Search Results
Your search for ,DnA matches 2209 pages
Showing 2001 - 2050Malaria-Causing Parasite May Contribute to Development of Burkitt Lymphoma
In an equatorial African region known as the “lymphoma belt,” children are ten times more likely than in other parts of the world to develop Burkitt lymphoma. This area is also plagued by high rates of malaria, and scientists have spent the past 50 years trying to understand how the two ...
Susceptibility Gene Identified for Familial Nonmedullary Thyroid Cancer
As reported in The New England Journal of Medicine, Gara et al identified a germline HABP2 mutation as a susceptibility gene for familial nonmedullary thyroid cancer. Identification of HABP2 Variant In a kindred study, whole-exome sequencing was performed using peripheral blood DNA from affected...
Investigational Topical Gel Is Safe and Effective in Patients With Cutaneous T-Cell Lymphoma, Phase I Trial Shows
Results of a phase I trial show that an investigational topical drug, resiquimod gel, causes regression of both treated and untreated tumor lesions and may completely remove cancerous cells from both sites in patients with early-stage cutaneous T-cell lymphoma. Currently, there is no cure for...
Key Genetic Factor in Cell Proliferation in Moles Identified
Scientists have known for years that a mutation in the BRAF gene makes moles start to grow but until now have not understood why they sometimes do not become cancerous. Researchers from the Perelman School of Medicine at the University of Pennsylvania have identified a major genetic factor that...
Study Identifies Genetic Mutations That Predict Response to Chemotherapy in Bladder Cancer
Although cisplatin-based neoadjuvant chemotherapy before cystectomy is the standard of care for muscle-invasive bladder cancer, only between 25% and 50% of patients achieve a pathologic response. A study investigating biomarkers that can predict response to chemotherapy in patients with...
Birinapant in Combination With Carboplatin May Be Effective Against Serous Ovarian Cancer
High-grade serous ovarian cancer often responds well to the chemotherapy drug carboplatin, but it frequently recurs after the first line of treatment. A team of University of California, Los Angeles, researchers has discovered that a subset of tumor cells that don’t produce the protein CA125, ...
Long Telomere Length Associated With Increased Lung Cancer Risk
A large-scale genetic study of the links between telomere length and risk for five common cancers found that long telomeres are associated with an increased risk of lung adenocarcinoma. No significant associations between telomere length and other cancer types or subtypes were observed. The study,...
Researchers Identify Vital Gene for Preserving Gastrointestinal Health During Cancer Treatment
The stem cells in the gut divide so fast that they create a completely new population of epithelial cells every week. However, this quick cell division is also why radiation and chemotherapy wreak havoc on the gastrointestinal systems of patients with cancer, as such therapies target rapidly...
‘Pill on a String’ Could Help Spot Early Signs of Esophageal Cancer
A “pill on a string” developed by researchers at the University of Cambridge could help doctors detect esophageal cancer at an early stage, helping them overcome the problem of wide variation between biopsies, suggests research published by Ross-Innes et al in Nature Genetics. The...
Circulating DNA and Protein Biomarkers May Be Associated With Benefit of Regorafenib in Metastatic Colorectal Cancer
In a retrospective study reported in The Lancet Oncology, Tabernero et al used commercially available BEAMing technology to assess plasma tumor DNA and protein levels in a subgroup of patients from the CORRECT trial of regorafenib (Stivarga) in metastatic colorectal cancer and examined the...
Noninvasive Prenatal Testing May Also Detect Some Maternal Cancers
A study published by Bianchi et al in the Journal of the American Medical Association (JAMA) showed that genetic test results revealed by noninvasive prenatal testing for fetal chromosomal abnormalities may detect underlying conditions in the mother, including cancer. The study reports on a case...
DNA Repair Kinase Identified as Key Driver of Metastasis in Prostate Cancer
Researchers at Thomas Jefferson University reported finding a single molecule that appears to be the central regulator driving metastasis in prostate cancer. The study, published by Goodwin et al in Cancer Cell, offers a target for the development of a drug that could prevent metastasis in prostate ...
DNA Shed From Head and Neck Tumors Detected in Blood and Saliva
On the hunt for better cancer screening tests, Johns Hopkins scientists led a proof-of-principle study that successfully identified tumor DNA shed in the blood and saliva of 93 patients with head and neck cancer. A report on the findings was published by Wang et al in Science Translational...
Protein-Enriched Exosome Useful for Early Diagnosis of Pancreatic Cancer
A protein encoded by the gene glypican-1 (GPC1) present on cancer exosomes may be used as part of a potential noninvasive diagnostic and screening tool to detect early pancreatic cancer, potentially at a stage amenable to surgical treatment, according to a study completed by University of Texas MD...
New Biomarkers Might Help Personalize Metastatic Colorectal Cancer Treatment
Metastatic colorectal cancer patients have improved survival rates when they respond to the first line of chemotherapy their doctors recommend. To better predict how patients will respond to chemotherapeutic agents before they begin treatment, researchers at University of California (UC) San Diego...
ETV6 Mutation May Trigger Lymphoblastic Leukemia
The results of a nearly 10-year investigation that identified a key gene mutation that can trigger acute lymphoblastic leukemia (ALL) and several other types of cancer were recently published by Noetzli et al in Nature Genetics. The findings have, for the first time, pinpointed a mutation that...
Whole-Exome Sequencing Identifies Biologically Informative Alterations in the Majority of Metastatic Cancers
In a study reported in JAMA Oncology, Beltran et al found that whole-exome sequencing of metastatic and treatment-resistant cancers revealed biologically informative alterations in the majority of cases. Although treatment recommendations could be made in the majority of cases, treatment was guided ...
Single Dose of HPV-16/18 Vaccine May Prevent Cervical Cancer
A single dose of the recombinant human papillomavirus (HPV) bivalent (types 16 and 18) vaccine (Cervarix) appears to be as effective in preventing certain HPV infections as three doses, the currently recommended course of vaccination, concluded a study published by Kreimer et al in The Lancet...
Multicenter Study Redefines Brain Tumor Diagnosis and Treatment
Scientists at multiple institutions have found a new way of classifying brain cancers that could very well change how the illness is diagnosed and treated. The study, a project of The Cancer Genome Atlas, found striking molecular differences between various forms of gliomas by looking at the makeup ...
HPV Serum Antibodies May Predict Survival and Disease Progression in Patients With HPV-Positive Oropharyngeal Cancer
A study by Dahlstrom et al investigating the usefulness of serum antibodies to human papillomavirus (HPV)-16 DNA antigens as predictors of survival for patients with oropharyngeal carcinoma has found that E1, NE2, and E6 antibody positivity were all strongly associated with improved overall and...
Polymorphisms Related to Oxidative Stress Associated With Poorer Cognitive Function After Chemotherapy for Childhood ALL
In a study reported in the Journal of Clinical Oncology, Cole et al found that polymorphisms in genes related to oxidative stress or neuroinflammation were associated with poorer cognitive function in survivors treated for childhood acute lymphoblastic leukemia (ALL). Survivors of childhood ALL...
ASCO 2015: NCI-MATCH Trial Links Targeted Drugs to Genetic Abnormalities
Investigators for the nationwide trial NCI-MATCH: Molecular Analysis for Therapy Choice announced at the 2015 ASCO Annual Meeting in Chicago that the precision medicine trial will open to patient enrollment in July. The trial seeks to determine whether targeted therapies for people whose tumors...
ASCO 2015: Tumor Sequencing Study Highlights Benefits of Profiling Healthy Tissue
As the practice of genetically profiling patient tumors for clinical treatment decision-making becomes more commonplace, a recent study from The University of Texas MD Anderson Cancer Center suggests that profiling normal DNA also provides an important opportunity to identify inherited mutations...
ASCO 2015: Phase III Study Finds Nivolumab Improves Progression-Free Survival, Especially When Combined With Ipilimumab, in Advanced Melanoma
A randomized phase III trial among patients with previously untreated melanoma found that initial therapy with nivolumab (Opdivo) alone more than doubled the median progression-free survival compared with ipilimumab (Yervoy) alone (6.9 vs 2.9 months), and the benefit was even greater when the two...
ASCO 2015: Variations in Liver Cancer Attributable to Hepatitis Virus Variations
Significant clinical variations exist among patients with the most common type of liver cancer, hepatocellular carcinoma, depending on the viral cause of the disease—hepatitis B virus (HBV) or hepatitis C virus (HCV). These differences suggest that hepatitis status should be considered when...
Women With Inherited KRAS-Variant Mutation May Be at Increased Breast Cancer Risk Due to Acute Estrogen Withdrawal
Researchers at UCLA Jonsson Comprehensive Cancer Center have discovered that for women with a relatively common inherited mutation, known as the KRAS-variant, abrupt lowering of estrogen may increase their breast cancer risk and impact breast cancer biology. Scientists also found that women with...
Study Finds Noninvasive Colon Cancer Screening May Be Promising for African Americans
In a first-of-its-kind clinical trial, physician-scientists at University Hospitals (UH) Case Medical Center, Seidman Cancer Center, and Case Western Reserve University School of Medicine found that a new, noninvasive technology for colon cancer screening is a promising alternative to colonoscopy...
ASCO Provisional Clinical Opinion Update: HBV Screening for Cancer Patients Before Cancer Therapy
As reported in the Journal of Clinical Oncology by Hwang et al, ASCO has released a provisional clinical opinion update on screening of cancer patients for hepatitis B virus (HBV) infection before cancer treatment to reduce the risk of HBV reactivation. The ASCO consensus panel providing the update ...
Nine-Valent HPV Vaccine Protects Against 80% of Cervical Cancers
The new nine-valent human papillomavirus (HPV) vaccine (Gardasil 9) can potentially prevent 80% of cervical cancers in the United States, if given to all 11- or 12-year-old children before they are exposed to the virus. Additionally, the new vaccine, which includes seven cancer-causing...
Dutch Analysis Questions Breast Cancer Protective Effect of Salpingo-Oophorectomy in Healthy BRCA1/2 Mutation Carriers
In a Dutch study reported in the Journal of the National Cancer Institute, Heemskerk-Gerritsen et al in the Hereditary Breast and Ovarian Cancer in the Netherlands (HEBON) study group found no apparent reduction in the risk for breast cancer with salpingo-oophorectomy in healthy BRCA1/2 mutation...
ASCO 2015: Oral Vitamin Reduces Risk of Common Nonmelanoma Skin Cancers in High-Risk Patients
The Australian ONTRAC trial showed that a form of vitamin B3 called nicotinamide significantly reduced the rates of new skin cancers in people at high risk of the disease. Taken as a twice-daily pill, nicotinamide reduced the incidence of new nonmelanoma skin cancers by 23%. These findings were...
TAS-102 Significantly Improves Overall Survival in Patients With Metastatic Colorectal Cancer
A large, phase III international study of the oral agent TAS-102 in patients with heavily pretreated metastatic colorectal cancer has found that the therapy improved overall survival by 1.8 months and also delayed disease progression. TAS-102 had few side effects and was also effective in patients...
Circulating Tumor DNA Is a Promising Biomarker for Progression in Diffuse Large B-Cell Lymphoma
In a study reported in The Lancet Oncology, Roschewski et al found that interim monitoring of circulating tumor DNA in patients with diffuse large B-cell lymphoma distinguished more and less rapid progression and that surveillance monitoring identified recurrence well before clinical evidence was...
AACR 2015: Study Identifies a Frequent Genomic Alteration in Pleomorphic Invasive Lobular Carcinoma
Research from Rutgers Cancer Institute of New Jersey shows genomic profiling identifies mutations in a gene associated with a rare subset of breast cancer—mutations that cannot otherwise be identified with standard clinical analysis of cells and tissue. The findings, presented at the AACR...
AACR 2015: Subgroup of Men With Metastatic Prostate Cancer Respond to Olaparib Treatment
Men with metastatic, castration-resistant prostate cancer who had mutations in genes linked to repair of damaged DNA were significantly more likely to respond to treatment with olaparib (Lynparza) compared with patients who had the disease without these mutations. These findings from the first...
Frequency of Germline TP53 Mutations in Patients With Early-Onset Colorectal Cancer Not Meeting Criteria for Li-Fraumeni Syndrome
In a study reported in JAMA Oncology, Yurgelun et al identified germline TP53 mutations in multiple patients with early-onset colorectal cancer from the Colon Cancer Family Registry who did not meet clinical criteria for Li-Fraumeni syndrome. Li-Fraumeni syndrome is associated with increased risk...
Circulating Tumor DNA May Be Used to Detect EGFR Mutations in Lung Cancer
Cancer DNA circulating in the bloodstream of lung cancer patients can provide doctors with vital mutation information that can help optimize treatment when tumor tissue is not available, an international group of researchers has reported at the European Lung Cancer Conference (ELCC) in Geneva...
Platinum Monotherapy Particularly Active in BRCA1/2-Mutant Metastatic Triple-Negative Breast Cancer
In the phase II TBCRC009 trial reported in the Journal of Clinical Oncology, Isakoff et al found that platinum monotherapy was active in treatment of metastatic triple-negative breast cancer, particularly in cases with BRCA1/2 mutation, and that an assay of genomic instability characteristic of...
Key Tumor-Cell Proliferation Mechanism Identified in Pediatric Bone Cancers
A particular molecular pathway permits stem cells in pediatric bone cancers to grow rapidly and aggressively, according to researchers at NYU Langone Medical Center and its Laura and Isaac Perlmutter Cancer Center. These findings were published by Basu-Roy et al in Nature Communications. Study...
FDA Grants Breakthrough Therapy Designation to Rucaparib in Advanced Ovarian Cancer With BRCA Mutations
The U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy designation to Clovis Oncology’s investigational agent rucaparib as monotherapy treatment of advanced ovarian cancer in patients who have received at least two lines of prior platinum-containing therapy, with...
Circulating Tumor DNA in Blood May Predict Recurrence in Patients With Diffuse Large B-Cell Lymphoma
A study assessing whether circulating tumor DNA encoding the clonal immunoglobulin gene sequence could be detected in the serum of patients with diffuse large B-cell lymphoma has found that surveillance circulating tumor DNA enabled detection of microscopic disease before it could be seen on CT...
No Improvement in Complete Remission Rate With Cytarabine Plus Amonafide L-Malate vs Daunorubicin in Secondary AML
In a phase III trial reported in the Journal of Clinical Oncology, Stone et al found that the combination of cytarabine and amonafide L-malate, a DNA intercalator and non–ATP-dependent topoisomerase II inhibitor, did not improve complete remission rate compared with cytarabine plus...
Genome-Wide CRISPR Screen Provides Better Understanding of Tumor Evolution and Metastasis
Scientists from the Broad Institute and the Koch Institute for Integrative Cancer Research at MIT used CRISPR-Cas9 gene-editing technology to “knock out,” or turn off, all genes across the genome systematically in a mouse model of non–small cell lung cancer cells and then tested...
EGFR L858R Mutation in Circulating Free DNA From Blood Samples of Patients With Non–Small Cell Lung Cancer Shown to Be Negative Prognostic Marker
Using a novel polymerase chain reaction assay “to efficiently assess” epidermal growth factor receptor (EGFR) mutations in circulating free DNA (cfDNA) from blood samples of patients with advanced non–small cell lung cancer (NSCLC), the Spanish Lung Cancer Group has “shown...
Researchers Map Genomic Landscape of Childhood Adrenocortical Tumors for the First Time
In an advance that could lead to better identification of malignant pediatric adrenocortical tumors, and ultimately to better treatment, researchers have mapped the genomic landscape of these rare childhood tumors. Their genomic mapping has revealed unprecedented details, not only of the aberrant...
Inherited Gene Variation Leaves Young Leukemia Patients at Risk for Peripheral Neuropathy
St. Jude Children’s Research Hospital scientists have identified the first genetic variation that is associated with an increased risk and severity of peripheral neuropathy following treatment with a widely used anticancer drug. Investigators also found evidence of how it may be possible to...
Early Study Shows Cabazitaxel May Be More Effective Than Docetaxel in Some Patients With Advanced Prostate Cancer
In a new study reported by de Leeuw et al in Clinical Cancer Research, researchers found that the novel taxane cabazitaxel (Jevtana) has properties that could make it more effective than docetaxel in some patients with advanced prostate cancer. This hypothesis is currently being tested in a phase...
Adding Cetuximab to First-Line FOLFIRI Does Not Benefit Metastatic Colorectal Cancer Patients With RAS Mutations
The phase III CRYSTAL trial showed that the addition of cetuximab (Erbitux) to first-line FOLFIRI (fluorouracil, leucovorin, and irinotecan) significantly improved overall survival, progression-free survival, and objective response rates in patients with KRAS codon 12/13 (exon 2) wild-type...
Early Study Suggests Olaparib May Be Effective in Ovarian Cancers Expressing High Levels of POLQ
Last December, the U.S. Food and Drug Administration (FDA) approved olaparib (Lynparza) in the treatment of advanced ovarian cancer in women with BRCA1 or BRCA2 gene mutations. Now, a laboratory study by Ceccaldi et al has found that the drug may also be effective in breast and ovarian tumors that...
Scientists Identify Genetic Variations Linked to Treatment-Related Hearing Loss in Young Patients With Cancer
Using a genome-wide associated study approach, researchers have identified inherited genetic variations in the ACYP2 gene that were linked to as much as a fourfold greater risk of rapid hearing loss in young patients with newly diagnosed brain tumors treated with cisplatin chemotherapy. The study...
