J 2024

Dynamic microvilli sculpt bristles at nanometric scale

IKEDA, Kyojiro N, Ilya BELEVICH, Luis ZELAYA-LAINEZ, Lukas OREL, Josef FÜSSL et. al.

Basic information

Original name

Dynamic microvilli sculpt bristles at nanometric scale

Authors

IKEDA, Kyojiro N, Ilya BELEVICH, Luis ZELAYA-LAINEZ, Lukas OREL, Josef FÜSSL, Jaromír GUMULEC (203 Czech Republic, belonging to the institution), Christian HELLMICH, Eija JOKITALO and Florian RAIBLE

Edition

Nature Communications, BERLIN, NATURE PORTFOLIO, 2024, 2041-1723

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30105 Physiology

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 16.600 in 2022

Organization unit

Faculty of Medicine

UT WoS

001221986200032

Keywords in English

Actin; Morphogenesis; Nanoscale materials

Tags

Tags

International impact, Reviewed
Změněno: 9/7/2024 13:37, Mgr. Tereza Miškechová

Abstract

V originále

Organisms generate shapes across size scales. Whereas patterning and morphogenesis of macroscopic tissues has been extensively studied, the principles underlying the formation of micrometric and submicrometric structures remain largely enigmatic. Individual cells of polychaete annelids, so-called chaetoblasts, are associated with the generation of chitinous bristles of highly stereotypic geometry. Here we show that bristle formation requires a chitin-producing enzyme specifically expressed in the chaetoblasts. Chaetoblasts exhibit dynamic cell surfaces with stereotypical patterns of actin-rich microvilli. These microvilli can be matched with internal and external structures of bristles reconstructed from serial block-face electron micrographs. Individual chitin teeth are deposited by microvilli in an extension-disassembly cycle resembling a biological 3D printer. Consistently, pharmacological interference with actin dynamics leads to defects in tooth formation. Our study reveals that both material and shape of bristles are encoded by the same cell, and that microvilli play a role in micro- to submicrometric sculpting of biomaterials.

Links

NU22J-08-00062, research and development project
Name: Mechanická a morfologická high-throughput fenotypizace nádorových buněk během smykového napětí: prediktor migračního a invazivního potenciálu
Investor: Ministry of Health of the CR, Subprogram 2 - junior