The study found that curcumin is able to induce apoptosis (
normal programmed cell death) in the most resistant breast cancer cells that lack estrogen receptors.
Often these mutations make the cancer cells resistant to
normal programmed cell death, and the cells will divide over and over, forming a solid tumor.
Not exact matches
During
normal development, epigenetic
programming restricts both the genes a
cell can use and the
cell's developmental potency.
However, when the researchers knocked out SIRT1 in endothelial
cells of 10 - month - old mice, then put them on a four - week treadmill running
program, they found that the exercise did not produce the same gains seen in
normal 10 - month - old mice on the same training plan.
One difference that is clear is that exhausted T
cells express the
programmed cell death protein - 1 (PD - 1), which commands them not to attack
normal, healthy
cells, but can also prevent them from striking at cancerous or chronically infected
cells.
Multiple mutations in DNA — specifically, abnormalities in the p21 and p53 genes, among other changes — stop the process of apoptosis, or
programmed cell death, that
normal cells undergo.
«Under
normal circumstances, myofibroblasts stimulate wound healing, but when there's an ongoing injury to an organ (e.g., the liver of a hepatitis C patient, the heart of a patient with high blood pressure, or the kidney of a patient with diabetes) these proteins clog up
normal functioning,» said Humphreys, a Harvard Medical School associate professor at Brigham and Women's Hospital, who leads the Harvard Stem
Cell Institute Kidney
Program.
Along with restoring structure and function to the p53 mutant protein, this drug compound has the ability to to activate a
program that selectively kills cancer
cells with this particular mutation while leaving
normal cells undisturbed.
Perhaps during
normal inflorescence development, SMs poised to become bristles accumulate higher levels of BR, resulting in local increased
cell division and expansion, loss of boundary identity genes, and repression of the SM identity
program.
Paligenosis, Mills explains, appears similar to apoptosis — the
programmed death of
cells as a
normal part of an organism's growth and development — in that it seems to happen the same way in every
cell, regardless of its location in the body.
«Thanks to improvements in the understanding of AML biology, a multiplicity of so - called targeted therapies and therapies based on differential pathophysiology of leukemic stem
cells compared with
normal counterparts have emerged,» noted Richard M. Stone, MD, clinical director of the Adult Leukemia
Program at Dana - Farber Cancer Institute in Boston, and colleagues, writing in a review for the ASCO 2017 Educational Book.
In particular, the scientists want to know more about how the vitamin influences the genetic
programming of an embryo, which specific
cells are impacted, and precisely how much retinoic acid is required for
normal development.
In embryos where the mix of
normal and abnormal
cells was half and half, the researchers observed that the abnormal
cells within the embryo were killed off by «apoptosis», or
programmed -
cell death, even when placental
cells retained abnormalities.
These findings suggest that cancer
cells subvert key genetic
programs that guide immature
cells to build organs during
normal growth.
Our
cells have built - in
programming that sometimes veers them far away from their
normal fate.
U.S. Military HIV Research
Program (MHRP) researchers, however, have demonstrated that essentially all of the infectious virus particles can bind to the surface of red blood
cells isolated from each of 30
normal (non-infected) human donors.
New data and research approaches have created opportunities for researchers to study in detail many aspects of cancer biology, including how the
normal biological
programs of
cell proliferation and death are altered during cancer and how the immune system responds to tumors.
NCI supports and directs research on the biological differences between
normal cells and cancer
cells through a variety of
programs and approaches.
Because
programmed cell death goes awry in leukemias and other cancers, Hu is currently examining lincRNA - EPS's function in
normal and diseased human
cells in an effort to determine whether it plays a role in tumor development and growth.
In the breast, cancer stem
cells and
normal stem
cells can arise from different
cell types and tap into distinct yet related stem
cell programs, according to Whitehead Institute researchers.
This
program has provided the first comprehensive picture of how a gene normally associated with cancer can influence development, survival and
normal function of brain
cells central to age - associated neurodegenerative disorders such as Parkinson's disease.
Apoptosis is the
programmed activity of a
cell's self destruction or suicide, which is common with
normal cells to make way for new replacement
cells.
Anti-apoptotic proteins in cancer
cells were inhibited, while
normal cells» apoptotic
programming was left intact.
To determine whether or not the damaging effects on cancer
cells would affect
normal cells — which are already
programmed normally for apoptosis — they doused both cancerous liver
cells and
normal liver
cells with CVE to examine the process of inducing apoptosis, which involves creating DNA damage as a precursor.
This is
normal and to be expected when
cells that have been
programmed for decades to burn primarily glucose are now being deprived of this main fuel.
One of the functions of progesterone is to «turn on» the genetic
programming that tells both
normal and cancerous
cells to die at the proper time.
It can also kill many different types of cancer
cells by triggering apoptosis (
programmed cell death) without affecting
normal cells.
✓ Cytotoxicity — WGA has been demonstrated to be cytotoxic to both
normal and cancerous
cell lines, capable of inducing either
cell cycle arrest or
programmed cell death (apoptosis).
The virus activates growth - promoting genes in the DNA (oncogenes), at the same time it inactivates suppressor genes that would normally limit
cell proliferation and alters the genes that regulate
normal,
programmed cell death.