But until now, a biologist still needed strong programming skills to do detailed
cell models at the molecular level, and even more than that, patience.
If the work proceeds as expected, «all interactions between genes, proteins, and small molecules will be revealed, and the whole cellular network will be reconstructed,» says Igor Goryanin, who heads
cell modeling at GlaxoSmithKline in Stevenage, U.K.
Not exact matches
He conducted his postdoctoral research
at Brigham and Women's Hospital / Harvard Medical School, where he researched the role of the Wnt signaling pathway in mouse
models of kidney disease, and was part of a team that discovered a stem
cell subtype responsible for solid organ fibrosis.
Tesla has been quite secretive about its latest generation of battery
cells, the 2170 li - ion
cells, which they designed for
Model 3 and Panasonic is manufacturing them
at Tesla's Gigafactory 1 in Nevada.
Though Tsuga did not explicitly comment on whether this was related to Tesla's newest mass market sedan, it's presumed that he was referring to automation of
Model 3's 2170 li - ion battery
cell and pack production
at the Gigafactory.
Birch and Cobb maintain that the ecological
model is more adequate than the mechanical
model for explaining DNA, the
cell, other biological subject matter (as well as subatomic physics), because it holds that living things behave as they do only in interaction with other things which constitute their environment (LL 83) and because «the constituent elements of the structure
at each level (of an organism) operate in patterns of interconnectedness which are not mechanical» (LL 83).
The group tries to
model biological behavior
at the tissue, cellular and
cell signaling levels.
«In theory, we could
model progression of the disease by reprogramming skin
cells from patients
at a range of ages, including before symptoms begin.
Her interest was piqued: Upon graduating in 1999 she joined the lab of Ding Xue
at the University of Colorado, Boulder, to study how
cell death is regulated in the
model organism Caenorhabditis elegans.
«Our research is the first to study Zika infection in a mouse
model that transmits the virus in a way similar to humans,» explains Alysson R. Muotri, Ph.D., professor and director of the Stem
Cell Program
at UC San Diego and co-senior author of the study.
«We found that the syncytiotrophoblasts formed in our system recapitulated the barrier properties of the naturally occurring
cells and they resisted infection by a
model virus and three genetically different strains of Toxoplasma,» said co-investigator Jon P. Boyle, Ph.D., associate professor of biological sciences
at Pitt.
Researchers
at the University of Pittsburgh and Magee - Womens Research Institute (MWRI) have devised a
cell - based
model of the human placenta that could help explain how pathogens that cause birth defects, such as Zika virus, cross from mother to unborn child.
«We are very excited about the prospect of using these more physiologically relevant
cell - based
models for gene and small molecule drug discoveries,» says Dr. Andrew Liu, Assistant Professor of Biology
at the University of Memphis.
Researchers
at the University of Memphis and University of Pennsylvania report the development of robust new liver and fat
cell models that report circadian clock function.
In preclinical studies using
cell models that mimicked liver
cells of patients with the rare disease Friedreich's ataxia (FA), a widely used cholesterol - lowering drug increased a precursor of HDL (high - density lipoprotein), the «good cholesterol,» according to new research published in PLOS ONE from the Perelman School of Medicine
at the University of Pennsylvania.
They used this novel simulation approach to build a
model of a sperm
cell that demonstrates cellular movement from individual dynein protein molecules in the tail all the way up to the whole
cell, allowing them to observe how changes
at the atomic level are reflected in larger - scale structures.
By creating an experimental
model of leukemia in mice whose cancer
cells were resistant to chemotherapy the team was able to caracterize these
cells» metabolic profile and observed certain modifications
at the level of the mitochondria.
Now, in a paper published on Oct. 3 in the Biophysical Journal, researchers
at UConn Health's Virtual
Cell Project have made it far easier for cell biologists to build complex biological mod
Cell Project have made it far easier for
cell biologists to build complex biological mod
cell biologists to build complex biological
models.
The researchers have also developed an analogous
model that works for calcium interactions with phospholipids
at the
cell membrane.
In the current study, Frank Longo, MD, PhD, and others
at Stanford University, tested LM22A - 4, a drug that specifically binds to and activates the BDNF receptor TrkB on nerve
cells, in mice that
model the disorder.
Researchers, led by Joshua Mayourian
at the Icahn School of Medicine
at Mount Sinai, used mathematical
modeling to simulate electrical interactions between these stem
cells and heart
cells to develop insight into possible adverse effects, as well as to hypothesize new methods for reducing some potential risks of this therapy.
A newly characterized group of pharmacological compounds block both the inflammation and nerve
cell damage seen in mouse
models of multiple sclerosis, according to a study conducted
at the Icahn School of Medicine
at Mount Sinai and published online this week in the journal Nature Neuroscience.
In collaboration with Prof. Dr. Roland Schüle and his team
at the Center of Clinical Research of the Freiburg University Medical Center, the scientists were able to test several epigenetic inhibitors that had been newly developed by Schüle and his team on the cancer stem
cell model.
«The compounds identified in this study, when administered orally, both reduced the inflammation that is a hallmark of multiple sclerosis and protected against the nerve
cell damage seen in mouse
models of the disease,» said Jeffery Haines, PhD, a post-doctoral fellow
at Mount Sinai and the study's lead author.
In addition to looking
at mouse
models of diabetes, the researchers also showed that exposure of human pancreatic islet
cells — both from healthy donors and from patients with Type 1 diabetes — to fasting - mimicking diet in a dish stimulated insulin production.
The study — which looked
at the action of Substance P within nerve
cells in the lab and in animal
models — focused on acute pain, but Professor Gamper aims to look
at its role within chronic pain as well.
In a new study, Murphy, a molecular biologist
at Princeton University, showed that long - lived bodily, or somatic,
cells in Caenorhabditis elegans, a one - millimeter nematode commonly used as a
model for aging studies in labs, activate genetic pathways completely separate from those found in long - lived egg, or oocyte,
cells.
Researchers
at University of California San Diego School of Medicine report that a single infusion of wildtype hematopoietic stem and progenitor
cells (HSPCs) into a mouse
model of Friedreich's ataxia (FA) measurably halted cellular damage caused by the degenerative disease.
Researchers
at The University of Texas MD Anderson Cancer Center developed a novel chimeric mouse
model to test the combination therapy using immune checkpoint blockades with therapies targeting myeloid - derived suppressor
cells (MDSCs).
Researchers have proposed
at least five
models of Barrett's esophagus, each based on a different
cell type.
«Most previous research into ways of delaying the onset of HD symptoms have focused on studying the mutant protein in
cells or in animal
models, but the relevance of abnormalities in those systems to what actually happens in patients remains a huge assumption,» says James Gusella, PhD, director of the Center for Human Genetic Research (CHGR)
at Massachusetts General Hospital (MGH), corresponding author of the
Cell paper.
Two of his math professors were collaborating with physiologist Joshua Singer, also
at Northwestern, who was keen to
model the biology of a retinal
cell called the AII amacrine interneuron.
Still, he says, other groups have arrived
at opposing results regarding the role of T
cells in the disease, in part, perhaps, because their animal
models aren't the same.
In collaboration with the group of Valerian Kagan, Ph.D., D.Sc.,
at the University of Pittsburgh, Gabrilovich and colleagues analyzed in great detail the events that take place in the DCs from tumor - bearing mice
models and found that impaired cross-presentation, which occurred in the presence of tumor - derived factors, was associated with defective trafficking of the antigen - MHC complex to the
cell surface.
Working in Morrison's Neurotrauma and Repair Laboratory
at Columbia Engineering, the team developed a blast injury
model using a shock tube and custom - designed sample receiver to simulate a primary blast event and applied it to an isolated, living
model of the BBB that consisted of brain endothelial
cells.
Now, a team of scientists
at the Icahn School of Medicine
at Mount Sinai have developed the Just EGFP Death - Inducing T -
cell, or JEDI T -
cells, which enable the visualization of T -
cell antigens, allowing researchers to study T -
cell interactions with different
cell types,
model disease states, and finally determine the functions of otherwise poorly characterized
cell populations.
In a mouse
model of triple - negative breast cancer, mice injected with cancer
cells that over-express ZMYND11 had tumor volumes of less than 50 cubic millimeters while control mice and those injected with
cells expressing ZMYND11 deficient for binding to the methyl group had tumor volumes ranging from 150 to 400 cubic millimeters
at eight weeks.
«Our work could lead not only to a better understanding of the biology of the optic nerve, but also to a
cell - based human
model that could be used to discover drugs that stop or treat blinding conditions,» says study leader Donald Zack, M.D., Ph.D., the Guerrieri Family Professor of Ophthalmology
at the Johns Hopkins University School of Medicine.
Today, a team of scientists
at Cold Spring Harbor Laboratory (CSHL) led by Professor Partha Mitra describes a new mathematical
model that combines large data sets to predict where different types of
cells are located within the brain, based on their molecular identity.
The CRISPR - Cas9 technology allows researchers to transiently introduce DNA double - strand breaks into the genome of
cells or
model organisms
at genes of choice.
When we experimentally increased the expression of the microRNAs in
model nerve
cells designed to replicate the conditions of HD, the
cells lived longer, indicating that these miRNAs may promote
cell survival,» explained lead author Richard Myers, PhD, professor of neurology
at BUSM.
In a bid to progress beyond the shotgun approach to fighting cancer — blasting malignant
cells with toxic chemicals or radiation, which kills surrounding healthy
cells in the process — researchers
at the Harvard - MIT Division of Health Sciences and Technology (HST) are using nanotechnology to develop seek - and - destroy
models to zero in on and dismantle tumors without damaging nearby normal tissue.
Research in the laboratory of Rebecca Wingert, the Gallagher Family Associate Professor of Adult Stem
Cell Research in the Department of Biological Sciences
at the University of Notre Dame, has confirmed the key role of a certain small molecule in the development of kidney structures in zebrafish, a widely used
model for human kidneys.
Now, scientists
at Boston University's Center for Regenerative Medicine (CReM) have announced two major findings that further our understanding of this process: the ability to grow and purify the earliest lung progenitors that emerge from human stem
cells, and the ability to differentiate these
cells into tiny «bronchospheres» that
model cystic fibrosis.
Such
cell - tracing techniques are the right approach to test the cancer stem
cell model, says Sean Morrison, who studies stem
cells and cancer
at UTSMC and who was not involved in any of the studies.
«Using a genetic mouse
model of DIPG, we found that the histone mutation turns off p16, which is a gene that acts like a break on dividing
cells,» says senior author Oren J. Becher, MD, from Stanley Manne Children's Research Institute
at Ann & Robert H. Lurie Children's Hospital of Chicago.
At Brandeis, Seth Fraden, professor of physics, and Irv Epstein, the Henry F. Fischbach Professor of Chemistry, created rings of synthetic,
cell - like structures with activating and inhibiting chemical reactions to test Turing's
model.
By reprogramming skin
cells into nerve
cells, researchers
at Karolinska Institutet are creating
cell models of the human brain.
The test procedure is performed on an in vitro skin
model built
at Fraunhofer IGB from human skin
cells in special culture dishes.
New
models that factor in white blood
cell count and blood pH do better, but «they require a lot of invasive testing,» says Anna Penn, a neonatologist
at Lucile Packard Children's Hospital (LPCH) in Palo Alto, California.