Sentences with phrase «of human tumor cells»

They then tested the behavior of human tumor cells with and without HOXA5 by injecting those cells into the mammary fat pad of mice.

They already knew of one such compound, a chemical called PD09859 that is one of 60,000 agents the NCI had screened for ability to block growth of human tumor cells.

Published in Molecular Neurobiology, the study led by Dr Elodie Siney under the supervision of Dr Sandrine Willaime - Morawek, Lecturer in Stem Cells and Brain Repair at the University, analysed how enzymes called ADAMs affect the movement and function of the human tumor cells.

The assembly and analysis of human tumor cell genomes, many of which contain chromosome deletions, duplications and insertions, as well as single nucleotide changes, requires immense data storage capacity and high - speed computation.

Evidence demonstrating its cytostatic activity includes the finding that it inhibits the growth of a broad spectrum of human tumor cell lines in vitro.

An inverse correlation has been found between DAXX and DAPK1 / 3 mRNA expression in a diverse collection of human tumor cell lines and tumor specimens [Submitted], suggesting that DAXX's role as a transcriptional repressor of DAPK1 / 3 [2] is broadly relevant to tumor biology and is not restricted to PCa.

Not exact matches

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.

«Animal studies and in - vitro studies with human cells have repeatedly shown that food - grade carrageenan causes gastrointestinal inflammation and higher rates of intestinal lesions, ulcerations, and even malignant tumors.»

Capsaicin additionally produced a significant deceleration of the development of prostate tumors created simply by those human cell lines grown in mouse models.

To determine how the cells switch from one type to another, they took three human uterine carcinosarcoma samples and sequenced the genomes of cells in two parts of each tumor: the carcinoma and sarcoma components.

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.

«This model was trained on genetic data from human tumors in The Cancer Genome Atlas and was able to predict response to certain inhibitors that affect cancers with overactive Ras signaling in an encyclopedia of cancer cell lines,» Greene said.

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.

HBI member V. Wee Yong, PhD and research associate Susobhan Sarkar, PhD, and their team including researchers from the Department of Clinical Neurosciences and the university's Southern Alberta Cancer Research Institute, looked at human brain tumor samples and discovered that specialized immune cells in brain tumor patients are compromised.

In a series of experiments, the researchers first identified a set of 19 transcription factors that were expressed at significantly greater levels in cultured human glioblastoma stem cells capable of tumor propagation than in differentiated tumor cells.

Engineered human immune cells can vanquish a deadly pediatric brain tumor in a mouse model, a study from the Stanford University School of Medicine has demonstrated.

Kilian said his team's synthetic microenvironment lies somewhere in the middle of two extremes in the field of modeling biology: the hard plastic plate, and expensive mouse avatars that are created by injecting human tumor cells into mice.

Oncologists William Hahn, Robert Weinberg, and colleagues at the Whitehead Institute for Biomedical Research in Cambridge, Massachusetts, mutated the gene for one part of the enzyme and inserted it into cultured human cells from colon, ovary, and breast tumors.

When the scientists inserted human colorectal cancer cells into zebrafish embryos and allowed them to grow for 4 days, the resulting tumors showed three hallmarks of human solid tumors: rapid cell division, formation of blood vessels to supply nutrients, and the ability to spread to other locations in the body.

The researchers also tested a Runx2 knock - down variant of a human multiple myeloma cell line and found that it produced significantly less tumor growth in immunodeficient mice than the original human multiple myeloma cells.

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.

Compared to a control (left), epalrestat treatment (right) reduces the number of metastatic tumors (arrowheads) in the lungs of mice injected with human basal - like breast cancer cells.

In the current study, Dr. Xu and colleagues gave radiation therapy to a mouse model of human pancreatic cancer to eradicate the bulk tumors, while only the cancer stem cells remained in the residual scars.

They found out that TiY is capable of distinguishing TICs from non-TICs in various human lung cancer cell lines and patient - derived lung tumors.

Desgrosellier said the team will follow up with mouse models containing tumor fragments from patients to better reflect the diversity of cell types present in human disease.

However, cancer cells may instead be coaxed to turn back into normal tissue simply by reactivating a single gene, according to a study that found that restoring normal levels of a human colorectal cancer gene in mice stopped tumor growth and re-established normal intestinal function within only 4 days.

The discovery of an unexpected biochemical link within tumor cells should lead to clinical trials for experimental drug treatments that indirectly target myc and that already are being evaluated in human studies, the researchers said.

«But cancer cells in the lab don't necessarily indicate the response of human tumors,» Håkansson reminds the group.

In earlier studies involving animal models and human cancer cell lines, researchers found that breast cancer spreads when three specific cells are in direct contact: an endothelial cell (a type of cell that lines the blood vessels), a perivascular macrophage (a type of immune cell found near blood vessels), and a tumor cell that produces high levels of Mena, a protein that enhances a cancer cell's ability to spread.

Coffin described how lab workers there had transplanted human prostate tumor cells into an immune - deficient lab mouse, a common procedure for procuring a colony of cells, or a human cell line, for further study.

Glioblastomas in lab dishes and mouse brains are fakes, little Potemkin villages that everyone thought were faithful replicas of human glioblastomas but which, lacking tumor stem cells, were nothing of the kind.

One of those genes, K - Ras, which was discovered nearly 30 years ago, is mutated in 30 percent of human tumors, including 90 percent of pancreatic cancers, 40 percent of colon cancers, and 20 percent of non-small cell lung cancers.

In human cells as well, if Nbs1 and ATM function in the same way to ensure repair of DNA damage, tumor formation may be prevented.

Another is that the transplanted bits of tumor act nothing like cancers in actual human brains, Fine and colleagues reported in 2006: Real - life glioblastomas grow and spread and resist treatment because they contain what are called tumor stem cells, but tumor stem cells don't grow well in the lab, so they don't get transplanted into those mouse brains.

But working with human smooth muscle cells isolated and grown from the healthy parts of airway tissue surrounding excised tumors, Benjamin Kalbe and his colleagues applied a large number of odor molecules and watched two of them activate the muscle cells.

To see if PGD and the pentose phosphate pathway were tied to the epigenetic changes the researchers had detected in distant metastases, they treated tumor cells from different sites in a single patient with the drug 6 - aminonicotinamide (6AN), which is known to inhibit PGD but is not used in humans because of its severe side effects.

This group's achievement shows the possibility to clarify the mechanism of human tumor formation, especially the molecular mechanism responsible for in the initial stage of cell cancerization due to DNA damaged by radiation in the initial stage, by using the model of budding yeast, a primitive eukaryote.

Now he and his team are putting cells from human brain tumors into the organoids, which have reached the level of development and complexity of a 20 - week - old human fetus's, to see whether they reprise what happens in patients.

To test this idea, the researchers utilized two mouse models of human breast cancer metastasis and found dormant disseminated tumor cells residing upon the membrane microvasculature of lung, bone marrow and brain tissue.

Shah next plans to rationally combine the toxin - secreting stem cells with a number of different therapeutic stem cells developed by his team to further enhance their positive results in mouse models of glioblastoma, the most common brain tumor in human adults.

The Ogretmen laboratory screened previously reported microarray data sets of several human tumor tissues (metastatic head and neck squamous cell carcinoma, melanoma, and renal cell carcinoma) and showed that, in these samples, only the levels of CerS4 were significantly decreased.

The NanoFlare technology is the first genetic - based approach that is able to detect live circulating tumor cells out of the complex matrix that is human blood — no easy feat.

Researchers at Rice University's Laboratory for Systems Biology of Human Diseases analyzed the metabolic profiles of hundreds of ovarian tumors and discovered a new test to determine whether ovarian cancer cells have the potential to metastasize.

In this study, the researchers tested the effects of Olaparib on the tumors formed by human breast cancer cells injected into mice.

The resulting «map» of gene - drug interactions allowed the researchers to accurately predict the responses of multiple human cancer cell lines to different chemotherapy agents based on the cell lines» genetic profiles and also revealed new genetic factors that appear to determine the response of breast and ovarian tumor cells to common classes of chemotherapy treatment.

By using molecular genetic tools to reduce the amount of PC in human lung cancer cells, the team observed decreased cell growth, a compromised ability to form colonies in soft agar (a gelatinous material specifically used to grow bacteria and other cells), and a reduced rate of tumor growth in mice.

In humans, an increased genetic signature of these cells correlated with better outcomes in a variety of tumor types.

Rather than artificially triggering cancer by engineering genetic mutations, this model more closely mimics human liver cancer in that tumors develop as a natural consequence of non-alcoholic steatohepatitis (NASH), a chronic metabolic disorder that causes liver damage, fibrosis and numerous cell mutations.

The human immune system is poised to spring into action at the first sign of a foreign invader, but it often fails to eliminate tumors that arise from the body's own cells.

Their study, published in the ACS journal Chemical Research in Toxicology, found that triclosan, as well as another commercial substance called octylphenol, promoted the growth of human breast cancer cells in lab dishes and breast cancer tumors in mice.