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מהו איתות תאי?
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes.…
איתות חיידקי
At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that…
איתות שמרים
Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes—cells that have a nucleus. Cell signaling in yeast is similar to…
איתות תלוי מגע
Contact-dependent signaling uses specialized cytoplasmic channels between cells that allow the flow of small molecules between them. In animal cells,…
איתות אוטוקריני
Secreted signals can act on a variety of target cells. In some cases, the cell that secretes a signal also detects and responds to the signaling…
איתות פאראקריני
Paracrine signaling allows cells to communicate with their immediate neighbors via secretion of signaling molecules. The signal only triggers a…
איתות סינאפטי
Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be…
חלבוני G מצומדי קולטנים
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that…
קולטנים פנימיים
Many cellular signals are hydrophilic and therefore cannot pass through the plasma membrane. However, small or hydrophobic signaling molecules can…
איתות אנדוקריני
Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the…
מה שליחים שניוניים?
Because many receptor binding ligands are hydrophilic, they do not cross the cell membrane and thus their message must be relayed to a second…
מפלי איתות תוך תאי
Intracellular signaling cascades amplify a signal originating extracellularly and directs it to its intended intracellular target resulting in…
תעלות יונים
Ion channels maintain the membrane potential of a cell. For most cells, especially excitable ones, the inside has a more negative charge than the…
קולטנים קשורי-אנזים
Enzyme-linked receptors are proteins which act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of…
הקרנת חלקיקים ביואקטיביים בתאי החיסון Phagocytic עבור מעכבי איתות כמו קולטן איתות
Pharmacological regulation of Toll-like receptor (TLR) responses holds great promise in the treatment of many inflammatory diseases. However, there…
הדמית חיה בזמן אמת של T-תא איתות גיבוש קומפלקס
Protection against infectious diseases is mediated by the immune system 1,2. T lymphocytes are the master coordinators of the immune system,…
זיהוי של איתות תאיים אירועים מושרה תאים קיימא על ידי אינטראקציה עם תאים שכנים מוות של תאים אפופטוטיים שעברו
Cells dying by apoptosis, also referred to as regulated cell death, acquire multiple new activities that enable them to influence the function of…

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