Evidence mapPaperPMID 42295646Full record

ArticleClinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico2026

BUB1B is a novel prognostic-related biomarker and correlated with immune infiltrates in lung adenocarcinoma.

Zhaochun Tian, Shaopeng Jia, Qiming Zheng, Kang Hu, Meng Wang, Pin Li, Jiafei Li, Shuhong Huang, Zhigang Sun

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Article in Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Zhaochun Tian *Department of Medical Science and Technology Innovation Center, The First Affiliated Hospital Of Shandong First Medical University, Jinan, 250014, Shandong, China.
Shaopeng Jia *School of Clinical and Basic Medical Sciences, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
Qiming ZhengDepartment of Thoracic Surgery, Jinan Central Hospital, Shandong University, Jinan, 250013, Shandong, China.
Kang HuDepartment of Thoracic Surgery, Suzhou Medical College of Soochow University, Suzhou, 215000, Jiangsu, China.
Meng WangDepartment of General Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, Shandong, China.
Pin LiSchool of Clinical and Basic Medical Sciences, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
Jiafei LiSchool of Clinical and Basic Medical Sciences, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
Shuhong HuangSchool of Clinical and Basic Medical Sciences, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China. shuhonghuang@sdfmu.edu.cn.ORCID http://orcid.org/0000-0001-6298-6192
Zhigang SunDepartment of Thoracic Surgery, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250013, Shandong, China. sunszg@126.com.

Funding

Development Plan of Medical and Health Science and Technology in Shandong Province 202104020535National Natural Science Foundation of China 81971088Natural Science Foundation of Shandong Province ZR2018MC008Shandong Natural Science Foundation ZR2021QH046
6 · The paper itself

Abstract

backgroundThe BUB1 mitotic checkpoint serine/threonine kinase B (BUB1B), one of the core proteins of the spindle checkpoint, has been linked to a poor prognosis in many tumors. Our purpose was to explore the clinical value and biological function of BUB1B in lung adenocarcinoma (LUAD).

methodsTCGA Level 3 RSEM-normalized RNA-seq data, GTEx standardized expression data, TIMER (for purity-corrected immune infiltration estimation), and single-sample gene set enrichment analysis (ssGSEA) (using the GSVA R package with method = "ssgsea") were used to analyze BUB1B expression, prognosis, immune infiltration in LUAD. The role of BUB1B in H1650 and A549 cells was investigated through knocking-down BUB1B or overexpression BUB1B.

resultsBUB1B expression was significantly increased in LUAD tissues. High levels of BUB1B indicated a worse outcome. BUB1B expression was closely linked to tumor size and TMN stage, which was an independent risk factor for the prognosis of LUAD. BUB1B was associated with 20 types of TIICs as determined by ssGSEA analysis of 28 immune cell signatures. In TIMER database, BUB1B showed a positive correlation with neutrophil infiltration, but negatively correlated with immune infiltration levels of B cells and CD4 + T cells. These findings were cross-validated across TIMER, ssGSEA, and GEPIA platforms. Low dendritic cell infiltration, low B cell infiltration, and high expression of BUB1B were closely linked to lower cumulative survival in patients with LUAD. BUB1B overexpression augmented the proliferation, invasion and migration of A549 and H1650 cells, reduced the apoptosis, and promoted the EMT process. Whereas, BUB1B knockdown showed the opposite results. Additionally, BUB1B overexpression promoted macrophage recruitment by regulating CCL2 and p-P65 expression, as confirmed by in vitro Transwell chemotaxis assays using THP-1-derived macrophages.

conclusionsBUB1B may be a critical factor in regulating immune function and may serve as a novel clinical prognostic marker of LUAD patients.

Indexed as

BUB1BDiagnosisLung adenocarcinomaPrognosisTumor-infiltrating immune cellsTumor microenvironment

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.