1
|
Erdem M, Lee KH, Hardt M, Regan JL, Kobelt D, Walther W, Mokrizkij M, Regenbrecht C, Stein U. MACC1 Regulates LGR5 to Promote Cancer Stem Cell Properties in Colorectal Cancer. Cancers (Basel) 2024; 16:604. [PMID: 38339354 PMCID: PMC10854991 DOI: 10.3390/cancers16030604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 01/18/2024] [Accepted: 01/20/2024] [Indexed: 02/12/2024] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer-related deaths worldwide. The high mortality is directly associated with metastatic disease, which is thought to be initiated by colon cancer stem cells, according to the cancer stem cell (CSC) model. Consequently, early identification of those patients who are at high risk for metastasis is crucial for improved treatment and patient outcomes. Metastasis-associated in colon cancer 1 (MACC1) is a novel prognostic biomarker for tumor progression and metastasis formation independent of tumor stage. We previously showed an involvement of MACC1 in cancer stemness in the mouse intestine of our MACC1 transgenic mouse models. However, the expression of MACC1 in human CSCs and possible implications remain elusive. Here, we explored the molecular mechanisms by which MACC1 regulates stemness and the CSC-associated invasive phenotype based on patient-derived tumor organoids (PDOs), patient-derived xenografts (PDXs) and human CRC cell lines. We showed that CD44-enriched CSCs from PDO models express significantly higher levels of MACC1 and LGR5 and display higher tumorigenicity in immunocompromised mice. Similarly, RNA sequencing performed on PDO and PDX models demonstrated significantly increased MACC1 expression in ALDH1(+) CSCs, highlighting its involvement in cancer stemness. We further showed the correlation of MACC1 with the CSC markers CD44, NANOG and LGR5 in PDO models as well as established cell lines. Additionally, MACC1 increased stem cell gene expression, clonogenicity and sphere formation. Strikingly, we showed that MACC1 binds as a transcription factor to the LGR5 gene promoter, uncovering the long-known CSC marker LGR5 as a novel essential signaling mediator employed by MACC1 to induce CSC-like properties in human CRC patients. Our in vitro findings were further substantiated by a significant positive correlation of MACC1 with LGR5 in CRC cell lines as well as CRC patient tumors. Taken together, this study indicates that the metastasis inducer MACC1 acts as a cancer stem cell-associated marker. Interventional approaches targeting MACC1 would potentially improve further targeted therapies for colorectal cancer patients to eradicate CSCs and prevent cancer recurrence and distant metastasis formation.
Collapse
Affiliation(s)
- Müge Erdem
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
| | - Kyung Hwan Lee
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
| | - Markus Hardt
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
| | - Joseph L. Regan
- Bayer AG, Research and Development, Pharmaceuticals, 13342 Berlin, Germany
- JLR Life Sciences Ltd., A96 A8D5 Dublin, Ireland
| | - Dennis Kobelt
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
- German Cancer Consortium, 69120 Heidelberg, Germany
| | - Wolfgang Walther
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
| | - Margarita Mokrizkij
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
| | | | - Ulrike Stein
- Experimental and Clinical Research Center, Charité—Universitätsmedizin Berlin and Max-Delbrück-Center for Molecular Medicine, Translational Oncology of Solid Tumors Research Group, 13125 Berlin, Germany (D.K.)
- German Cancer Consortium, 69120 Heidelberg, Germany
| |
Collapse
|
2
|
Wei Y, Li Y, Chen Y, Liu P, Huang S, Zhang Y, Sun Y, Wu Z, Hu M, Wu Q, Wu H, Liu F, She T, Ning Z. ALDH1: A potential therapeutic target for cancer stem cells in solid tumors. Front Oncol 2022; 12:1026278. [PMID: 36387165 PMCID: PMC9650078 DOI: 10.3389/fonc.2022.1026278] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/12/2022] [Indexed: 12/02/2022] Open
Abstract
Solid tumors can be divided into benign solid tumors and solid malignant tumors in the academic community, among which malignant solid tumors are called cancers. Cancer is the second leading cause of death in the world, and the global incidence of cancer is increasing yearly New cancer patients in China are always the first. After the concept of stem cells was introduced in the tumor community, the CSC markers represented by ALDH1 have been widely studied due to their strong CSC cell characteristics and potential to be the driving force of tumor metastasis. In the research results in the past five years, it has been found that ALDH1 is highly expressed in various solid cancers such as breast cancer, lung cancer, colorectal cancer, liver cancer, gastric cancer, cervical cancer, esophageal cancer, ovarian cancer, head,and neck cancer. ALDH1 can activate and transform various pathways (such as the USP28/MYC signaling pathway, ALDH1A1/HIF-1α/VEGF axis, wnt/β-catenin signaling pathway), as well as change the intracellular pH value to promote formation and maintenance, resulting in drug resistance in tumors. By targeting and inhibiting ALDH1 in tumor stem cells, it can enhance the sensitivity of drugs and inhibit the proliferation, differentiation, and metastasis of solid tumor stem cells to some extent. This review discusses the relationship and pathway of ALDH1 with various solid tumors. It proposes that ALDH1 may serve as a diagnosis and therapeutic target for CSC, providing new insights and new strategies for reliable tumor treatment.
Collapse
Affiliation(s)
- Yaolu Wei
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Yan Li
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Yenan Chen
- Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Pei Liu
- Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Sheng Huang
- Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Yuping Zhang
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Yanling Sun
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Zhe Wu
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Meichun Hu
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Qian Wu
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Hongnian Wu
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
| | - Fuxing Liu
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
- *Correspondence: Fuxing Liu, ; Tonghui She, ; Zhifeng Ning,
| | - Tonghui She
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
- *Correspondence: Fuxing Liu, ; Tonghui She, ; Zhifeng Ning,
| | - Zhifeng Ning
- School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning, China
- *Correspondence: Fuxing Liu, ; Tonghui She, ; Zhifeng Ning,
| |
Collapse
|
3
|
Long Noncoding RNA CRNDE Functions as an Oncogene to Facilitate Aggressive Behaviors of Nasopharyngeal Carcinoma Cells by Modulating miR-3163/TWIST1 Axis. Mol Biotechnol 2021; 64:463-471. [PMID: 34796452 DOI: 10.1007/s12033-021-00425-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/08/2021] [Indexed: 12/09/2022]
Abstract
Long noncoding RNA (lncRNA) CRNDE has been broadly implicated in many malignancies. The aim of this study was to explore the function and potential mechanisms of CRNDE in nasopharyngeal carcinoma (NPC). Here, we discovered that CRNDE level was increased in NPC tissues and cell lines. Additionally, elevated CRNDE positively correlated with large tumor size, advanced TNM stage, distant metastasis, EBV infection and worse prognosis. Furthermore, depletion of CRNDE significantly impaired the capacity of proliferation, migration and invasion in NPC cells. Mechanically, CRNDE could serve as a molecular sponge of miR-3163 to regulate the expression of TWIST1. Importantly, the inhibitory effects of CRNDE knockdown on cell proliferation and metastasis were blocked by silence of miR-3163 or restoration of TWIST1 expression. Overall, our data highlighted that CRNDE could promote NPC progression via altering miR-3163/TWIST1 axis, suggesting CRNDE as a potential prognostic biomarker and therapeutic target for NPC treatment.
Collapse
|
4
|
Yang A, Liu X, Liu P, Feng Y, Liu H, Gao S, Huo L, Han X, Wang J, Kong W. LncRNA UCA1 promotes development of gastric cancer via the miR-145/MYO6 axis. Cell Mol Biol Lett 2021; 26:33. [PMID: 34238213 PMCID: PMC8268585 DOI: 10.1186/s11658-021-00275-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Background Long noncoding RNA (lncRNA), urothelial carcinoma-associated 1 (UCA1) is aberrantly expressed in multiple cancers and has been verified as an oncogene. However, the underlying mechanism of UCA1 in the development of gastric cancer is not fully understood. In the present study, we aimed to identify how UCA1 promotes gastric cancer development. Methods The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) data were used to analyze UCA1 and myosin VI (MYO6) expression in gastric cancer. Western blot and quantitative real-time PCR (QPCR) were performed to test the expression level of the UCA1/miR-145/MYO6 axis in gastric cancer cell lines and tissues. The roles of the UCA1/miR-145/MYO6 axis in gastric cancer in vitro and in vivo were investigated by CCK-8 assay, flow cytometry, siRNAs, immunohistochemistry, and a mouse xenograft model. The targeted relationship among UCA1, miR-145, and MYO6 was predicted using LncBase Predicted v.2 and TargetScan online software, and then verified by luciferase activity assay and RNA immunoprecipitation. Results UCA1 expression was higher but miR-145 expression was lower in gastric cancer cell lines or tissues, compared to the adjacent normal cell line or normal tissues. Function analysis verified that UCA1 promoted cell proliferation and inhibited cell apoptosis in the gastric cancer cells in vitro and in vivo. Mechanistically, UCA1 could bind directly to miR-145, and MYO6 was found to be a downstream target gene of miR-145. miR-145 mimics or MYO6 siRNAs could partly reverse the effect of UCA1 on gastric cancer cells. Conclusions UCA1 accelerated cell proliferation and inhibited cell apoptosis through sponging miR-145 to upregulate MYO6 expression in gastric cancer, indicating that the UCA1/miR-145/MYO6 axis may serve as a potential therapeutic target for gastric cancer.
Collapse
Affiliation(s)
- An Yang
- Handan Central Hospital, Handan, 056001, Hebei Province, China
| | - Xin Liu
- Affiliated Hospital of Hebei University of Engineering, Handan, 056002, Hebei Province, China
| | - Ping Liu
- Handan Central Hospital, Handan, 056001, Hebei Province, China
| | - Yunzhang Feng
- Handan Central Hospital, Handan, 056001, Hebei Province, China
| | - Hongbo Liu
- Handan Central Hospital, Handan, 056001, Hebei Province, China
| | - Shen Gao
- Handan First Hospital, Handan, 056002, Hebei Province, China
| | - Limin Huo
- Handan First Hospital, Handan, 056002, Hebei Province, China
| | - Xinyan Han
- Handan Central Hospital, Handan, 056001, Hebei Province, China
| | - Jurong Wang
- Handan Central Hospital, Handan, 056001, Hebei Province, China
| | - Wei Kong
- Handan Central Hospital, Handan, 056001, Hebei Province, China.
| |
Collapse
|
5
|
Farooqi AA, Nayyab S, Martinelli C, Berardi R, Katifelis H, Gazouli M, Cho WC. Regulation of Hippo, TGFβ/SMAD, Wnt/ β-Catenin, JAK/STAT, and NOTCH by Long Non-Coding RNAs in Pancreatic Cancer. Front Oncol 2021; 11:657965. [PMID: 34178644 PMCID: PMC8220219 DOI: 10.3389/fonc.2021.657965] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/23/2021] [Indexed: 12/12/2022] Open
Abstract
Rapidly evolving and ever-increasing knowledge of the molecular pathophysiology of pancreatic cancer has leveraged our understanding altogether to a next level. Compared to the exciting ground-breaking discoveries related to underlying mechanisms of pancreatic cancer onset and progression, however, there had been relatively few advances in the therapeutic options available for the treatment. Since the discovery of the DNA structure as a helix which replicates semi-conservatively to pass the genetic material to the progeny, there has been conceptual refinement and continuous addition of missing pieces to complete the landscape of central dogma. Starting from transcription to translation, modern era has witnessed non-coding RNA discovery and central role of these versatile regulators in onset and progression of pancreatic cancer. Long non-coding RNAs (lncRNAs) have been shown to act as competitive endogenous RNAs through sequestration and competitive binding to myriad of microRNAs in different cancers. In this article, we set spotlight on emerging evidence of regulation of different signaling pathways (Hippo, TGFβ/SMAD, Wnt/β-Catenin, JAK/STAT and NOTCH) by lncRNAs. Conceptual refinements have enabled us to understand how lncRNAs play central role in post-translational modifications of various proteins and how lncRNAs work with epigenetic-associated machinery to transcriptionally regulate gene network in pancreatic cancer.
Collapse
Affiliation(s)
| | - Sawera Nayyab
- Department of Biotechnology, Faculty of Science, University of Sialkot, Sialkot, Pakistan
| | | | - Rossana Berardi
- Università Politecnica delle Marche-Ospedali Riuniti Ancona, Ancona, Italy
| | - Hector Katifelis
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Gazouli
- Laboratory of Biology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, China
| |
Collapse
|
6
|
Wu B, Yang C, Fang Y, Ding W, Zhang Y. Long noncoding RNA DUXAP10 promotes the stemness of glioma cells by recruiting HuR to enhance Sox12 mRNA stability. ENVIRONMENTAL TOXICOLOGY 2021; 36:840-849. [PMID: 33340249 DOI: 10.1002/tox.23087] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Long noncoding RNA (lncRNA) DUXAP10 has been shown to act as an oncogene in various tumors; however, its roles in glioma progression have never been established. Here, we show that DUXAP10 is overexpressed in glioma tissues and cells. Loss of function experiments reveal that DUXAP10 knockdown has little effects on glioma cell viability, but significantly reduces the stemness of glioma cells, which is characterized as the decrease of stemness marker expression, tumor sphere-forming ability, and ALDH activity. RNA immunoprecipitation and immunofluorescence assays indicate that DUXAP10 can directly interact with HuR protein and suppress the cytoplasm-nuclear translocation of HuR, which subsequently enhances Sox12 mRNA stability in cytoplasm and thus increases Sox12 expression. Further rescuing experiments show that the HuR/Sox12 axis is responsible for DUXAP10-mediated effects on glioma cell stemness.
Collapse
Affiliation(s)
- Bolin Wu
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Chengyou Yang
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yuefeng Fang
- International College, Guangdong University of Foreign Studies, Guangzhou, China
| | - Weilong Ding
- Department of Neurosurgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yuqing Zhang
- Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
7
|
Teng F, Zhang J, Chen Y, Shen X, Su C, Guo Y, Wang P, Shi C, Lei M, Cao Y, Liu S. LncRNA NKX2-1-AS1 promotes tumor progression and angiogenesis via upregulation of SERPINE1 expression and activation of the VEGFR-2 signaling pathway in gastric cancer. Mol Oncol 2021; 15:1234-1255. [PMID: 33512745 PMCID: PMC8024734 DOI: 10.1002/1878-0261.12911] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 12/26/2020] [Accepted: 01/05/2021] [Indexed: 12/13/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) can compete with endogenous RNAs to modulate the gene expression and contribute to oncogenesis and tumor metastasis. lncRNA NKX2-1-AS1 (NKX2-1 antisense RNA 1) plays a pivotal role in cancer progression and metastasis; however, the contribution of aberrant expression of NKX2-1-AS1 and the mechanism by which it functions as a competing endogenous RNA (ceRNA) in gastric cancer (GC) remains elusive. NKX2-1-AS1 expression was detected in paired tumor and nontumor tissues of 178 GC patients by quantitative reverse transcription PCR (qRT-PCR). Using loss-of-function and gain-of-function experiments, the biological functions of NKX2-1-AS1 were evaluated both in vitro and in vivo. Further, to assess that NKX2-1-AS1 regulates angiogenic processes, tube formation and co-culture assays were performed. RNA binding protein immunoprecipitation (RIP) assay, a dual-luciferase reporter assay, quantitative PCR, Western blot, and fluorescence in situ hybridization (FISH) assays were performed to determine the potential molecular mechanism underlying this ceRNA. The results indicated that NKX2-1-AS1 expression was upregulated in GC cell lines and tumor tissues. Overexpression of NKX2-1-AS1 was significantly associated with tumor progression and enhanced angiogenesis. Functionally, NKX2-1-AS1 overexpression promoted GC cell proliferation, metastasis, invasion, and angiogenesis, while NKX2-1-AS1 knockdown restored these effects, both in vitro and in vivo. RIP and dual-luciferase assays revealed that the microRNA miR-145-5p is a direct target of NKX2-1-AS1 and that NKX2-1-AS1 serves as a ceRNA to sponge miRNA and regulate angiogenesis in GC. Moreover, serpin family E member 1 (SERPINE1) is an explicit target for miR-145-5p; besides, the NKX2-1-AS1/miR-145-5p axis induces the translation of SERPINE1, thus activating the VEGFR-2 signaling pathway to promote tumor progression and angiogenesis. NKX2-1-AS1 overexpression is associated with enhanced tumor cell proliferation, angiogenesis, and poor prognosis in GC. Collectively, NKX2-1-AS1 functions as a ceRNA to miR-145-5p and promotes tumor progression and angiogenesis by activating the VEGFR-2 signaling pathway via SERPINE1.
Collapse
Affiliation(s)
- Fei Teng
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Ju‐Xiang Zhang
- Shanghai Med‐X Engineering Center for Medical Equipment and TechnologySchool of Biomedical EngineeringShanghai Jiao Tong UniversityChina
| | - Yi Chen
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Xiao‐Dong Shen
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Chang Su
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Yan‐Jiao Guo
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Pu‐Hua Wang
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Chen‐cheng Shi
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Ming Lei
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Yi‐Ou Cao
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| | - Shao‐Qun Liu
- Department of Gastrointestinal SurgeryMinhang HospitalFudan UniversityShanghaiChina
- Institute of Fudan‐Minhang Academic Health SystemMinhang HospitalFudan UniversityShanghaiChina
| |
Collapse
|
8
|
Cheng H, Zhou L, Long Y, Xiang J, Chen L. MACC1 Is Associated With Epithelial-Mesenchymal Transition and Can Predict Poor Prognosis in Nasopharyngeal Carcinoma. Front Oncol 2021; 11:644120. [PMID: 33854976 PMCID: PMC8039464 DOI: 10.3389/fonc.2021.644120] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/11/2021] [Indexed: 12/28/2022] Open
Abstract
Background Given the reported correlation between the oncogene metastasis-associated in colon cancer 1 (MACC1) and nasopharyngeal carcinoma (NPC), as well as between MACC1 and epithelial–mesenchymal transition (EMT), we speculated that EMT is a likely causative link between MACC1 expression and poor NPC prognosis. Thus, we aim to clarify the relationship between MACC1 and EMT in NPC prognosis. Material and Methods We performed immunohistochemical examination of tissue sections from 128 NPC patients that were divided into six groups corresponding to high and low protein expression of MACC1 and two EMT-related proteins, vimentin and E-cadherin, and Kaplan–Meier (KM) survival analyses were performed. Results KM survival analysis showed that upregulation of MACC1 and vimentin and downregulation of E-cadherin were significantly associated with reduced survival in NPC. Short hairpin RNA (shRNA) interference and immunoblotting in the NPC cell line HNE-1 led to increased E-cadherin but decreased vimentin levels. MACC1 overexpression was significantly correlated with poor 5-year overall survival, metastasis-free survival, and disease-free survival (P<0.05) but not with poor relapse-free survival (P>0.05). Univariate analyses revealed that MACC1, E-cadherin, and vimentin levels along with T and N tumor classifications and cancer staging are significant prognostic factors of NPC (P<0.05). Conclusion Our findings showed the association between MACC1 and EMT in NPC malignancy and support the role of MACC1 as a prognostic biomarker and molecular target for NPC treatment.
Collapse
Affiliation(s)
- Hao Cheng
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, China.,Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, Southern Medical University, Chenzhou, China
| | - Linxiang Zhou
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, University of South China, Chenzhou, China
| | - Yalan Long
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, University of South China, Chenzhou, China
| | - Juanjuan Xiang
- Department of Nasopharyngeal Carcinoma, The First People's Hospital of Chenzhou, University of South China, Chenzhou, China
| | - Longhua Chen
- Department of Radiation Oncology, Nanfang Hospital of Southern Medical University, Guangzhou, China
| |
Collapse
|
9
|
Guo Y, Zhong J, Wu F, Zhan Z. Long noncoding RNA MACC1-AS1 promotes the stemness of hepatocellular carcinoma cells by antagonizing miR-145. J Int Med Res 2021; 48:300060520920411. [PMID: 32339066 PMCID: PMC7218950 DOI: 10.1177/0300060520920411] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Objectives This work aimed to investigate the roles of long noncoding (lnc)RNA MACC1-AS1 (MACC1 antisense RNA 1) in progression of hepatocellular carcinoma (HCC). Methods Real-time quantitative PCR, western blot, spheroid formation, aldehyde dehydrogenase isoform 1 (ALDH1) activity analysis, luciferase reporter assay, and RNA pull-down analysis were used to examine MACC1-AS1–mediated effects on HCC cell stemness. Results MACC1-AS1 was highly expressed in HCC tissues and cells. MACC1-AS1 positively regulated the expression of stemness master regulators and inhibited spheroid-forming ability and ALDH1 activity. Furthermore, MACC1-AS1 promoted the stemness of HCC cells by antagonizing microRNA (miR)-145 activity. Overexpression of miR-145 also attenuated HCC cell stemness. Conclusions This work revealed a novel MACC1-AS1/miR-145 axis that regulates the stemness of HCC cells.
Collapse
Affiliation(s)
- Yuling Guo
- Department of Oncology, the First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Jiuhong Zhong
- Department of Oncology, the First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Fang Wu
- Department of Oncology, the First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| | - Zhengyu Zhan
- Department of Oncology, the First Affiliated Hospital of Nanchang University, Nanchang City, Jiangxi Province, People's Republic of China
| |
Collapse
|
10
|
Zhang C, Zou X. The Downregulation of Long Noncoding RNA Metastasis Associated with Colon Cancer 1 (lncRNA MACC1-AS1) Inhibits the Migration and Invasion of Non-Small Cell Lung Cancer Cells. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
To explore the effects of lncRNA MACC1-AS1 on the invasion and migration of non-small cell lung cancer (NSCLC), PCR was used to detect and compare lncRNA MACC1-AS1 expression in NSCLC cells to normal lung epithelial cells and assess the knockdown effect of lncRNA MACC1-AS1 in A549 and
H1299 cell lines. The Transwell system was employed to compare the invasiveness of the lncRNA MACC1-AS1 knockdown cells to the control cells. The migratory ability of the lncRNA MACC1-AS1 knockdown cells was compared to the control cells via in vitro scratch assay. Western blot was
used to detect the E-cadherin/N-cadherin expression. Balb/c mouse model was used to verify the metastasis ability in vivo between the control and lncRNA MACC1-AS1 knockdown groups. The level of lncRNA MACC1-AS1 was markedly higher in lung cancer cells than normal lung epithelial cells.
The knockdown of lncRNA MACC1-AS1 reduced the invasiveness and migratory capacity of A549 and H1299 cells. Downregulating lncRNA MACC1-AS1 upregulated E-cadherin but down-regulated N-cadherin in A549 and H1299 cells. Besides, the silencing of lncRNA MACC1-AS1 reduced the A549 cells’
ability to metastasize in vivo. LncRNA MACC1-AS1 can enhance the invasiveness and migratory capability of NSCLC.
Collapse
Affiliation(s)
- Caidi Zhang
- Department of Respiration, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214041, PR China
| | - Xinzhong Zou
- Department of Respiration, The Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214041, PR China
| |
Collapse
|
11
|
Adylova A, Mukhanbetzhanovna AA, Attar R, Yulaevna IM, Farooqi AA. Regulation of TGFβ/SMAD signaling by long non-coding RNAs in different cancers: Dark Knight in the Castle of molecular oncology. Noncoding RNA Res 2021; 6:23-28. [PMID: 33511320 PMCID: PMC7814108 DOI: 10.1016/j.ncrna.2020.12.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 12/24/2020] [Accepted: 12/25/2020] [Indexed: 11/15/2022] Open
Abstract
One of the complex themes in recent years has been the multi-layered regulation of TGFβ signaling in cancer cells. TGFβ/SMAD signaling pathway is a highly complicated web of proteins which work spatio-temporally to regulate multiple steps of carcinogenesis. TGFβ/SMAD has been shown to dualistically regulate cancer progression. Therefore, TGFβ/SMAD signaling behaves as a “double-edged sword” in molecular oncology. Accordingly, regulation of TGFβ/SMAD is multi-layered because of oncogenic and tumor suppressor long non-coding RNAs (LncRNAs). In this review, we have summarized most recent breakthroughs in our understanding related to regulation of TGFβ/SMAD signaling by lncRNAs. We have comprehensively analyzed how different lncRNAs positively and negatively regulate TGFβ/SMAD signaling in different cancers. We have gathered missing pieces of an incomplete jig-saw puzzle of lncRNA-interactome ranging from “sponge effects” of lncRNAs to mechanistic modulation of TGFβ/SMAD signaling by lncRNAs.
Collapse
Affiliation(s)
- Aima Adylova
- Biomedical Engineering & Molecular Medicine PhD candidate, Guangdong Key Laboratory for Genome Stability & Disease Prevention and Carson International Cancer Center, Shenzhen University School of Medicine, Shenzhen, Guangdong, 518060, China
| | | | - Rukset Attar
- Department of Obstetrics and Gynecology, Yeditepe University, Turkey
| | | | | |
Collapse
|
12
|
Huang X, Zhou W, Zhang Y. Transcription factor YY1 enhances the stemness of lung cancer cells by stabilizing hypoxia factor HIF-1α under a hypoxic microenvironment. ENVIRONMENTAL TOXICOLOGY 2021; 36:114-122. [PMID: 32881243 DOI: 10.1002/tox.23017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/18/2020] [Accepted: 08/06/2020] [Indexed: 06/11/2023]
Abstract
The hypoxic microenvironment can facilitate the tumor progression, and transcription factor YY1 holds promoting effects in various tumors. This work aims to investigate whether YY1 is involved in hypoxia-induced stemness of lung cancer cells. We showed that hypoxic microenvironment induced the expression of HIF-1α and YY1, and the stemness of lung cancer cells, which was attenuated by YY1 knockdown. Additionally, we found that YY1 regulates the hypoxia-induced stemness in a HIF-1α-dependent manner, but independent on p53 expression. Further analysis revealed that YY1 physically interacted with HIF-1α protein and stabilized HIF-1α protein. Our work indicates a novel YY1/HIF-1α axis regulating the stemness of lung cancer cells.
Collapse
Affiliation(s)
- Xianping Huang
- Department of Cardio-Thoracic Surgery, The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, China
| | - Weihe Zhou
- Department of Cardio-Thoracic Surgery, The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, China
| | - Yuefeng Zhang
- Department of Cardio-Thoracic Surgery, The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou City, Zhejiang Province, China
| |
Collapse
|
13
|
Zhao Q, Sun P, Qin S, Liu J. Acylglycerol kinase promotes the stemness of nasopharyngeal carcinoma cells by promoting β-catenin translocation to the nucleus through activating PI3K/Akt pathway. ENVIRONMENTAL TOXICOLOGY 2020; 35:1299-1307. [PMID: 32652857 DOI: 10.1002/tox.22994] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 05/25/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
Recent evidences show that acylglycerol kinase (AGK) expression is related to the occurrence and development of various human cancers. However, its roles in nasopharyngeal carcinoma (NPC) progression are still unclear. This work aims to explore the roles of AGK in NPC cell stemness. It was shown that AGK expression was higher in NPC tissues compared to the adjacent tissues. Online dataset analysis revealed that AGK expression was negatively correlated with the overall survival of NPC patients. Gain and loss of functional experiments demonstrated that AGK positively regulated the stemness of NPC cells, as evident by the change of the tumor sphere-formation ability, ALDH1 activity and expression of stemness critical regulators. KEGG analysis were performed to determine the potential pathways of AGK involved in NPC cell stemness and showed that the PI3K/Akt pathway exhibited the most correlation with AGK expression. Further mechanistic studies confirmed that AGK promoted the stemness of NPC cells through activating the PI3K/Akt pathway, and thus enhancing β-catenin accumulation in nucleus. This study demonstrates a novel AGK/PI3K/Akt/β-catenin axis involving in NPC cell stemness.
Collapse
Affiliation(s)
- Qi Zhao
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province, China
| | - Peng Sun
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province, China
| | - Songbing Qin
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province, China
| | - Jisheng Liu
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province, China
| |
Collapse
|
14
|
Diagnostic and Prognostic Indications of Nasopharyngeal Carcinoma. Diagnostics (Basel) 2020; 10:diagnostics10090611. [PMID: 32825179 PMCID: PMC7554987 DOI: 10.3390/diagnostics10090611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/11/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023] Open
Abstract
Nasopharyngeal carcinoma (NPC) is a disease that is highly associated with the latent infection of Epstein–Barr virus. The absence of obvious clinical signs at the early stage of the disease has made early diagnosis practically impossible, thereby promoting the establishment and progression of the disease. To enhance the stride for a reliable and less invasive tool for the diagnosis and prognosis of NPC, we synopsize biomarkers belonging to the two most implicated biological domains (oncogenes and tumor suppressors) in NPC disease. Since no single biomarker is sufficient for diagnosis and prognosis, coupled with the fact that the known established methods such as methylation-specific polymerase chain reaction (PCR), multiplex methylation-specific PCR, microarray assays, etc., can only accommodate a few biomarkers, we propose a 10-biomarker panel (KIT, LMP1, PIKC3A, miR-141, and miR-18a/b (oncogenic) and p16, RASSF1A, DAP-kinase, miR-9, and miR-26a (tumor suppressors)) based on their diagnostic and prognostic values. This marker set could be explored in a multilevel or single unified assay for the diagnosis and prognosis of NPC. If carefully harnessed and standardized, it is hoped that the proposed marker set would help transform the diagnostic and prognostic realm of NPC, and ultimately, help prevent the life-threatening late-stage NPC disease.
Collapse
|
15
|
Zhang M, Chen Z, Zhang S, Wu L, Jie Y, Liao Y, Huang Y, Chen J, Shi B. Analysis of Differentially Expressed Long Non-coding RNAs and the Associated TF-mRNA Network in Tongue Squamous Cell Carcinoma. Front Oncol 2020; 10:1421. [PMID: 32923393 PMCID: PMC7456846 DOI: 10.3389/fonc.2020.01421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence indicates that long non-coding RNAs (lncRNAs) play crucial roles in tongue squamous cell carcinoma (TSCC) tumorigenesis. However, the comprehensive regulation of lncRNAs-transcription factors (TFs)-messenger RNAs (mRNAs) in TSCC remains largely unknown. The purpose of this study was to identify aberrantly expressed lncRNAs and the associated TF-mRNA network in TSCC. To explore lncRNA and mRNA expression profiles and their biological functions in TSCC, we surveyed the lncRNA and mRNA expression profiles of TSCC and adjacent tissues using next-generation RNA sequencing in six patients. Thousands of significantly differentially expressed lncRNAs (DELs) and mRNAs (DEGs) were identified. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed to demonstrate the principal functions of the significantly dysregulated lncRNAs and genes. A total of 40 DELs were screened between TSCC and adjacent non-cancerous tissues. Results obtained from GEPIA and StarBase confirmed the expression levels of nine pivotal DELs obtained in our study. Three of the nine deregulated DELs were identified to have a significant impact on the overall survival of TSCC patients, which were evaluated with GEPIA and StarBase. LncMAP was used to predict the lncRNA-TF-mRNA triplets in TSCC. Furthermore, based on these results, we established lncRNA-TF-mRNA coexpression networks for the up- and downregulated lncRNAs using Cytoscape. We also found that among the nine pivotal lncRNAs, there is limited research on the abnormally expressed lncRNAs, including RP11-54H7.4, CTD-2545M3.8, RP11-760H22.2, RP4-791M13.3, and LINC01405, in TSCC pathogenesis. This is the first study to show that RP11-54H7.4, LINC00152, and LINC01405 can be acted as a prognostic target for TSCC. Our findings provide a novel perspective and lay the foundation for future research on the potential roles of lncRNAs, TFs, and mRNAs in TSCC. Verification of the potential lncRNA-TF-mRNA regulatory networks will provide a more comprehensive understanding of the pathogenesis of TSCC.
Collapse
Affiliation(s)
- Mi Zhang
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Zexi Chen
- Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Sihui Zhang
- Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Ling Wu
- Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Yinghui Jie
- Research Center of Dental and Craniofacial Implants, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Yunyang Liao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yue Huang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Jiang Chen
- School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Bin Shi
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| |
Collapse
|
16
|
Yan G, Zhao H, Hong X. LncRNA MACC1-AS1 attenuates microvascular endothelial cell injury and promotes angiogenesis under hypoxic conditions via modulating miR-6867-5p/TWIST1 in human brain microvascular endothelial cells. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:876. [PMID: 32793720 DOI: 10.21037/atm-20-4915] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Hypoxia following ischemic stroke is a common cause of brain insults. Mounting evidence suggests that long non-coding RNAs (lncRNAs) play a vital role in regulating certain physiological and pathological processes including ischemic stroke. For the first time, the present study investigated the effects and mechanism of LncRNA MACC1-AS1 on hypoxia-induced human brain microvascular endothelial cells (HBMECs). Methods LncRNA MACC1-AS1 levels in HBMECs were detected via reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay. Reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), and catalase (CAT), were detected using their respective kits. Flow cytometry and clone formation assay were performed to evaluate the effects of lncRNA MACC1-AS1 on cell apoptosis and cell proliferation respectively. Angiogenesis capacity was evaluated via tube formation assay. Transwell migration assay was performed for assessment of cell migration, Western blot assay was performed for measurement of Twist1 and VE-cadherin level, and permeability assay was performed for evaluation of the cell barrier function. The target gene was predicted via bioinformatics online tool and validated through luciferase reporter assay and RNA pull-down assay. Results LncRNA MACC1-AS1 was downregulated in hypoxia-induced HBMECs. Overexpression of LncRNA MACC1-AS1 reduced cell apoptosis and oxidative stress, while promoting cell proliferation, migration, and angiogenesis. Moreover, LncRNA MACC1-AS1 overexpression reduced cell permeability and elevated VE-cadherin level, which contributed to maintaining cell barrier function. TWIST1 was validated as the target of miR-6867-5p which was further targeted by lncRNA MACC1-AS1. Thus, LncRNA MACC1-AS1 functions in hypoxia-induced HBMECs by regulating miR-6867-5p/TWIST1. Conclusions In this study, we found that LncRNA MACC1-AS1 exerted a protective role in hypoxia-induced HBMECs via regulating miR-6867-5p/TWIST1, indicating a new therapeutic strategy for future ischemic stroke therapy.
Collapse
Affiliation(s)
- Guangjun Yan
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Haomin Zhao
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xin Hong
- Department of Vascular Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| |
Collapse
|
17
|
Sun J, Liu J, Zhu Q, Xu F, Kang L, Shi X. Hsa_circ_0001806 Acts as a ceRNA to Facilitate the Stemness of Colorectal Cancer Cells by Increasing COL1A1. Onco Targets Ther 2020; 13:6315-6327. [PMID: 32636650 PMCID: PMC7335295 DOI: 10.2147/ott.s255485] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/12/2020] [Indexed: 12/20/2022] Open
Abstract
Background The aberrant expression of circular RNAs (circRNAs) has been identified as a novel trait of cancers. However, the role of circRNAs in colorectal cancer (CRC) remains to be elucidated. Methods Informatic analysis was performed to identify circRNAs in CRC tissues and adjacent tissues. Gain- and loss-of-function experiments were constructed to analyze hsa_circ_001806 roles in CRC cell stemness by sphere-formation, ALDH activity, stemness marker expression and tumor-initiating ability assays. CCK8 cell viability was carried out to evaluate hsa_circ_0001806 roles in CRC cell viability. Luciferase reporter and pull-down assays were used to reveal the underlying mechanisms. Results Hsa_circ_0001806 was significantly upregulated in CRC tissues and correlated with TNM stage, depth of invasion, lymphatic metastasis and distant metastasis. Hsa_circ_0001806 promoted the stemness of CRC cells, as evident by increasing sphere-formation ability, ALDH1 activity and stemness marker expression while had no effect on cell viability. Mechanistically, the same miR-193-5p-binding sites are shared between hsa_circ_0001806 and COL1A1. Hsa_circ_0001806 upregulates COL1A1 expression in a miR-193-5p-dependent manner, which is essential for hsa_circ_0001806-mediated regulation on CRC cell stemness. Conclusion CircRNA hsa_circ_0001806 may act as a promising therapeutic target by facilitating the stemness of CRC cells via activating the hsa_circ_0001806/miR-193a-5p/COL1A1 axis.
Collapse
Affiliation(s)
- Jie Sun
- Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, Jiangsu 215153, People's Republic of China
| | - Jie Liu
- Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, Jiangsu 215153, People's Republic of China
| | - Qilin Zhu
- Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, Jiangsu 215153, People's Republic of China
| | - Feng Xu
- Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, Jiangsu 215153, People's Republic of China
| | - Liumin Kang
- Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, Jiangsu 215153, People's Republic of China
| | - Xiaohua Shi
- Department of Gastroenterology, The Affiliated Suzhou Science and Technology Town Hospital of Nanjing Medical University, Suzhou, Jiangsu 215153, People's Republic of China
| |
Collapse
|
18
|
Han S, Song L, Chen Y, Hou M, Wei X, Fan D. The long non-coding RNA ILF3-AS1 increases the proliferation and invasion of retinoblastoma through the miR-132-3p/SMAD2 axis. Exp Cell Res 2020; 393:112087. [PMID: 32407730 DOI: 10.1016/j.yexcr.2020.112087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/07/2020] [Accepted: 05/09/2020] [Indexed: 12/19/2022]
Abstract
A great deal of evidence suggests that long non-coding RNAs (lncRNAs) function in the tumorigenesis of retinoblastoma (RB). However, the roles of lncRNA ILF3-AS1 in RB are still unclear. In the present study, our work revealed that the lncRNA ILF3-AS1 was increased in both RB tissues and cell lines. Repression of ILF3-AS1 suppressed both RB cell proliferation and invasion in vitro. ILF3-AS1 also promoted tumor growth in vivo. While exploring the mechanisms behind ILF3-AS1 in RB, we identified that ILF3-AS1 sponges with miR-132-3p that is expressed at low levels in RB tissues as well as attenuates RB progression. Furthermore, SMAD2 was confirmed to be a miR-132-3p target. Finally, we found that SMAD2 overexpression or miR-132-3p inhibitors recover the inhibitory effects of ILF3-AS1 suppression on RB progression. Collectively, these data indicate that ILF3-AS1 is involved in RB progression through the miR-132-3p/SMAD2 axis, providing a novel and promising biomarker that can be used for the treatment of RB.
Collapse
Affiliation(s)
- Shaoping Han
- Department of Ophthalmology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000, China.
| | - Lili Song
- Department of Ophthalmology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000, China
| | - Yang Chen
- Department of Ophthalmology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000, China
| | - Min Hou
- Department of Ophthalmology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000, China
| | - Xiaoyue Wei
- Department of Ophthalmology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000, China
| | - Dongsheng Fan
- Department of Ophthalmology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, 471000, China
| |
Collapse
|