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Jian W, Zhang L. POLE2 silencing inhibits the progression of colorectal carcinoma cells via wnt signaling axis. Cancer Biol Ther 2024; 25:2392339. [PMID: 39155507 PMCID: PMC11340749 DOI: 10.1080/15384047.2024.2392339] [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: 12/27/2023] [Revised: 08/06/2024] [Accepted: 08/11/2024] [Indexed: 08/20/2024] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignant carcinoma worldwide. DNA polymerase epsilon 2, accessory subunit (POLE2) participates in DNA replication, repair, and cell cycle control, but its association with CRC development remains unclear. In the present study, the differentially expressed genes (DEGs) in CRC were screened from bioinformatics analysis based on GEO database. RT-qPCR was used to assess mRNA expression. CCK-8 and colony formation assays were applied for the evaluation of cell proliferation. Wound healing and transwell assays were used to detect cell migration and invasion. Protein levels were determined by Western blotting assay. We found that POLE2 was highly expressed in CRC tissues and cell lines. Inhibition of POLE2 suppressed the proliferation, migration and invasion of CRC cells. Mechanistically, Wnt/β-catenin signaling pathway was inactivated by inhibition of POLE2. Activation of Wnt/β-catenin pathway can reverse the function of POLE2 knockdown on CRC cells. In vivo studies demonstrated that POLE2 silencing could notably inhibit the growth of tumors, which was consistent with the results in vitro. In conclusion, we found POLE2 as a novel oncogene in CRC, providing a potential therapeutic or diagnostic target in CRC.
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Affiliation(s)
- Weihua Jian
- Department of General Surgery, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, China
- Department of General Surgery, Guangzhou First People’s Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Lei Zhang
- Department of Second General Surgery, Guangdong Second Provincial General Hospital, Guangzhou, China
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2
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Bian Z, Benjamin MM, Bialousow L, Tian Y, Hobbs GA, Karan D, Choo YM, Hamann MT, Wang X. Targeting sine oculis homeoprotein 1 (SIX1): A review of oncogenic roles and potential natural product therapeutics. Heliyon 2024; 10:e33204. [PMID: 39022099 PMCID: PMC11252760 DOI: 10.1016/j.heliyon.2024.e33204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/16/2024] [Accepted: 06/17/2024] [Indexed: 07/20/2024] Open
Abstract
Sine oculis homeoprotein 1 (SIX1), a prominent representative of the homeodomain transcription factors within the SIX family, has attracted significant interest owing to its role in tumorigenesis, cancer progression, and prognostic assessments. Initially recognized for its pivotal role in embryonic development, SIX1 has emerged as a resurgent factor across a diverse set of mammalian cancers. Over the past two decades, numerous investigations have emphasized SIX1's dual significance as a developmental regulator and central player in oncogenic processes. A mounting body of evidence links SIX1 to the initiation of diverse cancers, encompassing enhanced cellular metabolism and advancement. This review provides an overview of the multifaceted roles of SIX1 in both normal development and oncogenic processes, emphasizing its importance as a possible therapeutic target and prognostic marker. Additionally, this review discusses the natural product agents that inhibit various pro-oncogenic mechanisms associated with SIX1.
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Affiliation(s)
- Zhiwei Bian
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Menny M. Benjamin
- Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Lucas Bialousow
- Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Yintai Tian
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - G. Aaron Hobbs
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC, USA
| | - Dev Karan
- Department of Pathology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Yeun-Mun Choo
- Chemistry Department, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Mark T. Hamann
- Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Xiaojuan Wang
- School of Pharmacy, Lanzhou University, Lanzhou, 730000, Gansu, China
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Jiang D, Zhang H, Yin B, He M, Lu X, He C. The Prognostic Hub Gene POLE2 Promotes BLCA Cell Growth via the PI3K/AKT Signaling Pathway. Comb Chem High Throughput Screen 2024; 27:1984-1998. [PMID: 38963027 DOI: 10.2174/0113862073273633231113060429] [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: 07/23/2023] [Revised: 09/15/2023] [Accepted: 09/21/2023] [Indexed: 07/05/2024]
Abstract
BACKGROUND BLCA is a common urothelial malignancy characterized by a high recurrence rate. Despite its prevalence, the molecular mechanisms underlying its development remain unclear. AIMS This study aimed to explore new prognostic biomarkers and investigate the underlying mechanism of bladder cancer (BLCA). OBJECTIVE The objective of this study is to identify key prognostic biomarkers for BLCA and to elucidate their roles in the disease. METHODS We first collected the overlapping DEGs from GSE42089 and TCGA-BLCA samples for the subsequent weighted gene co-expression network analysis (WGCNA) to find a key module. Then, key module genes were analyzed by the MCODE algorithm, prognostic risk model, expression and immunohistochemical staining to identify the prognostic hub gene. Finally, the hub gene was subjected to clinical feature analysis, as well as cellular function assays. RESULTS In WGCNA on 1037 overlapping genes, the blue module was the key module. After a series of bioinformatics analyses, POLE2 was identified as a prognostic hub gene in BLCA from potential genes (TROAP, POLE2, ANLN, and E2F8). POLE2 level was increased in BLCA and related to different clinical features of BLCA patients. Cellular assays showed that si-POLE2 inhibited BLCA proliferation, and si-POLE2+ 740Y-P in BLCA cells up-regulated the PI3K and AKT protein levels. CONCLUSION In conclusion, POLE2 was identified to be a promising prognostic biomarker as an oncogene in BLCA. It was also found that POLE2 exerts a promoting function by the PI3K/AKT signaling pathway in BLCA.
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Affiliation(s)
- Dongzhen Jiang
- Department of Urology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Huawei Zhang
- Department of Urology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Bingde Yin
- Department of Urology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Minke He
- Department of Urology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Xuwei Lu
- Department of Urology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
| | - Chang He
- Department of Urology, Minhang Hospital, Fudan University, 170 Xin-Song Road, Shanghai, 201199, China
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Xu S, Zhong F, jiang J, Yao F, Li M, Tang M, Cheng Y, Yang Y, Wen W, Zhang X, Huang B, Wang X. High Expression of SRSF10 Promotes Colorectal Cancer Progression by Aberrant Alternative Splicing of RFC5. Technol Cancer Res Treat 2024; 23:15330338241271906. [PMID: 39110418 PMCID: PMC11307364 DOI: 10.1177/15330338241271906] [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: 03/10/2024] [Revised: 05/21/2024] [Accepted: 06/03/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND Colorectal cancer (CRC) remains a global health concern with persistently high incidence and mortality rates. However, the specific pathogenesis of CRC remains poorly understood. This study aims to investigate the role and pathogenesis of serine and arginine rich splicing factor 10 (SRSF10) in colorectal cancer. METHODS Bioinformatics analysis was employed to predict SRSF10 gene expression in CRC patients. Functional experiments involving SRSF10 knockdown and overexpression were conducted using CCK8, transwell, scratch assay, and flow cytometry. Additionally, the PRIdictor website was utilized to predict the SRSF10 interaction site with RFC5. The identification of different transcripts of SRSF10-acting RFC5 pre-mRNA was achieved through agarose gel electrophoresis. RESULT The knockdown of SRSF10 inhibited the proliferation and migration ability of CRC cells, while promoting apoptosis and altering the DNA replication of CRC cells. Conversely, when SRSF10 was highly expressed, it enhanced the proliferation and migration ability of CRC cells and caused changes in the cell cycle of colorectal cancer cells. This study revealed a change in the replicating factor C subunit 5 (RFC5) gene in colorectal cancer cells following SRSF10 knockdown. Furthermore, it was confirmed that SRSF10 increased RFC5 exon2-AS1(S) transcription variants, thereby promoting the development of colorectal cancer through AS1 exclusion to exon 2 of RFC5. CONCLUSION In summary, this study demonstrates that SRSF10 promotes the progression of colorectal cancer by generating an aberrantly spliced exclusion isoform of AS1 within RFC5 exon 2. These findings suggest that SRSF10 could serve as a crucial target for the clinical diagnosis and treatment of CRC.
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Affiliation(s)
- Shuai Xu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fangmin Zhong
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Junyao jiang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fangyi Yao
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Meiyong Li
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Mengxin Tang
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Ying Cheng
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yulin Yang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
- School of Public Health, Nanchang University, No. 461 BaYi Boulevard, Nanchang 330006, Jiangxi, China
| | - Wen Wen
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
- School of Public Health, Nanchang University, No. 461 BaYi Boulevard, Nanchang 330006, Jiangxi, China
| | - Xueru Zhang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
- School of Public Health, Nanchang University, No. 461 BaYi Boulevard, Nanchang 330006, Jiangxi, China
| | - Bo Huang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
- School of Public Health, Nanchang University, No. 461 BaYi Boulevard, Nanchang 330006, Jiangxi, China
| | - Xiaozhong Wang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, China
- The Second Affiliated Hospital of Nanchang University, Nanchang, China
- School of Public Health, Nanchang University, No. 461 BaYi Boulevard, Nanchang 330006, Jiangxi, China
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Sun MY, Wang L, Shen ZY. POLE2 Regulates Apoptosis of Oral Squamous Cell Carcinoma Cells through the PI3K/AKT Signaling Pathway. Curr Med Sci 2023; 43:1162-1172. [PMID: 38079056 DOI: 10.1007/s11596-023-2813-7] [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: 08/15/2022] [Accepted: 08/22/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE Oral squamous cell carcinoma (OSCC) is the most common malignant tumor of the head and neck, but its occurrence and progression mechanisms remain unclear. In addition-there is a lack of effective targeting drugs. The second major subunit of DNA polymerase (POLE2) catalyzes the prolongation of new strand replication and modifies exonuclease domain activity. Our previous study found that POLE2 was associated with OSCC progression, but the mechanism remains unclear. METHODS The expression of POLE2 in OSCC tissues was detected using immunological assays. Mann-Whitney U analysis was used to investigate the relationship between POLE2 gene expression and tumor classification and prognosis of OSCC. POLE2 expression was inhibited in OSCC cells, and the effects of gene and protein expression were detected using RT-PCR and Western blotting. The POLE2 knockout model was constructed by transfecting a lentiviral vector. Cell proliferation, apoptosis, and migration were detected using various assays including colony formation, MTT, flow cytometry, wound healing assay, Transwell assay, and the Human Apoptosis Antibody Array. The animal model of OSCC was established by subcutaneous injection of transfected HN6 into 4-week-old female nude mice. After 30 days, tumors were removed under anesthesia and tumor weight and dimension were recorded. Tumor cell proliferation was analyzed using Ki67 staining. RESULTS POLE2 gene levels were significantly higher in the OSCC tissues than in the normal tissues. In addition, POLE2 gene levels were statistically correlated with tumor classification and prognosis. Silencing POLE2 inhibited the proliferation of oral cancer cells and promoted apoptosis in vitro. Animal experiments also supported a positive correlation between POLE2 and OSCC tumor formation. We further demonstrated that POLE2 could upregulate the expression of apoptosis-related proteins such as caspase-3, CD40, CD40L, DR6, Fas, IGFBP-6, p21, and SMAC. In addition, POLE2 regulated OSCC development by inhibiting the PI3K/AKT signaling pathway. CONCLUSION POLE2 is closely related to the progression of OSCC. Thus, POLE2 may be a potential target for OSCC treatment.
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Affiliation(s)
- Ming-Yu Sun
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Lin Wang
- Department of Oral and Maxillofacial Surgery, the Affiliated Hospital of Qingdao University, Qingdao, 266000, China
- Key Laboratory of Oral Clinical Medicine, Qingdao, 266000, China
| | - Zheng-Yu Shen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
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Guo Z, Guo L. YAP/TEAD-induced PRIM1 contributes to the progression and poor prognosis of gastric carcinoma. Transl Oncol 2023; 38:101791. [PMID: 37741096 PMCID: PMC10541473 DOI: 10.1016/j.tranon.2023.101791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 09/25/2023] Open
Abstract
Gastric carcinoma has a poor prognosis and low survival rate. PRIM1 is closely associated with the origin of DNA replication and serves as a carcinogenic factor in multiple tumors. This study aimed to explore the functions of PRIM1 in the progression of gastric carcinoma. The luciferase reporter assay examined the regulatory effect of YAP1/TEAD4 on PRIM1. A xenograft tumor mouse model was constructed to observe cancer cell proliferation in vivo. The upregulation of PRIM1 was found in gastric carcinoma cells and tissues, and it was associated with poor prognosis. Silencing PRIM1 inhibited cell proliferation, arrested the cell cycle, and upregulated Cdc25, Cyclin B, and Cdc2 expression. In addition, apoptosis was increased upon PRIM1 knockdown, accompanied by increased protein levels of cleaved caspase-3 and caspase-8. In vivo, knockdown of PRIM1 suppressed the growth of xenograft tumors formed by gastric carcinoma cells. Moreover, PRIM1 silencing elevated the chemosensitivity of gastric carcinoma cells. By investigating molecular events downstream of the Hippo signaling pathway, we found that PRIM1 was a target gene of the YAP1/TEAD4 transcriptional regulatory complex. PRIM1 represents a novel target for gastric carcinoma therapeutic approaches.
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Affiliation(s)
- Zijun Guo
- Department of Operating Room, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Lin Guo
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China.
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Avs KR, Pandi C, Kannan B, Pandi A, Jayaseelan VP, Arumugam P. RFC3 serves as a novel prognostic biomarker and target for head and neck squamous cell carcinoma. Clin Oral Investig 2023; 27:6961-6969. [PMID: 37861747 DOI: 10.1007/s00784-023-05316-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/08/2023] [Indexed: 10/21/2023]
Abstract
OBJECTIVE Head and neck squamous cell carcinoma (HNSCC) is a prevalent cancer that originates from the squamous cells. The role of the replication factor C subunit 3 (RFC3) in HNSCC progression remains elusive. The aim of this study was to uncover RFC3 significance in HNSCC. METHODS The Cancer Genome Atlas (TCGA-HNSCC) dataset was initially used to assess RFC3 expression and its association with HNSCC clinical features. Subsequently, quantitative reverse transcription PCR (RT-qPCR) confirmed RFC3 mRNA expression in oral squamous cell carcinoma (OSCC), a primary HNSCC type. Survival rates were evaluated using the Kaplan-Meier plot, while the Tumor Immune Estimation Resource (TIMER) database probed RFC3-immune cell interaction. Additionally, in silico tools were used to examine the RFC3 protein network and engagement in HNSCC pathways. RESULTS RFC3 expression is significantly upregulated in HNSCC, including OSCC. Upregulated RFC3 expression was significantly correlated with the clinicopathological features of HNSCC, including tumor stage, grade, metastasis, and patient survival. RFC3 is also associated with immune cell infiltration. Functional analysis has highlighted its involvement in DNA replication, mismatch repair, and cell cycle pathways. Interestingly, RFC3 high expression is linked to well-known oncogenic signaling pathways, such as MYC/MYCN, HIPPO, and mTOR. CONCLUSIONS In conclusion, RFC3 can be considered a novel prognostic biomarker for HNSCC, and further studies on its functional mechanisms may help to use RFC3 as a therapeutic target for HNSCC. CLINICAL RELEVANCE The clinical relevance of this study lies in identifying RFC3 as a novel biomarker and prognostic indicator for HNSCC, offering insights that could impact future clinical approaches.
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Affiliation(s)
- Keerthana Reddy Avs
- Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Chandra Pandi
- Centre for Cellular and Molecular Research, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, 60007, India
| | - Balachander Kannan
- Centre for Cellular and Molecular Research, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, 60007, India
| | - Anitha Pandi
- Centre for Cellular and Molecular Research, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, 60007, India
| | - Vijayashree Priyadharsini Jayaseelan
- Centre for Cellular and Molecular Research, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, 60007, India
| | - Paramasivam Arumugam
- Centre for Cellular and Molecular Research, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, 60007, India.
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Ge S, Wang K, Meng Y, He Z, Yang X, Shang W, Wang L. Silencing POLE2 promotes apoptosis and inhibits proliferation of oral squamous cell carcinomas by inhibiting PI3K/AKT signaling pathway. Med Oncol 2023; 40:304. [PMID: 37733085 DOI: 10.1007/s12032-023-02158-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/12/2023] [Indexed: 09/22/2023]
Abstract
Oral squamous cell carcinoma is the most common malignant tumor in the head and neck at present, but the mechanism of its occurrence and development is still unclear, and there is still a lack of effective targeting drugs. The second major subunit of DNA polymerase (POLE2) has exonuclease activity and can catalyze the replication and modification of new chains. Our previous studies have found that it is associated with OSCC progression, but the mechanism is unclear.The expression of POLE2 in OSCC was detected by immunological method. The expression of POLE2 was inhibited in OSCC cells, and the biological function of the cells was detected by RT-PCR and Western Blot. Cell proliferation, apoptosis and migration were detected by colony formation, MTT, flow cytometry, wound healing and Transwell. The expression level of POLE2 gene in OSCC was significantly higher than that in normal tissues. In addition, the expression level of POLE2 gene was significantly different from the tumor type and prognosis. During the development of oral squamous cell carcinoma, silencing POLE2 inhibits the proliferation of oral cancer cells and promotes apoptosis. The results of animal experiments also support the positive correlation between POLE2 and OSCC progression. We further demonstrated that POLE2 can up-regulate the downregulation of apoptosis-related proteins such as Caspase3, CD40, CD40L, DR6, Fas, IGFBP-6, P21, and SMAC. In addition, POLE2 regulates OSCC progression by inhibiting the PI3K/AKT pathway. POLE2 is closely related to the progression of OSCC, and POLE2 may be a potential target for OSCC treatment.
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Affiliation(s)
- Shengyou Ge
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China
| | - Kexin Wang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China
| | - Yuxiang Meng
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China
| | - Zongxuan He
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China
| | - Xiaochen Yang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China
| | - Wei Shang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China.
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China.
| | - Lin Wang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, 16 Jiangsu Road, Qingdao, 266000, Shandong, China.
- School of Stomatology, Qingdao University, Qingdao, 266000, Shandong, China.
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Si L, Zhang L, Xing S, Fang P, Tian X, Liu X, Xv X. Curcumin as a therapeutic agent in cancer therapy: Focusing on its modulatory effects on circular RNAs. Phytother Res 2023. [PMID: 37200228 DOI: 10.1002/ptr.7863] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/17/2023] [Accepted: 04/17/2023] [Indexed: 05/20/2023]
Abstract
Curcumin, a natural polyphenol compound, has been identified as an effective therapeutic agent against cancer that exerts its anti-tumor activities by up/downregulating signaling mediators and modulating various cellular processes, including angiogenesis, autophagy, apoptosis, metastasis, and epithelial-mesenchymal transition (EMT). Since almost 98% of genomic transcriptional production is noncoding RNAs in humans, there is evidence that curcumin exerts therapeutic effects through the alterations of noncoding RNAs in various types of cancers. Circular RNAs (circRNAs) are formed by the back-splicing of immature mRNAs and have several functions, including functioning as miRNA sponges. It has been shown that curcumin modulated various circRNAs, including circ-HN1, circ-PRKCA, circPLEKHM3, circZNF83, circFNDC3B, circ_KIAA1199, circRUNX1, circ_0078710, and circ_0056618. The modulation of these circRNAs targeted the expression of mRNAs and modified various signaling pathways and hallmarks of cancer. In this article, we reviewed the pharmacokinetics of curcumin, its anti-cancer activities, as well as the biology and structure of circRNAs. Our main focus was on how curcumin exerts anti-cancer functions by modulating circRNAs and their target mRNAs and pathways.
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Affiliation(s)
- Lihui Si
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Lina Zhang
- Research and Development Department, Jilin Zhongke Bio-engineering Joint Stock Co., Ltd, Changchun, People's Republic of China
| | - Shaoliang Xing
- Research and Development Department, Jilin Zhongke Bio-engineering Joint Stock Co., Ltd, Changchun, People's Republic of China
| | - Panke Fang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Xiu Tian
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Xiaoyan Liu
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, People's Republic of China
| | - Xiaohong Xv
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, People's Republic of China
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10
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MCM2 in human cancer: functions, mechanisms, and clinical significance. Mol Med 2022; 28:128. [PMID: 36303105 PMCID: PMC9615236 DOI: 10.1186/s10020-022-00555-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 10/10/2022] [Indexed: 11/18/2022] Open
Abstract
Background Aberrant DNA replication is the main source of genomic instability that leads to tumorigenesis and progression. MCM2, a core subunit of eukaryotic helicase, plays a vital role in DNA replication. The dysfunction of MCM2 results in the occurrence and progression of multiple cancers through impairing DNA replication and cell proliferation. Conclusions MCM2 is a vital regulator in DNA replication. The overexpression of MCM2 was detected in multiple types of cancers, and the dysfunction of MCM2 was correlated with the progression and poor prognoses of malignant tumors. According to the altered expression of MCM2 and its correlation with clinicopathological features of cancer patients, MCM2 was thought to be a sensitive biomarker for cancer diagnosis, prognosis, and chemotherapy response. The anti-tumor effect induced by MCM2 inhibition implies the potential of MCM2 to be a novel therapeutic target for cancer treatment. Since DNA replication stress, which may stimulate anti-tumor immunity, frequently occurs in MCM2 deficient cells, it also proposes the possibility that MCM2 targeting improves the effect of tumor immunotherapy.
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11
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Li WJ, Wu DW, Zhou YF, Zhang CW, Liao XW. Prognostic biomarker replication factor C subunit 5 and its correlation with immune infiltrates in acute myeloid leukemia. Hematology 2022; 27:555-564. [PMID: 35544695 DOI: 10.1080/16078454.2022.2072064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To determine the role of replication factor C subunit 5 (RFC5) in acute myeloid leukemia (AML) from four aspects: expression, prognosis, biological functions, and its effects on the immune system. METHODS The RFC5 gene expression and survival analyses, biological function analyses including functional enrichment analysis of genes co-expressed with RFC5, RFC5-interacted gene network construction, gene set enrichment analysis (GSEA), and immune infiltration analysis were performed using data based on GDC TCGA and GEO. The CIBERSORT algorithm was employed to quantify immune cell fractions. All the statistical analyses were performed in SPSS software, GraphPad Prism, and R software. RESULTS RFC5 expression was abnormally expressed in AML (P <0.05). Notably, differential RFC5 expression was observed among different FAB AML subtypes and hematopoietic lineages (all P <0.05). More importantly, high RFC5 expression served as an independent prognostic factor for the poor overall survival of AML patients (P <0.001). Enrichment analyses revealed that RFC5 was involved in cell cycle-related pathways in AML. CIBERSORT analysis showed high proportions of M2 macrophages in the high RFC5 expression group. CONCLUSIONS RFC5 might serve as an effective and robust biomarker for the diagnosis and prognosis of AML. RFC5 might be involved in the AML progression via cell cycle regulation. Moreover, the correlation between RFC5 and immune cells might provide potential assistance for AML treatment.
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Affiliation(s)
- Wang-Jun Li
- Department of Pediatric Surgery, Wenzhou Medical University, Wenzhou, People's Republic of China.,Department of Pediatric Surgery, Lishui people's Hospital, Lishui, People's Republic of China
| | - Dong-Wei Wu
- Department of Pediatric Surgery, Lishui people's Hospital, Lishui, People's Republic of China
| | - Yi-Feng Zhou
- Department of Pediatric Surgery, Lishui people's Hospital, Lishui, People's Republic of China
| | - Chen-Wei Zhang
- Department of Pediatric Surgery, Lishui people's Hospital, Lishui, People's Republic of China
| | - Xiao-Wei Liao
- Department of Pediatric Surgery, Lishui people's Hospital, Lishui, People's Republic of China
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12
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Wu G, Zhou J, Zhu X, Tang X, Liu J, Zhou Q, Chen Z, Liu T, Wang W, Xiao X, Wu T. Integrative analysis of expression, prognostic significance and immune infiltration of RFC family genes in human sarcoma. Aging (Albany NY) 2022; 14:3705-3719. [PMID: 35483337 PMCID: PMC9085243 DOI: 10.18632/aging.204039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 04/13/2022] [Indexed: 11/25/2022]
Abstract
Objective: To reveal the expression and prognostic value of replication factor C family genes (RFCs) in patients with sarcoma. Results: The results showed that the mRNA expression levels of RFC2, RFC3, RFC4, and RFC5 were increased in sarcoma tissues. In addition, Cancer Cell Line Encyclopedia (CCLE) dataset analysis indicated that RFC1, RFC2, RFC3, RFC4, and RFC5 were elevated expressed in sarcoma cell lines. Moreover, Gene Expression Profiling Interactive Analysis (GEPIA) and Kaplan-Meier Plotter showed that highly expressed RFC2-5 were associated with poor overall survival (OS) or relapse-free survival (RFS) in sarcoma patients. The results of the Tumor Immune Estimation Resource (TIMER) database indicated that the expression of RFCs was negatively correlated with the infiltration of CD4+ T cells and macrophages. Conclusions: There were significant differences in the expression of RFCs between normal tissue and sarcoma tissue, and RFC2, RFC3, RFC4, and RFC5 might be promising prognostic biomarkers for sarcoma. Methods: The expression of RFCs was analyzed using the ONCOMINE dataset and GEPIA dataset. CCLE dataset was used to assess the expression of RFCs in the cancer cell line. The prognostic value of RFCs was evaluated by GEPIA and Kaplan-Meier analysis. Furthermore, the association between RFCs and their co-expressed genes were explored via ONCOMINE and GEPIA datasets. We used the TIMER dataset to analyze the immune cell infiltration of RFCs in sarcoma.
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Affiliation(s)
- Gen Wu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China.,Clinical Medicine Eight-Year Program, 02 Class, 2014 Grade, Central South University, Changsha 410013, Hunan Province, China
| | - Jian Zhou
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Xi Zhu
- Department of Internal Medicine III, University Hospital, Ludwig Maximilian University, Munich 81377, Germany
| | - Xianzhe Tang
- Department of Orthopedics, Chenzhou No.1 People's Hospital, Chenzhou 423000, Hunan, China
| | - Jie Liu
- Department of Cardiology, The Fourth Hospital of Changsha, Changsha 410006, Hunan, China
| | - Qiong Zhou
- Department of Cardiology, The Fourth Hospital of Changsha, Changsha 410006, Hunan, China
| | - Ziyuan Chen
- Department of Orthopedics, The First People's Hospital of Changde City, Changde 415003, Hunan, China
| | - Tang Liu
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Wanchun Wang
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Xungang Xiao
- Department of Orthopedics, Chenzhou No.1 People's Hospital, Chenzhou 423000, Hunan, China
| | - Tong Wu
- Department of Emergency, The First Hospital of Changsha, Changsha 410005, Hunan, China
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13
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FOXA1 Leads to Aberrant Expression of SIX4 Affecting Cervical Cancer Cell Growth and Chemoresistance. Anal Cell Pathol 2022; 2022:9675466. [PMID: 35498155 PMCID: PMC9045987 DOI: 10.1155/2022/9675466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/26/2022] [Indexed: 11/17/2022] Open
Abstract
Cervical cancer (CC) is among the most prevalent cancers among female populations with high recurrence rates all over the world. Cisplatin (DDP) is the first-line treatment for multiple cancers, including CC. The main problem associated with its clinical application is drug resistance. This study is aimed at investigating the function and downstream regulation mechanism of forkhead-box A1 (FOXA1) in CC, which was verified as an oncogene in several cancers. Using GEO database and bioinformatics analysis, we identified FOXA1 as a possible oncogene in CC. Silencing of FOXA1 inhibited CC cell growth, invasion, and chemoresistance. Afterwards, the downstream gene of FOXA1 was predicted using a bioinformatics website and validated using ChIP and dual-luciferase assays. SIX4, a possible target of FOXA1, promoted CC cell malignant aggressiveness and chemoresistance. In addition, overexpression of SIX4 promoted phosphorylation of PI3K and AKT proteins and activated the PI3K/AKT signaling pathway. Further overexpression of SIX4 reversed the repressive effects of FOXA1 knockdown on CC cell growth, invasion, and chemoresistance in DDP-resistant cells. FOXA1-induced SIX4 facilitates CC progression and chemoresistance, highlighting a strong potential for FOXA1 to serve as a promising therapeutic target in CC.
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14
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Ni L, Sun P, Fan X, Li Z, Ren H, Li J. Berberine Inhibits FOXM1 Dependent Transcriptional Regulation of POLE2 and Interferes With the Survival of Lung Adenocarcinoma. Front Pharmacol 2022; 12:775514. [PMID: 35173608 PMCID: PMC8842794 DOI: 10.3389/fphar.2021.775514] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/28/2021] [Indexed: 12/28/2022] Open
Abstract
Background: Berberine is one of the most interesting and promising natural anticancer drugs. POLE2 is involved in many cellular functions such as DNA replication and is highly expressed in a variety of cancers. However, the specific molecular mechanism of berberine interfering with POLE2 expression in lung adenocarcinoma (LUAD) is still unknown to a great extent. Method: The KEGG database (Release 91.0) and Gene Ontology (GO) category database were used for functional annotation of differentially expressed genes after berberine treatment. Reproducibility assessment using TCGA dataset. The biological functions of berberine in LUAD were investigated by a series of in vitro and in vivo experiments: MTT, colony formation, mouse xenograft and plasmid transfection. The molecular mechanisms of berberine were demonstrated by plasmid transfection, quantitative RT-PCR and Western blotting. Result: The elevated expression of FOXM1 and the high enrichment of DNA replication pathway were confirmed in LUAD by microarray and TCGA analysis, and were positively correlated with poor prognosis. Functionally, berberine inhibited the proliferation and survival of LUAD cell lines in vitro and in vivo. Mechanistically, berberine treatment down regulated the expression of FOXM1which closely related to survival, survival related genes in Cell cycle and DNA replication pathway, and significantly down regulated the expression of survival related POLE2. Interestingly, we found that the transcription factor FOXM1 could act as a bridge between berberine and POLE2. Conclusion: Berberine significantly inhibited LUAD progression via the FOXM1/POLE2, and FOXM1/POLE2 may act as a clinical prognostic factor and a therapeutic target for LUAD. Berberine may be used as a promising therapeutic candidate for LUAD patients.
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Affiliation(s)
- Lulu Ni
- Department of Basic Medicine, Jiangnan University, Wuxi, China
| | - Ping Sun
- Department of Pathology, The Affiliated Wuxi NO. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Xiaochun Fan
- Department of Emergency, The Affiliated Wuxi NO. 2 People's Hospital of Nanjing Medical University, Wuxi, China
| | - Zhongjie Li
- Department of Basic Medicine, Jiangnan University, Wuxi, China
| | - Hongli Ren
- Institute of Science, Technology and Humanities, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiangan Li
- Department of Emergency, The Affiliated Wuxi NO. 2 People's Hospital of Nanjing Medical University, Wuxi, China
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15
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Zhang P, Chen X, Zhang L, Cao D, Chen Y, Guo Z, Chen J. POLE2 facilitates the malignant phenotypes of glioblastoma through promoting AURKA-mediated stabilization of FOXM1. Cell Death Dis 2022; 13:61. [PMID: 35039475 PMCID: PMC8763902 DOI: 10.1038/s41419-021-04498-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/06/2021] [Accepted: 12/20/2021] [Indexed: 02/08/2023]
Abstract
Glioblastoma (GBM) is a type of brain cancer with high morbidity and mortality worldwide. The clinical significance, biological roles, and underlying molecular mechanisms of DNA poly ε-B subunit (POLE2) in GBM were investigated in the study. Firstly, the Cancer Genome Atlas (TCGA) database found that POLE2 was highly expressed in GBM. Immunohistochemistry (IHC) results further confirmed that POLE2 was abnormally elevated in GBM. In addition, loss-of-function assays revealed that POLE2 knockdown could inhibit the malignant behaviors of GBM, especially reduce cell viability, weaken cell clone formation, enhance the sensitivity of apoptosis, restrain migration and inhibit epithelial-mesenchymal transition (EMT) in vitro. In vivo experiments further clarified the suppressive effects of reduced POLE2 expression on tumors. Mechanically, POLE2 knockdown promoted the ubiquitination as well as reduced the stability of Forkhead transcription factor (FOXM1), which is a known tumor promotor in GBM, through Aurora kinase A (AURKA). Moreover, the knockdown of FOXM1 could weaken the promoting effects of POLE2 on malignant behaviors of GBM. In conclusion, our study revealed crucial roles and a novel mechanism of POLE2 involved in GBM through AURKA-mediated stability of FOXM1 and may provide the theoretical basis of molecular therapy for GBM.
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Affiliation(s)
- Peng Zhang
- Department of Neurosurgery of the First Affiliated Hospital of Zhengzhou University, Zhengzhou, No.1 Jianshe East Road, Zhengzhou City, Henan Province, China
| | - Xu Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Ave, Wuhan City, Hubei Province, China.
| | - LingYun Zhang
- Department of Thyroid and Parathyroid Surgery, West China Hospital, Sichuan University, No. 37 Guoxue Alley, Chengdu City, Sichuan Province, China
| | - Dan Cao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Ave, Wuhan City, Hubei Province, China
| | - Yong Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Ave, Wuhan City, Hubei Province, China
| | - ZhengQian Guo
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Ave, Wuhan City, Hubei Province, China
| | - Jian Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1095 Jiefang Ave, Wuhan City, Hubei Province, China
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16
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Ma H, Liu Z, Li H, Guo X, Guo S, Qu P, Wang Y. Bioinformatics Analysis Reveals MCM3 as an Important Prognostic Marker in Cervical Cancer. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:8494260. [PMID: 34671420 PMCID: PMC8523256 DOI: 10.1155/2021/8494260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/14/2021] [Accepted: 09/18/2021] [Indexed: 12/09/2022]
Abstract
The minichromosome maintenance complex 3 (MCM3) is essential for the regulation of DNA replication and cell cycle progression. However, the expression and prognostic values of MCM3 in cervical cancer (CC) have not been well-studied. Herein, we investigated the expression patterns and survival data of MCM3 in cervical cancer patients from the ONCOMINE, GEPIA, Human Protein Atlas, UALCAN, Kaplan-Meier Plotter, and LinkedOmics databases. The expression level of MCM3 is negatively correlated with advanced tumor stage and metastatic status. Specifically, MCM3 is significantly differentially expressed between patients in stage 1 and stage 3 cervical cancer with p value 0.0138. Similarly, the p values between stage 1 and stage 4 cervical cancer, between stage 2 and stage 3, and between stage 2 and stage 4 are 0.00089, 0.0244, and 0.00197, respectively. Not only that, cervical cancer patients with high mRNA expression of MCM3 may indicate longer overall survival but indicate shorter relapse-free survival. PRIM2 and MCM6 are positively correlated genes of MCM3. Bioinformatics analysis revealed that MCM3 might be considered a biological indicator for prognostic evaluation of cervical cancer. However, it is currently limited to bioinformatics analysis, and more clinical tissue specimens and cell experiments are needed to further explore the role of MCM3 in the occurrence and progression of cervical cancer.
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Affiliation(s)
- Hui Ma
- Department of Gynecology, The Secondary Hospital of Tianjin Medical University, No. 23 Pingjiang Road, Hexi District, Tianjin 300211, China
| | - Zhen Liu
- Department of Gynecology, Chifeng Municipal Hospital, Chifeng Clinical Medical School of Inner Mongolia Medical University, Chifeng 024099, China
| | - Honglin Li
- Department of Gynecology, The Secondary Hospital of Tianjin Medical University, No. 23 Pingjiang Road, Hexi District, Tianjin 300211, China
| | - Xuewang Guo
- Department of Gynecology, The Secondary Hospital of Tianjin Medical University, No. 23 Pingjiang Road, Hexi District, Tianjin 300211, China
| | - Sujie Guo
- Department of Gynecology, The Secondary Hospital of Tianjin Medical University, No. 23 Pingjiang Road, Hexi District, Tianjin 300211, China
| | - Pengpeng Qu
- Department of Gynecology Oncology, Tianjin Central Hospital of Gynecology & Obstetrics, 156 Sanmalu, Nankai, Tianjin 300100, China
| | - Yuquan Wang
- Department of Gynecology, The Secondary Hospital of Tianjin Medical University, No. 23 Pingjiang Road, Hexi District, Tianjin 300211, China
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17
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Dawoud MM, Aiad HAES, Tawfiq EAE, Al-Qalashy FSA, Eissa N, El-Rebey HS. Role of SIX1, EYA2, and E-cadherin in ovarian carcinoma. Evidence on epithelial-mesenchymal transition from an immunohistochemical study. Ann Diagn Pathol 2021; 55:151815. [PMID: 34534789 DOI: 10.1016/j.anndiagpath.2021.151815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/12/2021] [Accepted: 08/29/2021] [Indexed: 11/26/2022]
Abstract
This study aims to investigate the expression of SIX1, EYA2, and E-cadherin in ovarian cancer (OC). It was conducted on 97 cases of surface epithelial tumors (SEOTs). Immunohistochemistry (IHC) staining for the three markers was applied to archival paraffin-embedded sections. Results of semi-quantitative scoring were statistically compared, correlated with clinic-pathologic parameters, response to therapy and with patient survival. RESULTS: There was a significant association of SIX1 expression in the intratumoral stroma (ITS) with malignant cases (P < 0.0001). There was a significant direct correlation between tumour cell expression of SIX1 and EYA2 (P = 0.03) and an inverse correlation between SIX1 and E-cadherin (P = 0.03). Additionally, there were direct correlations between SIX1 expression and larger tumour size (P = 0.05), high mitosis (P < 0.0001), and advanced FIGO stage (P = 0.06), and between EYA2 expression and LN metastasis (P = 0.02), and low apoptotic index (P = 0.007). Only SIX1 expression in ITS affected the patient survival by univariate analysis (P = 0.004). CONCLUSIONS: SIX1/EYA2 complex may have a poor prognostic role in OC. SIX1 expression in ITS may be used as a predictive marker of stromal invasion in ovarian borderline tumors and could affect patients' survival in OC. SIX1, EYA2, and E-cadherin may constitute a pathway that could be targeted to stop the progression of SEOTs.
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Affiliation(s)
| | | | | | | | - Nehad Eissa
- Department of Gynaecology and Obstetrics, Faculty of Medicine, Menoufia University, Egypt
| | - Hala Said El-Rebey
- Department of Pathology, Faculty of Medicine, Menoufia University, Egypt
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18
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Meurer L, Ferdman L, Belcher B, Camarata T. The SIX Family of Transcription Factors: Common Themes Integrating Developmental and Cancer Biology. Front Cell Dev Biol 2021; 9:707854. [PMID: 34490256 PMCID: PMC8417317 DOI: 10.3389/fcell.2021.707854] [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: 05/10/2021] [Accepted: 06/28/2021] [Indexed: 01/19/2023] Open
Abstract
The sine oculis (SIX) family of transcription factors are key regulators of developmental processes during embryogenesis. Members of this family control gene expression to promote self-renewal of progenitor cell populations and govern mechanisms of cell differentiation. When the function of SIX genes becomes disrupted, distinct congenital defects develops both in animal models and humans. In addition to the embryonic setting, members of the SIX family have been found to be critical regulators of tumorigenesis, promoting cell proliferation, epithelial-to-mesenchymal transition, and metastasis. Research in both the fields of developmental biology and cancer research have provided an extensive understanding of SIX family transcription factor functions. Here we review recent progress in elucidating the role of SIX family genes in congenital disease as well as in the promotion of cancer. Common themes arise when comparing SIX transcription factor function during embryonic and cancer development. We highlight the complementary nature of these two fields and how knowledge in one area can open new aspects of experimentation in the other.
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Affiliation(s)
- Logan Meurer
- Department of Basic Sciences, NYIT College of Osteopathic Medicine at Arkansas State University, Jonesboro, AR, United States
| | - Leonard Ferdman
- Department of Basic Sciences, NYIT College of Osteopathic Medicine at Arkansas State University, Jonesboro, AR, United States
| | - Beau Belcher
- Department of Biological Sciences, Arkansas State University, Jonesboro, AR, United States
| | - Troy Camarata
- Department of Basic Sciences, NYIT College of Osteopathic Medicine at Arkansas State University, Jonesboro, AR, United States
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19
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Li Y, Xu F, Chen F, Chen Y, Ge D, Zhang S, Lu C. Transcriptomics based multi-dimensional characterization and drug screen in esophageal squamous cell carcinoma. EBioMedicine 2021; 70:103510. [PMID: 34365093 PMCID: PMC8353400 DOI: 10.1016/j.ebiom.2021.103510] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) remains one of the deadly cancer types. Comprehensively dissecting the molecular characterization and the heterogeneity of ESCC paves the way for developing more promising therapeutics. METHODS Expression profiles of multiple ESCC datasets were integrated. ATAC-seq and RNA-seq were combined to reveal the chromatin accessibility features. A prognosis-related subtype classifier (PrSC) was constructed, and its association with the tumor microenvironment (TME) and immunotherapy was assessed. The key gene signature was validated in clinical samples. Based on the TME heterogeneity of ESCC patients, potential subtype-specific therapeutic agents were screened. FINDINGS The common differentially expressed genes (cDEGs) in ESCC were identified. Up-regulated genes (HEATR1, TIMELESS, DTL, GINS1, RUVBL1, and ECT2) were found highly important in ESCC cell survival. The expression alterations of PRIM2, HPGD, NELL2, and TFAP2B were associated with chromatin accessibility changes. PrSC was a robust scoring tool that was not only associated with the prognosis of ESCC patients, but also could reflect the TME heterogeneity. TNS1high fibroblasts were associated with immune exclusion. TG-101348 and Vinorelbine were identified as potential subtype-specific therapeutic agents. Besides, the application of PrSC into two immunotherapy cohorts indicated its potential value in assessing treatment response to immunotherapy. INTERPRETATION Our study depicted the multi-dimensional characterization of ESCC, established a robust scoring tool for the prognosis assessment, highlighted the role of TNS1high fibroblasts in TME, and identified potential drugs for clinical use. FUNDING A full list of funding bodies that contributed to this study can be found in the Acknowledgements section.
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Affiliation(s)
- Yin Li
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fengkai Xu
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fanghua Chen
- Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Fudan University, Shanghai, China
| | - Yiwei Chen
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Di Ge
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shu Zhang
- Liver Cancer Institute, Zhongshan Hospital, and Key Laboratory of Carcinogenesis and Cancer Invasion (Ministry of Education), Fudan University, Shanghai, China; Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Chunlai Lu
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
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20
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Li D, Liu SH, Liu QY, Zou QQ, Lv L, Liu GL, Wu Y. Analysis of the Role and Regulatory Mechanism of hsa-miR-504 in Cervical Cancer Based on The Cancer Genome Atlas Database. Cancer Biother Radiopharm 2021; 36:511-520. [PMID: 32589477 DOI: 10.1089/cbr.2020.3798] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Dan Li
- Department of Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Si-Hong Liu
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
- Department of Orthopaedics, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
| | - Qiong-Yao Liu
- Department of Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Qing-Qing Zou
- Department of Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Lin Lv
- Department of Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Guo-Long Liu
- Department of Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Yong Wu
- Department of Oncology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, People's Republic of China
- Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, People's Republic of China
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21
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Qin R, Cao L, Ye C, Wang J, Sun Z. Screening of genes related to survival prognosis of cervical squamous cell carcinoma and construction of prognosis prediction model. J Obstet Gynaecol Res 2021; 47:3310-3321. [PMID: 34219322 DOI: 10.1111/jog.14827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 04/01/2021] [Accepted: 04/30/2021] [Indexed: 12/09/2022]
Abstract
AIM We aimed to screen for the genes related to survival prognosis of cervical squamous cell carcinoma (CSCC) and then constructed a prognosis prediction model. METHODS The GSE63514 dataset was obtained from the National Center for Biotechnology Information (NCBI) Gene Expression Omnibus (GEO). The CSCC gene dataset and the GSE44001 dataset were obtained from The Cancer Genome Atlas and NCBI GEO, respectively. The Kaplan-Meier (KM) curve was used to evaluate the association between high and low prognosis that was with the actual survival prognosis information. The Cox proportional hazards model was used to screen out the optimized prognostic-related signature differentially expressed gene (DEG) combinations. Gene set enrichment analysis was used to perform pathway enrichment annotation analysis for DEGs that were related to risk grouping. RESULTS In total, 16 399 DEGs were obtained and 23 gene ontology biological processes and 8 Kyoto Encyclopedia of Genes and Genomes pathways were screened. Nine optimized DEG groups related to independent prognosis were selected. The KM curves of pathologic N0 and N1 showed that low-risk group were associated with a better overall survival (p = 1.518e; p = 1.704e-01). The pathways related to risk grouping were cytokine-cytokine receptor interaction, JAK stat signaling pathway, and glycolysis-gluconeogenesis. CONCLUSION On the basis of this study, we established a prognostic risk model, which provided a reliable prognostic tool and was of great significance for locating the biomarkers related to survival prognosis in CSCC.
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Affiliation(s)
- Rui Qin
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, Changchun, Jilin, P.R. China
| | - Lu Cao
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, Changchun, Jilin, P.R. China
| | - Cong Ye
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, Changchun, Jilin, P.R. China
| | - Junrong Wang
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, Changchun, Jilin, P.R. China
| | - Ziqian Sun
- Department of Obstetrics and Gynecology, The Third Hospital of Jilin University, Changchun, Jilin, P.R. China
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22
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Wu B, Xi S. Bioinformatics analysis of differentially expressed genes and pathways in the development of cervical cancer. BMC Cancer 2021; 21:733. [PMID: 34174849 PMCID: PMC8236200 DOI: 10.1186/s12885-021-08412-4] [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: 01/08/2021] [Accepted: 05/25/2021] [Indexed: 12/24/2022] Open
Abstract
Background This study aimed to explore and identify key genes and signaling pathways that contribute to the progression of cervical cancer to improve prognosis. Methods Three gene expression profiles (GSE63514, GSE64217 and GSE138080) were screened and downloaded from the Gene Expression Omnibus database (GEO). Differentially expressed genes (DEGs) were screened using the GEO2R and Venn diagram tools. Then, Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed. Gene set enrichment analysis (GSEA) was performed to analyze the three gene expression profiles. Moreover, a protein–protein interaction (PPI) network of the DEGs was constructed, and functional enrichment analysis was performed. On this basis, hub genes from critical PPI subnetworks were explored with Cytoscape software. The expression of these genes in tumors was verified, and survival analysis of potential prognostic genes from critical subnetworks was conducted. Functional annotation, multiple gene comparison and dimensionality reduction in candidate genes indicated the clinical significance of potential targets. Results A total of 476 DEGs were screened: 253 upregulated genes and 223 downregulated genes. DEGs were enriched in 22 biological processes, 16 cellular components and 9 molecular functions in precancerous lesions and cervical cancer. DEGs were mainly enriched in 10 KEGG pathways. Through intersection analysis and data mining, 3 key KEGG pathways and related core genes were revealed by GSEA. Moreover, a PPI network of 476 DEGs was constructed, hub genes from 12 critical subnetworks were explored, and a total of 14 potential molecular targets were obtained. Conclusions These findings promote the understanding of the molecular mechanism of and clinically related molecular targets for cervical cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08412-4.
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Affiliation(s)
- Baojie Wu
- Shanghai Zerun Biotechnology Co., Ltd., Pilot Department, Building 9, 1690 Zhangheng Road Pudong, Shanghai, 201203, China.
| | - Shuyi Xi
- Shanghai Zerun Biotechnology Co., Ltd., Pilot Department, Building 9, 1690 Zhangheng Road Pudong, Shanghai, 201203, China
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Tu S, Zhang H, Yang X, Wen W, Song K, Yu X, Qu X. Screening of cervical cancer-related hub genes based on comprehensive bioinformatics analysis. Cancer Biomark 2021; 32:303-315. [PMID: 34151839 DOI: 10.3233/cbm-203262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Since the molecular mechanisms of cervical cancer (CC) have not been completely discovered, it is of great significance to identify the hub genes and pathways of this disease to reveal the molecular mechanisms of cervical cancer. OBJECTIVE The study aimed to identify the biological functions and prognostic value of hub genes in cervical cancer. METHODS The gene expression data of CC patients were downloaded from the Gene Expression Omnibus (GEO) database and The Cancer Genome Atlas (TCGA) database. The core genes were screened out by differential gene expression analysis and weighted gene co-expression network analysis (WGCNA). R software, the STRING online tool and Cytoscape software were used to screen out the hub genes. The GEPIA public database was used to further verify the expression levels of the hub genes in normal tissues and tumour tissues and determine the disease-free survival (DFS) rates of the hub genes. The protein expression of the survival-related hub genes was identified with the Human Protein Atlas (HPA) database. RESULTS A total of 64 core genes were screened, and 10 genes, including RFC5, POLE3, RAD51, RMI1, PALB2, HDAC1, MCM4, ESR1, FOS and E2F1, were identified as hub genes. Compared with that in normal tissues, RFC5, POLE3, RAD51,RMI1, PALB2, MCM4 and E2F1 were all significantly upregulated in cervical cancer, ESR1 was significantly downregulated in cervical cancer, and RFC5 expression in CC patients was significantly related to OS. In the DFS analysis, no significant difference was observed in the expression level of RFC5 in cervical cancer patients. Finally, RFC5 protein levels verified by the HPA database were consistently upregulated with mRNA levels in CC samples. CONCLUSIONS RFC5 may play important roles in the occurrence and prognosis of CC. It could be further explored and validated as a potential predictor and therapeutic target for CC.
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Chen Q, Guo H, Zong Y, Zhao X. Curcumin restrains hepatocellular carcinoma progression depending on the regulation of the circ_0078710/miR-378b/PRIM2 axis. J Recept Signal Transduct Res 2021; 42:313-324. [PMID: 34139933 DOI: 10.1080/10799893.2021.1936554] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE Curcumin has shown anti-tumor activity in multiple malignancies. The aim of our study was to explore the molecular mechanism behind the anti-tumor activity of curcumin in hepatocellular carcinoma (HCC). METHODS The proliferation, migration, invasion, and apoptosis were analyzed by 5-ethynyl-2'-deoxyuridine (EDU) assay, transwell migration assay, transwell invasion assay, and flow cytometry. Western blot assay and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) were conducted to analyze protein and RNA expression. Dual-luciferase reporter assay, RNA immunoprecipitation (RIP) assay, and RNA-pull down assay were performed to confirm the interaction between microRNA-378b (miR-378b) and circular RNA_0078710 (circ_0078710) or DNA primase, polypeptide 2 (PRIM2). Tumor xenograft assay was conducted to assess the roles of curcumin and circ_0078710 in vivo. RESULTS Curcumin stimulation restrained the proliferation, migration, and invasion, and triggered the apoptosis of HCC cells. Curcumin down-regulated the expression of circ_0078710 in HCC cells in a dose-dependent manner. Circ_0078710 knockdown aggravated curcumin-mediated anti-tumor effects in HCC cells. Circ_0078710 acted as a molecular sponge for miR-378b. Circ_0078710 interference-induced effects in curcumin-stimulated HCC cells were partly abolished by the silence of miR-378b. MiR-378b bound to the 3' untranslated region (3'UTR) of PRIM2. PRIM2 overexpression partly reversed circ_0078710 interference-mediated influences in curcumin-treated HCC cells. Circ_0078710 silencing aggravated curcumin-mediated suppressive effect in tumor growth in vivo. CONCLUSIONS Circ_0078710 silencing aggravated curcumin-mediated anti-tumor effects through mediating the miR-378b/PRIM2 signaling in HCC cells.
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Affiliation(s)
- Qian Chen
- Department of Traditional Chinese Medicine, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian City, Jiangsu Province, China
| | - Hai Guo
- Department of Traditional Chinese Medicine, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian City, Jiangsu Province, China
| | - Yan Zong
- Department of Traditional Chinese Medicine, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian City, Jiangsu Province, China
| | - Xiaofeng Zhao
- Department of Traditional Chinese Medicine, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian City, Jiangsu Province, China
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Zeng T, Guan Y, Li YK, Wu Q, Tang XJ, Zeng X, Ling H, Zou J. The DNA replication regulator MCM6: An emerging cancer biomarker and target. Clin Chim Acta 2021; 517:92-98. [PMID: 33609557 DOI: 10.1016/j.cca.2021.02.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/01/2021] [Accepted: 02/05/2021] [Indexed: 01/07/2023]
Abstract
MCM6 is a significant DNA replication regulator that plays a crucial role in sustaining the cell cycle. In many cancer cells, MCM6 expression is enhanced. For example, persistently increased expression of MCM6 promotes the formation, development and progression of hepatocellular carcinoma (HCC). Up- and down-regulation studies have indicated that MCM6 regulates cell cycle, proliferation, metastasis, immune response and the maintenance of the DNA replication system. MCM6 can also regulate downstream signaling such as MEK/ERK thus promoting carcinogenesis. Accordingly, MCM6 may represent a sensitive and specific biomarker to predict adverse progression and poor outcome. Furthermore, inhibition of MCM6 may be an effective cancer treatment. The present review summarizes the latest results on the inactivating and activating functions of MCM6, underlining its function in carcinogenesis. Further studies of the carcinogenic functions of MCM6 may provide novel insight into cancer biology and shed light on new approaches for cancer diagnosis and treatment.
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Affiliation(s)
- Tian Zeng
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, Hunan 421001, PR China
| | - Yang Guan
- Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330000, PR China
| | - Yu-Kun Li
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, Hunan 421001, PR China
| | - Qing Wu
- Department of Digestive Medical, The Affiliated Nanhua Hospital, University of South China, Hengyang 421002, PR China
| | - Xiao-Jun Tang
- Department of Spinal Surgery, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, PR China
| | - Xin Zeng
- Department of Histology and Embryology, Chongqing Three Gorges Medical College, Wanzhou, Chongqing 404000, PR China
| | - Hui Ling
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, Hunan 421001, PR China.
| | - Juan Zou
- Hunan Province Key Laboratory of Tumor Cellular & Molecular Pathology, Cancer Research Institute, University of South China, Hengyang, Hunan 421001, PR China.
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A Novel Four-Gene Prognostic Signature as a Risk Biomarker in Cervical Cancer. Int J Genomics 2020; 2020:4535820. [PMID: 33381538 PMCID: PMC7758149 DOI: 10.1155/2020/4535820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/28/2020] [Accepted: 12/03/2020] [Indexed: 12/24/2022] Open
Abstract
Background Cervical cancer (CC) is a major malignancy affecting women worldwide, with limited treatment options for patients with advanced disease. The aim of this study was to identify novel prognostic biomarkers for CC. Methods RNA-Seq data from four Gene Expression Omnibus datasets (GSE5787, GSE6791, GSE26511, and GSE63514) were used to identify differentially expressed genes (DEGs) between CC and normal cervical tissues. Functional and enrichment analyses of the DEGs were performed using the Search Tool for the Retrieval of Interacting Genes/Proteins (STRING) database and the Database for Annotation, Visualization, and Integrated Discovery (DAVID). The Oncomine database, Cytoscape software, and Kaplan-Meier survival analyses were used for in-depth screening of hub DEGs. The Cox regression was then used to develop a prognostic signature, which was in turn used to create a nomogram. Results A total of 207 DEGs were identified in the tissue samples, eight of which were prognostically significant in terms of overall survival (OS). Thereafter, a novel four-gene signature consisting of DSG2, MMP1, SPP1, and MCM2 was developed and validated using stepwise Cox analysis. The area under the receiver operating characteristic (ROC) curve (AUC) values were 0.785, 0.609, and 0.686 in the training, verification, and combination groups, respectively. The protein expression levels of the four genes were well validated by the western blotting. Moreover, the nomogram analysis showed that a combination of this four-gene signature plus lymph node metastasis (LNM) status effectively predicted the 1- and 3-year OS probabilities of CC patients with accuracies of 69.01% and 83.93%, respectively. Conclusions We developed a four-gene signature that can accurately predict the prognosis in terms of OS, of CC patients, and could be a valuable tool for designing treatment strategies.
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Yuan B, Liao F, Shi ZZ, Ren Y, Deng XL, Yang TT, Li DY, Li RF, Pu DD, Wang YJ, Tan Y, Yang Z, Zhang YH. Dihydroartemisinin Inhibits the Proliferation, Colony Formation and Induces Ferroptosis of Lung Cancer Cells by Inhibiting PRIM2/SLC7A11 Axis. Onco Targets Ther 2020; 13:10829-10840. [PMID: 33149601 PMCID: PMC7602909 DOI: 10.2147/ott.s248492] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022] Open
Abstract
Objective Lung cancer is the first leading cause of cancer-related deaths both worldwide and in China and threatens human health and quality of life. New drugs and therapeutic methods are urgently needed. Our study evaluated the roles of dihydroartemisinin (DHA) in lung cancer and further explored its underlying mechanisms. Methods CCK-8, colony formation and trypan blue exclusion assays were used to detect the cell viability, colony formation ability and cell death. qRT-PCR and Western blotting assays were applied to analyze the expressions of key molecules. Results DHA inhibited the proliferation and colony formation abilities and enhanced the cell death and induced ferroptosis of lung NCI-H23 and XWLC-05 cancer cells. DHA reduced PRIM2 expression and silencing PRIM2 mimicked the inhibitory roles on proliferation and colony formation and promotive roles on cell death and ferroptosis of DHA in lung NCI-H23 and XWLC-05 cancer cells. We further found that DHA treatment and loss of PRIM2 reduced the GSH level and increased the cellular lipid ROS and mitochondrial MDA levels, and further downregulated the expressions of SLC7A11 and β-catenin in lung cancer cells, respectively. Exogenetic overexpression of PRIM2 recovered the inhibitory effects of DHA on proliferation and colony formation in lung NCI-H23 cancer cells, meanwhile loss of PRIM2 sensitizes NCI-H23 cells to DHA therapy. In vivo experiment further showed that DHA treatment significantly suppressed the tumor growth and downregulated PRIM2 and SLC7A11. Conclusion Our study suggested that DHA inhibited the proliferation, colony formation and enhanced cell death and induced ferroptosis of lung cancer cells by inactivating PRIM2/SLC7A11 axis. Loss of PRIM2 induced ferroptosis might developed to be a novel therapeutic method in lung cancer therapy.
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Affiliation(s)
- Bing Yuan
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Feng Liao
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Zhi-Zhou Shi
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Yuan Ren
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Xiao-Li Deng
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Ting-Ting Yang
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Deng-Yuan Li
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Ru-Fang Li
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Dan-Dan Pu
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Yu-Jue Wang
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Yan Tan
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Zhen Yang
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
| | - Yun-Hui Zhang
- Department of Pulmonary and Critical Care Medicine, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, People's Republic of China
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Zhu Y, Chen G, Song Y, Chen Z, Chen X. POLE2 knockdown reduce tumorigenesis in esophageal squamous cells. Cancer Cell Int 2020; 20:388. [PMID: 32831648 PMCID: PMC7422519 DOI: 10.1186/s12935-020-01477-4] [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: 05/28/2020] [Accepted: 08/01/2020] [Indexed: 01/19/2023] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is one of the most frequent malignant tumors originated from digestive system around the world and the treatment was limited by the unclear mechanism. DNA polymerase epsilon 2, accessory subunit (POLE2) is involved in DNA replication, repair, and cell cycle control, whose association with ESCC is still not clear. Methods In this study, the expression level of POLE2 in ESCC tissues was detected by IHC. The POLE2 knockdown cell line was constructed, identified by qPCR and western blot and used for detecting cellular functions and constructing xenotransplantation mice model. MTT Assay, colony formation assay, flow cytometry, wound-healing assay and Transwell assay were used to detected cell proliferation, apoptosis and migration. Results We firstly identified that the expression of POLE2 was overexpressed in ESCC. Moreover, the high expression of POLE2 can predict the tumor deterioration and poor prognosis of ESCC patients. Additionally, downregulation of POLE2 was involved in ESCC progression by promoting proliferation, migration, and inhibiting apoptosis in vitro. In vivo studies proved that POLE2 was positively correlated with ESCC tumor formation, which was consistent with the results in vitro. We also illuminated that POLE2 knockdown upregulated pro-apoptotic proteins (Bax, Caspase3, CD40L, FasL, IGFBP-5 and P21) and downregulated anti-apoptotic proteins (CLAP-2, IGF-I and sTNF-R2). In addition, POLE2 was involved in ESCC via targeting PI3K/Akt, Cyclin D1 signaling pathway. Conclusions Therefore, POLE2 was proved to be involved in the development of ESCC, which may be a potential therapeutic target and bring new breakthroughs in the treatment of ESCC.
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Affiliation(s)
- Yongjun Zhu
- Department of Cardiothoracic Surgery, Huashan Hospital, Fudan University, No. 12, Mid, Wulumuqi Rd, Shanghai, China
| | - Gang Chen
- Department of Cardiothoracic Surgery, Huashan Hospital, Fudan University, No. 12, Mid, Wulumuqi Rd, Shanghai, China
| | - Yang Song
- Department of Cardiothoracic Surgery, Huashan Hospital, Fudan University, No. 12, Mid, Wulumuqi Rd, Shanghai, China
| | - Zhiming Chen
- Department of Cardiothoracic Surgery, Huashan Hospital, Fudan University, No. 12, Mid, Wulumuqi Rd, Shanghai, China
| | - Xiaofeng Chen
- Department of Cardiothoracic Surgery, Huashan Hospital, Fudan University, No. 12, Mid, Wulumuqi Rd, Shanghai, China
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Guo C, Gong M, Li Z. Knockdown of lncRNA MCM3AP-AS1 Attenuates Chemoresistance of Burkitt Lymphoma to Doxorubicin Treatment via Targeting the miR-15a/EIF4E Axis. Cancer Manag Res 2020; 12:5845-5855. [PMID: 32765087 PMCID: PMC7371474 DOI: 10.2147/cmar.s248698] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 06/28/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose The long-noncoding RNA MCM3AP-AS1 has been shown to participate in the tumorigenesis and growth of several types of cancer, but little is known about the role of MCM3AP-AS1 in the chemoresistance of lymphoma. Methods A series of patients with Burkitt lymphoma were enrolled for clinical analysis. Daudi and Namalwa cells were used for further experiments. CCK-8 and apoptosis assays were used to assess the response to doxorubicin. Mitochondrial membrane potential assays and high-resolution respirometry were used to assess mitochondrial function. Western blotting was used to detect the expression of certain molecules. Luciferase assays and microRNA transfection were used to clarify the regulatory mechanisms of MCM3AP-AS1. An in vivo model using BALB/c nude mice was utilized to investigate the effects of MCM3AP-AS1 on cell proliferation and tumor growth. Results The expression level of MCM3AP-AS1 was increased in tumors compared with normal lymph nodes, which indicated poor prognosis in patients with Burkitt lymphoma. Moreover, compared with siNC transfection, MCM3AP-AS1 knockdown decreased cell viability and increased apoptosis rates upon doxorubicin treatment compared with siNC. Further studies indicated that upregulation of several antiapoptotic factors, downstream of EIF4E, was partially responsible for MCM3AP-AS1-induced chemoresistance. Moreover, miR-15a functioned as a link between MCM3AP-AS1 and EIF4E, and was sponged by MCM3AP-AS1. Finally, we showed that the MCM3AP-AS1/miR-15a/EIF4E axis regulated the chemoresistance of lymphoma cells in vitro and in vivo. Conclusion MCM3AP-AS1/miR-15a/EIF4E axis plays a role in the chemoresistance of Burkitt lymphoma, and it might become a promising target for lymphoma therapeutics.
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Affiliation(s)
- Chao Guo
- Department of Hematology, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Ming Gong
- Department of Hematology, China-Japan Friendship Hospital, Beijing, People's Republic of China
| | - Zhenling Li
- Department of Hematology, China-Japan Friendship Hospital, Beijing, People's Republic of China
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Karan D, Dubey S, Pirisi L, Nagel A, Pina I, Choo YM, Hamann MT. The Marine Natural Product Manzamine A Inhibits Cervical Cancer by Targeting the SIX1 Protein. JOURNAL OF NATURAL PRODUCTS 2020; 83:286-295. [PMID: 32022559 PMCID: PMC7161578 DOI: 10.1021/acs.jnatprod.9b00577] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Indexed: 06/10/2023]
Abstract
Natural products remain an important source of drug leads covering unique chemical space and providing significant therapeutic value for the control of cancer and infectious diseases resistant to current drugs. Here, we determined the antiproliferative activity of a natural product manzamine A (1) from an Indo-Pacific sponge following various in vitro cellular assays targeting cervical cancer (C33A, HeLa, SiHa, and CaSki). Our data demonstrated the antiproliferative effects of 1 at relatively low and non-cytotoxic concentrations (up to 4 μM). Mechanistic investigations confirmed that 1 blocked cell cycle progression in SiHa and CaSki cells at G1/S phase and regulated cell cycle-related genes, including restoration of p21 and p53 expression. In apoptotic assays, HeLa cells showed the highest sensitivity to 1 as compared to other cell types (C33A, SiHa, and CaSki). Interestingly, 1 decreased the levels of the oncoprotein SIX1, which is associated with oncogenesis in cervical cancer. To further investigate the structure-activity relationship among manzamine A (1) class with potential antiproliferative activity, molecular networking facilitated the efficient identification, dereplication, and assignment of structures from the manzamine class and revealed the significant potential in the design of optimized molecules for the treatment of cervical cancer. These data suggest that this sponge-derived natural product class warrants further attention regarding the design and development of novel manzamine analogues, which may be efficacious for preventive and therapeutic treatment of cancer. Additionally, this study reveals the significance of protecting fragile marine ecosystems from climate change-induced loss of species diversity.
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Affiliation(s)
- Dev Karan
- Department
of Pathology, MCW Cancer Center and Prostate Cancer Center of Excellence, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin, United States
| | - Seema Dubey
- Department
of Pathology, MCW Cancer Center and Prostate Cancer Center of Excellence, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin, United States
| | - Lucia Pirisi
- Department
of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, United States
| | - Alexis Nagel
- Department
of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Ivett Pina
- Department
of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Yeun-Mun Choo
- Department
of Chemistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Mark T Hamann
- Department
of Drug Discovery and Biomedical Sciences, Medical University of South Carolina, Charleston, South Carolina, United States
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Zhang X, Bai J, Yuan C, Long L, Zheng Z, Wang Q, Chen F, Zhou Y. Bioinformatics analysis and identification of potential genes related to pathogenesis of cervical intraepithelial neoplasia. J Cancer 2020; 11:2150-2157. [PMID: 32127942 PMCID: PMC7052918 DOI: 10.7150/jca.38211] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 01/05/2020] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to explore and identify the key genes and signal pathways contributing to cervical intraepithelial neoplasia (CIN). The gene expression profiles of GSE63514 were downloaded from Gene Expression Omnibus database. Differentially expressed genes (DEGs) were screened performing with packages in software R. After Gene ontology terms, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyzing, and Gene set enrichment analysis (GSEA), weighted gene co-expression network analysis (WGCNA) was used to analyze these genes. Then sub-modules were subsequently analyzed base CIN grade, and protein-protein interaction (PPI) network of DEGs were constructed. 537 DEGs were screened in total, consisting 331 up-regulated genes and 206 down-regulated genes in CIN samples compared to normal samples. The most DEGs were enriched in chromosomal region in cellular component (CC), organelle fission inbiological process (BP) and ATPase activity in molecular function (MF). KEGG pathway enrichment analyzing found the DEGs were mainly concentrated in 10 pathways. The results of GSEA mainly enriched in 4 functional sets: E2F-Targets, G2M-Checkpoint, Mitotic-Spindle and Spermatogenesis. A total of 6 modules were identified by WCGNA. Subsequently, grey module was the highest correlation (Cor=0.78, P=5e-22) and 31 genes were taken as candidate hub genes for CIN high grade risk (weighted correlation coefficients >0.80). Finally, diagnostic analysis showed that in addition to CCDC7, the expression levels of the remaining 13 DEGs have a high diagnostic value (AUC>0.8 and P<0.05). These findings provided a new sight into the understanding of molecular functions for CIN.
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Affiliation(s)
- Xue Zhang
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Jian Bai
- Department of Gastrointestinal Surgery and Department of Gastric and Colorectal Surgical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Cheng Yuan
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Long Long
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Zhewen Zheng
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Qingqing Wang
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Fengxia Chen
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yunfeng Zhou
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
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Qiu HZ, Huang J, Xiang CC, Li R, Zuo ED, Zhang Y, Shan L, Cheng X. Screening and Discovery of New Potential Biomarkers and Small Molecule Drugs for Cervical Cancer: A Bioinformatics Analysis. Technol Cancer Res Treat 2020; 19:1533033820980112. [PMID: 33302814 PMCID: PMC7734488 DOI: 10.1177/1533033820980112] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/09/2020] [Accepted: 11/04/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Cervical cancer (CC) is the second most common type of malignant tumor survival rate is low in advanced stage, metastatic, and recurrent CC patients. This study aimed at identifying potential genes and drugs for CC diagnosis and targeting therapies. METHODS Three GEO mRNA microarray datasets of CC tissues and non-cancerous tissues were analyzed for differentially expressed genes (DEGs) by limma package. GO (Gene Ontologies) and KEGG (Kyoto Encyclopedia of Genes and Genomes) were used to explore the relationships between the DEGs. Protein-protein interaction (PPI) of these genes was established by the STRING database. MCODE was used for screening significant modules in the PPI networks to select hub genes. Biochemical mechanisms of the hub genes were investigated with Metascape. GEPIA database was used for validating the core genes. According to these DEGs, molecular candidates for CC were recognized from the CMAP database. RESULTS We identified 309 overlapping DEGs in the 2 tissue-types. Pathway analysis revealed that the DEGs were involved in cell cycle, DNA replication, and p53 signaling. PPI networks between overlapping DEGs showed 68 high-connectivity DEGs that were chosen as hub genes. The GEPIA database showed that the expression levels of RRM2, CDC45, GINS2, HELLS, KNTC1, MCM2, MYBL2, PCNA, RAD54 L, RFC4, RFC5, TK1, TOP2A, and TYMS in CC tissues were significantly different from those in the healthy tissues and were significantly relevant to the OS of CC. We found 10 small molecules from the CMAP database that could change the trend of gene expression in CC tissues, including piperlongumine and chrysin. CONCLUSIONS The 14 DEGs identified in this study could serve as novel prognosis biomarkers for the detection and forecasting of CC. Small molecule drugs like piperlongumine and chrysin could be potential therapeutic drugs for CC treatment.
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Affiliation(s)
- Hui-Zhu Qiu
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Ji Huang
- Department of Pharmacy, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Cheng-Cheng Xiang
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Rong Li
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Er-Dong Zuo
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Yuan Zhang
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Li Shan
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
| | - Xu Cheng
- Department of Hematology and Oncology, Soochow University Affiliated Taicang Hospital (The First People’s Hospital of Taicang), Jiangsu, China
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Hosseinipour M, Wan F, Altomare D, Creek KE, Pirisi L. HPV16-transformed human keratinocytes depend on SIX1 expression for proliferation and HPV E6/E7 gene expression. Virology 2019; 537:20-30. [PMID: 31425971 DOI: 10.1016/j.virol.2019.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 12/11/2022]
Abstract
The homeodomain transcription factor SIX1 plays a critical role in embryogenesis, is not expressed in normal adult tissue, but is expressed in many malignancies, including cervical cancer. SIX1 drives the progression of HPV16-immortalized human keratinocytes (HKc/HPV16) toward malignancy: HKc/HPV16 express high levels of SIX1 mRNA and protein; overexpression of SIX1 in HKc/HPV16 produces pre-malignant, differentiation-resistant lines (HKc/DR); SIX1 overexpression in HKc/DR induces tumorigenicity. In this paper, we explore the consequences of inhibition of SIX1 expression in premalignant HKc/DR. Only partial inhibition of SIX1 expression could be obtained in HKc/DR by RNA interference. Decreased SIX1 expression (up to 80%) in HKc/DR resulted in slower proliferation, decreased HPV16-E6/E7 mRNA levels, and increased p53 protein levels. Gene expression changes induced in HKc/DR by anti-SIX1 shRNA were indicative of mesenchymal-epithelial transition (MET) and changes in TGF-beta signaling. We conclude that HPV16-transformed cells depend on SIX1 for survival, HPV16 E6/E7 gene expression and epithelial-mesenchymal transition.
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Affiliation(s)
- Maria Hosseinipour
- Department of Pathology, Microbiology & Immunology, University of South Carolina School of Medicine at Columbia, Columbia, SC 29208, USA
| | - Fang Wan
- Department of Pathology, Microbiology & Immunology, University of South Carolina School of Medicine at Columbia, Columbia, SC 29208, USA; Inner Mongolia Agricultural University, Hohhot, Inner Mongolia, China
| | - Diego Altomare
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA
| | - Kim E Creek
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina College of Pharmacy, Columbia, SC, 29208, USA
| | - Lucia Pirisi
- Department of Pathology, Microbiology & Immunology, University of South Carolina School of Medicine at Columbia, Columbia, SC 29208, USA.
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Du J. Upregulation of sine oculis homeobox homolog 3 is associated with proliferation, invasion, migration, as well as poor prognosis of esophageal cancer. Anticancer Drugs 2019; 30:596-603. [PMID: 30672777 DOI: 10.1097/cad.0000000000000751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Esophageal cancer (EC) is a common cancer worldwide. Sine oculis homeobox homolog (SIX3) is a human transcription factor that regulates the progression of vertebrate eye and fetal forebrain. However, studies on the function of SIX3 in human tumorigenesis remain rare. In this study, we aim to evaluate the role and the significance of SIX3 in EC. The TCGA database and clinical samples were used to assess the expression of SIX3 in EC patients. The Kaplan-Meier method and Cox's proportional hazards model were performed to analyze the correlations between SIX3 expression and EC clinical outcomes. The expressions of SIX3 in EC cells were measured by quantitative reverse transcription PCR analysis. The cell proliferation was detected using cell counting kit-8 and colony formation assay. The migration and invasion capacity of EC cells were evaluated using wound healing and Transwell methods. Western blot assay was used to measure the alterations in some important protein expression levels in the PI3K/Akt signaling pathway. We found that SIX3 was highly expressed in the EC tissues and cells. In addition, high expression of SIX3 was related to poor survival. The knockdown of SIX3 significantly inhibited the proliferation, migration, and invasion of ECA109 cells. A similar pattern was also found in the proliferation and migration of SKGT-4 cell line. The expression levels of some key proteins in the PI3K/Akt signaling pathway were obviously decreased after cells were transfected with si-SIX3, possibly resulting in PI3K/AKT signaling inactivation. In addition, E-cadherin and N-cadherin showed some change. Collectively, the results shed light on a potentially promoting role of SIX3 in human EC. Thus, SIX3 might be considered a novel prognostic biomarker and therapeutic target for EC patients.
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Affiliation(s)
- Jie Du
- Department of Cardiothoracic Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, China
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35
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Zong S, Liu X, Zhou N, Yue Y. E2F7, EREG, miR-451a and miR-106b-5p are associated with the cervical cancer development. Arch Gynecol Obstet 2019; 299:1089-1098. [PMID: 30607582 DOI: 10.1007/s00404-018-5007-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 12/07/2018] [Indexed: 01/15/2023]
Abstract
PURPOSE We aimed to seek the crucial genes or microRNAs (miRNA) correlated with the cervical cancer development. METHODS The miRNA profiling GSE30656 and gene expression profiling GSE63514 were obtained from Gene Expression Omnibus database. Differentially expressed microRNAs (DEMiRs) and differentially expressed genes (DEGs) were screened. Then target genes of DEMiRs were obtained and matched with DEGs to obtain interaction pairs between DEMiRs and DEGs. Gene Ontology-biological process and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were conducted for DEGs and DEMiRs in the DEMiRs-DEGs pairs. The DEMiRs-DEGs regulatory network, protein-protein interaction network and transcription factor (TF)-target regulatory network were constructed. Ultimately, long non-coding RNAs (lncRNAs) associated with DEMiRs were obtained, and then lncRNA-miRNA-target ceRNA network was established. RESULTS Total 18 DEMiRs and 620 DEGs were identified. DEMiRs were enriched in 35 KEGG pathways, such as PI3K-Akt signaling pathway (involving miR-451a). DEGs were enriched in various functions, such as DNA replication (involving E2F7) and angiogenesis (involving EREG). There were 120 nodes and 216 interaction pairs in the DEMIR-DEG regulatory network, and miR-106b-5p has the greatest degree. EREG and E2F7 were regulated by miR-451a and miR-148a-3p, respectively. Besides, E2F7 was identified in the TF-target regulatory network, regulating CDC6. There were 15 lncRNAs, 11 miRNAs and 90 DEGs in the ceRNA network. Specially, miR-148a-3p was interacted with lncRNA HOTAIR in the ceRNA network. CONCLUSION E2F7, EREG, miR-451a and miR-106b-5p were likely to be related to the cervical cancer development.
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Affiliation(s)
- Shan Zong
- Department of Gynecology Oncology, The First Hospital of Jilin University, 71th Xinmin Road, Chang Chun, 130021, Jilin, China
| | - Xiaoxia Liu
- Department of Gynecology Oncology, The First Hospital of Jilin University, 71th Xinmin Road, Chang Chun, 130021, Jilin, China
| | - Na Zhou
- Department of Gynecology and Obstetric, The First Hospital of Jilin University, Chang Chun, 130021, Jilin, China
| | - Ying Yue
- Department of Gynecology Oncology, The First Hospital of Jilin University, 71th Xinmin Road, Chang Chun, 130021, Jilin, China.
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Kingsbury TJ, Kim M, Civin CI. Regulation of cancer stem cell properties by SIX1, a member of the PAX-SIX-EYA-DACH network. Adv Cancer Res 2019; 141:1-42. [PMID: 30691681 DOI: 10.1016/bs.acr.2018.12.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The PAX-SIX-EYA-DACH network (PSEDN) is a central developmental transcriptional regulatory network from Drosophila to humans. The PSEDN is comprised of four conserved protein families; including paired box (PAX), sine oculis (SIX), eyes absent (EYA), and dachshund (DACH). Aberrant expression of PSEDN members, particularly SIX1, has been observed in multiple human cancers, where SIX1 expression correlates with increased aggressiveness and poor prognosis. In conjunction with its transcriptional activator EYA, the SIX1 transcription factor increases cancer stem cell (CSC) numbers and induces epithelial-mesenchymal transition (EMT). SIX1 promotes multiple hallmarks and enabling characteristics of cancer via regulation of cell proliferation, senescence, apoptosis, genome stability, and energy metabolism. SIX1 also influences the tumor microenvironment, enhancing recruitment of tumor-associated macrophages and stimulating angiogenesis, to promote tumor development and progression. EYA proteins are multifunctional, possessing a transcriptional activation domain and tyrosine phosphatase activity, that each contributes to cancer stem cell properties. DACH proteins function as tumor suppressors in solid cancers, opposing the actions of SIX-EYA and reducing CSC prevalence. Multiple mechanisms can lead to increased SIX1 expression, including loss of SIX1-targeting tumor suppressor microRNAs (miRs), whose expression correlates inversely with SIX1 expression in cancer patient samples. In this review, we discuss the major mechanisms by which SIX1 confers CSC and EMT features and other important cancer cell characteristics. The roles of EYA and DACH in CSCs and cancer progression are briefly highlighted. Finally, we summarize the clinical significance of SIX1 in cancer to emphasize the potential therapeutic benefits of effective strategies to disrupt PSEDN protein interactions and functions.
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Lee WH, Chen LC, Lee CJ, Huang CC, Ho YS, Yang PS, Ho CT, Chang HL, Lin IH, Chang HW, Liu YR, Wu CH, Tu SH. DNA primase polypeptide 1 (PRIM1) involves in estrogen-induced breast cancer formation through activation of the G2/M cell cycle checkpoint. Int J Cancer 2018; 144:615-630. [PMID: 30097999 DOI: 10.1002/ijc.31788] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 07/24/2018] [Indexed: 12/22/2022]
Abstract
The DNA primase polypeptide 1 (PRIM1) is responsible for synthesizing small RNA primers for Okazaki fragments generated during discontinuous DNA replication. PRIM1 mRNA expression levels in breast tumor samples were detected by real-time PCR analysis. Xenografted tumor model was established to study the carcinogenic role of PRIM1 and its potential therapeutic applications. The average PRIM1 mRNA (copy number × 103 /μg) expression was 4.7-fold higher in tumors than in normal tissue (*p = 0.005, n = 254). PRIM1 was detected preferentially at a higher level (>40-fold) in poorly differentiated tumor tissues (n = 46) compared with more highly differentiated tumors tissues (n = 10) (*p = 0.005). Poor overall survival rate was correlated to the estrogen receptor positive (ER+, n = 20) patients with higher PRIM1 expression when compare to the ER- (n = 10) patients (Chi Square test, p = 0.03). Stable expression of PRIM1-siRNA in the ER+ BT-474 cells-xenograft tumors significantly reduced tumor volume in SCID mice (*p = 0.005). The anti-tumoral effects of inotilone isolated from Phellinus linteus was tested and had significant effects on the inhibition of PRIM1 protein expression in ER+ breast cancer cells. In vivo study was performed by administering inotilone (10 mg/kg, twice a week for 6 weeks), which resulted in significantly reduced BT-474-xenografted tumor growth volume compared with control (n =5 per group, *p < 0.05). This study provides evidences for the prognostic effects of PRIM1 with poor overall survival rate in the ER+ patients and will be valuable to test for therapeutic purpose.
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Affiliation(s)
- Wei-Hwa Lee
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City, Taiwan
| | - Li-Ching Chen
- Breast Medical Center, Taipei Medical University Hospital, Taipei, Taiwan.,Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan.,TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chia-Jung Lee
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chi-Cheng Huang
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,School of Medicine, College of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan.,Department of Surgery, Fu-Jen Catholic University Hospital, New Taipei City, Taiwan
| | - Yuan-Soon Ho
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Laboratory Medicine, Taipei Medical University Hospital, Taipei, Taiwan.,School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Po-Sheng Yang
- Department of Surgery, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ, USA
| | - Hang-Lung Chang
- Department of General Surgery, En Chu Kong Hospital, New Taipei City, Taiwan
| | - I-Hsuan Lin
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Chang
- Department of Laboratory Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Yun-Ru Liu
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan.,Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Chih-Hsiung Wu
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of General Surgery, En Chu Kong Hospital, New Taipei City, Taiwan
| | - Shih-Hsin Tu
- Breast Medical Center, Taipei Medical University Hospital, Taipei, Taiwan.,Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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38
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Zhou CF, Ma J, Huang L, Yi HY, Zhang YM, Wu XG, Yan RM, Liang L, Zhong M, Yu YH, Wu S, Wang W. Cervical squamous cell carcinoma-secreted exosomal miR-221-3p promotes lymphangiogenesis and lymphatic metastasis by targeting VASH1. Oncogene 2018; 38:1256-1268. [PMID: 30254211 PMCID: PMC6363643 DOI: 10.1038/s41388-018-0511-x] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 07/03/2018] [Accepted: 07/31/2018] [Indexed: 12/20/2022]
Abstract
Cancer-secreted exosomal miRNAs are emerging mediators of cancer-stromal cross-talk in the tumor environment. Our previous miRNAs array of cervical squamous cell carcinoma (CSCC) clinical specimens identified upregulation of miR-221-3p. Here, we show that miR-221-3p is closely correlated with peritumoral lymphangiogenesis and lymph node (LN) metastasis in CSCC. More importantly, miR-221-3p is characteristically enriched in and transferred by CSCC-secreted exosomes into human lymphatic endothelial cells (HLECs) to promote HLECs migration and tube formation in vitro, and facilitate lymphangiogenesis and LN metastasis in vivo according to both gain-of-function and loss-of-function experiments. Furthermore, we identify vasohibin-1 (VASH1) as a novel direct target of miR-221-3p through bioinformatic target prediction and luciferase reporter assay. Re-expression and knockdown of VASH1 could respectively rescue and simulate the effects induced by exosomal miR-221-3p. Importantly, the miR-221-3p-VASH1 axis activates the ERK/AKT pathway in HLECs independent of VEGF-C. Finally, circulating exosomal miR-221-3p levels also have biological function in promoting HLECs sprouting in vitro and are closely associated with tumor miR-221-3p expression, lymphatic VASH1 expression, lymphangiogenesis, and LN metastasis in CSCC patients. In conclusion, CSCC-secreted exosomal miR-221-3p transfers into HLECs to promote lymphangiogenesis and lymphatic metastasis via downregulation of VASH1 and may represent a novel diagnostic biomarker and therapeutic target for metastatic CSCC patients in early stages.
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Affiliation(s)
- Chen-Fei Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.,Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Jing Ma
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.,Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Lei Huang
- Institute of Cellular Medicine, Faculty of Medical Sciences, Framlington Place, Newcastle University, Newcastle-Upon-Tyne, NE2 4HH, UK
| | - Hong-Yan Yi
- Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Yan-Mei Zhang
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomic, Guangzhou, 510515, China
| | - Xiang-Guang Wu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Rui-Ming Yan
- Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Li Liang
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Mei Zhong
- Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Yan-Hong Yu
- Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Sha Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomic, Guangzhou, 510515, China.
| | - Wei Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China. .,Department of Obstetrics and Gynecology, Nanfang Hospital/The First School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China.
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van Dam PA, Rolfo C, Ruiz R, Pauwels P, Van Berckelaer C, Trinh XB, Ferri Gandia J, Bogers JP, Van Laere S. Potential new biomarkers for squamous carcinoma of the uterine cervix. ESMO Open 2018; 3:e000352. [PMID: 30018810 PMCID: PMC6045706 DOI: 10.1136/esmoopen-2018-000352] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 04/11/2018] [Accepted: 05/11/2018] [Indexed: 12/26/2022] Open
Abstract
Aim An in silico pathway analysis was performed in an attempt to identify new biomarkers for cervical carcinoma. Methods Three publicly available Affymetrix gene expression data sets (GSE5787, GSE7803, GSE9750) were retrieved, vouching for a total 9 cervical cancer cell lines, 39 normal cervical samples, 7 CIN3 samples and 111 cervical cancer samples. An Agilent data set (GSE7410; 5 normal cervical samples, 35 samples from invasive cervical cancer) was selected as a validation set. Predication analysis of microarrays was performed in the Affymetrix sets to identify cervical cancer biomarkers. We compared the lists of differentially expressed genes between normal and CIN3 samples on the one hand (n=1923) and between CIN3 and invasive cancer samples on the other hand (n=628). Results Seven probe sets were identified that were significantly overexpressed (at least 2 fold increase expression level, and false discovery rate <5%) in both CIN3 samples respective to normal samples and in cancer samples respective to CIN3 samples. From these, five probes sets could be validated in the Agilent data set (P<0.001) comparing the normal with the invasive cancer samples, corresponding to the genes DTL, HMGB3, KIF2C, NEK2 and RFC4. These genes were additionally overexpressed in cervical cancer cell lines respective to the cancer samples. The literature on these markers was reviewed. Conclusion Novel biomarkers in combination with primary human papilloma virus (HPV) testing may allow complete cervical screening by objective, non-morphological molecular methods, which may be particularly important in developing countries.
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Affiliation(s)
- Peter A van Dam
- Multidisciplinary Oncologic Centre Antwerp (MOCA), Antwerp University Hospita, Edegem, Belgium.,Centre of Oncologic Research (CORE) Antwerp University, Edegem, Belgium
| | - Christian Rolfo
- Multidisciplinary Oncologic Centre Antwerp (MOCA), Antwerp University Hospita, Edegem, Belgium.,Centre of Oncologic Research (CORE) Antwerp University, Edegem, Belgium.,Fase 1 Unit for Experimental Oncology, Antwerp University Hospital, Edegem, Belgium
| | - Rossana Ruiz
- Department of Medical Oncology, Instituto Nacional de Enfermedades Neoplásicas (INEN), Lima, Peru
| | - Patrick Pauwels
- Centre of Oncologic Research (CORE) Antwerp University, Edegem, Belgium.,Department of Histopathology, Antwerp University Hospital, Edegem, Belgium
| | | | - Xuan Bich Trinh
- Multidisciplinary Oncologic Centre Antwerp (MOCA), Antwerp University Hospita, Edegem, Belgium.,Centre of Oncologic Research (CORE) Antwerp University, Edegem, Belgium
| | - Jose Ferri Gandia
- Fase 1 Unit for Experimental Oncology, Antwerp University Hospital, Edegem, Belgium
| | - Johannes P Bogers
- AMBIOR Laboratory of Cell Biology and Histology, Antwerp University, Antwerp, Belgium
| | - Steven Van Laere
- Centre of Oncologic Research (CORE) Antwerp University, Edegem, Belgium
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40
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Cava C, Bertoli G, Colaprico A, Olsen C, Bontempi G, Castiglioni I. Integration of multiple networks and pathways identifies cancer driver genes in pan-cancer analysis. BMC Genomics 2018; 19:25. [PMID: 29304754 PMCID: PMC5756345 DOI: 10.1186/s12864-017-4423-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 12/27/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Modern high-throughput genomic technologies represent a comprehensive hallmark of molecular changes in pan-cancer studies. Although different cancer gene signatures have been revealed, the mechanism of tumourigenesis has yet to be completely understood. Pathways and networks are important tools to explain the role of genes in functional genomic studies. However, few methods consider the functional non-equal roles of genes in pathways and the complex gene-gene interactions in a network. RESULTS We present a novel method in pan-cancer analysis that identifies de-regulated genes with a functional role by integrating pathway and network data. A pan-cancer analysis of 7158 tumour/normal samples from 16 cancer types identified 895 genes with a central role in pathways and de-regulated in cancer. Comparing our approach with 15 current tools that identify cancer driver genes, we found that 35.6% of the 895 genes identified by our method have been found as cancer driver genes with at least 2/15 tools. Finally, we applied a machine learning algorithm on 16 independent GEO cancer datasets to validate the diagnostic role of cancer driver genes for each cancer. We obtained a list of the top-ten cancer driver genes for each cancer considered in this study. CONCLUSIONS Our analysis 1) confirmed that there are several known cancer driver genes in common among different types of cancer, 2) highlighted that cancer driver genes are able to regulate crucial pathways.
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Affiliation(s)
- Claudia Cava
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Via F.Cervi 93, 20090 Milan, Segrate-Milan Italy
| | - Gloria Bertoli
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Via F.Cervi 93, 20090 Milan, Segrate-Milan Italy
| | - Antonio Colaprico
- Interuniversity Institute of Bioinformatics in Brussels (IB)2, 1050 Brussels, Belgium
- Machine Learning Group (MLG), Department d’Informatique, Universite libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - Catharina Olsen
- Interuniversity Institute of Bioinformatics in Brussels (IB)2, 1050 Brussels, Belgium
- Machine Learning Group (MLG), Department d’Informatique, Universite libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - Gianluca Bontempi
- Interuniversity Institute of Bioinformatics in Brussels (IB)2, 1050 Brussels, Belgium
- Machine Learning Group (MLG), Department d’Informatique, Universite libre de Bruxelles (ULB), 1050 Brussels, Belgium
| | - Isabella Castiglioni
- Institute of Molecular Bioimaging and Physiology, National Research Council (IBFM-CNR), Via F.Cervi 93, 20090 Milan, Segrate-Milan Italy
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41
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Siyu G, Linqing Z, Linling K, Hong L, Guoqi S, Cho WC. Long noncoding RNA identification in lymphoma. Future Oncol 2017; 13:2479-2487. [PMID: 29121780 DOI: 10.2217/fon-2017-0230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
It has been found that long noncoding RNA (lncRNA) are abnormally expressed in lymphoma and play an important role in its pathogenesis. Through the detection and analysis of lncRNA, it was found that lncRNA could be used as an excellent biomarker for the diagnosis and prognosis of cancer. In lymphoma, abnormal lncRNA expression is associated with the patient's clinical characteristics, it can be used to determine the prognosis of the patient and serve as a therapeutic target in the disease.
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Affiliation(s)
- Gu Siyu
- Department of Medicine, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Zou Linqing
- Department of Human Anatomy, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Kong Linling
- Department of Medicine, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Liu Hong
- Department of Medicine, Nantong University, Nantong, Jiangsu 226001, PR China
| | - Song Guoqi
- Department of Medicine, Nantong University, Nantong, Jiangsu 226001, PR China
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Block R, 30 Gascoigne Road, Hong Kong, PR China
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Lin W, Feng M, Li X, Zhong P, Guo A, Chen G, Xu Q, Ye Y. Transcriptome profiling of cancer and normal tissues from cervical squamous cancer patients by deep sequencing. Mol Med Rep 2017; 16:2075-2088. [PMID: 28656315 PMCID: PMC5562054 DOI: 10.3892/mmr.2017.6855] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 04/04/2017] [Indexed: 12/29/2022] Open
Abstract
Cervical cancer is the fourth leading cause of cancer mortality in women worldwide. High‑risk human papillomavirus infection is a major cause of cervical cancer. A previous study revealed the role of different oncogenes and tumor suppressors in cervical cancer initiation and progression. However, the complicated genetic network regulating cervical cancer remains largely unknown. The present study reported transcriptome sequencing analysis of three cervical squamous cell cancer tissues and paired normal cervical tissues. Transcriptomic analysis revealed that 2,519 genes were differently expressed between cervical cancer tissues and their corresponding normal tissues. Among these, 236 differentially expressed genes (DEGs) were statistically significant, including many DEGs that were novel in cervical cancer, including gastrulation brain homeobox 2,5‑hydroxytryptamine receptor 1D and endothelin 3. These 236 significant DEGs were highly enriched in 28 functional gene ontology categories. The Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis suggested involvement of these DEGs in multiple pathways. The present study provides a transcriptome landscape of cervical cancer in Chinese patients and an improved understanding of the genetic regulatory network in cervical cancer tumorigenesis.
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Affiliation(s)
- Wansong Lin
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Mei Feng
- Department of Gynecologic Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Xiuhua Li
- Department of Gynecologic Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Peilin Zhong
- Department of Gynecologic Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Aihua Guo
- Department of Gynecologic Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Guilin Chen
- Department of Gynecologic Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Qin Xu
- Department of Gynecologic Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
| | - Yunbin Ye
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
- Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian 350014, P.R. China
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Chen L, Zhang YH, Lu G, Huang T, Cai YD. Analysis of cancer-related lncRNAs using gene ontology and KEGG pathways. Artif Intell Med 2017; 76:27-36. [PMID: 28363286 DOI: 10.1016/j.artmed.2017.02.001] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/31/2017] [Accepted: 02/05/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Cancer is a disease that involves abnormal cell growth and can invade or metastasize to other tissues. It is known that several factors are related to its initiation, proliferation, and invasiveness. Recently, it has been reported that long non-coding RNAs (lncRNAs) can participate in specific functional pathways and further regulate the biological function of cancer cells. Studies on lncRNAs are therefore helpful for uncovering the underlying mechanisms of cancer biological processes. METHODS We investigated cancer-related lncRNAs using gene ontology (GO) terms and KEGG pathway enrichment scores of neighboring genes that are co-expressed with the lncRNAs by extracting important GO terms and KEGG pathways that can help us identify cancer-related lncRNAs. The enrichment theory of GO terms and KEGG pathways was adopted to encode each lncRNA. Then, feature selection methods were employed to analyze these features and obtain the key GO terms and KEGG pathways. RESULTS The analysis indicated that the extracted GO terms and KEGG pathways are closely related to several cancer associated processes, such as hormone associated pathways, energy associated pathways, and ribosome associated pathways. And they can accurately predict cancer-related lncRNAs. CONCLUSIONS This study provided novel insight of how lncRNAs may affect tumorigenesis and which pathways may play important roles during it. These results could help understanding the biological mechanisms of lncRNAs and treating cancer.
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Affiliation(s)
- Lei Chen
- School of Life Sciences, Shanghai University, Shanghai 200444, People's Republic of China; College of Information Engineering, Shanghai Maritime University, Shanghai 201306, People's Republic of China.
| | - Yu-Hang Zhang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200025, People's Republic of China.
| | - Guohui Lu
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, People's Republic of China.
| | - Tao Huang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200025, People's Republic of China.
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai 200444, People's Republic of China.
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Zhang X, Liu D, Li M, Cao C, Wan D, Xi B, Li W, Tan J, Wang J, Wu Z, Ma D, Gao Q. Prognostic and therapeutic value of disruptor of telomeric silencing-1-like (DOT1L) expression in patients with ovarian cancer. J Hematol Oncol 2017; 10:29. [PMID: 28114995 PMCID: PMC5259947 DOI: 10.1186/s13045-017-0400-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/13/2017] [Indexed: 01/07/2023] Open
Abstract
Background Epigenetics has been known to play a critical role in regulating the malignant phenotype. This study was designed to examine the expression of DOT1L (histone 3 lysine 79 methyltransferase) and H3K79 methylation in normal ovarian tissues and ovarian tumors and to explore the function of DOT1L and its underline mechanisms in ovarian cancer. Methods The expression of DOT1L and H3K79 methylation in 250 ovarian tumor samples and 24 normal ovarian samples was assessed by immunohistochemistry. The effects of DOT1L on cell proliferation in vitro were evaluated using CCK8, colony formation and flow cytometry. The DOT1L-targeted genes were determined using chromatin immune-precipitation coupled with high-throughput sequencing (ChIP-seq) and ChIP-PCR. Gene expression levels were measured by real-time PCR and immunoblotting. The effects of DOT1L on tumor growth in vivo were evaluated using an orthotopic ovarian tumor model. Results DOT1L expression and H3K79 methylation was significantly increased in malignant ovarian tumors. High DOT1L expression was associated with International Federation of Gynecology and Obstetrics (FIGO) stage, histologic grade, and lymphatic metastasis. DOT1L was an independent prognostic factor for the overall survival (OS) and progression-free survival (PFS) of ovarian cancer, and higher DOT1L expression was associated with poorer OS and PFS. Furthermore, DOT1L regulates the transcription of G1 phase genes CDK6 and CCND3 through H3K79 dimethylation; therefore, blocking DOT1L could result in G1 arrest and thereby impede the cell proliferation in vitro and tumor growth in vivo. Conclusions Our findings first demonstrate that DOT1L over-expression has important clinical significance in ovarian cancer and also clarify that it drives cell cycle progression through transcriptional regulation of CDK6 and CCND3 through H3K79 methylation, suggesting that DOT1L might be potential target for prognostic assessment and therapeutic intervention in ovarian cancer. Electronic supplementary material The online version of this article (doi:10.1186/s13045-017-0400-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiaoxue Zhang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Dan Liu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Mengchen Li
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Canhui Cao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Dongyi Wan
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Bixin Xi
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Wenqian Li
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Jiahong Tan
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Ji Wang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zhongcai Wu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Ding Ma
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Qinglei Gao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
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Yang ZC, Yi MJ, Shan YC, Wang C, Ran N, Jin LY, Fu P, Feng XY, Xu L, Qu ZH. Targeted inhibition of Six1 attenuates allergic airway inflammation and remodeling in asthmatic mice. Biomed Pharmacother 2016; 84:1820-1825. [PMID: 27847210 DOI: 10.1016/j.biopha.2016.10.090] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 10/24/2016] [Accepted: 10/30/2016] [Indexed: 11/29/2022] Open
Abstract
Asthma is an inflammatory disease of the airways, characterized by lung eosinophilia, mucus hypersecretion by goblet cells and airway hyperresponsiveness to inhaled allergens. The purpose of this study was to evaluate the effects of Six1 on airway inflammation and remodeling and the underlying mechanisms in a murine model of chronic asthma. Female BALB/c mice were randomly divided into four groups: phosphate-buffered saline control, ovalbumin (OVA)-induced asthma group, OVA+siNC and OVA+siSix1. In this mice model, Six1 expression level was significantly elevated in OVA-induced asthma of mice. Additionally, downregulation of Six1 dramatically decreased OVA-challenged inflammation, infiltration, and mucus production. Moreover, silencing of Six1 resulted in decreased levels of immunoglobulin E and inflammatory mediators and reduced inflammatory cell accumulation, as well as inhibiting the expression of important mediators including matrix metalloproteinase MMP-2 and MMP-9, which is related to airway remodeling. Further analysis indicated that silencing of Six1 can significantly inhibit NF-kB pathway activation in the lungs. .In conclusion, these findings indicated that the downregulation of Six1 effectively inhibited airway inflammation and reversed airway remodeling, which suggest that Six1 represents a promising therapeutic strategy for human allergic asthma.
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Affiliation(s)
- Zhao-Chuan Yang
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Ming-Ji Yi
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Yan-Chun Shan
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Chong Wang
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Ni Ran
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Li-Ying Jin
- Cerebrovascular Disease Research Institute, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Peng Fu
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Xue-Ying Feng
- Department of Child Health Care, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Lei Xu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China
| | - Zheng-Hai Qu
- Department of Pediatrics, The Affiliated Hospital of Qingdao University, Qingdao 266003, PR China.
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Wei JC, Yang J, Liu D, Wu MF, Qiao L, Wang JN, Ma QF, Zeng Z, Ye SM, Guo ES, Jiang XF, You LY, Chen Y, Zhou L, Huang XY, Zhu T, Meng L, Zhou JF, Feng ZH, Ma D, Gao QL. Tumor-associated Lymphatic Endothelial Cells Promote Lymphatic Metastasis By Highly Expressing and Secreting SEMA4C. Clin Cancer Res 2016; 23:214-224. [PMID: 27401250 DOI: 10.1158/1078-0432.ccr-16-0741] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/25/2016] [Accepted: 06/29/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE Lymphatic vessels are mainly regarded as passive conduits for the dissemination of cancer cells. In this study, we investigate whether and how the tumor-associated lymphatic vessels may play an active role in tumor metastasis. EXPERIMENTAL DESIGN In situ laser capture microdissection of lymphatic vessels followed by cDNA microarray analysis was used to determine the expression profiling of lymphatic endothelial cells (LEC). Gene expression levels and activity of signaling pathways were measured by real-time RT-PCR, ELISA, or immunoblotting. Lymphangiogenesis was assessed by IHC. Lymph node metastasis was measured using fluorescence imaging. The effects of SEMA4C on lymphangiogenesis in vitro were evaluated using migration assay and tube-formation assay of LECs. RESULTS Tumor-associated LECs are molecularly and functionally different from their normal counterparts. In addition to expressing high levels of membrane-bound SEMA4C, tumor-associated LECs also produced soluble SEMA4C (sSEMA4C). Increased serum sSEMA4C was detected in patients with breast cancer and cervical cancer. Patients with metastasis had much higher levels of serum sSEMA4C. sSEMA4C promoted lymphangiogenesis by activating PlexinB2-ERBB2 signaling in LECs, and promoted the proliferation and migration of tumor cells by activating PlexinB2-MET signaling, thus promoting lymphatic metastasis. Although the SEMA4C signaling pathways differ between LECs and tumor cells, RHOA activation was necessary for the effects of SEMA4C in both types of cells. CONCLUSIONS Tumor-associated LECs produce sSEMA4C to promote lymphatic metastasis of tumors. Our results suggest that SEMA4C and RHOA might be potential therapeutic targets, and that higher serum sSEMA4C could be a marker for breast cancer and cervical cancer. Clin Cancer Res; 23(1); 214-24. ©2016 AACR.
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Affiliation(s)
- Jun-Cheng Wei
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Jie Yang
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Dan Liu
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Ming-Fu Wu
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Long Qiao
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Jun-Nai Wang
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Quan-Fu Ma
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Zhen Zeng
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Shuang-Mei Ye
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - En-Song Guo
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Xue-Feng Jiang
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Lan-Ying You
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Ying Chen
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Li Zhou
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Xiao-Yuan Huang
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Tao Zhu
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Li Meng
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Jian-Feng Zhou
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Zuo-Hua Feng
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ding Ma
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.
| | - Qing-Lei Gao
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.
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Sun SH, Liu D, Deng YT, Zhang XX, Wan DY, Xi BX, Huang W, Chen Q, Li MC, Wang MW, Yang F, Shu P, Wu KZ, Gao QL. SIX1 coordinates with TGFβ signals to induce epithelial-mesenchymal transition in cervical cancer. Oncol Lett 2016; 12:1271-1278. [PMID: 27446426 PMCID: PMC4950046 DOI: 10.3892/ol.2016.4797] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 03/04/2016] [Indexed: 12/15/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) plays a critical role in promoting tumor invasion and metastasis. However, the key cofactors that modulate the signal transduction to induce EMT have note been fully explored to date. The present study reports that sine oculis homeobox homolog 1 (SIX1) is able to promote EMT of cervical cancer by coordinating with transforming growth factor (TGF)β-SMAD signals. The expression of SIX1 was negatively correlated with the expression of the epithelial marker E-cadherin in two independent groups of cervical cancer specimens. SIX1 could promote the transition of mesenchymal phenotype in the presence of active TGFβ signals in vitro and in vivo. TGFβ-SMAD signals were required for the SIX1-mediated promotion of EMT and metastatic capacity of cervical cancer cells. Together, SIX1 and TGFβ cooperated to induce more remarkable changes in the transition of phenotype than each of them alone, and coordinated to promote cell motility and tumor metastasis in cervical cancer. These results suggest that the coordination of SIX1 and TGFβ signals may be crucial in the EMT program, and that SIX1/TGFβ may be considered a valuable marker for evaluating the metastatic potential of cervical cancer cells, or a therapeutic target in the treatment of cervical cancer.
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Affiliation(s)
- Shu-Hua Sun
- Department of Gynecologic Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Dan Liu
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Yun-Te Deng
- Department of Pathology, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Xiao-Xue Zhang
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Dong-Yi Wan
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Bi-Xin Xi
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Wei Huang
- Department of Gynecologic Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Qian Chen
- Department of Gynecologic Oncology, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Meng-Chen Li
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
| | - Ming-Wei Wang
- Department of Pathology, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Fei Yang
- Department of Pathology, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Ping Shu
- Department of Medical Records Room, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Ke-Zhi Wu
- Department of Medical Records Room, Hubei Cancer Hospital, Wuhan, Hubei 430023, P.R. China
| | - Qing-Lei Gao
- Cancer Biology Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P.R. China
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Deng SP, Zhu L, Huang DS. Predicting Hub Genes Associated with Cervical Cancer through Gene Co-Expression Networks. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2016; 13:27-35. [PMID: 26415208 DOI: 10.1109/tcbb.2015.2476790] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cervical cancer is the third most common malignancy in women worldwide. It remains a leading cause of cancer-related death for women in developing countries. In order to contribute to the treatment of the cervical cancer, in our work, we try to find a few key genes resulting in the cervical cancer. Employing functions of several bioinformatics tools, we selected 143 differentially expressed genes (DEGs) associated with the cervical cancer. The results of bioinformatics analysis show that these DEGs play important roles in the development of cervical cancer. Through comparing two differential co-expression networks (DCNs) at two different states, we found a common sub-network and two differential sub-networks as well as some hub genes in three sub-networks. Moreover, some of the hub genes have been reported to be related to the cervical cancer. Those hub genes were analyzed from Gene Ontology function enrichment, pathway enrichment and protein binding three aspects. The results can help us understand the development of the cervical cancer and guide further experiments about the cervical cancer.
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MINCR is a MYC-induced lncRNA able to modulate MYC's transcriptional network in Burkitt lymphoma cells. Proc Natl Acad Sci U S A 2015; 112:E5261-70. [PMID: 26351698 DOI: 10.1073/pnas.1505753112] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Despite the established role of the transcription factor MYC in cancer, little is known about the impact of a new class of transcriptional regulators, the long noncoding RNAs (lncRNAs), on MYC ability to influence the cellular transcriptome. Here, we have intersected RNA-sequencing data from two MYC-inducible cell lines and a cohort of 91 B-cell lymphomas with or without genetic variants resulting in MYC overexpression. We identified 13 lncRNAs differentially expressed in IG-MYC-positive Burkitt lymphoma and regulated in the same direction by MYC in the model cell lines. Among them, we focused on a lncRNA that we named MYC-induced long noncoding RNA (MINCR), showing a strong correlation with MYC expression in MYC-positive lymphomas. To understand its cellular role, we performed RNAi and found that MINCR knockdown is associated with an impairment in cell cycle progression. Differential gene expression analysis after RNAi showed a significant enrichment of cell cycle genes among the genes down-regulated after MINCR knockdown. Interestingly, these genes are enriched in MYC binding sites in their promoters, suggesting that MINCR acts as a modulator of the MYC transcriptional program. Accordingly, MINCR knockdown was associated with a reduction in MYC binding to the promoters of selected cell cycle genes. Finally, we show that down-regulation of Aurora kinases A and B and chromatin licensing and DNA replication factor 1 may explain the reduction in cellular proliferation observed on MINCR knockdown. We, therefore, suggest that MINCR is a newly identified player in the MYC transcriptional network able to control the expression of cell cycle genes.
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