TY - JOUR
T1 - Contact inhibition of locomotion in vivo controls neural crest directional migration
AU - Carmona-Fontaine, Carlos
AU - Matthews, Helen K.
AU - Kuriyama, Sei
AU - Moreno, Mauricio
AU - Dunn, Graham A.
AU - Parsons, Maddy
AU - Stern, Claudio D.
AU - Mayor, Roberto
PY - 2008/12/18
Y1 - 2008/12/18
N2 - Contact inhibition of locomotion was discovered by Abercrombie more than 50 years ago and describes the behaviour of fibroblast cells confronting each other in vitro, where they retract their protrusions and change direction on contact(1,2). Its failure was suggested to contribute to malignant invasion(3-6). However, the molecular basis of contact inhibition of locomotion and whether it also occurs in vivo are still unknown. Here we show that neural crest cells, a highly migratory and multipotent embryonic cell population, whose behaviour has been likened to malignant invasion(6-8), demonstrate contact inhibition of locomotion both in vivo and in vitro, and that this accounts for their directional migration. When two migrating neural crest cells meet, they stop, collapse their protrusions and change direction. In contrast, when a neural crest cell meets another cell type, it fails to display contact inhibition of locomotion; instead, it invades the other tissue, in the same manner as metastatic cancer cells(3,5,9). We show that inhibition of non-canonical Wnt signalling abolishes both contact inhibition of locomotion and the directionality of neural crest migration. Wnt- signalling members localize at the site of cell contact, leading to activation of RhoA in this region. These results provide the first example of contact inhibition of locomotion in vivo, provide an explanation for coherent directional migration of groups of cells and establish a previously unknown role for noncanonical Wnt signalling.
AB - Contact inhibition of locomotion was discovered by Abercrombie more than 50 years ago and describes the behaviour of fibroblast cells confronting each other in vitro, where they retract their protrusions and change direction on contact(1,2). Its failure was suggested to contribute to malignant invasion(3-6). However, the molecular basis of contact inhibition of locomotion and whether it also occurs in vivo are still unknown. Here we show that neural crest cells, a highly migratory and multipotent embryonic cell population, whose behaviour has been likened to malignant invasion(6-8), demonstrate contact inhibition of locomotion both in vivo and in vitro, and that this accounts for their directional migration. When two migrating neural crest cells meet, they stop, collapse their protrusions and change direction. In contrast, when a neural crest cell meets another cell type, it fails to display contact inhibition of locomotion; instead, it invades the other tissue, in the same manner as metastatic cancer cells(3,5,9). We show that inhibition of non-canonical Wnt signalling abolishes both contact inhibition of locomotion and the directionality of neural crest migration. Wnt- signalling members localize at the site of cell contact, leading to activation of RhoA in this region. These results provide the first example of contact inhibition of locomotion in vivo, provide an explanation for coherent directional migration of groups of cells and establish a previously unknown role for noncanonical Wnt signalling.
U2 - 10.1038/nature07441
DO - 10.1038/nature07441
M3 - Article
SN - 1476-4687
VL - 456
SP - 957
EP - 961
JO - NATURE
JF - NATURE
IS - 7224
ER -
