Xu Minrui, Zhang Siwen, Lu Manman, Gao Yuan, Zhang Menghuan, Lin Yong, Xie Lu
School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China.
Shanghai-MOST Key Laboratory of Health and Disease Genomics, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai 200237, P. R. China.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2024 Dec 25;41(6):1243-1249. doi: 10.7507/1001-5515.202405024.
The specific binding of T cell receptors (TCRs) to antigenic peptides plays a key role in the regulation and mediation of the immune process and provides an essential basis for the development of tumour vaccines. In recent years, studies have mainly focused on TCR prediction of major histocompatibility complex (MHC) class I antigens, but TCR prediction of MHC class II antigens has not been sufficiently investigated and there is still much room for improvement. In this study, the combination of MHC class II antigen peptide and TCR prediction was investigated using the ProtT5 grand model to explore its feature extraction capability. In addition, the model was fine-tuned to retain the underlying features of the model, and a feed-forward neural network structure was constructed for fusion to achieve the prediction model. The experimental results showed that the method proposed in this study performed better than the traditional methods, with a prediction accuracy of 0.96 and an AUC of 0.93, which verifies the effectiveness of the model proposed in this paper.
T细胞受体(TCR)与抗原肽的特异性结合在免疫过程的调节和介导中起关键作用,并为肿瘤疫苗的开发提供了重要基础。近年来,研究主要集中在主要组织相容性复合体(MHC)I类抗原的TCR预测上,而MHC II类抗原的TCR预测尚未得到充分研究,仍有很大的改进空间。在本研究中,使用ProtT5大型模型研究了MHC II类抗原肽与TCR预测的结合,以探索其特征提取能力。此外,对模型进行了微调以保留模型的潜在特征,并构建了前馈神经网络结构进行融合以实现预测模型。实验结果表明,本研究提出的方法比传统方法表现更好,预测准确率为0.96,AUC为0.93,验证了本文提出模型的有效性。