PMID- 36267772 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221022 IS - 2305-5839 (Print) IS - 2305-5847 (Electronic) IS - 2305-5839 (Linking) VI - 10 IP - 18 DP - 2022 Sep TI - Screening of key pathogenic genes in advanced knee osteoarthritis based on bioinformatics analysis. PG - 978 LID - 10.21037/atm-22-3863 [doi] LID - 978 AB - BACKGROUND: At present, the progression mechanism of knee osteoarthritis (KOA) has not been fully elucidated, and there is a clinical need for late KOA-specific diagnostic markers to provide reference for preventive treatment. This study aimed to analyze the sequencing results of early- and late-stage KOA synovial tissue based on the key genes of late-stage KOA in combination with a machine learning algorithm. METHODS: The whole transcriptome sequencing results of synovial tissue from KOA patients (GSE176223 and GSE32317) were downloaded from the gene expression omnibus (GEO) database. Thirty-nine early KOA synovial tissue samples and 31 late KOA synovial tissue samples were included in this study. The diagnostic criteria and baseline data balance of early and late KOA were referred to the data source literature, and the two groups of data had good baseline data balance. R software (V3.5.1) and R packages were used for screening and enrichment analysis of differentially expressed genes (DEGs). The key genes were screened by weighted correlation network analysis (WGCNA) and least absolute shrinkage and selection operator (LASSO) regression analysis. A receiver operating characteristic curve (ROC) curve was used to evaluate the diagnostic efficacy of key genes for advanced KOA. RESULTS: A total of 211 DEGs related to knee arthritis were screened out. Compared with synovial tissue of early knee arthritis, 111 genes were upregulated and 100 genes were downregulated in the synovial tissue of late knee arthritis. Sixty-six key genes were screened out through WGCNA and 34 key genes were screened out in the LASSO analysis. The genes obtained by the two algorithms combined with three overlapping genes, namely interleukin- 6 (IL-6), C-X-C chemokine ligand 12 (CXCL12), and macrophage migration inhibitor factor (MIF). The areas under the ROC curves of CXCL12, IL-6, and MIF were 0.96, 0.944, and 0.961, respectively (P<0.001). CONCLUSIONS: IL-6, CXCL12, and MIF are the key pathogenic genes of KOA, which have good diagnostic efficacy for advanced KOA. CI - 2022 Annals of Translational Medicine. All rights reserved. FAU - Yang, Yongju AU - Yang Y AD - The Ministry of National Education Key Lab for Traditional Chinese Medicine Visceral Manifestations Theory and Application, Liaoning University of Traditional Chinese Medicine, Shenyang, China. AD - Department of Orthopaedic Rehabilitation, Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China. FAU - Zhang, Yuqian AU - Zhang Y AD - Academic Office, Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China. FAU - Min, Dongyu AU - Min D AD - Animal Experiment Center, Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China. FAU - Yu, Heshan AU - Yu H AD - Laboratory Department, Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang, China. FAU - Guan, Xuefeng AU - Guan X AD - Party and Government Office, Liaoning University of Traditional Chinese Medicine, Shenyang, China. LA - eng PT - Journal Article PL - China TA - Ann Transl Med JT - Annals of translational medicine JID - 101617978 PMC - PMC9577766 OTO - NOTNLM OT - Knee osteoarthritis (KOA) OT - diagnostic efficiency OT - differentially expressed genes (DEGs) OT - machine learning COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://atm.amegroups.com/article/view/10.21037/atm-22-3863/coif). The authors have no conflicts of interest to declare. EDAT- 2022/10/22 06:00 MHDA- 2022/10/22 06:01 PMCR- 2022/09/01 CRDT- 2022/10/21 03:00 PHST- 2022/07/15 00:00 [received] PHST- 2022/09/02 00:00 [accepted] PHST- 2022/10/21 03:00 [entrez] PHST- 2022/10/22 06:00 [pubmed] PHST- 2022/10/22 06:01 [medline] PHST- 2022/09/01 00:00 [pmc-release] AID - atm-10-18-978 [pii] AID - 10.21037/atm-22-3863 [doi] PST - ppublish SO - Ann Transl Med. 2022 Sep;10(18):978. doi: 10.21037/atm-22-3863.