The chip would allow the filtering of cancer cells from a blood sample, which would be an easier way to harvest cancer cells, rather than the current method of taking
them from tumor sites in the body.
The team of medical and engineering researchers at The Ohio State University previously determined that modifying a single gene to reduce this protein's level in breast cancer cells lowered the cells» ability to migrate away
from the tumor site.
When the protein is present, these cells that start out round and stuck together in a pattern resembling cobblestones become irregularly shaped and tend to detach
from the tumor site in an uncoordinated way — hallmarks of metastasis.
Each tumor site was represented by four cores from different areas of the specimen; two cores
from each tumor site were included in each of two TMA blocks (8 cores of each patient in total).
Not exact matches
Since the neurosurgeon said the brain
tumor is not currently life threatening, I am not having surgery to remove it this year, but the back and forth and all the doctor's visits and catching up with work has kept me
from having the time to do much on this
site.
«Gradual release of immunotherapy at
site of
tumor surgery prevents
tumors from returning.»
The bone fragment, which comes
from the famous archaeological cave
site of Krapina, contains by far the earliest bone
tumor ever identified in the archaeological record.
Research
from past studies found that most
tumor cells remain in the primary breast
site, but a subset of cells leaves the breast and enters the bloodstream.
With a grant
from the Morris Animal Foundation, Antczak, his collaborators Samantha Brooks and Ann Staiger
from the University of Florida, and the rest of the team applied a genomewide association study to compare the genetic makeup of horses with and without sarcoid
tumors at more than 50,000
sites in the equine genome.
Comparing the metastasized
tumors with the original breast
tumors, the researchers were surprised to learn that multiple, slightly genetically different cells
from the original
site had broken away together and established the new
tumors.
Biopsied
tumor tissue
from all 60 new patients was fixed in formalin and embedded in paraffin so that TMEM
sites in the tissue could be counted.
«We wanted to utilize platelets» intrinsic tendencies to accumulate at wounds and to interact with circulating
tumor cells, for targeted delivery of immune checkpoint inhibitors» said Gu, «Interestingly, we found the antibody can be promoted to release
from activated platelets in the surgical
site, due to generation of small platelet - derived microparticles upon the platelet activation.
Bone metastases happen when cancer cells travel
from the primary
tumor site to the bone, establishing a new cancer location.
Anti-inflammatory cancer therapy instead would prevent premalignant cells
from turning fully cancerous or would impede an existing
tumor from spreading to distant
sites in the body.
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.
Understanding how cancer cells are able to metastasize — migrate
from the primary
tumor to distant
sites in the body — and developing therapies to inhibit this process are the focus of many laboratories around the country.
«The recent discovery of
tumor - promoting milieus, referred to as metastatic niches, that are established at distant
sites prior to or upon the arrival of disseminated
tumor cells could explain cancer cells that relapse early, but in late relapsing populations, what
tumor cells do
from the time of dissemination to the time they become clinically detectable has been a big question.»
Importantly, it's secretion
from normal cells can be induced by activating p53 so that Par - 4 enters circulation, thereby potentially targeting
tumor cells at distant
sites.
The team chose to compare breast tissue
from healthy individuals with
tumor samples taken
from breast cancer patients — including both primary
tumors that had not spread
from the breast to other body
sites, and highly aggressive, metastatic
tumors.
Metastasis (the spread of cancer
from its primary
site to other places in the body) to the ovaries can result in Krukenberg
tumors.
This allows cancer cells to break off
from tumors, spread throughout the body (in blood or other fluid) and form new
tumors at distant
sites — a process called metastasis.
The cell changes, known as an epithelial to mesenchymal transition, or EMT, are normal and helpful during wound healing, but problematic when cancer cells spread
from the primary
tumor site to other
sites in the body.
It is not easy to determine whether metastasis began early or late in the development of the primary
tumor or whether individual metastatic
sites were seeded directly
from the original
tumor or
from an intermediate
site.
Even a syringe of one's own stem cells taken
from one part of the body and squirted into another «may multiply, form
tumors, or may leave the
site you put them in and migrate somewhere else» the fda warns on its Web
site.
Results of a phase one trial show that an investigational topical drug, resiquimod gel, causes regression of both treated and untreated
tumor lesions and may completely remove cancerous cells
from both
sites in patients with early stage cutaneous T cell lymphoma (CTCL)-- a rare type of non-Hodgkin lymphoma that affects the skin.
These results, published in Nature Communications, have the potential to improve current cancer immunotherapy strategies, especially in relation to the prevention of metastasis (dissemination of the
tumor to organs distant
from the
site of origin).
The Ludwig Center at the University of Chicago --- under the direction of Ralph Weichselbaum, MD, the Daniel K. Ludwig Professor and Chair of the Department of Radiation and Cellular Oncology, and Geoffrey Greene, PhD, the Daniel K. Ludwig Professor in the Ben May Cancer Research Institute at the University of Chicago — will focus on metastasis, the process by which cancer cells migrate
from a primary
tumor to multiple distant
sites.
Furthermore, the genetic and expression profiles of malignant cells vary within individual
tumors, between
tumors at different
sites within the same patient, and among
tumors from different patients.
CXCR4 is a receptor that cancer cells use like antennae to feel their way
from their parent
tumor to distinct
sites in the body where they will establish a new
tumor.
One limitation of our study is the use of metastatic samples
from various organ
sites, potentially influencing expression via differences
from the organ - specific
tumor microenvironment.
While metastatic
sites may have originated
from the primary
tumor, several studies have demonstrated a different immunohistochemical or mutation profile compared to the primary.
However, access to
tumor from distant disease
sites may be feasible, raising the question of which tissue to study, the primary which is resected or the distant
sites which will need the benefit of systemic therapy.
Age,
tumor size,
tumor site, LNM, VI and HER2 / neu immunopositive stain as well as the immunostaining of ER and PR for the malignant group were obtained
from the Pathology Department, MRI.
We're home to the University of Chicago Ludwig Center for Metastasis Research, a multidisciplinary center dedicated to the research and treatment of metastasis — the process by which cancer cells spread
from a primary
tumor to one or more distant
sites.
Intensive local therapy was followed by up to a year of less intense systemic treatment with cis - retinoic acid (a derivative of vitamin A) and interferon in an effort to control any microscopic
tumors that had spread to distant
sites from the initial cancer.
Metastatic disease refers to cancer that has spread through the blood or lymph system to form new
tumors in other parts of the body distinct
from the original
site.
Johnson and Cole Labs uncover a new role for a
tumor suppressor in DNA repair (11/15/16) Work
from the Johnson lab previously showed that E2F1, a critical transcription factor target of the retinoblastoma (Rb)
tumor suppressor protein, localizes to
sites of both UV and IR induced DNA damage in a phosphorylation dependent manner.
We identified 134 mouse susceptibility genes
from 129 common insertion
sites within 34 mammary
tumors.
December 13, 2011 Molecular markers can predict spread of cancer, guide treatment Molecular markers found in cancer cells that have spread
from a primary
tumor to a limited number of distant
sites can help physicians predict which patients with metastatic cancer will benefit
from aggressive, targeted radiation therapy.
Identify an alternate paradigm of
tumor progression whereby metastases arise
from cells that disseminate
from the primary
site at any stage of primary
tumor progression and evolve independent
from the primary
tumor (i.e., parallel progression models).
Tumor growth in different glands is usually multifocal, (meaning the tumors develop in many sites), rather than from spread or seeding of tumor cells from a single initial
Tumor growth in different glands is usually multifocal, (meaning the
tumors develop in many
sites), rather than
from spread or seeding of
tumor cells from a single initial
tumor cells
from a single initial
site.
We believe that disrupting this niche will delay or prevent metastatic spread, and more importantly, protect
tumor sites from hemorrhage, which is the most common lethal event in this disease.
Other symptoms to look out for are clear, milky or bloody secretions coming
from the nipples; open sores that don't heal; ulcerated or necrotic (dead) tissue at the
site of the
tumor; and weight loss for no reason.
The liver is one of the main
sites in which metastases
from tumors of other parts of the body grow.
Tuohy knew
from experience that dogs with osteosarcoma often die even after the
tumor is removed, as the cancer spreads to distant
sites.
She had very little medical care during that time and so arrived in rescue with horrible dental problems, an infected former surgical
site and several mammary
tumors, not to mention the psychological problems
from years of living in a wire cage.
In autograft the
tumor site is removed
from the leg and then treated with a high dose of radiation to «kill» the
tumor.
A potential serious complication
from vaccination is the development of an injection
site sarcoma, a malignant
tumor that can arise at any subcutaneous (under the skin) injection
site.
Hematogenous metastatic brain
tumors commonly originate
from extracranial
sites.
The lungs are also one of the main
sites in which metastases
from tumors of other parts of the body grow.