Sentences with phrase «cell tumor which»

Sadly, though, Harley's biopsy came back as a malignant spindle cell tumor which means he will have to be watched for signs of recurrence.

My dog Franklin had a series of mast cell tumors which had to be removed, and the attendant care required lengthy hospital stays, extensive cancer screening, and consultation with an oncologist to ensure the cancer had not spread.

Not exact matches

The institute, which includes over 40 laboratories and more than 300 researchers, said the research would focus on modifying a patient's own immune system T - cells to target a tumor, studying ways to boost patient response to current immunotherapy drugs.

Chicago, GenomeWeb — A new study by researchers from Memorial Sloan Kettering Cancer Center has demonstrated the predictive power of an AR - V7 protein expression test using Epic Sciences» non-EPCAM-based circulating tumor cell detection platform, which could help guide treatment decisions for men with metastatic castration - resistant prostate cancer.

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?

Strawberries also contain fisetin, which halts the growth of cancerous cells while diminishing tumors» blood supply.

These antioxidants are partly responsible for halting DNA damage, which means cancerous cells can not mutate and form tumors.

Sulforaphane (a sulphur compound) is a key compound in broccoli which has the ability to kill cancer stem cells, which slows tumor growth.

While study results indicated that combining capsaicin with the chemicals «might promote cancer cell survival,» the report clearly stated that the control group of mice treated only with capsaicin ``... did not induce any skin tumors...» In addition, the study repeatedly cited other research studies in which the anti-cancer properties of capsaicin were solidly demonstrated.

The introduction of infant formula to babies» diets changes the infants» gut microbiome, thus affecting the response of the infant immune system to pathogens.47 - 51 A greater amount of natural - killer cells, suggesting a more mature immune system, have been found in breastfed infants than in formula - fed infants.52 In addition, pH level in the stomach of breastfed children is better for the promotion of the protein - lipid α - lactalbumin (termed HAMLET), which induces apoptosislike death in tumor cells.51, 53

A heckler interrupted Vice President Joe Biden during a speech on Saturday, alleging the VP's son Beau Biden was killed by a tumor caused by radiation from cell phones, which prompted boos from the audience.

Each factor involved in the tumor response — whether it is the speed with which chemotherapeutic drugs reach the tissue or the degree to which cells signal each other to grow — is characterized by a mathematical equation that captures its essence.

However, the impact of the two methylation - regulating enzymes was still seen at 10 to 15 months, when scientists found decreased expression of hundreds of genes — many of which are key tumor suppressor genes such as BMP3, SFRP2 and GATA4 — in the smoke - exposed cells and a five - or - more-fold increase in the signaling of the KRAS oncogene that is known to be mutated in smoking - related lung cancers.

After EZH2 enzymes rise, their levels taper off, and then, the scientists found two to three-fold increases in a protein called DNMT1, which maintains DNA methylation in the «start» location of a variety of tumor suppressor genes that normally suppress cell growth.

Similarly, when these cells were injected into mice, the cells in which SLC13A5 was suppressed formed barely discernable tumors compared to the unmanipulated cancer cells.

A research team at the University of California, Riverside has discovered a way for chemotherapy drug paclitaxel to target migrating, or circulating, cancer cells, which are responsible for the development of tumor metastases.

If the tumor that Jobs had removed in 2004 had begun to break down prior to the surgery, White says, the tumor's dead cells could have released protease and lipase enzymes that may have damaged beta cells in the pancreas, which produce insulin.

In this special section of Science, expert contributors retrace the long and tortuous path leading to the mapping and identification of the BRCA1 gene; discuss the ways in which BRCA mutation status has been integrated into the clinical management of patients in high - risk families; and highlight the role of the BRCA proteins in preserving the structural and numerical integrity of chromosomes throughout the cell cycle, a function that may explain their tumor suppressor activity.

Cancer cells which arise due to genetic mutations are just such cells, and there are studies which suggest that microchimeric cells may stimulate the immune system to stem the growth of tumors.

They then tried adoptive T cell therapy (ACT), in which T cells directed against a tumor are infused into a patient.

For some years now, a new class of drugs called antibody - drug conjugates (ADCs) have been used, which work in two ways: they consist of an antibody that binds selectively to the tumor cell receptor and interrupts the signal to propagate; they also act as a transport vehicle for a chemical substance that enters the cancer cells with the antibody and triggers their death.

Lo's team set out to find ways to further weaken the tumors, since the drug addiction response (which can range from a mere slow down of the cancer's growth rate to cancer cell death), can be used to improve clinical outcomes.

Their paper, which appears in Nature Communications, describes how an immune cell recruited to the tumor induces the programmed suicide, or apoptosis, of the killer T cells harnessed by many immunotherapies.

Traditional genetic approaches together with the new wealth of genomic information for both human and model organisms open up strategies by which drugs can be profiled for their ability to selectively kill cells in a molecular context that matches those found in tumors.

Dr. Llovet and colleagues demonstrated that the expression of mutant IDH in the adult liver of genetically engineered mice impairs liver cell development and liver regeneration — a process in which the liver responds to injury — and increases the number of cells to form a tumor.

Immune cells, which were built to respond to inflammatory signals, will be naturally attracted to the tumor site.

«For this purpose we have created molecules which act as an adapter between the virus and the tumor cell,» explains Markus Schmid, first author of the study.

Prostate cancer risk groups are assigned based on the prostate biopsy results, which include the Gleason score (GS)-- an indication of how aggressively the tumor cells may behave — and the prostate specific antigen (PSA) level in the patient's blood at the time of diagnosis.

«We refer to this as the battle for the brain, in which early on in the disease, the microglia are trying to destroy the brain tumor initiating cells,» says Yong.

Although proteasome inhibitors are very efficient in selective killing of cancer tumor cells grown in a dish (in - vitro), their success in the clinic has largely been undermined by the development of resistance — mechanisms of which are poorly understood.

But following the removal of the primary tumor, micrometastatic cells learn to communicate with cells in their new microenvironment in the brain — cells which are, at first, hostile to them.

«Tumor cells often produce suppressive factors which essentially turn the brakes on tumor - killing white blood cTumor cells often produce suppressive factors which essentially turn the brakes on tumor - killing white blood ctumor - killing white blood cells.

Dr. Del Maestro adds, «Yong and colleagues at the University of Calgary have begun to unravel the complex interaction of the microglia with the brain tumor cells, resulting not only in furthering our understanding, but providing a new concept and drug which can now be immediately assessed in clinical trials.»

The researchers also used their ultrasound technique in mice to image Salmonella bacteria, which could be used to deliver cancer - killing drugs to tumor cells.

Analyzing data from thousands of cancer lines and tumors, the researchers found that those demonstrating resistance to proteasome inhibitor drugs were marked by suppressed expression of one or more of the cells» proteasome cap subunits (which are a subsets of the larger proteasome).

One advantage of this method is that it only activates a certain type of immune cell, the dendritic cell or T - cell, and only in one part of the body, near the draining lymph nodes or tumor, which helps cut down on the system - wide side effects often seen with chemotherapy.

Frequent, low - dose chemotherapy regimens avoid this effect and may therefore be more effective at treating certain types of breast and pancreatic cancer, according to the murine study «Metronomic chemotherapy prevents therapy - induced stromal activation and induction of tumor - initiating cells,» which will be published online November 23 in The Journal of Experimental Medicine.

They observed that the tumor cells that spread to the brain were able to utilize an extracellular molecule, which shields them from their hostile surroundings.

The trials pair the oral drugs lenalidomide and dexamethasone with other agents, each of which exploits a different vulnerability in tumor cells.

These findings also have implications for treatment of cancer and other disorders, such as obesity, in which M2 macrophage cells play a regulatory role in tumor growth and fat deposition.

According to this theory, tumor cells tend to «forget» the tissue from which they originated as the disease progresses, acquiring an undifferentiated phenotype associated with heightened aggressiveness and treatment resistance.

The investigators utilized a targeting method called RNA interference (RNAi) which, when delivered via these natural nanoparticles or exosomes, zero in on mutant KRAS in pancreas cancer cells, impacting tumor burden and survival in multiple pancreas cancer models.

«If we can identify the point at which tumor cells acquire the characteristics of stem cells, it will be possible to look for ways to interrupt the process and avoid progression of the disease.»

«We found that fat cells from obese or morbidly obese patients secreted a high amount of inflammatory proteins, which contributed to tumor progression,» DeCicco - Skinner said.

Researchers are also experimenting with another form of immunotherapy called adoptive cell transfer, which harvests and then reintroduces patients» tumor - infiltrating lymphocytes — cells with anti-tumor capabilities that dig deep behind enemy lines.

The scientists have shown that, in all cancers, a sort of «identity crisis» is observed in cancerous cells: in the organs or tissues in which a tumor develops, genes specific to other tissues or to other stages of the development of the organism express themselves in an aberrant manner.

The process enables some viruses to insert their genetic material into the DNA of healthy human cells, which can lead to tumors and other diseases.

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.

Women with the KRAS - variant are also more susceptible to triple - negative breast cancer, tumors whose growth is not fueled by the hormones estrogen and progesterone, or by the presence of a particular genetic mutation known as HER2, which promotes cancer cell growth.

(Mackenzie notes that it shouldn't be a problem for her strategy, because she plans to use the same kind of cells as bone marrow transplants, which haven't caused tumors.)