Limb regeneration in Xenopus laevis froglet.
Limb regeneration in amphibians is a representative process of epimorphosis. This type of organ regeneration, in which a mass of undifferentiated cells referred to as the "blastema" proliferate to restore the lost part of the amputated organ, is distinct from morphallaxis as observed, for instance, in Hydra, in which rearrangement of pre-existing cells and tissues mainly contribute to regeneration. In contrast to complete limb regeneration in urodele amphibians, limb regeneration in Xenopus, an anuran amphibian, is restricted. In this review of some aspects regarding adult limb regeneration in Xenopus laevis, we suggest that limb regeneration in adult Xenopus, which is pattern/tissue deficient, also represents epimorphosis.
Suzuki
Makoto
M
Department of Developmental Biology and Neurosciences, Graduate School of Life Sciences, Tohoku University, Aobayama Aoba-ku, Sendai 980-8578, Japan.
Yakushiji
Nayuta
N
Nakada
Yasuaki
Y
Satoh
Akira
A
Ide
Hiroyuki
H
Tamura
Koji
K
D000818:Animals; D002454:Cell Differentiation; D005121:Extremities / Q000033:anatomy & histology / Q000294:innervation / Q000502:physiology*; D012038:Regeneration; D014714:Vertebrates / Q000502:physiology; D014982:Xenopus laevis / Q000033:anatomy & histology / Q000254:growth & development / Q000502:physiology*