Evidence map›Paper›PMID 35450824›Full record

ArticleBiophysical journal2022

Measurement of the persistence length of cytoskeletal filaments using curvature distributions.

Pattipong Wisanpitayakorn, Keith J Mickolajczyk, William O Hancock, Luis Vidali, Erkan Tüzel

Open access · greenAbstract read
In one paragraph

Article in Biophysical journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 21 citations in OpenAlex.

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  6. Vimentin undergoes liquid-liquid phase separation to form droplets which wet and stabilize actin fibers.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  9. Cellular mechanisms of traumatic brain injury.npj biological physics and mechanics · 2025
    Review
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  12. Stabilization of F-actin bybioRxiv : the preprint server for biology · 2023
    Article
  13. Article
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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

5 authors at 4 institutions in 2 countries.

Pattipong WisanpitayakornMetabolomics and Systems Biology, Department of Biochemistry, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand; Siriraj Metabolomics and Phenomics Center, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Keith J MickolajczykDepartment of Biomedical Engineering, Pennsylvania State University, University Park, Pennsylvania; Laboratory of Chemistry and Cell Biology, The Rockefeller University, New York.
William O HancockDepartment of Biomedical Engineering, Pennsylvania State University, University Park, Pennsylvania.
Luis VidaliDepartment of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, Massachusetts.
Erkan TüzelBioengineering Department, Temple University, Philadelphia, Pennsylvania. Electronic address: erkan.tuzel@temple.edu.
Pennsylvania State University · USSiriraj Hospital · THTemple University · USWorcester Polytechnic Institute · US

Funding

Kinesin and +TIP-based microtubule steeringR01GM100076 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI HANCOCK, WILLIAM OLAF · 2012 to 2015
$1.7M
Multimotor Mechanisms in Microtubule-based TransportR01GM121679 · NIGMS · PENNSYLVANIA STATE UNIVERSITY, THE · PI HANCOCK, WILLIAM OLAF · 2017 to 2020
$1.3M
A biophysical approach to elucidating the molecular mechanisms of mitotic inhibitor targetsK00CA223018 · NCI · ROCKEFELLER UNIVERSITY · PI MICKOLAJCZYK, KEITH JOSEPH · 2018 to 2021
$379k
NCI NIH HHS K00 CA223018NIGMS NIH HHS R01 GM100076NIGMS NIH HHS R01 GM121679
6 · The paper itself

Abstract

Cytoskeletal filaments, such as microtubules and actin filaments, play important roles in the mechanical integrity of cells and the ability of cells to respond to their environment. Measuring the mechanical properties of cytoskeletal structures is crucial for gaining insight into intracellular mechanical stresses and their role in regulating cellular processes. One of the ways to characterize these mechanical properties is by measuring their persistence length, the average length over which filaments stay straight. There are several approaches in the literature for measuring filament deformations, such as Fourier analysis of images obtained using fluorescence microscopy. Here, we show how curvature distributions can be used as an alternative tool to quantify biofilament deformations, and investigate how the apparent stiffness of filaments depends on the resolution and noise of the imaging system. We present analytical calculations of the scaling curvature distributions as a function of filament discretization, and test our predictions by comparing Monte Carlo simulations with results from existing techniques. We also apply our approach to microtubules and actin filaments obtained from in vitro gliding assay experiments with high densities of nonfunctional motors, and calculate the persistence length of these filaments. The presented curvature analysis is significantly more accurate compared with existing approaches for small data sets, and can be readily applied to both in vitro and in vivo filament data through the use of the open-source codes we provide.

Indexed as

Actin CytoskeletonCytoskeletonMicroscopy, FluorescenceMicrotubulesStress, Mechanical

Identifiers

PMID35450824
PMCPMC9199094
OpenAlexW4226105045

What OpenQuestion holds

Textmetadata
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.