Evidence map›Paper›PMID 35918631›Full record

ArticleBMC bioinformatics2022

In silico design of a multi-epitope vaccine against HPV16/18.

Samira Sanami, Mahmoud Rafieian-Kopaei, Korosh Ashrafi Dehkordi, Hamidreza Pazoki-Toroudi, Fatemeh Azadegan-Dehkordi, Gholam-Reza Mobini, Morteza Alizadeh, Muhammad Sadeqi Nezhad, Maryam Ghasemi-Dehnoo, Nader Bagheri

Open access · goldAbstract read
In one paragraph

Article in BMC bioinformatics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.6field-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

25 citing papers in PubMed, 42 citations in OpenAlex.

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  18. In silico analysis of virulence factors ofIn silico pharmacology · 2024
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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

10 authors at 4 institutions in 1 country.

Samira SanamiDepartment of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Mahmoud Rafieian-KopaeiMedical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Korosh Ashrafi DehkordiCellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Hamidreza Pazoki-ToroudiPhysiology Research Center, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Fatemeh Azadegan-DehkordiCellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Gholam-Reza MobiniCellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Morteza AlizadehDepartment of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
Muhammad Sadeqi NezhadDepartment of Clinical Laboratory Science, Young Researchers and Elites Club, Gorgan Branch, Islamic Azad University, Gorgān, Iran.
Maryam Ghasemi-DehnooMedical Plants Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Nader BagheriCellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran. n.bagheri1985@gmail.com.
Shahrekord University of Medical Sciences · IRIran University of Medical Sciences · IRIslamic Azad University of Gorgan · IRShahroud University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCervical cancer is the fourth most common cancer affecting women and is caused by human Papillomavirus (HPV) infections that are sexually transmitted. There are currently commercially available prophylactic vaccines that have been shown to protect vaccinated individuals against HPV infections, however, these vaccines have no therapeutic effects for those who are previously infected with the virus. The current study's aim was to use immunoinformatics to develop a multi-epitope vaccine with therapeutic potential against cervical cancer.

resultsIn this study, T-cell epitopes from E5 and E7 proteins of HPV16/18 were predicted. These epitopes were evaluated and chosen based on their antigenicity, allergenicity, toxicity, and induction of IFN-γ production (only in helper T lymphocytes). Then, the selected epitopes were sequentially linked by appropriate linkers. In addition, a C-terminal fragment of Mycobacterium tuberculosis heat shock protein 70 (HSP70) was used as an adjuvant for the vaccine construct. The physicochemical parameters of the vaccine construct were acceptable. Furthermore, the vaccine was soluble, highly antigenic, and non-allergenic. The vaccine's 3D model was predicted, and the structural improvement after refinement was confirmed using the Ramachandran plot and ProSA-web. The vaccine's B-cell epitopes were predicted. Molecular docking analysis showed that the vaccine's refined 3D model had a strong interaction with the Toll-like receptor 4. The structural stability of the vaccine construct was confirmed by molecular dynamics simulation. Codon adaptation was performed in order to achieve efficient vaccine expression in Escherichia coli strain K12 (E. coli). Subsequently, in silico cloning of the multi-epitope vaccine was conducted into pET-28a ( +) expression vector.

conclusionsAccording to the results of bioinformatics analyses, the multi-epitope vaccine is structurally stable, as well as a non-allergic and non-toxic antigen. However, in vitro and in vivo studies are needed to validate the vaccine's efficacy and safety. If satisfactory results are obtained from in vitro and in vivo studies, the vaccine designed in this study may be effective as a therapeutic vaccine against cervical cancer.

Indexed as

Human papillomavirus 16Uterine Cervical NeoplasmsComputational BiologyEpitopes, B-LymphocyteEpitopes, T-LymphocyteEscherichia coliFemaleHuman papillomavirus 18HumansMolecular Docking SimulationVaccines, SubunitEpitopes, B-LymphocyteEpitopes, T-LymphocyteVaccines, SubunitE5 proteinE7 proteinEpitopeHPVVaccine

Identifiers

PMID35918631
PMCPMC9344258
OpenAlexW4289520891

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.