Evidence map›Paper›PMID 31801253›Full record

ArticleCells2019

mTORC1 Mediates Lysine-Induced Satellite Cell Activation to Promote Skeletal Muscle Growth.

Cheng-Long Jin, Jin-Ling Ye, Jinzeng Yang, Chun-Qi Gao, Hui-Chao Yan, Hai-Chang Li, Xiu-Qi Wang

Open access · goldAbstract read
In one paragraph

Article in Cells, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

37 citing papers in PubMed, 63 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

Cheng-Long JinCollege of Animal Science, South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry, Guangzhou 510642, China.ORCID 0000-0003-4475-4595
Jin-Ling YeInstitute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou 510642, China.ORCID 0000-0003-2927-6986
Jinzeng YangDepartment of Human Nutrition, Food and Animal Sciences, University of Hawaii, Honolulu, HI 96822, USA.ORCID 0000-0002-2483-4734
Chun-Qi GaoCollege of Animal Science, South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry, Guangzhou 510642, China.ORCID 0000-0001-9119-1233
Hui-Chao YanCollege of Animal Science, South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry, Guangzhou 510642, China.
Hai-Chang LiDepartment of Surgery, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, OH 43210, USA.ORCID 0000-0001-9784-6480
Xiu-Qi WangCollege of Animal Science, South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry, Guangzhou 510642, China.ORCID 0000-0003-2033-9485
South China Agricultural University · CNGuangdong Academy of Agricultural Sciences · CNLung Institute · USUniversity of Hawaii System · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As the first limiting amino acid, lysine (Lys) has been thought to promote muscle fiber hypertrophy by increasing protein synthesis. However, the functions of Lys seem far more complex than that. Despite the fact that satellite cells (SCs) play an important role in skeletal muscle growth, the communication between Lys and SCs remains unclear. In this study, we investigated whether SCs participate directly in Lys-induced skeletal muscle growth and whether the mammalian target of rapamycin complex 1 (mTORC1) pathway was activated both in vivo and in vitro to mediate SC functions in response to Lys supplementation. Subsequently, the skeletal muscle growth of piglets was controlled by dietary Lys supplementation. Isobaric tag for relative and absolute quantitation (iTRAQ) analysis showed activated SCs were required for longissimus dorsi muscle growth, and this effect was accompanied by mTORC1 pathway upregulation. Furthermore, SC proliferation was governed by medium Lys concentrations, and the mTORC1 pathway was significantly enhanced in vitro. After verifying that rapamycin inhibits the mTORC1 pathway and suppresses SC proliferation, we conclude that Lys is not only a molecular building block for protein synthesis but also a signal that activates SCs to manipulate muscle growth via the mTORC1 pathway.

Indexed as

AnimalsBiomarkersCell ProliferationDietary SupplementsHumansImmunohistochemistryLysineMechanistic Target of Rapamycin Complex 1Muscle, SkeletalSatellite Cells, Skeletal MuscleSignal TransductionSwineBiomarkersLysineMechanistic Target of Rapamycin Complex 1lysinemTORC1proliferationsatellite cellsskeletal muscle growth

Identifiers

PMID31801253
PMCPMC6953079
OpenAlexW2990653252

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.