ENGR213_lecture3

ENGR213_lecture3 - Cell Signaling and Cellular...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
    Cell Signaling and  Cellular Communication Lecture 3
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
    What is Cell Signaling ? Cell signaling   – is part of a complex system of communication  that governs basic cellular activities and  coordinates cell actions. – or more simply put, it is the process by which  one cell communicates with another cell to  influence its behavior
Background image of page 2
    Some Key Nomenclature Receptor  --  a protein, usually in the cell membrane, that binds  a signal molecule that initiates a cellular response. Cell surface  receptors. Ligand  --  Any molecule that binds to a specific site on a  protein, e.g., a receptor protein, or other molecules.The signal  or message Vesicle  --  Small, membrane-bounded sac that stores substances  within a cell. Endocytosis  --  the uptake of material into a cell cytoplasm via  membranous vesicles or vacuoles. Exocytosis  --  the process by which “most” molecules are  secreted from a eukaryotic cell. (membrane bound vesicles) Metabolism  -- the sum total of chemical processes that take  place in living cells Signal Molecule  -- Extracellular or intracellular molecule that 
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
    Some Key Nomenclature Paracrine signaling  --  “short-range” cell-cell communication  via secreted signal molecules that act on adjacent cells Synaptic signaling   --  cell-cell communication that occurs  across chemical synapses in the nervous system  Autocrine signaling  -- secreted signal that can bind back to the  sending cell Endrocrine cell  --Specialized eukaryotic cell that secretes  hormone into the blood stream, usually part of gland, e.g.  thyroid or pituitary gland Hormones  --  Signal molecules secreted by a endocrine cell into  the bloodstream, which can then carry it to a distant target cell
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/02/2008 for the course ENGR 213 taught by Professor Clague during the Winter '08 term at Cal Poly.

Page1 / 22

ENGR213_lecture3 - Cell Signaling and Cellular...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online