Immunoinformatics (Amsterdam, Netherlands)最新文献

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Scifer: An R/Bioconductor package for large-scale integration of Sanger sequencing and flow cytometry data of index-sorted single cells Scifer:用于大规模整合桑格测序和流式细胞仪指数分选单细胞数据的 R/Bioconductor 软件包
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-12-01 Epub Date: 2024-10-29 DOI: 10.1016/j.immuno.2024.100046
Rodrigo Arcoverde Cerveira , Klara Lenart , Marcel Martin , Matthew James Hinchcliff , Fredrika Hellgren , Kewei Ye , Juliana Assis Geraldo , Taras Kreslavsky , Sebastian Ols , Karin Loré
{"title":"Scifer: An R/Bioconductor package for large-scale integration of Sanger sequencing and flow cytometry data of index-sorted single cells","authors":"Rodrigo Arcoverde Cerveira ,&nbsp;Klara Lenart ,&nbsp;Marcel Martin ,&nbsp;Matthew James Hinchcliff ,&nbsp;Fredrika Hellgren ,&nbsp;Kewei Ye ,&nbsp;Juliana Assis Geraldo ,&nbsp;Taras Kreslavsky ,&nbsp;Sebastian Ols ,&nbsp;Karin Loré","doi":"10.1016/j.immuno.2024.100046","DOIUrl":"10.1016/j.immuno.2024.100046","url":null,"abstract":"<div><div>Sanger sequencing remains widely used in various experimental contexts, often in combination with flow cytometry for indexing specific cell populations. However, existing software lacks the capability to automate quality control (QC) of raw Sanger sequencing data and integrate it with flow cytometry information on a large scale. Here, we introduce scifer, an R package now available in the latest release of Bioconductor (3.20) showcasing its effectiveness in seamlessly integrating these types of data as demonstrated by analyses of B cell and T cell receptor sequences. Scifer preprocesses raw data from index sorts and immune receptor Sanger sequencing. It identifies high-quality sequences based on selected parameters, such as length, Phred scores, and heavy-chain complementarity-determining region 3 (HCDR3) quality. As a result, the quality of germline assignments is significantly increased and spurious variable gene mutations are reduced. Scifer is automated and can process thousands of sequences in less than an hour. Its output provides quality control reports, FASTA files, summarized tables, and electropherograms for manual inspection. In summary, scifer is a user-friendly software that speeds up the analysis of immune receptor repertoire sequences, offering wide applicability.</div></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"16 ","pages":"Article 100046"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142663038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lessons learned from the IMMREP23 TCR-epitope prediction challenge 从 IMMREP23 TCR 表位预测挑战中汲取的经验教训
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-12-01 Epub Date: 2024-09-28 DOI: 10.1016/j.immuno.2024.100045
Morten Nielsen , Anne Eugster , Mathias Fynbo Jensen , Manisha Goel , Andreas Tiffeau-Mayer , Aurelien Pelissier , Sebastiaan Valkiers , María Rodríguez Martínez , Barthélémy Meynard-Piganeeau , Victor Greiff , Thierry Mora , Aleksandra M. Walczak , Giancarlo Croce , Dana L Moreno , David Gfeller , Pieter Meysman , Justin Barton
{"title":"Lessons learned from the IMMREP23 TCR-epitope prediction challenge","authors":"Morten Nielsen ,&nbsp;Anne Eugster ,&nbsp;Mathias Fynbo Jensen ,&nbsp;Manisha Goel ,&nbsp;Andreas Tiffeau-Mayer ,&nbsp;Aurelien Pelissier ,&nbsp;Sebastiaan Valkiers ,&nbsp;María Rodríguez Martínez ,&nbsp;Barthélémy Meynard-Piganeeau ,&nbsp;Victor Greiff ,&nbsp;Thierry Mora ,&nbsp;Aleksandra M. Walczak ,&nbsp;Giancarlo Croce ,&nbsp;Dana L Moreno ,&nbsp;David Gfeller ,&nbsp;Pieter Meysman ,&nbsp;Justin Barton","doi":"10.1016/j.immuno.2024.100045","DOIUrl":"10.1016/j.immuno.2024.100045","url":null,"abstract":"<div><div>Here, we present the findings from IMMREP23, the second benchmark competition focused on predicting the specificity of TCR-pMHC interactions.</div><div>The interaction of T cell receptors (TCR) towards their pMHC target is a cornerstone of the cellular immune system. Over the last decade, substantial progress has been made within the field of TCR specificity prediction, providing proof of concept for predicting TCR-pMHC interactions in a narrow space of “seen” pMHC targets where substantial training data is available. However, a significant challenge persists in extending the predictive capability to novel “unseen” pMHC targets. Furthermore, the performance of proposed methods is often challenged when evaluated outside the initial publication and data sets.</div><div>To address these issues, IMMREP23 challenge invited participants to predict, for a given test set of TCR-pMHC pairs, the likelihood that a pair would bind. A total of 53 teams participated, providing a total of 398 submissions.</div><div>The benchmark confirms that current methods achieve reasonable performance in the \"seen\" pMHC setting. However, most participating methods had close to random performance on the subset of “unseen” peptides, underlining that this prediction challenge remains essentially unsolved.</div><div>Finally, another key lesson from the benchmark is the critical issue of data leakage. Specifically, the data set construction procedure employed in IMMREP23 led to biases in the negative test data set. These biases were identified by several participating teams, and complicated the interpretation of the benchmark results. Based on these results, we put forward suggestions on how future competitions could avoid such data leakages and biases.</div></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"16 ","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142426792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Data mining antibody sequences for database searching in bottom-up proteomics 自下而上蛋白质组学数据库搜索抗体序列的数据挖掘
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-09-01 Epub Date: 2024-08-22 DOI: 10.1016/j.immuno.2024.100042
Xuan-Tung Trinh , Rebecca Freitag , Konrad Krawczyk , Veit Schwämmle
{"title":"Data mining antibody sequences for database searching in bottom-up proteomics","authors":"Xuan-Tung Trinh ,&nbsp;Rebecca Freitag ,&nbsp;Konrad Krawczyk ,&nbsp;Veit Schwämmle","doi":"10.1016/j.immuno.2024.100042","DOIUrl":"10.1016/j.immuno.2024.100042","url":null,"abstract":"<div><p>Mass spectrometry-based proteomics facilitates the identification and quantification of thousands of proteins but encounters challenges in measuring human antibodies due to their vast diversity. Bottom-up proteomics methods primarily rely on database searches, comparing experimental peptide values to theoretical database sequences. While the human body can produce millions of distinct antibodies, current databases, such as UniProtKB/Swiss-Prot, contain only 1095 sequences (as of January 2024), potentially hindering antibody identification via mass spectrometry. Therefore, expanding the database is crucial for discovering new antibodies. Recent genomic studies have amassed millions of human antibody sequences in the Observed Antibody Space (OAS) database, yet this data remains underutilized. Leveraging this vast collection, we conduct efficient database searches in publicly available proteomics data, focusing on SARS-CoV-2. In our study, thirty million heavy antibody sequences from 146 SARS-CoV-2 patients in the OAS database were digested <em>in silico</em> to obtain 18 million unique peptides. These peptides form the basis for new bottom-up proteomics databases. We used those databases for searching new antibody peptides in publicly available SARS-CoV-2 human plasma samples in the Proteomics Identification Database (PRIDE). This approach avoids false positives in antibody peptide identification as confirmed by searching against negative controls (brain samples) and employing different database sizes. We show that new antibody peptides were found in previous plasma samples and expect that the newly discovered antibody peptides can be further employed to develop therapeutic antibodies. The method will be broadly applicable to find characteristic antibodies for other diseases.</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"15 ","pages":"Article 100042"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000120/pdfft?md5=6bc5ac01ada92397791db50d32ef768f&pid=1-s2.0-S2667119024000120-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142076922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In silico modelling of CD8 T cell immune response links genetic regulation to population dynamics CD8 T 细胞免疫反应的硅学建模将遗传调控与种群动态联系起来
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-09-01 Epub Date: 2024-09-07 DOI: 10.1016/j.immuno.2024.100043
Thi Nhu Thao Nguyen , Madge Martin , Christophe Arpin , Samuel Bernard , Olivier Gandrillon , Fabien Crauste
{"title":"In silico modelling of CD8 T cell immune response links genetic regulation to population dynamics","authors":"Thi Nhu Thao Nguyen ,&nbsp;Madge Martin ,&nbsp;Christophe Arpin ,&nbsp;Samuel Bernard ,&nbsp;Olivier Gandrillon ,&nbsp;Fabien Crauste","doi":"10.1016/j.immuno.2024.100043","DOIUrl":"10.1016/j.immuno.2024.100043","url":null,"abstract":"<div><p>The CD8 T cell immune response operates at multiple temporal and spatial scales, including all the early complex biochemical and biomechanical processes, up to long term cell population behavior.</p><p>In order to model this response, we devised a multiscale agent-based approach using <span>Simuscale</span> software. Within each agent (cell) of our model, we introduced a gene regulatory network (GRN) based upon a piecewise deterministic Markov process formalism. Cell fate – differentiation, proliferation, death – was coupled to the state of the GRN through rule-based mechanisms. Cells interact in a 3D computational domain and signal to each other via cell–cell contacts, influencing the GRN behavior.</p><p>Results show the ability of the model to correctly capture both population behavior and molecular time-dependent evolution. We examined the impact of several parameters on molecular and population dynamics, and demonstrated the add-on value of using a multiscale approach by showing the influence of molecular parameters, particularly protein degradation rates, on the outcome of the response, such as effector and memory cell counts.</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"15 ","pages":"Article 100043"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000132/pdfft?md5=92c4f652893809c6f3e06131e312c290&pid=1-s2.0-S2667119024000132-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
T-cell receptor binding prediction: A machine learning revolution T 细胞受体结合预测:机器学习革命
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-09-01 Epub Date: 2024-07-22 DOI: 10.1016/j.immuno.2024.100040
Anna Weber , Aurélien Pélissier , María Rodríguez Martínez
{"title":"T-cell receptor binding prediction: A machine learning revolution","authors":"Anna Weber ,&nbsp;Aurélien Pélissier ,&nbsp;María Rodríguez Martínez","doi":"10.1016/j.immuno.2024.100040","DOIUrl":"10.1016/j.immuno.2024.100040","url":null,"abstract":"<div><p>Recent advancements in immune sequencing and experimental techniques are generating extensive T cell receptor (TCR) repertoire data, enabling the development of models to predict TCR binding specificity. Despite the computational challenges posed by the vast diversity of TCRs and epitopes, significant progress has been made. This review explores the evolution of computational models designed for this task, emphasizing machine learning efforts, including early unsupervised clustering approaches, supervised models, and recent applications of Protein Language Models (PLMs), deep learning models pretrained on extensive collections of unlabeled protein sequences that capture crucial biological properties.</p><p>We survey the most prominent models in each category and offer a critical discussion on recurrent challenges, including the lack of generalization to new epitopes, dataset biases, and shortcomings in model validation designs. Focusing on PLMs, we discuss the transformative impact of Transformer-based protein models in bioinformatics, particularly in TCR specificity analysis. We discuss recent studies that exploit PLMs to deliver notably competitive performances in TCR-related tasks, while also examining current limitations and future directions. Lastly, we address the pressing need for improved interpretability in these often opaque models, and examine current efforts to extract biological insights from large black box models.</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"15 ","pages":"Article 100040"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000107/pdfft?md5=d53078634a01ebcc5850282ff7db1fa1&pid=1-s2.0-S2667119024000107-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141961980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Navigating the immunosuppressive brain tumor microenvironment using spatial biology 利用空间生物学为免疫抑制性脑肿瘤微环境导航
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-09-01 Epub Date: 2024-08-13 DOI: 10.1016/j.immuno.2024.100041
Samuel S. Widodo , Marija Dinevska , Stanley S. Stylli , Adriano L. Martinelli , Marianna Rapsomaniki , Theo Mantamadiotis
{"title":"Navigating the immunosuppressive brain tumor microenvironment using spatial biology","authors":"Samuel S. Widodo ,&nbsp;Marija Dinevska ,&nbsp;Stanley S. Stylli ,&nbsp;Adriano L. Martinelli ,&nbsp;Marianna Rapsomaniki ,&nbsp;Theo Mantamadiotis","doi":"10.1016/j.immuno.2024.100041","DOIUrl":"10.1016/j.immuno.2024.100041","url":null,"abstract":"<div><p>With the application of spatial biology, the detection and identification of the diverse cell types present in the tumor microenvironment, including specific immune subsets, is possible at single cell resolution. Since spatial biology analysis of tumor tissue allows multiple biological parameters to be measured, including cell type, cell number, cell state, as well as the precise location and the spatial relationship of every cell to other cells and histopathological hallmarks, a vast amount of data is generated. The power of this is realized when correlating the spatial biology data with clinical data for each patient, from which the tissue was collected during biopsy or surgery, conducted as part of the patient's diagnosis and treatment. Aside from the enormous leap in chemistry and molecular biology technology required to develop the analytical tools for spatial biology, collection, analysis of cells in the tumor microenvironment has been possible only with the development of computational tools capable of deciphering tumor tissue complexity to predict tumor evolution and response to treatment and the role of immune cells in regulating tumor biology. Here we describe how spatial biology analysis, combined with computational analysis have been used to deconstruct the complexity of the brain tumor microenvironment and shed light on why brain tumors exhibit extreme immunosuppression. We also discuss how the understanding gained using spatial biology has shed light on how tumor immunosuppression can be overcome.</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"15 ","pages":"Article 100041"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000119/pdfft?md5=04d68aa94c0735faff67ea6c15c37656&pid=1-s2.0-S2667119024000119-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141997366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Guiding a language-model based protein design method towards MHC Class-I immune-visibility targets in vaccines and therapeutics 引导基于语言模型的蛋白质设计方法,实现疫苗和治疗中的 MHC I 类免疫可见性目标
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-06-01 Epub Date: 2024-05-07 DOI: 10.1016/j.immuno.2024.100035
Hans-Christof Gasser , Diego A. Oyarzún , Ajitha Rajan , Javier Antonio Alfaro
{"title":"Guiding a language-model based protein design method towards MHC Class-I immune-visibility targets in vaccines and therapeutics","authors":"Hans-Christof Gasser ,&nbsp;Diego A. Oyarzún ,&nbsp;Ajitha Rajan ,&nbsp;Javier Antonio Alfaro","doi":"10.1016/j.immuno.2024.100035","DOIUrl":"10.1016/j.immuno.2024.100035","url":null,"abstract":"<div><p>Proteins have an arsenal of medical applications that include disrupting protein interactions, acting as potent vaccines, and replacing genetically deficient proteins. While therapeutics must avoid triggering unwanted immune-responses, vaccines should support a robust immune-reaction targeting a broad range of pathogen variants. Therefore, computational methods modifying proteins’ immunogenicity without disrupting function are needed. While many components of the immune-system can be involved in a reaction, we focus on Cytotoxic T-lymphocytes (CTLs). These target short peptides presented via the MHC Class I (MHC-I) pathway. To explore the limits of modifying the visibility of those peptides to CTLs within the distribution of naturally occurring sequences, we developed a novel machine learning technique, <span>CAPE-XVAE</span>. It combines a language model with reinforcement learning to modify a protein’s immune-visibility. Our results show that <span>CAPE-XVAE</span> effectively modifies the visibility of the HIV Nef protein to CTLs. We contrast <span>CAPE-XVAE</span> to <span>CAPE-Packer</span>, a physics-based method we also developed. Compared to <span>CAPE-Packer</span>, the machine learning approach suggests sequences that draw upon local sequence similarities in the training set. This is beneficial for vaccine development, where the sequence should be representative of the real viral population. Additionally, the language model approach holds promise for preserving both known and unknown functional constraints, which is essential for the immune-modulation of therapeutic proteins. In contrast, <span>CAPE-Packer</span>, emphasizes preserving the protein’s overall fold and can reach greater extremes of immune-visibility, but falls short of capturing the sequence diversity of viral variants available to learn from. Source code: <span>https://github.com/hcgasser/CAPE</span><svg><path></path></svg> (Tag: <span>v1.1</span>)</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"14 ","pages":"Article 100035"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000053/pdfft?md5=add2e81105c2c0a169282f80ff064817&pid=1-s2.0-S2667119024000053-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141049339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In silico single-cell metabolism analysis unravels a new transition stage of CD8 T cells 4 days post-infection 硅学单细胞代谢分析揭示了感染后 4 天 CD8 T 细胞的新过渡阶段
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-06-01 Epub Date: 2024-05-30 DOI: 10.1016/j.immuno.2024.100038
Christophe Arpin , Franck Picard , Olivier Gandrillon
{"title":"In silico single-cell metabolism analysis unravels a new transition stage of CD8 T cells 4 days post-infection","authors":"Christophe Arpin ,&nbsp;Franck Picard ,&nbsp;Olivier Gandrillon","doi":"10.1016/j.immuno.2024.100038","DOIUrl":"https://doi.org/10.1016/j.immuno.2024.100038","url":null,"abstract":"<div><p>CD8 T cell proper differentiation during antiviral responses relies on metabolic adaptations. Herein, we investigated global metabolic activity in single CD8 T cells along an <em>in vivo</em> response by estimating metabolic fluxes from single-cell RNA-sequencing data. The approach was validated by the observation of metabolic variations known from experimental studies on global cell populations, while adding temporally detailed information and unravelling yet undescribed sections of CD8 T cell metabolism that are affected by cellular differentiation. Furthermore, inter-cellular variability in gene expression level, highlighted by single cell data, and heterogeneity of metabolic activity 4 days post-infection, revealed a new transition stage accompanied by a metabolic switch in activated cells differentiating into full-blown effectors.</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"14 ","pages":"Article 100038"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000089/pdfft?md5=97df354a875ea3c5bae8550349b1ee7d&pid=1-s2.0-S2667119024000089-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141243599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SARS-CoV-2-identical protein regions found in mammalian coronaviruses have immunogenic potential and can imply cross-protection 在哺乳动物冠状病毒中发现的与 SARS-CoV-2 相同的蛋白质区域具有免疫原性,可能意味着交叉保护
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-06-01 Epub Date: 2024-04-03 DOI: 10.1016/j.immuno.2024.100034
Luciano Rodrigo Lopes
{"title":"SARS-CoV-2-identical protein regions found in mammalian coronaviruses have immunogenic potential and can imply cross-protection","authors":"Luciano Rodrigo Lopes","doi":"10.1016/j.immuno.2024.100034","DOIUrl":"https://doi.org/10.1016/j.immuno.2024.100034","url":null,"abstract":"<div><p>Coronaviruses are known to infect a wide range of mammals. In humans, coronaviruses have been responsible for causing the common cold. The immune response against common cold coronaviruses appears to elicit a cross-protective response to SARS-CoV-2. This study identified protein regions in the mammalian coronaviruses' proteome that are identical to those of SARS-CoV-2. Using bioinformatics analysis, the study predicted the involvement of SARS-CoV-2-identical protein regions, identified in mammalian coronaviruses, in antigen-presenting processes and their ability to elicit immune responses. The SARS-CoV-2-identical protein regions were predominantly found in the proteomes of betacoronaviruses, with less prevalence in alphacoronaviruses. Alphacoronaviruses, such as FCoV in domestic felines and MCoV in minks, are known to infect species highly susceptible to SARS-CoV-2. In contrast, betacoronaviruses infect mammals with lower susceptibility to SARS-CoV-2, including dogs, mice, and farmed animals. Furthermore, betacoronaviruses exhibited a higher number of peptides with an increased potential for efficient presentation during the antigen-presenting process, indicating their greater immunogenicity. Conversely, the SW1 gammacoronavirus showed a lower count of SARS-CoV-2 protein regions and a reduced potential for efficient antigen presentation. The results suggested that the elevated number of SARS-CoV-2 identical stretches found in betacoronaviruses may provide potential cross-protection between SARS-CoV-2 and mammalian betacoronaviruses. This cross-protection could be similar to that observed between human coronaviruses causing the common cold and SARS-CoV-2. The limited numbers observed in the proteomes of FCoV, MCoV, and SW1-CoV may offer an explanation for the susceptibility of cats and minks to SARS-CoV-2, as well as a potential vulnerability in cetaceans.</p></div>","PeriodicalId":73343,"journal":{"name":"Immunoinformatics (Amsterdam, Netherlands)","volume":"14 ","pages":"Article 100034"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2667119024000041/pdfft?md5=910020ff52d72814379c047e7f9baa60&pid=1-s2.0-S2667119024000041-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140533472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Do domain-specific protein language models outperform general models on immunology-related tasks? 在免疫学相关任务中,特定领域的蛋白质语言模型是否优于一般模型?
Immunoinformatics (Amsterdam, Netherlands) Pub Date : 2024-06-01 Epub Date: 2024-05-18 DOI: 10.1016/j.immuno.2024.100036
Nicolas Deutschmann , Aurelien Pelissier , Anna Weber , Shuaijun Gao , Jasmina Bogojeska , María Rodríguez Martínez
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