Evidence map›Paper›PMID 26202481›Full record

ArticleBMC immunology2015

Negative feedback circuit for toll like receptor-8 activation in human embryonic Kidney 293 using outer membrane vesicle delivered bi-specific siRNA.

Anurag Adhikari, Birendra Prasad Gupta, Krishna Das Manandhar, Shravan Kumar Mishra, Hari Krishna Saiju, Rajendra Maan Shrestha, Nawneet Mishra, Shishir Sharma

Open access · goldAbstract read
In one paragraph

Article in BMC immunology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact, top 95% 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

0 citing papers in PubMed, 0 citations in OpenAlex.

No citing paper in PubMed yet.

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

8 authors at 4 institutions in 3 countries.

Anurag AdhikariAsian Institute of Technology & Management, Purbanchal University, Knowledge village, Khumaltar, Satdobato, Lalitpur, Nepal. adhikari_anurag13@yahoo.com.
Birendra Prasad GuptaCentral Department of Biotechnology, Tribhuvan University, Kathmandu, Nepal. guptabirendra10@gmail.com.
Krishna Das ManandharCentral Department of Biotechnology, Tribhuvan University, Kathmandu, Nepal. krishnamanandhar@gmail.com.
Shravan Kumar MishraNational Public Health Laboratory, Teku, Kathmandu, Nepal. mishrashravan75@gmail.com.
Hari Krishna SaijuAsian Institute of Technology & Management, Purbanchal University, Knowledge village, Khumaltar, Satdobato, Lalitpur, Nepal. harisainju959@gmail.com.
Rajendra Maan ShresthaPadma Kanya Multiple Campus, Tribhuvan University, Kathmandu, Nepal. shresthar641@gmail.com.
Nawneet MishraSouth Asian University, New Delhi, India. nawneetmishra6@gmail.com.
Shishir SharmaAsian Institute of Technology & Management, Purbanchal University, Knowledge village, Khumaltar, Satdobato, Lalitpur, Nepal. shishirsharma618@gmail.com.
Asian Institute of Technology · THTribhuvan University · NPNational Public Health Laboratory · NPSouth Asian University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTLR8 assists in antiviral approach by producing Type 1 INF via MyD88 dependent IRF7 pathway. However, over expression of INFα/β molecule poses threat by developing tolerance in chronic infection cases and enhancing inflammatory response. Here we report a bi-specific siRNA based complex which differentially activates and silences the TLR8 and MYD88 respectively in a negatively regulated fashion.

resultsOuter membrane vesicle from Escherichia coli used for siRNA delivery was observed more efficient when attached with invasive protein Ail along with OmpA (P<0.001) in HEK293-TLR8 cell line. siRNA complexed with p19 protein was efficient in activating TLR8, confirmed by the increment of INFβ molecules (P<0.001) in HEK293-TLR8 compared to its counterpart. Fusion of lipid bilayer of endosomal compartment was significant at pH 4.5 when fusogenic peptides (diINF-7) were incubated in membrane vesicle, thus facilitating the escape of siRNA complex to the host cytoplasm in order to silence MyD88 transcript (P<0.001).

conclusionsWe investigated the activation of TLR8 by bi-specific si-RNA for the production of INFβ. In the same setting we showed that bi-specific si-RNA was able to silence MyD88 transcript in a delayed manner. For the cases of auto immune disease and inflammation where over activation of endosomal TLRs poses serious threat, bi specific siRNA could be used as negative feedback controlled system.

Indexed as

Feedback, PhysiologicalBacterial Outer Membrane ProteinsCell DeathEndocytosisEndosomesEscherichia coliGene SilencingHEK293 CellsHumansHydrogen-Ion ConcentrationInterferon-betaLigandsMembrane FusionMyeloid Differentiation Factor 88PeriplasmProtein TransportAil protein, Yersinia pestisBacterial Outer Membrane ProteinsInterferon-betaLigandsMyeloid Differentiation Factor 88RNA, Small InterferingTLR8 protein, humanToll-Like Receptor 8Unilamellar LiposomesViral ProteinsVirulence Factors

Identifiers

PMID26202481
PMCPMC4510891
OpenAlexW2099596128

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.