The study analyzed DNA samples from a population of Seychelles warblers, finding that inbreeding affects not only the young but also their mothers' ability to provide for them.
A biologically younger woman demonstrates the world's first successful gene therapy against human aging. Elizabeth Parrish's white blood cells showed a 20-year increase in telomere length, implying a reversal of age-related diseases.
A study published in PLOS ONE found that chronological age was the single best predictor of death in three countries, followed closely by self-reported mobility. Telomere length, previously believed to be a powerful biomarker for aging and mortality, ranked lower than other indicators in predicting mortality.
A research group led by Junko Kanoh found that the Shugoshin protein binds with subtelomeres and maintains proper gene expression. This discovery may lead to a better understanding of mechanisms behind abnormal telomere structure and its relation to multiple malformations and mental retardation.
Scientists discovered that Zscan4 is a repair mechanism triggered by telomere shortening, allowing cells to recover from cell division stress. The protein expression is linked to longer cell cycles, enabling the cells to lengthen their telomeres before speeding up the cycle again.
Researchers at CNIO have developed a gene therapy to repair telomeres, delaying ageing and potentially treating aplastic anaemia. The treatment uses virus-delivered telomerase enzyme to extend telomeres, increasing blood cell production.
Researchers used DREEM to visualize how DNA wraps around TRF2, forming T-loops that protect chromosome ends. The new technique provides insights into telomere maintenance and structure-function relationships.
A study has identified the replication stress response protein SMARCAL1 as a key player in the Alternative Lengthening of Telomeres (ALT) pathway, which is active in approximately 10% of all cancers. This pathway allows cancer cells to maintain telomere length and avoid cell death, making it a potential target for new therapies.
Scientists at The Wistar Institute discovered that p53 can suppress accumulated DNA damage at telomeres, preserving genome integrity. This finding highlights a new benefit of the vital gene p53 in protecting against cancer.
A Simon Fraser University study found that women with more surviving children have longer telomeres, indicative of cellular aging. The research suggests that increased estrogen during pregnancy protects cells against telomere shortening and may slow down the aging process.
Researchers have discovered a new mechanism behind chromothripsis, a phenomenon where cells undergo multiple mutations due to telomere crisis. This chain of events can create chromothripsis, leading to cancer, and may inform early diagnosis methods.
Researchers found that telomeres slow down and sometimes even reverse with weight loss and exercise in breast cancer survivors. Higher body fat levels are associated with shorter telomere length.
Scientists at Johns Hopkins Medicine have identified a crucial enzyme in maintaining telomere length. The discovery was made using a novel method called ADDIT, which found that ATM kinase plays a vital role in lengthening telomeres.
A BU School of Medicine researcher has identified a small molecule that selectively kills ALT-positive cancer cells, offering a potential therapeutic approach to deadly forms of human cancer. The discovery targets the ALT pathway, frequently reactivated in aggressive cancers such as osteosarcoma and glioblastoma.
Researchers have identified a cellular signal in amniotic fluid that builds up when a pregnant woman is about to go into labor. The study found that telomere fragments in the fluid increase with fetal maturity and can trigger inflammation, signaling fetal readiness for delivery.
Researchers from UCLA and UC Berkeley have produced high-resolution images of the telomerase enzyme, revealing its structural details and interactions. The study sheds light on telomerase's role in aging and cancer, providing potential new strategies for treating disease.
A Brazilian study found that ADHD children and their mothers have shorter telomeres, a hallmark of cellular aging, associated with increased risk for chronic diseases like diabetes, obesity, and cancer. Hyperactivity symptoms were more related to telomere length than inattention symptoms.
Researchers identified a mutated POT1 gene in families with multiple tumors, including cardiac angiosarcoma. The finding opens up the possibility of early diagnosis and treatment for family members.
Scientists at Emory University School of Medicine found that alpha lipoic acid can stimulate telomerase, the enzyme that lengthens telomeres, with positive effects in a mouse model of atherosclerosis. The discovery highlights a potential avenue for treating chronic diseases.
A study found a significant association between long telomere length and increased risk of lung adenocarcinoma. Long telomeres were associated with more rounds of cell division, potentially allowing for more opportunities to accumulate carcinogenic mutations.
Researchers are examining the relationship between telomere length and age-related diseases, with the goal of understanding why some people remain healthy into old age while others develop chronic disease. The £2 million study will provide a rich resource for researchers studying various diseases, including heart disease and cancer.
Telomeres, protective caps on chromosome ends, have been linked to numerous illnesses, including many types of cancer. Their shortening is associated with ageing and tissue regeneration issues, but cancer cells can repair them using telomerase.
CNIO researchers discover that telomeres are at the origin of idiopathic pulmonary fibrosis, a disease with no current treatment. The study reveals that telomere damage triggers progressive pulmonary fibrosis in mice, suggesting new therapeutic strategies based on telomerase activation.
A recent study by the University of Gothenburg has found that starfish that reproduce through cloning have better health and longer lifespans than those that undergo sexual reproduction. This is due to the regulation of telomeres, which are crucial for an individual's lifespan.
Researchers at Hiroshima University found a correlation between telomere G-tail length and endothelial dysfunction, as well as stroke and dementia, in patients with chronic cerebrovascular disease. The study suggests that telomere G-tail length may be a useful biomarker for predicting cardiovascular risk.
The study analyzes 100,000 Californians' health records and genetic data to track down genetic contributions to disease. Researchers have identified genetic variants linked to various diseases, including prostate cancer, allergies, and diabetes.
A study by University of Pittsburgh researchers found a significant link between living in neighborhoods with high crime and vandalism and biological aging processes. Telomere length, a key indicator of cellular health, was found to be shorter in individuals from disadvantaged areas, similar to a 12-year chronological age difference.
Researchers found shorter telomeres in preschoolers with oppositional defiant behavior, a hallmark of cellular aging. Maternal clinical depression also correlates with telomere length, with children of depressed mothers having shorter telomeres at ages 4 and 5.
A study published in the Proceedings of the National Academy of Sciences found that people with roseola virus DNA in their chromosomes are three times more likely to suffer from angina. The virus's genetic material can be transmitted like human genes, and its presence may lead to premature aging and inflammation.
A recent study published in Respirology found that patients with idiopathic pulmonary fibrosis (IPF) have significantly shorter telomere lengths than healthy individuals. The study suggests that mutations in the enzyme responsible for maintaining full-length telomeres may play a key role in the development of IPF.
Researchers from CNIO have discovered a new approach to fighting cancer by targeting telomeres and blocking the TRF1 gene. This method shows dramatic improvements in mice with lung cancer, with minimal toxic effects, offering a promising therapeutic target for cancer therapy.
Researchers discovered a direct link between telomere degeneration and myelodysplastic syndromes (MDS), a group of blood cell disorders. The study found that DNA damage caused by dysfunctional telomeres resulted in repressed expression of the RNA splicing gene SRSF2, affecting CMPs' ability to differentiate.
Researchers found that humans with genetically long telomeres have an increased risk of dying from cancer, contrary to expectations. The study suggests that targeting the repair process of telomeres could be a promising approach for cancer treatment.
Researchers created a mouse model showing telomere dysfunction triggers liver damage, including cirrhosis and hepatitis. Telomeres protect genetic data, but their dysfunction leads to disease.
A recent study published in the JNCI: Journal of the National Cancer Institute found a surprising association between shorter telomeres and decreased cancer mortality. The researchers analyzed data from two prospective cohort studies involving over 64,000 individuals and discovered that those with longer telomeres had higher genetic sc...
Researchers from Johns Hopkins Medicine discovered that premature aging of stem cell telomeres drives emphysema, not inflammation. This finding redirects research efforts to fix the underlying problem rather than treating symptoms.
High-ranking spotted hyenas have longer telomeres and better overall health compared to subordinates, according to a new study. The research suggests that social rank plays a significant role in aging and stress in wild mammals.
A study found that TERT mRNA levels are highly predictive of aggressive bladder cancers, allowing doctors to recommend targeted treatments and improve patient outcomes. The study also suggests that telomerase reactivation is crucial for the progression of bladder cancers, highlighting a potential target for disease intervention.
A study found that patients who received a stem cell transplant from donors with longer leukocyte telomere length had higher overall survival rates compared to those with shorter lengths. The researchers also discovered no association between donor or recipient telomere length and post-transplant complications.
Research finds a connection between telomere mutations and lung disease, with shorter telomeres indicating a greater chance for bone marrow failure, liver disease, skin disease, and other conditions. The study also highlights the importance of telomere research in understanding lung disease and its potential impact on future generations.
Researchers have developed a treatment that extends telomeres in human cells, which could lead to longer and healthier lives. The treatment uses modified mRNA encoding TERT, resulting in rapid lengthening of telomeres and increased cell division capacity.
Researchers discovered that mild malaria infections in birds accelerated telomere shortening, leading to premature death. Infected individuals produced fewer offspring despite no visible symptoms.
A new procedure can increase the length of human telomeres by up to 1,000 nucleotides, allowing researchers to generate large numbers of cells for study or drug development. This breakthrough may lead to new ways to treat diseases caused by shortened telomeres.
Researchers have identified a new potential treatment targeting the alternative lengthening of telomeres (ALT) pathway in cancer cells. Treatment with a small molecule inhibitor suppressed growth and survival of ALT-positive tumor cells.
A new study finds that higher human exposure to cadmium can lead to significantly shorter telomeres, associated with cardiovascular disease and other diseases of old age. Cadmium exposure has been linked to premature aging of cells, kidney disease, and other health problems.