Presentation 2006-03-15
Filopodial elongation mechanism controled by actin filament in a neural growth cone
Tomofumi FUKATA, Yuichi SAKUMURA, Kaoru KATOH, Shin ISHII,
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Abstract(in English) There exist many protrusions called filopodias at a neural axon terminal. Filopodial movements are driven by actin polymerization. The Elastic Brownian Ratchet (EBR) model and the Lock, Load, and Fire (LLF) model explain how actin filaments push the cell membrane. This study explores which is a more possible model by comparing the filopodial movements obtained from simulations with those from experimental images. Our simulation results suggest that a single actin filament is insufficient to reproduce the movement of real filopodia for both models. We also show that EBR model is superior to LLF model in reproducibility of experimental data and controllability of dynamic behaviors of growth cones.
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Keyword(in English) Filopodia / Actin filament / Elastic brownian ratchet / Growth cone
Paper # NC2005-112
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Committee NC
Conference Date 2006/3/8(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Filopodial elongation mechanism controled by actin filament in a neural growth cone
Sub Title (in English)
Keyword(1) Filopodia
Keyword(2) Actin filament
Keyword(3) Elastic brownian ratchet
Keyword(4) Growth cone
1st Author's Name Tomofumi FUKATA
1st Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology()
2nd Author's Name Yuichi SAKUMURA
2nd Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
3rd Author's Name Kaoru KATOH
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology Tsukuba Central
4th Author's Name Shin ISHII
4th Author's Affiliation Graduate School of Information Science, Nara Institute of Science and Technology
Date 2006-03-15
Paper # NC2005-112
Volume (vol) vol.105
Number (no) 657
Page pp.pp.-
#Pages 6
Date of Issue