A new study by Rice Univ. biophysicists offers the most comprehensive picture yet of the molecular-level action of melittin, the principal toxin in bee venom. The research could aid in the development of new drugs that use a similar mechanism as melittin’s to attack cancer and bacteria.
Researchers at the Univ. of Georgia are developing a new treatment technique that uses nanoparticles to reprogram immune cells so they are able to recognize and attack cancer. The human body operates under a constant state of martial law. Chief among the enforcers charged with maintaining order is the immune system. The immune system is good at its job, but it's not perfect.
A recent invention at Purdue Univ. could improve therapy selection for personalized cancer care. Researchers have created a technique called BioDynamic Imaging that measures the activity inside cancer biopsies, or samples of cells. It allows technicians to assess the efficacy of drug combinations, called regimens, on personal cancers.
Shares of Immunomedics jumped Wednesday after announcing that its treatment for a type of non-Hodgkin lymphoma helped to extend the lives of patients that used it in combination with another drug. The company said patients with newly diagnosed follicular lymphoma responded well to a combination of its epratuzumab and Roche's drug, Rituxan.
A hallmark of cancer is uncontrolled and sustained cell division. One particular overactive protein, STAT3, is implicated in this malfunction. Scientists have recently discovered a complex mechanism that regulates this protein’s activity in healthy cells.
For cancer patients, it’s not the primary tumor that is deadly, but the spread or “metastasis” of cancer cells from the primary tumor to secondary locations throughout the body that is the problem. That’s why a major focus of contemporary cancer research is how to stop or fight metastasis. Studies suggest that metastasizing cancer cells undergo a major molecular change when they leave the primary tumor—a process called EMT.
Some 60 years ago, a doctor in Baltimore removed cancer cells from a poor black patient named Henrietta Lacks without her knowledge or consent. Those cells eventually helped lead to a multitude of medical treatments and lay the groundwork for the multibillion-dollar biotech industry. Now, for the first time, the Lacks family has been given a say over at least some research involving her cells.
Stem cell therapy is in its infancy, but has the potential to change the way we treat cancer and other diseases by replacing damaged or diseased cells with healthy ones. Identifying the right cells to use is the challenge, and scientists in the U.K. have found a way to use gold nanoprobes with surface enhanced Raman spectroscopy to differentiate the nearly identical cells.
Reaching a clinic in time to receive an early diagnosis for cancer—when the disease is most treatable—is a global problem. And now a team of Chinese researchers proposes a global solution: have a user-friendly diagnostic device travel to the patient, anywhere in the world.
A research team at the National Institute for Materials Science in Japan has developed a new nanofiber mesh which is capable of simultaneously performing thermotherapy and chemotherapy of tumors. Using this new mesh, the team succeeded in efficiently inducing natural death of epithelial cancer cells.
Evidence is mounting that the development and spread of cancer, long attributed to gene expression and chemical signaling gone awry, involves a biomechanical component as well. Researchers at Lawrence Berkeley National Laboratory have added to this body of evidence by demonstrating that the malignant activity of a critical cellular protein system can arise from what essentially are protein traffic jams.
Scientists at the University of California, San Diego have designed tiny spherical particles to float easily through the bloodstream after injection, then assemble into a durable scaffold within diseased tissue. An enzyme produced by a specific type of tumor can trigger the transformation of the spheres into net-like structures that accumulate at the site of a cancer.
Scientists in Missouri have successfully created nanoparticles made of a radioactive form of the element lutetium. By covering these particles with gold shells and attaching targeting agents, they have a tool that can seek out dangerous secondary lymphoma tumors. They recently demonstrated the nanoparticles can find the tumors without attaching to or damaging healthy cells.
The University of Chicago has recently launched the first secure cloud-based computing system that enables researchers to access and analyze human genomic cancer information, such as the The Cancer Genome Atlas, without the costly and cumbersome infrastructure normally needed to download and store massive amounts of data.
Aerospace conglomerate United Technologies Corp. says it's donated $3 million to establish an endowed professorship at the Yale Cancer Center in New Haven. Lieping Chen will be the first United Technologies Corp. Professor in Cancer Research and is known for research leading to clinical trials of new cancer drugs that harness the body's immune system to fight cancer.
When cells suffer too much DNA damage, they are usually forced to undergo programmed cell death, or apoptosis. However, cancer cells often ignore these signals, flourishing even after chemotherapy drugs have ravaged their DNA. A new finding may offer a way to overcome that resistance: A team has identified a key protein involved in an alternative death pathway known as programmed necrosis.
Cancer patients could face high costs for medications under President Barack Obama's health care law, industry analysts and advocates warn. Where you live could make a huge difference in what you'll pay. To try to keep premiums low, some states are allowing insurers to charge patients a hefty share of the cost for expensive medications used to treat cancer, multiple sclerosis, rheumatoid arthritis, and other life-altering chronic diseases.
Eli Lilly and Co. said Friday it will stop development of an experimental cancer drug after it failed in a late-stage clinical trial. The company was studying enzastaurin as a treatment for diffuse large B-cell lymphoma, a cancer that affects a type of white blood cell. Lilly said patients who were treated with enzastaurin did not survive longer than patients treated with a placebo.
Like picking a career or a movie, cells have to make decisions—and cancer results from cells making wrong decisions. At the cellular level, wrong decisions can be made right. A team has discovered that colon cancer stem cells, a particularly malignant population of cancer cells, are able to switch between the decision to proliferate or to remain constant—and this “switch” is controlled by a little-studied molecule called microRNA.
Researchers at Washington University in St. Louis, using powerful algorithms developed by computer scientists at Brown University, have assembled the most complete genetic profile yet of acute myeloid leukemia, an aggressive form of blood cancer.
Cancer cells are wily, well-traveled adversaries, constantly side-stepping treatments to stop their spread. But, for the first time, scientists at the University of Michigan have decoded the molecular chatter that ramps certain cancer cells into overdrive and can cause tumors to metastasize throughout the body.
Researchers at the University of Illinois have identified biomarkers that can be used to determine ovarian cancer survival and recurrence, and have shown how these biomarkers interact with each other to affect these outcomes. The team used data from the Cancer Genome Atlas, which contains information about ovarian cancer patients’ age, survival, cancer recurrence, treatment, tumor stage, tumor grade, and genomic expression.
To get a better understanding of metastasis, more than 95 graduate students, post docs and professors in a variety of laboratories across the U.S. subjected two cell lines to a battery of tests and measurements using more than 20 different techniques. The work has enabled a comprehensive cataloging and comparison of the physical characteristics of non-malignant and metastatic cells.
Cancer cells that can break out of a tumor and invade other organs are more aggressive and nimble than nonmalignant cells, according to a new multi-institutional nationwide study. These cells exert greater force on their environment and can more easily maneuver small spaces.
Doctors have begun to categorize breast cancers into four main groups according to the genetic makeup of the cancer cells. Which category a cancer falls into generally determines the best method of treatment. But cancers in one of the four groups—called "basal-like" or "triple-negative" breast cancer (TNBC)—have been particularly tricky to treat. Researchers have developed a potential treatment for TNBC that uses nanodiamonds.