Pathologists examine
cells and tissue samples to diagnose disease.
Counsel for a university in a dispute with licensee and in subsequent successful license negotiations involving patents related to the diagnosis and analysis of
cells and tissue samples.
These results were also confirmed on human
cells and tissue samples.
An analysis of the HPV16 genome from 5,570 human
cell and tissue samples revealed that the virus actually consists of thousands of unique genomes, such that infected women living in the same region often have different HPV16 sequences and variable risks to cancer.
To address this gap in knowledge, Mirabello and Schiffman teamed up with co-senior author Robert Burk of Albert Einstein College of Medicine to sequence the whole genomes of 5,570 HPV16 - infected
cell and tissue samples from women around the world and to identify associations between HPV16 genetic variants and the risk of cervical precancer and cancer.
Not exact matches
Scientists can create
tissue to see how it will respond to chemicals or medicines,
and an individual's own
cells can be used to create a replica
tissue sample for a more accurate forecast of how that person's body will react.
But scientists published in
Cell Reports that they've discovered a way to regenerate those
cells in mouse, primate
and human
tissue samples.
In cancer research, our goal is to be able to start with a
sample of human
tissue, extract many
cells of interest,
and perform genetic analysis upon each of them separately.
The biobank of MedUni Vienna
and Vienna General Hospital is a central service facility dedicated to the storage of human
tissue,
cell material
and body fluids for more in - depth diagnosis, academic research projects
and clinical tests, as well as working - up
samples by way of a medical service.
Researchers used
tissue and blood
samples to show that the gammopathy (a precursor to myeloma) in both mice
and patients with Gaucher disease is triggered by specific lipids,
and that the antibodies made by tumor
cells in nearly a third of myeloma patients are directed against such lipids.
These techniques include: human
tissue created by reprogramming
cells from people with the relevant disease (dubbed «patient in a dish»); «body on a chip» devices, where human
tissue samples on a silicon chip are linked by a circulating blood substitute; many computer modelling approaches, such as virtual organs, virtual patients
and virtual clinical trials;
and microdosing studies, where tiny doses of drugs given to volunteers allow scientists to study their metabolism in humans, safely
and with unsurpassed accuracy.
In this study, rather than studying one iPS
cell line, the researchers derived
and sequenced 10 iPS
cell clones from each patient
tissue sample to get a better understanding of mitochondrial DNA mutation rates.
Tissue engineers have been unable to grow epidermis with the functional barrier needed for drug testing,
and have been further limited in producing an in vitro (lab) model for large - scale drug screening by the number of
cells that can be grown from a single skin biopsy
sample.
They took
cells from those
tissue samples and successfully grew them on a three - dimensional scaffold to produce new vocal cords.
From
tissue and cell samples from five glioblastoma patients, the scientists obtained 33 individual cancer
cells capable of reproduction, which grew into very different tumors in the lab.
But with this technique, we can just take a small
sample of non-muscle
tissue, like skin or blood, revert the obtained
cells to a pluripotent state,
and eventually grow an endless amount of functioning muscle fibers to test.»
Over the course of three years, Horvath
and his team analyzed nearly 8,000
tissue samples from these datasets, which included blood, saliva
and cells from organs like the brain
and the colon.
They treated a variety of healthy
tissues and 23
samples of cancer
cells taken from leukemia patients with AG1295, a drug known to selectively block the kinase.
Scientists aim to freeze a
sample of the boys» testicular
tissue so that when they reach adulthood, spermatogonial stem
cells (SSCs) found in the
tissue can be reproduced
and transplanted back into the patients.
«Our study addressed an important safety issue — whether cancer
cells that might be present in testicular
tissue samples can survive the process to replicate the sperm - producing stem
cells,» said lead author Hooman Sadri - Ardekani, M.D., Ph.D., an instructor in urology
and regenerative medicine at Wake Forest Baptist Medical Center.
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 scientist tested their set - up using frozen human skin
cells, segments of pig heart
tissue,
and sections of pig arteries in volumes almost 20 times larger than previously attempted
samples.
They confirmed low levels of miR - 184 expression in human glioma
tissue samples and cultured
cell lines as well as an increase in the expression of SND1 compared to normal brain
tissue.
The solutions include better validation of
tissue samples and cell lines.
Another popular technique for 3D
cell imaging called spinning disc confocal microscopy can't image
samples nearly as long as Betzig's technique, but it is still better for imaging thick
cells and tissue.
Once they had established the chemical
and physical details about the nanocrystals, the team then tested the particles as «staining» agents on a
tissue sample containing liver cancer
cells held on a microscope slide.
For the new study, described in the October 23rd issue of Nature Communications, scientists at the Johns Hopkins Kimmel Cancer Center
and Dana Farber Cancer Institute in Boston collected
tissue samples containing normal
cells, ovarian cancers, metastases that had spread elsewhere,
and small cancers found in the fallopian tubes, which included single
cell layers of cancer called «p53 signatures»
and serous tubal intraepithelial carcinoma, or STIC lesions.
Working with the brains of six normal children
and seven autistic children ages 2 to 16, most of whom died of drowning, Courchesne has studied neurons under the microscope
and even counted the number of neural
cells in different
tissue samples.
The study of human astrocytes has faced issues related to access (
samples of living
tissue must be obtained from brain cancer or epilepsy surgeries or fetal
tissue)
and purification (breaking apart astrocytes away from other
cells often killed them
and many experiments ended in failure).
They observed similar results in ART - controlled, HIV - infected patients who had undergone elective abdominal surgery: their SVF
samples are positive for HIV DNA,
and the researchers could show the presence of infected
and virus - producing
cells within the patients» adipose
tissue and more specifically among adipose CD4 + T
cells.
The rate of JAK2 amplification in these
tissues was similar to
samples obtained after chemotherapy, suggesting that JAK2 plays a supporting role in drug resistance
and cancer stem
cell - like features.
Overall, including all genomic variations present in most if not all tumor
cells (clonal) as well as those present only in subsets of the cancer
cells (subclonal) from tumor
tissue, the researchers detected a total of 864 genetic changes in
tissue samples across the three tumor types,
and 627 (73 %) of those were also found in the blood.
UNISI provides expertise in the measurement of
cell signalling proteins, such as cytokines, chemokines
and inflammatory biomarkers in multiple
samples (including serum, plasma
and tissue culture supernatants), using a multiplex suspension array system or a flow cytometric bead assay.
The major goal of the Animal Models
and Cell Isolation Core will be to make available to members of NOAC
tissue and cellular
samples from control
and ethanol - exposed animals.
Samples matrixes suitable for metabolomics analyses include in vitro:
cell lysate
and medium,
and in vivo: Plasma, serum, urine, CSF, micro-dialysate
and tissues
The researchers took healthy
tissue and tumor
samples from mice,
and trained the nanoparticle - GFP sensors to recognize the bad
cells,
and for the GFP to fluoresce in the presence of metastatic
tissues.
TNGB collects, stores
and distributes high quality biological materials (nucleic acids,
cell lines
and tissue samples) linked to relevant clinical
and genetic data from patients affected by inherited diseases.
Tissues being
sampled include biopsy material from target organs, peripheral blood
cells and serum / plasma, germline DNA,
and stool for microbiota analysis.
To that end, Sharma gave an overview of MD Anderson's efforts to comprehensively characterize the activity of the immune
cells in the patients they treat,
and they've already analyzed over 42,000 tumor
tissue samples, from both before
and after treatment, looking for clues regarding how treatment outcomes relate to immune
cell infiltration into tumors.
Guided by a camera
and the ultrasound probe, Waxman carefully positioned the endoscope over the tumor
and passed a fine needle into the pancreatic lesion to
sample tissue cells for biopsy.
For setting cancer in the context of ageing
tissue, study of normal adult homeostasis is important — we are studying mutational processes, clonal dynamics
and cellular competition in thousands of non-cancerous
cells and samples from a range of
tissue types, in health
and disease.
After more than a year of planning, the project had an easy - to - use, online consent form in which MBC patients could agree to share medical records, treatment history
and tumor
tissue and donate saliva
samples (allowing researchers to analyze both their cancerous tumors
and noncancerous
cells).
The technique is insensitive to the level of mutated cancer
cells in the
sample,
and the information about mutations can be linked directly to the way the tumour
cells are growing in the
tissue sample.
Researchers will be able to study
samples ranging from engineered nanoparticles
and nanostructures to naturally occurring biological polymers,
tissues and plant
cells.
3/24/2008 Non-Invasive Imaging Provides Window Into Genetic Properties of Brain Tumors Doctors diagnose
and prescribe treatment for brain tumors by studying, under a microscope, tumor
tissue and cell samples obtained through invasive biopsy or surgery.
There are many more glial
cells in the brain than neurons,
and astrocytes are the most abundant of the glia, so if you take a
sample of brain
tissue, you're fairly sure to get some astrocytes as part of the bargain.
At the heart of mass spectrometry is the ability to precisely measure tiny
samples of substances such as chemicals in soil
and water or cancer
cells in a
tissue sample.
For each
cell line
and tissue type, the average TPM value for replicate
samples were used as abundance score.
Just fill up the vat with embryonic stem
cell fluid, pop in a
tissue sample and set the dial to «gestate.»
For a total number of 131
cell line
samples and 172
tissue samples, mRNA sequencing was performed on Illumina HiSeq2000
and 2500 machines (Illumina, San Diego, CA, USA) using the standard Illumina RNA - seq protocol with a read length of 2x100 bases.