Evidence map›Paper›PMID 36475946›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2022

Septins mediate a microtubule-actin crosstalk that enables actin growth on microtubules.

Konstantinos Nakos, Md Noor A Alam, Megan R Radler, Ilona A Kesisova, Changsong Yang, Joshua Okletey, Meagan R Tomasso, Shae B Padrick, Tatyana M Svitkina, Elias T Spiliotis

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.5field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 34 citations in OpenAlex.

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  17. Functional Inhibition of Katanin Affects Synaptic Plasticity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  18. Article
  19. Article
  20. Protamine 2 deficiency results in Septin 12 abnormalities.Frontiers in cell and developmental biology · 2024
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Konstantinos NakosDepartment of Biology, Drexel University, Philadelphia, PA 19104.
Md Noor A AlamDepartment of Biology, Drexel University, Philadelphia, PA 19104.
Megan R RadlerDepartment of Biology, Drexel University, Philadelphia, PA 19104.
Ilona A KesisovaDepartment of Biology, Drexel University, Philadelphia, PA 19104.
Changsong YangDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104.
Joshua OkleteyDepartment of Biology, Drexel University, Philadelphia, PA 19104.
Meagan R TomassoDepartment of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA 19102.
Shae B PadrickDepartment of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA 19102.ORCID 0000-0002-6916-6194
Tatyana M SvitkinaDepartment of Biology, University of Pennsylvania, Philadelphia, PA 19104.
Elias T SpiliotisDepartment of Biology, Drexel University, Philadelphia, PA 19104.ORCID 0000-0003-1082-9763
Drexel University · USUniversity of Pennsylvania · US

Funding

Spatial control of membrane traffic by septin GTPasesR35GM136337 · NIGMS · UNIVERSITY OF VIRGINIA · PI Elias T Spiliotis · 2020 to 2026
$3.1M
Regulation of Microtubule-based Membrane Traffic by Septin GTPasesR01GM097664 · NIGMS · DREXEL UNIVERSITY · PI SPILIOTIS, ELIAS T · 2011 to 2019
$3.1M
Structure and functions of the actin cytoskeletonR35GM140832 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI Tatyana Svitkina · 2021 to 2026
$2.8M
NIGMS NIH HHS R01 GM097664NIGMS NIH HHS R35 GM136337NIGMS NIH HHS R35 GM140832
6 · The paper itself

Abstract

Cellular morphogenesis and processes such as cell division and migration require the coordination of the microtubule and actin cytoskeletons. Microtubule-actin crosstalk is poorly understood and largely regarded as the capture and regulation of microtubules by actin. Septins are filamentous guanosine-5'-triphosphate (GTP) binding proteins, which comprise the fourth component of the cytoskeleton along microtubules, actin, and intermediate filaments. Here, we report that septins mediate microtubule-actin crosstalk by coupling actin polymerization to microtubule lattices. Superresolution and platinum replica electron microscopy (PREM) show that septins localize to overlapping microtubules and actin filaments in the growth cones of neurons and non-neuronal cells. We demonstrate that recombinant septin complexes directly crosslink microtubules and actin filaments into hybrid bundles. In vitro reconstitution assays reveal that microtubule-bound septins capture and align stable actin filaments with microtubules. Strikingly, septins enable the capture and polymerization of growing actin filaments on microtubule lattices. In neuronal growth cones, septins are required for the maintenance of the peripheral actin network that fans out from microtubules. These findings show that septins directly mediate microtubule interactions with actin filaments, and reveal a mechanism of microtubule-templated actin growth with broader significance for the self-organization of the cytoskeleton and cellular morphogenesis.

Indexed as

ActinsSeptinsMicrotubulesActinsSeptinsactinactin–microtubule crosstalkgrowth conesmicrotubulesseptins

Identifiers

PMID36475946
PMCPMC9897426
OpenAlexW4311172191

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.