cytokenes

Question 1

define: cytokenes

Answer 1

cell signalling molecuels that do cell-to cell communication in immune responses and stimulate movement of cells towards sites of inflammation, infection and trauma

Question 2

chemical structures?

Answer 2

• Many peptides, some proteins/glycoproteins

Question 3

where are cytokenes secreted

Answer 3

mainly by mamalian immune cells

Question 4

effects?

Answer 4

stimulatory/inhibitory/regulatory

Question 5

can be chemical _____ or chemical ______

Answer 5

mediators (enhance/activate function of other proteins) or modulators (directly influence other molecules) f

Question 6

can same cytokenes produce different responeses in different cells?

Answer 6

yes

Question 7

cytokenes usually act….

Answer 7

briefly, locally and at low concentrations

Question 8

describe signal tranduction

Answer 8

• Released from signalling cell and diffuse to nearby target cells, bind to receptor, signal transduction occurs (cytokenes related genes are switched on/off) and responses occur