1
|
Liu X, Zhang J, Ju S, Liu L, Sun Y, Guo L, Zhen Q, Han S, Lu W, Zhang Y. ECT2 promotes malignant phenotypes through the activation of the AKT/mTOR pathway and cisplatin resistance in cervical cancer. Cancer Gene Ther 2023; 30:62-73. [PMID: 36056253 DOI: 10.1038/s41417-022-00525-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 08/09/2022] [Accepted: 08/19/2022] [Indexed: 01/19/2023]
Abstract
Epithelial cell transforming sequence 2 (ECT2) is expressed at high levels in various malignancies and contributes to malignant phenotypes in cancers. However, ECT2 is still not fully understood regarding its function and carcinogenic mechanism in cervical cancer. This research indicated that ECT2 expression was elevated in cervical cancer based on bioinformatics analysis and clinical specimens. Experiments in vitro and in vivo confirmed that ECT2 knockdown could suppress the proliferation and metastasis of cervical carcinoma cells. In addition, we found that silencing ECT2 could enhance the sensitivity to cisplatin and promote cell apoptosis. Mechanistically, we observed that ECT2 knockdown could inhibit the AKT/mTOR pathway and activate apoptosis, while ECT2 overexpression induced the opposite effect. The relationship between ECT2 and AKT was further confirmed by immunoprecipitation and rescue experiments. We found that the ECT2 and AKT could interact to form a complex, and knockdown AKT could offset all of the effects induced by ECT2. Our study emphasized the key point of ECT2 in the reversal of cisplatin resistance, and ECT2 could become a potential therapeutic target in cervical cancer.
Collapse
Affiliation(s)
- Xiaoli Liu
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Junhua Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Shuang Ju
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Lu Liu
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Yu Sun
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Lingyu Guo
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Qianwei Zhen
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Sai Han
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Wei Lu
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China.,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China
| | - Youzhong Zhang
- Department of Obstetrics and Gynecology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China. .,Key Laboratory of Gynecologic Oncology of Shandong Province, Jinan, China. .,Shandong Engineering Laboratory for Urogynecology, Qilu Hospital of Shandong University, Jinan, China.
| |
Collapse
|
2
|
Increased expression of ECT2 predicts the poor prognosis of breast cancer patients. Exp Hematol Oncol 2022; 11:107. [PMID: 36572949 PMCID: PMC9791744 DOI: 10.1186/s40164-022-00361-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/19/2022] [Indexed: 12/27/2022] Open
Abstract
Breast cancer is the most common malignancy and the second leading cause of cancer-related death in women. Recent studies have indicated that aberrant activation of Rho GTPases relates to the malignant properties of breast cancer cells. As the guanine nucleotide exchange factor of Rho GTPases, the role of ECT2 (epithelial cell transforming 2) in breast cancer is still unclear. Tissue microarrays and multiple public databases were utilized to investigate the relationship between ECT2 level and clinical-pathological features of breast cancer patients. Kaplan Meier-plotter online tool and tissue microarray with survival information were used to investigate the predictive value for breast cancer. Here, we found increased ECT2 level was highly associated with advanced TNM stage, poor differentiation, and loss of hormone receptors of breast cancer. Gene expression profile showed that ECT2 level was closely correlated to cell-proliferation-associated pathways. Integration analysis using public databases and tissue microarray indicated that high ECT2 was an adverse prognostic factor for breast cancer patients. We believe the ECT2 level might be a valuable complement for commercially available predictors such as the 21 genes test. Furthermore, ECT2 would be a novel target for drug development for breast cancer.
Collapse
|
3
|
Peng S, Wang J, Chen Y, Hei N, Zhao J, Wu X, Cui Z. High expression of ECT2 and E2F1 is associated with worse clinical manifestations and prognosis in patients with oral squamous cell carcinoma. EUR J INFLAMM 2022. [DOI: 10.1177/1721727x221136794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
To detect the expression, prognostic value, and possible effects of epithelial cell transforming sequence 2 (ECT2) and E2F1 in patients with oral squamous cell carcinoma (OSCC). Seventy subjects hospitalized for OSCC surgical treatment in the Fourth Hospital of Hebei Medical University were selected for this study. Expression levels of ECT2 and E2F1 were detected by qRT-PCR, Western blot, and immunohistochemistry. The Kaplan-Meier method and Cox risk proportional regression analysis were used to analyze the relationship between different expression levels of ECT2 or E2F1 and the survival of patients with OSCC in 3 years. Relative expression levels of E2F1 mRNA (1.31 ± 0.15) and ECT2 mRNA (3.95 ± 0.72) in OSCC tissues, compared to adjacent normal tissues (0.87 ± 0.11, 1.03 ± 0.23, all p < 0.05). ECT2 was highly expressed in 42 (60.00%) OSCC samples and E2F1 was highly expressed in 45 (64.29%) samples. The expression of ECT2 and E2F1 was related to clinical stage, lymphatic metastasis, tumor differentiation grade, and tumor diameter in OSCC patients. The higher the expression of ECT2 and E2F1, the lower the 3-year survival rate of patients. ECT2 high expression (HR=2.407, p < 0.001), E2F1 high expression of E2F1 (HR = 2.159, p = 0.013), Clinical stages (III+IV) (HR = 1.362, p = 0.012), medium and low differentiation (HR = 1.522, p = 0.015), lymphatic metastasis (HR = 1.951, p < 0.001), and tumor diameter (≥3 cm) (HR = 1.824, p = 0.002) could be independent factors for 3-year survival of patients with OSCC. The expression of ECT2 and E2F1 in OSCC was significantly up-regulated, which was closely related to clinical stage, lymph node metastasis, tumor size, and 3-year survival of OSCC patients.
Collapse
Affiliation(s)
- Shixiong Peng
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jinhang Wang
- Department of Stomatology, Shijiazhuang Second Hospital, Shijiazhuang, China
| | - Yanping Chen
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Naiheng Hei
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jianguang Zhao
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xinjuan Wu
- Department of Stomatology, Shijiazhuang Second Hospital, Shijiazhuang, China
| | - Zifeng Cui
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| |
Collapse
|
4
|
Liu D, Zhou R, Zhou A. Identification of key biomarkers and functional pathways in osteosarcomas with lung metastasis: Evidence from bioinformatics analysis. Medicine (Baltimore) 2021; 100:e24471. [PMID: 33578541 PMCID: PMC7886415 DOI: 10.1097/md.0000000000024471] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/23/2020] [Accepted: 01/04/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND In osteosarcoma, the lung is the most common metastatic organ. Intensive work has been made to illuminate the pathogeny, but the specific metastatic mechanism remains unclear. Thus, we conducted the study to seek to find the key genes and critical functional pathways associated with progression and treatment in lung metastasis originating from osteosarcoma. METHODS Two independent datasets (GSE14359 and GSE85537) were screened out from the Gene Expression Omnibus (GEO) database and the overlapping differentially expressed genes (DEGs) were identified using GEO2R online platform. Subsequently, the Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways enrichment analysis of DEGs were conducted using DAVID. Meanwhile, the protein-protein interaction (PPI) network constructed by STRING was visualized using Cytoscape. Afterwards, the key module and hub genes were extracted from the PPI network using the MCODE and cytoHubba plugin. Moreover, the raw data obtained from GSE73166 and GSE21257 were applied to verify the expression differences and conduct the survival analyses of hub genes, respectively. Finally, the interaction network of miRNAs and hub genes constructed by ENCORI was visualized using Cytoscape. RESULTS A total of 364 DEGs were identified, comprising 96 downregulated genes and 268 upregulated genes, which were mainly involved in cancer-associated pathways, adherens junction, ECM-receptor interaction, focal adhesion, MAPK signaling pathway. Subsequently, 10 hub genes were obtained and survival analysis demonstrated SKP2 and ASPM were closely related to poor prognosis of patients with osteosarcoma. Finally, hsa-miR-340-5p, has-miR-495-3p, and hsa-miR-96-5p were found to be most closely associated with these hub genes according to the interaction network of miRNAs and hub genes. CONCLUSION The key genes and functional pathways identified in the study may contribute to understanding the molecular mechanisms involved in the carcinogenesis and progression of lung metastasis originating from osteosarcoma, and provide potential diagnostic and therapeutic targets.
Collapse
Affiliation(s)
| | - Rui Zhou
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | | |
Collapse
|
5
|
Kosibaty Z, Murata Y, Minami Y, Noguchi M, Sakamoto N. ECT2 promotes lung adenocarcinoma progression through extracellular matrix dynamics and focal adhesion signaling. Cancer Sci 2020; 112:703-714. [PMID: 33215807 PMCID: PMC7893990 DOI: 10.1111/cas.14743] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/17/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Lung adenocarcinoma (LAC) is the most prevalent form of lung cancer. Epithelial cell transforming sequence 2 (ECT2) is a guanine nucleotide exchange factor that has been implicated in oncogenic and malignant phenotypes of LAC. Here, we identified an oncogenic role of ECT2 in the extracellular matrix (ECM) dynamics of LAC cells. We showed that suppression of ECT2 decreased adhesion and spreading of LAC cells on ECM components. Morphologically, ECT2-depleted cells exhibited a rounded shape and cytoskeletal changes. Examination of transcriptional changes by RNA sequencing revealed a total of 1569 and 828 genes whose expressions were altered (absolute fold change and a difference of >2 fold) in response to suppression of ECT2 in two LAC cells (Calu-3 and NCI-H2342), respectively, along with 298 genes that were common to both cell lines. Functional enrichment analysis of common genes demonstrated a significant enrichment of focal adhesions. In accord with this observation, we found that ECT2 suppression decreased the expression level of proteins involved in focal adhesion signaling including focal adhesion kinase (FAK), Crk, integrin β1, paxillin, and p130Cas. FAK knockdown leads to impaired cell proliferation, adhesion, and spreading of LAC cells. Moreover, in LAC cells, ECT2 binds to and stabilizes FAK and is associated with the formation of the focal adhesions. Our findings provide new insights into the underlying role of ECT2 in cell-ECM dynamics during LAC progression and suggest that ECT2 could be a promising therapeutic avenue for lung cancer.
Collapse
Affiliation(s)
- Zeinab Kosibaty
- Department of Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.,Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Yoshihiko Murata
- Department of Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yuko Minami
- Department of Pathology, National Hospital Organization, Ibaraki Higashi National Hospital, Ibaraki, Japan
| | - Masayuki Noguchi
- Department of Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Noriaki Sakamoto
- Department of Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| |
Collapse
|
6
|
Li B, Lin JP, Li Z, Yin C, Yang JB, Meng YQ. Clinicopathological and prognostic significance of epithelial cell transforming sequence 2 expression in cancers: a systematic review and meta-analysis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:4139-4148. [PMID: 31698961 DOI: 10.1080/21691401.2019.1687503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Numerous studies have investigated the prognostic significance of ECT2 (epithelial cell transforming sequence 2) expression in patients with cancer. Nevertheless, conflicting results have been obtained. We thus performed a meta-analysis to systematically assess the prognostic significance of ECT2 in cancer. Electronic databases (PubMed and EMBASE) were searched for eligible studies. Hazard ratios (HR) and odds ratios (OR) with 95% confidence intervals (CIs) were used to estimate effect sizes. A total of 5,305 patients from 19 articles and 21 studies were included. The pooled results revealed that high ECT2 expression was correlated with advanced TNM stage (OR = 2.17; 95% CI: 1.42-3.32), positive lymph node metastasis (OR = 2.98; 95% CI: 2.28-3.89), distant metastasis (OR = 2.25; 95% CI: 1.03-4.92), and poor tumour differentiation (OR = 2.25; 95% CI: 1.03-4.92). More importantly, high ECT2 expression was significantly associated with poor overall survival (HR = 2.26; 95% CI, 1.84-2.78) and recurrence-free survival (HR = 1.52; 95% CI, 1.24-1.86). Our results suggested that ECT2 is a promising prognostic indicator and therapeutic target for cancer.
Collapse
Affiliation(s)
- Bin Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, China
| | - Jun-Ping Lin
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, China
| | - Zheng Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, China
| | - Ci Yin
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, China
| | - Jian-Bao Yang
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, China
| | - Yu-Qi Meng
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, China
| |
Collapse
|
7
|
Li P, Shi X, Xu Y, Zhong B, Lu Y, Sun Y. Interleukin-22 Promotes Osteosarcoma Cell Proliferation and Invasion via STAT3 Activation. Med Sci Monit 2018; 24:7802-7808. [PMID: 30381753 PMCID: PMC6225732 DOI: 10.12659/msm.910962] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/01/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Interleukin-22 (IL-22) is one of the cytokines secreted by T-helper 17 (Th17) cells. It belongs to the IL-10 cytokine family and influences a variety of immune reactions. Studies have indicated that IL-22 can promote cancer progression and metastases. However, the function of IL-22 in osteosarcoma (OS) remains unclear. MATERIAL AND METHODS In this study, the expression of IL-22 in the OS cell line was detected by qRT-PCR. The role of IL-22 in proliferation and invasion in OS cells was tested by MTT and Transwell assays. The protein expression of STAT3, phospho-STAT3, AKT, and phospho-AKT was detected by Western blot analysis. RESULTS The results showed that IL-22 was upregulated in OS cells. IL-22 dose-independently promoted OS cells proliferation and invasion, which could be reversed by IL-22 antibody or STAT3 siRNA. Furthermore, IL-22 exposure of OS cells resulted in dose-independently increased levels of phosphorylated STAT3 protein kinases. Interestingly, IL-22 did not influence the expression of phosphorylated AKT. CONCLUSIONS These results suggest that IL-22 promotes OS cells proliferation and invasion and its effect is mediated by activation of the STAT3 pathway. These findings demonstrate that IL-22 may serve as a promising molecular biomarker for diagnosis and therapy for OS patients.
Collapse
Affiliation(s)
- Panpan Li
- Department of Radiology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| | - Xin Shi
- Department of Traumatology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| | - Yonghui Xu
- Department of Radiology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| | - Binggang Zhong
- Department of Orthopedics, The First People’s Hospital of Zhao Tong, Zhaotong, Yunnan, P.R. China
| | - Yu Lu
- Department of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| | - Yong Sun
- Department of Radiology, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, P.R. China
| |
Collapse
|
8
|
Bai X, Yi M, Xia X, Yu S, Zheng X, Wu K. Progression and prognostic value of ECT2 in non-small-cell lung cancer and its correlation with PCNA. Cancer Manag Res 2018; 10:4039-4050. [PMID: 30319288 PMCID: PMC6167987 DOI: 10.2147/cmar.s170033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose Epithelial cell transforming sequence 2 (ECT2) is a guanine nucleotide exchange factor, which is involved in cell division regulation and cell cycle modulation. Recent evidence indicates that ECT2 is overexpressed in many human cancers. However, the exact prognostic value of ECT2 in lung cancer has not been elucidated. Patients and methods In the current study, we performed correlation and prognosis analyses using public databases and conducted immunohistochemical staining in tissue microarrays, using samples from 204 lung cancer patients with survival data. Results We found that the expression of ECT2 was markedly increased in lung cancer tissues compared with normal tissues. Moreover, we demonstrated that the expression of ECT2 was related to tumor cell differentiation degree, TNM stage, lymph node metastasis, and prognosis in non-small-cell lung cancer (NSCLC). A correlation analysis indicated that ECT2 levels were significantly correlated with proliferating cell nuclear antigen (PCNA) levels in NSCLC. Furthermore, Kaplan–Meier analyses revealed that high ECT2 expression was associated with unfavorable overall survival (OS) and progression-free survival (PFS) in NSCLC patients. Conclusion Taken together, these results indicate that the overexpression of ECT2 contributes to tumor invasion and progression, suggesting that ECT2 is a potential prognostic marker for NSCLC patients.
Collapse
Affiliation(s)
- Xianguang Bai
- Medical School of Pingdingshan University, Pingdingshan, Henan, People's Republic of China,
| | - Ming Yi
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China,
| | - Xichao Xia
- Medical School of Pingdingshan University, Pingdingshan, Henan, People's Republic of China,
| | - Shengnan Yu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China,
| | - Xinhua Zheng
- Medical School of Pingdingshan University, Pingdingshan, Henan, People's Republic of China,
| | - Kongming Wu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China,
| |
Collapse
|
9
|
Liu Z, Zhang G, Zhao C, Li J. Clinical Significance of G Protein-Coupled Receptor 110 (GPR110) as a Novel Prognostic Biomarker in Osteosarcoma. Med Sci Monit 2018; 24:5216-5224. [PMID: 30052620 PMCID: PMC6076427 DOI: 10.12659/msm.909555] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND G protein-coupled receptor 110 (GPR110) belongs to the subfamily of the adhesion G protein-coupled receptors (GPCRs). The potential role of GPR110 has been correlated with cancer cell invasion in some tumors such as glioma. However, its expression and role in human osteosarcoma has not been identified. This study aimed to examine the expression level of GPR110 and determine whether the expression of GPR110 was correlated with aggressive clinicopathological characteristics and prognosis of osteosarcoma. MATERIAL AND METHODS This retrospective study included 94 osteosarcoma patients. Immunohistochemistry staining and quantitative real-time polymerase chain reaction were performed to detect the expression level of GPR110 in osteosarcoma specimens. We then determined the correlation of the GPR110 expression with the clinicopathological characteristics and prognosis by univariate or multivariate analysis. Patient outcomes were evaluated using the Kaplan-Meier log-rank test and prognostic factors were detected by multivariate analysis. The function of GPR110 on cell proliferation, migration, and invasion were examined in this in vitro study. RESULTS Overexpression of GPR110 was correlated with the advanced stage of osteosarcoma. Patients with high expression level of GPR110 had significantly poorer 5-year overall survival; the multivariate analysis found that GPR110 expression level can act as an independent prognosis factor. Knockdown of GPR110 can decrease the proliferation, migration, and invasion capacity of human osteosarcoma cell lines. CONCLUSIONS Our studies suggest a role of GPR110 in tumor progression and as a potential novel prognostic biomarker in osteosarcoma.
Collapse
Affiliation(s)
- Zhiqiang Liu
- Department of Rehabilitation, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Guorong Zhang
- Department of Rehabilitation, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Changlei Zhao
- Department of Rehabilitation, Yidu Central Hospital of Weifang, Weifang, Shandong, China (mainland)
| | - Juming Li
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
| |
Collapse
|
10
|
Qu W, Li D, Wang Y, Wu Q, Hao D. Activation of Sonic Hedgehog Signaling Is Associated with Human Osteosarcoma Cells Radioresistance Characterized by Increased Proliferation, Migration, and Invasion. Med Sci Monit 2018; 24:3764-3771. [PMID: 29864766 PMCID: PMC6016436 DOI: 10.12659/msm.908278] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background Radioresistance restricts the application of radiotherapy in human osteosarcoma (OS). This study investigated the molecular mechanism of radioresistance in OS, which may provide clues to finding ideal targets for genetic therapy. Materila/Methods The human OS cell line MG63 was employed as parent cells. After repeat low-dose X-ray irradiation of MG63, the radioresistant OS cell line MG63R was produced. Colony formation assay was used to assess the radioresistance. Cell viability was evaluated by CCK-8 assay. Flow cytometry was used to detect cell apoptosis, and wound healing assay was used to evaluate invasive capacity. The nuclear translocation was evaluated by fluorescent immunohistochemistry. Protein expression levels were assessed by Western blotting. Specific siRNA against Shh was used to silence Shh. Results More survival colony formation, elevated cell viability, less cell apoptosis, and increased wound closure were found in MG63R than in MG63 cells exposed to irradiation. The nuclear translocation of Gli, expression levels of Shh, Smo, Ptch1, Bcl2, active MMP2, and active MMP9 were increased in MG63R cells compared with MG63 cells. Transfection of Shh-siRNA suppressed expression levels of Shh, Smo, Ptch1, Bcl2, active MMP2, and active MMP9, as well as the nuclear translocation of Gli in MG63R cells. The cell viability, survival colony formation, and wound closure were impaired, whereas cell apoptosis was increased, in siRNA-transfected MG63R cells than in control MG63R cells exposed to irradiation. Conclusions Activation of Shh signaling was involved in radioresistance of OS cells. Blocking this signaling can impair the radioresistance capacity of OS cells.
Collapse
Affiliation(s)
- Wei Qu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland).,Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Dichen Li
- Department of Orthopaedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland).,State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Yufei Wang
- Department of Bone Microsurgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Qining Wu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| | - Dingjun Hao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China (mainland)
| |
Collapse
|
11
|
Liu P, Yang P, Zhang Z, Liu M, Hu S. Ezrin/NF-κB Pathway Regulates EGF-induced Epithelial-Mesenchymal Transition (EMT), Metastasis, and Progression of Osteosarcoma. Med Sci Monit 2018; 24:2098-2108. [PMID: 29628496 PMCID: PMC5907830 DOI: 10.12659/msm.906945] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background Epithelial-mesenchymal transition (EMT) is responsible for metastasis of cancers, and NF-κB can promote tumor progression. Ezrin is an important molecule participating in EMT. However, whether Ezrin mediates NF-κB in EGF-induced osteosarcoma is unknown. Material/Methods Ezrin phosphorylation, NF-κB activation, and EGF-induced EMT were studied in MG63 and U20S cells with NF-κB inhibition, silencing, or over-expressing Ezrin. Cell morphology, proliferation, migration, and motility were analyzed. An osteosarcoma model was established in mice by injecting MG63 and U20S and reducing Ezrin. Results With EGF induction in vitro, Ezrin Tyr353 and Thr567 were phosphorylated, and EMT, proliferation, migration, and motility of osteosarcoma cells were promoted. Silencing Ezrin suppressed and over-expressing Ezrin promoted the nuclear translocation of p65 and phosphorylated IκBα (p-IκBα) in EGF-induced osteosarcoma cells. NF-κB inhibitor blocked EGF-induced EMT in both cell types, as well as reserving cell morphology and suppressing proliferation, migration, and motility. In vivo, reducing Ezrin significantly suppressed metastasis of osteosarcoma xenografts, increased liver and lung weights, and activated NF-κB, which were both induced by EGF. Conclusions Ezrin/NF-κB regulated EGF-induced EMT, as well as progression and metastasis of osteosarcoma in vivo and in vitro. Ezrin/NF-κB may be a new therapeutic target to prevent osteosarcoma from deterioration.
Collapse
Affiliation(s)
- Peng Liu
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (mainland)
| | - Peng Yang
- Department of Orthopedics, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China (mainland)
| | - Zhang Zhang
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (mainland)
| | - Mingfa Liu
- Department of Orthopedics, Hohhot First Hospital, Hohhot, Inner Mongolia, China (mainland)
| | - Sanbao Hu
- Department of Orthopedics, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (mainland)
| |
Collapse
|