Articles tagged with Cancer Genomics
Researchers found that human and dog cancers share a common genetic basis. The study discovered identical genetic abnormalities in both species for certain types of cancer, suggesting cancer may be inevitable due to shared genome evolution.
Researchers warn that powerful molecular tools in cancer research can lead to misleading conclusions due to the complexity of generated data. The team highlights the need for better understanding of the challenges in analyzing these genomic and proteomic technologies.
Researchers have developed two molecular analogues of curcumin that demonstrate enhanced tumor suppressive properties against colorectal cancer. These new compounds have shown improved bioavailability and potency compared to natural curcumin.
The National Human Genome Research Institute is funding two new centers to explore genomic mechanisms in vertebrate diversity. The centers will use the stickleback fish model to identify genetic signatures driving adaptive changes, with potential implications for human diseases.
Research reveals a critical link between protein 'chat' and cancer development, shedding light on three rare but deadly disorders. Shortened chromosome ends can lead to genetic instability, promoting cancer growth.
A UVa-led team has discovered that chromatin packing plays a crucial role in determining gene expression timing. By analyzing the replication of genes in different cell lines, researchers found that loosely packed chromatin allows for early gene expression, while densely packed chromatin leads to late expression.
Researchers used a recombinant adeno-associated virus to study genomic instability in sporadic cancers, identifying breakage-prone palindromes that can contribute to cancer and aging. The discovery provides an opportunity to study these sequences on a whole genome scale.
Researchers at Dana-Farber Cancer Institute found that protein p53 prompts skin to tan in response to ultraviolet light, deterring melanoma skin cancer. This process may also underlie people's desire for sunshine and is linked to stress response in the body.
Researchers have identified numerous variations in gene copy number that may contribute to cancer risk and other complex diseases. The study used a new technique to analyze gene copy number in mouse strains, revealing potential implications for human health and illness.
A study found specific genetic alterations in the stroma of head and neck skin cancers are linked to smoking and tumor aggressiveness. The research identified key genomic regions that may harbor genes related to clinical outcome and targeted therapy.
Researchers identified a mutated separase gene responsible for chromosomal instability and increased tumor load in zebrafish exposed to carcinogens. The study highlights the importance of genomic stability genes in tumor development.
Researchers at UCSD School of Medicine identify a protein group that forms the chromosome-spindle connection, allowing for accurate genome distribution. They also discover a complex that helps cells discriminate between correct and incorrect spindle connections, shutting down pulling processes to prevent genetic birth defects and cancer.
A panel of genomic tests analyzes a cancerous tumor's molecular traits to determine the most effective chemotherapy, potentially saving lives and reducing toxic side effects. The tests show 80% accuracy in predicting which drugs will kill the tumor.
A new gene expression-based chemical genomic approach has identified potent inhibitors of androgen receptor signaling, including celastrol and gedunin, which may overcome prostate cancer treatment resistance. Additionally, rapamycin has been found to potentially reverse glucocorticoid resistance in childhood acute lymphoblastic leukemia.
A team led by Berkeley Lab's Susan J. Fisher and Joe W. Gray aims to identify cancer-specific proteins and patterns in blood samples for early detection. By combining genome-wide studies with mass-spectrometry-based protein analysis, the team hopes to develop a more accurate test for all cancers.
The Starr Cancer Consortium aims to coordinate research efforts among five renowned institutions to understand and treat cancer. The collaboration will focus on developing new technologies, diagnostic approaches, and treatments for various forms of the disease.
The Lung Metagene Predictor scans thousands of genes to identify patterns of gene activity in individual tumors, predicting a patient's likelihood of recurrence and recommending chemotherapy accordingly. The test has the potential to save thousands of lives each year by targeting high-risk patients with aggressive treatment.
Researchers identified a number of activity patterns in genes that make tumors biologically different, providing valuable information for treatment decisions. Four out of five predictors showed significant agreement in their outcome predictions, indicating potential for personalized treatments.
A study found that HPV16 and 18 variants persist longer in people whose ancestors are from the same geographical area as the virus. The research suggests that genetic variants specific to racial groups may play a role in persistence. Future studies should examine possible mechanisms behind variant-specific immune evasion.
Researchers found a discrepancy in reported maternal vs paternal relatives with breast cancer, suggesting under-reporting on the paternal side. This could lead to inaccurate family history and missed screenings for breast cancer.
Aberrant V(D)J recombination is found to be more common than thought, generating chromosomal abnormalities in human lymphomas. The study estimates that this process results in approximately 10,000 transpositions per day for the average adult.
Researchers have identified a new global mechanism for gene repression, using histones and the SUMO protein to silence genes. The study found that sumoylation occurs near telomeres and is involved in maintaining genomic stability.
A study by Mayo Clinic researchers identified 8 genes with significant under-expression and 3 with over-expression, strongly implicating them in prostate cancer development and progression. The findings suggest that these genes may serve as biomarkers for diagnosing and predicting prostate cancer, potentially improving treatment outcomes.
Mutations in the EphB2 gene are found in 15% of African-American men with a strong family history, compared to 5% without a history. This gene mutation is associated with an increased risk of prostate cancer in African-American men, particularly those with a family history.
The study highlights the complex interplay between genetic and environmental factors in determining human aging. While there is no single gene responsible for aging, genetics account for approximately 25% of how a person ages, with stress, environment, nutrition, lifestyle, and immunity also playing significant roles.
A new technique using a customized gene chip can rapidly detect genetic changes in neuroblastoma tumors, helping doctors predict treatment outcomes and guide therapy. The approach may also be adapted for other types of cancer with DNA changes important to their prognosis.
Researchers found accelerated chromosomal evolution since dinosaurs disappeared, with rates of change increasing 2-5 fold. The study identified segmental duplication around breakpoint sites, potentially linked to human diseases like cancer.
A novel tool has been developed to accurately classify human cancers based on microRNA expression patterns, offering a promising diagnostic approach. The study reveals striking correlations between miRNA profiles and specific tumor types, providing new insights into the genomic approaches to cancer diagnosis.
Researchers analyzed gene-expression libraries from daf-2 mutants to identify genes critical to aging. They found that metabolic processes were repressed in early and mid-life adults, contributing to longevity. Stress-response factors were also differentially expressed, suggesting protection against cellular stress may increase lifespan.
A recent study found that epidermal growth factor receptor (EGFR) gene mutations are more common in never smokers, females, and patients of East Asian ancestry. The mutations were also associated with increased sensitivity to gefitinib and erlotinib, tyrosine kinase inhibitors.
A study led by The Wistar Institute discovered that the enzyme Ubp10 plays a crucial role in protecting the genome's telomeric regions from destabilization. This protection may help prevent genetic recombinations that can trigger cancer or accelerate aging.
The American Association for Cancer Research (AACR) has awarded four faculty members from Minority-Serving Institutions for their meritorious work in basic, clinical, or translational cancer research. The awardees attended special conferences focused on oncogenesis and oncogenomics.
The American Association for Cancer Research (AACR) has awarded 6 minority researchers to attend cancer conferences in 2005. The awards allowed early career scientists from underrepresented groups to attend the conferences, providing them with opportunities to share new discoveries and advance their careers.
Researchers analyzed chromatin structure in human chromosomes and found similar patterns in equivalent regions of the mouse genome, revealing new insights into regulatory functions and potential connections to cancer. This study advances our understanding of how genes are turned on and off, with implications for improving human health.
Researchers discovered over 2,200 new human-specific Alu DNA repeats not found in chimpanzees, suggesting an explosive expansion of genetic code. This finding contradicts the idea of natural selection and highlights a chemical process driving human evolution.
A mouse model of Werner's syndrome reveals a link between aging and cancer development, suggesting that telomere shortening accelerates disease progression. The study suggests that genomic instability is a common denominator in both aging and cancer, with telomere length playing a key role.
A large family-based study identified specific genes associated with increased prostate cancer susceptibility, highlighting the potential for early detection and targeted surveillance. The study's findings also revealed that prostate cancers in genetically predisposed individuals tend to be more aggressive and fatal.
Scientists at The Wistar Institute discovered a binding site that, if blocked, could activate the protein to promote genomic stability and decrease cancer. By analyzing the molecular details of how sirtuins work, researchers identified potential activators using virtual libraries of molecules.
Researchers have identified two distinct forms of chromatin, a previously unrecognized level of genomic organization. This discovery has broad potential applications in cancer diagnosis and assigning functions to genome subsections.
Researchers used a novel technique to identify and precisely locate all predicted C. elegans genes, finding that 56% did not match the actual genes. The success in the worm genome suggests it can be applied to the human genome, bringing scientists closer to an accurate map.
A new study reveals that ATR kinase plays a crucial role in maintaining genome integrity by regulating cell cycle checkpoints and preventing DNA damage. The study shows that ATR is essential for ensuring cells leave the cell cycle without DNA damage, which can lead to diseases such as cancer.
A study reveals that EXO1 is essential for both male and female germ cell meiosis, highlighting its role in fertility. Mice lacking Exo1 function developed tumors and experienced severely depleted sperm levels, suggesting a link between EXO1 and cancer.
A new chip technology is being developed to analyze cancer genes, promising faster and more accurate diagnoses. The technology uses DNA microarrays to screen thousands of genes simultaneously, allowing for quicker testing than current methods.
The study identified specific genes regulated by Nrf2 in response to sulforaphane, a compound found in broccoli that can annihilate a broad spectrum of carcinogens. By understanding how this process works, researchers may develop new cancer preventive agents.
A single amino acid change in Rad50 can have far-reaching effects on genetic information transmission, impairing stem cell populations and predisposing to cancer. Mice with the mutation display genomic instability, partial embryonic lethality, and a higher risk of lymphoma development.
Researchers investigate the remarkable resilience of the mummichog fish to chronic pollution in the Elizabeth River. The study reveals that these fish have adapted through genetic changes, but this comes at a cost, such as increased cancer risk and reduced ability to thrive in clean environments.
Scientists have identified a specific gene, RNASEL, in the HPC1 region linked to hereditary prostate cancer in some families. The study found mutations that inactivate this cellular self-destruct mechanism, explaining why some prostate cells become cancerous.
The event brought together renowned experts to explore the potential impact of genetic advancements on society. Panelists discussed the future of genetics and its potential to revolutionize various fields.