Articles tagged with Cancer Genetics
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Researchers have identified the cancer stem cell of rhabdomyosarcoma, a childhood cancer, and uncovered a novel genetic signature driving its progression. The discovery opens up new avenues for targeted therapies to prevent recurrence and metastasis.
Researchers identified a genetic mechanism that permanently shuts down crucial genes in healthy immune system cells, which could be used to target cancer and infection treatments. The discovery was made in normal blood samples and found in a quarter of leukemia samples, highlighting the potential for this mutation as a therapeutic target.
A major new effort uncovers medium- and large-scale genetic differences between humans, including structural variations in DNA sequences that amount to 5-10% of the genome. These changes can influence disease susceptibility and normal functioning.
Researchers discovered a genetic mutation that increases muscle mass and enhances racing performance in whippets, similar to humans. Whippets with one mutated copy of the myostatin gene are more muscular and fast, while those with two mutated copies have excessive muscle and poor athletic performance.
Using erythropoiesis-stimulating agents (ESAs) to treat non-chemotherapy-related anemia in cancer patients may increase the risk of death, thromboembolic events, and potentially even cancer growth. Researchers recommend a cautious approach until further scientific data is available.
Researchers at Dartmouth and UCLA discovered the last unknown enzyme in plant vitamin C synthesis, a key step in understanding how plants produce this essential nutrient. The enzyme, VTC2, is responsible for the seventh step in vitamin C synthesis, marking a significant breakthrough in the field.
Researchers found that East Asians have lower levels of the EGFR protein, but those with lung cancer tend to have increased levels. This could explain why East Asians respond better to a certain type of chemotherapy.
A new computer software tool, PancPRO, helps genetic counselors and physicians predict the chance of carrying a gene for hereditary pancreas cancer and the lifetime risk of developing the disease. The model, developed by Johns Hopkins Kimmel Cancer Center researchers, calculates a percentage score of probability that a person carries a...
Researchers found that early age at first birth protects against ERPR-positive breast cancer, but not receptor-negative. Breastfeeding was protective for both subtypes, regardless of when a woman gave birth. Women who delay childbearing may benefit from breastfeeding to reduce their risk.
Researchers found that Hodgkin's disease survivors with higher chromosomal aberrations are two-and-a-half times more likely to develop another type of cancer. Chromosomal breaks, particularly those on one chromosome arm, may serve as a biomarker for predicting second primary tumor risk.
Biologists at Memorial Sloan-Kettering Cancer Center identified a set of genes working together to remodel blood vessels and promote breast cancer spread to the lungs. Targeting these genes with drug combinations may prove useful in treating metastatic breast cancer.
Researchers at the University of Utah Health have made a significant breakthrough in understanding the origins of synovial sarcoma, a deadly cancer that affects young adults. By engineering mice to develop this cancer, scientists discovered that it originates from muscle cell precursors known as myoblasts.
The American Association for Cancer Research (AACR) established a new lecture in honor of Princess Takamatsu, recognizing Webster K. Cavenee's groundbreaking research on genetic mechanisms of cancer predisposition. Cavenee will present his inaugural lecture on April 17, highlighting the importance of collaborations in cancer research.
A new study published in PLoS Genetics used computer simulations to trace genetic changes over thousands of generations in a simulated population, testing the effectiveness of statistical genetic methods in identifying multiple genes causing complex diseases. The researchers found that known methods are limited and identified which met...
Researchers design a custom mask to camouflage abnormal gene splicing, restoring the correct genetic blueprint. The approach shows promise in treating cancer and other diseases caused by genetic mutations, with future testing planned in mouse models.
A study at Ohio State University found that losing one copy of the Wwox gene greatly increases lung cancer risk in mice. Even with one working copy, they developed five times more lung tumors than those with two copies.
Robert C. von Borstel presents cancer as an invasive process similar to species evolution, with mutations and selection driving its progression. He hopes his work will help people re-examine cancer in a new light.
A new computer tool evaluates 16 predictive features to identify genetic mutations linked to a higher risk of cancer. The tool demonstrated an accuracy rate exceeding 94% in identifying protein functions associated with increased cancer risk.
A large-scale study by Johns Hopkins University found that individuals with genetic conditions are more likely to report being denied health insurance than those with other chronic illnesses. Nearly 60% of participants believed their insurance company could access medical information without permission.
A recent study published in Nature found that a genetic defect in PALB2 elevates the risk of both breast and prostate cancer. The mutation was discovered in Finnish breast cancer families and was also identified in patients with prostate cancer, suggesting its potential role as a susceptibility gene for heritable cancer.
A new study by Washington University School of Medicine identifies distinct genetic signatures among pilocytic astrocytomas that relate to their brain region origin. This finding has significant implications for understanding the causes of pediatric brain tumors, which are the leading cause of cancer-related death in children.
A Johns Hopkins Kimmel Cancer Center team discovered that a combination of lovastatin and cyclopamine killed 63% of medulloblastoma cells, compared to fewer than 20% with either drug alone. The duo blocks cell-signaling proteins, leading to cancer cell death through apoptosis.
A new study of over 7,000 Japanese-American men found that those from large families were more than twice as likely to develop stomach cancer due to the bacterium Helicobacter pylori. Younger siblings in these families appeared especially vulnerable to the most common type of stomach cancer.
A USC study in Nature Genetics finds genes silenced by Polycomb proteins are more likely to be methylated in cancers, supporting a stem cell origin of cancer. The research also shows that epigenetic alterations precede genetic events in cancer development.
A study published in Nature found that mice lacking a critical gene for repairing damaged DNA grow old rapidly and exhibit physical and genetic changes similar to those of normal-aged mice. The researchers discovered a new type of human progeria, a rare inherited disease characterized by accelerated aging.
The study presents positive interim results of using ALDESORT to isolate cord blood stem cells, showing improved overall survival at 90.9% compared to a historical control group. The infusion of cells enriched with ALDESORT appears to improve the speed and efficacy of cord blood transplantations.
Researchers with Bank On A Cure identified genetic pathways associated with venous thromboembolisms in patients treated with thalidomide for multiple myeloma. These findings may lead to screenings and tailored interventions to prevent blood clots, as well as the development of new treatments.
Scientists have identified nine new genetic mutations in cancer cells that make patients more likely to respond to bortezomib, a common multiple myeloma treatment. These findings may help physicians tailor treatment to individual patients, increasing the effectiveness of the drug.
A new genetic theory suggests that certain offspring characteristics can only be explained by genetic cooperation between maternal and paternal genes. This challenges the prevailing view of a parental power struggle, instead proposing that positive interactions between mothers and their offspring drive imprinting patterns.
A new study aims to uncover the causes of the testicular cancer increase among 15-35 year old Caucasian men. The research will examine environmental hormone disruptors and genetic susceptibility as potential risk factors.
A systematic review found no consistent evidence linking dietary folate intake to breast cancer risk. The review also did not find a significant association between a common genetic variation in the MTHFR gene and breast cancer risk.
The Ludwig Institute has expended over $1.1 billion in cancer research since its inception, and the new gift will ensure annual research funds of approximately $2 million per center. The six US institutions will collaborate on a powerful force in cancer research.
The Ludwig Fund has given a record-breaking $120 million to support cancer research at six top US institutions. The fund will provide annual research grants of approximately $2 million per center in perpetuity.
Scientists discover plant-derived triterpenoids and rexinoid LG100268 significantly reduce tumor growth in mice, offering potential future chemoprevention methods. The compounds inhibit inflammation and induce apoptosis in human lung cancer cells, presenting a promising avenue for preventing lung cancer.
Inhibiting cyclin D1, a gene present in excessive amounts in half of breast cancers, improves cell-killing effects of radiation. Flavopiridol was found to add to ionizing radiation's effects without toxicity, using zebrafish models.
Researchers developed a novel method to produce small chemicals from symbiotic bacteria found in sea squirts, which have anticancer properties. The ability to manipulate these chemicals using genetic pathways opens possibilities for developing new cancer and HIV treatments.
A study found that obese smokers have a 3.5 to 5 times increased risk of death compared to those of normal weight who never smoke. The study also revealed that being a current smoker is a stronger risk factor for cancer death than obesity.
A study pooled data from over 20 groups conducting breast cancer research, identifying 16 single nucleotide polymorphisms (SNPs) that may be linked to breast cancer risk. The authors found that five SNPs showed borderline statistical significance and could contribute to breast cancer incidence.
Researchers developed an online questionnaire to predict an individual's chances of harboring mutations in genes linked to colon cancer. The tool is based on a five-year study of nearly 2,000 patients and can help healthcare providers identify at-risk patients for early screening.
Two studies developed clinical models, PREMM1,2 and MMRpro, to predict the presence of mutations in MLH1 and MSH2 genes associated with Lynch syndrome. The models accurately estimated genetic risk for colorectal cancer, providing a timely tool for identifying and counseling families at risk.
A new prediction model, MMRpro, assesses a person's probability of carrying a particular defect in mismatch repair genes, which predisposes families to colorectal cancer. The study found that MMRpro outperformed existing assessment tools in identifying mutation carriers and predicting colon cancer risk.
The Jess and Mildred Fisher Center for Familial Cancer will expand clinical and research programs at Lombardi Comprehensive Cancer Center, providing automated cancer risk assessment and genetic predisposition research. The center also endows the Cecilia F. Rudman Arts and Humanities Program Fund, enhancing arts therapy and patient care.
A study by University College London researchers found that canine transmissible venereal tumour (CTVT) originated in a single wolf over 1,000 years ago and has since spread globally. The tumour cells are transmitted between dogs during sex, challenging current thinking about cancer.
The study found that YAP amplification transforms mammary epithelial cells, opening a novel cell growth controlling pathway. The research links the YAP gene to breast and other kinds of cancers, highlighting its potential as a cancer-causing gene.
Researchers have identified a genetic defect causing some people to feel full despite eating, providing hope for new anti-obesity treatments. The study pinpointed the melanocortin-4 receptor's role in regulating hunger and found potential therapeutic compounds.
Researchers discovered that different genes may be responsible for causing autism in boys than in girls, with varying degrees of severity. The study also found evidence for multiple genetic subtypes of autism, including male versus female and early versus late onset forms.
DNA damage resets the cellular circadian clock, suggesting a link between circadian timing and cancer. The study implies that the biological clock has a protective dimension in addition to its pacemaker functions.
Researchers at Columbia University Irving Medical Center have discovered that a cancer-causing protein can promote growth of axons in damaged spinal cord and brain cells. This discovery could lead to new therapies for treating neurological diseases.
Research reveals that women genetically predisposed to breast cancer may be more susceptible to low-dose ionizing radiation, such as chest X-rays. Women with BRCA1/2 mutations who reported ever having a chest X-ray were found to be 54% more likely to develop breast cancer than those who had never undergone the procedure.
A USC study found that the environment plays a big role in women starting to smoke, while genetics are a stronger influence for men. The study suggests that societal interventions can help prevent smoking initiation and highlight the importance of peer influence and social networks.
Researchers have developed a new test to detect rare genetic mutations in families at risk of passing on hereditary cancers like FAP. The innovative test allows for precise detection of mutations, enabling couples to make informed decisions about their pregnancies.
The HBZ protein is crucial for persistent infection of HTLV-1 in an animal host. Researchers discovered that a drug targeting this protein could disrupt viral replication and provide a new therapy for infected individuals.
Researchers have discovered a connection between a protein that prevents cancer in humans and lifespan in nematode worms, suggesting that this protein may determine how long we live. The 'checkpoint proteins' also appear to play a role in cell division and could be used to develop new strategies for treating neurodegenerative diseases.
Research using transgenic mice found that lower levels of selenoproteins accelerate prostate cancer development, highlighting the importance of selenium-containing proteins in preventing cancer. Further research is needed to understand how selenium supplements can maximize benefits.
A study published in Carcinogenesis reveals that sulforaphane, a compound in broccoli and cauliflower, can inhibit the development of hereditary colon cancer by inducing apoptosis and inhibiting tumor proliferation. The researchers found that mice fed with an SFN-supplemented diet developed significantly fewer and smaller tumors.
A new study by Fox Chase Cancer Center reveals specific defects in RNA translation underlie a progressive disease called dyskeratosis congenita, linked to anemia, immune deficiency, cancer, and premature aging. The research highlights the importance of proteomic analysis and potential therapeutic targets for developing treatments.
Researchers found a molecular mechanism that regulates careless DNA polymerases, preventing excessive mutations and cancer risk. The p53 and p21 proteins act as supervisors, controlling the careless enzymes' activities.
A new technique called Virtual Histology allows for faster and more accurate analysis of mouse embryos, enabling researchers to focus on abnormalities in development and improve treatment of childhood cancers. This breakthrough may also help improve the safety of household products.
The study found that the protein MBD2 mediates DNA methylation to silence specific genes. This could lead to more targeted approaches to reactivate genes and treat diseases such as sickle-cell anemia and beta-thalassemia, with less risk of unintended side effects.
Researchers at Duke University Medical Center are studying the interaction between genes and environment in promoting cancer. Environmental scientists have identified new culprits in the cancer equation, including chemicals that can damage or mutate genes, and epigenetic alterations that occur without changing a gene's fundamental code.