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Chiu HW, Lin CH, Lee HH, Lu HW, Lin YHK, Lin YF, Lee HL. Guanylate binding protein 5 triggers NF-κB activation to foster radioresistance, metastatic progression and PD-L1 expression in oral squamous cell carcinoma. Clin Immunol 2024; 259:109892. [PMID: 38185269 DOI: 10.1016/j.clim.2024.109892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 01/09/2024]
Abstract
Radioresistance and metastasis are critical issues in managing oral squamous cell carcinoma (OSCC). Although immune checkpoint inhibitors (ICIs) has been recommended to treat OSCC, lacking useful biomarkers limited their anti-cancer effectiveness. We found that guanylate binding protein 5 (GBP5) is upregulated in primary tumors and associates with radioresistance in OSCC. GBP5 expression causally associated with cellular radioresistance and migration ability in the OSCC cell variants. GBP5 upregulation was examined to be correlated with NF-κB activation and programmed cell death-ligand 1 (PD-L1) elevation in OSCC samples. GBP5 knockdown was mitigated, but overexpression enhanced, NF-κB activity and PD-L1 expression in the OSCC cells. NF-κB inhibition by SN50 dramatically suppressed the GBP5-forested irradiation resistance, cellular migration ability and PD-L1 expression in OSCC cells. Importantly, GBP5 upregulation predicted a favorable outcome in cancer patients received ICI treatment. Our findings provide GBP5 as a useful biomarker to predict the anti-OSCC effectiveness of irradiation and ICIs.
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Affiliation(s)
- Hui-Wen Chiu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei 11031, Taiwan
| | - Che-Hsuan Lin
- Department of Otolaryngology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Otolaryngology, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsun-Hua Lee
- Department of Neurology, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan; Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Neurology, Vertigo and Balance Impairment Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
| | - Hsiao-Wei Lu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Otolaryngology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Otolaryngology Head and Neck Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan
| | - Yu-Hsien Kent Lin
- Department of Obstetrics and Gynaecology, North Shore Private Hospital, Sydney, NSW, Australia; Department of Gynecology, Ryde Hospital, Northern Sydney Local Health District, Sydney, Australia; Northern Clinical School, Faculty of Medicine and Health, The University of Sydney, NSW, Australia
| | - Yuan-Feng Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Hsin-Lun Lee
- Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Radiation Oncology, Taipei Medical University Hospital, Taipei 11031, Taiwan.
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Tseng CC, Hung CC, Shu CW, Lee CH, Chen CF, Kuo MS, Kao YY, Chen CL, Ger LP, Liu PF. The Clinical and Biological Effects of Receptor Expression-Enhancing Protein 6 in Tongue Squamous Cell Carcinoma. Biomedicines 2023; 11:biomedicines11051270. [PMID: 37238941 DOI: 10.3390/biomedicines11051270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/07/2023] [Accepted: 04/23/2023] [Indexed: 05/28/2023] Open
Abstract
There are currently no effective biomarkers for the diagnosis and treatment of tongue squamous cell carcinoma (TSCC), which causes a poor 5-year overall survival rate. Thus, it is crucial to identify more effective diagnostic/prognostic biomarkers and therapeutic targets for TSCC patients. The receptor expression-enhancing protein 6 (REEP6), a transmembrane endoplasmic reticulum resident protein, controls the expression or transport of a subset of proteins or receptors. Although it was reported that REEP6 plays a role in lung and colon cancers, its clinical impact and biological role in TSCC are still unknown. The present study aimed to identify a novel effective biomarker and therapeutic target for TSCC patients. Expression levels of REEP6 in specimens from TSCC patients were determined with immunohistochemistry. Gene knockdown was used to evaluate the effects of REEP6 in cancer malignancy (colony/tumorsphere formation, cell cycle regulation, migration, drug resistance and cancer stemness) of TSCC cells. The clinical impact of REEP6 expression and gene co-expression on prognosis were analyzed in oral cancer patients including TSCC patients from The Cancer Genome Atlas database. Tumor tissues had higher levels of REEP6 compared to normal tissues in TSCC patients. Higher REEP6 expression was related to shorter disease-free survival (DFS) in oral cancer patients with poorly differentiated tumor cells. REEP6-knocked-down TSCC cells showed diminished colony/tumorsphere formation, and they also caused G1 arrest and decreased migration, drug resistance and cancer stemness. A high co-expression of REEP6/epithelial-mesenchymal transition or cancer stemness markers also resulted in poor DFS in oral cancer patients. Thus, REEP6 is involved in the malignancy of TSCC and might serve as a potential diagnostic/prognostic biomarker and therapeutic target for TSCC patients.
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Affiliation(s)
- Chung-Chih Tseng
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Department of Dentistry, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 81342, Taiwan
| | - Chung-Ching Hung
- Department of Otolaryngology, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 81342, Taiwan
| | - Chih-Wen Shu
- Institute of BioPharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Cheng-Hsin Lee
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Chun-Feng Chen
- Department of Stomatology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
| | - Mei-Shu Kuo
- Department of Biotechnology, Chia Nan University, Tainan 71710, Taiwan
| | - Yu-Ying Kao
- Department of Biotechnology, Chia Nan University, Tainan 71710, Taiwan
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Luo-Ping Ger
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
| | - Pei-Feng Liu
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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Zhao Y, Wu J, Li L, Zhang H, Zhang H, Li J, Zhong H, Lei T, Jin Y, Xu B, Song Q. Guanylate-Binding Protein 1 as a Potential Predictor of Immunotherapy: A Pan-Cancer Analysis. Front Genet 2022; 13:820135. [PMID: 35222540 PMCID: PMC8867058 DOI: 10.3389/fgene.2022.820135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/11/2022] [Indexed: 01/14/2023] Open
Abstract
Background: Mainstream application of cancer immunotherapy is hampered by the low response rate of most cancer patients. A novel immunotherapeutic target or a biomarker predicting response to immunotherapy needs to be developed. Guanylate-binding protein 1 (GBP1) is an interferon (IFN)-inducible guanosine triphosphatases (GTPases) involving inflammation and infection. However, the immunological effects of GBP1 in pan-cancer patients are still obscure. Methods: Using large-scale public data, we delineated the landscape of GBP1 across 33 cancer types. The correlation between GBP1 expression or mutation and immune cell infiltration was estimated by ESTIMATE, TIMER, xCell, and quanTIseq algorithms. GBP1-related genes and proteins were subjected to function enrichment analysis. Clustering analysis explored the relationship between GBP1 expression and anti-tumor immune phenotypes. We assessed the patient’s response to immunotherapy using the tumor immune dysfunction and exclusion (TIDE) score and immunophenoscore (IPS). Furthermore, we validated the predictive power of GBP1 expression in four independent immunotherapy cohorts. Results: GBP1 was differentially expressed in tumors and normal tissues in multiple cancer types. Distinct correlations existed between GBP1 expression and prognosis in cancer patients. GBP1 expression and mutation were positively associated with immune cell infiltration. Function enrichment analysis showed that GBP1-related genes were enriched in immune-related pathways. Positive correlations were also observed between GBP1 expression and the expression of immune checkpoints, as well as tumor mutation burden (TMB). Pan-cancer patients with higher GBP1 expression were more inclined to display “hot” anti-tumor immune phenotypes and had lower TIDE scores and higher immunophenoscore, suggesting that these patients had better responses to immunotherapy. Patients with higher GBP1 expression exhibited improved overall survival and clinical benefits in immunotherapy cohorts, including the Gide et al. cohort [area under the curve (AUC): 0.813], the IMvigor210 cohort (AUC: 0.607), the Lauss et al. cohort (AUC: 0.740), and the Kim et al. cohort (AUC: 0.793). Conclusion: This study provides comprehensive insights into the role of GBP1 in a pan-cancer manner. We identify GBP1 expression as a predictive biomarker for immunotherapy, potentially enabling more precise and personalized immunotherapeutic strategies in the future.
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Affiliation(s)
- Yaqi Zhao
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jie Wu
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lan Li
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Huibo Zhang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
- Department of Bioinformatics, Wissenschaftszentrum Weihenstephan, Technical University of Munich, Freising, Germany
| | - Haohan Zhang
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jing Li
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hao Zhong
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tianyu Lei
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yan Jin
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Bin Xu
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
- *Correspondence: Bin Xu, ; Qibin Song,
| | - Qibin Song
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
- *Correspondence: Bin Xu, ; Qibin Song,
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Wang R, Li S, Wen W, Zhang J. Multi-Omics Analysis of the Effects of Smoking on Human Tumors. Front Mol Biosci 2021; 8:704910. [PMID: 34796198 PMCID: PMC8592943 DOI: 10.3389/fmolb.2021.704910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/15/2021] [Indexed: 12/13/2022] Open
Abstract
Comprehensive studies on cancer patients with different smoking histories, including non-smokers, former smokers, and current smokers, remain elusive. Therefore, we conducted a multi-omics analysis to explore the effect of smoking history on cancer patients. Patients with smoking history were screened from The Cancer Genome Atlas database, and their multi-omics data and clinical information were downloaded. A total of 2,317 patients were included in this study, whereby current smokers presented the worst prognosis, followed by former smokers, while non-smokers showed the best prognosis. More importantly, smoking history was an independent prognosis factor. Patients with different smoking histories exhibited different immune content, and former smokers had the highest immune cells and tumor immune microenvironment. Smokers are under a higher incidence of genomic instability that can be reversed following smoking cessation in some changes. We also noted that smoking reduced the sensitivity of patients to chemotherapeutic drugs, whereas smoking cessation can reverse the situation. Competing endogenous RNA network revealed that mir-193b-3p, mir-301b, mir-205-5p, mir-132-3p, mir-212-3p, mir-1271-5p, and mir-137 may contribute significantly in tobacco-mediated tumor formation. We identified 11 methylation driver genes (including EIF5A2, GBP6, HGD, HS6ST1, ITGA5, NR2F2, PLS1, PPP1R18, PTHLH, SLC6A15, and YEATS2), and methylation modifications of some of these genes have not been reported to be associated with tumors. We constructed a 46-gene model that predicted overall survival with good predictive power. We next drew nomograms of each cancer type. Interestingly, calibration diagrams and concordance indexes are verified that the nomograms were highly accurate for the prognosis of patients. Meanwhile, we found that the 46-gene model has good applicability to the overall survival as well as to disease-specific survival and progression-free intervals. The results of this research provide new and valuable insights for the diagnosis, treatment, and follow-up of cancer patients with different smoking histories.
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Affiliation(s)
- Rui Wang
- Department of Hepatobiliary Surgery, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Shanshan Li
- Department of Nursing, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Wen Wen
- Department of Hepatobiliary Surgery, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Jianquan Zhang
- Department of Hepatobiliary Surgery, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
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Effect of EGFR on SQSTM1 Expression in Malignancy and Tumor Progression of Oral Squamous Cell Carcinoma. Int J Mol Sci 2021; 22:ijms222212226. [PMID: 34830108 PMCID: PMC8625971 DOI: 10.3390/ijms222212226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/09/2021] [Accepted: 11/09/2021] [Indexed: 12/16/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is one of the most common types of malignant tumor. Sequestosome 1 (SQSTM1) serves as an adaptor of autophagy for degrading protein aggregates. The regulation of autophagy by EGFR and its clinical impacts are indicated in various types of cancer. However, the association of EGFR and SQSTM1 in OSCC is still unknown. Our results show that the expression levels of SQSTM1 and EGFR proteins are higher in tumor tissues than in the corresponding tumor-adjacent (CTAN) tissues of OSCC patients. The expression levels of SQSTM1 were positively associated with the EGFR expression level. High co-expression of SQSTM1 and EGFR is associated with poor prognosis in OSCC patients. Moreover, SQSTM1 expression is decreased in EGFR-knockdown cells. Cell growth and invasion/migration are also decreased in cells with single/combined knockdowns of EGFR and SQSTM1 or in SQSTM1-knockdown cells without EGFR kinase inhibitor Lapatinib treatment compared to that in scrambled cells. However, cell growth and invasion/metastasis were not significantly different between the scrambled cells and SQSTM1-knockdown cells in the presence of Lapatinib. This study is the first to indicate the biological roles and clinical significance of SQSTM1 regulation by EGFR in OSCC.
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Xiao K, Wang Y, Zhou L, Wang J, Wang Y, Tong D, Zhu Z, Jiang J. Construction of ceRNA network to identify the lncRNA and mRNA related to non-small cell lung cancer. PLoS One 2021; 16:e0259091. [PMID: 34714841 PMCID: PMC8555814 DOI: 10.1371/journal.pone.0259091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/12/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) harms human health, but its pathogenesis remains unclear. We wish to provide more molecular therapeutic targets for NSCLC. METHODS The NSCLC tissue and normal tissue samples were screened for genetic comparison in the TCGA database. The predicted lncRNA and mRNA in BEAS2B and A549 cells were detected. RESULTS Volcano plot displayed differentially expressed lncRNAs and mRNAs in adjacent tissues and NSCLC tissues. The survival curve showed that the lncRNA and mRNA had a significant impact on the patient's survival. The results of GO term enrichment analysis indicated that mRNA functions were enriched in cell cycle-related pathways. In the ceRNA interaction network, 13 lncRNAs and 20 miRNAs were found to have an interactive relationship. Finally, 3 significantly different lncRNAs (LINC00968, lnc-FAM92A-9 and lnc-PTGFR-1) and 6 mRNAs (CTCFL, KRT5, LY6D, TMEM, GBP6, and TMEM179) with potential therapeutic significance were screened out. And the cell experiment verified our results. CONCLUSION We screened out clinically significant 3 lncRNAs and 6 mRNAs involved in the ceRNA network, which were the key to our future research on the treatment of NSCLC.
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Affiliation(s)
- Kui Xiao
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China
- The Respiratory Disease Diagnosis and Treatment Center of Hunan Province, Changsha, Hunan, China
| | - Yang Wang
- Department of Pathology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Lihua Zhou
- Department of Pulmonary and Critical Care Medicine, University of South China Affiliated Changsha Central Hospital, Changsha City, Hunan Province, China
| | - Jufen Wang
- Department of Pulmonary and Critical Care Medicine, University of South China Affiliated Changsha Central Hospital, Changsha City, Hunan Province, China
| | - Yaohui Wang
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China
- The Respiratory Disease Diagnosis and Treatment Center of Hunan Province, Changsha, Hunan, China
| | - De Tong
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China
- The Respiratory Disease Diagnosis and Treatment Center of Hunan Province, Changsha, Hunan, China
| | - Zhiruo Zhu
- Department of Respiratory and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China
- The Respiratory Disease Diagnosis and Treatment Center of Hunan Province, Changsha, Hunan, China
| | - Jiehan Jiang
- Department of Pulmonary and Critical Care Medicine, University of South China Affiliated Changsha Central Hospital, Changsha City, Hunan Province, China
- * E-mail:
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Liu PF, Shu CW, Lee CH, Sie HC, Liou HH, Cheng JT, Ger LP, Chen CL, Chen CC, Chen CF. Clinical Significance and the Role of Guanylate-Binding Protein 5 in Oral Squamous Cell Carcinoma. Cancers (Basel) 2021; 13:cancers13164043. [PMID: 34439200 PMCID: PMC8394330 DOI: 10.3390/cancers13164043] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/03/2021] [Accepted: 08/08/2021] [Indexed: 12/12/2022] Open
Abstract
Guanylate binding protein 5 (GBP5) is the interferon (IFN)-inducible subfamily of guanosine triphosphatases (GTPases) and is involved in pathogen defense. However, the role played by GBP5 in cancer development, especially in oral squamous cell carcinoma (OSCC), is still unknown. Herein, next-generation sequencing analysis showed that the gene expression levels of GBP5 were significantly higher in OSCC tissues compared with those found in corresponding tumor adjacent normal tissues (CTAN) from two pairs of OSCC patients. Higher gene expression levels of GBP5 were also found in tumor tissues of 23 buccal mucosal squamous cell carcinoma (BMSCC)/14 tongue squamous cell carcinoma (TSCC) patients and 30 oral cancer patients from The Cancer Genome Atlas (TCGA) database compared with those in CTAN tissues. Immunohistochemical results showed that protein expression levels of GBP5 were also higher in the tumor tissues of 353 OSCC patients including 117 BMSCC, 187 TSCC, and 49 lip squamous cell carcinoma patients. Moreover, TCGA database analysis indicated that high gene expression levels of GBP5 were associated with poor overall survival in oral cancer patients with moderate/poor cell differentiation, and associated with poor disease-free survival in oral cancer patients with moderate/poor cell differentiation and lymph node metastasis. Furthermore, GBP5-knockdowned cells exhibited decreased cell growth, arrest at G1 phase, and decreased invasion/migration. The gene expression of markers for epithelial-mesenchymal transition and cancer stemness was also reduced in GBP5-silenced oral cancer cells. Taken together, GBP5 might be a potential biomarker and therapeutic target for OSCC patients, especially for those with poor cell differentiation and lymph node metastasis.
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Affiliation(s)
- Pei-Feng Liu
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (P.-F.L.); or (C.-H.L.)
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chih-Wen Shu
- Institute of BioPharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan;
| | - Cheng-Hsin Lee
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (P.-F.L.); or (C.-H.L.)
| | - Huei-Cin Sie
- Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan;
| | - Huei-Han Liou
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan or (H.-H.L.); (L.-P.G.)
| | - Jiin-Tsuey Cheng
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (J.-T.C.); (C.-L.C.)
| | - Luo-Ping Ger
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan or (H.-H.L.); (L.-P.G.)
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (J.-T.C.); (C.-L.C.)
| | - Chien-Chou Chen
- Family Medicine Division, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 81342, Taiwan
- Correspondence: (C.-C.C.); or (C.-F.C.); Tel.: +886-07-581-7121 (C.-C.C.); +886-07-346-8080 (C.-F.C.)
| | - Chun-Feng Chen
- Department of Stomatology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
- Department of Dental Technology, Shu-Zen Junior College of Medicine and Management, Kaohsiung 82144, Taiwan
- School of Dentistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence: (C.-C.C.); or (C.-F.C.); Tel.: +886-07-581-7121 (C.-C.C.); +886-07-346-8080 (C.-F.C.)
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Guanylate-binding proteins induce apoptosis of leukemia cells by regulating MCL-1 and BAK. Oncogenesis 2021; 10:54. [PMID: 34294680 PMCID: PMC8298518 DOI: 10.1038/s41389-021-00341-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/21/2021] [Accepted: 06/28/2021] [Indexed: 11/08/2022] Open
Abstract
Interferon-inducible guanylate-binding proteins (GBPs) are well-known for mediating host-defense mechanisms against cellular pathogens. Emerging evidence suggests that GBPs are also implicated in tumorigenesis; however, their underlying molecular mechanism is still unknown. In this study, we identified that GBP1 and GBP2 interact with MCL-1, the key prosurvival member of the BCL-2 family, via its BH3 domain. GBPs induce caspase-dependent apoptosis in chronic myeloid leukemia (CML) and acute myeloid leukemia (AML) cells, where the proapoptotic BCL-2 member, BAK, is an indispensable mediator. In particular, GBP2 completely inhibited the MCL-1-mediated promotion of the survival of CML cells through competitive inhibition, resulting in BAK liberation from MCL-1. Concurrently, GBP2 dramatically upregulates BAK expression via its inhibition of the PI3K/AKT pathway. Moreover, paclitaxel upregulates GBP2 expression, and paclitaxel-induced apoptotic activity was distinctively compromised by knockout of GBP2 in CML cells. Bioinformatics analyses of leukemia databases revealed that transcripts of GBPs were generally downregulated in leukemia patients and that GBPs were favorable prognosis markers. Thus, these findings provide molecular evidence of GBPs as apoptosis-inducing proteins of leukemia cells and suggest that GBPs are attractive targets for the development of chemotherapeutics.
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Liu B, Huang R, Fu T, He P, Du C, Zhou W, Xu K, Ren T. GBP2 as a potential prognostic biomarker in pancreatic adenocarcinoma. PeerJ 2021; 9:e11423. [PMID: 34026364 PMCID: PMC8121056 DOI: 10.7717/peerj.11423] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/16/2021] [Indexed: 12/14/2022] Open
Abstract
Background Pancreatic adenocarcinoma (PAAD) is a disease with atypical symptoms, an unfavorable response to therapy, and a poor outcome. Abnormal guanylate-binding proteins (GBPs) play an important role in the host's defense against viral infection and may be related to carcinogenesis. In this study, we sought to determine the relationship between GBP2 expression and phenotype in patients with PAAD and explored the possible underlying biological mechanism. Method We analyzed the expression of GBP2 in PAAD tissues using a multiple gene expression database and a cohort of 42 PAAD patients. We evaluated GBP2's prognostic value using Kaplan-Meier analysis and the Cox regression model. GO and KEGG enrichment analysis, co-expression analysis, and GSEA were performed to illustrate the possible underlying biological mechanism. CIBERSORT and the relative expression of immune checkpoints were used to estimate the relationship between GBP2 expression and tumor immunology. Result GBP2 was remarkably overexpressed in PAAD tissue. The overexpression of GBP2 was correlated with an advanced T stage and poor overall survival (OS) and GBP2 expression was an independent risk factor for OS in PAAD patients. Functional analysis demonstrated that positively co-expressed genes of GBP2 were closely associated with pathways in cancer and the NOD-like receptor signaling pathway. Most of the characteristic immune checkpoints, including PDCD1, PDCDL1, CTLA4, CD80, TIGIT, LAG3, IDO2, and VISTA, were significantly expressed in the high-GBP2 expression group compared with the low-GBP2 expression group. Conclusion GBP2 acted as a potential prognostic biomarker and was associated with immune infiltration and the expression of immune checkpoints in PAAD.
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Affiliation(s)
- Bo Liu
- Department of Hepatobiliary Surgery, Pidu District People's Hospital of Chengdu, Chengdu, China.,Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Chengdu Medical College, Chengdu, China.,Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Rongfei Huang
- Department of Pathology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Tingting Fu
- Department of Nosocomial Infection Control, The Third Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Ping He
- Department of Hepatobiliary Surgery, Pidu District People's Hospital of Chengdu, Chengdu, China.,Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Chengyou Du
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Zhou
- Department of Radiology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Ke Xu
- Department of Oncology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Tao Ren
- Department of Oncology, Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
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