Rab35 and its effectors promote formation of tunneling nanotubes in neuronal cells

Shaarvari Bhat, Nina Ljubojevic, Seng Zhu, Mitsunori Fukuda, Arnaud Echard, Chiara Zurzolo

研究成果: Article査読


Tunneling nanotubes (TNTs) are F-actin rich structures that connect distant cells, allowing the transport of many cellular components, including vesicles, organelles and molecules. Rab GTPases are the major regulators of vesicle trafficking and also participate in actin cytoskeleton remodelling, therefore, we examined their role in TNTs. Rab35 functions with several proteins that are involved in vesicle trafficking such as ACAP2, MICAL-L1, ARF6 and EHD1, which are known to be involved in neurite outgrowth. Here we show that Rab35 promotes TNT formation and TNT-mediated vesicle transfer in a neuronal cell line. Furthermore, our data indicates that Rab35-GTP, ACAP2, ARF6-GDP and EHD1 act in a cascade mechanism to promote TNT formation. Interestingly, MICAL-L1 overexpression, shown to be necessary for the action of Rab35 on neurite outgrowth, showed no effect on TNTs, indicating that TNT formation and neurite outgrowth may be processed through similar but not identical pathways, further supporting the unique identity of these cellular protrusions.

ジャーナルScientific reports
出版ステータスPublished - 2020 12 1

ASJC Scopus subject areas

  • General

フィンガープリント 「Rab35 and its effectors promote formation of tunneling nanotubes in neuronal cells」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。