Articles tagged with Dna Repair
Two proteins critical for maintaining healthy day-night cycles also protect against mutations that could lead to cancer. The study found that these proteins have an unexpected role in DNA repair, stabilizing a protein called Cry1 and preventing errors in DNA transcription.
A study found Sall4 protein promotes DNA repair in embryonic stem cells, potentially aiding cancer cell survival. This discovery raises the possibility of targeting Sall4 for cancer treatment.
Scientists at MD Anderson Cancer Center have discovered a key DNA pathway that allows certain brain cancers to resist standard treatments. The study found that activation of this pathway leads to enhanced survival of tumor cells and increased DNA repair, contributing to treatment resistance.
A study analyzing 17 million mutations in 650 cancer patients found that genetic mistakes are better repaired in some parts of the human genome, with genes switched on having lower mutation rates. The 'mismatch repair' mechanism varies in efficiency depending on chromosome regions.
Researchers discovered that organs have varying DNA repair capabilities, with the heart exhibiting the highest capacity, followed by other tissues. The brain showed no ability to repair damaged DNA, leading scientists to suggest that this may be linked to memory loss and dementia.
Researchers at the University of Illinois at Chicago found that damaged DNA can cause a molecule to slow down its patrol, giving it more time to recognize and initiate repair. The protein XPC, important for DNA repair, stalls at damaged sites due to twisted damage, allowing it to open and fix the damage.
Researchers at Imperial College London have taken pictures of the BRCA2 protein, showing how it repairs damaged DNA and interacts with other proteins. The study reveals that BRCA2 works in pairs with RAD51 to assemble filaments on broken DNA strands.
Researchers found that an ancient protein-making enzyme, TyrRS, has a second major function: protecting DNA during cellular stress. This discovery could lead to better therapies for radiation injuries and hereditary disorders like Charcot-Marie-Tooth disease.
Researchers discovered that as mice age, their primary DNA repair process fails and is replaced by a less effective mechanism, leading to increased mutations in critical tissues. This finding may explain why damaged DNA contributes to aging-related illnesses like cancer.
Scientists have discovered that cellular RNA can be used to repair DNA breaks in yeast, providing a novel mechanism of genetic recombination. This process reveals the existence of a new way for cells to maintain their genome stability, which could potentially lead to new treatments for genetic diseases.
Yale Cancer Center researchers have found that lupus antibodies can selectively attack and kill cancer cells with defective DNA repair mechanisms. The study, led by James E. Hansen, suggests that harnessing these antibodies could be a new approach to targeted cancer therapy.
Scientists at Washington State University have discovered a critical step in the DNA repair process that could lead to new therapies for hereditary diseases. They found that a specific protein must be 'unbuckled' to allow easy access for the DNA repair crew, and this discovery may lead to targeted gene therapy.
Researchers at UNC have found that Set2 plays a crucial role in DNA repair, which can lead to the development of cancer cells if impaired. The discovery offers insights into creating more targeted therapies for various forms of cancer.
Researchers at NYU Langone Health discovered a robust backup DNA repair mechanism in yeast cells that prevents common genetic mutations. This finding suggests a similar system may exist in humans, providing potential new targets for controlling some cancers and treating Aicardi-Goutieres syndrome.
Researchers at TSRI discover that Ring1b promotes fusion between telomeres, a process that can lead to cancer. Inhibiting this protein reduces the burden on cells affected by telomere dysfunction.
St. Jude Children's Research Hospital scientists identified a new source of DNA damage that may play a role in rare childhood neurodegenerative diseases, cancer, and aging. Topoisomerase 1 (Top1) causes DNA damage in the developing brain.
A team of scientists has identified a key factor that contributes to neurodegeneration in ataxia-telangiectasia, a rare genetic disorder. The study found that DNA damage repair systems are essential for cellular integrity and stability, and that defects in these systems can lead to conditions like A-T.
Research reveals cells shut down DNA repair processes during cell division to prevent chromosome fusions, a process that could lead to cancer. Telomeres fuse together when DNA repair is re-activated, causing defective chromosomes.
Researchers at NYU Langone Health discover how RNA polymerase patrols the genome for DNA damage and recruits partners to repair it, leading to fewer mutations and less disease. The study's findings have major implications for our understanding of DNA repair and its role in cancer and aging.
Scientists at VTT Technical Research Centre of Finland have discovered a novel DNA repair mechanism in cancer cells that allows them to survive DNA damage. This finding provides valuable insights into how cancer cells evade programmed cell death and can be targeted by new cancer therapies.
Researchers have discovered the human enzyme PrimPol, which recognises and repairs DNA lesions during replication, preventing breaks in chromosomes. This ancient enzyme has been found in archaebacteria and is thought to have played a key role in genome evolution and cancer development.
A team of researchers from Berkeley Lab and the Scripps Research Institute used a new technique to study the role of MutS in DNA's mismatch repair system, providing new insight into genome integrity. The study validated the 'beads-on-a-string' model of DNA repair and revealed details about MutS that could be valuable for drug design an...
Researchers at Louisiana State University found that microorganisms can repair their DNA even under freezing conditions, challenging previous assumptions about their survival in permafrost. This discovery has implications for the search for life on Mars and other icy worlds in the solar system.
Researchers have gained a better understanding of how cells deal with DNA damage that can contribute to cancer and other diseases. The study identified new prospects for developing cancer therapies by targeting the protein nucleolin to enhance sensitivity of tumor cells to radiation or chemotherapies.
Scientists have found a unique DNA repair mechanism that leads to increased genetic mutations, potentially contributing to tumor formation and cancer. This 'desperation replication' triggers bursts of genetic instability and can occur in non-dividing cells, making it a potential route for cancer formation.
Scientists have discovered a new mechanism of DNA repair that operates differently from previously thought. The research reveals how proteins BRCA1 and TopBP1 communicate, which could lead to more targeted cancer therapies. Researchers aim to explore ways to exploit these findings for improved treatments.
Researchers used large-scale computer simulations to gain a detailed understanding of the cellular recognition process of MutS and MSH2-MSH6 proteins. The study found that DNA bending facilitates the initial recognition of mismatched base pairs, leading to repair initiation.
Researchers at UC Davis show that individual protein molecules can restart at any speed achieved by the whole population of enzymes, demonstrating the ergodic theorem. This finding has implications for understanding protein folding, drug interactions, and enzyme engineering.
Researchers at UNC Charlotte have uncovered a previously unknown surveillance mechanism to monitor oxidatively damaged DNA. A novel trigger has been found for the ATR-Chk1 checkpoint pathway, providing new insights into cell response and repair mechanisms in oxidative stress.
Researchers at Moffitt Cancer Center found that a p53 deficiency can slow or delay DNA repair after radiation treatment. The study revealed that p53 regulates the expression of two enzymes, JMJD2b and SUV39H1, which control DNA folding.
Scientists have identified how the RecA protein guides a broken DNA strand to its matching sequence on double-stranded DNA, allowing for rapid repair. This discovery explains how DNA repair occurs quickly and highlights the importance of this process in maintaining genome stability.
Abnormalities in DNA repair mechanisms are a hallmark of cancer cells, leading to increased errors and genetic mutations. The UNM Cancer Center researcher is investigating the role of enzymes that repair DNA damage, aiming to identify new targets for cancer therapy.
A new study reveals how Human Cytomegalovirus (HCMV) co-opts cells' abilities to repair themselves, leading to preferential repair of the viral genome. The research, published in PLOS Pathogens, shows that HCMV-infected cells can efficiently repair their own DNA but not the viral DNA, with implications for developing antiviral therapies.
A study found that consuming red meat increases the risk of bladder cancer, particularly in individuals with a genetic variation in the RAD52 gene that impairs DNA repair. The study suggests limiting red meat intake to reduce this risk.
Researchers found that PARP inhibitors are sensitive to HER2-positive breast cancer cells, even without a DNA repair defect. The study suggests that inhibition of NF-kB signaling may be a cause of this sensitivity, paving the way for further research and potential broadened clinical application.
Researchers identified how certain RNA viruses hijack a key DNA repair activity of human cells to multiply, providing a new target for universal treatments. This discovery could lead to the development of broad-spectrum treatments for picornaviruses, including the common cold, without resistance issues.
Researchers from Delft University of Technology have discovered a crucial step in the DNA repair process, revealing how a broken DNA molecule efficiently searches for a matching sequence. The discovery uses a dual-molecule technique to clarify why certain sequences lead to quick dissociation while others form strong bonds.
Scientists have successfully mapped tens of thousands of molecular signaling events involved in DNA damage repair, shedding light on how cells communicate when their DNA is broken. This research will help develop new drugs with fewer side effects and better protect healthy cells during cancer treatment.
Two proteins, Rif1 and Rif2, discovered to deactivate DNA repair surveillance system, preventing cell 'anti-enzyme shield' from malfunctioning. Telomeres provide molecular 'caps' protecting chromosome ends from accidental breaks.
Scientists at the University of California, Davis have made a significant discovery on how DNA repairs itself. They found that the protein Rad51 searches for the correct region to use for repair by forming an extensive filament and guiding it to the right place in the chromosome.
The study reveals a DNA repair mechanism that can mitigate oxidative damage, which is linked to various diseases including cancer and Alzheimer's. This discovery holds promise for developing less invasive cancer therapies and early detection tests.
Researchers have solved part of the mystery of DNA mismatch repair (MMR) in eukaryotes, revealing a brief window of opportunity for MMR proteins to identify new DNA strands. This discovery sheds light on how eukaryotes eliminate genetic errors and develop cancer resistance.
Researchers at Berkeley Lab found evidence of non-linear DNA damage response to low dose radiation, suggesting a non-proportional relationship between dose and cancer risk. The study used time-lapse live imaging to observe the formation of DNA repair centers, which may be an optimal way for cells to deal with sparse damage.
A new study reveals two mechanisms by which cells remove embedded ribonucleotides from DNA: the mismatch repair system and RNase H. This research provides insights into how cells maintain genomic integrity and potentially opens up new avenues for understanding RNA-driven DNA evolution.
Researchers have discovered that the protein p97/VCP aids DNA repair by unwinding proteins at damaged sites. This mechanism holds potential for improving radio- and chemotherapy effects on cancer cells.
Researchers found that recombination, a key DNA repair process, has a self-correcting mechanism allowing DNA to make a virtual u-turn and start over. This discovery contributes new understanding to basic cancer biology and may improve the efficacy of cancer treatments.
Researchers have identified a new class of DNA repair enzymes that lack uracil repair capabilities, instead repairing adenine damage. This discovery provides insights into the diversity of DNA repair functions and highlights the importance of interdisciplinary collaboration in scientific discovery.
Researchers have discovered a protein called SIRT6 that improves DNA repair efficiency under oxidative stress, potentially leading to treatments for premature aging and cancer. The study found that increasing SIRT6 levels primed the cells to respond to DNA damage, allowing for faster repair of double strand breaks.
Boulton's research highlights include discovering key genes and enzymes involved in DNA repair mechanisms, including RTEL1 and ALC1. His work has led to novel therapeutic approaches for cancer treatment, particularly liver cancer.
Researchers at Berkeley Lab have discovered a new process for repairing double-strand breaks in heterochromatin, a crucial step in maintaining genome stability. This mechanism allows cells to accurately repair DNA damage and prevent chromosomal abnormalities that can lead to cancer and birth defects.
Researchers at Scripps Research Institute and Lawrence Berkeley National Laboratory have discovered a key enzyme in DNA replication that may be exploited to develop an effective anti-cancer therapy. The enzyme FEN1 works in a way opposite to accepted dogma, providing a sophisticated machine for cutting DNA.
Scientists discovered a network of repair proteins in bacteria that enables prioritized repair of heavily used DNA regions. The study found similarities between bacterial and human DNA repair systems, shedding light on how cells maintain their genetic instructions.
Weiguo Cao's research aims to understand the mechanisms of DNA repair and its contribution to cancer prevention. The study will investigate two DNA repair pathways and explore how defects in these processes can lead to cancer.
A team of Portuguese researchers has discovered that a specific Histone modification prevents DNA damage recognition machinery from arresting the cell cycle at telomere ends. This finding provides insights into the relationship between telomeres and cancer, as well as potential therapeutic interventions.
Researchers have purified the protein produced by the breast cancer susceptibility gene BRCA2, opening new possibilities for understanding, diagnosing, and treating breast cancer. The protein plays a role in repairing damaged DNA, acting as a mediator to help another protein associate with a single strand of DNA.
A UCSF-led team discovered a key reason why blood stem cells are prone to developing genetic mutations that can lead to adult leukemia. They found that quiescent blood stem cells use an error-prone DNA repair mechanism, which can result in chromosomal instability and contribute to hematopoietic abnormalities.
Researchers discovered that SUMO modifies RPA70, essential for DNA repair by homologous recombination. The connection offers a potential target to short-circuit repair, making cells more vulnerable to chemotherapy and ionizing radiation.
Researchers find DNA polymerase theta promotes inaccurate DNA repair process that can cause mutations and cancer. The discovery could lead to the development of new cancer drugs targeting the protein.
Researchers found that a small amount of cohesin is needed for cell division and DNA repair, while higher concentrations are necessary for other processes like chromosome condensation. This discovery helps explain the causes of Cornelia de Lange and Roberts Syndrome.
Researchers have discovered Ku70 to be a vital component in the DNA repair process for neurons, crucial in preventing polyQ diseases like Huntington's. Boosting Ku70 levels rescues mutant huntingtin-induced neurodegeneration in mouse models of HD.