Articles tagged with Cancer Genetics
Researchers at Duke University Medical Center have discovered a gene link between juvenile polyposis and high blood pressure syndrome. The study suggests that patients with the intestinal disorder should undergo genetic screening for vascular defects, as they are at risk of experiencing severe nosebleeds or strokes.
Researchers found a significant increase in cancer cases among teenagers and young adults, with certain cancers dominating at different ages. The study suggests that environmental risk factors and genetic susceptibility may play a role in the increasing incidence of adolescent and young adult cancer.
A recent study, PROSE, found that double mastectomies significantly reduce the risk of breast cancer in women with BRCA1 and BRCA2 gene mutations by 95%. The study followed 483 at-risk women for over six years, showing that prophylactic mastectomies can be an effective preventive measure.
Researchers have discovered a new hereditary cancer mutation associated with an increased risk of colon, endometrial and ovarian cancers. The mutation was found in descendants of a German immigrant who arrived in the US in 1727.
A new theory by Steven Frank proposes that cancer progression speeds up with age, leading to increased incidence in older adults. As people age, fewer stages remain before cancer develops, resulting in higher cancer rates.
A study published in Nature Biotechnology found that the Sindbis virus is effective at killing tumors in mice, with varying time and injection schedules required. The virus targets tumor cells by binding to a specific receptor, making it a potential tracking device for cancer.
A study published in Science reveals that the overwhelming source of human genetic variation is between individuals, not ethnic groups. The research also highlights the importance of multi-disciplinary collaboration in advancing medical knowledge.
The International HapMap Project aims to map the locations of representative tag SNPs in DNA samples from diverse populations. The project's results will increase the power and reduce the cost of future genetic association studies, significantly speeding up the discovery of genes involved in common diseases.
Researchers have discovered that Heat shock protein (Hsp) 70.1 and 70.3 can be used to increase cancer cells' vulnerability to radiation treatments, offering a new treatment window for cancer patients. The proteins were found to interact with telomerase, an enzyme that helps maintain the telomeres at the ends of chromosomes.
Researchers have developed a mouse model that mimics human pancreatic cancer, enabling the discovery of biomarkers for early detection and potential therapeutic targets. The model replicates the disease's progression and is poised to facilitate rapid testing of novel treatments.
Research suggests that air travel increases the risk of blood clots, particularly in individuals with genetic predispositions and those taking oral contraceptives. Long-haul flights lasting eight hours or longer may double the risk of isolated calf muscle venous thrombosis.
A study found that patients with high levels of low molecular weight cyclin E have aggressive, invasive breast cancer, and the protein may be a better predictor of patient outcome than current markers. This altered form of cyclin E can induce genetic instability, making tumors unresponsive to treatment.
Researchers at Fox Chase Cancer Center discovered a novel DNA-repair gene mutation that causes resistance to cancer drugs, particularly in colorectal cancer. The defective MED1 enzyme interferes with chemotherapy's effectiveness, making cancers resistant to widely used treatments.
Researchers at St. Jude Children's Research Hospital have developed a new gene profiling technique that could simplify diagnostic tests for acute lymphoblastic leukemia (ALL), a childhood cancer with an 80% success rate due to risk-adapted therapy.
Scientists at Stanford University have created a 'supersized' DNA molecule, xDNA, consisting of larger base pairs that can increase stability and fluorescence. This new genetic system has the potential to revolutionize medical biopsies and potentially lead to the discovery of new life forms.
Dr. Yuan Chang discovered human herpesvirus 8 (KSHV) in 1994 and has since studied its biology to understand how it causes cancer. Her work has transformed understanding of the most common malignancy in people infected with HIV.
A new model of cancer development suggests that Id1 activation may be crucial for tumor growth, contradicting previous research. The study, which used mice exposed to carcinogens, found that tumors developed faster in mice without the Id1 gene.
Researchers discovered a genetic link between prostate cancer and a specific gene variant, CYPIBI. The study found that tiny variations in the gene may increase or decrease its cancer-causing effects, leading to a higher risk of developing prostate cancer.
A new study identifies a specific DNA stretch on chromosome 9 that houses a susceptibility gene linked to increased colon cancer risk. Researchers analyzed blood samples from 53 families affected by colon cancer or pre-cancerous polyps and found a common genetic link.
Dr. Hong's work has accelerated the pace of growth in cancer prevention research, opening doors to less toxic and more effective chemopreventive agents and regimens. His research has demonstrated the effectiveness of biochemoprevention in reducing both primary and recurrent cancers.
The study found that methylation levels in a specific gene can predict the seriousness of breast cancer. High levels of promoter methylation correlate with an altered structure of the gene, resulting in a tightly closed DNA configuration that prevents gene activation.
Researchers found genetic mutations in PHF9 disrupt critical intracellular repair mechanisms, leading to Fanconi Anemia's serious complications. The discovery highlights the importance of PHF9 as a potent cog in DNA repair machinery, with potential implications for preventing excessive DNA damage and cancer.
A new blood test can detect smokers with low levels of DNA repair enzyme OGG1, which increases their risk of lung cancer by 5-10 times. The test may help inform smoking cessation decisions for high-risk individuals.
Measuring DNA repair enzyme OGG activity found a significant association with lung cancer risk. Smokers and nonsmokers with low OGG activity had higher lung cancer risk compared to those with normal activity levels, with smokers being at greater risk due to smoking alone.
A recent study found that the TGFBR1*6A gene is associated with a 26% increase in cancer risk, particularly for breast, ovarian, and colon cancers. The study's findings suggest that genetic testing and counseling can help identify individuals at high risk and provide targeted prevention strategies.
A genetic dictionary has been developed to understand the role of newly identified genes and their functions, which can aid in identifying unknown genes involved in cell division and cancer. The dictionary is based on gene activity data from four organisms and provides a context for understanding genetic words.
A new study by Northwestern University researchers reveals that nearly 80% of patients have a moderate or high genetic risk for adult-onset conditions. Using family history questionnaires and three-generation pedigrees, the team identified twice as many individuals at increased risk than documented in patient charts.
Research suggests that a mutation in a tyrosine kinase receptor gene, when combined with aml1-eto gene mutation, can cause acute myeloid leukemia in mice. This discovery raises the possibility of new treatments targeting these genes to control the disease.
A team of researchers analyzed ancient DNA from Joseph Merrick, aka the Elephant Man, to uncover the cause of his severe deformities. The study revealed that Merrick likely suffered from Proteus syndrome, while some experts suggest he may have had both Proteus syndrome and neurofibromatosis.
Research identifies three SNPs in PSA gene promoter that increase serum PSA levels, suggesting genotyping may improve prostate cancer detection sensitivity. The findings suggest a lower cutoff value for PSA testing for men with reduced PSA promoter genotype.
A study found a strong correlation between genetic polymorphisms in two genes and lung cancer risk in smokers. Mutations in both XPD and cyclin D1 (CCND1) occurred more often in lung cancer patients, increasing the risk of lung cancer among individuals with a smoking history.
Researchers discover mutant gene in mice causing premature ovarian failure, which may be factor in human infertility and cancer. The findings provide a molecular foothold into the process of egg activation and maturation, potentially leading to new contraceptive methods.
Researchers have identified a genetic marker, MSR1, that increases prostate cancer risk in African-American men. The study, which recruited over 400 black men from Flint, Mich., found that rare germ-line mutations were associated with an increased risk.
A new study connects a powerful cancer-causing protein to a gene associated with Werner syndrome, a disease causing premature aging. Researchers suggest developing drugs that interfere with the WRN gene's anti-aging properties to block Myc's tumor-promoting activity.
A study by University of Illinois Chicago nutrition scientists reveals a potential genetic link between selenium and breast cancer prevention. The research identifies specific versions of a gene that may require more selenium in the diet for cancer-preventive benefits.
Researchers found that twins who started menstruating earlier were more likely to develop breast cancer, suggesting a link between puberty hormones and genetic susceptibility. The study provides new insights into the causes of hereditary breast cancer and potential targets for intervention.
Researchers found NRAS mutations in 95% of primary hereditary melanomas, but only 10% of sporadic melanomas. The study suggests a link between UV light exposure and the activation of NRAS mutations in early stages of melanoma development.
Researchers at the University of Texas M. D. Anderson Cancer Center have developed a gene screen that can accurately predict which chemotherapy regimens will be effective for patients with newly diagnosed breast cancer. The test is 75% accurate in forecasting complete eradication of cancer, eliminating the need for trial and error.
Researchers have identified a genetic link between Fanconi's Anemia and pancreatic cancer, finding that faulty FA-related genes can make cancer cells susceptible to certain treatments. This discovery may lead to improved treatment options for patients with early-onset pancreatic cancer caused by gene mutations.
Mutations in the MSH6 gene occur in at least 1.6 percent of women with endometrial cancer, increasing their risk for developing certain cancers later in life. This study suggests that these mutations may be inherited and recommends genetic testing for family members.
Researchers Ronald M. Evans and Pierre Chambon received the prize for their discovery of nuclear hormone receptors and its impact on human physiology and disease prevention. The award highlights the significance of their work in developing new treatments for cancer, diabetes, and other diseases.
Researchers have created a colony of mice that can fight off aggressive cancer cells, shedding light on a previously unrecognized mechanism of host resistance. The discovery may hold promise for developing better therapies or prevention methods against cancer in humans.
The E2F3 protein plays a crucial role in controlling cell division. A study found that its absence can lead to increased genetic instability and centrosome proliferation, which may contribute to cancer development. The researchers discovered that cells without E2F3 were more likely to develop into tumors, especially when combined with ...
A study by the University of Texas M. D. Anderson Cancer Center found a link between lower dietary folate intake and increased risk of bladder cancer, particularly in individuals with genetic instability. The researchers suggest limiting exposure to DNA-damaging agents and consuming foods rich in folates to reduce the risk.
A study found a nearly two-fold increased risk of lung cancer among relatives of smokers, but no evidence of an increased risk among relatives of non-smokers. The researcher hopes to identify high-risk subgroups and develop tailored interventions or screening programs.
A recent study found that genes determining breast density are associated with an increased risk of breast cancer. Additionally, researchers discovered a compound called YC-1 that slows tumor growth in mice by blocking angiogenesis, potentially leading to new cancer treatments.
Dr. Nie constructs smart nanoparticle probes to recognize DNA sequences and genetic mutations, enabling early cancer diagnosis and personalized medicine. The nanobeacons can profile multiple genes and proteins simultaneously, allowing for individualized cancer treatments based on molecular differences.
Researchers at Georgia Tech and Emory University have developed improved molecular beacons for detecting viruses and cancer cells in living cells. The beacons use fluorescent dyes and oligonucleotides to target specific genetic sequences, producing a distinct optical signal when excited by light.
The new center at Dana-Farber will conduct therapeutic antibody research, providing high affinity human single-chain antibodies to support cancer research globally. Marasco's laboratory has constructed a large phage display library to quickly isolate antibodies against various cancer targets.
The Prostate Cancer Series assesses the epidemiology of prostate cancer, highlighting the impact of genetic and environmental risk factors. Despite progress in understanding diet-related risks, familial clustering, and ethnic variation remain poorly understood, presenting opportunities for further research.
A recent study by Penn researchers refutes prior research findings on the mental health impact of genetic testing for breast cancer. The study found that genetic testing is a tool for establishing truth and examining health strategies, rather than a source of anxiety.
The Alliance has awarded grants to Dr. Andrew Davidoff, Dr. Thomas Griffith, and Dr. Jeffrey Bartlett to develop gene therapies targeting neuroblastoma, prostate cancer, and ovarian cancer. The research holds promise for improved quality of life and reduced side effects for cancer patients.
Dr. Teitell's discovery of the animal model may uncover genetic mutations that cause certain types of blood cancers. The model could lead to new therapies by identifying cell pathways involved in cancer growth.
Researchers found that family members who are not genetically at risk may feel left out of discussions about disease prevention. Mothers play a crucial role in facilitating information sharing within families, according to the study.
Researchers at Memorial Sloan-Kettering Cancer Center successfully eradicated cancer in mice using targeted immunotherapy with engineered human T cells. The study, published in Nature Medicine, demonstrates the first-in-vivo efficacy of adoptive immunotherapy with engineered human T cells in mice.
Researchers found that mice with a specific gene (Hic1) developed cancers at an older age, depending on their sex. Female mice developed lymphomas and sarcomas, while male mice developed epithelial cancers. The study provides evidence of epigenetic problems leading to cancer in mice.
The annual conference discussed sex differences in development, immune system responses, and hormone effects on disease progression. Key findings included the role of microchimerism, fetal cells in maternal circulation, and steroid hormones in autoimmune diseases, such as multiple sclerosis and breast cancer.
Researchers have identified a gene called takeout that plays a key role in controlling the sex drive of male fruit flies. Takeout is regulated by sex-specific forms of the master gene regulators DSX and FRU, and its expression in the head is required for normal courtship behavior.
Researchers found that depression is influenced by additive genetic effects on temperament dimensions, which interact with individual environmental experiences. People predisposed to harm avoidance or high reward dependence are more likely to develop depression.
Researchers create animal model that develops three types of lymphoma, shedding light on genetic mutations and cell signal pathways. The discovery holds promise for developing new treatments to block cancer-causing signals.