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Untitled - D Ank Unlimited

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Flt3 ligand 277 fluorescein isothiocyanate (FITC)<br />

Count<br />

Count<br />

31<br />

18<br />

0<br />

0.1 1000<br />

Negative flow crossmatch.<br />

0<br />

0.1 1000<br />

Positive flow crossmatch.<br />

for numerous very different, highly specialized assays. It is<br />

a multifactorial analysis technique and provides the capability<br />

for performing many of these assays simultaneously.<br />

Flt3 ligand<br />

A hematopoietic growth factor significant in NK cell development.<br />

It is related to the macrophage colony-stimulating<br />

factor, which binds to a receptor termed fms. Thus Flt3 is a<br />

Time<br />

Time<br />

Time<br />

Time<br />

Time<br />

Data<br />

processor<br />

receptor termed fms-like tyrosine kinase 3, and Flt3-L is its<br />

ligand. Flt3-L is synthesized by bone marrow stromal cells.<br />

fludarabine<br />

A nucleoside precursor that becomes a purine analogue<br />

known as F-ara-A following injection into a human or<br />

other animal. F-ara-A enters and accumulates in cells in a<br />

phosphorylated form (F-ara-Appl), which inhibits cell proliferation<br />

mainly by blocking ribonucleotide reductase and<br />

DNA polymerase. Its incorporation into DNA inhibits DNA<br />

ligase, while incorporation into RNA blocks transcription.<br />

An anticancer drug used to treat low-grade leukemias and<br />

lymphomas, it has been used in transplantation to facilitate<br />

graft acceptance when used in combination with low doses of<br />

other immunosuppressive drugs. Toxicity is relatively low.<br />

fluid mosaic model<br />

A fluid lipid molecular bilayer in the plasma membrane and<br />

organelle membranes of cells. This structure permits membrane<br />

proteins and glycoproteins to float. The lipid molecules<br />

are situated in a manner that arranges the polar heads toward<br />

the outer surfaces and their hydrophobic side chains project<br />

into the interior. There can be lateral movement of molecules<br />

in the bilayer plain or they may rotate on their long<br />

axes. This is the Singer–Nicholson fluid mosaic. The bilayer<br />

consists of glycolipids and phospholipids. Amphipathic lipids<br />

and globular proteins are spaced throughout the membrane.<br />

The fluid consistency permits movement of the receptors,<br />

proteins, and glycoprotein laterally.<br />

FluMist ®<br />

Contains live attenuated influenza viruses that reproduce in<br />

the nasopharynx of the recipient and are present in respiratory<br />

secretions.<br />

fluorescein<br />

A yellow dye that stains with brilliant apple-green fluorescence<br />

when excited. Its isothiocyanate derivative is widely employed<br />

to label proteins such as immunoglobulins that are useful in<br />

diagnostic medicine as well as in basic science research.<br />

fluorescein isothiocyanate (FITC)<br />

A widely used fluorochrome for labeling antibody<br />

molecules. It may also be used to label other proteins.<br />

Fluorescein-labeled antibodies are popular because they<br />

Flow cytometry is a fast, accurate way to measure multiple characteristics of a single cell simultaneously. These objective measurements are made one cell<br />

at a time at routine rates of 500 to 4000 particles per second in a moving fluid stream. A flow cytometer measures relative size (FSC), relative granularity<br />

or internal complexity (SSC), and relative fluorescence. Three-color flow cytometry is used to analyze blood cells by size, cytoplasmic granularity, and<br />

surface markers labeled with different fluorochromes.<br />

SSC<br />

FSC<br />

Orange<br />

Green<br />

FSC<br />

SSC<br />

Green<br />

Orange<br />

Red<br />

F

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