Evidence map›Paper›PMID 31189468›Full record

ArticleActa neuropathologica communications2019

Intrathecal delivery of recombinant AAV1 encoding hepatocyte growth factor improves motor functions and protects neuromuscular system in the nerve crush and SOD1-G93A transgenic mouse models.

Sang Hwan Lee, Subin Kim, Nayeon Lee, Junghun Lee, Seung Shin Yu, Jin Hong Kim, Sunyoung Kim

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Acta neuropathologica communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Approaches to Gene Modulation Therapy for ALS.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
  9. Article
  10. Gene therapy for ALS: A review.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
    Review
  11. HGF and MET: From Brain Development to Neurological Disorders.Frontiers in cell and developmental biology · 2021
    Review
  12. Article
  13. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Sang Hwan LeeSchool of Biological Sciences, Seoul National University, Gwanak-Gu, Seoul, 08826, Korea.
Subin KimR&D Center for Innovative Medicines, Helixmith Co., Ltd., Building 203, Gwanak-Gu, Seoul, 08826, Korea.
Nayeon LeeR&D Center for Innovative Medicines, Helixmith Co., Ltd., Building 203, Gwanak-Gu, Seoul, 08826, Korea.
Junghun LeeR&D Center for Innovative Medicines, Helixmith Co., Ltd., Building 203, Gwanak-Gu, Seoul, 08826, Korea.
Seung Shin YuR&D Center for Innovative Medicines, Helixmith Co., Ltd., Building 203, Gwanak-Gu, Seoul, 08826, Korea.
Jin Hong KimSchool of Biological Sciences, Seoul National University, Gwanak-Gu, Seoul, 08826, Korea.
Sunyoung KimR&D Center for Innovative Medicines, Helixmith Co., Ltd., Building 203, Gwanak-Gu, Seoul, 08826, Korea. sk@helixmith.com.ORCID 0000-0002-1736-9088
Helixmith (South Korea) · KRSeoul National University · KR

Funding

Korea Health Industry Development Institute HI16C1222
6 · The paper itself

Abstract

Amyotrophic lateral sclerosis (ALS) is a fatal neuromuscular disease resulting from motor neuron degeneration that causes muscle weakness, paralysis, and eventually respiratory failure. We investigated whether recombinant adeno-associated virus encoding human hepatocyte growth factor (rAAV-HGF) could generate beneficial effects in two mouse models with neuromuscular problems when intrathecally delivered to the subarachnoid space. We chose AAV serotype 1 (rAAV1) based on the expression levels and distribution of HGF protein in the lumbar spinal cord (LSC). After a single intrathecal (IT) injection of rAAV1-HGF, the protein level of HGF in the LSC peaked on day 14 and thereafter gradually decreased over the next 14 weeks. rAAV1-HGF was initially tested in the mouse nerve crush model. IT injection of rAAV1-HGF improved mouse hindlimb strength and rotarod performance, while histological analyses showed that the length of regenerated axons was increased and the structure of the neuromuscular junction (NMJ) was restored. rAAV1-HGF was also evaluated in the SOD1-G93A transgenic (TG) mouse model. Again, rAAV1-HGF not only improved motor performance but also increased the survival rate. Moreover, the number and diameter of spinal motor neurons (SMNs) were increased, and the shape of the NMJs restored. Data from in vitro motor cortical culture experiments indicated that treatment with recombinant HGF protein (rHGF) increased the axon length of corticospinal motor neurons (CSMNs). When cultures were treated with an ERK inhibitor, the effects of HGF on axon elongation, protein aggregation, and oxidative stress were suppressed, indicating that ERK phosphorylation played an important role(s). Taken together, our results suggested that HGF might play an important role(s) in delaying disease progression in the SOD1-G93A TG mouse model by reducing oxidative stress through the control of ERK phosphorylation.

Indexed as

AnimalsCells, CulturedDependovirusHEK293 CellsHepatocyte Growth FactorHumansInjections, SpinalMiceMice, Inbred C57BLMice, TransgenicMotor SkillsNerve CrushNeuromuscular JunctionRecombinant ProteinsSciatic NeuropathySuperoxide DismutaseHepatocyte Growth FactorHGF protein, mouseRecombinant ProteinsSOD1 G93A proteinSuperoxide DismutaseAdeno-associated virus (AAV)Amyotrophic lateral sclerosis (ALS)Corticospinal motor neuron (CSMN)Hepatocyte growth factor (HGF)Oxidative stress

Identifiers

PMID31189468
PMCPMC6563368
OpenAlexW2952439857

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.