activated cells

activated cells

Cells that have changed in response to a stimulus. Examples are macrophages, oocytes and neutrophil polymorphs.
References in periodicals archive ?
Genetic analysis of the activated cells in the two groups of mice showed that the neurons triggered by a full belly released glutamate, a chemical that nerve cells use to signal one another, while the neurons triggered by hunger released a different neurotransmitter, known as GABA.
The activated cells converging to the neuronal lesions, as well as the delay and the effect on the neurons, will be characterized.
These activated cells release compounds called cytokines that can excite nerves carrying pain sensation (nociceptive pathways) and cause the person to experience mildly uncomfortable stimuli as very painful (hyperalgesia), or stimuli that would normally induce no discomfort at all as painful (allodynia).
This is not surprising, because the cells that recognize the virus become activated as a result, and HIV grows much faster in activated cells.
To overcome this obstacle, treatments have been designed to harvest immune cells from the cancer patient's blood, activate these cells outside the patient, and then inject the activated cells back into the patient to jumpstart their immune response against the cancer.
However, Tantin noted that the signaling cues used by Oct1 in activated cells were missing in resting memory T cells that had previously been activated, indicating that there must be another factor needed for Il2 expression.
New cells are continuously arriving while activated cells are leaving," said Mooney.
By specifically targeting the activated cells, SGN-70 may reduce the damaging effects of autoimmune disease without globally suppressing the immune system.
In the new research, Li's team shows that immune cells exposed to Tat display on their surface proteins that are characteristic of activated cells.
Although activated cells are programmed for cell death, or apoptosis, activated immune cells produce an inhibitor of apoptosis, called c-FLIP, to avoid death and carry out their immune function.
LLLM studies of immune-system cells being stimulated by foreign particles or other cells, for example, show rapid and drastic chemical changes inside the activated cells.