Category: C

The separation of cells from one another, based on physical or chemical properties. Cell-separation techniques are used to collect uniform populations of cells from tissues or fluids in which many different cell types are present. The collected cells can then be used for transplantation or scientific study. Common methods of separating cells include cloning, centrifugation,…

An apparatus that aspirates extravasated blood in an operative field; after appropriate filtration the blood may be returned to the patient. This device cannot be used when the blood returned to the patient may be infected or contaminated (e.g., in perforated diverticulitis).  

A peptide that readily crosses cell membranes and therefore can influence cellular functions or can carry other molecules that can directly or indirectly perform the same tasks.  

In embryology, the mass of cells that develops into an organ or structure.  

A group of identical cells that can be maintained in the laboratory indefinitely because they are able to thrive and reproduce themselves in vitro.  

In antineoplastic therapy, the number of malignant tumor cells destroyed by a treatment.  

The order of physical and biochemical events that occur during the growth of cells. In tissue culture studies, the cyclic changes are divided into specific periods or phases: the DNA synthesis or S period, the G2 period or gap, the M or mitotic period, and the G1 period.  

Pertaining to fluids or tissues that contain no cells or in which all the cells have been disintegrated by laboratory treatment.  

The use of living cells as therapeutic agents. Possible examples include dendritic cells, to initiate immune responses to particular cancers; stem cells, as a source for tissue replacement, repair, or gene delivery; and tumor cells, to create antigen targets for the immune system.  

A cell with height about equal to width and depth.