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Syllaios A, Gazouli M, Vailas M, Mylonas KS, Sakellariou S, Sougioultzis S, Karavokyros I, Liakakos T, Schizas D. The Expression Patterns and Implications of MALAT1, MANCR, PSMA3-AS1 and miR-101 in Esophageal Adenocarcinoma. Int J Mol Sci 2023; 25:98. [PMID: 38203269 PMCID: PMC10778904 DOI: 10.3390/ijms25010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/09/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Esophageal adenocarcinoma (EAC) is a malignant tumor with poorly understood molecular mechanisms. This study endeavors to elucidate how the long non-coding RNAs (lncRNAs) MALAT1, MANCR and PSMA3-AS1, as well as the microRNA miR-101, exhibit specific expression patterns in the pathogenesis and prognosis of EAC. A total of 50 EAC tissue samples (tumors and lymph nodes) and a control group comprising 26 healthy individuals were recruited. The samples underwent quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analyses. The relative expression levels of MALAT1, MANCR, PSMA3-AS1, and miR-101 were ascertained and correlated with various clinicopathological parameters including TNM staging, tumor characteristics (size and grade of the tumor) lymphatic invasion, disease-free (DFS) and overall survival (OS) of EAC patients. Quantitative analyses revealed that MALAT1 and MANCR were significantly upregulated in EAC tumors and positive lymph nodes when compared to control tissues (p < 0.05). Such dysregulations correlated positively with advanced lymphatic metastases and a higher N stage. DFS in the subgroup of patients with negative lymph nodes was higher in the setting of low-MANCR-expression patients compared to patients with high MANCR expression (p = 0.02). Conversely, miR-101 displayed a significant downregulation in EAC tumors and positive lymph nodes (p < 0.05), and correlated negatively with advanced tumor stage, lymphatic invasion and the grade of the tumor (p = 0.006). Also, patients with low miR-101 expression showed a tendency towards inferior overall survival. PSMA3-AS1 did not demonstrate statistically significant alterations (p > 0.05). This study reveals MALAT1, MANCR, and miR-101 as putative molecular markers for prognostic evaluation in EAC and suggests their involvement in EAC progression.
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Affiliation(s)
- Athanasios Syllaios
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (M.V.); (I.K.); (T.L.); (D.S.)
| | - Maria Gazouli
- Laboratory of Biology, Department of Basic Medical Sciences, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece;
| | - Michail Vailas
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (M.V.); (I.K.); (T.L.); (D.S.)
| | | | - Stratigoula Sakellariou
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece;
| | - Stavros Sougioultzis
- Gastroenterology Unit, Department of Pathophysiology, School of Medicine, National and Kapodistrian University Athens, 115 27 Athens, Greece;
| | - Ioannis Karavokyros
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (M.V.); (I.K.); (T.L.); (D.S.)
| | - Theodoros Liakakos
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (M.V.); (I.K.); (T.L.); (D.S.)
| | - Dimitrios Schizas
- First Department of Surgery, Laikon General Hospital, National and Kapodistrian University of Athens, 115 27 Athens, Greece; (M.V.); (I.K.); (T.L.); (D.S.)
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Nagasawa M, Tomimatsu K, Terada K, Kondo K, Miyazaki K, Miyazaki M, Motooka D, Okuzaki D, Yoshida T, Kageyama S, Kawamoto H, Kawauchi A, Agata Y. Long non-coding RNA MANCR is a target of BET bromodomain protein BRD4 and plays a critical role in cellular migration and invasion abilities of prostate cancer. Biochem Biophys Res Commun 2020; 526:128-134. [PMID: 32199616 DOI: 10.1016/j.bbrc.2020.03.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 03/09/2020] [Indexed: 01/03/2023]
Abstract
Androgen receptor (AR)-negative castration-resistant prostate cancer (CRPC) is highly aggressive and is resistant to most of the current therapies. Bromodomain and extra terminal domain (BET) protein BRD4 binds to super-enhancers (SEs) that drive high expression of oncogenes in many cancers. A BET inhibitor, JQ1, has been found to suppress the malignant phenotypes of prostate cancer cells, however, the target genes of JQ1 remain largely unknown. Here we show that SE-associated genes specific for AR-negative CRPC PC3 cells include genes involved in migration and invasion, and that JQ1 impairs migration and invasion of PC3 cells. We identified a long non-coding RNA, MANCR, which was markedly down-regulated by JQ1, and found that BRD4 binds to the MANCR locus. MANCR knockdown led to a significant decrease in migration and invasion of PC3 cells. Furthermore, RNA sequencing analysis revealed that expression of the genes involved in migration and invasion was altered by MANCR knockdown. In summary, our data demonstrate that MANCR plays a critical role in migration and invasion of PC3 cells.
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Affiliation(s)
- Masayuki Nagasawa
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Shiga, Japan; Department of Urology, Shiga University of Medical Science, Shiga, Japan
| | - Kosuke Tomimatsu
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Shiga, Japan
| | - Koji Terada
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Shiga, Japan
| | - Kenta Kondo
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Shiga, Japan
| | - Kazuko Miyazaki
- Laboratory of Immunology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Masaki Miyazaki
- Laboratory of Immunology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tetsuya Yoshida
- Department of Urology, Shiga University of Medical Science, Shiga, Japan
| | - Susumu Kageyama
- Department of Urology, Shiga University of Medical Science, Shiga, Japan
| | - Hiroshi Kawamoto
- Laboratory of Immunology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Akihiro Kawauchi
- Department of Urology, Shiga University of Medical Science, Shiga, Japan
| | - Yasutoshi Agata
- Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Shiga, Japan.
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Wen S, Zeng M, Li Y, Hu X, Li S, Liang X, Zhu L, Yang S. Downregulation of MANCR inhibits cancer cell proliferation in mantle cell lymphoma possibly by interacting with RUNX2. Acta Biochim Biophys Sin (Shanghai) 2019; 51:1142-1147. [PMID: 31650163 DOI: 10.1093/abbs/gmz114] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/03/2019] [Accepted: 09/06/2019] [Indexed: 12/11/2022] Open
Abstract
The mitotically associated lncRNA (MANCR) participates in breast cancer cell proliferation, while its involvement in other cancers is still unknown. In this study, we therefore studied the role of MANCR in mantle cell lymphoma (MCL). We found that serum MANCR and Runt-related transcription factor 2 (RUNX2) were upregulated in MCL patients when compared with those in healthy controls. A positive correlation between serum MANCR and RUNX2 was found in MCL patients but not in controls. Upregulation of serum MANCR distinguished MCL patients from controls. MANCR overexpression promoted RUNX2 expression in MCL cells, while RUNX2 overexpression failed to significantly change the expression levels of MANCR. MANCR overexpression promoted the proliferation of MCL cells, while MANCR silencing inhibited the proliferation of MCL cells. In addition, RUNX2 overexpression attenuated the inhibitory effects of MANCR silencing on cell proliferation. However, MANCR overexpression and silencing had no significant effects on cell migration and invasion. Further bioinformatics analysis showed that MANCR may sponge miR-218 to upregulate RUNX2. Therefore, we conclude that downregulation of MANCR may inhibit cancer cell proliferation in MCL possibly by interacting with RUNX2.
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Affiliation(s)
- Shujuan Wen
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Min Zeng
- Department of Thoracic and Abdominal Radiation, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Yan Li
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Xin Hu
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Shan Li
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Xiao Liang
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Lin Zhu
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - Shune Yang
- Department of Lymphoma, Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi 830011, China
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