These modifications contribute to a tumor's ability to grow indefinitely, as well as
making tumor cells drug resistant and capable of surviving treatments intended to kill them.
«What we may be looking at,» he adds, «is a future way to prevent metastasis to many organs simultaneously» using drugs that
make tumor cells let go of the blood vessels they cling to.
«Therefore, inhibiting NF - kB will might
make tumor cells more vulnerable to elimination by the immune system.»
The new study revealed that pancreatic cancer cells not only send signals that make macrophages produce abnormal amounts of dectin - 1 surface receptors, but also
that make tumor cells themselves express high levels of galectin - 9.
Nguyen is developing ways to guide surgeons during tumor removal surgery by using fluorescent compounds to
make tumor cells — and just tumor cells — glow during surgery, which helps surgeons perform successful operations and get more of the cancer out of the body.
Not exact matches
Delano said a previous doctor told him the bump was a lipoma — a harmless
tumor made of fat
cells.
As a cancer researcher, do you think the mechanisms of
tumor growth are somehow changing to come into line with your perceptions, or is it possible that the process of our learning more about DNA mutations and
cell architecture and nutrient exchange and epigenetic effects
make it possible for us to inch ever closer to understanding that which is already going on under our noses?
This
makes me happy: Microglia
cells migrate into
tumors and supply cancer
cells with a substance needed for the repair of DNA damage.
Prior to the development of a fully functioning nervous system, and the activation of said system, a human embryo is «alive» in the same sense a
tumor is «alive»: the individual
cells that
make it up are alive, but there is no higher - level functionality.
You need to stop immediately on the side with the
tumor, in case rogue cancer
cells make it into your daughter's body, and then gradually stop on the other side.»
Introducing human prostate cancer
cell lines into mice, Wu and his colleagues saw a particular enzyme called MAOA activate a cascade of signals that
made it easier for
tumor cells to invade and grow in bone.
A successful test would therefore require isolating enough of these scarce
cells to
make statistically valid inferences about the
tumor, often at a stage when the
tumor itself is growing and changing rapidly.
A route used by
tumor cells to spread could be exploited to
make stem
cells for regenerative medicine and cancer therapies
Opioids also may
make blood vessels leaky,
making tissues more receptive to cancer
cells looking for places to build a
tumor, Moss says.
Researchers used tissue and blood samples to show that the gammopathy (a precursor to myeloma) in both mice and patients with Gaucher disease is triggered by specific lipids, and that the antibodies
made by
tumor cells in nearly a third of myeloma patients are directed against such lipids.
T
cells genetically engineered to
make the chimeric antigen receptor can recognize and target
tumor cells.
These might
make a
cell hardier in a foreign environment — say, when a breast
cell relocates to bone — or more able to escape the primary
tumor and survive while rushed through the bloodstream.
The personalized vaccine is
made from patients» own immune
cells, which are exposed in the laboratory to the contents of the patients»
tumor cells, and then injected into the patients to initiate a wider immune response.
But, counter-intuitively, this mass
cell death might be the very thing that
makes the animals so long - lived: it could be a natural mechanism their bodies use to clear precancerous
cells, stopping
tumors in their tracks.
In mice with pancreatic
tumors, Kalbasi and other members of the team found relatively high levels of inflammatory compounds including CCL2, the signaling molecule that activates CCR2 on monocytes and macrophages to
make these
cells migrate to
tumors.
Using
tumor samples from a patient, they do lab tests to determine which substances can first
make the different types of cancer
cells uniform and then effectively kill them.
The team has given the new protein a name: HAMLET for Human Alpha - lactalbumin
Made LEthal to
Tumor cells (appropriate for a Scandinavian hero that alters its nature to take lethal action).
Ruggero has for several years been probing the ability of
tumor cells to
make extraordinary amounts of protein to sustain their rapid growth and immortality.
In this study, we found that chloroquine not only has an effect on the growth of the cancer
cells, but also
makes the
tumor environment less aggressive by normalizing the abnormal blood vessels in the
tumor,» says Patrizia Agostinis.
«Our study sought to understand what happens to
make those growth - plate cartilage
cells remain, and this work will ultimately be used to determine what causes those benign
tumors to become malignant.»
The initial experiments
made use of cancer
cells that Quiñones - Hinojosa and his team removed from willing patients and grew in the laboratory until they formed little spheres of
cells, termed oncospheres, likely to be the most resistant to chemotherapy and radiation, and capable of creating new
tumors.
Scientists at Barrow Neurological Institute have recently
made discoveries about use of a new technology for imaging brain
tumors in the operating room — a finding that could have important implications for identifying and locating invading
cells at the edge of a brain
tumor.
«One of the major and immediate downstream effects of myc activation is a dramatic increase in the capacity of affected
cells to
make protein,» Ruggero said «This, in turn, leads to increased
cell survival and proliferation, and to unstable genomes that foster additional mutations that turn these abnormal
cells into
tumor cells.»
A team of researchers led by Julie Y. Djeu, Ph.D., associate center director of education and training at Moffitt, discovered that TGF - β produced by
tumor cells causes NK
cells to
make high levels of a molecule called microRNA - 183 (miR - 183).
There are as many as 14, but the scientists found that cyclin D adds just a single phosphate at one, and only one, of the 14 locations during the early G1 phase of
cell cycle progression, essentially
make 14 different versions of the Rb
tumor suppressor.
A mutation that helps
make cells immortal is critical to the development of a
tumor, but new research at the University of California, Berkeley suggests that becoming immortal is a more complicated process than originally thought.
To
make the vaccine, cancer
cells are harvested from a
tumor after surgery and stripped of their proteins; then those proteins are cultured with dendritic
cells, a subclass of white blood
cells, drawn from the patient's blood.
«Our test should
make it possible to find drug combinations that kill ALL the cancerous
cells in a
tumor,» Skala said.
If metastatic cancers are most often
made up of
cells with different genetic drivers, perhaps researchers should be targeting the primary
tumor with multiple drugs to contain the cancer.
Metastasis, or cancer spread by the formation of
tumors at new sites, is generally what
makes cancers deadly because surgery and other treatments are unlikely to find and destroy every cancer
cell.
CCL5 attracts
tumor cells to the lungs and lymph nodes, and VEGF increases the number of blood vessels and
makes them more porous, allowing
tumor cells to metastasize and infiltrate the lungs.
For
tumors to grow and spread, cancer
cells must
make larger than normal amounts of nucleic acids and protein, so they can replicate themselves.
Glioblastoma is the most lethal form of primary brain
tumor and leads to death in patients by invading the brain tissue in a process that allows single
cells to move through normal brain tissue, which
makes complete surgical removal of the
tumor impossible.
So
making cells in the primary
tumor softer might be a way to prevent metastasis,» he said.
«We believe the
cells lacking myoferlin are
made softer in the
tumor so they can't physically detach away.
The
cells also might react by
making fewer receptors, which may
make the prostate
tumor cells vulnerable once more to androgen deprivation therapy.
The stem
cell model says that
tumor growth is more hierarchical, mainly driven by a subset of
cells that can
make new copies of themselves and give rise to the other
cell types the
tumor contains.
Treating the smoldering embers that surround the
tumor rather than just mutant
cells could
make cancer a disease we can live with.
«Beta blockers may lead to new novel triple negative breast cancer treatments: New research suggests that adrenaline can act on
tumor cells via a
cell surface receptor called the beta2 - adrenoceptor and that changes in signaling within the
cell make it highly invasive.»
Researchers are creating organoids from
tumor cells to mimic cancers and introducing specific mutations into organoids
made from healthy tissue to study how cancer arises.
The authors said their results, which they have
made publicly available, constitute an invaluable resource to help clinicians predict which chemotherapies will be most effective against
tumor cells with particular genetic mutations, and how to rationally combine therapies to prevent cancers from developing resistance.
«The finding that certain
cell signaling lipids change the activity of an oncogenic Ras protein, suggests that we might be able to interfere with
tumor progression by inhibiting the enzymes which
make the specific
cell signaling lipid in
cells,» Buck said.
However,
tumors are
made up of a variety of different
cell types, and it has been unclear whether photodynamic detection identifies all of them.
Although other
tumor suppressors exist, what
makes Par - 4 so special is that it is not mutated as frequently as other known suppressors, and it's «selective» in its actions in that Par - 4 will only kill cancer
cells and not normal
cells.
Genetically modified Salmonella bacteria target
tumors and
make the immune system extra aggressive toward cancer
cells.