Evidence map›Paper›PMID 26405806›Full record

ArticlePloS one2015

TAT Modification of Alpha-Helical Anticancer Peptides to Improve Specificity and Efficacy.

Xueyu Hao, Qiuyan Yan, Jing Zhao, Wenren Wang, Yibing Huang, Yuxin Chen

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

29 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
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  5. Biological Activity of Natural and Synthetic Peptides as Anticancer Agents.International journal of molecular sciences · 2024
    Review
  6. Review
  7. Review
  8. Designed Multifunctional Peptides for Intracellular Targets.Antibiotics (Basel, Switzerland) · 2022
    Review
  9. Review
  10. Article
  11. Article
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  13. Article
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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

6 authors at 1 institution in 1 country.

Xueyu HaoKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, China; School of Life Sciences, Jilin University, Changchun, China.
Qiuyan YanKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, China; School of Life Sciences, Jilin University, Changchun, China.
Jing ZhaoKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, China; School of Life Sciences, Jilin University, Changchun, China.
Wenren WangChangchun ProteLight Pharmaceutical & Biotechnology Co., Ltd., Changchun, China.
Yibing HuangKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, China; School of Life Sciences, Jilin University, Changchun, China; National Engineering Laboratory for AIDS Vaccine, Jilin University, Changchun, China.
Yuxin ChenKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, China; School of Life Sciences, Jilin University, Changchun, China; National Engineering Laboratory for AIDS Vaccine, Jilin University, Changchun, China.
Jilin University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

HPRP-A1 is an amphipathic α-helical anticancer peptide (ACP) derived from the N-terminus of ribosomal protein L1 (RpL1) of Helicobacter pylori. In our previously study, HPRP-A1 has been reported that induced HeLa cell apoptosis in a caspase-dependent approach and involved both by the death receptor 'extrinsic' pathway and the mitochondria 'intrinsic' pathway. Here we report the construction of a new hybrid peptide, HPRP-A1-TAT, comprising the cell-permeating peptide TAT linked to the C-terminus of HPRP-A1. This peptide exhibits higher anticancer activity against HeLa cells with lower toxicity against human RBC than HPRP-A1. Two FITC-labeled peptides, FITC-HPRP-A1 and FITC-HPRP-A1-TAT, were used to investigate and compare the cellular uptake mechanism using fluorescence spectra and flow cytometry. Compared with HPRP-A1, HPRP-A1-TAT quickly crossed cell, entered the cytoplasm via endocytosis, and disrupted the cell membrane integrity. HPRP-A1-TAT exhibited stronger anticancer activity than HPRP-A1 at the same concentration by increasing early apoptosis of HeLa cells and inducing caspase activity. Notably, after 24 h, the cellular concentration of HPRP-A1-TAT was higher than that of HPRP-A1. This result suggests that TAT protects HPRP-A1 against degradation, likely due to its high number of positively charged amino acids or the further release of peptides into cancer cells from endocytotic vesicles. We believe that this TAT modification approach may provide an effective new strategy for improving the therapeutic index and anticancer activity of ACPs for clinical use.

Indexed as

Antineoplastic AgentsApoptosisCaspasesCell Line, TumorCell ProliferationGene Expression Regulation, NeoplasticHeLa CellsHep G2 CellsHumansOrgan SpecificityPeptide Fragmentstat Gene Products, Human Immunodeficiency VirusAntineoplastic AgentsCaspasesPeptide Fragmentstat Gene Products, Human Immunodeficiency Virustat peptide (49-57), Human immunodeficiency virus 1

Identifiers

PMID26405806
PMCPMC4583266
OpenAlexW2212467263

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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.