Evidence map›Paper›PMID 27900727›Full record

ArticleAMB Express2016

Antimicrobial activity and stability of the D-amino acid substituted derivatives of antimicrobial peptide polybia-MPI.

Yanyan Zhao, Min Zhang, Shuai Qiu, Jiayi Wang, Jinxiu Peng, Ping Zhao, Ranran Zhu, Hailin Wang, Yuan Li, Kairong Wang and 2 more

Open access · goldAbstract read
In one paragraph

Article in AMB Express, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

64 citing papers in PubMed, 120 citations in OpenAlex.

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  20. Current pharmaceutical biotechnology · 2025
    Article

4 more citing papers are in PubMed but not listed here.

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

12 authors at 2 institutions in 1 country.

Yanyan ZhaoKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
Min ZhangThe People's Hospital in Gansu Province, 204 West Donggang Road, Lanzhou, 730000, People's Republic of China.
Shuai QiuKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
Jiayi WangKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
Jinxiu PengKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
Ping ZhaoKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
Ranran ZhuKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China.
Hailin WangThe People's Hospital in Gansu Province, 204 West Donggang Road, Lanzhou, 730000, People's Republic of China.
Yuan LiThe People's Hospital in Gansu Province, 204 West Donggang Road, Lanzhou, 730000, People's Republic of China.
Kairong WangKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China. wangkr@lzu.edu.cn.
Wenjin YanKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China. yanwj@lzu.edu.cn.
Rui WangKey Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, People's Republic of China. wangrui@lzu.edu.cn.
Lanzhou University · CNGansu Provincial Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Antimicrobial peptide has the potential to be developed as new kind of antimicrobial agents with novel action mechanism. However, the susceptibility to protease is a drawback for potential peptides to be clinical used. D-amino acid substitution can be one way to increase the proteolytic stability of peptides. In the present study, we synthesized the D-lysines substituted analog (D-lys-MPI) and the D-enantiomer of polybia-MPI (D-MPI) to improve the proteolytic resistance of polybia-MPI. Our results showed that, the stability of its D-amino acid partially substituted analog D-lys-MPI was increased. However, it lost antimicrobial activity at the tested concentration with the loss of α-helix content. As shown in the CD spectra, after substitution, the spectra of D-MPI is symmetrical to MPI, indicated it turned into left hand α-helical conformation. Excitingly, the stability of D-MPI toward the tested protease was improved greatly. Notably, the antimicrobial activity of D-MPI was comparable to its L-counterpart MPI, even improved. In addition, the hemolytic activity of D-MPI was lowered. This also indicated that the action target of antimicrobial peptide polybia-MPI was not chiral specific. So, D-MPI may offer a therapeutic strategy to defend the infection of microbes, considering its stability to protease and relatively lower cytotoxicity to human erythrocytes.

Indexed as

Antimicrobial peptideD-Amino acid substitutionPolybia-MPIStability

Identifiers

PMID27900727
PMCPMC5128008
OpenAlexW2559271087

What OpenQuestion holds

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LicenceCC BY
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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.