«Our group pioneered the development of cell culture technology for harvesting large numbers of stem cells from human bone marrow and human umbilical cord blood,» Dr. Yeh said, noting that stem cells from these two sources are abundant and can be guided into
different types of cells using tissue engineering.
Not exact matches
Monica knew from the start that he wanted to
use a
different type of foam than the black, open -
celled polyurethane that is standard among competitor models.
«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.»
In the journal Biomaterials, the team reports culturing
cells to make extracellular matrix (ECM)
of two
types and five
different alignments with the strength found in natural tissue and without
using any artificial chemicals that could make it incompatible to implant.
Using a mathematical model known as the Ising model, invented to describe phase transitions in statistical physics, such as how a substance changes from liquid to gas, the Johns Hopkins researchers calculated the probability distribution
of methylation along the genome in several
different human
cell types, including normal and cancerous colon, lung and liver
cells, as well as brain, skin, blood and embryonic stem
cells.
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.
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.
Cellular toxicity was unrelated to the
type of «carrier» solution
used in the
cell cultures, the
use of HES made from
different origins (potato versus corn starch), or the time
cells spent in culture with HES.
Human epidermal equivalents representing
different types of skin could also be grown, depending on the source
of the stem
cells used, and could thus be tailored to study a range
of skin conditions and sensitivities in
different populations.»
Backman has been studying
cell abnormalities at the nanoscale in many
different types of cancers,
using an optical technique he pioneered called partial wave spectroscopic (PWS) microscopy.
«When you look at the varying
types of cell morphologies that correspond to
different leukemias, you can statistically look at enough
cells using this system to be able to classify
different kinds
of leukemias,» says Yousaf.
The team
used five
types of antibiotics — including one
used to treat acne (doxycycline)-- on
cell lines
of eight
different types of tumour and found that four
of them eradicated the cancer stem
cells in every test.
Using DNA strands just 58 nucleotides long to uniquely identify each particle allows researchers to skip the
cell culture screening altogether — and test a hundred or more
different types of nanoparticles simultaneously in just a handful
of animals.
In a Developmental
Cell paper publishing October 13, researchers demonstrate that the single -
celled ancestor
of animals likely already had some
of the mechanisms that animal
cells use today to develop into
different tissue
types.
To make the pigmented skin constructs, the team
used three
different types of skin
cells — keratinocytes, melanocytes, and fibroblasts — and a two - step «drop on demand» bioprinting method.
«Although right now we are focusing on developing a cancer vaccine, in the future we could be able to manipulate which
type of dendritic
cells or other
types of immune
cells are recruited to the 3D scaffold by
using different kinds
of cytokines released from the MSRs,» said co-lead author Aileen Li, a graduate student pursuing her Ph.D. in bioengineering at Harvard SEAS.
Depositing the
cells with the micro-fabricated, funnel - like insert allows the insert to be
used with any
type of chip platform or
cell type, because it doesn't require patterning the chip's surface with
different chemicals to adhere the
cells to it.
Such measurements could be
used to sort
different types of cells — to distinguish cancerous
cells from healthy ones, for example — or to measure how
cells change when exposed to drugs.
It has billions
of parts, many
used to activate and silence genes — an arrangement that allows individual
cells to specialize as brain
cells, heart
cells and some 200 other
different cell types.
The next steps for Zhang and his team is to focus mostly on
using the agent on
different types of stem
cells and to test them in vivo.
They
used genetic knockout mice to look for the
cells, silencing
different types of TRCs, then flushing the rodents» mouths with water to see which
cells responded.
The follow up Biosensors paper, provides a proof -
of - principle
use of these probes as tools to assess and compare GLUT5 and metabolic activity
of different cell types, including normal
cells and
different cancer subtypes.
Christian Seiser says: «Our results highlight that it is crucial to understand the individual role the various HDAC variants in
different cell types and hence
different types of cancer, before HDAC inhibitors can be
used safely as therapeutics.»
Using different types of perovskites across multiple layers could allow solar
cells to more effectively absorb a broader range
of photons.
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.
Cells may
use different rates
of translation in
different types of mRNA to produce the right amounts and ratios
of required proteins.
By seeding elements with an assortment
of antibodies, the device could be set up to capture several
different cancer
cells types using a single blood sample.
Because stem
cells have the ability to develop into many
different cell types in the body, researchers at USF's Center
of Excellence for Aging and Brain Repair, Department
of Neurosurgery & Brain Repair have focused on
using stem
cells to restore function lost through neurodegenerative disorders or injuries.
So to be able to make the most efficient
use of the sunlight, one
of the possibilities is to build tandem -
type structures, in other words, to fit the
cells manufactured with
different polymers one on top
of the other,» explained Etxebarria.
Earlier this year, scientists at University
of California, Los Angeles, and Advanced
Cell Technology
of Marlborough, Massachusetts, reported in The Lancet about the safe and successful
use of RPE
cells derived from human embryonic stem
cells, rather than iPS
cells, to treat a
different type of AMD in a limited number
of human patients.
Using the spinal cord as a model, Jessell deciphered at the molecular level how
different types of nerve
cells are generated as well as the steps that drive their assembly into the circuits mediating motor coordination and reflexive behaviours.
«We thought, why not
use a
different cell type — and we can easily get access to fat,» says Joseph Wu, a co-author
of a study on this process and assistant professor
of medicine at Stanford.
During the 20th century molecular techniques have enabled researchers to investigate how
different genes and proteins are
used in
different parts
of tissues, to understand how
cell types collaborate in tissues.
Using machine learning technology, the researchers analyzed hundreds
of existing datasets from six
different cell types to look for patterns in the genome that identify where a gene and enhancer interact.
A research team, led by Chao Cheng, Ph.D., Assistant Professor in the Department
of Genetics at The Geisel School
of Medicine at Dartmouth,
used gene expression data from breast cancer patients to computationally infer the presence
of different types of immune
cells.
Genome editing is
used in many
different cell types and organisms to specifically modify genes for the interrogation
of fundamental cellular pathways.
Humans have many
cell types - nerve
cells, blood
cells, skin
cells, to name a few - and while each
cell contains the same genetic instructions,
different parts
of the genetic information are
used to produce proteins in each
type of cell.
For instance, the trials underway in China and Australia
use neural progenitor
cells that can grow to become a variety
of different cell types.
I and a colleague have attempted to
use this on two
different types of cell lines
using Flow cytometry and fluorescence microscopy all
of which proved unsuccessful.
Working in mice, Norbury's team
used several methods to deplete
different types of innate immune
cells — collectively known as myeloid
cells — at the three checkpoints before infecting the rodents with poxvirus.
Among the strengths
of the study: instead
of using just one method to deplete macrophages, the researchers
used nine distinct methods to deplete
different myeloid
cells in various locations, allowing them to pinpoint the most important
cell type and its primary location
of action.
Mechanical properties
of many
different cell types including glial
cells, platelets, cardiocytes, macrophages, endothelial
cells, epithelial
cells, fibroblasts, bladder
cells and more have been determined
using F - d spectroscopy.
«We compiled a list
of the proteins we thought Zika and similar viruses like dengue were
using to get inside
of cells, and then we looked to see which
of these proteins were abundantly present in the
different cell types of the developing brain,» said Pollen, who did the work with Tomasz Nowakowski, PhD, and a UCSF graduate student Carmen Sandoval - Espinosa, BS, both in Kriegstein's lab.
Even though
different cell types were
used as the initial starting materials, and they were made to produce
different sets
of proteins, both groups identified and isolated
cells nearly identical to human embryonic stem
cells, and did so in the same timeframe.
The current study involved monitoring the patients for one year after completed stem
cell transplantation and
used mass cytometry to study the
different cell types of the immune system and the so called ProSeek method for simultaneous protein analysis.
Yet this study brings us tantalisingly close to
using skin
cells to grow many
different types of human tissues.
Using the spinal cord as a model, Jessell deciphered at the molecular level how
different types of nerve
cells are generated, as well as the steps that drive their assembly into the circuits mediating motor coordination and reflexive behaviors.
Even though
different cell types were
used as the initial starting materials, and they were made to produce
different sets
of proteins, both groups were able to identify and isolate hESC - like
cell colonies only 20 to 30 days after transduction.
Teitell
used embryonic stem
cell lines that made
different types of neurons and studied them with array CGH for comparison.
«The best case scenario is that from this one very accessible and highly proliferative source
of stem
cells, we will be able to obtain multiple
different cell types that can be
used for a broad range
of applications in regenerative medicine,» he said.