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Wang H, Gao Y, Bai J, Liu H, Li Y, Zhang J, Ma C, Zhao X, Zhang L, Wan K, Zhu D. CircLMBR1 Inhibits Phenotypic Transformation of Hypoxia-induced Pulmonary Artery Smooth Muscle via the Splicing Factor PUF60. Eur J Pharmacol 2024:176855. [PMID: 39059570 DOI: 10.1016/j.ejphar.2024.176855] [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: 04/15/2024] [Revised: 07/04/2024] [Accepted: 07/24/2024] [Indexed: 07/28/2024]
Abstract
Phenotypic transformation of pulmonary artery smooth muscle cells (PASMCs) contributes to vascular remodeling in hypoxic pulmonary hypertension (PH). Recent studies have suggested that circular RNAs (circRNAs) may play important roles in the vascular remodeling of hypoxia-induced PH. However, whether circRNAs cause pulmonary vascular remodeling by regulating the phenotypic transformation in PH has not been investigated. Microarray and RT-qPCR analysis identified that circLMBR1, a novel circRNA, decreased in mouse lung tissues of the hypoxia-SU5416 PH model, as well as in human PASMCs and mouse PASMCs exposed to hypoxia. Overexpression of circLMBR1 in the Semaxinib (SU5416) mouse model ameliorated hypoxia-induced PH and vascular remodeling in the lungs. Notably, circLMBR1 was mainly distributed in the nucleus and bound to the splicing factor PUF60. CircLMBR1 suppressed the phenotypic transformation of human PASMCs and vascular remodeling by inhibiting PUF60 expression. Furthermore, we identified U2AF65 as the downstream regulatory factor of PUF60. U2AF65 directly interacted with the pre-mRNA of the contractile phenotype marker smooth muscle protein 22-α (SM22α) and inhibited its splicing. Meanwhile, hypoxia exposure increased the formation of the PUF60-U2AF65 complex, thereby inhibiting SM22α production and inducing the transition of human PASMCs from a contractile phenotype to a synthetic phenotype. Overall, our results verified the important role of circLMBR1 in the pathological process of PH. We also proposed a new circLMBR1/PUF60-U2AF65/pre-SM22α pathway that could regulate the phenotypic transformation and proliferation of human PASMCs. This study may provide new perspectives for the diagnosis and treatment of PH.
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Affiliation(s)
- Hongdan Wang
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China
| | - Yupei Gao
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China
| | - June Bai
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China
| | - Huiyu Liu
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China
| | - Yiying Li
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China
| | - Junting Zhang
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China
| | - Cui Ma
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, P. R. China
| | - Xijuan Zhao
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, P. R. China
| | - Lixin Zhang
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, P. R. China
| | - Kuiyu Wan
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China
| | - Daling Zhu
- Central Laboratory of Harbin Medical University (Daqing), Daqing 163319, P. R. China; College of Pharmacy, Harbin Medical University, Harbin, 150081, P. R. China; Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Harbin Medical University, Harbin, 150081, P. R. China.
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Lei P, Guo Q, Hao J, Liu H, Chen Y, Wu F, He Z, Zhang X, Zhang N, Wen S, Gao W, Wu Y. Exploring the evolving roles and clinical significance of circRNAs in head and neck squamous cell carcinoma. J Cancer 2024; 15:3984-3994. [PMID: 38911371 PMCID: PMC11190751 DOI: 10.7150/jca.96614] [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: 03/25/2024] [Accepted: 05/13/2024] [Indexed: 06/25/2024] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) represents the predominant malignancies in the head and neck region, and has limited therapeutic alternatives. Circular RNAs (circRNAs), a substantial category of non-coding RNA molecules, exert influential roles in human disease development and progression, employing various mechanisms such as microRNA sponging, interaction with RNA-binding proteins, and translational capabilities. Accumulating evidence highlights the differential expression of numerous circRNAs in HNSCC, and numerous dysregulated circRNAs underscore their crucial involvement in malignant advancement and resistance to treatment. This review aims to comprehensively outline the characteristics, biogenesis, and mechanisms of circRNAs, elucidating their functional significance in HNSCC. In addition, we delve into the clinical implications of circRNAs, considering their potential as biomarkers or targets for diagnosis, prognosis, and therapeutic applications in HNSCC. The discussion extends to exploring future challenges in the clinical translation of circRNAs, emphasizing the need for further research.
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Affiliation(s)
- Pengxiang Lei
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Qingbo Guo
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, China
| | - Jiewen Hao
- Department of Otolaryngology Head & Neck Surgery, The Third Hospital of Shanxi Medical University (Shanxi Bethune Hospital), Taiyuan 030032, Shanxi, China
| | - Hui Liu
- Department of Hepatobiliary Surgery, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen 518055, Guangdong, China
| | - Yaofeng Chen
- Department of Otolaryngology Head & Neck Surgery, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen 518055, Guangdong, China
| | - Feng Wu
- Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Zhao He
- Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Xiaolong Zhang
- Shenzhen Research Institute, Northwest A&F University, Shenzhen 518000, Guangdong, China
| | - Nannan Zhang
- Department of Otolaryngology Head & Neck Surgery, Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen 518055, Guangdong, China
| | - Shuxin Wen
- Department of Otolaryngology Head & Neck Surgery, The Third Hospital of Shanxi Medical University (Shanxi Bethune Hospital), Taiyuan 030032, Shanxi, China
| | - Wei Gao
- Department of Otolaryngology Head & Neck Surgery, Longgang Otolaryngology Hospital, Shenzhen 518172, Guangdong, China
- Shenzhen Institute of Otolaryngology & Key Laboratory of Otolaryngology, Longgang Otolaryngology Hospital, Shenzhen 518172, Guangdong, China
| | - Yongyan Wu
- Shanxi Key Laboratory of Otorhinolaryngology Head and Neck Cancer, Department of Otolaryngology Head & Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, China
- Department of Otolaryngology Head & Neck Surgery, Longgang Otolaryngology Hospital, Shenzhen 518172, Guangdong, China
- Shenzhen Institute of Otolaryngology & Key Laboratory of Otolaryngology, Longgang Otolaryngology Hospital, Shenzhen 518172, Guangdong, China
- Shenzhen University General Hospital & Shenzhen University Clinical Medical Academy, Shenzhen University, Shenzhen 518055, Guangdong, China
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Liu M, Zhao R, Song X, Cheng H, Zhao Y, Xu Y, Liu S. High hsa_circ_0081621 expression indicates a poor prognosis of laryngeal squamous cell carcinoma: A bioinformatics analysis and retrospective clinical study. Oncol Lett 2023; 26:464. [PMID: 37780548 PMCID: PMC10534280 DOI: 10.3892/ol.2023.14051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/23/2023] [Indexed: 10/03/2023] Open
Abstract
Laryngeal squamous cell carcinoma (LSCC) is the second most common malignant tumour of the head and neck with a low 5-year survival rate. There is need to identify novel biomarkers for diagnosis and treatment of LSCC. The present study identified differentially expressed circular RNAs (circRNAs/circs) in LSCC and larynx adjacent non-carcinoma epithelial specimens by analysing the circRNA microarray dataset GSE117001. hsa_circ_0081621 had highest expression among three circRNAs (hsa_circ_0015211, hsa_circ_0023326 and hsa_circ_0081621) in LSCC specimens by reverse transcription-quantitative PCR. The expression levels of hsa_circ_0081621 in 67 LSCC specimens were detected by fluorescence in situ hybridization (FISH). Expression levels of hsa_circ_0081621 were analysed in relation to clinicopathological parameters and prognosis of patients with LSCC. According to FISH results, 59.7% of LSCC specimens exhibited high hsa_circ_0081621 expression. In LSCC specimens, hsa_circ_0081621 high expression was associated with lymph node metastasis and high clinical stage. High expression levels of hsa_circ_0081621 were associated with a poor 5-year overall survival rate in patients with LSCC. In addition, high hsa_circ_0081621 expression was an independent prognostic factor for patients with LSCC. hsa_circ_0081621 may participate in malignant progression of LSCC, and its high expression could be used for prognostic assessment of patients with LSCC.
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Affiliation(s)
- Meng Liu
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Ruili Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Xiaofei Song
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Hongkun Cheng
- Department of Otorhinolaryngology Head and Neck Surgery, The Third Hospital of Handan City, Handan, Hebei 056001, P.R. China
| | - Yan Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Yuru Xu
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
| | - Shenghui Liu
- Department of Otorhinolaryngology Head and Neck Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050017, P.R. China
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Mishra A, Bharti PS, Rani N, Nikolajeff F, Kumar S. A tale of exosomes and their implication in cancer. Biochim Biophys Acta Rev Cancer 2023; 1878:188908. [PMID: 37172650 DOI: 10.1016/j.bbcan.2023.188908] [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: 01/24/2023] [Revised: 05/01/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023]
Abstract
Cancer is a cause of high deaths worldwide and also a huge burden for the health system. Cancer cells have unique properties such as a high rate of proliferation, self-renewal, metastasis, and treatment resistance, therefore, the development of novel diagnoses of cancers is a tedious task. Exosomes are secreted by virtually all cell types and have the ability to carry a multitude of biomolecules crucial for intercellular communication, hence, contributing a crucial part in the onset and spread of cancer. These exosomal components can be utilized in the development of markers for diagnostic and prognostic purposes for various cancers. This review emphasized primarily the following topics: exosomes structure and functions, isolation and characterization strategies of exosomes, the role of exosomal contents in cancer with a focus in particular on noncoding RNA and protein, exosomes, and the cancer microenvironment interactions, cancer stem cells, and tumor diagnosis and prognosis based on exosomes.
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Affiliation(s)
- Abhay Mishra
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Prahalad Singh Bharti
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Neerja Rani
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Fredrik Nikolajeff
- Department of Health, Education, and Technology, Lulea University of Technology, 97187, Sweden
| | - Saroj Kumar
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi 110029, India; Department of Health, Education, and Technology, Lulea University of Technology, 97187, Sweden.
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Huber LT, Kraus JM, Ezić J, Wanli A, Groth M, Laban S, Hoffmann TK, Wollenberg B, Kestler HA, Brunner C. Liquid biopsy: an examination of platelet RNA obtained from head and neck squamous cell carcinoma patients for predictive molecular tumor markers. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:422-446. [PMID: 37455825 PMCID: PMC10344902 DOI: 10.37349/etat.2023.00143] [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: 11/16/2022] [Accepted: 03/01/2023] [Indexed: 07/18/2023] Open
Abstract
Aim Recently, a tumor cell-platelet interaction was identified in different tumor entities, resulting in a transfer of tumor-derived RNA into platelets, named further "tumor-educated platelets (TEP)". The present pilot study aims to investigate whether such a tumor-platelet transfer of RNA occurs also in patients suffering from head and neck squamous cell carcinoma (HNSCC). Methods Sequencing analysis of RNA derived from platelets of tumor patients (TPs) and healthy donors (HDs) were performed. Subsequently, quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used for verification of differentially expressed genes in platelets from TPs and HDs in a second cohort of patients and HDs. Data were analyzed by applying bioinformatic tools. Results Sequencing of RNA derived from the tumor as well as from platelets of TPs and HDs revealed 426 significantly differentially existing RNA, at which 406 RNA were more and 20 RNA less abundant in platelets from TPs in comparison to that of HDs. In TPs' platelets, abundantly existing RNA coding for 49 genes were detected, characteristically expressed in epithelial cells and RNA, the products of which are involved in tumor progression. Applying bioinformatic tools and verification on a second TP/HD cohort, collagen type I alpha 1 chain (COL1A1) and zinc finger protein 750 (ZNF750) were identified as the strongest potentially platelet-RNA-sequencing (RNA-seq)-based biomarkers for HNSCC. Conclusions These results indicate a transfer of tumor-derived messenger RNA (mRNA) into platelets of HNSCC patients. Therefore, analyses of a patient's platelet RNA could be an efficient option for liquid biopsy in order to diagnose HNSCC or to monitor tumorigenesis as well as therapeutic responses at any time and in real time.
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Affiliation(s)
- Lisa T. Huber
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Johann M. Kraus
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Jasmin Ezić
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Amin Wanli
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Marco Groth
- Leibniz Institute of Aging – Fritz Lipmann Institute, CF DNA sequencing, 07745 Jena, Germany
| | - Simon Laban
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Thomas K. Hoffmann
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
| | - Barbara Wollenberg
- Clinic for Otorhinolaryngology, Head and Neck Surgery, Technical University of Munich, 80333 Munich, Germany
| | - Hans A. Kestler
- Institute of Medical Systems Biology, Ulm University, 89081 Ulm, Germany
| | - Cornelia Brunner
- Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ulm University Medical Center, 89075 Ulm, Germany
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Meng X, Yang D, Zhang B, Zhao Y, Zheng Z, Zhang T. Regulatory mechanisms and clinical applications of tumor-driven exosomal circRNAs in cancers. Int J Med Sci 2023; 20:818-835. [PMID: 37213665 PMCID: PMC10198146 DOI: 10.7150/ijms.82419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/09/2023] [Indexed: 05/23/2023] Open
Abstract
Malignant tumors seriously affect people's survival and prognosis. Exosomes, as vesicle structures widely existing in human tissues and body fluids, are involved in cell-to-cell transmission. Tumor-derived exosomes were secreted from tumors and involved in the development of carcinogenesis. Circular RNA (circRNA), a novel member of endogenous noncoding RNAs, is widespread in human and play a vital role in many physiological or pathological processes. Tumor-driven exosomal circRNAs are often involved in tumorigenesis and development including the proliferation, invasion, migration and chemo-or-radiotherapy sensitivity of tumor cell by multiple regulatory mechanisms. In this review, we will elaborate the roles and functions of tumor-driven exosomal circRNAs in cancers which may be used as potential cancer biomarkers and novel therapeutic targets.
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Affiliation(s)
| | | | | | | | | | - Tao Zhang
- Department of Gastric Surgery, Cancer Hospital of China Medical University/Liaoning Cancer Hospital, Shenyang, Liaoning, China
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Feng H, Wang D, Liu J, Zou L, Xu S, Liang Z, Qin G. Diagnostic and prognostic value of circRNAs expression in head and neck squamous cell carcinoma: A meta-analysis. J Clin Lab Anal 2022; 36:e24496. [PMID: 35595945 PMCID: PMC9280010 DOI: 10.1002/jcla.24496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/16/2022] [Accepted: 04/27/2022] [Indexed: 12/22/2022] Open
Abstract
Background Circular RNAs (circRNAs) have been found to have potential biological applications against tumors in humans. This study aimed to evaluate the diagnostic, prognostic, and clinicopathological value of circRNAs in head and neck squamous cell carcinoma (HNSCC). Methods The PubMed, Web of Science, EMBASE, and the Cochrane Library were comprehensively searched for the relevant studies before October 20, 2021. Statistical analysis was performed based on STATA 15.0, Meta‐DiSc 1.4, and RevMan 5.3 software. Results A total of 55 reports regarding 56 kinds of circRNA were studied in this meta‐analysis, including 23, 38, and 26 articles on diagnosis, prognosis, and clinicopathological features, respectively. The pooled sensitivity, specificity, and area under the curve (AUC) of the summary receiver‐operating characteristic curve (SROC) were 0.78, 0.84, and 0.87, respectively. Besides, the upregulation of oncogenic circRNAs was significantly associated with poorer overall survival (OS) (HR=2.25, p < 0.05) and disease‐free interval (DFS) (HR=1.92, p < 0.05). In contrast, the elevated expression of tumor suppressor circRNAs was associated with a favorable prognosis (HR=0.50, p < 0.05). In addition, the high expression of oncogenic circRNAs was associated with the tumor size (OR=3.59, p < 0.05), degree of differentiation (OR=1.89, p < 0.05), TNM stage (OR=2.35, p < 0.05), lymph node metastasis (OR=1.85, p < 0.05), and distant metastasis (OR=3.42, p < 0.05). Moreover, the expression of tumor suppressor circRNAs was associated with improved clinicopathological features (lymph node metastasis: OR=0.25, p < 0.05). Conclusions CircRNAs could serve as potential predictive indicators and be useful for the diagnosis, prognosis, and identification of clinicopathological features in HNSCC.
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Affiliation(s)
- Huajun Feng
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Dingting Wang
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jinping Liu
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Longfei Zou
- Department of Orthopedic Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Shengen Xu
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zhuoping Liang
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Gang Qin
- Department of Otolaryngology Head and Neck Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Li S, Zhang Y, He Z, Xu Q, Li C, Xu B. Knockdown of circMYOF inhibits cell growth, metastasis, and glycolysis through miR-145-5p/OTX1 regulatory axis in laryngeal squamous cell carcinoma. Funct Integr Genomics 2022; 22:1-13. [PMID: 35474406 DOI: 10.1007/s10142-022-00862-8] [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: 12/30/2021] [Revised: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 11/28/2022]
Abstract
New evidence suggests that abnormal expression of circular RNA (circRNA) is associated with the development of human cancers. This study aims to reveal circMYOF roles in the malignant phenotype of laryngeal squamous cell carcinoma (LSCC). The expression of circMYOF, microRNA (miR)-145-5p, and orthodenticle homeobox 1 (OTX1) was detected by quantitative real-time PCR. Cell proliferation, migration, invasion, and apoptosis were determined using colony formation assay and EdU assay, wound healing assay, transwell assay, and flow cytometry, respectively. Protein expression was examined by western blot analysis. Cell glycolysis was assessed by detecting glucose consumption and lactate production. Mice xenograft models were constructed to evaluate the regulation of circMYOF on LSCC tumorigenesis. The regulatory relationships among circMYOF, miR-145-5p, and OTX1 were identified using dual-luciferase reporter assay and RIP assay. Serum exosomes were isolated to confirm the existence of circMYOF in LSCC patients. CircMYOF was upregulated in LSCC tissues and cells, and its knockdown suppressed LSCC cell growth, metastasis, and glycolysis, as well as inhibited LSCC tumor growth. MiR-145-5p had decreased expression in LSCC, and it could be sponged by circMYOF. The inhibition effect of circMYOF lentivirus short hairpin RNA (sh-circMYOF) on LSCC progression was restored by the inhibitor of miR-145-5p (in-miR-145-5p). Also, OTX1 was targeted by miR-145-5p and was positively regulated by circMYOF. MiR-145-5p could repress LSCC progression, and OTX1 overexpression also eliminated this effect. In addition, we found that circMYOF was significantly overexpressed in the serum exosomes of LSCC patients. Our data revealed that circMYOF contributed to LSCC progression by promoting cell growth, metastasis, and glycolysis through miR-145-5p/OTX1 axis.
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Affiliation(s)
- Shihua Li
- Department of ENT & HN Surgery, Stomatological Hospital affiliated to Kunming Medical University, Yunnan Province, Kunming, 650032, People's Republic of China.,Department of Acupuncture and Massage, Yuxi People's Hospital, Yunnan Province, Yuxi, 653199, People's Republic of China
| | - Ying Zhang
- Department of Acupuncture and Massage, Yuxi People's Hospital, Yunnan Province, Yuxi, 653199, People's Republic of China
| | - Zhongshun He
- Department of ENT & HN Surgery, Stomatological Hospital affiliated to Kunming Medical University, Yunnan Province, Kunming, 650032, People's Republic of China
| | - Qiannan Xu
- Department of Acupuncture and Massage, Yuxi People's Hospital, Yunnan Province, Yuxi, 653199, People's Republic of China
| | - Cailian Li
- Department of Acupuncture and Massage, Yuxi People's Hospital, Yunnan Province, Yuxi, 653199, People's Republic of China
| | - Biao Xu
- Department of Oral and Maxillofacial Surgery, Yuxi People's Hospital, Yunnan Province, 653100, Yuxi, People's Republic of China. .,, Kunming City, People's Republic of China.
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Ye D, Gong M, Deng Y, Fang S, Cao Y, Xiang Y, Shen Z. Roles and clinical application of exosomal circRNAs in the diagnosis and treatment of malignant tumors. J Transl Med 2022; 20:161. [PMID: 35382838 PMCID: PMC8981684 DOI: 10.1186/s12967-022-03367-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/26/2022] [Indexed: 02/07/2023] Open
Abstract
Exosomes are microvesicles secreted by cells. They contain a variety of bioactive substances with important roles in intercellular communication. Circular RNA (circRNA), a type of nucleic acid molecule found in exosomes, forms a covalently bonded closed loop without 5′ caps or 3′ poly(A) tails. It is structurally stable, widely distributed, and tissue specific. CircRNAs mainly act as microRNA sponges and have important regulatory roles in gene expression; they are superior to other non-coding RNAs as molecular diagnostic markers and drug treatment targets. Exosomal-derived circRNAs in the body fluids of tumor patients can modulate tumor proliferation, invasion, metastasis, and drug resistance. They can be used as effective biomarkers for early non-invasive diagnosis and prognostic evaluation of tumors, and also represent ideal targets for early precision therapeutic intervention. This review provides a theoretical basis for exploring the applications of exosomal circRNAs in malignant tumor diagnosis and treatment. We describe the biological functions of exosomal circRNAs in the occurrence and development of malignant tumors, their potential utility in diagnosis and treatment, and possible mechanisms.
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Affiliation(s)
- Dong Ye
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, 315040, Zhejiang, China.
| | - Mengdan Gong
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, 315040, Zhejiang, China
| | - Yongqin Deng
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, 315040, Zhejiang, China
| | - Shuai Fang
- Department of Thoracic Surgery, Affiliated Hospital of Ningbo University, Ningbo, 315020, Zhejiang, China
| | - Yujie Cao
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, 315040, Zhejiang, China
| | - Yizhen Xiang
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, 315040, Zhejiang, China
| | - Zhisen Shen
- Department of Otorhinolaryngology-Head and Neck Surgery, Lihuili Hospital of Ningbo University, Ningbo, 315040, Zhejiang, China.
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10
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Cao W, Shen Q, Lim MY. Editorial: "Non-Coding RNAs in Head and Neck Squamous Cell Carcinoma". Front Oncol 2021; 11:785001. [PMID: 35004307 PMCID: PMC8732768 DOI: 10.3389/fonc.2021.785001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/09/2021] [Indexed: 02/05/2023] Open
Affiliation(s)
- Wei Cao
- Department of Oral and Maxillofacial, Head and Neck Oncology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
- *Correspondence: Wei Cao,
| | - Qiang Shen
- Department of Genetics, Stanley S. Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Ming Yann Lim
- Department of Otorhinolaryngology, Tan Tock Seng Hospital, Singapore, Singapore
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