Neuropilin-1 interacts with the second branchial arch microenvironment to mediate chick neural crest cell dynamics.
Neuropilin-1 interacts with the second branchial arch microenvironment to mediate chick neural crest cell dynamics.
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DOI:
10.1002/dvdy.22303
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发表时间:
2010-06
影响因子:
2.5
通讯作者:
Kulesa, Paul M.
中科院分区:
文献类型:
--
作者:
McLennan, Rebecca;Kulesa, Paul M.
Cranial neural crest cells (NCCs) require neuropilin signaling to reach and invade the branchial arches. Here, we use an in vivo chick model to investigate whether the neuropilin-1 knockdown phenotype is specific to the second branchial arch (ba2), changes in NCC behaviors and phenotypic consequences, and whether neuropilins work together to facilitate entry into and invasion of ba2. We find that cranial NCCs with reduced neuropilin-1 expression displayed shorter protrusions and decreased cell body and nuclear length-to-width ratios characteristic of a loss in polarity and motility, after specific interaction with ba2. Directed NCC migration was rescued by transplantation of transfected cells into rhombomere 4 of younger hosts. Lastly, reduction of neuropilin-2 expression by shRNA either solely or with reduction of neuropilin-1 expression did not lead to a stronger head phenotype. Thus, NCCs, independent of rhombomere origin, require neuropilin-1, but not neuropilin-2 to maintain polarity and directed migration into ba2.
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影响因子:
2.7
作者:
Berndt, Jason D.;Clay, Matthew R.;Langenberg, Tobias;Halloran, Mary C.
通讯作者:
Halloran, Mary C.
影响因子:
2.7
作者:
McLennan, Rebecca;Kulesa, Paul M.
通讯作者:
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影响因子:
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