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Hayashi‐Okada M, Sato S, Nakashima K, Sakai T, Tamehisa T, Kajimura T, Tamura I, Sueoka K, Sugino N. Identification of long noncoding RNAs downregulated specifically in ovarian high-grade serous carcinoma. Reprod Med Biol 2024; 23:e12572. [PMID: 38571514 PMCID: PMC10988898 DOI: 10.1002/rmb2.12572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/16/2024] [Accepted: 02/27/2024] [Indexed: 04/05/2024] Open
Abstract
Purpose To investigate whether long noncoding RNAs (lncRNAs) are involved in the development or malignant behavior of ovarian high-grade serous carcinoma (HGSC), we attempted to identify lncRNAs specific to HGSC. Methods Total RNAs were isolated from HGSC, normal ovarian, and fallopian tube tissue samples and were subjected to a PCR array that can analyze 84 cancer-associated lncRNAs. The lncRNAs that were upregulated and downregulated in HGSC in comparison to multiple samples of normal ovary and fallopian tube were validated by real-time RT-PCR. To infer the function, ovarian cancer cell lines that overexpress the identified lncRNAs were established, and the activation of cell proliferation, migration, and invasion was analyzed. Results Eleven lncRNAs (ACTA2-AS1, ADAMTS9-AS2, CBR3-AS1, HAND2-AS1, IPW, LINC00312, LINC00887, MEG3, NBR2, TSIX, and XIST) were downregulated in HGSC samples. We established the cell lines that overexpress ADAMTS9-AS2, CBR3-AS1, or NBR2. In cell lines overexpressing ADAMTS9-AS2, cell proliferation was suppressed, but migration and invasion were promoted. In cell lines overexpressing CBR3-AS1 or NBR2, cell migration tended to be promoted, although cell proliferation and invasion were unchanged. Conclusion We identified eleven lncRNAs that were specifically downregulated in HGSC. Of these, CBR3-AS1, NBR2, and ADAMTS9-AS2 had unique functions in the malignant behaviors of HGSC.
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Affiliation(s)
- Maki Hayashi‐Okada
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Shun Sato
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Kengo Nakashima
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Takahiro Sakai
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Tetsuro Tamehisa
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Takuya Kajimura
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Isao Tamura
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Kotaro Sueoka
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
| | - Norihiro Sugino
- Department of Obstetrics and GynecologyYamaguchi University Graduate School of MedicineUbeJapan
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Vazana-Netzarim R, Elmalem Y, Sofer S, Bruck H, Danino N, Sarig U. Distinct HAND2/HAND2-AS1 Expression Levels May Fine-Tune Mesenchymal and Epithelial Cell Plasticity of Human Mesenchymal Stem Cells. Int J Mol Sci 2023; 24:16546. [PMID: 38003736 PMCID: PMC10672054 DOI: 10.3390/ijms242216546] [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: 09/21/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 11/26/2023] Open
Abstract
We previously developed several successful decellularization strategies that yielded porcine cardiac extracellular matrices (pcECMs) exhibiting tissue-specific bioactivity and bioinductive capacity when cultured with various pluripotent and multipotent stem cells. Here, we study the tissue-specific effects of the pcECM on seeded human mesenchymal stem cell (hMSC) phenotypes using reverse transcribed quantitative polymerase chain reaction (RT-qPCR) arrays for cardiovascular related gene expression. We further corroborated interesting findings at the protein level (flow cytometry and immunological stains) as well as bioinformatically using several mRNA sequencing and protein databases of normal and pathologic adult and embryonic (organogenesis stage) tissue expression. We discovered that upon the seeding of hMSCs on the pcECM, they displayed a partial mesenchymal-to-epithelial transition (MET) toward endothelial phenotypes (CD31+) and morphologies, which were preceded by an early spike (~Day 3 onward after seeding) in HAND2 expression at both the mRNA and protein levels compared to that in plate controls. The CRISPR-Cas9 knockout (KO) of HAND2 and its associated antisense long non-coding RNA (HAND2-AS1) regulatory region resulted in proliferation arrest, hypertrophy, and senescent-like morphology. Bioinformatic analyses revealed that HAND2 and HAND2-AS1 are highly correlated in expression and are expressed in many different tissue types albeit at distinct yet tightly regulated expression levels. Deviation (downregulation or upregulation) from these basal tissue expression levels is associated with a long list of pathologies. We thus suggest that HAND2 expression levels may possibly fine-tune hMSCs' plasticity through affecting senescence and mesenchymal-to-epithelial transition states, through yet unknown mechanisms. Targeting this pathway may open up a promising new therapeutic approach for a wide range of diseases, including cancer, degenerative disorders, and aging. Nevertheless, further investigation is required to validate these findings and better understand the molecular players involved, potential inducers and inhibitors of this pathway, and eventually potential therapeutic applications.
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Affiliation(s)
- Rachel Vazana-Netzarim
- The Dr. Miriam and Sheldon Adelson School of Medicine, Department of Morphological Sciences and Teratology, Ariel University, Ariel 4070000, Israel; (R.V.-N.); (N.D.)
| | - Yishay Elmalem
- Department of Chemical Engineering, Faculty of Engineering, Ariel University, Ariel 4070000, Israel (S.S.); (H.B.)
| | - Shachar Sofer
- Department of Chemical Engineering, Faculty of Engineering, Ariel University, Ariel 4070000, Israel (S.S.); (H.B.)
| | - Hod Bruck
- Department of Chemical Engineering, Faculty of Engineering, Ariel University, Ariel 4070000, Israel (S.S.); (H.B.)
| | - Naama Danino
- The Dr. Miriam and Sheldon Adelson School of Medicine, Department of Morphological Sciences and Teratology, Ariel University, Ariel 4070000, Israel; (R.V.-N.); (N.D.)
| | - Udi Sarig
- The Dr. Miriam and Sheldon Adelson School of Medicine, Department of Morphological Sciences and Teratology, Ariel University, Ariel 4070000, Israel; (R.V.-N.); (N.D.)
- Department of Chemical Engineering, Faculty of Engineering, Ariel University, Ariel 4070000, Israel (S.S.); (H.B.)
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Ghafouri-Fard S, Hussen BM, Abdullah SR, Dadyar M, Taheri M, Kiani A. A review on the role of HAND2-AS1 in cancer. Clin Exp Med 2023; 23:3179-3188. [PMID: 37204522 PMCID: PMC10618356 DOI: 10.1007/s10238-023-01092-3] [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: 12/07/2022] [Accepted: 05/11/2023] [Indexed: 05/20/2023]
Abstract
HAND2 antisense RNA 1 (HAND2-AS1) is a newly recognized lncRNA encoded by a gene on 4q34.1. This lncRNA has 10 exons and is predicted to have a positive effect on expression of certain genes. HAND2-AS1 is mainly considered as a tumor suppressive lncRNA in different tissues. Moreover, HAND2-AS1 has been shown to regulate expression of several targets with possible roles in the carcinogenesis through serving as a sponge for miRNAs. This lncRNA can also influence activity of BMP, TGF-β1, JAK/STAT and PI3K/Akt pathways. Down-regulation of HAND2-AS1 in tumor tissues has been associated with larger tumor size, higher tumor grade, higher chance of metastasis and poor clinical outcome. The present study aims at summarization of the impact of HAND2-AS1 in the carcinogenesis and its potential in cancer diagnosis or prediction of cancer prognosis.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Tehran Lung Research and Developmental Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Clinical Analysis, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
- Tehran Lung Research and Developmental Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Snur Rasool Abdullah
- Department of Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, Iraq
- Tehran Lung Research and Developmental Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Dadyar
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Tehran Lung Research and Developmental Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany.
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Arda Kiani
- Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Tehran Lung Research and Developmental Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Wang Z, Cui Y, Wang F, Xu L, Yan Y, Tong X, Yan H. DNA methylation-regulated LINC02587 inhibits ferroptosis and promotes the progression of glioma cells through the CoQ-FSP1 pathway. BMC Cancer 2023; 23:989. [PMID: 37848823 PMCID: PMC10580646 DOI: 10.1186/s12885-023-11502-0] [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: 01/02/2023] [Accepted: 10/09/2023] [Indexed: 10/19/2023] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) are considered key players in the formation and development of tumors. Herein, Gene Expression Profiling Interactive Analysis (GEPIA) was employed as a bioinformatics technology. LINC02587 is differentially expressed in bladder urothelial cancer, glioblastoma, lung adenocarcinoma, lung SCC, melanoma, and other tumor tissue and cells. However, its impact on the emergence of glioma and its mechanism is remaining elusive. METHODS Some of the in vitro assays employed in this study were the CCK-8 / Annexin-V / Transwell assays, colony formation, and wound healing, together with Western blot (WB) evaluation. MSP / BSP assays were employed for assessing the CpG island's methylation status in the LINC02587 promoter. Through transcriptome, ferroptosis-related experiments, and WB evaluation, it was confirmed that LINC02587 is correlated with the regulation of ferroptosis in tumor cells, and CoQ-Fsp1 is one of its regulatory pathways. Moreover, the underlined in-vitro results were further validated by in-vivo studies. RESULTS The current study shows that the promoter sequence of LINC02587 is regulated by methylation. The silencing of LINC02587 can inhibit cellular proliferative, migrative, and invasive properties, and induce ferroptosis within gliomas through the CoQ-FSP1 pathway. CONCLUSIONS LINC02587 is likely to be a novel drug target in treating glioma.
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Affiliation(s)
- Zhengang Wang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China
- Department of Neurosurgery, Affiliated Hospital of Weifang Medical University, Weifang, Shan Dong, 261000, China
| | - Yang Cui
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China
- Department of Neurosurgery, Hebei Yanda Hospital, Langfang, He Bei, China
| | - Fanchen Wang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China
- Cancer Molecular Diagnostics Core, Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Lixia Xu
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin Huanhu Hospital, Tianjin, 300350, China
| | - Yan Yan
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China.
- Clinical Laboratory, Tianjin Huanhu Hospital, Tianjin, 300350, China.
| | - Xiaoguang Tong
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China.
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin Huanhu Hospital, Tianjin, 300350, China.
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, 300350, China.
| | - Hua Yan
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, 300350, China.
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin Huanhu Hospital, Tianjin, 300350, China.
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, 300350, China.
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Salamini-Montemurri M, Lamas-Maceiras M, Lorenzo-Catoira L, Vizoso-Vázquez Á, Barreiro-Alonso A, Rodríguez-Belmonte E, Quindós-Varela M, Cerdán ME. Identification of lncRNAs Deregulated in Epithelial Ovarian Cancer Based on a Gene Expression Profiling Meta-Analysis. Int J Mol Sci 2023; 24:10798. [PMID: 37445988 PMCID: PMC10341812 DOI: 10.3390/ijms241310798] [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: 05/15/2023] [Revised: 06/19/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
Epithelial ovarian cancer (EOC) is one of the deadliest gynecological cancers worldwide, mainly because of its initially asymptomatic nature and consequently late diagnosis. Long non-coding RNAs (lncRNA) are non-coding transcripts of more than 200 nucleotides, whose deregulation is involved in pathologies such as EOC, and are therefore envisaged as future biomarkers. We present a meta-analysis of available gene expression profiling (microarray and RNA sequencing) studies from EOC patients to identify lncRNA genes with diagnostic and prognostic value. In this meta-analysis, we include 46 independent cohorts, along with available expression profiling data from EOC cell lines. Differential expression analyses were conducted to identify those lncRNAs that are deregulated in (i) EOC versus healthy ovary tissue, (ii) unfavorable versus more favorable prognosis, (iii) metastatic versus primary tumors, (iv) chemoresistant versus chemosensitive EOC, and (v) correlation to specific histological subtypes of EOC. From the results of this meta-analysis, we established a panel of lncRNAs that are highly correlated with EOC. The panel includes several lncRNAs that are already known and even functionally characterized in EOC, but also lncRNAs that have not been previously correlated with this cancer, and which are discussed in relation to their putative role in EOC and their potential use as clinically relevant tools.
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Affiliation(s)
- Martín Salamini-Montemurri
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Mónica Lamas-Maceiras
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Lidia Lorenzo-Catoira
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Ángel Vizoso-Vázquez
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Aida Barreiro-Alonso
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - Esther Rodríguez-Belmonte
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
| | - María Quindós-Varela
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
- Complexo Hospitalario Universitario de A Coruña (CHUAC), Servizo Galego de Saúde (SERGAS), 15006 A Coruña, Spain
| | - M Esperanza Cerdán
- Centro Interdisciplinar de Química e Bioloxía (CICA), As Carballeiras, s/n, Campus de Elviña, Universidade da Coruña, 15071 A Coruña, Spain
- Facultade de Ciencias, A Fraga, s/n, Campus de A Zapateira, Universidade da Coruña, 15071 A Coruña, Spain
- Instituto de Investigación Biomédica de A Coruña (INIBIC), As Xubias de Arriba 84, 15006 A Coruña, Spain
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Huang Z, Wang Z, Xia H, Ge Z, Yu L, Li J, Bao H, Liang Z, Cui Y, Xu Y. Long noncoding RNA HAND2-AS1: A crucial regulator of malignancy. Clin Chim Acta 2023; 539:162-169. [PMID: 36528049 DOI: 10.1016/j.cca.2022.12.010] [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: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Long non-coding RNAs (LncRNAs) are single-stranded RNAs over 200 nucleotides in length that have no protein-coding function and have long been considered non-functional by-products of transcription. Recent studies have shown that dysregulation of lncRNAs may be involved in the malignant biological behavior of tumors. Targeted regulation of lncRNAs has become a research focus of anti-tumor treatment. LncRNAs heart and neural crest derivatives expressed 2 antisense RNA 1 (HAND2-AS1) was down-regulated in various tumors and can be used as a critical tumor regulator to modulate tumor cells proliferation, apoptosis, metastasis, invasion, metabolism and drug resistance. Additionally, aberrantly expressed HAND2-AS1 was closely related to the clinical pathological characteristics of cancer patients and serve as a promising tumor diagnostic and prognostic biomarker. This article aims to review the roles of HAND2-AS1 in tumorigenesis and development, as well as the underlying molecular mechanisms and clinical significance.
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Affiliation(s)
- Ziyue Huang
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Zhensheng Wang
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Haoming Xia
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Ziqiang Ge
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Liang Yu
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China; The key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin 150086, Heilongjiang, China; Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong
| | - Jiehan Li
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Haolin Bao
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Zixin Liang
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Yunfu Cui
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China
| | - Yi Xu
- Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang, China; The key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin 150086, Heilongjiang, China; Department of Pathology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong.
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Moradi A, Shahsavari M, Gowdini E, Mohammadian K, Alizamir A, Khalilollahi M, Abgarmi ZM, Ganji SM. Consequences of aberrated DNA methylation in Colon Adenocarcinoma: a bioinformatic-based multi-approach. BMC Genom Data 2022; 23:83. [PMID: 36443682 PMCID: PMC9706923 DOI: 10.1186/s12863-022-01100-7] [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: 05/28/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION The biology of colorectal cancer (CRC) is remained to be elucidated. Numerous genetic and epigenetic modifications are in concert to create and progress CRC. DNA methylation as a principal epigenetic factor has gained increased attention and could be utilized for biological studies. This study aims to find novel methylated and downregulated genes with a focus on HAND2 in CRC and decipher the biological consequences. MATERIAL AND METHOD Data on DNA methylation from GEO and SMART databases and the expression GEPIA2 database were downloaded. Afterward, a set of hypermethylated and downregulated genes in CRC was chosen by overlapping genes. Consequently, HAND2 was selected as a key gene for further investigation and confirmed with cell lines methylation and expression data. The functions of HAND2 were further analyzed using gene ontology analyses and the protein-protein interaction network. RESULTS The methylation (p < 0.01) and expression (p < 0.01) of HAND2 are significantly varied in CRC compared to normal control. The correlation analysis (Pearson's correlation coefficient = -0.44, p = 6.6e-14) conveys that HAND2 significantly downregulated and has a reverse correlation with the methylation status of CpG islands. The biological process analysis of HAND2 target genes conveyed that disruption in HAND2 expression could dysregulate ERK1 and ERK2 signaling pathways. CONCLUSION Together, the findings showed that DNA hypermethylation of HAND2 was critical evidence in CRC. Further validation and prospective studies are needed to utilize HAND2 methylation as a promising biomarker.
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Affiliation(s)
- Arash Moradi
- grid.419420.a0000 0000 8676 7464Department of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-E Pajoohesh, Km 15, P.O. Box 14965/161, Tehran - Karaj Highway, Tehran, Iran
| | - Milad Shahsavari
- grid.411463.50000 0001 0706 2472Department of Biology, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Erfan Gowdini
- grid.419420.a0000 0000 8676 7464Department of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-E Pajoohesh, Km 15, P.O. Box 14965/161, Tehran - Karaj Highway, Tehran, Iran
| | - Kamal Mohammadian
- grid.411950.80000 0004 0611 9280Department of Radiation Oncology, Hamadan University of Medical Sciences, Mahdieh Center, Hamadan, Iran
| | - Aida Alizamir
- grid.411950.80000 0004 0611 9280Department of Pathology, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Khalilollahi
- grid.411463.50000 0001 0706 2472Department of Microbiology, Islamic Azad University, North Tehran Branch, Tehran, Iran
| | - Zahara Mohammadi Abgarmi
- grid.412266.50000 0001 1781 3962Department of Clinical Biochemistry, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Shahla Mohammad Ganji
- grid.419420.a0000 0000 8676 7464Department of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-E Pajoohesh, Km 15, P.O. Box 14965/161, Tehran - Karaj Highway, Tehran, Iran
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Liu F, Cao L, Zhang Y, Xia X, Ji Y. LncRNA LIFR-AS1 overexpression suppressed the progression of serous ovarian carcinoma. J Clin Lab Anal 2022; 36:e25470. [PMID: 35778954 PMCID: PMC9396205 DOI: 10.1002/jcla.24570] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/23/2022] [Accepted: 05/23/2022] [Indexed: 12/02/2022] Open
Abstract
Background Serous ovarian carcinoma (SOC) is a common malignant tumor in female reproductive system. Long noncoding RNA (lncRNA) LIFR‐AS1 is a tumor suppressor gene in colorectal cancer, but its effect and underlying mechanism in SOC are still unclear. Therefore, this study focuses on unveiling the regulatory mechanism of LIFR‐AS1 in SOC. Methods The relationship between LIFR‐AS1 expression and prognosis of SOC patients was analyzed by TCGA database and Starbase, and then, the LIFR‐AS1 expression in SOC tissues and cells was detected by quantitative real‐time PCR (qRT‐PCR) and in situ hybridization (ISH). Besides, the relationship between LIFR‐AS1 and clinical characteristics was analyzed. Also, the effects of LIFR‐AS1 on the biological behaviors of SOC cells were measured by Cell Counting Kit‐8, colony formation, and wound‐healing and Transwell assays, respectively. Western blot and qRT‐PCR were employed to determine the protein expressions of genes related to proliferation (PCNA), apoptosis (cleaved caspase‐3), epithelial‐mesenchymal transition (E‐cadherin, N‐cadherin, and Snail). Results LIFR‐AS1 was lowly expressed in SOC, which was correlated with the poor prognosis of SOC patients. Low expression of LIFR‐AS1 in SOC was associated with the tumor size, clinical stage, lymph node metastasis, and distant metastasis. LIFR‐AS1 overexpression promoted the expressions of cleaved caspase‐3 and E‐cadherin while suppressing the malignant behaviors (proliferation, migration, and invasion) of SOC cells, the expressions of PCNA, N‐cadherin, and Snail. Besides, silencing LIFR‐AS1 exerted the effects opposite to overexpressed LIFR‐AS1. Conclusion LIFR‐AS1 overexpression inhibits biological behaviors of SOC cells, which may be a new therapeutic method.
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Affiliation(s)
- Fang Liu
- Department of Gynecology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Linyan Cao
- Department of Gynecology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yufang Zhang
- Department of Gynecology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Xinyi Xia
- Department of Gynecology, The Second Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yanhua Ji
- Department of Gynecology, The Fourth People's Hospital of Tongxiang, Jiaxing, China
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The Long Non-Coding RNA SNHG12 as a Mediator of Carboplatin Resistance in Ovarian Cancer via Epigenetic Mechanisms. Cancers (Basel) 2022; 14:cancers14071664. [PMID: 35406435 PMCID: PMC8996842 DOI: 10.3390/cancers14071664] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/20/2022] [Accepted: 03/22/2022] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Epithelial ovarian cancer is a lethal malignancy in which recurrence and therapy resistance are the major causes of death. We investigated the transcriptome and DNA methylation profile of ovarian cancer cell lines sensitive and resistant to carboplatin, aiming to identify genes associated with therapy resistance. We focused on long non-coding RNAs (lncRNAs), known as epigenetic regulators of several cellular and biological processes. We found 11 lncRNAs associated with carboplatin resistance, including SNHG12 (small nucleolar RNA host gene 12), also confirmed in an external dataset (The Cancer Genome Atlas). SNHG12 gene silencing increased the sensitivity to carboplatin, giving evidence that this lncRNA contributes to resistance to carboplatin in ovarian cancer cell lines. We also demonstrated that SNHG12 could control the expression of nearby genes probably by altering epigenetic markers and modifying the transcript levels. Abstract Genetic and epigenetic changes contribute to intratumor heterogeneity and chemotherapy resistance in several tumor types. LncRNAs have been implicated, directly or indirectly, in the epigenetic regulation of gene expression. We investigated lncRNAs that potentially mediate carboplatin-resistance of cell subpopulations, influencing the progression of ovarian cancer (OC). Four carboplatin-sensitive OC cell lines (IGROV1, OVCAR3, OVCAR4, and OVCAR5), their derivative resistant cells, and two inherently carboplatin-resistant cell lines (OVCAR8 and Ovc316) were subjected to RNA sequencing and global DNA methylation analysis. Integrative and cross-validation analyses were performed using external (The Cancer Genome Atlas, TCGA dataset, n = 111 OC samples) and internal datasets (n = 39 OC samples) to identify lncRNA candidates. A total of 4255 differentially expressed genes (DEGs) and 14529 differentially methylated CpG positions (DMPs) were identified comparing sensitive and resistant OC cell lines. The comparison of DEGs between OC cell lines and TCGA-OC dataset revealed 570 genes, including 50 lncRNAs, associated with carboplatin resistance. Eleven lncRNAs showed DMPs, including the SNHG12. Knockdown of SNHG12 in Ovc316 and OVCAR8 cells increased their sensitivity to carboplatin. The results suggest that the lncRNA SNHG12 contributes to carboplatin resistance in OC and is a potential therapeutic target. We demonstrated that SNHG12 is functionally related to epigenetic mechanisms.
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Lasorsa VA, Montella A, Cantalupo S, Tirelli M, de Torres C, Aveic S, Tonini GP, Iolascon A, Capasso M. Somatic mutations enriched in cis-regulatory elements affect genes involved in embryonic development and immune system response in neuroblastoma. Cancer Res 2022; 82:1193-1207. [PMID: 35101866 DOI: 10.1158/0008-5472.can-20-3788] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 11/04/2021] [Accepted: 01/27/2022] [Indexed: 11/16/2022]
Abstract
Noncoding cis-regulatory variants have gained interest as cancer drivers, yet progress in understanding their significance is hindered by the numerous challenges and limitations of variant prioritization. To overcome these limitations, we focused on active cis-regulatory elements (aCRE) in order to design a customized panel for the deep sequencing of 56 neuroblastoma tumor and normal DNA sample pairs. In order to search for driver mutations, aCREs were defined by reanalysis of H3K27ac ChiP-seq peaks in 25 neuroblastoma cell lines. These regulatory genomic regions were tested for an excess of somatic mutations and assessed for statistical significance using a global approach that accounted for chromatin accessibility and replication timing. Additional validation was provided by whole genome sequence analysis of 151 neuroblastomas. Analysis of Hi-C data determined the presence of candidate target genes interacting with mutated regions. An excess of somatic mutations in aCREs of diverse genes were identified, including IPO7, HAND2, and ARID3A. CRISPR-Cas9 editing was utilized to assess the functional consequences of mutations in the IPO7 aCRE. Patients with noncoding mutations in aCREs showed inferior overall and event-free survival independent of age at diagnosis, stage, risk stratification, and MYCN status. Expression of aCRE-interacting genes correlated strongly with negative prognostic markers and low survival rates. Moreover, a convergence between the biological functions of aCRE target genes and transcription factors with mutated binding motifs was associated with embryonic development and immune system response. Overall, this strategy enabled the identification of somatic mutations in regulatory elements that collectively promote neuroblastoma tumorigenesis.
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Affiliation(s)
- Vito Alessandro Lasorsa
- Department of Molecular Medicine and Medical Biotechnology, Università degli Studi di Napoli Federico II
| | - Annalaura Montella
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università Federico II di Napoli, CEINGE Biotecnologie Avanzate
| | | | | | - Carmen de Torres
- Developmental Tumor Biology Laboratory and Department of Oncology, Hospital Sant Joan de Déu Barcelona
| | - Sanja Aveic
- Neuroblastoma Laboratory, Fondazione Istituto di Ricerca Pediatrica Citta della Speranza
| | | | - Achille Iolascon
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II
| | - Mario Capasso
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II
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Wang J, Yang L, Li Y, Wang XB, Yang W, Liu F, Wu XB. Aberrant hypermethylation induced downregulation of antisense lncRNA STXBP5-AS1 and its sense gene STXBP5 correlate with tumorigenesis of glioma. Life Sci 2021; 278:119590. [PMID: 33965377 DOI: 10.1016/j.lfs.2021.119590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 10/21/2022]
Abstract
AIMS The expression of antisense lncRNA STXBP5-AS1 and its sense gene STXBP5 were found to be downregulated in glioma by RNA sequencing; however, the function and mechanism of both two genes in the development of glioma have not been studied. MATERIALS AND METHODS QRT-PCR and western blot were used to determine the transcriptional and translational levels of moleculars. MSP and BSP assays were used to evaluate the methylation status of promoter CpG island. MTT, EdU, flow cytometry, and transwell assays were used to reveal biological effects. The in vivo mice model was used to validate the role of target genes in tumorigenesis. KEY FINDINGS The mRNA and protein expression of STXBP5 was significantly downregulated in glioma tissues and positively correlated with prognosis. STXBP5-AS1 was downregulated in glioma cells and tissues, and associated with tumor size and clinical stages. Both of two genes were significantly restored in cells treatment with 5-Aza. The promoter CpG island of STXBP5/STXBP5-AS1 was hypermethylated in glioma cells, but partially methylated in NHA cells. We found that promoter methylation frequency was significantly higher in glioma tissues. Functionally, overexpression of STXBP5 and STXBP5-AS1 inhibited cell proliferation, migration, and invasion and promoted apoptosis in vitro, whereas depletion of STXBP5 and STXBP5-AS1 showed opposite effects. Both the mRNA and protein expression of STXBP5 were positively regulated by STXBP5-AS1. Ectopic expression of STXBP5 and STXBP5-AS1 suppressed tumor formation in vivo. SIGNIFICANCE Our findings suggested that epigenetically silenced STXBP5-AS1 and STXBP5 might act as novel tumor suppressors of glioma.
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Affiliation(s)
- Jing Wang
- Department of Laboratory Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, China
| | - Lei Yang
- Department of Medical Engineering, Shandong Provincial Hospital Affiliated to Shandong First Medical University; Jinan, Shandong 250000, China
| | - Yuan Li
- Department of Laboratory Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, China
| | - Xing-Bang Wang
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, Shandong 250000, China
| | - Wei Yang
- Department of Neurological Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, China
| | - Fang Liu
- Department of Laboratory Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, China
| | - Xiao-Ben Wu
- Department of Laboratory Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, China.
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Son SW, Yun BD, Song MG, Lee JK, Choi SY, Kuh HJ, Park JK. The Hypoxia-Long Noncoding RNA Interaction in Solid Cancers. Int J Mol Sci 2021; 22:ijms22147261. [PMID: 34298879 PMCID: PMC8307739 DOI: 10.3390/ijms22147261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 02/07/2023] Open
Abstract
Hypoxia is one of the representative microenvironment features in cancer and is considered to be associated with the dismal prognosis of patients. Hypoxia-driven cellular pathways are largely regulated by hypoxia-inducible factors (HIFs) and notably exert influence on the hallmarks of cancer, such as stemness, angiogenesis, invasion, metastasis, and the resistance towards apoptotic cell death and therapeutic resistance; therefore, hypoxia has been considered as a potential hurdle for cancer therapy. Growing evidence has demonstrated that long noncoding RNAs (lncRNAs) are dysregulated in cancer and take part in gene regulatory networks owing to their various modes of action through interacting with proteins and microRNAs. In this review, we focus attention on the relationship between hypoxia/HIFs and lncRNAs, in company with the possibility of lncRNAs as candidate molecules for controlling cancer.
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Affiliation(s)
- Seung Wan Son
- Department of Biomedical Science, Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (S.W.S.); (B.D.Y.); (M.G.S.); (J.K.L.); (S.Y.C.)
| | - Ba Da Yun
- Department of Biomedical Science, Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (S.W.S.); (B.D.Y.); (M.G.S.); (J.K.L.); (S.Y.C.)
| | - Mun Gyu Song
- Department of Biomedical Science, Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (S.W.S.); (B.D.Y.); (M.G.S.); (J.K.L.); (S.Y.C.)
| | - Jin Kyeong Lee
- Department of Biomedical Science, Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (S.W.S.); (B.D.Y.); (M.G.S.); (J.K.L.); (S.Y.C.)
| | - Soo Young Choi
- Department of Biomedical Science, Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (S.W.S.); (B.D.Y.); (M.G.S.); (J.K.L.); (S.Y.C.)
| | - Hyo Jeong Kuh
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Jong Kook Park
- Department of Biomedical Science, Research Institute for Bioscience & Biotechnology, Hallym University, Chunchon 24252, Korea; (S.W.S.); (B.D.Y.); (M.G.S.); (J.K.L.); (S.Y.C.)
- Correspondence: ; Tel.: +82-33-248-2114
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Non-Coding RNAs as Biomarkers of Tumor Progression and Metastatic Spread in Epithelial Ovarian Cancer. Cancers (Basel) 2021; 13:cancers13081839. [PMID: 33921525 PMCID: PMC8069230 DOI: 10.3390/cancers13081839] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/08/2021] [Accepted: 04/08/2021] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Despite advances in cancer research in recent years, efficient predictive biomarkers of tumor progression and metastatic spread for ovarian cancer are still missing. Therefore, we critically address recent findings in the field of non-coding RNAs (microRNAs and long non-coding RNAs) and DNA methylation in ovarian cancer patients as promising novel biomarkers of ovarian cancer progression. Abstract Ovarian cancer is one of the most common causes of death among gynecological malignancies. Molecular changes occurring in the primary tumor lead to metastatic spread into the peritoneum and the formation of distant metastases. Identification of these changes helps to reveal the nature of metastases development and decipher early biomarkers of prognosis and disease progression. Comparing differences in gene expression profiles between primary tumors and metastases, together with disclosing their epigenetic regulation, provides interesting associations with progression and metastasizing. Regulatory elements from the non-coding RNA families such as microRNAs and long non-coding RNAs seem to participate in these processes and represent potential molecular biomarkers of patient prognosis. Progress in therapy individualization and its proper targeting also rely upon a better understanding of interactions among the above-listed factors. This review aims to summarize currently available findings of microRNAs and long non-coding RNAs linked with tumor progression and metastatic process in ovarian cancer. These biomolecules provide promising tools for monitoring the patient’s response to treatment, and further they serve as potential therapeutic targets of this deadly disease.
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Gu X, Zheng Q, Chu Q, Zhu H. HAND2-AS1: A functional cancer-related long non-coding RNA. Biomed Pharmacother 2021; 137:111317. [PMID: 33556872 DOI: 10.1016/j.biopha.2021.111317] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/15/2021] [Accepted: 01/21/2021] [Indexed: 12/15/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) regulate gene expression and carcinogenesis. The lncRNA heart and neural crest derivatives expressed transcript 2 antisense RNA 1 (HAND2‑AS1) suppresses tumor growth, and its expression level was lower in tumor tissues than in adjacent normal tissues of most types of human cancers, including non-small cell lung cancer, ovarian cancer, breast cancer, gastric cancer, colorectal cancer, cervical cancer, endometrial cancer, prostate cancer, and esophagus squamous cell carcinoma. However, one study reported that the HAND2‑AS1 expression was upregulated in hepatocellular carcinoma tissues comparing with non-tumor tissues and it promoted tumor development. The aberrant expression of HAND2-AS1 was strongly linked to tumor progression and prognosis. Moreover, HAND2-AS1 was involved in tumor cell proliferation, differentiation, apoptosis, and cellular glucose metabolism. This review summarizes data on the expression profile, functions, underlying mechanism, and clinical value of HAND2-AS1 in cancer. The expression profile of HAND2-AS1 in 33 tumors was evaluated by bioinformatics analysis of The Cancer Genome Atlas.
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Affiliation(s)
- Xinyu Gu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China
| | - Qiuxian Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China
| | - Qingfei Chu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China
| | - Haihong Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310003, China.
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15
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Si Z, Zhou S, Shen Z, Luan F, Yan J. lncRNA HAND2-AS1 is downregulated in osteoarthritis and regulates IL-6 expression in chondrocytes. J Orthop Surg Res 2021; 16:68. [PMID: 33468183 PMCID: PMC7816418 DOI: 10.1186/s13018-021-02216-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 01/06/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a leading cause of disability. The incidence of OA is progressively rising due to the diminishing levels of physical activity and ever-expanding aging population. However, the mainstay for OA treatment only can improve symptoms without delay the progression of this severe disease. This study aimed to explore the biological role and clinical function of lncRNA HAND2-AS1 in OA. METHODS Blood samples and synovial fluid were collected from OA patients and normal subjects. HAND2-AS1 expression was detected by qRT-PCR and IL-6 expression was detected by ELISA. The plasma levels of HAND2-AS1 were also detected in different ages, stages, and gender of OA patients and controls. Furthermore, the ROC curve was used to analyze whether HAND2-AS1 can distinguish OA patients from normal subjects. Also, Pearson correlation coefficient analysis was used to analyze the correlation between lncRNA HAND2-AS1 and IL-6. In addition, Western blot was used to detect the IL-6 level upon HAND2-AS1 over-expression in chondrocytes and qRT-PCR was used to detect the HAND2-AS1 level after endogenous IL-6 treatment. RESULTS HAND2-AS1 and IL-6 were dysregulated in plasma and synovial fluid of OA patients. The expression of HAND2-AS1 in plasma of OA patients was decreased with aging and progression. Furthermore, HAND2-AS1 downregulation effectively distinguished OA patients from the healthy controls. Over-expression of HAND2-AS1 inhibited IL-6 expression in chondrocytes, while treatment with exogenous IL-6 did not affect HAND2-AS1 expression. CONCLUSION HAND2-AS1 effectively distinguished OA patients from the healthy controls and regulates IL-6 expression in human chondrocytes. TRIAL REGISTRATION ChiCTR, ChiCTR2000038635 . Registered 11 February 2019.
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Affiliation(s)
- Zhenxing Si
- Orthopedic Department, Second Affiliated Hospital of Harbin Medical University, No. 148 Baojian Road, Nangang District, Harbin, Heilongjiang, China
| | - Shifeng Zhou
- Surgical Emergency, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zilong Shen
- Orthopedic Department, Second Affiliated Hospital of Harbin Medical University, No. 148 Baojian Road, Nangang District, Harbin, Heilongjiang, China
| | - Feiyu Luan
- Surgical Emergency, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jinglong Yan
- Orthopedic Department, Second Affiliated Hospital of Harbin Medical University, No. 148 Baojian Road, Nangang District, Harbin, Heilongjiang, China.
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LncRNAs in Ovarian Cancer Progression, Metastasis, and Main Pathways: ceRNA and Alternative Mechanisms. Int J Mol Sci 2020; 21:ijms21228855. [PMID: 33238475 PMCID: PMC7700431 DOI: 10.3390/ijms21228855] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022] Open
Abstract
Ovarian cancer (OvCa) develops asymptomatically until it reaches the advanced stages with metastasis, chemoresistance, and poor prognosis. Our review focuses on the analysis of regulatory long non-coding RNAs (lncRNAs) competing with protein-coding mRNAs for binding to miRNAs according to the model of competitive endogenous RNA (ceRNA) in OvCa. Analysis of publications showed that most lncRNAs acting as ceRNAs participate in OvCa progression: migration, invasion, epithelial-mesenchymal transition (EMT), and metastasis. More than 30 lncRNAs turned out to be predictors of survival and/or response to therapy in patients with OvCa. For a number of oncogenic (CCAT1, HOTAIR, NEAT1, and TUG1 among others) and some suppressive lncRNAs, several lncRNA/miRNA/mRNA axes were identified, which revealed various functions for each of them. Our review also considers examples of alternative mechanisms of actions for lncRNAs besides being ceRNAs, including binding directly to mRNA or protein, and some of them (DANCR, GAS5, MALAT1, and UCA1 among others) act by both mechanisms depending on the target protein. A systematic analysis based on the data from literature and Panther or KEGG (Kyoto Encyclopedia of Genes and Genomes) databases showed that a significant part of lncRNAs affects the key pathways involved in OvCa metastasis, EMT, and chemoresistance.
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