TY - JOUR
T1 - Phospholipase C-δ1 and -δ3 are essential in the trophoblast for placental development
AU - Nakamura, Yoshikazu
AU - Hamada, Yoshio
AU - Fujiwara, Takashi
AU - Enomoto, Hiroko
AU - Hiroe, Takeshi
AU - Tanaka, Satoshi
AU - Nose, Masato
AU - Nakahara, Masamichi
AU - Yoshida, Nobuaki
AU - Takenawa, Tadaomi
AU - Fukami, Kiyoko
PY - 2005/12
Y1 - 2005/12
N2 - Phosphoinositide-speciftc phospholipase C (PLC) is a key enzyme in phosphoinositide turnover and is involved in a variety of physiological functions. We analyzed PLCδ/ knockout mice and found that PLCδ1 is required for the maintenance of skin homeostasis. However, there were no remarkable abnormalities except hair loss and runting in PLCδ1 knockout mice, even though PLCδ1 is broadly distributed. Here, we report that mice lacking both PLCδ1 and PLCδ3 died at embryonic day 11.5 (E11.5) to E13.5. PLCδ1/PLCδ3 double-knockout mice exhibited severe disruption of the normal labyrinth architecture in the placenta and decreased placental vascularization, as well as abnormal proliferation and apoptosis of trophoblasts in the labyrinth area. Furthermore, PLCδ1/PLCδ3 double-knockout embryos supplied with a normal placenta by the tetraploid aggregation method survived beyond E14.5, clearly indicating that the embryonic lethality is caused by a defect in trophoblasts. On the basis of these results, we conclude that PLCδ1 and PLCδ3 are essential in trophoblasts for placental development.
AB - Phosphoinositide-speciftc phospholipase C (PLC) is a key enzyme in phosphoinositide turnover and is involved in a variety of physiological functions. We analyzed PLCδ/ knockout mice and found that PLCδ1 is required for the maintenance of skin homeostasis. However, there were no remarkable abnormalities except hair loss and runting in PLCδ1 knockout mice, even though PLCδ1 is broadly distributed. Here, we report that mice lacking both PLCδ1 and PLCδ3 died at embryonic day 11.5 (E11.5) to E13.5. PLCδ1/PLCδ3 double-knockout mice exhibited severe disruption of the normal labyrinth architecture in the placenta and decreased placental vascularization, as well as abnormal proliferation and apoptosis of trophoblasts in the labyrinth area. Furthermore, PLCδ1/PLCδ3 double-knockout embryos supplied with a normal placenta by the tetraploid aggregation method survived beyond E14.5, clearly indicating that the embryonic lethality is caused by a defect in trophoblasts. On the basis of these results, we conclude that PLCδ1 and PLCδ3 are essential in trophoblasts for placental development.
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U2 - 10.1128/MCB.25.24.10979-10988.2005
DO - 10.1128/MCB.25.24.10979-10988.2005
M3 - Article
C2 - 16314520
AN - SCOPUS:28544450506
SN - 0270-7306
VL - 25
SP - 10979
EP - 10988
JO - Molecular and Cellular Biology
JF - Molecular and Cellular Biology
IS - 24
ER -