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Showing 2051 - 2100Analysis of Key Breast Cancer Genes Reveals Distinct Profiles for African American, European American Women
Researchers at Roswell Park Cancer Institute (RPCI) have uncovered new information that may begin to explain why many African American women are more likely to be diagnosed with aggressive, often deadly forms of breast cancer. Their findings also strengthen evidence that increased dietary folate...
Study Identifies New Pathway for Stalling BRCA-Mutated Tumor Growth in Mice and Human Cells
Inhibiting the action of a particular enzyme dramatically slows the growth of tumor cells tied to BRCA1 and BRCA2 genetic mutations that are closely tied to breast and ovarian cancers, according to researchers at New York University (NYU) Langone Medical Center. Senior investigator Agnel Sfeir,...
Study Sheds New Light on Syndrome Associated With Aggressive Pediatric Cancer
A new study involving researchers at The University of Nottingham has revealed how children with an aggressive cancer predisposition syndrome experience a never-before- seen flood of mutations in their disease in very short periods of time. The findings were published by Shlien et al in Nature...
Inherited Gene Variation Helps Explain Drug Toxicity in ALL Patients of East Asian Ancestry
Scientists at St. Jude Children's Research Hospital have discovered about 10% of young leukemia patients of East Asian ancestry inherit a gene variation that is associated with reduced tolerance of a drug that is indispensable for curing acute lymphoblastic leukemia (ALL), the most common childhood ...
Age-Related Clonal Hematopoiesis Associated With Increased Risk of All-Cause Mortality, Heart Disease, and Stroke, as Well as Blood Cancer
In a study reported in The New England Journal of Medicine, Jaiswal et al found somatic mutations associated with hematologic cancers at increasing frequency with increasing age, with presence of the mutations being associated with increased risk of hematologic cancers, all-cause mortality,...
Clonal Hematopoiesis With Somatic Mutations Increases With Age and Increases Risk of Hematologic Cancer and Mortality
In a study reported in The New England Journal of Medicine, Genovese et al found that clonal hematopoiesis with somatic mutations is increasingly common with greater age and is associated with increased risk of hematologic cancer. The presence of such clonal hematopoiesis in apparently healthy...
Researchers Identify Potential Treatment Targeting Proliferation Pathway in Some Aggressive Tumors
Researchers from the Massachusetts General Hospital (MGH) Cancer Center and Boston University School of Medicine (BUSM) have identified a potential treatment targeting a pathway by which several aggressive tumors maintain their ability to proliferate, according to a study by Flynn et al published...
TP53 Mutations May Play a Role in Treatment‑Related Acute Myeloid Leukemia and Myelodysplastic Syndrome
A genomic study of cancer patients previously treated with chemotherapy or radiation therapy found that TP53 mutations may play a role in the development of treatment-related acute myeloid leukemia (AML) and myelodysplastic syndrome, according to a report by Wong et al in Nature. However, the...
ATRX Mutation Linked to Brain and Pancreatic Neuroendocrine Tumors May Be Biomarker for Rare Adrenal Tumors
A somatic mutation in the ATRX gene has recently been identified as a potential molecular marker for gliomas, neuroblastomas, and pancreatic neuroendocrine tumors. Now, researchers at the Perelman School of Medicine at the University of Pennsylvania have found that the same mutated gene may serve...
ASCO Endorses ESMO Guideline on Hereditary Colorectal Cancer Syndromes
Approximately 5% to 6% of cases of colorectal cancer are associated with germline mutations conferring an inherited predisposition for disease. As reported by Stoffel et al in the Journal of Clinical Oncology, ASCO has endorsed, with qualifying statements, the European Society for Medical Oncology...
Scientists Discover the Role of Gene Mutations Involved in 75% of Glioblastomas and Melanomas
After initiating several biophysical computational studies, researchers have identified mutations that destabilize a DNA structure that turns a gene “off.” They found that these mutations occur at four specific sites in the human telomerase reverse transcriptase (hTERT) promoter in over ...
Addition of Hypoxia-Activated Prodrug TH-302 to Gemcitabine Improves Progression-Free Survival in Advanced Pancreas Cancer
TH-302 is a hypoxia-activated prodrug that releases the DNA alkylator bromo-isophosphoramide mustard in hypoxic settings. In a phase II trial reported in the Journal of Clinical Oncology, Borad et al found that the addition of TH-302 to gemcitabine improved progression-free survival in patients...
FDA Approves Companion Diagnostic for the Detection of BRCA1/2 Mutations in Ovarian Cancer
Today’s approval by the U.S. Food and Drug Administration (FDA) of olaparib (Lynparza) occurred concurrently with that of a companion diagnostic, BRACAnalysis CDx. This genetic test is designed to detect the presence of mutations in the BRCA genes in blood samples from patients with ovarian...
FDA Approves Olaparib to Treat BRCA-Mutated Advanced Ovarian Cancer
The U.S. Food and Drug Administration (FDA) today granted accelerated approval to olaparib (Lynparza) for women with advanced ovarian cancer with deleterious or suspected deleterious germline BRCA-mutated advanced ovarian cancer, as detected by an FDA-approved test, who have been treated with three ...
Targeted Next-Generation Sequencing Reveals a High Number of Genomic Mutations in Advanced Malignant Plural Mesothelioma
Next-generation sequencing in malignant pleural mesothelioma tumors shows a complex mutational setting with a high number of genetic alterations in genes involved in DNA repair, cell survival, and cell proliferation pathways, according to a study by Lo Iacono et al in the Journal of Thoracic...
Germline SUFU Mutations Cause Gorlin Syndrome and Increase Risk for Childhood Medulloblastoma
In a study to identify causative mutations in patients with Gorlin syndrome without PTCH1 mutations, Smith et al found that germline mutations in SUFU were associated with Gorlin syndrome and with increased likelihood of Gorlin syndrome–associated childhood medulloblastoma. The study is...
DNA Vaccine Targeting Mammaglobin-A Produces Robust Immune Response in Metastatic Breast Cancer
In a phase I study, a DNA vaccine targeting the breast cancer–associated antigen mammaglobin-A (MAM-A) was found to be safe and effective in eliciting immune responses in women with metastatic breast cancer. Preliminary evidence also suggests that the vaccine improved progression-free...
Addition of Vosaroxin to Cytarabine Demonstrates Antileukemic Activity in Relapsed or Refractory Acute Myeloid Leukemia
In a phase Ib/II study of patients with relapsed or refractory acute myeloid leukemia (AML), the addition of vosaroxin to cytarabine demonstrated antileukemic activity and an acceptable risk-benefit profile, according to a study by Lancet et al in Haematologica. Based on the findings from this...
Researchers Identify Biomarker of Response to New Ovarian Cancer Drug
Researchers have found a way to identify which ovarian cancer patients are likely to respond well to a new anticancer drug called rucaparib. Previous clinical trials have shown that women with platinum-sensitive tumors with BRCA1/2 mutations respond well to rucaparib. In new findings presented...
Interactions Between Genetic Variants and Sun Behaviors May Influence Future Melanoma Risk
The combination of different patterns of sun exposure experienced by children and biomarkers of melanoma risk, such as the number of freckles or moles that develop as a result, may play a large role in future melanoma risk, a study investigating gene and environmental interactions has found....
No Benefit of Adding Iniparib to Gemcitabine/Carboplatin in Metastatic Triple‑Negative Breast Cancer
In a phase III trial reported in the Journal of Clinical Oncology, O’Shaughnessy et al found that the addition of iniparib to gemcitabine and carboplatin did not improve overall survival or progression-free survival in patients with metastatic triple-negative breast cancer. An exploratory...
Olaparib Treatment Yields Promising Response Rates in Patients With BRCA Mutation–Associated Cancers
Olaparib, an experimental twice-daily oral cancer drug, produced an overall tumor response rate of 26% in several advanced cancers associated with BRCA1 and BRCA2 mutations, according to a phase II study reported by Kaufman et al in the Journal of Clinical Oncology. The positive response provides...
High Rate of Hepatitis B Reactivation in Chinese Patients Receiving Rituximab for Lymphoma
In a prospective Chinese study reported in the Journal of Clinical Oncology, Seto et al found a 2-year rate of hepatitis B virus (HBV) reactivation of 41.5% in hepatitis B surface antigen (HBsAg)-negative and anti–hepatitis B core antigen antibody (anti-HBc)–positive patients receiving...
Molecular Tumor Markers Could Reveal New Therapeutic Targets for Lung Cancer Treatment
Analysis of 607 small cell lung cancer (SCLC) tumors and neuroendocrine tumors identified common molecular markers among both groups that could reveal new therapeutic targets for patients with similar types of lung cancer, according to research presented at the 2014 Chicago Multidisciplinary...
New Research Shows Association of Kidney Cancer With Use of Aristolochic Acid
New research by the international Cancer Genomics of the Kidney consortium (CAGEKID) reveals an important connection between kidney cancer and exposure to aristolochic acid, an ingredient in some herbal remedies. The findings, published by Scelo et al in Nature Communications, have important...
CD19-Directed CAR T Cells Produce Sustained Remission in Relapsed/Refractory ALL
In a study reported in The New England Journal of Medicine, Maude et al reported achieving sustained remissions in children and adults with relapsed/refractory acute lymphoblastic leukemia (ALL) using autologous CD19-targeted chimeric antigen receptor (CAR)-modified T cells. Study Details In the...
ASCO Endorses Guideline for Molecular Testing to Select Lung Cancer Patients for EGFR and ALK Inhibitor Treatment
ASCO has endorsed the recently developed joint College of American Pathologists (CAP), International Association for the Study of Lung Cancer (IASLC), and Association of Molecular Pathologists (AMP) guideline on molecular testing for selection of patients with lung cancer for EGFR and ALK inhibitor ...
New Mutations Found in Anaplastic Thyroid Cancer Lead to Dramatic Response and Acquired Resistance to Everolimus
A study involving a patient with metastatic anaplastic thyroid cancer who achieved a near-complete response to everolimus (Afinitor) that lasted for 18 months, followed by progressive disease, has revealed a previously unknown mutation in the TSC2 gene and in the mTOR protein. The discovery...
Little Molecular Difference and No Prognostic Effect of Clinical HER2 Status in Context of Intrinsic Breast Cancer Subtypes
In a study reported in the Journal of the National Cancer Institute, Prat et al found that there was little difference in downstream gene or protein expression according to intrinsic breast cancer subtypes among clinical HER2-positive vs -negative breast cancers and that clinical HER2 status did...
RNA Sequencing Could Help Doctors Tailor Unique Prostate Cancer Treatment Programs
Sequencing RNA, not just DNA, could help doctors predict how prostate cancer tumors will respond to treatment, according to research published in the journal Genome Biology. Because a tumor’s RNA shows the real-time changes a treatment is causing, the authors believe that this could be a...
High Concordance Between EGFR Mutations From Circulating-Free Tumor DNA and Tumor Tissue in NSCLC
Epidermal growth factor receptor (EGFR) mutations found in the circulating-free tumor DNA from the plasma of advanced non–small cell lung cancer (NSCLC) patients correlates well with the EGFR mutations from patient-matched tumor tissue DNA, according to new data reported by Douillard et...
Genomic Sequencing Reveals Unique Genetic Alterations in Chromophobe Renal Cell Carcinoma
An international scientific collaboration led by Baylor College of Medicine as part of The Cancer Genome Atlas initiative has revealed clues about genetic alterations that may contribute to a rare form of kidney cancer. The study, which describes the landscape of somatic genomic alterations of...
Multiple Endocrine Neoplasia Type 1 Increases Risk of Breast Cancer
In a study reported in a letter to The New England Journal of Medicine, Dreijerink et al in the International Breast Cancer in MEN1 Study Group identified a high risk of breast cancer in women with multiple endocrine neoplasia type 1 (MEN1). MEN1 is caused by germline mutations in the MEN1...
Comprehensive Molecular Profiling of Lung Adenocarcinoma
The Cancer Genome Atlas Research Network has recently reported its comprehensive molecular profiling of lung adenocarcinoma in Nature. Findings included a high rate of somatic mutations including alterations in tumor-suppressor genes, chromatin-modifying genes, and RNA-splicing genes and suggested...
FDA Approves First Noninvasive DNA Screening Test for Colorectal Cancer
The U.S. Food and Drug Administration (FDA) today approved Cologuard, the first stool-based colorectal screening test that detects the presence of red blood cells and DNA mutations that may indicate the presence of certain kinds of abnormal growths that may be cancers such as colon cancer or...
Genome-Wide Association Study Finds New Genetic Risk Markers in Pancreatic Cancer
A large DNA analysis of people with and without pancreatic cancer has identified several new genetic markers that signal increased risk of developing the highly lethal disease, reported scientists from Dana-Farber Cancer Institute. The study by Wolpin et al was published in Nature Genetics. The...
Renowned Pathologist Emmanuel Farber, MD, PhD, Dies
Cancer research lost a pioneer on August 3, 2014, with the passing of Emmanuel Farber, MD, PhD, a renowned pathologist who made fundamental contributions to our understanding of chemical carcinogenesis. Dr. Farber’s studies in experimental pathology demonstrated that chemical carcinogens are...
Blood and Saliva Tests Help Predict Recurrence of HPV-Related Oral Cancer
Physicians at Johns Hopkins have developed blood and saliva tests that help accurately predict recurrences of HPV-linked oral cancers in a substantial number of patients. The tests screen for DNA fragments of the human papillomavirus (HPV) shed from cancer cells lingering in the mouth or other...
PIK3CA Mutation Does Not Predict Outcome in Patients With Luminal Breast Cancer Receiving Endocrine Therapy
In a study reported in the Journal of Clinical Oncology, Sabine et al found that PIK3CA mutation was not an independent predictor of distant relapse-free survival among postmenopausal women with estrogen receptor–positive breast cancer receiving endocrine therapy in the TEAM (Exemestane...
Study Defines Four Molecular Subtypes of Gastric Cancer
Investigators of The Cancer Genome Atlas project have developed a molecular classification that divides gastric cancer into four major genomic subtypes, according to a study published in Nature. They include (1) tumors positive for the Epstein-Barr virus (EBV) that display recurrent PIK3CA...
Noninvasive Image Texture Analysis May Provide Tumor Heterogeneity Information With Prognostic Potential in NSCLC
Noninvasive quantitative computed tomography–based texture analysis can accurately differentiate the presence of a KRAS mutation from pan–wild-type non–small cell lung cancer (NSCLC), based on the results of a study in PLOS ONE. Weiss et al reported that this tumor heterogeneity...
Effects of Aspirin, Hormone Replacement Therapy, Smoking, and BMI on Age- and Cancer-Associated DNA Methylation in the Colon in Women
In a study reported in the Journal of the National Cancer Institute, Noreen et al found that aspirin and hormone-replacement therapy reduced age-related gene promoter DNA methylation, and smoking and high body mass index (BMI) increased methylation in the colonic mucosa in women. Similar...
Study Identifies Novel Genomic Changes in Lung Adenocarcinoma
Researchers from Dana-Farber Cancer Institute, the Broad Institute of MIT and Harvard, and other centers have identified novel mutations in a well-known cancer-causing pathway in lung adenocarcinoma, the most common subtype of lung cancer. Knowledge of these mutations could potentially identify a...
New Screening Approach Identifies Cancer Mutations in Melanoma That May Lead to More Effective Immunotherapies
Although cancer immunotherapy with adoptive transfer of tumor-infiltrating lymphocytes represents an effective treatment for patients with metastatic melanoma, the antigen targets recognized by these effective tumor-infiltrating lymphocytes remain unclear. According to a new study, a novel...
Phase III Trial Shows Improved Survival With TAS-102 in Metastatic Colorectal Cancer Refractory to Standard Therapies
The new combination agent TAS-102 can improve overall survival compared to placebo in patients whose metastatic colorectal cancer is refractory to standard therapies, researchers reported at the ESMO 16th World Congress on Gastrointestinal Cancer in Barcelona (Abstract O-0022). “Around 50%...
Diversity of Intestinal Tract Bacteria Associated With Mortality Outcomes After Stem Cell Transplant, Study Shows
New research published online in Blood suggests that the diversity of bacteria in the gastrointestinal tract of patients receiving stem cell transplants may be an important predictor of their post-transplant survival. Potential Connections Previous studies have shown that the intensive treatment...
Lung-MAP Launches: First Precision Medicine Trial From National Clinical Trials Network
A unique public-private collaboration among the National Cancer Institute (NCI), SWOG Cancer Research, Friends of Cancer Research, the Foundation for the National Institutes of Health (FNIH), five pharmaceutical companies (Amgen, Genentech, Pfizer, AstraZeneca, and AstraZeneca’s global...
Smokers With BRCA2 Mutation Have Increased Risk of Developing Lung Cancer
Around a quarter of smokers who carry a mutation in the BRCA2 gene will develop lung cancer at some point in their lifetime, a large-scale, international study reveals. Scientists described a previously unknown link between lung cancer and a particular BRCA2 mutation, which occurs in around 2% of...
Study Uses Comprehensive Genomic Tumor Testing to Match Lung Cancer Patients With Targeted Therapies
In a recent study by the Lung Cancer Mutation Consortium (LCMC), investigators incorporated tumor genotyping into therapeutic decision-making for patients with lung adenocarcinomas. An oncogenic driver was detected in 64% of tumors from patients in this study. According to data from this study...
Phase II Feasibility Study Tests Four Molecular-Based Hypotheses in Advanced Colorectal Cancer
In a phase II feasibility study (MRC FOCUS3) reported in British Journal of Cancer, Maughan et al used KRAS and BRAF mutation status and topoisomerase-1 expression status to randomly assign patients with advanced colorectal cancer to molecular hypothesis–driven treatment or control treatment. ...
