Not exact matches
«One of the major and immediate downstream effects of myc activation is a dramatic
increase in the capacity of affected cells to make protein,» Ruggero said «This, in turn, leads to
increased cell survival and
proliferation, and to unstable genomes that foster additional mutations that turn these abnormal cells into
tumor cells.»
They found higher levels of JAK1 in resistant
tumors, which caused
increased expression of epidermal growth factor receptor (EGFR)-- a receptor tyrosine kinase that promotes cell
proliferation.
In the laboratory they showed how morphine can
increase proliferation, migration and invasion of
tumor cells.
However, an overactive stimulation of mTOR in response to nutrients and growth factors — metabolic processes that are crucial in
tumor biology — leads to an
increase in cell growth and
proliferation.
In a first set of experiments, postdoctoral researcher and co-lead author Max - Felix Häring found that insulin
increased the
proliferation of mouse epithelial
tumor cells in culture, as expected.
Increased transforming growth factor beta expression inhibits cell
proliferation in vitro, yet
increases tumorigenicity and
tumor growth of Meth A sarcoma cells.
Deletion of DGKζ from T cells results in prolonged TCR signal transduction downstream of DAG, resulting in enhanced activation of Ras,
increased effector T cell
proliferation, and amplified cytokine production, which leads to
increased antitumor activity against s.c. implanted EL4
tumors or murine mesothelioma (12, 16, 17).
Hyaluronidase Hyal1
increases tumor cell
proliferation and motility through accelerated vesicle trafficking.
Yet its contribution to
tumor cell
proliferation only
increases the evidence that changes in metabolism are a cause of cancer and not just a consequence, according to Leif Ellisen, a cancer genetics researcher and oncologist who directs the MGH Translational Research Laboratory.
They also show how this interaction can
increase proliferation, migration and invasion of
tumor cells, three hallmarks of cancer growth and spread.
Possible modes of hierarchy alteration are suggested as
increased self - renewal (a), dedifferentiation of early progenitor cells (b), and blocked
proliferation (c) of ER - α — positive and negative
tumors.
Tumor hypoxia is often linked to decreased survival in patients with breast cancer and has been shown to induce specific molecular changes in cells including changes that confer a more malignant phenotype such as
increased proliferation (3), survival (4), invasion (5), and metastasis (6).
Dr. Gollnick's laboratory explores how
tumor cells co-opt the host immune system to promote chronic inflammation that leads to
increased vascularization, suppression of anti-
tumor immunity and
increased tumor cell
proliferation and migration.
This disease - fighting nutrient can slow the growth and development of new blood vessels that nourish
tumors,
increase a type of programmed cancer cell death known as apoptosis and reduce the
proliferation of new cancer cells.