AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides

Human respiratory syncytial virus (RSV) remains a significant global health threat, particularly for vulnerable populations. Despite extensive research, effective antiviral therapies are still limited. To address this urgent need, we present AVP-GPT2, a deep-learning model that significantly outperf...

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Main Authors: Huajian Zhao, Gengshen Song
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Viruses
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Online Access:https://www.mdpi.com/1999-4915/17/1/14
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author Huajian Zhao
Gengshen Song
author_facet Huajian Zhao
Gengshen Song
author_sort Huajian Zhao
collection DOAJ
description Human respiratory syncytial virus (RSV) remains a significant global health threat, particularly for vulnerable populations. Despite extensive research, effective antiviral therapies are still limited. To address this urgent need, we present AVP-GPT2, a deep-learning model that significantly outperforms its predecessor, AVP-GPT, in designing and screening antiviral peptides. Trained on a significantly expanded dataset, AVP-GPT2 employs a transformer-based architecture to generate diverse peptide sequences. A multi-modal screening approach, incorporating Star-Transformer and Vision Transformer, enables accurate prediction of antiviral activity and toxicity, leading to the identification of potent and safe candidates. SHAP analysis further enhances interpretability by explaining the underlying mechanisms of peptide activity. Our in vitro experiments confirmed the antiviral efficacy of peptides generated by AVP-GPT2, with some exhibiting EC50 values as low as 0.01 μM and CC50 values > 30 μM. This represents a substantial improvement over AVP-GPT and traditional methods. AVP-GPT2 has the potential to significantly impact antiviral drug discovery by accelerating the identification of novel therapeutic agents. Future research will explore its application to other viral targets and its integration into existing drug development pipelines.
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spelling doaj-art-cc96d09535214baeb482fa7b88e748a82025-01-24T13:52:15ZengMDPI AGViruses1999-49152024-12-011711410.3390/v17010014AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral PeptidesHuajian Zhao0Gengshen Song1Beijing Youcare Kechuang Pharmaceutical Technology Co., Ltd., Beijing 100176, ChinaBeijing Youcare Kechuang Pharmaceutical Technology Co., Ltd., Beijing 100176, ChinaHuman respiratory syncytial virus (RSV) remains a significant global health threat, particularly for vulnerable populations. Despite extensive research, effective antiviral therapies are still limited. To address this urgent need, we present AVP-GPT2, a deep-learning model that significantly outperforms its predecessor, AVP-GPT, in designing and screening antiviral peptides. Trained on a significantly expanded dataset, AVP-GPT2 employs a transformer-based architecture to generate diverse peptide sequences. A multi-modal screening approach, incorporating Star-Transformer and Vision Transformer, enables accurate prediction of antiviral activity and toxicity, leading to the identification of potent and safe candidates. SHAP analysis further enhances interpretability by explaining the underlying mechanisms of peptide activity. Our in vitro experiments confirmed the antiviral efficacy of peptides generated by AVP-GPT2, with some exhibiting EC50 values as low as 0.01 μM and CC50 values > 30 μM. This represents a substantial improvement over AVP-GPT and traditional methods. AVP-GPT2 has the potential to significantly impact antiviral drug discovery by accelerating the identification of novel therapeutic agents. Future research will explore its application to other viral targets and its integration into existing drug development pipelines.https://www.mdpi.com/1999-4915/17/1/14antiviral peptidestar-transformervision-transformergeneration modelantiviral activity screening modeltoxicity screening model
spellingShingle Huajian Zhao
Gengshen Song
AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides
Viruses
antiviral peptide
star-transformer
vision-transformer
generation model
antiviral activity screening model
toxicity screening model
title AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides
title_full AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides
title_fullStr AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides
title_full_unstemmed AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides
title_short AVP-GPT2: A Transformer-Powered Platform for De Novo Generation, Screening, and Explanation of Antiviral Peptides
title_sort avp gpt2 a transformer powered platform for de novo generation screening and explanation of antiviral peptides
topic antiviral peptide
star-transformer
vision-transformer
generation model
antiviral activity screening model
toxicity screening model
url https://www.mdpi.com/1999-4915/17/1/14
work_keys_str_mv AT huajianzhao avpgpt2atransformerpoweredplatformfordenovogenerationscreeningandexplanationofantiviralpeptides
AT gengshensong avpgpt2atransformerpoweredplatformfordenovogenerationscreeningandexplanationofantiviralpeptides