1
|
Li D, Wan M, Liu X, Ojha SC, Sheng Y, Li Y, Sun C, Deng C. PART1 facilitates tumorigenesis and inhibits ferroptosis by regulating the miR-490-3p/SLC7A11 axis in hepatocellular carcinoma. Aging (Albany NY) 2024; 16:11339-11358. [PMID: 39029955 PMCID: PMC11315397 DOI: 10.18632/aging.206009] [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: 10/13/2023] [Accepted: 06/10/2024] [Indexed: 07/21/2024]
Abstract
BACKGROUND Ferroptosis is associated with cancer progression and has a promising application for treating hepatocellular carcinoma (HCC). Long non-coding RNA (lncRNA) participates widely in the regulation of ferroptosis, but the key lncRNA regulators implicated in ferroptosis and their molecular mechanisms remain to be identified. METHODS Bioinformatic analysis was performed in R based on The Cancer Genome Atlas Program (TCGA) public database. The relative expression of genes was detected by real-time quantitative PCR. Cell viability was assessed by the CCK8 assay. The cell cycle and apoptosis were detected by flow cytometry. Migration and invasion of HCC cells were detected by Transwell assay and wound healing assay. Expression of relevant proteins was detected by Western blotting. A dual-luciferase reporter assay was used to detect interactions between PART1 (or SLC7A11) and miR-490-3p. RESULTS The PART1/miR-490-3p/SLC7A11 axis was identified as a potential regulatory pathway of ferroptosis in HCC. PART1 silencing reduced HCC cell proliferation, migration, and metastasis and promoted apoptosis and erastin-reduced ferroptosis. Further investigation revealed that PART1 acted as a competitive endogenous RNA (ceRNA) for miR-490-3p to enhance SLC7A11 expression. Overexpression of miR-490-3p downregulated the expression of SLC7A11, inhibiting the proliferation, invasion, and metastasis of HCC cells while promoting apoptosis and erastin-induced ferroptosis. Knockdown of PART1 in HCC cells significantly improved the sensitivity of HCC cells to sorafenib. CONCLUSION Our results revealed that the PART1/miR-490-3p/SLC7A11 axis enhances HCC cell malignancy and suppresses ferroptosis, which provides a new perspective for understanding of the function of long chain non-coding RNAs in HCC. The PART1/miR-490-3p/SLC7A11 axis may be target for improving sorafenib sensitivity in HCC.
Collapse
Affiliation(s)
- Decheng Li
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Meiling Wan
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xiaoling Liu
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Suvash Chandra Ojha
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yunjian Sheng
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Yaling Li
- Department of Pharmacy, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Changfeng Sun
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Cunliang Deng
- Department of Infectious Diseases, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
- Laboratory of Infection and Immunity, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China
| |
Collapse
|
2
|
Dey S, Biswas B, Manoj Appadan A, Shah J, Pal JK, Basu S, Sur S. Non-Coding RNAs in Oral Cancer: Emerging Roles and Clinical Applications. Cancers (Basel) 2023; 15:3752. [PMID: 37568568 PMCID: PMC10417002 DOI: 10.3390/cancers15153752] [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: 06/07/2023] [Revised: 06/29/2023] [Accepted: 07/12/2023] [Indexed: 08/13/2023] Open
Abstract
Oral cancer (OC) is among the most prevalent cancers in the world. Certain geographical areas are disproportionately affected by OC cases due to the regional differences in dietary habits, tobacco and alcohol consumption. However, conventional therapeutic methods do not yield satisfying treatment outcomes. Thus, there is an urgent need to understand the disease process and to develop diagnostic and therapeutic strategies for OC. In this review, we discuss the role of various types of ncRNAs in OC, and their promising clinical implications as prognostic or diagnostic markers and therapeutic targets. MicroRNA (miRNA), long ncRNA (lncRNA), circular RNA (circRNA), PIWI-interacting RNA (piRNA), and small nucleolar RNA (snoRNA) are the major ncRNA types whose involvement in OC are emerging. Dysregulated expression of ncRNAs, particularly miRNAs, lncRNAs, and circRNAs, are linked with the initiation, progression, as well as therapy resistance of OC via modulation in a series of cellular pathways through epigenetic, transcriptional, post-transcriptional, and translational modifications. Differential expressions of miRNAs and lncRNAs in blood, saliva or extracellular vesicles have indicated potential diagnostic and prognostic importance. In this review, we have summarized all the promising aspects of ncRNAs in the management of OC.
Collapse
Affiliation(s)
| | | | | | | | | | - Soumya Basu
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth (DPU), Pimpri 411033, India; (S.D.)
| | - Subhayan Sur
- Cancer and Translational Research Centre, Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Dr. D. Y. Patil Vidyapeeth (DPU), Pimpri 411033, India; (S.D.)
| |
Collapse
|
3
|
Ma F, He H, Chen S, Yu X, Liu Q, Zeng X. Associations of PART1 and DEFB1 polymorphisms with Dental Caries in twelve-year-old children in Southern China: a cross-sectional study. BMC Pediatr 2023; 23:6. [PMID: 36597064 PMCID: PMC9811700 DOI: 10.1186/s12887-022-03678-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 09/12/2022] [Accepted: 10/18/2022] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE The aim of this study was to assess associations of PART1 rs27565 and DEFB1 rs11362 polymorphisms with the prevalence of dental caries in twelve-year-old children in Nandan County, Guangxi, China. METHODS A total of 1,061 children were included in this cross-sectional study and divided into two groups based on the Decayed, Missing and Filled teeth (DMFT) index: caries-free children (DMFT score = 0) and children with caries (DMFT score ≥ 1). Demographic characteristics, oral hygiene behaviour and dietary habits were collected through household records and questionnaires. Genomic DNA was extracted from buccal cells, and PART1 rs27565 and DEFB1 rs11362 polymorphisms were genotyped using a custom-designed 48-Plex single nucleotide polymorphism-scan kit. RESULTS Carriers of the PART1 rs27565 C allele (odds ratio [OR] = 1.338, 95% confidence interval (CI) = 1.015-1.764, P value = 0.039) and carriers of the DEFB1 rs11362 T allele (OR = 1.364, 95% CI = 1.056-1.762, P value = 0.017) had a higher risk of caries. Carriers of the PART1 rs27565 TC or CC genotype who ate sugary food more than once a week had a 1.6-fold higher risk of caries than TT carriers who ate sugary food at most once a week (OR = 1.579, 95% CI = 1.032-2.414, P value = 0.035). Carriers of the DEFB1 rs11362 CT or TT genotype who ate sugary food more than once a week had a 2.1-fold higher risk of caries than CC carriers who ate sugary food at most once a week (OR = 2.057, 95% CI = 1.438-2.940, P value < 0.001). CONCLUSION PART1 rs27565 and DEFB1 rs11362 polymorphisms were associated with caries in 12-year-old children in Nandan County, Guangxi, China. Carriers of the PART1 rs27565 TC or CC genotype and the DEFB1 rs11362 CT or TT genotype who ate sugary food more than once a week had a high probability of having caries.
Collapse
Affiliation(s)
- Fei Ma
- grid.256607.00000 0004 1798 2653Department of Dental Public Health, College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, 530021 Nanning, Guangxi China
| | - Haoyu He
- grid.256607.00000 0004 1798 2653Department of Dental Public Health, College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, 530021 Nanning, Guangxi China
| | - Shaoyong Chen
- grid.256607.00000 0004 1798 2653Department of Dental Public Health, College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, 530021 Nanning, Guangxi China
| | - Xueting Yu
- grid.256607.00000 0004 1798 2653Department of Dental Public Health, College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, 530021 Nanning, Guangxi China
| | - Qiulin Liu
- grid.256607.00000 0004 1798 2653Department of Dental Public Health, College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, 530021 Nanning, Guangxi China
| | - Xiaojuan Zeng
- grid.256607.00000 0004 1798 2653Department of Dental Public Health, College of Stomatology, Hospital of Stomatology, Guangxi Medical University, No. 10 Shuangyong Road, 530021 Nanning, Guangxi China ,Guangxi Health Commission Key Laboratory of Prevention and Treatment for Oral Infectious Diseases, Nanning, Guangxi China
| |
Collapse
|
4
|
Ghafouri-Fard S, Harsij A, Hussen BM, Abdullah SR, Baniahmad A, Taheri M, Sharifi G. A review on the role of long non-coding RNA prostate androgen-regulated transcript 1 (PART1) in the etiology of different disorders. Front Cell Dev Biol 2023; 11:1124615. [PMID: 36875771 PMCID: PMC9974648 DOI: 10.3389/fcell.2023.1124615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/06/2023] [Indexed: 02/17/2023] Open
Abstract
LncRNA prostate androgen-regulated transcript 1 (PART1) is an important lncRNA in the carcinogenesis whose role has been firstly unraveled in prostate cancer. Expression of this lncRNA is activated by androgen in prostate cancer cells. In addition, this lncRNA has a role in the pathogenesis intervertebral disc degeneration, myocardial ischemia-reperfusion injury, osteoarthritis, osteoporosis and Parkinson's disease. Diagnostic role of PART1 has been assessed in some types of cancers. Moreover, dysregulation of PART1 expression is regarded as a prognostic factor in a variety of cancers. The current review provides a concise but comprehensive summary of the role of PART1 in different cancers and non-malignant disorders.
Collapse
Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Harsij
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Kurdistan Region, Iraq
| | - Snur Rasool Abdullah
- Medical Laboratory Science, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Mohammad Taheri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Guive Sharifi
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
5
|
High level of LncRNA MAPKAPK5-AS1 predicts poor prognosis and contributes to the malignant proliferation and EMT of non-small cell lung cancer via sponging miR-490-3p from HMGB2. Genes Genomics 2022; 45:611-625. [PMID: 36445573 DOI: 10.1007/s13258-022-01339-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/22/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Patients with non-small cell lung cancer (NSCLC) show a low survival rate, owing to the lack of early diagnostic method and high invasiveness. Long non-coding RNA MAPKAPK5-AS1 that regulates tumor genesis and progression through multiple signals, is upregulated and involved in the growth and apoptosis in lung adenocarcinoma (LUAD). OBJECTIVE To investigate whether MAPKAPK5-AS1 affected the malignant progression of NSCLC. METHODS The levels of MAPKAPK5-AS1, miR-490-3p and HMGB2 in lung cancer were first analyzed through StarBase website, and confirmed by a quantitative reverse transcriptase-PCR (qRT-PCR) assay. The biological functions of NSCLC cells were examined by CCK-8, 5-ethynyl-2'-deoxyuridine (EdU) and flow cytometry assays. The potential binding sequences lncRNA-miRNA and miRNA-mRNA were predicted by StarBase software and verified via dual luciferase reporter experiment. The effects of MAPKAPK5-AS1 on tumor growth were evaluated in a xenografted mice model. RESULTS The expression of MAPKAPK5-AS1 was upregulated in tumor tissues from NSCLC patients. Patients with high expression of MAPKAPK5-AS1 had higher tumor size, advanced TNM stage, higher incidence of lymph node and distant metastasis, and shorter overall survival. Knockdown of MAPKAPK5-AS1 inhibited the proliferation, induced apoptosis and blocked epithelial mesenchymal transformation (EMT) of NSCLC cells. Mechanically, MAPKAPK5-AS1 could upregulate the HMGB2 level in NSCLC cells through competitively binding to miR-490-3p. MiR-490-3p inhibitor reversed the roles of MAPKAPK5-AS1 knockdown on tumor cell proliferation, apoptosis and EMT. Also, HMGB2 knockdown suppressed tumor cell malignant phenotypes. Furthermore, interference of MAPKAPK5-AS1 slowed NSCLC tumor growth in vivo. CONCLUSION Knockdown of MAPKAPK5-AS1 inhibited the aggressive tumor phenotypes through miR-490-3p/HMGB2 axis in NSCLC. MAPKAPK5-AS1/miR-490-3p/HMGB2 might be potential biomarkers or therapeutic targets for NSCLC.
Collapse
|
6
|
Zhao YY, Xiang QM, Chen JL, Zhang L, Zheng WL, Ke D, Shi RS, Yang KW. SLC25A25-AS1 over-expression could be predicted the dismal prognosis and was related to the immune microenvironment in prostate cancer. Front Oncol 2022; 12:990247. [PMID: 36338724 PMCID: PMC9632290 DOI: 10.3389/fonc.2022.990247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 09/20/2022] [Indexed: 07/23/2023] Open
Abstract
It has been established that long-chain coding RNA (lncRNA) SLC25A25-AS1 is associated with cancer progression. However, the roles and mechanisms of SLC25A25-AS1 in prostate cancer (PC) have not been reported in the literature. The present study explored the relationship between SLC25A25-AS1 expression and PC progression via comprehensive analysis. The pan-cancer expression of SLC25A25-AS1 was identified using data from The Cancer Genome Atlas (TCGA) database and tissue specimens from our hospital. The expression levels of SLC25A25-AS1 in various subgroups based on the clinical features were identified. The prognostic value of SLC25A25-AS1 and SLC25A25-AS1 co-expressed lncRNAs in PC patients was assessed by survival analysis and ROC analysis, and prognosis-related risk models of SLC25A25-AS1 were constructed. The relationship between SLC25A25-AS1 and the PC immune microenvironment was investigated using correlation analysis. SLC25A25-AS1 expression in PC was significantly increased and correlated with the T stage, clinical stage, Gleason score (GS), and dismal prognosis. SLC25A25-AS1 overexpression exhibited good performance in evaluating the prognosis of PC patients. The area under the curves (AUCs) of the 1-, 3-, and 5-year overall survival (OS) for SLC25A25-AS1 was 1, 0.876, and 0.749. Moreover, the AUCs for the 1-, 3-, and 5-year progress free interval (PFI) for SLC25A25-AS1 were 0.731, 0.701, and 0.718. SLC25A25-AS1 overexpression correlated with the infiltration of CD8 T cells, interstitial dendritic cells (IDC), macrophages and other cells. AC020558.2, ZNF32-AS2, AP4B1-AS1, AL355488.1, AC109460.3, SNHG1, C3orf35, LMNTD2-AS1, and AL365330.1 were significantly associated with SLC25A25-AS1 expression, and short OS and PFI in PC patients. The risk models of the SLC25A25-AS1-related lncRNAs were associated with a dismal prognosis in PC. Overall, SLC25A25-AS1 expression was increased in PC and related to the prognosis and PC immune microenvironment. The risk model of SLC25A25-AS1 have huge prospect for application as prognostic tools in PC.
Collapse
Affiliation(s)
- Ying-Ying Zhao
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Radiology, Fuqing City Hospital Affiliated to Fujian Medical University, Fuqing, China
| | - Qian-Ming Xiang
- Department of General Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jia-Li Chen
- Department of Radiology, Fuqing City Hospital Affiliated to Fujian Medical University, Fuqing, China
| | - Li Zhang
- Department of Radiology, Fuqing City Hospital Affiliated to Fujian Medical University, Fuqing, China
| | - Wei-Long Zheng
- Department of Radiology, Fuqing City Hospital Affiliated to Fujian Medical University, Fuqing, China
| | - Di Ke
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Rong-Shu Shi
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Kong-Wu Yang
- Department of Radiology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| |
Collapse
|
7
|
Ran R, Gong CY, Wang ZQ, Zhou WM, Zhang SB, Shi YQ, Ma CW, Zhang HH. Long non‑coding RNA PART1: dual role in cancer. Hum Cell 2022; 35:1364-1374. [PMID: 35864416 DOI: 10.1007/s13577-022-00752-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 07/14/2022] [Indexed: 12/24/2022]
Abstract
Increasing evidence has shown that long non-coding RNAs (lncRNAs), which are non-coding endogenous single-stranded RNAs, play an essential role in various physiological and pathological processes through transcriptional interference, post-transcriptional regulation, and epigenetic modification. Moreover, lncRNAs, as oncogenes or tumor suppressor genes, play an important role in the occurrence and development of human cancers. Prostate androgen-regulated transcript 1 (PART1) was initially identified as a carcinogenic lncRNA in prostate adenomas. The upregulated expression of PART1 plays a tumor-promoting role in liver, prostate, lung cancers, and other tumors. In contrast, the expression of PART1 is downregulated in esophageal squamous cell carcinoma, glioma, and other tumors, which may inhibit the tumor. PART1 plays a dual role in cancer and regulates cell proliferation, apoptosis, invasion, and metastasis through a variety of potential mechanisms. These findings suggest that PART1 is a promising tumor biomarker and therapeutic target. This article reviews the biological functions, related mechanisms, and potential clinical significance of PART1 in a variety of human cancers.
Collapse
Affiliation(s)
- Rui Ran
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Chao-Yang Gong
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Zhi-Qiang Wang
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Wen-Ming Zhou
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Shun-Bai Zhang
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Yong-Qiang Shi
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Chun-Wei Ma
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.,Orthopaedics Key Laboratory of Gansu Province, Lanzhou, 730000, People's Republic of China
| | - Hai-Hong Zhang
- Lanzhou University Second Hospital, 82 Cuiying Men, Lanzhou, 730000, People's Republic of China.
| |
Collapse
|
8
|
Leng F, Miu YY, Zhang Y, Luo H, Lu XL, Cheng H, Zheng ZG. A micro-peptide encoded by HOXB-AS3 promotes the proliferation and viability of oral squamous cell carcinoma cell lines by directly binding with IGF2BP2 to stabilize c-Myc. Oncol Lett 2021; 22:697. [PMID: 34457052 PMCID: PMC8358592 DOI: 10.3892/ol.2021.12958] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/18/2021] [Indexed: 12/20/2022] Open
Abstract
HOXB-AS3 is a long non-coding RNA and recent studies have shown that the HOXB-AS3-encoded micro-peptide was associated with the progression of colon cancer tumorigenesis; however, the biofunction of HOXB-AS3 varies in different types of cancer and the potential function in oral squamous cell carcinoma (OSCC) is still unknown. The Cancer Genome Atlas (TCGA) database was searched and the expression patterns of HOXB-AS3 in head and neck carcinoma were analyzed. Reverse transcription-quantitative PCR and western blot analysis was used to measure the mRNA and protein expression level of HOXB-AS3 in patients with OSCC, respectively. Next, HOXB-AS3 was knocked down in 2 OSCC cell lines to investigate the biological function of the HOXB-AS3-encoded protein using a Cell Counting Kit-8 and colony formation assays. To further identify the potential mechanism of the HOXB-AS3-encoded protein, co-immunoprecipitation was also used to detect the interaction between HOXB-AS3 and IGF2BP2, while HOXB-AS3 was re-expressed to determine whether the HOXB-AS3-encoded protein and not HOXB-AS3 exerted its function in OSCC. HOXB-AS3 was upregulated in OSCC tissues, in both TCGA database and in patients with OSCC recruited into the present study. HOXB-AS3 was associated with poor prognosis in OSCC. The proliferation and viability decreased in the 2 OSCC cell lines following knock down of HOXB-AS3. HOXB-AS3 was also found to encode a protein that directly interacted with IGF2BP2 and thereby promoted the stability of c-myc. Taken together, the results from the present study indicated that increased HOXB-AS3 expression was associated with poor prognosis in OSCC. This indicated that HOXB-AS3 and its encoded protein promoted OSCC cell proliferation and viability by maintaining c-Myc mRNA stability by directly binding to IGF2BP2.
Collapse
Affiliation(s)
- Fei Leng
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| | - Yan-Yu Miu
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| | - Yi Zhang
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| | - Hao Luo
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| | - Xiao-Li Lu
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| | - Hui Cheng
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| | - Zhi-Guo Zheng
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Nanchang, Jiangxi 330006, P.R. China
| |
Collapse
|