1
|
Li H, Sun X, Lv Y, Wei G, Ni T, Qin W, Jin H, Jia Q. Downregulation of Splicing Factor PTBP1 Curtails FBXO5 Expression to Promote Cellular Senescence in Lung Adenocarcinoma. Curr Issues Mol Biol 2024; 46:7730-7744. [PMID: 39057099 PMCID: PMC11276454 DOI: 10.3390/cimb46070458] [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: 06/03/2024] [Revised: 07/08/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Polypyrimidine tract-binding protein 1 (PTBP1) plays an essential role in splicing and post-transcriptional regulation. Moreover, PTBP1 has been implicated as a causal factor in tumorigenesis. However, the involvement of PTBP1 in cellular senescence, a key biological process in aging and cancer suppression, remains to be clarified. Here, it is shown that PTBP1 is associated with the facilitation of tumor growth and the prognosis in lung adenocarcinoma (LUAD). PTBP1 exhibited significantly increased expression in various cancer types including LUAD and showed consistently decreased expression in multiple cellular senescence models. Suppression of PTBP1 induced cellular senescence in LUAD cells. In terms of molecular mechanisms, the silencing of PTBP1 enhanced the skipping of exon 3 in F-box protein 5 (FBXO5), resulting in the generation of a less stable RNA splice variant, FBXO5-S, which subsequently reduces the overall FBXO5 expression. Additionally, downregulation of FBXO5 was found to induce senescence in LUAD. Collectively, these findings illustrate that PTBP1 possesses an oncogenic function in LUAD through inhibiting senescence, and that targeting aberrant splicing mediated by PTBP1 has therapeutic potential in cancer treatment.
Collapse
Affiliation(s)
- Haoyu Li
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; (H.L.); (X.S.); (Y.L.); (W.Q.); (H.J.)
| | - Xiaoxiao Sun
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; (H.L.); (X.S.); (Y.L.); (W.Q.); (H.J.)
| | - Yuanyuan Lv
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; (H.L.); (X.S.); (Y.L.); (W.Q.); (H.J.)
| | - Gang Wei
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences, Fudan University, Shanghai 200438, China; (G.W.); (T.N.)
| | - Ting Ni
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Human Phenome Institute, School of Life Sciences, Fudan University, Shanghai 200438, China; (G.W.); (T.N.)
| | - Wenxin Qin
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; (H.L.); (X.S.); (Y.L.); (W.Q.); (H.J.)
| | - Haojie Jin
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; (H.L.); (X.S.); (Y.L.); (W.Q.); (H.J.)
| | - Qi Jia
- State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China; (H.L.); (X.S.); (Y.L.); (W.Q.); (H.J.)
| |
Collapse
|
2
|
Zhang C, Pan G, Qin JJ. Role of F-box proteins in human upper gastrointestinal tumors. Biochim Biophys Acta Rev Cancer 2024; 1879:189035. [PMID: 38049014 DOI: 10.1016/j.bbcan.2023.189035] [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: 08/23/2023] [Revised: 11/22/2023] [Accepted: 11/25/2023] [Indexed: 12/06/2023]
Abstract
Protein ubiquitination and degradation is an essential physiological process in almost all organisms. As the key participants in this process, the E3 ubiquitin ligases have been widely studied and recognized. F-box proteins, a crucial component of E3 ubiquitin ligases that regulates diverse biological functions, including cell differentiation, proliferation, migration, and apoptosis by facilitating the degradation of substrate proteins. Currently, there is an increasing focus on studying the role of F-box proteins in cancer. In this review, we present a comprehensive overview of the significant contributions of F-box proteins to the development of upper gastrointestinal tumors, highlighting their dual roles as both carcinogens and tumor suppressors. We delve into the molecular mechanisms underlying the involvement of F-box proteins in upper gastrointestinal tumors, exploring their interactions with specific substrates and their cross-talks with other key signaling pathways. Furthermore, we discuss the implications of F-box proteins in radiotherapy resistance in the upper gastrointestinal tract, emphasizing their potential as clinical therapeutic and prognostic targets. Overall, this review provides an up-to-date understanding of the intricate involvement of F-box proteins in human upper gastrointestinal tumors, offering valuable insights for the identification of prognostic markers and the development of targeted therapeutic strategies.
Collapse
Affiliation(s)
- Che Zhang
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Guangzhao Pan
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Jiang-Jiang Qin
- School of Molecular Medicine, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; Key Laboratory of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer of Zhejiang Province, Hangzhou 310022, China.
| |
Collapse
|
3
|
Fan X, Guan G, Wang J, Jin M, Wang L, Duan X. Licochalcone A induces cell cycle arrest and apoptosis via suppressing MAPK signaling pathway and the expression of FBXO5 in lung squamous cell cancer. Oncol Rep 2023; 50:214. [PMID: 37859622 PMCID: PMC10620845 DOI: 10.3892/or.2023.8651] [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: 06/13/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023] Open
Abstract
Lung squamous cell carcinoma (LSCC) is a highly heterogeneous malignancy with high mortality and few therapeutic options. Licochalcone A (LCA, PubChem ID: 5318998) is a chalcone extracted from licorice and possesses anticancer and anti‑inflammatory activities. The present study aimed to elucidate the anticancer effect of LCA on LSCC and explore the conceivable molecular mechanism. MTT assay revealed that LCA significantly inhibited the proliferation of LSCC cells with less cytotoxicity towards human bronchial epithelial cells. 5‑ethynyl‑2'‑deoxyuridine (EdU) assay demonstrated that LCA could reduce the proliferation rate of LSCC cells. The flow cytometric assays indicated that LCA increased the cell number of the G1 phase and induced the apoptosis of LSCC cells. LCA downregulated the protein expression of cyclin D1, cyclin E, CDK2 and CDK4. Meanwhile, LCA increased the expression level of Bax, cleaved poly(ADP‑ribose)polymerase‑1 (PARP1) and caspase 3, as well as downregulated the level of Bcl‑2. Proteomics assay demonstrated that LCA exerted its antitumor effects via inhibiting mitogen‑activated protein kinase (MAPK) signaling pathways and the expression of F‑box protein 5 (FBXO5). Western blot analysis showed that LCA decreased the expression of p‑ERK1/2, p‑p38MAPK and FBXO5. In the xenograft tumors of LSCC, LCA significantly inhibited the volumes and weight of tumors in nude mice with little toxicity in vital organs. Therefore, the present study demonstrated that LCA effectively inhibited cell proliferation and induced apoptosis in vitro, and suppressed xenograft tumor growth in vivo. LCA may serve as a future therapeutic candidate of LSCC.
Collapse
Affiliation(s)
- Xiaoli Fan
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Guoqiang Guan
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541199, P.R. China
| | - Juan Wang
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541199, P.R. China
| | - Meihua Jin
- Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Liming Wang
- Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541001, P.R. China
| | - Xiaoqun Duan
- Industrial Technology Research Institute of Pharmacy, Guilin Medical University, Guilin, Guangxi 541199, P.R. China
| |
Collapse
|
4
|
Liu P, Wang X, Pan L, Han B, He Z. Prognostic Significance and Immunological Role of FBXO5 in Human Cancers: A Systematic Pan-Cancer Analysis. Front Immunol 2022; 13:901784. [PMID: 35720327 PMCID: PMC9203914 DOI: 10.3389/fimmu.2022.901784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/11/2022] [Indexed: 11/13/2022] Open
Abstract
F-box protein 5 (FBXO5), an essential subunit of the ubiquitin protein ligase complex, is increasingly recognized to exhibit important biological effects in regulating tumor occurrence and progression. The present research was intended to systematically investigate the latent roles of FBXO5 in prognosis and immunological function across cancers. Pan-cancer analyses of FBXO5 were performed based upon publicly available online databases, mainly including the Cancer Genome Atlas (TCGA), Genotype-Tissue Expression (GTEx), UCSC Xena, cBioPortal, and ImmuCellAI, revealing the possible relationships between FBXO5 and prognosis, DNA methylation, tumor microenvironment (TME), infiltration of immune cells, immune-related genes, immune checkpoints, tumor mutation burden (TMB), and microsatellite instability (MSI). The results suggested that FBXO5 was expressed at a high level in numerous tumor cell lines with significant upregulation in most cancers as opposed to normal tissues. Of note, elevated expression of FBXO5 was significantly related to an unfavorable prognosis in many cancer types. Furthermore, DNA methylation and TME were confirmed to display evident correlation with the expression of FBXO5 in several malignancies. Moreover, FBXO5 expression was remarkably positively correlated with the levels of infiltrating Treg cells and Tcm cells in most tumors, but negatively correlated with tumor-infiltrating CD8+ T cells, NK/NKT cells, and Th2 cells. Meanwhile, FBXO5 was demonstrated to be co-expressed with the genes encoding immune activating and suppressive factors, chemokines, chemokine receptors, and major histocompatibility complex (MHC). Immune checkpoints, TMB, and MSI were also overtly associated with FBXO5 dysregulation among diverse kinds of cancers. Additionally, the enrichment analyses showed close relationships between FBXO5 expression and the processes related to cell cycle and immune inflammatory response. These findings provided a detailed comprehension of the oncogenic function of FBXO5. Because of its crucial roles in cancer immunity and tumorigenesis, FBXO5 may serve as a novel prognostic indicator and immunotherapeutic target for various malignancies.
Collapse
Affiliation(s)
- Peng Liu
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Stem Cells Translational Medicine, Shanghai, China
- Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai, China
| | - Xiaojuan Wang
- Department of Pharmacy, Minhang Hospital, Fudan University, Shanghai, China
| | - Lili Pan
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Stem Cells Translational Medicine, Shanghai, China
- Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai, China
| | - Bing Han
- Department of Pharmacy, Minhang Hospital, Fudan University, Shanghai, China
- *Correspondence: Zhiying He, ; Bing Han,
| | - Zhiying He
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Stem Cells Translational Medicine, Shanghai, China
- Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai, China
- *Correspondence: Zhiying He, ; Bing Han,
| |
Collapse
|
5
|
Bolhuis DL, Martinez‐Chacin RC, Welsh KA, Bodrug T, Cui L, Emanuele MJ, Brown NG. Examining the mechanistic relationship of
APC
/
C
CDH1
and its interphase inhibitor
EMI1. Protein Sci 2022; 31:e4324. [DOI: 10.1002/pro.4324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/22/2022] [Accepted: 04/06/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Derek L. Bolhuis
- Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| | - Raquel C. Martinez‐Chacin
- Department of Pharmacology and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| | - Kaeli A. Welsh
- Department of Pharmacology and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| | - Tatyana Bodrug
- Department of Biochemistry and Biophysics and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| | - Liying Cui
- Department of Pharmacology and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| | - Michael J. Emanuele
- Department of Pharmacology and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| | - Nicholas G. Brown
- Department of Pharmacology and Lineberger Comprehensive Cancer Center University of North Carolina Chapel Hill North Carolina USA
| |
Collapse
|
6
|
Gao J, Yang D, Cao R, Huang H, Ma J, Wang Z, Xia J, Pan X. The role of Fbxo5 in the development of human malignant tumors. Am J Cancer Res 2022; 12:1456-1464. [PMID: 35530293 PMCID: PMC9077063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 03/09/2022] [Indexed: 06/14/2023] Open
Abstract
Fbxo5 (F-Box only protein 5), as a substrate recognition subunit of SCF (SKP1-Cullin1-Fbox) protein, plays a crucial role in various cellular processes through ubiquitination and degradation of multiple proteins. In recent years, many studies have pointed out that Fbxo5 is critically involved in carcinogenesis. Moreover, targeting Fbxo5 could have a therapeutic potential for cancer therapy. This review focuses on the functions of Fbxo5 in various types of human malignancies and its underlying molecular mechanisms. This review might lay the foundation for enhancing future investigation on Fbxo5 functions in cancer development and progression.
Collapse
Affiliation(s)
- Junjie Gao
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| | - Dandan Yang
- Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| | - Ruoxue Cao
- Department of Laboratory, Lianyungang Second People’s HospitalLianyungang 222000, Jiangsu, China
| | - Hua Huang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| | - Jia Ma
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| | - Zhiwei Wang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| | - Jun Xia
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| | - Xueshan Pan
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical CollegeBengbu 233030, Anhui, China
| |
Collapse
|
7
|
Bodrug T, Welsh KA, Hinkle M, Emanuele MJ, Brown NG. Intricate Regulatory Mechanisms of the Anaphase-Promoting Complex/Cyclosome and Its Role in Chromatin Regulation. Front Cell Dev Biol 2021; 9:687515. [PMID: 34109183 PMCID: PMC8182066 DOI: 10.3389/fcell.2021.687515] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 04/26/2021] [Indexed: 02/04/2023] Open
Abstract
The ubiquitin (Ub)-proteasome system is vital to nearly every biological process in eukaryotes. Specifically, the conjugation of Ub to target proteins by Ub ligases, such as the Anaphase-Promoting Complex/Cyclosome (APC/C), is paramount for cell cycle transitions as it leads to the irreversible destruction of cell cycle regulators by the proteasome. Through this activity, the RING Ub ligase APC/C governs mitosis, G1, and numerous aspects of neurobiology. Pioneering cryo-EM, biochemical reconstitution, and cell-based studies have illuminated many aspects of the conformational dynamics of this large, multi-subunit complex and the sophisticated regulation of APC/C function. More recent studies have revealed new mechanisms that selectively dictate APC/C activity and explore additional pathways that are controlled by APC/C-mediated ubiquitination, including an intimate relationship with chromatin regulation. These tasks go beyond the traditional cell cycle role historically ascribed to the APC/C. Here, we review these novel findings, examine the mechanistic implications of APC/C regulation, and discuss the role of the APC/C in previously unappreciated signaling pathways.
Collapse
Affiliation(s)
- Tatyana Bodrug
- Department of Biochemistry and Biophysics, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Kaeli A Welsh
- Department of Pharmacology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, United States
| | - Megan Hinkle
- Department of Pharmacology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, United States
| | - Michael J Emanuele
- Department of Pharmacology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, United States
| | - Nicholas G Brown
- Department of Pharmacology, Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC, United States
| |
Collapse
|
8
|
Tang J, Kong D, Cui Q, Wang K, Zhang D, Gong Y, Wu G. Prognostic Genes of Breast Cancer Identified by Gene Co-expression Network Analysis. Front Oncol 2018; 8:374. [PMID: 30254986 PMCID: PMC6141856 DOI: 10.3389/fonc.2018.00374] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 08/21/2018] [Indexed: 12/11/2022] Open
Abstract
Breast cancer is one of the most common malignancies. The molecular mechanisms of its pathogenesis are still to be investigated. The aim of this study was to identify the potential genes associated with the progression of breast cancer. Weighted gene co-expression network analysis (WGCNA) was used to construct free-scale gene co-expression networks to explore the associations between gene sets and clinical features, and to identify candidate biomarkers. The gene expression profiles of GSE1561 were selected from the Gene Expression Omnibus (GEO) database. RNA-seq data and clinical information of breast cancer from TCGA were used for validation. A total of 18 modules were identified via the average linkage hierarchical clustering. In the significant module (R2 = 0.48), 42 network hub genes were identified. Based on the Cancer Genome Atlas (TCGA) data, 5 hub genes (CCNB2, FBXO5, KIF4A, MCM10, and TPX2) were correlated with poor prognosis. Receiver operating characteristic (ROC) curve validated that the mRNA levels of these 5 genes exhibited excellent diagnostic efficiency for normal and tumor tissues. In addition, the protein levels of these 5 genes were also significantly higher in tumor tissues compared with normal tissues. Among them, CCNB2, KIF4A, and TPX2 were further upregulated in advanced tumor stage. In conclusion, 5 candidate biomarkers were identified for further basic and clinical research on breast cancer with co-expression network analysis.
Collapse
Affiliation(s)
- Jianing Tang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Deguang Kong
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qiuxia Cui
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Kun Wang
- Department of Thyroid and Breast Surgery, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Zhang
- Department of Thyroid and Breast Surgery, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Gong
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Gaosong Wu
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
9
|
Hou N, Ma J, Li W, Zhao L, Gao Q, Mai L. T-cell immunoglobulin and mucin domain-containing protein-3 and galectin-9 protein expression: Potential prognostic significance in esophageal squamous cell carcinoma for Chinese patients. Oncol Lett 2017; 14:8007-8013. [PMID: 29344243 PMCID: PMC5755026 DOI: 10.3892/ol.2017.7188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 08/23/2017] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to investigate the expression levels of the T-cell immunoglobulin and mucin domain-containing protein-3 (TIM-3) and galectin-9 proteins and their clinical value in esophageal squamous cell carcinoma (ESCC) in Chinese patients. The expression profiles of TIM-3 and galectin-9 in ESCC were determined by the immunohistochemical analysis of the postoperative pathological specimens of 45 patients with ESCC; a χ2 test was used to evaluate the association of TIM-3 and galectin-9 expression with clinicopathological parameters, in addition to univariate and multivariate Cox's proportional hazards model to analyze the prognostic value of the expression of TIM-3 and galectin-9 proteins. The proportion of samples exhibiting a high staining intensity for TIM-3 and galectin-9 were 22.22 and 15.56%, respectively: these samples were termed the TIM-3 high-expression group (HEG) and galectin-9-HEG. There was a negative correlation between the expression of TIM-3 and galectin-9 (R=-0.71, P<0.001). The results of Kaplan-Meier survival analysis led to the conclusion that, compared with the TIM-3 low expression group (LEG), patients in the TIM-3-HEG exhibited a poorer overall survival rate (χ2=6.049, P=0.0139). By contrast, patients in the galectin-9-HEG exhibited a significantly better overall survival rate than those in the galectin-9-LEG (χ2=4.915, P=0.0266). However, the levels of TIM-3 and galectin-9 expression were not identified as independent indicators for the prognosis of patients with ESCC. As high TIM-3 and low galectin-9 expression levels were associated with a poor prognosis for patients with ESCC in the present study, these proteins may be potential prognostic indicators for ESCC.
Collapse
Affiliation(s)
- Nan Hou
- Department of Biological Immunotherapy, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Jie Ma
- Department of Molecular Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Wei Li
- Department of Biological Immunotherapy, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Lingdi Zhao
- Department of Biological Immunotherapy, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Quanli Gao
- Department of Biological Immunotherapy, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Ling Mai
- Institute of Cancer Research, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, Henan 450003, P.R. China
| |
Collapse
|