Sentences with phrase «same type of cells»

Now, researchers at the University of Cambridge have used fluorescent markers to track cell development in the embryo of a cartilaginous fish — a little skate in this case — and found that these thorny scales are in fact created from the same type of cells as teeth: neural crest cells.

The study examined nanoparticle entry into endothelial cells and macrophages for the in vitro study, and the same type of cells from the lung, heart and bone marrow for the in vivo component.

Not exact matches

Embryonic stem cells are scientifically and medically interesting because they are «pluripotent» (capable of generating many cell types), but they are not the same as totipotent single - cell embryos.

These same cells as part of my hand, however, can serve as instrumentalities accomplishing the aims of my mind, such as the typing of this chapter.

A type of «virgin birth» stem cell could be as powerful as embryonic stem cells but without the same ethical objections, and are being tested for Parkinson ’s

«What this research shows is that they're using the same cell types with the same kinds of connections we see in the neocortex, but with a very different kind of organization.»

The study, published in Nature Communications, builds on previous observations from the same team who found that a specific type of cells regulate antibody production.

«Each area of the brain is different with distinct cell types and connectivity, so if we can confirm that one area of circuitry is more involved in a particular symptom than another, we may eventually be able to treat a depression patient more efficiently than treating everyone the same way.»

Since the cancer cells in both types of tumors were the same, the researchers compared the noncancerous cells present in the induced and transplanted tumors to explore what might be causing the T cell apoptosis.

Richard Bennett of Brown University in Providence, Rhode Island, and his colleagues mixed the two types and saw matings between same - sex cells, but only a few (Nature, DOI: 10.1038 / nature08252).

Different responses of male and female cells to the exact same type and concentration of nanoparticles is the latest overlooked factor we have found.»

«Just as normal cells with the same genome differentiate into many different cell types, a single tumor characterized by specific genetic mutations can contain many different types of cells — stem - like and more differentiated cells — with the difference being rooted in their epigenetic information.

Although the face and heart don't end up so close together, they arise from the same type of precursor cells called neural crest cells.

The cells we have studied control the blink reflex, but there are many cells of the same type that control entirely different processes.

«Different types of cancer cells with different strengths and weaknesses are both present in the tumor at the same time and can work together to spread faster and more efficiently.

One way to get many types of cells or proteins from the same genetic starting material is by mixing and matching different parts of one gene to produce multiple gene readouts, a phenomenon known as alternative splicing.

In order to isolate the 3D structure of the chromosome during metaphase, the authors used a combination of chromosome conformation capture technologies (3C, 5C and Hi - C) developed by the Dekker lab over the last decade to map the points of contact along the mitotic chromosome in different cell types synchronized to divide at the same time.

The LPA receptor is expressed in the brain of human fetuses, just as in mice, and in the same types of neural progenitor cells.

This is important because the proportion in which the de novo mutation is present in a patient, as well as the type of cells in which it occurs, may not only determine the clinical outcome of a disease for the patient, but also affect the risk of the parents having another child with the same disease in future pregnancies.

For each patient, the suitable combination treatment could then be designed, which, in the first step, would turn the variety of different tumor cells into a mass of cancer cells of the same type.

Typically, cells of the same type have matching patterns of gene activity — many of the same genes are turned off or on in all cells.

The same compound promotes the growth of tooth tissue called dentine — a protective material between the sensitive pulp inside a tooth and the enamel on its surface — so Cohen believes that the type of tissue formed partly depends on the neighbouring cells.

The flexible wires assume the same basic arrangement as a common type of rooftop solar cell, which contains a negatively charged layer, a positively charged layer and a neutral material sandwiched between them.

In a previous related study published in the Journal of Materials Science: Materials in Medicine, the same team of NTU scientists found that fish scale - derived collagen would induce human umbilical vein endothelial cells to express 2.5 times more of a specific type of collagen responsible for blood vessel formation, as compared to endothelial cells cultured on bovine collagen.

«This is a major breakthrough and a beautiful example of convergent evolution where vertebrates at least five times have independently evolved» this ability «by modifying different cell types to serve the same function.»

The researchers show that cells of the same type take up different amounts of viral DNA into their nucleus.

In an experimental setup that allowed the two types of cells to bathe in the same fluid without coming into physical contact, retinal neurons in a bath with hUTCs formed new connections between neurons called synapses, and they sprouted new «neurites» — tiny branches that lead to additional connections.

Previous studies showed that cells which express the same type of cadherin interact with each other, but cells with different types of cadherins remain separate.

All cells in tissues adhere to each other using molecules called cadherins which interact and connect cells of the same type together.

The same area has a known role in the development of T - cells, a key type of immune cell.

The researchers discovered that FT was also produced in the same type of companion cells in the phloem of Maryland Mammoth tobacco.

Researchers do not know if the same thing would work for other types of cancer or cancer cells lodged in other body organs.

For the first time ever, we could make a really comprehensive comparison of individual normal and tumour cells from the exact same type of tissue, taken at the same time, from the same person, and see how the cancer had developed.»

All formed the same types of stem cells, which give rise to «progenitor» cells that, in turn, divide into neurons and eventually organize themselves in six layers of brain tissue.

The specific pattern of epigenetic marks in a cell type specifies identity and this epigenetic control is vital to what makes our cells different, for example a skin cell from a liver cell, when they all contain the same genetic instructions.

These are the same T cell genes inhibited by digoxin, and since replication of integrated HIV - 1 requires transcription of nearby genes, this provides an explanation for why wild type HIV - 1 is more susceptible to digoxin: digoxin represses the genes that the virus more frequently targets for integration.

Researchers are trying to figure out how a plant or animal makes different cell types from the same set of genetic instructions.

Led by researchers at Duke University, the study offers clues to a longstanding question in developmental biology, namely how plants and animals make so many types of cells from the same set of instructions.

In that case, the genetic information within the chromosome copies remains the same, but the type of cell, or «cell fate,» is different.

And that differentiation could provide a structural basis to help explain how cells with the same overall genome nonetheless can differentiate into hundreds of different cell types.

By comparing hippocampal and cortical neurons in mono - culture (with other cells of the same type) and in co-culture (both cell types deposited within one device), the research showed that some features from hippocampal cells, like the percentage of action potential spikes found in bursts, were significantly higher when cultured together with cortical cells.

Because every cell in an organism contains the same DNA, epigenetic marks help it find the right form for the type of cell it inhabits.

Looking for immune abnormalities throughout the lifespan of the mice, the group found that most immune system components stayed the same in number, but a type of brain - resident immune cells called microglia that are known first responders to infection begin to divide and change early in the disease.

Neil Johnson's lab at the Fox Chase Cancer Center examined treatment resistance in breast cancer cells expressing the same BRCA1185delAG mutation and determined that the RING - deficient BRCA1 protein was also responsible for loss of sensitivity to certain types of cancer treatments.

Additionally, when the same type of mice on the same diet for 45 weeks, at which point they would have already developed HCC, showed no signs of HCC after treatment with AIM, indicating that cancerous cells were being destroyed.

Furthermore, stem - cell lines from mice begin to lose their ability to produce many types of cells after as few as 20 generations, and researchers assume the same will prove true for stem cells from humans.

Professor Wolf Reik, Head of the Epigenetics Laboratory at the Babraham Institute and co-lead scientist on this research, said: «Transcription in individual cells can vary between cell types but also between cells of the same type.

Using tissue culture models of cartilage and the meniscus, Levenston's team stresses the cells and tissues and studies what happens to them structurally and biochemically — for example, whether different genes are expressed, whether metabolism changes, or whether different types of cartilage cells respond differently to the same stress.

Around the same time, Irvine's lab developed a new type of T cell vaccine that hitches a ride to the lymph nodes by latching on to the protein albumin, found in the bloodstream.

The resulting fragments attract several types of immune cells, which led pulmonologist Steven Shapiro of Washington University in St. Louis to suspect that the fragments might also attract more of the same kind of macrophages that started destroying elastin in the first place.