The study doesn't explain why
T cells target the hypocretin cells specifically, says Mignot.
CAR
T cells target and kill cancer cells via bioengineered T - cell receptors.
Different CARs determine what types of tumors
T cells target.
The researchers also found that when they delivered an antibody, IL - 2, and
T cells targeted to the tumor, the adoptively transferred T cells killed cancer cells much more successfully than when only T cells were delivered.
When given to diseased mice, the engineered
T cells targeted and killed B cells that express antibodies targeting desmoglein 3, hinting that such a strategy may be an effective way to treat antibody - driven autoimmune diseases.
It provided the first evidence that CAR
T cells targeting an antigen other than CD19 can also mediate impressive antitumor effects.
Taken together, our studies demonstrate that PSCA and MUC1 are both promising CAR
T cell targets in NSCLC and that the combinatorial targeting of these antigens could further enhance the antitumor efficacy of CAR T cells.
Not exact matches
Consider: Last year alone, the FDA approved two treatments, from Novartis and Gilead, that literally reengineer patients» immune
T -
cells to
target and destroy blood cancers.
«The holy grail is to
target a piece of the virus by antibody or
t cell,» Tom Evans, the CEO of a company called Vaccitech that is working on a universal vaccine they hope can be used to treat all strains of influenza A, told National Geographic.
The institute, which includes over 40 laboratories and more than 300 researchers, said the research would focus on modifying a patient's own immune system
T -
cells to
target a tumor, studying ways to boost patient response to current immunotherapy drugs.
Those two companies, along with their larger competitor Novartis (nvs), are developing experimental chimeric antigen receptor
T -
cell (CAR -
T) technology platforms, which are highly personalized treatments that involve extracting patients» immune
cells, re-engineering them to
target their specific cancers, and then pumping these sniper -
cells back into the body.
For example, CRAC channels in
T cells have been clinically validated as important drug
targets through human mutations and the use of calcineurin inhibitors that act downstream from CRAC channels.
His work indicates that this
cell surface marker could serve as a
target for a novel brain cancer vaccine or
T -
cell therapies engineered to recognize and kill tumors carrying that neoantigen.
Key findings presented at AACR included sustained peripheral NK and
T cell expansion, doses were well - tolerated and the drug candidate's role as a long - acting CD122 agonist without
targeting CD25.
Even before treatment, cancer patients in the study had a small number of infection - and tumor - fighting
T cells that
target these unusual proteins, the researchers found.
New HIV particles are released into the bloodstream, where they
target other
T -
cells, and the process starts all over again.
Each epitope is
targeted by a pool of
T cells bearing different, but specific,
T cell receptors to recognize and respond.
Other CAR -
T cells that were tuned to different molecular
targets also did not kill the DIPG cancer
cells.
In reaction to infection or inflammation, immune system
cells known as effector
T cells (Teffs) undergo rapid changes - arming themselves and diversifying into groups that
target specific diseased
cells.
Seven to eight weeks after the tumor was established, each mouse received one intravenous injection of GD2 CAR -
T cells or, as a control treatment, an injection of CAR -
T cells that react to a different
target.
We designed chimeric antigen receptor (CAR)
T cells that specifically
target podoplanin (PDPN), a key protein for the progression of solid tumors, including GBM.»
To begin the research, the scientists screened human DIPG tumor cultures for surface molecules that could act as
targets for CAR -
T cells.
This temporal proximity probably causes the
T cell to become highly aggressive and efficient in attacking its
target antigen.
«Considering that PDPN is associated with poor prognosis in GBM, CAR
T -
cell therapy that
targets this protein is promising for treatment of patients with relapsed or resistant tumors following first - line chemotherapy,» says Toshihiko Wakabayashi, a coauthor and the chair of Department of Neurosurgery Nagoya University School of Medicine.
When dendritic
cells not only signal myelin as a «
target substance,» but also secrete the messenger substance IL - 6, a sort of molecular switch is flipped in the
T cells.
Which areas in the body are
targeted by
T cells and the impact they will have depends on various factors.
The researchers found that HIV spiked into semen was more successful than the virus alone at infecting
T cells and macrophages (immune system
cells that are believed to be the infection's initial
targets in the body).
«Injecting the human blood
cells resulted in massive liver
cell damage and we were able to detect cytotoxic
T lymphocytes that specifically
targeted hepatitis B virus in liver infiltration
cells.
They found that hepatitis in these «human hepatocyte chimeric mice» was caused by white blood
cells known as cytotoxic
T lymphocytes (CTLs) that were specifically
targeted to hepatitis B virus.
Unlike chemotherapy and radiation — which indiscriminately damage
cells and tissues, healthy or otherwise — the CD45 -
targeting antibodies leave the thymus and the bone marrow, environments critical to the formation of
T cells and innate immune
cells, unharmed.
T cells genetically engineered to make the chimeric antigen receptor can recognize and
target tumor
cells.
«This is a treatment that, rather than
targeting cancer
cells themselves,
targets the immune response, reactivating the
T cells in the neighborhood of the tumor
cells,» Shipp remarked.
CTL119 manufacturing begins with a patient's own
T cells, some of which are removed and then reprogrammed in Penn's Clinical
Cell and Vaccine Production Facility with a gene transfer technique designed to teach the
T cells to
target and kill tumor
cells.
One arm of the antibody activates
T cells and another arm binds to a tumor
target.
By manipulating the function of certain immune
cells, called
T cells, researchers could help restore the system's balance and create new treatments to
target these diseases.
Pembrolizumab and nivolumab, for example, the newest inhibitors to win FDA approval,
target a checkpoint called PD - 1, through which tumors can induce a
T cell to deactivate.
Chimeric antigen receptor (CAR)
T -
cell therapies utilize a patient's own
T cells that have been genetically engineered to bind to a specific antigen on
target cancer
cells.
The BWH team also plans to explore whether
targeting these unique
T -
cells hold promise as a treatment for rheumatoid arthritis.
Blood testing showed an expansion in the numbers of CD19 -
targeted CAR
T -
cells that coincided with the tumor's regression.
Participants with high - risk bacterial communities, which are commonly found in the population of women studied, also had increased numbers of genital CD4 +
T cells — white blood
cells that are HIV's primary
target.
However, in some patients, the leukemia recurred without the CD19
target and expressed a protein that the CAR
T cells were unable to recognize — CD22.
In PLAT - 02, the CAR
T cells are reprogrammed to recognize and
target the CD19 protein that is expressed by most precursor B acute lymphoblastic leukemia
cells.
They will examine the safety and feasibility of administering cancer - fighting chimeric antigen receptor (CAR)
T cells that have been reprogrammed to
target the CD22 protein expressed by some leukemia
cells.
As with innate immunity, the adaptive immune system — the
T cells and antibodies produced by B
cells that
target specific molecules on invading
cells — contributes to pathology or may also fight against it.
Researchers are also working to develop a trial where they will reprogram CAR
T cells to identify the CD19 and CD22 proteins simultaneously, enabling them to
target the cancer
cells from more than one angle with the initial round of
T -
cell immunotherapy.
«Research into basic workings of immune system points to way of improving therapies for cancer: Differences in wiring of «exhausted» and effective
T cells indicate possible gene - editing
targets.»
Researchers used IL - 15 to develop a whole tumor
cell vaccine to
target breast (
TS / A) and prostate (TRAMP - C2) cancer
cells in animal models; results showed that tumor
cells stopped growing after the vaccine was introduced and that beneficial effects were enhanced further when IL - 15Rα was co-produced by the vaccine
cells.
CAR
T cells are
T cells that are removed from a patient, genetically engineered to grow a protein «sensor» that
targets them to tumor
cells, and then re-injected into the patient.
The study, «Anti-TNF drives regulatory
T cell expansion by paradoxically promoting membrane TNF - TNF - RII binding in rheumatoid arthritis,» which will be published online June 6 in The Journal of Experimental Medicine, may help explain the divergent efficacies of different TNF -
targeting drugs.
Because previous work in rats and monkeys has found that proteins that block the costimulatory signal can hold
T cells at bay, Kim Olthoff, a transplant surgeon at the University of Pennsylvania Medical Center in Philadelphia, thought her team could achieve a
targeted immune suppression by getting the transplanted organ itself — rather than proteins injected into the bloodstream — to block the costimulatory signal.