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Ribonucleotide reductase (RR) consists of two subunits, the large subunit RRM1 and the small subunit (RRM2 or RRM2B), which is essential for DNA replication. Dysregulations of RR were implicated in multiple types of cancer. However, the abnormal expressions and biologic functions of RR subunits in liver cancer remain to be elucidated. Methods. TCGA, HCCDB, CCLE, HPA, cBioPortal, and GeneMANIA were utilized to perform bioinformatics analysis of RR subunits in the liver cancer. GO, KEGG, and GSEA were used for enrichment analysis. Results. The expressions of RRM1, RRM2, and RRM2B were remarkably upregulated among liver cancer tissue both in mRNA and protein levels. High expression of RRM1 and RRM2 was notably associated with high tumor grade, high stage, short overall survival, and disease-specific survival. Enrichment analyses indicated that RRM1 and RRM2 were related to DNA replication, cell cycle, regulation of nuclear division, DNA repair, and DNA recombination. Correlation analysis indicated that RRM1 and RRM2 were significantly associated with several subsets of immune cell, including Th2 cells, cytotoxic cells, and neutrophils. RRM2B expression was positively associated with immune score and stromal score. Chemosensitivity analysis revealed that sensitivity of nelarabine was positively associated with high expressions of RRM1 and RRM2. The sensitivity of rapamycin was positively associated with high expressions of RRM2B. Conclusion. Our findings demonstrated high expression profiles of RR subunits in liver cancer, which may provide novel insights for predicting the poor prognosis and increased chemosensitivity of liver cancer in clinic.<\/jats:p>","DOI":"10.1155\/2023\/3878796","type":"journal-article","created":{"date-parts":[[2023,1,20]],"date-time":"2023-01-20T16:20:53Z","timestamp":1674231653000},"page":"1-14","source":"Crossref","is-referenced-by-count":10,"title":["Prognostic and Immunological Potential of Ribonucleotide Reductase Subunits in Liver Cancer"],"prefix":"10.1155","volume":"2023","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4177-3048","authenticated-orcid":true,"given":"Xin","family":"Yin","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9555-1942","authenticated-orcid":true,"given":"Kan","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyang","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0608-7779","authenticated-orcid":true,"given":"Hao","family":"Yu","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0094-8152","authenticated-orcid":true,"given":"Danfang","family":"Yan","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1586-2266","authenticated-orcid":true,"given":"Xingkang","family":"He","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University Medical School, Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6902-0892","authenticated-orcid":true,"given":"Senxiang","family":"Yan","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, Zhejiang 310003, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.3322\/caac.21654"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1002\/hep.29913"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1038\/s41572-020-00240-3"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-030-21540-8_11"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1038\/s41571-018-0073-4"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1016\/S1570-9639(04)00054-8"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.3390\/life5010604"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1211289109"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1038\/35003506"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdermsci.2012.07.005"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1016\/j.oraloncology.2008.07.005"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-3835(02)00588-8"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2559.2010.03725.x"},{"issue":"12","key":"14","first-page":"2151","article-title":"Overexpression of catalytic subunit M2 in patients with ovarian cancer","volume":"125","author":"L. 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