Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis

Abstract Background Branched-chain amino acids (BCAA) metabolism is significantly associated with osteoarthritis (OA), but the specific mechanism of BCAA related genes (BCAA-RGs) in OA is still unclear. Therefore, this research intended to identify potential biomarkers and mechanisms of action of BC...

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Main Authors: Xiao-Zhi ZhaYang, Yan-Xiong Chen, Wen-Da Hua, Zheng-Lin Bai, Yun-Peng Jin, Xing-Wen Zhao, Quan-Fu Liu, Zeng-Dong Meng
Format: Article
Language:English
Published: BMC 2025-05-01
Series:BMC Musculoskeletal Disorders
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Online Access:https://doi.org/10.1186/s12891-025-08779-6
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author Xiao-Zhi ZhaYang
Yan-Xiong Chen
Wen-Da Hua
Zheng-Lin Bai
Yun-Peng Jin
Xing-Wen Zhao
Quan-Fu Liu
Zeng-Dong Meng
author_facet Xiao-Zhi ZhaYang
Yan-Xiong Chen
Wen-Da Hua
Zheng-Lin Bai
Yun-Peng Jin
Xing-Wen Zhao
Quan-Fu Liu
Zeng-Dong Meng
author_sort Xiao-Zhi ZhaYang
collection DOAJ
description Abstract Background Branched-chain amino acids (BCAA) metabolism is significantly associated with osteoarthritis (OA), but the specific mechanism of BCAA related genes (BCAA-RGs) in OA is still unclear. Therefore, this research intended to identify potential biomarkers and mechanisms of action of BCAA-RGs in OA tissues. Methods Differential genes were obtained from the Gene Expression Omnibus (GEO) database and intersections were taken with BCAA-RGs to identify candidate genes. The underlying mechanisms were revealed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). Subsequently, by combining three machine learning algorithms to identify genes with highly correlated OA features. In addition, created diagnostic maps and subject Receiver operating characteristic curves (ROCs) to assess the ability of the signature genes to diagnose OA and to predict their possible roles in molecular regulatory network axes and molecular signaling pathways. Results Eight candidate genes were acquired by intersecting 4,178 DEGs and 14 BCAA-RGs. Subsequently, five candidate biomarkers were obtained, namely SLC3A2, SLC7A5, SLC43A2, SLC43A1, and SLC7A7. Importantly, SLC3A2 and SLC7A5 were validated by validation set and qRT-PCR. Furthermore, the nomogram constructed by SLC3A2 and SLC7A5 exhibited excellent accuracy in predicting the incidence of OA. The enrichment results demonstrated that SLC3A2 and SLC7A5 were significantly enriched in ribosome, insulin signaling pathway, olfactory transduction, etc. Meanwhile, we also found XIST regulated SLC7A5 through hsa-miR-30e-5p, and regulated SLC3A2 through hsa-miR-7-5p.OIP5-AS1 regulated SLC7A5 and SLC3A2 through hsa-miR-7-5p. By the way, 150 drugs were identified, including Acetaminophen and Acrylamide, which exhibited simultaneous targeting of these two biomarkers. Conclusion Based on bioinformatics, SLC3A2 and SLC7A5 were identified as biomarkers related to BCAA in OA, which may provide a new reference for the treatment and diagnosis of OA patients.
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spelling doaj-art-908a69f390a64d7a88c78bc8c3a52d1c2025-08-20T03:22:15ZengBMCBMC Musculoskeletal Disorders1471-24742025-05-0126111610.1186/s12891-025-08779-6Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritisXiao-Zhi ZhaYang0Yan-Xiong Chen1Wen-Da Hua2Zheng-Lin Bai3Yun-Peng Jin4Xing-Wen Zhao5Quan-Fu Liu6Zeng-Dong Meng7Faculty of Medical Science, Kunming University of Science and TechnologyFaculty of Medical Science, Kunming University of Science and TechnologyDepartment of Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and TechnologyDepartment of Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and TechnologyDepartment of Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and TechnologyDepartment of Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and TechnologyDepartment of Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and TechnologyFaculty of Medical Science, Kunming University of Science and TechnologyAbstract Background Branched-chain amino acids (BCAA) metabolism is significantly associated with osteoarthritis (OA), but the specific mechanism of BCAA related genes (BCAA-RGs) in OA is still unclear. Therefore, this research intended to identify potential biomarkers and mechanisms of action of BCAA-RGs in OA tissues. Methods Differential genes were obtained from the Gene Expression Omnibus (GEO) database and intersections were taken with BCAA-RGs to identify candidate genes. The underlying mechanisms were revealed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). Subsequently, by combining three machine learning algorithms to identify genes with highly correlated OA features. In addition, created diagnostic maps and subject Receiver operating characteristic curves (ROCs) to assess the ability of the signature genes to diagnose OA and to predict their possible roles in molecular regulatory network axes and molecular signaling pathways. Results Eight candidate genes were acquired by intersecting 4,178 DEGs and 14 BCAA-RGs. Subsequently, five candidate biomarkers were obtained, namely SLC3A2, SLC7A5, SLC43A2, SLC43A1, and SLC7A7. Importantly, SLC3A2 and SLC7A5 were validated by validation set and qRT-PCR. Furthermore, the nomogram constructed by SLC3A2 and SLC7A5 exhibited excellent accuracy in predicting the incidence of OA. The enrichment results demonstrated that SLC3A2 and SLC7A5 were significantly enriched in ribosome, insulin signaling pathway, olfactory transduction, etc. Meanwhile, we also found XIST regulated SLC7A5 through hsa-miR-30e-5p, and regulated SLC3A2 through hsa-miR-7-5p.OIP5-AS1 regulated SLC7A5 and SLC3A2 through hsa-miR-7-5p. By the way, 150 drugs were identified, including Acetaminophen and Acrylamide, which exhibited simultaneous targeting of these two biomarkers. Conclusion Based on bioinformatics, SLC3A2 and SLC7A5 were identified as biomarkers related to BCAA in OA, which may provide a new reference for the treatment and diagnosis of OA patients.https://doi.org/10.1186/s12891-025-08779-6OsteoarthritisBranched-chain amino acidsMachine learningBioinformatic analysisDrug prediction
spellingShingle Xiao-Zhi ZhaYang
Yan-Xiong Chen
Wen-Da Hua
Zheng-Lin Bai
Yun-Peng Jin
Xing-Wen Zhao
Quan-Fu Liu
Zeng-Dong Meng
Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
BMC Musculoskeletal Disorders
Osteoarthritis
Branched-chain amino acids
Machine learning
Bioinformatic analysis
Drug prediction
title Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
title_full Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
title_fullStr Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
title_full_unstemmed Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
title_short Integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
title_sort integrating bioinformatics and machine learning to identify biomarkers of branched chain amino acid related genes in osteoarthritis
topic Osteoarthritis
Branched-chain amino acids
Machine learning
Bioinformatic analysis
Drug prediction
url https://doi.org/10.1186/s12891-025-08779-6
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