Biology of Cancer - Cancer Currents Blog
Cancer biology research news, with context from experts at NCI and elsewhere. Topics include cancer metastasis, the tumor microenvironment, and new targets for cancer therapies.
- Fusobacterium May Help Colorectal Cancer Grow and Spread
Fusobacterium, found in the stomach and intestines, may help fuel the growth of colorectal cancer and metastases. In a mouse model of colorectal cancer, using antibiotics to kill these bacteria slowed tumor growth.
- With Advances in Cancer Immunotherapy, Scientists Discuss Need to Develop New Mouse Models
A recent NCI symposium focused on developing new and better mouse models for testing treatments that harness the immune system against cancer.
- Many Ovarian Cancers May Start in Fallopian Tubes, Study Finds
A new study provides more evidence that the most common form of ovarian cancer may originate in the fallopian tubes, and that there is a window of nearly 7 years between development of fallopian tube lesions and the start of ovarian cancer.
- Alternate Driver of Treatment-Resistant Prostate Cancer Identified
Researchers have identified an emerging subtype of metastatic prostate cancer that is resistant to therapies that block hormones that fuel the disease.
- Study Tracks the Evolution of Treatment Resistance in Metastatic Breast Cancer
A new study suggests that the cells in treatment-resistant tumors in women with metastatic breast cancer share important characteristics that could potentially make tumors vulnerable to therapies that otherwise might not have been considered.
- Levels of Immune Cells within Ovarian Tumors Linked to Survival for Some Patients
A large international study suggests that the presence of certain immune cells within the tumors of some patients with ovarian cancer are associated with improved survival.
- Study Uses Open Data to Analyze “Normal” Tissue Near Tumors
The tissue immediately surrounding a tumor may not be normal, even if it appears normal under the microscope, according to an analysis of data from two genomic databases.
- Study Identifies Crucial Characteristic of High-Risk HPV
By comparing the genomes of women infected with a high-risk type of human papillomavirus (HPV), researchers have found that a precise DNA sequence of a viral gene is associated with cervical cancer.
- Timing and Sequence Critical for Immunotherapy Combination
When given at the same time, two immune checkpoint inhibitors were ineffective against breast cancer growth in mice, a new study found. The combination was more effective and safer if the two inhibitors were given in a specific sequence.
- Study Uncovers Previously Unrecognized Effect of Chemotherapy
A new study conducted primarily in mice suggests that chemotherapy given before surgery for breast cancer can cause changes in cells in and around the tumor that are tied to an increased risk of the cancer spreading to other areas of the body.
- Cancer Researchers Report Progress in Studying Exceptional Responders
Researchers who study exceptional responders—patients who have dramatic and long-lasting responses to treatments for cancer that were not effective for most similar patients—met recently to discuss the state of the science in this emerging field.
- Genomic Study Seeks Clues to Help Explain Breast Cancer Disparities
Using one of the largest collections of tumor samples from African Americans with breast cancer, researchers tried to assess the extent to which the molecular characteristics on these tumors might help to explain breast cancer disparities.
- PARP Inhibitors May Be Effective in Brain, Other Cancers with IDH Mutations
Studies presented at the 2017 AACR annual meeting suggest that therapies which take advantage of the mutations in the IDH gene may be more effective than drugs that block it.
- Studies Identify Potential Treatment Strategies for Pediatric DIPG Brain Tumors
Two studies have identified proteins that drive growth of diffuse intrinsic pontine glioma (DIPG) tumor cells. Blocking these targets with investigational drugs slowed tumor growth in animal models.
- Conditional Reprogramming: An Interview with Dr. Richard Schlegel on Growing Cancer Cells
Dr. Richard Schlegel describes an innovative cell culture technique he helped to develop. Called conditional reprogramming, the technique can be used to rapidly establish cell cultures of normal and tumor cells from patient samples.
- Potential New Cancer Therapy Could Target Tumors Two Ways
A team of researchers has developed a potential new therapy that may work in two distinct ways to attack tumors, by directly killing cancer cells and immune cells that can suppress the anti-cancer immune response.
- Genome Study Points to New Subtypes of Esophageal Cancer
A new study by The Cancer Genome Atlas Research Network could help classify esophageal cancers according to their genetic and molecular alterations and identify potential new treatment options.
- New Mouse Model Closely Mimics Most Common Leukemia in Infants
Researchers have created a long-sought-after mouse model for an aggressive form of acute lymphoblastic leukemia that occurs commonly in infants and that the researchers believe can accelerate the development of new therapies for the disease.
- Brain Cancer’s Cholesterol Addiction May Offer New Treatment Strategy
Brain cancer cells are heavily dependent on a constant supply of cholesterol to survive, a new study suggests. And in mice with brain tumors, treatment with a cholesterol-depleting drug slowed tumor growth and improved survival.
- Single Tumor Cells Reveal Clues to Biology of Multiple Myeloma
A study suggests that individual tumor cells circulating in the blood of patients with multiple myeloma may be a new source of information about the genetic changes driving the disease.
- Scientists Identify Potential Marker of Resistance to PARP Inhibitors
Findings from a new study from NCI researchers could help predict whether a tumor will respond to a new class of promising cancer drugs, and identifies a potential way to overcome that resistance.
- ‘Unexpected’ Vulnerability Creates Treatment Opportunity in Aggressive Type of Lung Cancer
A new study has identified a potentially critical vulnerability in lung cancers that have mutations in the KRAS gene, and showed that a drug already under study may be able to exploit it.
- DINO RNA Molecule Triggers Anticancer Response in Damaged Cells
Studies in cells and mice found that, in cells with damaged DNA, a noncoding RNA called DINO stabilizes the p53 protein and guides the cells into cell death, preventing tumor development.
- Metabolomics Study Reveals another Energy Source for Cancer Cells
Researchers have found that cancer cells can use the compound lactate to fuel biochemical reactions and to generate other compounds they need for growth and survival.
- Studies Highlight Potential of Targeting HIF-2 in Kidney Cancer
Two new studies suggest that a new class of drugs can effectively target a molecular driver of the most common type of kidney cancer.
- Chromosomal Instability Score May Predict Response to Cancer Treatment
A new study suggests that a chromosomal instability score may help guide treatment choices for patients with cancer.
- Pancreatic Cancer Cells May Obtain Nutrients from Neighboring Cells
Pancreatic cancer cells instruct healthy cells around them to provide nutrients they need to survive and grow, a new study suggests.
- Engineered Stem Cells Help Identify Potential New Treatment for Medulloblastoma
Stem cells engineered to mimic medulloblastoma development may help researchers identify potential new treatments, according to a new study.
- Nanoparticle Delivers Cancer Drugs to Tumor Blood Vessels
In cancer mouse models, nanoparticles that bind to a protein called P-selectin on tumor blood vessels shrank tumors and extended survival.
- Inherited Mutations in DNA-Repair Genes Found in Advanced Prostate Cancers
Researchers estimate that nearly 12% of men with advanced prostate cancer have inherited mutations in genes that play a role in repairing damaged DNA.
- 3-D View of Mutations May Identify Potential Targets for Cancer Drugs
A new 3-D modeling tool may help identify mutations in cancer cells that could be targeted with new or existing drugs, a new study suggests.
- Mouse Study Illuminates the Spread of Breast Cancer to Bone
Researchers have identified proteins that may regulate the movement of breast cancer cells into and out of bone marrow.
- Patient-Derived Antibody Appears to Selectively Target Tumor Cells, Spur Immune Attack
The CFH antibodies killed tumor cells in cell lines of several cancer types and slowed tumor growth in mouse models of brain and lung cancer, without evidence of side effects.
- Crosstalk between Cancer Cells and Neighboring Cells May Contribute to Tumor Growth
Pancreatic cancer cells and neighboring normal cells engage in a two-way molecular conversation that helps drive malignant behavior in the cancer cells, according to new study results.
- New Treatment Target Identified for Diffuse Large B-Cell Lymphoma
NCI researchers have identified new therapeutic targets for diffuse large B-cell lymphoma. Drugs that hit these targets are under clinical development and the researchers hope to begin testing them in clinical trials of patients with DLBCL.
- New Treatment Target Identified for Key Prostate Cancer Driver
Researchers have identified a potential alternative approach to blocking a key molecular driver of an advanced form of prostate cancer, called androgen-independent or castration-resistant prostate cancer.
- Vitamin D Deficiency May Promote Spread of Some Breast Cancers
Low vitamin D levels are associated with metastasis in women with breast cancer, suggests a new study.
- High-Magnification Microscopy Visualizes Tumor Blood Vessels in Real Time
High-powered intravital microscopy reveals that 50 percent of blood vessels in melanoma tumors do not have any blood flow, according to a new study.
- Study of Cancer’s Origins Reveals Genetic Reprogramming of Single Cells
Researchers have used a new zebrafish model of cancer to characterize the early genetic changes associated with the initiation of tumors.
- Prospective Study Links HPV Detection in the Mouth to Head and Neck Cancer
A new study confirms that infection with HPV 16 precedes the development of head and neck cancer.
- Mouse Study Points to Mechanism Linking Obesity and Colorectal Cancer Risk
A missing hormone in obese mice may help explain a longstanding association between obesity and an increased risk of colorectal cancer in humans.
- Novel Treatment Approach Shrinks Ovarian Tumors in Mice
Researchers have developed a new approach for treating tumors that express mutant versions of the p53 protein, which are present in more than half of all cancers, including an aggressive and common subtype of ovarian cancer.
- Two Small RNAs, Often Missing from Cancer Cells, May Suppress Tumors
Two small RNAs that are frequently deleted from cancer cells may help suppress tumors by interacting with RAS proteins, a new study suggests.
- Study Sheds Light on Role of Inherited Mutations in Childhood Cancer
In the most comprehensive study of its kind conducted to date, more than 8 percent of children with cancer were found to have inherited genetic mutations associated with a predisposition to the disease.
- Antioxidants Accelerate the Growth and Invasiveness of Tumors in Mice
Metastatic tumor cells are particularly sensitive to oxidative stress, and antioxidant supplementation increases their ability to grow and metastasize.
- Study Identifies New Opportunities for Targeted Immunotherapy
A team of NCI researchers has reported that several types of gastrointestinal cancer have tumor-specific mutations that can be recognized by the immune system, thereby offering a new therapeutic opportunity for patients with these tumors.