Evidence map›Paper›PMID 3958057›Full record

ArticleThe Journal of cell biology1986

Role of stress fiber-like structures in assembling nascent myofibrils in myosheets recovering from exposure to ethyl methanesulfonate.

P B Antin, S Tokunaka, V T Nachmias, H Holtzer

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1986. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

33 citing papers in PubMed, 81 citations in OpenAlex.

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  9. Heparin and the phenotype of adult human vascular smooth muscle cells.In vitro cellular & developmental biology. Animal · 1995
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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

4 authors at 1 institution in 1 country.

P B Antin
S Tokunaka
V T Nachmias
H Holtzer
California University of Pennsylvania · US

Funding

TIME RESOLVED X RAY INTERFEROMETRY AND SARCOPLASMIC RETICULUM CALCIUM ATPASEP01HL018708 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI DUBYAK, GEORGE R · 1985 to 2006
$6.6M
CONVERSION OF EMBRYONIC CELLS INTO TRANSFORMED CELLSR01CA018194 · NCI · UNIVERSITY OF PENNSYLVANIA · PI HOLTZER, HOWARD · 1985 to 1990
–
NCI NIH HHS CA-18194NHLBI NIH HHS HL-18708NICHD NIH HHS HD-07512
6 · The paper itself

Abstract

When day 1 cultures of chick myogenic cells were exposed to the mutagenic alkylating agent ethyl methanesulfonate (EMS) for 3 d, 80% of the replicating cells were killed, but postmitotic myoblasts survived. The myoblasts fused to form unusual multinucleated "myosheets": extraordinarily wide, flattened structures that were devoid of myofibrils but displayed extensive, submembranous stress fiber-like structures (SFLS). Immunoblots of the myosheets indicated that the carcinogen blocked the synthesis and accumulation of the myofibrillar myosin isoforms but not that of the cytoplasmic myosin isoform. When removed from EMS, widely spaced nascent myofibrils gradually emerged in the myosheets after 3 d. Striking co-localization of fluorescent reagents that stained SFLS and those that specifically stained myofibrils was observed for the next 2 d. By both immunofluorescence and electron microscopy, individual nascent myofibrils appeared to be part of, or juxtaposed to, preexisting individual SFLS. By day 6, all SFLS had disappeared, and the definitive myofibrils were displaced from their submembranous site into the interior of the myosheet. Immunoblots from recovering myosheets demonstrated a temporal correlation between the appearance of the myofibrillar myosin isoforms and the assembly of thick filaments. The assembly of definitive myofibrils did not appear to involve desmin intermediate filaments, but a striking aggregation of sarcoplasmic reticulum elements was seen at the level of each I-Z-band. Our findings suggest that SFLS in the EMS myosheets function as early, transitory assembly sites for nascent myofibrils.

Indexed as

AnimalsCells, CulturedChick EmbryoEthyl MethanesulfonateMicroscopy, ElectronMicroscopy, FluorescenceMusclesMyofibrilsMyosinsEthyl MethanesulfonateMyosins

Identifiers

PMID3958057
PMCPMC2114158
OpenAlexW2014016916

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.