Articles tagged with Cancer Genetics
A new study found that unmarried cancer patients who are separated at diagnosis have poorer survival rates compared to widowed, divorced, and never married patients. The researchers suggest that the stress of separation may compromise an individual's immune system and lead to a greater susceptibility to cancer.
Scientists at the University of North Carolina have found that drugs targeting ERBB3 could be more effective in killing colon cancers resistant to current EGFR inhibitors. Genetic studies show that blocking ERBB3 can significantly reduce cell growth and induce cell death in human colon cancer cells.
Researchers at USC have identified novel genetic mechanisms that govern an individual's risk of developing prostate cancer, highlighting the role of gene 'deserts' and regulatory sequences. The study found that genetic variations in these regions can modulate gene expression, increasing the risk for certain diseases.
A new mouse model reveals that hyaluronic acid plays a critical role in skeletal growth, chondrocyte maturation, and joint formation. The discovery opens possibilities for future research into age-related diseases such as arthritis and skin aging.
Researchers discovered epigenetic changes in mice with chronic lymphocytic leukemia that occur before disease symptoms appear. These findings suggest an early methylation test could predict cancer development and delay its onset.
Researchers have used innovative approaches to deduce the internal structure of chromatin, reconciling a decades-old controversy. The new finding could unlock the mystery behind cancer origins and other diseases. Chromatin's complex combination of DNA and proteins regulates genetic processes like DNA replication and transcription.
Researchers have discovered a new gene fusion, NDRG1-ERG, that produces a protein potentially targeted by drug therapies. This finding may improve prostate cancer testing and treatment options.
Researchers at McGill University discovered significant genetic disparities between blood and tissue cells, undermining the validity of genome-wide association studies. This finding has implications for vascular diseases, such as abdominal aortic aneurysms, where tissue samples are often used.
A new study identifies a group of individuals born with genetic mutations that increase their risk of developing colon cancer. The study found that these mutations affect the glycosylation process, leading to alterations in mucus production and tumor development.
A novel DNA repair pathway, referred to as DNA hairpin repair (HPR), targets TNR hairpin removal in the daughter strand to ensure fidelity of TNR sequences. This finding may be responsible for TNR instability in diseases such as Huntington's disease.
A new study found that African-American patients with breast, ovarian, and prostate cancer tend to die earlier than patients of other races, even when controlling for medical treatment and socioeconomic factors. The analysis of over 20,000 patient records suggests a potential role for genetic factors in the survival gap.
A new study has identified a second gene linked to familial testicular cancer, raising the risk of men with a family history. The PDE11A gene's mutations are found in about one out of every five families studied, and may modify an individual's susceptibility to developing a tumor.
A new study found that high intake of dietary fats, particularly from red meat and dairy products, is associated with a higher risk of pancreatic cancer. Men and women who consumed more total and saturated fats had significantly higher rates of pancreatic cancer compared to those with lower fat consumption.
Scientists at the Salk Institute have identified a pivotal role for two enzymes, WWP-1 and UBC-18, in regulating lifespan in response to diet restriction. The study found that overexpressing WWP-1 extends lifespan in worms, while depleting UBC-18 negates the effects of caloric restriction.
A genetic glitch called copy number variation in a single chromosome is associated with neuroblastoma. Researchers have identified this link, which could lead to the development of targeted therapies for the disease.
Dr. Jeffrey Friedman of Rockefeller University identified leptin as the 'satiety factor' behind obesity and type 2 diabetes, shedding light on chemical and genetic factors involved in the condition. The discovery has opened possibilities for future pharmaceutical treatments, influencing research worldwide.
A new study from the University of Utah Health discovers that sperm delivers more complex genetic material than previously thought, which may promote healthy baby development. The research also raises concerns about how a man's aging, health, and lifestyle affect fertility and embryo development.
Researchers have identified a key gene, eIF4G1, overexpressed in the majority of cases of IBC, leading to rapid metastasis and high mortality rates. The study's findings could lead to new approaches and therapies for treating IBC.
A study published in the World Journal of Gastroenterology found that females are at a higher risk of developing gastric cancer than males when their mothers have a history of non-gastric cancer. The research analyzed family histories of 2260 patients with gastric cancer and identified key genetic and environmental factors contributing...
A study analyzing the mutator hypothesis found that cancer cells' efficient pathways to cancer are often driven by genetic instability, supporting the hypothesis. This discovery has implications for cancer therapy, as it may enable cancer cells to rapidly evolve resistance.
Sharing personal genetic information online raises ethical questions about privacy and consent. Stanford researchers say we need more data on who's giving out information and how it's being used to fully understand its implications.
A study published in Nature Genetics found that men with two copies of the KITLG gene have a 4.5-fold higher risk of testicular cancer, while those with two copies of the SPRY4 gene have a 1.48-fold higher risk. The discovery sheds light on genetic factors contributing to the disease and may help identify critical environmental factors.
Researchers propose a new model of cancer development based on the loss of cellular communication due to low vitamin D levels. Vitamin D adequacy may halt the first stage of cancer by re-establishing intercellular junctions, potentially preventing cancer development.
A new tool, developed at North Carolina State University, allows researchers to visually represent DNA sequences and identify minute genetic variations. This enables the detection of genetic patterns that can lead to diseases such as cancer and Huntington's disease.
A new study finds that exposure to particulate matter can reprogram genes associated with tumor suppression, affecting cancer development and outcomes. The changes are detectable after just three days of exposure, raising hopes for early interventions to prevent or reverse gene programming.
A recent study at Fox Chase Cancer Center found that most parents share their BRCA1/2 test results with their children, with only 9% reporting negative reactions. The age of the child and parent cancer history were key factors in determining whether or not to share the results.
A study by Fox Chase Cancer Center found that approximately 17% of individuals were at high-risk, while 70% were at moderate-to-high risk. The researchers emphasize the importance of accurately assessing cancer risk to provide targeted prevention support.
Jindong Chen, a VARI researcher, has been awarded the AACR Scholar-in-Training Award for his presentation on Birt-Hogg-Dubé (BHD) syndrome and its relation to kidney tumors. This award recognizes groundbreaking cancer research and is highly competitive among applicants.
The PhenX toolkit provides a set of standardized measures for research subjects' physical characteristics and environmental exposures. This will allow researchers to compare data from multiple studies, accelerating efforts to understand the complex genetic and environmental factors that cause common diseases. The toolkit contains stand...
Researchers at M. D. Anderson Cancer Center discovered genetic variations in the inflammation pathway that reduce bladder cancer recurrence and increase survival. Patients with risk-reducing genotypes had a 84% lower likelihood of disease recurrence after BCG treatment.
Researchers develop method to target genes in Toxoplasma gondii, a parasite responsible for malaria and diarrhea. The breakthrough enables the creation of safe and effective genetically modified vaccines and drug therapies.
Dr. Jonathan Berg received the inaugural Richard King Trainee Award for his publication on microduplications in the 22q11.2 region. The award recognizes the utility of array CGH technology in identifying genomic imbalances and its impact on defining molecular etiology and clinical phenotypes.
Researchers traced a genetic mutation in the Fry family, who arrived in Massachusetts colony in the 1630s, to its impact on colon cancer. Through routine screening and education, individuals with the mutated gene can prevent cancer.
Researchers at Johns Hopkins Medicine found that demethylation, the removal of chemical bonds from cancer-promoting genes, can trigger more than half of all cancers. Demethylating drugs used to treat some cancers may actually cause new cancers as a side effect, warns Dr. Joseph Califano.
A study found that children and siblings of individuals with venous thrombosis have a higher risk of developing the condition. Family history was associated with a more than two-fold increase in risk, even if no known genetic factors were present.
Scientists at Duke University Medical Center have discovered two genetic markers that significantly increase the risk of developing chronic obstructive pulmonary disease (COPD) in smokers. These variants, located near a nicotine receptor, may be reduced by quitting smoking before COPD symptoms appear.
A study found that genetic variations in DNA repair genes can affect a person's risk of developing Hodgkin disease. Research suggests that differences in these genes could modify the risk of HD, with some individuals being up to four times more likely to develop the disease.
A new strategy to enhance the BCG vaccine's effectiveness has shown superior protection against tuberculosis in a pre-clinical test. By neutralizing the bacteria's evasive mechanisms, researchers have increased the number of TB organisms killed and duration of protection by threefold.
A Special Report in The Lancet Oncology explores the complexities of sharing genetic information with close relatives to prevent breast cancer. Experts weigh the pros and cons of adjusting the law, considering patient confidentiality, personal privacy, and the potential benefits of early interventions.
Researchers discover gene ATOH1 regulates cell specialization, preventing cancer formation in organisms. Reactivating the gene in human colon cancer cells halts tumor growth and induces cell death.
Scientists at Duke University Medical Center and Johns Hopkins University have identified two genes with potential as therapeutic targets for malignant glioma, a deadly class of brain tumors. IDH1 mutations were found in over 70% of astrocytomas and olidgodendrogliomas, associated with longer survival times.
Scientists at Stanford University School of Medicine have devised a new biological marker to monitor mitochondrial disorders, which cause organ failure, seizures, and premature death. The discovery enables researchers to hunt for treatments and helps physicians check patients' status before health crises erupt.
Researchers at the University of North Carolina have found that disrupting the circadian clock can slow the progression of cancer. The study suggests that altering one of four essential 'clock' genes can extend the lives of mice with cancer by 50% by making cancer cells more vulnerable to cell suicide.
Research identifies Interleukin 6 (IL-6) and STAT3 as key players in colitis-associated cancer development. The study suggests that targeting these proteins may be effective in preventing and treating CAC, a serious complication of inflammatory bowel disease.
A comprehensive review of case-control studies links gene polymorphisms in alcohol dehydrogenase and aldehyde dehydrogenase enzymes to an increased risk of upper aerodigestive tract cancers. Polymorphisms ADH1B and ALDH2 are associated with a higher risk, but data on other variants is insufficient for meta-analysis.
A study found that consumers desire more genetic testing for life-altering conditions such as mental retardation, blindness, and cancer, but are less interested in prenatal testing for traits like superior intelligence or athletic ability. The study suggests that consumers prioritize screening for diseases over enhancements.
Scientists at Emory University School of Medicine have found a way to block the toxic effects of tPA, a life-saving clot-busting drug used in acute stroke treatment. By blocking LRP1, a molecule that transmits inflammation signals triggered by tPA, the researchers were able to soften the drug's impact on the brain.
A study led by Professor Derry Roopenian found that a blocked protein called Interleukin 21 prevents systemic lupus erythematosus (SLE) in mice. The researchers also demonstrated the importance of IL21 signaling in SLE progression, suggesting that interrupting this process could be an effective therapeutic option for human SLE patients.
Research in Costa Rica found that H. pylori infection, particularly the status of cagA and vacA genotype distribution, plays a major role in gastric cancer incidence rate variability. Gastric atrophy and intestinal metaplasia were more common in patients with high GCIR.
Researchers at the University of Cincinnati have identified a potential biomarker for predicting colon cancer risk and progression. They found genetic hotspots that regulate gene expression, which could be used to identify individuals at higher risk of developing aggressive colon cancer.
Researchers explore genetic mechanisms of skin color in zebrafish, a model organism for understanding human skin color and race. The studies shed light on the evolution of skin pigmentation and its relationship to environmental factors.
A Florida State University researcher has received a four-year, $1.2 million grant to explore the link between RNA silencing and gene regulation in fighting cancer and diseases. The goal is to understand how to switch off genes causing cancerous tumors and cardiovascular disease.
Two studies examine over 600,000 genetic markers in ADHD patients, finding that multiple genes contribute to the disorder. The findings highlight the need for larger studies to fully understand the genetic mechanisms underlying ADHD and to develop more effective treatments.
Researchers have identified a novel zebrafish model of Costello syndrome, a developmental disorder caused by mutations in the H-RAS gene. The study reveals that activated H-RAS promotes overabundant cell growth and hallmarks of Costello Syndrome, including heart defects and physical deformities.
Research identified common variants in ABCB1 and ABCC1 genes that increase lung cancer risk. Variants were found more often in patients than controls, particularly in women and younger individuals. These findings may help prevent tobacco-related cancers.
Researchers at UCSF Ernest Gallo Clinic and Research Center have identified a DNA sequence variation on chromosome 15 associated with the level of response to alcohol. This finding could signal the genetic factors that affect alcohol abuse, and may help develop targeted treatments.
UC San Diego researchers have found that analyzing groups of interactive genes can better predict the progression of chronic lymphocytic leukemia. They identified 30 subnetworks of gene expression patterns that separated patients with slow-growing and aggressive forms of the disease.
Researchers at Rutgers University–Camden have identified a complex coding language that allows cells to organize and communicate, enabling the formation of intricate patterns in fruit fly eggs. This breakthrough understanding of genetic patterning has implications for our knowledge of developmental biology and diseases like cancer.
Researchers discovered a greater level of genetic complexity for diseases than thought, focusing on iminoglycinuria and hyperglycinuria disorders. The study found that up to four different pumps in the kidney determine the disorder's occurrence, suggesting a need for integrated complex genetic information.
A study published in JAMA Network found an association between male birth defects and certain genetic mutations, including Klinefelter syndrome and INSL3 receptor gene mutations. The research suggests a higher risk of infertility and testicular cancer in men with cryptorchidism, highlighting the importance of genetic testing.