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Sandhanam K, Tamilanban T. Unraveling the noncoding RNA landscape in glioblastoma: from pathogenesis to precision therapeutics. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03265-7. [PMID: 39007929 DOI: 10.1007/s00210-024-03265-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 06/27/2024] [Indexed: 07/16/2024]
Abstract
Glioblastoma (GBM) is an aggressive type IV brain tumor that originates from astrocytes and has a poor prognosis. Despite intensive research, survival rates have not significantly improved. Noncoding RNAs (ncRNAs) are emerging as critical regulators of carcinogenesis, progression, and increased treatment resistance in GBM cells. They influence angiogenesis, migration, epithelial-to-mesenchymal transition, and invasion in GBM cells. ncRNAs, such as long ncRNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs), are commonly dysregulated in GBM. miRNAs, such as miR-21, miR-133a, and miR-27a-3p, are oncogenes that increase cell proliferation, metastasis, and migration by targeting TGFBR1 and BTG2. In contrast, lncRNAs, such as HOXD-AS2 and LINC00511, are oncogenes that increase the migration, invasion, and proliferation of cells. CircRNAs, such as circ0001730, circENTPD7, and circFOXO3, are oncogenes responsible for cell growth, angiogenesis, and viability. Developing novel therapeutic strategies targeting ncRNAs, cell migration, and angiogenesis is a promising approach for GBM. By targeting these dysregulated ncRNAs, we can potentially restore a healthy balance in gene expression and influence disease progression. ncRNAs abound within GBM, demonstrating significant roles in governing the growth and behavior of these tumors. They may also be useful as biomarkers or targets for therapy. The use of morpholino oligonucleotides (MOs) suppressing the oncogene expression of HOTAIR, BCYRN1, and cyrano, antisense oligonucleotides (ASOs) suppressing the expression of ncRNAs such as MALAT1 and miR-10b, locked nucleic acids (LNAs) suppressing miR-21, and peptide nucleic acids (PNAs) suppressing the expression of miR-155 inhibited the PI3K pathway, tumor growth, angiogenesis, proliferation, migration, and invasion. Targeting oncogenic ncRNAs with RNA-interfering strategies such as MOs, ASOs, LNAs, CRISPR-Cas9 gene editing, and PNA approaches may represent a promising therapeutic strategy for GBM. This review emphasizes the critical role of ncRNAs in GBM pathogenesis, as well as the potential for new therapeutic strategies targeting these pathways to improve the prognosis and quality of life for GBM patients.
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Affiliation(s)
- K Sandhanam
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamil Nadu, India
| | - T Tamilanban
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamil Nadu, India.
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Shehaj A, Khristov V, Mareboina M, Tufano E, Abdeen A, Rizk E, Connor J. Genetic Biomarkers in Astrocytoma: Diagnostic, Prognostic, and Therapeutic Potential. World Neurosurg 2024:S1878-8750(24)00955-0. [PMID: 38857866 DOI: 10.1016/j.wneu.2024.06.009] [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: 05/08/2024] [Revised: 06/02/2024] [Accepted: 06/03/2024] [Indexed: 06/12/2024]
Abstract
Astrocytoma is the most common adult brain tumor, with glioblastoma being the deadliest neuro-related malignancy. Despite advances in oncology, the prognosis for astrocytoma, especially glioblastoma, remains poor, and tracking disease progression is challenging due to a lack of robust biomarkers. Genetic biomarkers, including microRNAs, cell-free DNA, circulating tumor DNA, circular RNA, and long noncoding RNA, can serve as potential diagnostic and therapeutic targets. In this review, we examine the existing literature, analyzing the various less established liquid and tumor genetic biomarkers and their potential to act as diagnostic, prognostic, and therapeutic targets. We highlight the clinical challenges and limitations in implementing liquid biopsy strategies in clinical practice. The article discusses the potential of liquid biopsies as valuable tools for personalized astrocytoma management while emphasizing the need for standardized protocols and further advancements to establish their clinical utility and therapeutic application.
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Affiliation(s)
- Andrea Shehaj
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA.
| | - Vladimir Khristov
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA
| | - Manvita Mareboina
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA
| | - Emily Tufano
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA
| | - Ahmed Abdeen
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA
| | - Elias Rizk
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA
| | - James Connor
- Department of Neurosurgery, Penn State Hershey College of Medicine, Hershey, Pennsylvania, USA
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Chen D, Zeng S, Qiu H, Yang M, Lin X, Lv X, Li P, Weng S, Kou S, Luo K, Liu Z, Yi Y, Liu H. Circ-FOXO3 inhibits triple-negative breast cancer growth and metastasis via regulating WHSC1-H3K36me2-Zeb2 axis. Cell Signal 2024; 117:111079. [PMID: 38341124 DOI: 10.1016/j.cellsig.2024.111079] [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: 11/28/2023] [Revised: 01/31/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Circular RNAs (circRNAs), a subclass of non-coding RNAs characterized by covalently closed continuous loops, play a key role in tumorigenesis and aggressiveness. However, the potential molecular mechanism of circRNAs in triple-negative breast cancer (TNBC) remains largely unknown. Exploring their roles and mechanisms in TNBC progression may help identify new diagnostic markers and therapeutic targets. In this study, we found that circ-FOXO3 was dramatically downregulated in TNBC tissues and blood samples from patients with TNBC. Notably, low circ-FOXO3 expression in TNBC tissues and bloods was associated with lymph node metastasis and unfavorable outcomes in patients with TNBC. Overexpression of circ-FOXO3 significantly inhibited the growth, invasion, and metastasis of TNBC cells both in vitro and in vivo. Moreover, we demonstrated that circ-FOXO3 was predominantly expressed in the cytoplasm and directly interacted with Wolf-Hirschhorn syndrome candidate 1 (WHSC1), thereby inhibiting WHSC1 nuclear localization and activity, resulting in the inhibition of H3K36me2 modifications at the Zeb2 promoter, ultimately inhibiting Zeb2 expression and halting TNBC growth and metastasis. Taken together, these results reveal the tumor-suppressive functions of circ-FOXO3 in inhibiting WHSC1-mediated H3K36me2 modification of Zeb2, suggesting that circ-FOXO3 could serve as a potential novel predictive prognostic biomarker and therapeutic target for TNBC.
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Affiliation(s)
- Danyang Chen
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Shanshan Zeng
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Huisi Qiu
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, Guangdong, China
| | - Mingqiang Yang
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Xin Lin
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Xinwu Lv
- School of Basic Medical Sciences, Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Pan Li
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Shaojuan Weng
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Siyue Kou
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Kai Luo
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China
| | - Zongcai Liu
- Laboratory of Endocrinology and Metabolism, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China.
| | - Yanmei Yi
- School of Basic Medical Sciences, Guangdong Medical University, Zhanjiang, Guangdong, China.
| | - Hao Liu
- Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou Key Laboratory of "Translational Medicine on Malignant Tumor Treatment", Guangzhou, Guangdong, China.
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Zhang B, Zhang H, Wang Z, Cao H, Zhang N, Dai Z, Liang X, Peng Y, Wen J, Zhang X, Zhang L, Luo P, Zhang J, Liu Z, Cheng Q, Peng R. The regulatory role and clinical application prospects of circRNA in the occurrence and development of CNS tumors. CNS Neurosci Ther 2024; 30:e14500. [PMID: 37953502 PMCID: PMC11017455 DOI: 10.1111/cns.14500] [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: 06/29/2023] [Revised: 09/20/2023] [Accepted: 10/03/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND Central nervous system (CNS) tumors originate from the spinal cord or brain. The study showed that even with aggressive treatment, malignant CNS tumors have high mortality rates. However, CNS tumor risk factors and molecular mechanisms have not been verified. Due to the reasons mentioned above, diagnosis and treatment of CNS tumors in clinical practice are currently fraught with difficulties. Circular RNAs (circRNAs), single-stranded ncRNAs with covalently closed continuous structures, are essential to CNS tumor development. Growing evidence has proved the numeral critical biological functions of circRNAs for disease progression: sponging to miRNAs, regulating gene transcription and splicing, interacting with proteins, encoding proteins/peptides, and expressing in exosomes. AIMS This review aims to summarize current progress regarding the molecular mechanism of circRNA in CNS tumors and to explore the possibilities of clinical application based on circRNA in CNS tumors. METHODS We have summarized studies of circRNA in CNS tumors in Pubmed. RESULTS This review summarized their connection with CNS tumors and their functions, biogenesis, and biological properties. Furthermore, we introduced current advances in clinical RNA-related technologies. Then we discussed the diagnostic and therapeutic potential (especially for immunotherapy, chemotherapy, and radiotherapy) of circRNA in CNS tumors in the context of the recent advanced research and application of RNA in clinics. CONCLUSIONS CircRNA are increasingly proven to participate in decveloping CNS tumors. An in-depth study of the causal mechanisms of circRNAs in CNS tomor progression will ultimately advance their implementation in the clinic and developing new strategies for preventing and treating CNS tumors.
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Affiliation(s)
- Bo Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Hao Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- Department of Neurosurgery, The Second Affiliated HospitalChongqing Medical UniversityChongqingChina
| | - Zeyu Wang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- MRC Centre for Regenerative Medicine, Institute for Regeneration and RepairUniversity of EdinburghEdinburghUK
| | - Hui Cao
- Department of Psychiatry, The School of Clinical MedicineHunan University of Chinese MedicineChangshaChina
| | - Nan Zhang
- College of Life Science and TechnologyHuazhong University of Science and TechnologyWuhanChina
| | - Ziyu Dai
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Xisong Liang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Yun Peng
- Teaching and Research Section of Clinical NursingXiangya Hospital of Central South UniversityChangshaChina
- Department of Geriatrics, Xiangya HospitalCentral South UniversityChangshaChina
| | - Jie Wen
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Xun Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Liyang Zhang
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Peng Luo
- Department of Oncology, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Jian Zhang
- Department of Oncology, Zhujiang HospitalSouthern Medical UniversityGuangzhouChina
| | - Zaoqu Liu
- Department of Interventional RadiologyThe First Affiliated Hospital of Zhengzhou UniversityZhengzhouChina
| | - Quan Cheng
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
| | - Renjun Peng
- Department of Neurosurgery, Xiangya HospitalCentral South UniversityChangshaChina
- National Clinical Research Center for Geriatric Disorders, Xiangya HospitalCentral South UniversityChangshaChina
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Zhang L, Liu H, Xiong W, He H, Fu T, Long X, Li X, Liang J, Ding H, Xu Y, Liu Y, Dai X. CircFOXO3 mediates hypoxia-induced autophagy of endometrial stromal cells in endometriosis. FASEB J 2024; 38:e23515. [PMID: 38470367 DOI: 10.1096/fj.202301654rr] [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: 08/15/2023] [Revised: 02/02/2024] [Accepted: 02/12/2024] [Indexed: 03/13/2024]
Abstract
Endometriosis is a benign gynecological disease that shares some common features of malignancy. Autophagy plays vital roles in endometriosis and influences endometrial cell metastasis, and hypoxia was identified as the initiator of this pathological process through hypoxia inducible factor 1 alpha (HIF-1α). A newly discovered circular RNA FOXO3 (circFOXO3) is critical in cell autophagy, migration, and invasion of various diseases and is reported to be related to hypoxia, although its role in endometriosis remains to be elucidated up to now. In this study, a lower circFOXO3 expression in ectopic endometrium was investigated. Furthermore, we verified that circFOXO3 could regulate autophagy by downregulating the level of p53 protein to mediate the migration and invasion of human endometrial stromal cells (T HESCs). Additionally, the effects of HIF-1α on circFOXO3 and autophagy were examined in T HESCs. Notably, overexpression of HIF-1α could induce autophagy and inhibit circFOXO3 expression, whereas overexpressing of circFOXO3 under hypoxia significantly inhibited hypoxia-induced autophagy. Mechanistically, the direct combination between HIF-1α and HIF-1α-binding site on adenosine deaminase 1 acting on RNA (ADAR1) promoter increased the level of ADAR1 protein, which bind directly with circFOXO3 pre-mRNA to block the cyclization of circFOXO3. All these results support that hypoxia-mediated ADAR1 elevation inhibited the expression of circFOXO3, and then autophagy was induced upon loss of circFOXO3 via inhibition of p53 degradation, participating in the development of endometriosis.
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Affiliation(s)
- Ling Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Shandong Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Hengwei Liu
- Department of Obstetrics and Gynecology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei, China
| | - Wenqian Xiong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Haitang He
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Tian Fu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xuefeng Long
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoou Li
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiaxin Liang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hui Ding
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ying Xu
- Department of Reproductive Medicine, Wuhan No.1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yi Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xin Dai
- Shandong Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
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Liu Y, Zhou M, Zheng N, Xu H, Chen X, Duan Z, Lin T, Zeng R, Chen Q, Li M. Hsa_circ_0105040 promotes Cutbacterium acnes biofilm induced inflammation via sponge miR-146a in human keratinocyte. Int Immunopharmacol 2024; 127:111424. [PMID: 38141413 DOI: 10.1016/j.intimp.2023.111424] [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: 09/05/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Acne is a chronic inflammatory skin disease, and the pathogenesis of acne induced by Cutibacterium acnes (C.acnes) is not well understood. Recently, circular RNAs (circRNAs) have attracted much attention because of its involvement in various diseases. However, the mechanisms by which circRNAs regulated acne have rarely been reported. We identified several differentially expressed circRNAs by sequencing patient-derived acne tissues. Among them, hsa_circ_0105040 was determined to be low expressed in acne tissues and localized in the cytoplasm of human primary keratinocytes. We established a C.acnes biofilms model of acne in vitro and showed that hsa_circ_0105040 promoted inflammation via MAPK and NF-κB pathway. Mechanistically, hsa_circ_0105040 could directly bind to miR-146a and inhibit the expression of miR-146a. Moreover, hsa_circ_0105040 promoted the expression of IRAK1 and TRAF6 by sponging miR-146a, thereby elevating the level of inflammation in acne. Collectively, our data suggested that hsa_circ_0105040- miR-146a -IRAK1/TRAF6 axis was involved in regulating the inflammatory response in acne, which provided a potential therapeutic target for acne and a novel insight into the pathogenesis of inflammatory acne.
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Affiliation(s)
- Yuzhen Liu
- Department of Dermatology, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing 211100, China
| | - Meng Zhou
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Nana Zheng
- Department of Dermatology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210003, China
| | - Haoxiang Xu
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Xu Chen
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Zhimin Duan
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Tong Lin
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China
| | - Rong Zeng
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China; Department of Dermatology, Yunnan Provincial Hospital of Traditional Chinese Medicine, No.120 Guanghua Rd, Kunming, Yunnan 650021, China.
| | - Qing Chen
- Department of Transfusion Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
| | - Min Li
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.
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Zhou M, Liu Y, Xu H, Chen X, Zheng N, Duan Z, Ge Y, Li D, Lin T, Zeng R, Chen Q, Li M. YTHDC1-Modified m6A Methylation of Hsa_circ_0102678 Promotes Keratinocyte Inflammation Induced by Cutibacterium acnes Biofilm through Regulating miR-146a/TRAF6 and IRAK1 Axis. J Innate Immun 2023; 15:822-835. [PMID: 37903473 PMCID: PMC10684258 DOI: 10.1159/000534704] [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: 04/28/2023] [Accepted: 10/17/2023] [Indexed: 11/01/2023] Open
Abstract
INTRODUCTION CircRNAs are closely related to many human diseases; however, their role in acne remains unclear. This study aimed to determine the role of hsa_circ_0102678 in regulating inflammation of acne. METHODS First, microarray analysis was performed to study the expression of circRNAs in acne. Subsequently, RNase R digestion assay and fluorescence in situ hybridization assay were utilized to confirm the characteristics of hsa_circ_0102678. Finally, qRT-PCR, Western blotting analysis, immunoprecipitation, luciferase reporter assay, circRNA probe pull-down assay, biotin-labeled miRNA pull-down assay, RNA immunoprecipitation assay, and m6A dot blot assay were utilized to reveal the functional roles of hsa_circ_0102678 on inflammation induced by C. acnes biofilm in human primary keratinocytes. RESULTS Our investigations showed that the expression of hsa_circ_0102678 was significantly decreased in acne tissues, and hsa_circ_0102678 was a type of circRNAs, which was mainly localized in the cytoplasm of primary human keratinocytes. Moreover, hsa_circ_0102678 remarkably affected the expression of IL-8, IL-6, and TNF-α, which induced by C. acnes biofilm. Importantly, mechanistic studies indicated that the YTHDC1 could bind directly to hsa_circ_0102678 and promote the export of N6-methyladenosine-modified hsa_circ_0102678 to the cytoplasm. Besides, hsa_circ_0102678 could bind to miR-146a and sponge miR-146a to promote the expression of IRAK1 and TRAF6. CONCLUSION Our findings revealed a previously unknown process by which hsa_circ_0102678 promoted keratinocyte inflammation induced by C. acnes biofilm via regulating miR-146a/TRAF6 and IRAK1 axis.
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Affiliation(s)
- Meng Zhou
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Yuzhen Liu
- Department of Dermatology, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Haoxiang Xu
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Xu Chen
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Nana Zheng
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Zhimin Duan
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Yiping Ge
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Dongqing Li
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Tong Lin
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Rong Zeng
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Department of Dermatology, Yunnan Provincial Traditional Chinese Medicine Hospital, Kunming, China
| | - Qing Chen
- Department of Transfusion Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Min Li
- Department of Laser Surgery, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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8
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Li Y, Gao Z, Wang Y, Pang B, Zhang B, Hu R, Wang Y, Liu C, Zhang X, Yang J, Mei M, Wang Y, Zhou X, Li M, Ren Y. Lysine methylation promotes NFAT5 activation and determines temozolomide efficacy in glioblastoma. Nat Commun 2023; 14:4062. [PMID: 37429858 DOI: 10.1038/s41467-023-39845-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 06/30/2023] [Indexed: 07/12/2023] Open
Abstract
Temozolomide (TMZ) therapy offers minimal clinical benefits in patients with glioblastoma multiforme (GBM) with high EGFR activity, underscoring the need for effective combination therapy. Here, we show that tonicity-responsive enhancer binding protein (NFAT5) lysine methylation, is a determinant of TMZ response. Mechanistically, EGFR activation induces phosphorylated EZH2 (Ser21) binding and triggers NFAT5 methylation at K668. Methylation prevents NFAT5 cytoplasm interaction with E3 ligase TRAF6, thus blocks NFAT5 lysosomal degradation and cytosol localization restriction, which was mediated by TRAF6 induced K63-linked ubiquitination, resulting in NFAT5 protein stabilization, nuclear accumulation and activation. Methylated NFAT5 leads to the upregulation of MGMT, a transcriptional target of NFAT5, which is responsible for unfavorable TMZ response. Inhibition of NFAT5 K668 methylation improved TMZ efficacy in orthotopic xenografts and patient-derived xenografts (PDX) models. Notably, NFAT5 K668 methylation levels are elevated in TMZ-refractory specimens and confer poor prognosis. Our findings suggest targeting NFAT5 methylation is a promising therapeutic strategy to improve TMZ response in tumors with EGFR activation.
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Affiliation(s)
- Yatian Li
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Zhenyue Gao
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yuhong Wang
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Bo Pang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Binbin Zhang
- Department of Neuro-oncology, Tianjin Huanhu Hospital, Tianjin, China
| | - Ruxin Hu
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Yuqing Wang
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Chao Liu
- Department of Maxillofacial and Otorhinolaryngology Oncology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin, China
| | - Xuebin Zhang
- Department of Pathology, Tianjin Huanhu Hospital, Tianjin, China
| | - Jingxuan Yang
- Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Mei Mei
- Department of Cell Biology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
| | - Yongzhi Wang
- Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
| | - Xuan Zhou
- Department of Maxillofacial and Otorhinolaryngology Oncology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China.
- Key Laboratory of Cancer Prevention and Therapy, Tianjin Cancer Institute, National Clinical Research Center of Cancer, Tianjin, China.
| | - Min Li
- Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
| | - Yu Ren
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
- Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Department of Surgery, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
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9
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Zhang C, Zhang C, Liu X, Sun W, Liu H. Circular RNA PGPEP1 induces colorectal cancer malignancy and immune escape. Cell Cycle 2023; 22:1743-1758. [PMID: 37424115 PMCID: PMC10446806 DOI: 10.1080/15384101.2023.2225923] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 12/10/2022] [Accepted: 05/14/2023] [Indexed: 07/11/2023] Open
Abstract
OBJECTIVE Colorectal cancer (CRC) is a prevalent gastrointestinal tumor globally. Circular RNAs (circRNAs) have been identified as regulatory players in the pathogenesis of CRC. However, it is unclear whether hsa_circ_0050102 (circPGPEP1) affects the malignant progression and immune escape in CRC. METHODS Bioinformatics analysis and circRNA in vivo precipitation experiments were performed to analyze and identify circRNAs that mediate immune escape in CRC. Using luciferase reporter assay, RIP, RNA pull-down assay, and FISH, the interaction between circPGPEP1, miR-515-5p, and nuclear factor of activated T-cell 5 (NFAT5) was identified. The functional role of circPGPEP1/miR-515-5p/NFAT5 axis in CRC anti-tumor immunity was investigated by co-culture assay, CFSE assay, and flow cytometry of CRC cells and T cells. RESULTS circPGPEP1 was a stable circRNA that was highly expressed in CRC. Functionally, circPGPEP1 silencing not only effectively inhibited CRC cell proliferation, migration, EMT, and immune escape and promoted apoptosis in vitro, but also inhibited CRC tumor growth and immune escape in vivo. In terms of the regulatory mechanism, circIGF2BP3 competitively upregulated NFAT5 expression by sponging miR-515-5p. Furthermore, functional rescue experiments showed that circPGPEP1 acted in CRC by regulating the miR-515-5p/NFAT5 axis. CONCLUSION Collectively, circPGPEP1 exerts an oncogene role in CRC by regulating the miR-515-5p/NFAT5 axis.
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Affiliation(s)
- Chi Zhang
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - ChengZhao Zhang
- Department of Colorectal Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - XinLu Liu
- Department of Colorectal Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - WenShuo Sun
- Department of Colorectal Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - HuanRan Liu
- Department of Colorectal Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
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10
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Wang S, Wu J, Zhao W, Li M, Li S. CEBPB upregulates P4HA2 to promote the malignant biological behavior in IDH1 wildtype glioma. FASEB J 2023; 37:e22848. [PMID: 36906285 DOI: 10.1096/fj.202201244rrrr] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 03/13/2023]
Abstract
Temozolomide (TMZ), the primary drug for glioma treatment, has limited treatment efficacy. Additionally, considerable evidence shows that isocitrate dehydrogenase 1 mutation-type (IDH1 mut) gliomas have a better response to TMZ than isocitrate dehydrogenase 1 wildtype (IDH1 wt) gliomas. Here, we aimed to identify potential mechanisms underlying this phenotype. Herein, the Cancer Genome Atlas bioinformatic data and 30 clinical samples from patients were analyzed to reveal the expression level of cytosine-cytosine-adenosine-adenosine-thymidine (CCAAT) Enhancer Binding Protein Beta (CEBPB) and prolyl 4-hydroxylase subunit alpha 2 (P4HA2) in gliomas. Next, cellular and animal experiments, including cell proliferation, colony formation, transwell, CCK-8, and xenograft assays, were performed to explore the tumor-promoting effects of P4HA2 and CEBPB. Then, chromatin immunoprecipitation (ChIP) assays were used to confirm the regulatory relationships between them. Finally, a co-immunoprecipitation (Co-IP) assay was performed to confirm the effect of IDH1-132H to CEBPB proteins. We found that CEBPB and P4HA2 expression was significantly upregulated in IDH1 wt gliomas and associated with poor prognosis. CEBPB knockdown inhibited the proliferation, migration, invasion, and temozolomide resistance of glioma cells and hindered the growth of glioma xenograft tumors. CEBPE, as a transcription factor, exerted its function by transcriptionally upregulating P4HA2 expression in glioma cells. Importantly, CEBPB is prone to ubiquitin-proteasomal degradation in IDH1 R132H glioma cells. We also demonstrated that both genes are related to collagen synthesis, as confirmed by in vivo experiments. Thus, CEBPE promotes proliferation and TMZ resistance by inducing P4HA2 expression in glioma cells and offers a potential therapeutic target for glioma treatment.
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Affiliation(s)
- Shuai Wang
- Department of Functional Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Jingheng Wu
- Department of Functional Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Wujun Zhao
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China.,Department of Neurosurgery of the First Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Miaomiao Li
- Department of Functional Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Shaoyi Li
- Department of Functional Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
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11
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Fan L, Li W, Jiang H. Circ_0000395 Promoted CRC Progression via Elevating MYH9 Expression by Sequestering miR-432-5p. Biochem Genet 2023; 61:116-137. [PMID: 35759156 DOI: 10.1007/s10528-022-10245-0] [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: 07/12/2021] [Accepted: 06/07/2022] [Indexed: 01/24/2023]
Abstract
Colorectal cancer (CRC) has been listed as the fourth deadly cancer. Circular RNA hsa_circRNA_001046, also termed as hsa_circ_0000395 (circ_0000395), has been shown to be upregulated in CRC. Nevertheless, the function of circ_0000395 in CRC progression is unclear. 42 CRC patients were enrolled in the study. Detection of circ_0000395 expression in tissues and cells was executed using real-time quantitative polymerase chain reaction (RT-qPCR). Evaluation of circ_0000395 function was performed using loss-of-function experiments in vitro and in vivo. The regulatory mechanism of circ_0000395 was predicted by bioinformatics analysis and validated by dual-luciferase reporter and RIP assays. Exosomes were isolated by ultracentrifugation and validated by western blotting, TEM, and NTA. Circ_0000395 was strongly expressed in CRC samples and cell lines. Also, circ_0000395 repressed CRC growth in mouse models in vivo and induced CRC cell apoptosis, restrained CRC cell proliferation, migration, invasion, and EMT in vitro. Mechanistically, circ_0000395 sequestered miR-432-5p to regulate MYH9 expression. Furthermore, miR-432-5p knockdown reversed circ_0000395 silencing-mediated effects on CRC cell malignant phenotypes. MYH9 overexpression counteracted the inhibiting effects of miR-432-5p upregulation on CRC cell malignant phenotypes. Additionally, CRC cells derived from exosomal circ_0000395 promoted cancer cell malignant phenotypes. Our findings demonstrated that circ_0000395 sequestered miR-432-5p to elevate MYH9 expression, resulting in facilitating CRC progression, manifesting a potential therapeutic target for CRC.
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Affiliation(s)
- Leilei Fan
- Department of Gastrointestinal Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No.158 Wuyang Avenue, Enshi City, Hubei Province, China
| | - Weiwei Li
- Department of Gastrointestinal Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No.158 Wuyang Avenue, Enshi City, Hubei Province, China
| | - Hongsheng Jiang
- Department of Gastrointestinal Surgery, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, No.158 Wuyang Avenue, Enshi City, Hubei Province, China.
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12
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Wu H, Cheng L, Sun W, Zhou Y. General Characteristics and Promotion Properties of Circular PLOD2 in Patients with Glioma. World Neurosurg 2023; 169:e147-e156. [PMID: 36415014 DOI: 10.1016/j.wneu.2022.10.079] [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: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Circular RNAs are closed endogenous RNAs that are involved in the progression of diverse tumors. Even with the most advanced combined treatments, patients with glioblastoma multiforme have a median survival time of <15 months. This study aimed to investigate the roles of circular PLOD2 (circPLOD2) in glioma tumorigenesis and tumor development and to clarify its tumor-promoting effects by bioinformatics analysis and molecular experiments. METHODS To determine the characteristics of circPLOD2 expression, quantitative real-time polymerase chain reaction was conducted. Stable knockdown of circPLOD2 was implemented for functional assays. Cell Counting Kit-8 and colony formation assays were used to measure cell proliferation. Transwell assays and tube formation assays were used to evaluate cell invasion and angiogenesis abilities, respectively. An intracranial xenograft model was established to determine the function of circPLOD2 in vivo. Further biochemical and Western blot analyses were conducted to evaluate proteins associated with circPLOD2. RESULTS circPLOD2 was upregulated in glioma tissues and cells. High expression of circPLOD2 was significantly associated with tumor size, World Health Organization grade, and molecular characteristics of glioma. circPLOD2 deregulation affected glioblastoma multiforme cell proliferation, invasion, and angiogenesis. Knockdown of circPLOD2 inhibited tumorigenesis in vivo. Further biochemical analysis showed that circPLOD2 was involved in oncogenic pathways and correlated with the expression of proteins related to proliferation, invasion, and angiogenesis. CONCLUSIONS Our data indicate that circPLOD2 promotes glioma tumorigenesis and tumor development in vitro and in vivo and that suppressing circPLOD2 could be a novel therapeutic strategy for glioma.
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Affiliation(s)
- Hui Wu
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Jiangsu, China; Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lilin Cheng
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wenhua Sun
- Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Youxin Zhou
- Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Jiangsu, China.
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13
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Rahmati A, Mafi A, Soleymani F, Babaei Aghdam Z, Masihipour N, Ghezelbash B, Asemi R, Aschner M, Vakili O, Homayoonfal M, Asemi Z, Sharifi M, Azadi A, Mirzaei H, Aghadavod E. Circular RNAs: pivotal role in the leukemogenesis and novel indicators for the diagnosis and prognosis of acute myeloid leukemia. Front Oncol 2023; 13:1149187. [PMID: 37124518 PMCID: PMC10140500 DOI: 10.3389/fonc.2023.1149187] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 03/29/2023] [Indexed: 05/02/2023] Open
Abstract
Acute myeloid leukemia (AML) is an aggressive hematological malignancy and affected patients have poor overall survival (OS) rates. Circular RNAs (circRNAs) are a novel class of non-coding RNAs (ncRNAs) with a unique loop structure. In recent years, with the development of high-throughput RNA sequencing, many circRNAs have been identified exhibiting either up-regulation or down-regulation in AML patients compared with healthy controls. Recent studies have reported that circRNAs regulate leukemia cell proliferation, stemness, and apoptosis, both positively and negatively. Additionally, circRNAs could be promising biomarkers and therapeutic targets in AML. In this study, we present a comprehensive review of the regulatory roles and potentials of a number of dysregulated circRNAs in AML.
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Affiliation(s)
- Atefe Rahmati
- Department of Hematology and Blood Banking, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Basic Sciences, Faculty of Medicine, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Firooze Soleymani
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Babaei Aghdam
- Imaging Sciences Research Group, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Niloufar Masihipour
- Department of Medicine, Lorestan University of Medical Science, Lorestan, Iran
| | - Behrooz Ghezelbash
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Asemi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mina Homayoonfal
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Mehran Sharifi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abbas Azadi
- Department of Internal Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
- *Correspondence: Abbas Azadi, ; Esmat Aghadavod, ; Hamed Mirzaei, ;
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
- Department of Clinical Biochemistry, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- *Correspondence: Abbas Azadi, ; Esmat Aghadavod, ; Hamed Mirzaei, ;
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14
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Hypoxia-induced circADAMTS6 in a TDP43-dependent manner accelerates glioblastoma progression via ANXA2/ NF-κB pathway. Oncogene 2023; 42:138-153. [PMID: 36396726 DOI: 10.1038/s41388-022-02542-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022]
Abstract
Circular RNAs (circRNAs) play important roles in the malignant progression of tumours. Herein, we identified an unreported circRNA (hsa-circ-0072688, also named circADAMTS6) that is specifically upregulated in the hypoxic microenvironment of glioblastoma and closely correlated with poor prognosis of gliblastoma patients. We found that circADAMTS6 promotes the malignant progression of glioblastoma by promoting cell proliferation and inhibiting apoptosis. Mechanistically, the hypoxic tumour microenvironment upregulates circADAMTS6 expression through transcription factor activator protein 1 (AP-1) and RNA-binding protein TAR DNA-binding protein 43 (TDP43). Moreover, circADAMTS6 accelerates glioblastoma progression by recruiting and stabilising annexin A2 (ANXA2) in a proteasomes-dependent manner. Furthermore, we found T-5224 (AP-1 inhibitor) treatment induces downregulation of circADAMTS6 and then inhibits tumour growth. In conclusion, our findings highlight the important role of the circADAMTS6/ANXA2 axis based on hypoxic microenvironment in glioblastoma progression, as well as its regulation in NF-κB pathway. Targeting circADAMTS6 is thus expected to become a novel therapeutic strategy for glioblastoma.
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15
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Katsushima K, Joshi K, Perera RJ. Diagnostic and therapeutic potential of circular RNA in brain tumors. Neurooncol Adv 2023; 5:vdad063. [PMID: 37334165 PMCID: PMC10276536 DOI: 10.1093/noajnl/vdad063] [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] [Indexed: 06/20/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of RNA with a stable cyclic structure. They are expressed in various tissues and cells with conserved, specific characteristics. CircRNAs have been found to play critical roles in a wide range of cellular processes by regulating gene expression at the epigenetic, transcriptional, and posttranscriptional levels. There is an accumulation of evidence on newly discovered circRNAs, their molecular interactions, and their roles in the development and progression of human brain tumors, including cell proliferation, cell apoptosis, invasion, and chemoresistance. Here we summarize the current state of knowledge of the circRNAs that have been implicated in brain tumor pathogenesis, particularly in gliomas and medulloblastomas. In providing a comprehensive overview of circRNA studies, we highlight how different circRNAs have oncogenic or tumor-suppressive roles in brain tumors, making them attractive therapeutic targets and biomarkers for personalized therapy and precision diagnostics. This review article discusses circRNAs' functional roles and the prospect of using them as diagnostic biomarkers and therapeutic targets in patients with brain tumors.
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Affiliation(s)
- Keisuke Katsushima
- Department of Neurosurgery and Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Cancer and Blood Disorders Institute, Johns Hopkins All Children’s Hospital, Florida, USA
| | - Kandarp Joshi
- Department of Neurosurgery and Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Cancer and Blood Disorders Institute, Johns Hopkins All Children’s Hospital, Florida, USA
| | - Ranjan J Perera
- Corresponding Author: Ranjan J. Perera, PhD, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, 1650 Orleans St., Baltimore, MD 21231, USA ()
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16
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Yang L, Xiao J, Ma C. Circular RNA FOXO3 regulates endometrial carcinoma progression through the microRNA-29a-3p/HDAC4 axis. Am J Transl Res 2022; 14:8572-8587. [PMID: 36628205 PMCID: PMC9827307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 04/14/2022] [Indexed: 01/12/2023]
Abstract
Previous studies determined that circular RNA FOXO3 (circ_FOXO3) plays a critical role in tumorigenesis. The definite molecular mechanism of cir_FOXO3 in endometrial carcinoma (EC), nevertheless, had not been fully explored. Circ_FOXO3 expression was determined using quantitative real-time polymerase chain reaction in human EC tissues and cell lines, whereas small interfering RNAs were used to specifically silence circ_FOXO3 expression in cultured EC cells. The cell counting kit-8 assay was employed to determine the effect of ectopic circ_FOXO3 expression on cell viability. Cell proliferation and apoptosis were evaluated by flow cytometry. Further, migration and invasion of EC cells were characterized using the Transwell assay. The interaction between microRNA (miR)-29a-3p and circ_FOXO3/histone deacetylase 4 (HDAC4) was validated using dual luciferase reporter assay. Additionally, qRT-PCR and WB were employed to determine HDAC4 levels. We found that circ_FOXO3 was highly expressed in EC cells and tissues. Moreover, suppressing circ_FOXO3 expression abrogated EC by regulating cell proliferation, apoptosis, migration, and invasion. Furthermore, circ_FOXO3 could act as a sponge for miR-29a-3p, and inhibition of miR-29a-3p expression reversed the effects of circ_FOXO3 suppression on EC progression. Overexpression of miR-29a-3p inhibited EC cell growth, migration, and invasion through the regulation of HDAC4, as it is a target of miR-29a-3p. In conclusion, circ_FOXO3 promotes EC progression by sponging miR-29a-3p and upregulating HDAC4, making it a promising therapeutic target in EC.
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17
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Dai L, Liang W, Shi Z, Li X, Zhou S, Hu W, Yang Z, Wang X. Systematic characterization and biological functions of non-coding RNAs in glioblastoma. Cell Prolif 2022; 56:e13375. [PMID: 36457281 PMCID: PMC9977673 DOI: 10.1111/cpr.13375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/02/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most malignant and aggressive type of glioma. Non-coding RNAs (ncRNAs) are RNAs that do not encode proteins but widely exist in eukaryotic cells. The common characteristics of these RNAs are that they can all be transcribed from the genome without being translated into proteins, thus performing biological functions, particularly microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs. Studies have found that ncRNAs are associated with the occurrence and development of GBM, and there is a complex regulatory network among ncRNAs, which can regulate cell proliferation, migration, apoptosis and differentiation, thus provide a basis for the development of highly specific diagnostic tools and therapeutic strategies in the future. The present review aimed to comprehensively describe the biogenesis, general features and functions of regulatory ncRNAs in GBM, and to interpret the potential biological functions of these ncRNAs in GBM as well as their impact on clinical diagnosis, treatment and prognosis and discusses the potential mechanisms of these RNA subtypes leading to cancer in order to contribute to the better design of personalized GBM therapies in the future.
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Affiliation(s)
- Lirui Dai
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Wulong Liang
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Zimin Shi
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Xiang Li
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Shaolong Zhou
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Weihua Hu
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Zhuo Yang
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
| | - Xinjun Wang
- Department of NeurosurgeryThe Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina,Institute of Neuroscience, Zhengzhou UniversityZhengzhouChina,Henan International Joint Laboratory of Glioma Metabolism and Microenvironment ResearchZhengzhouHenanChina
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18
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Chen L, Zhu L, Fang J, Zhang N, Li D, Sheng X, Zhou J, Wang S, Wang J. Circular RNA circFoxo3 Promotes Granulosa Cell Apoptosis Under Oxidative Stress Through Regulation of FOXO3 Protein. DNA Cell Biol 2022; 41:1026-1037. [DOI: 10.1089/dna.2022.0449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Linjun Chen
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Lihua Zhu
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Junshun Fang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Ningyuan Zhang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Dong Li
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Xiaoqiang Sheng
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Jidong Zhou
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Shanshan Wang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
| | - Jie Wang
- Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- Center for Molecular Reproductive Medicine, Nanjing University, Nanjing, China
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19
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Zhao C, Li X, Sun G, Liu P, Kong K, Chen X, Yang F, Wang X. CircFOXO3 protects against osteoarthritis by targeting its parental gene FOXO3 and activating PI3K/AKT-mediated autophagy. Cell Death Dis 2022; 13:932. [PMID: 36344492 PMCID: PMC9640610 DOI: 10.1038/s41419-022-05390-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 11/09/2022]
Abstract
Osteoarthritis (OA) is a degenerative joint disorder causing pain and functional disability. Emerging evidence reveals that circular RNAs (circRNAs) play essential roles in OA progression and development. This study aimed to investigate the role of a novel circRNA factor, circFOXO3, in the progression of OA and elucidate its underlying molecular mechanism. The function of circFOXO3 in OA and interaction between circFOXO3 and its downstream mRNA target, forkhead box O3 (FOXO3), were evaluated by western blot (WB), immunofluorescence (IF), RNA immunoprecipitation, reverse transcription-quantitative PCR (RT-qPCR), and fluorescence in situ hybridization (FISH). Upregulation of circFOXO3 and autophagic flux were detected both in vivo and in vitro by WB, transmission electron microscopy (TEM), IF, and immunohistochemistry (IHC). A mouse model of OA was also used to confirm the role of circFOXO3 in OA pathogenesis in vivo. Decreased expression of circFOXO3 in OA cartilage tissues was directly associated with excessive apoptosis and imbalance between anabolic and catabolic factors of the extracellular matrix (ECM). Mechanistically, circFOXO3 functioned in cartilage by targeting its parental gene FOXO3 and activating autophagy. Intra-articular injection of lentivirus-circFOXO3 alleviated OA in the mouse model. In conclusion, our results reveal the key role played by circFOXO3 in OA progression; circFOXO3 overexpression may alleviate apoptosis of chondrocytes and promote anabolism of the ECM via activation of FOXO3 and autophagy, providing a potentially effective novel therapeutic strategy for OA.
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Affiliation(s)
- Chen Zhao
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Xiaodong Li
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Guantong Sun
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Pengcheng Liu
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Keyu Kong
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Xuzhuo Chen
- grid.16821.3c0000 0004 0368 8293Department of Oral Surgery, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Fei Yang
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
| | - Xiaoqing Wang
- grid.16821.3c0000 0004 0368 8293Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011 China
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20
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Kandil NS, Kandil LS, Mohamed R, Selima M, El Nemr M, Barakat AR, Alwany YN. The Role of miRNA-182 and FOXO3 Expression in Breast Cancer. Asian Pac J Cancer Prev 2022; 23:3361-3370. [PMID: 36308360 PMCID: PMC9924337 DOI: 10.31557/apjcp.2022.23.10.3361] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE evaluating the role of FOXO3 mRNA and mi RNA 182-5P expression levels in BC patients. METHOD 25 Samples of breast cancer and paired samples of non-cancerous tissues from the same resected breast were obtained from 25 female patients suffering from breast cancer and examined and analyzed by real time PCR to detect the expression levels of FOXO3 mRNA and mi RNA 182-5P. Patients' data were collected from patients medical records. RESULTS Foxo3 m RNA expression was down regulated in BC tissues (1.37± 1.96) as compared to control group (23.62 ± 54.39) and decreased FOXO3 expression was associated with larger tumor size (p= 0.046), late histopathological grading (p= 0.002), late TNM staging (<0.001) and increased miR-182 expression (p= 0.025). We found that expression level of miR-182 was significantly higher among breast cancer group (1.10±1.15) as compared to the control group (0.58±0.96 ) with p value = 0.017. We noted a significant increased expression associated with larger tumor size (p= 0.002), late histopathological grading (p= 0.008), late TNM staging (p= 0.002) and decreased FOXO3 expression (p= 0.025). A significant negative correlation between miR-182 and FOXO3 mRNA fold expression with r = - 0.447, and a p value of 0.025, this could be attributed to miRNA targeting FOXO gene. COCLUSION Down regulation of FOXO3 and up regulation of miR-182 expression was associated with advanced breast cancer. The negative correlation between miR-182 and FOXO3 mRNA could be attributed to miRNA targeting FOXO gene.
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Affiliation(s)
- Noha S Kandil
- Department of Chemical Pathology, Medical Research Institute, Alexandria University, Egypt. ,For Correspondence:
| | - Lamia Said Kandil
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University, Egypt. ,Lecturer in the School of Biological Sciences, Faculty of Science, University of East Anglia, UK.
| | - Radwa Mohamed
- Department of Pathology, Medical Research Institute, Alexandria University, Egypt.
| | - Mohamed Selima
- Department of Surgery, Medical Research Institute, Alexandria University, Egypt.
| | - Mohamed El Nemr
- Department of Cancer Management and Research, Medical Research Institute, Alexandria University, Alexandria, Egypt. ,Centre hospitalier de Troyes, radiotherapy department, France.
| | | | - Yasmine Nagy Alwany
- Department of Cancer Management and Research, Medical Research Institute, Alexandria University, Alexandria, Egypt.
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21
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Chen S, Wang Y, Li D, Wang H, Zhao X, Yang J, Chen L, Guo M, Zhao J, Chen C, Zhou Y, Liang G, Xu L. Mechanisms Controlling MicroRNA Expression in Tumor. Cells 2022; 11:cells11182852. [PMID: 36139427 PMCID: PMC9496884 DOI: 10.3390/cells11182852] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) are widely present in many organisms and regulate the expression of genes in various biological processes such as cell differentiation, metabolism, and development. Numerous studies have shown that miRNAs are abnormally expressed in tumor tissues and are closely associated with tumorigenesis. MiRNA-based cancer gene therapy has consistently shown promising anti-tumor effects and is recognized as a new field in cancer treatment. So far, some clinical trials involving the treatment of malignancies have been carried out; however, studies of miRNA-based cancer gene therapy are still proceeding slowly. Therefore, furthering our understanding of the regulatory mechanisms of miRNA can bring substantial benefits to the development of miRNA-based gene therapy or other combination therapies and the clinical outcome of patients with cancer. Recent studies have revealed that the aberrant expression of miRNA in tumors is associated with promoter sequence mutation, epigenetic alteration, aberrant RNA modification, etc., showing the complexity of aberrant expression mechanisms of miRNA in tumors. In this paper, we systematically summarized the regulation mechanisms of miRNA expression in tumors, with the aim of providing assistance in the subsequent elucidation of the role of miRNA in tumorigenesis and the development of new strategies for tumor prevention and treatment.
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Affiliation(s)
- Shipeng Chen
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Ya Wang
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Dongmei Li
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Hui Wang
- The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Xu Zhao
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Jing Yang
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Longqing Chen
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Mengmeng Guo
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Juanjuan Zhao
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Chao Chen
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
| | - Ya Zhou
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Medical Physics, Zunyi Medical University, Zunyi 563000, China
- Correspondence: (Y.Z.); (G.L.); (L.X.)
| | - Guiyou Liang
- Department of Cardiovascular Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550031, China
- Department of Cardiovascular Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
- Correspondence: (Y.Z.); (G.L.); (L.X.)
| | - Lin Xu
- Special Key Laboratory of Gene Detection and Therapy & Base for Talents in Biotherapy of Guizhou Province, Zunyi 563000, China
- Department of Immunology, Zunyi Medical University, Zunyi 563000, China
- Correspondence: (Y.Z.); (G.L.); (L.X.)
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22
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circFOXO3 Induced by KLF16 Modulates Clear Cell Renal Cell Carcinoma Growth and Natural Killer Cell Cytotoxic Activity through Sponging miR-29a-3p and miR-122-5p. DISEASE MARKERS 2022; 2022:6062236. [PMID: 36072902 PMCID: PMC9444423 DOI: 10.1155/2022/6062236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 03/24/2022] [Accepted: 08/03/2022] [Indexed: 11/18/2022]
Abstract
Renal cell carcinoma (RCC) is one of the most common urological malignancies with high incidence and metastatic relapse. Clear cell RCC (ccRCC) comprises nearly 70% of all RCC cases and is responsible for the majority of morbidity and mortality of RCC. Due to the poor diagnosis strategy and unsatisfactory clinical intervention, ccRCC causes a huge economic burden and poor patient quality of life; therefore, novel diagnostic or therapeutic targets for ccRCC are urgently needed. This study investigated the biological role of circFOXO3 in ccRCC development, showing that circFOXO3 is highly expressed in RCC cells and tissues and inhibits the viability of ccRCC cells. circFOXO3 dysregulation regulates NK cell cytotoxicity towards RCC cells by directly sponging miR-29a-3p and miR-122-5p. Overexpression of miR-29a-3p or miR-122-5p attenuated NK cell toxicity towards RCC cells and the transcriptional factor Kruppel-Like Factor 16 (KLF16) regulates circFOXO3 expression in RCC cells. In conclusion, this study has partially elucidated the function of circFOXO3 in ccRCC development, providing potential novel therapeutic targets for ccRCC.
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23
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Zhu Y, Huang G, Li S, Xiong H, Chen R, Zuo L, Liu H. CircSMARCA5: A key circular RNA in various human diseases. Front Genet 2022; 13:921306. [PMID: 36081987 PMCID: PMC9445203 DOI: 10.3389/fgene.2022.921306] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/13/2022] [Indexed: 11/16/2022] Open
Abstract
Circular RNAs (circRNAs) are recognized as a novel type of single-stranded endogenous noncoding RNA molecule with the characteristics of tissue specificity, sequence conservation and structural stability. Accumulating studies have shown that circRNAs play a unique biological role in different kinds of diseases. CircRNAs can affect tumor proliferation, migration, metastasis and other behaviors by modulating the expression of downstream genes. CircSMARCA5, an example of a circRNA, is dysregulated in various noninfectious diseases, such as tumors, osteoporosis, atherosclerosis and coronary heart disease. Furthermore, recent studies have demonstrated that circSMARCA5 is associated with the occurrence and development of a variety of tumors, including gastric cancer, glioblastoma, hepatocellular carcinoma, multiple myeloma, colorectal cancer, breast cancer and osteosarcoma. Mechanistically, circSMARCA5 primarily acts as a sponge of miRNAs to regulate the expression of downstream genes, and can serve as a potential biomarker for the diagnosis of malignant tumors. This review summarizes the biological roles of circSMARCA5 and its molecular mechanism of action in various diseases. Moreover, the meta-analysis of some publications showed that the expression of circSMARCA5 was significantly correlated with the prognosis of patients and tumor TNM stage, showing that circSMARCA5 has the potential to be a prognostic marker.
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Affiliation(s)
- Yi Zhu
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Gaozhen Huang
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Shihao Li
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hong Xiong
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ruiqi Chen
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Ling Zuo
- Department of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- *Correspondence: Ling Zuo, ; Hongwei Liu,
| | - Hongwei Liu
- Department of Urology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
- *Correspondence: Ling Zuo, ; Hongwei Liu,
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Goenka A, Tiek DM, Song X, Iglesia RP, Lu M, Hu B, Cheng SY. The Role of Non-Coding RNAs in Glioma. Biomedicines 2022; 10:2031. [PMID: 36009578 PMCID: PMC9405925 DOI: 10.3390/biomedicines10082031] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/14/2022] [Accepted: 08/16/2022] [Indexed: 12/14/2022] Open
Abstract
For decades, research in cancer biology has been focused on the protein-coding fraction of the human genome. However, with the discovery of non-coding RNAs (ncRNAs), it has become known that these entities not only function in numerous fundamental life processes such as growth, differentiation, and development, but also play critical roles in a wide spectrum of human diseases, including cancer. Dysregulated ncRNA expression is found to affect cancer initiation, progression, and therapy resistance, through transcriptional, post-transcriptional, or epigenetic processes in the cell. In this review, we focus on the recent development and advances in ncRNA biology that are pertinent to their role in glioma tumorigenesis and therapy response. Gliomas are common, and are the most aggressive type of primary tumors, which account for ~30% of central nervous system (CNS) tumors. Of these, glioblastoma (GBM), which are grade IV tumors, are the most lethal brain tumors. Only 5% of GBM patients survive beyond five years upon diagnosis. Hence, a deeper understanding of the cellular non-coding transcriptome might help identify biomarkers and therapeutic agents for a better treatment of glioma. Here, we delve into the functional roles of microRNA (miRNA), long non-coding RNA (lncRNA), and circular RNA (circRNA) in glioma tumorigenesis, discuss the function of their extracellular counterparts, and highlight their potential as biomarkers and therapeutic agents in glioma.
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Affiliation(s)
- Anshika Goenka
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Deanna Marie Tiek
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Xiao Song
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Rebeca Piatniczka Iglesia
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Minghui Lu
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Master of Biotechnology Program, Northwestern University, Evanston, IL 60208, USA
| | - Bo Hu
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Shi-Yuan Cheng
- The Ken & Ruth Davee Department of Neurology, Lou & Jean Malnati Brain Tumor Institute at Northwestern Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
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Chu C, Zhang Y, Liu Q, Pang Y, Niu Y, Zhang R. Identification of ceRNA network to explain the mechanism of cognitive dysfunctions induced by PS NPs in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113785. [PMID: 35753268 DOI: 10.1016/j.ecoenv.2022.113785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Plastics breaking down of larger plastics into smaller ones (microplastics and nanoplastic) as potential threats to the ecosystem. Previous studies demonstrate that the central nervous system (CNS) is a vulnerable target of nanoplastics. However, the potentially epigenetic biomarkers of nanoplastic neurotoxicity in rodent models are still unknown. The present research aimed to determine the role of competing endogenous RNA (ceRNA) in the process of polystyrene nanoplastics (PS NPs) exposure-induced nerve injury. The study was designed to investigate whether 25 nm PS NPs could cause learning dysfunction and to elucidate the underlying mechanisms in mice. A total of 40 mice were divided into 4 groups and were exposed to PS NPs (0, 10, 25, 50 mg/kg). Chronic toxicity was introduced in mice by administration of oral gavage for 6 months. The evaluation included assessment of their behavior, pathological investigation and determination of the levels of reactive oxygen species (ROS) and DNA damage. RNA-Seq was performed to detect the expression levels of circRNAs, miRNAs and mRNAs in PFC samples of mice treated with 0 and 50 mg/kg PS NPs. The results indicated that exposure of mice to PS NPs caused a dose-dependent cognitive decline. ROS levels and DNA damage were increased in the PFC following exposure of the mice to PS NPs. A total of 987 mRNAs, 29 miRNAs and 67 circRNAs demonstrated significant differences between the 0 and 50 mg/kg PS NPs groups. Functional enrichment analyses indicated that PS NPs may induce major injury in the synaptic function. A total of 96 mRNAs, which were associated with synaptic dysfunction were identified. A competing endogenous RNA (ceRNA) network containing 27 circRNAs, 19 miRNAs and 35 synaptic dysfunction-related mRNAs was constructed. The present study provided insight into the molecular events associated with nanoplastic toxicity and induction of cognitive dysfunction.
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Affiliation(s)
- Chen Chu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China; Department of Preventative Ophthalmology, Shanghai Eye Disease Prevention and Treatment Center, Shanghai Eye Hospital, 200040, China
| | - Yaling Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China
| | - Qingping Liu
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China
| | - Yaxian Pang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China
| | - Yujie Niu
- Deportment Occupational Health and Environmental Health, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China
| | - Rong Zhang
- Department of Toxicology, School of Public Health, Hebei Medical University, Shijiazhuang 050017, China; Hebei Key Laboratory of Environment and Human Health, Shijiazhuang 050017, China.
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26
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Role of Circular RNA in Brain Tumor Development. Cells 2022; 11:cells11142130. [PMID: 35883576 PMCID: PMC9315629 DOI: 10.3390/cells11142130] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/04/2022] [Accepted: 07/04/2022] [Indexed: 11/20/2022] Open
Abstract
Central nervous system tumors are a leading cause of cancer-related death in children and adults, with medulloblastoma (MB) and glioblastoma (GBM) being the most prevalent malignant brain tumors, respectively. Despite tremendous breakthroughs in neurosurgery, radiation, and chemotherapeutic techniques, cell heterogeneity and various genetic mutations impacting cell cycle control, cell proliferation, apoptosis, and cell invasion result in unwanted resistance to treatment approaches, with a 5-year survival rate of 70–80% for medulloblastoma, and the median survival time for patients with glioblastoma is only 15 months. Developing new medicines and utilizing combination medications may be viewed as excellent techniques for battling MB and GBM. Circular RNAs (circRNAs) can affect cancer-developing processes such as cell proliferation, cell apoptosis, invasion, and chemoresistance in this regard. As a result, several compounds have been introduced as prospective therapeutic targets in the fight against MB and GBM. The current study aims to elucidate the fundamental molecular and cellular mechanisms underlying the pathogenesis of GBM in conjunction with circRNAs. Several mechanisms were examined in detail, including PI3K/Akt/mTOR signaling, Wnt/-catenin signaling, angiogenic processes, and metastatic pathways, in order to provide a comprehensive knowledge of the involvement of circRNAs in the pathophysiology of MB and GBM.
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Circular RNA VPS18 Promotes Glioblastoma Progression by Regulating miR-1229-3p/BCAT1 Axis. Neurotox Res 2022; 40:1138-1151. [PMID: 35776379 DOI: 10.1007/s12640-022-00530-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 01/22/2023]
Abstract
Circular RNAs (circRNAs) have been verified to play important roles in malignant tumors, including glioblastoma. The aim of this study is to explore the biological roles and underlying mechanisms of circRNA vacuolar protein sorting 18 homolog (circVPS18) in glioblastoma. A quantitative real-time polymerase chain reaction (qRT-PCR) was performed to measure the expression of circVPS18, microRNA (miR)-1299-3p, and branched-chain amino acid transaminase 1 (BCAT1). In vitro experiments were conducted using 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, transwell, and tube formation assays, respectively. Western blot was conducted to examine all protein levels. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were employed to confirm the interaction between miR-1229-3p and circVPS18 or BCAT1. The murine xenograft model was established to conduct in vivo assay. CircVPS18 and BCAT1 were highly expressed while miR-1229-3p was lowly expressed in glioblastoma tissues and cells. CircVPS18 knockdown inhibited glioblastoma progression by inhibiting cell proliferation, migration, invasion, and angiogenesis, and promoting cell apoptosis. Moreover, miR-1229-3p could be targeted by circVPS18; inhibition of miR-1229-3p could invert the suppressive effect of circVPS18 knockdown on glioblastoma tumorigenesis. Furthermore, BCAT1 was a target of miR-1229-3p; functionally, BCAT1 overexpression could reverse the inhibitory effects of miR-1229-3p upregulation on glioblastoma cell malignant phenotypes. Moreover, we also verified that circVPS18A could regulate BCAT1 expression by sponging miR-1229-3p. Additionally, circVPS18 silencing also restrained tumor growth and metastasis in vivo. CircVPS18 accelerated glioblastoma progression by miR-1229-3p/BCAT1 axis, providing a potential therapeutic target for glioblastoma.
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Gao J, Zhang LX, Ao YQ, Jin C, Zhang PF, Wang HK, Wang S, Lin M, Jiang JH, Ding JY. Elevated circASCC3 limits antitumor immunity by sponging miR-432–5p to upregulate C5a in non-small cell lung cancer. Cancer Lett 2022; 543:215774. [DOI: 10.1016/j.canlet.2022.215774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 05/20/2022] [Accepted: 05/31/2022] [Indexed: 11/02/2022]
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Wang M, Chen B, Zhang W, Zhang F, Qiu Y, Lin Y, Yang S. Dematin inhibits glioblastoma malignancy through RhoA-mediated CDKs downregulation and cytoskeleton remodeling. Exp Cell Res 2022; 417:113196. [PMID: 35561787 DOI: 10.1016/j.yexcr.2022.113196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 04/06/2022] [Accepted: 05/05/2022] [Indexed: 12/24/2022]
Abstract
Glioblastoma multiforme (GBM) is well known as a highly aggressive brain tumor subtype. Here, we show that overexpression (OE) of dematin actin-binding protein (DMTN) inhibits GBM proliferation and invasion by affecting cell cycle regulation and actin remodeling, respectively. RT-qPCR, western blotting, and immunohistochemical (IHC) staining demonstrated a significant reduction in DMTN expression in gliomas, especially in high-grade gliomas (HGG) compared with normal brains, which correlates with worse survival in HGG patients. Functional studies revealed inhibitory effects of DMTN on tumor proliferation and migratory capacities. The attenuation in tumor proliferative ability upon DMTN OE was accompanied by RhoA suppression and CDK1, CDK2, CDK4, and cyclin D1 downregulation, while RhoA rescue restored the proliferative phenotype. Meanwhile, overexpression of DMTN produced profoundly disorganized stress fibers, which led to impaired tumor invasion. Furthermore, DMTN overexpression produced substantial suppression of tumor growth upon subcutaneous and intracranial implantation in mice, and this was accompanied by significantly reduced vinculin expression and Ki67 positivity. Taken together, these findings demonstrate the role of DMTN in regulating GBM cell proliferation, actin cytoskeleton, and cell morphology and identify DMTN as a vital tumor suppressor in GBM progression.
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Affiliation(s)
- Mengying Wang
- Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China; Shanghai Cancer Institute, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Binghong Chen
- Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China; Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350001, PR China
| | - Wenrui Zhang
- Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China; Shanghai Cancer Institute, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Fengchen Zhang
- Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Yongming Qiu
- Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China
| | - Yingying Lin
- Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China; Shanghai Cancer Institute, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China.
| | - Shaofeng Yang
- Brain Injury Center, Department of Neurosurgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, PR China.
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Liu T, Li T, Zheng Y, Xu X, Sun R, Zhan S, Guo X, Zhao Z, Zhu W, Feng B, Wei F, Jiang N, Wang J, Chen X, Fang F, Guo H, Yang R. Evaluating adipose-derived stem cell exosomes as miRNA drug delivery systems for the treatment of bladder cancer. Cancer Med 2022; 11:3687-3699. [PMID: 35441482 PMCID: PMC9554444 DOI: 10.1002/cam4.4745] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/10/2022] [Accepted: 03/31/2022] [Indexed: 12/24/2022] Open
Abstract
Objectives Exosomes are essential mediators of intercellular communication as they transport proteins and RNAs between cells. Owing to their tumor‐targeting capacity, immune compatibility, low toxicity, and long half‐life, mesenchymal stem cell‐derived exosomes have great potential for the development of novel antitumor strategies. In this context, the role of exosomes produced by adipose‐derived mesenchymal stem cells (ADSCs) for the treatment of bladder cancer (BC) remains unclear. Here, we investigated the use of ADSCs as a source of therapeutic exosomes, as well as their efficacy in delivering the tumor suppressor miR‐138‐5p in BC. Methods ADSCs stably expressing miR‐138‐5p were established using Lentivirus infection, and ADSC‐derived miR‐138‐5p exosomes (Exo‐miR‐138‐5p) were isolated from the cell culture medium. The effect of Exo‐miR‐138‐5p on BC cell migration, invasion, and proliferation was evaluated in vitro using wound healing, transwell invasion, and proliferation assays. The in vivo effect of Exo‐miR‐138‐5p was investigated using a subcutaneous xenograft mouse model. Results Exo‐miR‐138‐5p prevented the migration, invasion, and proliferation of BC cells in vitro. Moreover, ADSC‐derived exosomes could penetrate tumor tissues and successfully deliver miR‐138‐5p to suppress the growth of xenograft tumors in vivo. Conclusions The present results reveal that ADSC‐derived exosomes are an effective delivery vehicle for small molecule drugs in vivo, and exosome‐delivered miR‐138‐5p is a promising therapeutic agent for BC treatment.
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Affiliation(s)
- Tianyao Liu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Tianhang Li
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Yufeng Zheng
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xinyan Xu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Rui Sun
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Shoubin Zhan
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xu Guo
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Zihan Zhao
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wenjie Zhu
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Baofu Feng
- Department of Urology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Fayun Wei
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Ning Jiang
- Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, China
| | - Jin Wang
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xi Chen
- Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Feng Fang
- Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Hongqian Guo
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Rong Yang
- Department of Urology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
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31
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Chen P, Nie ZY, Liu XF, Zhou M, Liu XX, Wang B. CircXRCC5, as a potential novel biomarker, promotes glioma progression via the miR-490-3p/XRCC5/CLC3 ceRNA network. Neuroscience 2022; 494:104-118. [DOI: 10.1016/j.neuroscience.2021.12.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 10/18/2022]
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32
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Yang Z, Huang C, Wen X, Liu W, Huang X, Li Y, Zang J, Weng Z, Lu D, Tsang CK, Li K, Xu A. Circular RNA circ-FoxO3 attenuates blood-brain barrier damage by inducing autophagy during ischemia/reperfusion. Mol Ther 2022; 30:1275-1287. [PMID: 34763084 PMCID: PMC8899525 DOI: 10.1016/j.ymthe.2021.11.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 09/23/2021] [Accepted: 11/03/2021] [Indexed: 02/08/2023] Open
Abstract
Blood-brain barrier (BBB) damage can be a result of central nervous system (CNS) diseases and may be a cause of CNS deterioration. However, there are still many unknowns regarding effective and targeted therapies for maintaining BBB integrity during ischemia/reperfusion (I/R) injury. In this study, we demonstrate that the circular RNA of FoxO3 (circ-FoxO3) promotes autophagy via mTORC1 inhibition to attenuate BBB collapse under I/R. Upregulation of circ-FoxO3 and autophagic flux were detected in brain microvessel endothelial cells in patients with hemorrhagic transformation and in mice models with middle cerebral artery occlusion/reperfusion. In vivo and in vitro studies indicated that circ-FoxO3 alleviated BBB damage principally by autophagy activation. Mechanistically, we found that circ-FoxO3 inhibited mTORC1 activity mainly by sequestering mTOR and E2F1, thus promoting autophagy to clear cytotoxic aggregates for improving BBB integrity. These results demonstrate that circ-FoxO3 plays a novel role in protecting against BBB damage, and that circ-FoxO3 may be a promising therapeutic target for neurological disorders associated with BBB damage.
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Affiliation(s)
- Zhenguo Yang
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China,Affiliated Hospital of Guangdong Medical University, 57 South Renmin Ave, Zhanjiang 524001, China
| | - Cheng Huang
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Xueyi Wen
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Wenlin Liu
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China,Affiliated Hospital of Guangdong Medical University, 57 South Renmin Ave, Zhanjiang 524001, China
| | - Xiaoxiong Huang
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Yufeng Li
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Jiankun Zang
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Zean Weng
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Dan Lu
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Chi Kwan Tsang
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China
| | - Keshen Li
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China.
| | - Anding Xu
- Department of Neurology and Stroke Center, The First Affiliated Hospital, & Clinical Neuroscience Institute of Jinan University, 613 West Huangpu Ave, Guangzhou 510632, China.
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33
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Long G, Ma S, Shi R, Sun Y, Hu Z, Chen K. Circular RNAs and Drug Resistance in Genitourinary Cancers: A Literature Review. Cancers (Basel) 2022; 14:866. [PMID: 35205613 PMCID: PMC8869870 DOI: 10.3390/cancers14040866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 02/01/2023] Open
Abstract
In recent years, systematic treatment has made great progress in genitourinary tumors. However, some patients develop resistance to the treatments, resulting in an increase in mortality. Circular RNAs (circRNAs) form a class of non-coding RNAs with high stability and significant clinical relevance. Accumulating evidence indicates that circRNAs play a vital role in cancer development and tumor chemotherapy resistance. This review summarizes the molecular and cellular mechanisms of drug resistance mediated by circRNAs to common drugs used in the treatment of genitourinary tumors. Several circRNAs were identified to regulate the responsiveness to systemic treatments in genitourinary tumors, including chemotherapies such as cisplatin and targeted therapies such as enzalutamide. Canonically, cicrRNAs participate in the competing endogenous RNA (ceRNA) network, or in some cases directly interact with proteins, regulate downstream pathways, and even some circRNAs have the potential to produce proteins or polypeptides. Several cellular mechanisms were involved in circRNA-dependent drug resistance, including autophagy, cancer stem cells, epithelial-mesenchymal transition, and exosomes. The potential clinical prospect of circRNAs in regulating tumor drug resistance was also discussed.
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Affiliation(s)
- Gongwei Long
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (G.L.); (S.M.); (Y.S.)
- Hubei Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Siquan Ma
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (G.L.); (S.M.); (Y.S.)
- Hubei Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Runlin Shi
- Department of Urology, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China;
| | - Yi Sun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (G.L.); (S.M.); (Y.S.)
- Hubei Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhiquan Hu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (G.L.); (S.M.); (Y.S.)
- Hubei Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ke Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (G.L.); (S.M.); (Y.S.)
- Hubei Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Suwala AK, Felix M, Friedel D, Stichel D, Schrimpf D, Hinz F, Hewer E, Schweizer L, Dohmen H, Pohl U, Staszewski O, Korshunov A, Stein M, Wongsurawat T, Cheunsuacchon P, Sathornsumetee S, Koelsche C, Turner C, Le Rhun E, Mühlebner A, Schucht P, Özduman K, Ono T, Shimizu H, Prinz M, Acker T, Herold-Mende C, Kessler T, Wick W, Capper D, Wesseling P, Sahm F, von Deimling A, Hartmann C, Reuss DE. Oligosarcomas, IDH-mutant are distinct and aggressive. Acta Neuropathol 2022; 143:263-281. [PMID: 34967922 PMCID: PMC8742817 DOI: 10.1007/s00401-021-02395-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/15/2021] [Accepted: 12/05/2021] [Indexed: 01/21/2023]
Abstract
Oligodendrogliomas are defined at the molecular level by the presence of an IDH mutation and codeletion of chromosomal arms 1p and 19q. In the past, case reports and small studies described gliomas with sarcomatous features arising from oligodendrogliomas, so called oligosarcomas. Here, we report a series of 24 IDH-mutant oligosarcomas from 23 patients forming a distinct methylation class. The tumors were recurrences from prior oligodendrogliomas or developed de novo. Precursor tumors of 12 oligosarcomas were histologically and molecularly indistinguishable from conventional oligodendrogliomas. Oligosarcoma tumor cells were embedded in a dense network of reticulin fibers, frequently showing p53 accumulation, positivity for SMA and CALD1, loss of OLIG2 and gain of H3K27 trimethylation (H3K27me3) as compared to primary lesions. In 5 oligosarcomas no 1p/19q codeletion was detectable, although it was present in the primary lesions. Copy number neutral LOH was determined as underlying mechanism. Oligosarcomas harbored an increased chromosomal copy number variation load with frequent CDKN2A/B deletions. Proteomic profiling demonstrated oligosarcomas to be highly distinct from conventional CNS WHO grade 3 oligodendrogliomas with consistent evidence for a smooth muscle differentiation. Expression of several tumor suppressors was reduced with NF1 being lost frequently. In contrast, oncogenic YAP1 was aberrantly overexpressed in oligosarcomas. Panel sequencing revealed mutations in NF1 and TP53 along with IDH1/2 and TERT promoter mutations. Survival of patients was significantly poorer for oligosarcomas as first recurrence than for grade 3 oligodendrogliomas as first recurrence. These results establish oligosarcomas as a distinct group of IDH-mutant gliomas differing from conventional oligodendrogliomas on the histologic, epigenetic, proteomic, molecular and clinical level. The diagnosis can be based on the combined presence of (a) sarcomatous histology, (b) IDH-mutation and (c) TERT promoter mutation and/or 1p/19q codeletion, or, in unresolved cases, on its characteristic DNA methylation profile.
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35
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Salami R, Salami M, Mafi A, Vakili O, Asemi Z. Circular RNAs and glioblastoma multiforme: focus on molecular mechanisms. Cell Commun Signal 2022; 20:13. [PMID: 35090496 PMCID: PMC8796413 DOI: 10.1186/s12964-021-00809-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 11/25/2021] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma multiforme (GBM), as a deadly and almost incurable brain cancer, is the most invasive form of CNS tumors that affects both children and adult population. It accounts for approximately half of all primary brain tumors. Despite the remarkable advances in neurosurgery, radiotherapy, and chemotherapeutic approaches, cell heterogeneity and numerous genetic alterations in cell cycle control, cell growth, apoptosis, and cell invasion, result in an undesirable resistance to therapeutic strategies; thereby, the median survival duration for GBM patients is unfortunately still less than two years. Identifying new therapeutics and employing the combination therapies may be considered as wonderful strategies against the GBM. In this regard, circular RNAs (circRNAs), as tumor inhibiting and/or stimulating RNA molecules, can regulate the cancer-developing processes, including cell proliferation, cell apoptosis, invasion, and chemoresistance. Hereupon, these molecules have been introduced as potentially effective therapeutic targets to defeat GBM. The current study aims to investigate the fundamental molecular and cellular mechanisms in association with circRNAs involved in GBM pathogenesis. Among multiple mechanisms, the PI3K/Akt/mTOR, Wnt/β-catenin, and MAPK signaling, angiogenic processes, and metastatic pathways will be thoroughly discussed to provide a comprehensive understanding of the role of circRNAs in pathophysiology of GBM. Video Abstract.
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Affiliation(s)
- Raziyeh Salami
- Department of Clinical Biochemistry, School of Medicine, Hamedan University of Medical Sciences, Hamedan, Iran
| | - Marziyeh Salami
- Department of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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Tumor-associated macrophages promote cholangiocarcinoma progression via exosomal Circ_0020256. Cell Death Dis 2022; 13:94. [PMID: 35091535 PMCID: PMC8799724 DOI: 10.1038/s41419-022-04534-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 12/14/2021] [Accepted: 01/13/2022] [Indexed: 12/18/2022]
Abstract
This study investigated the exosomal circular RNAs (CircRNAs) produced by tumor-associated macrophages and delivered into the microenvironment of cholangiocarcinoma cells in order to use them as molecular targets for clinical therapy. Tumor-associated M2 macrophages (TAMs) were induced from THP-1 cells and identified by flow cytometry. The TAM-secreted exosomes were isolated from conditioned medium and a CircRNA microarray assay was performed to identify CircRNAs that were uniquely expressed in the isolated exosomes. Circ_0020256 was especially identified based on having the highest differential expression level among all of the CircRNA candidates. In vitro and in vivo experiments were performed to assess the effects of TAMs, exosomes, and Circ_0020256 on the growth and migration of cholangiocarcinoma (CCA) cells. The induced TAMs promoted the proliferation, migration, and invasion of CCA cells and those effects were mediated by exosomes secreted by the TAMs. In CCA cells (RBE and HCCC-9810), Circ_0020256 significantly promoted cellular activity by interacting with its intra-cellular microRNA target, miR-432-5p. In contrast, overexpression of transcription factor E2F3 in CCA cells restored the CCA cellular activities that were inhibited by miR-432-5p. On the other hand, treatment with small interference RNA (siRNA) for Circ_0020256 inhibited CCA cell proliferation, migration, and invasion both in vitro and in vivo. In conclusion, Circ_0020256 in TAM-secreted exosomes promoted the proliferation, migration, and invasion of CCA cells, and that promotional activity was regulated via a Circ_0020256/miR-432-5p/E2F3 axis.
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Yang J, Tian S, Wang B, Wang J, Cao L, Wang Q, Xie W, Liang Z, Zhao H, Zhao Y, Liao K, Ma J. CircPIK3C2A Facilitates the Progression of Glioblastoma via Targeting miR-877-5p/FOXM1 Axis. Front Oncol 2022; 11:801776. [PMID: 35004326 PMCID: PMC8739489 DOI: 10.3389/fonc.2021.801776] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 12/01/2021] [Indexed: 11/23/2022] Open
Abstract
Glioblastoma is a rare yet lethal type of tumor that poses a crucible for the medical profession, owing to its rapid proliferation and invasion resulting in poor prognosis. Circular RNAs (circRNAs), a subclass of regulatory RNAs, are implicated in the regulation of cancerous progression. This study aims to investigate the roles and underlying mechanism of circPIK3C2A in regulating proliferation and invasion of glioblastoma. qRT-PCR assays showed that the expression level of circPIK3C2A was aberrantly higher in glioblastoma cell lines, in comparison with that in normal glia cells. The ectopic expression of circPIK3C2A promoted the proliferation, invasion and clonal formation of glioblastoma cells, while circPIK3C2A loss-of-function exerted exactly the opposite biological effects on the cells. The construction of subcutaneous xenograft tumor model in nude mice indicated that circPIK3C2A loss-of-function effectively diminished tumor load in vivo and prolonged the survival time of tumor-bearing animals. Luciferase reporter assay confirmed the interaction among circPIK3C2A/miR-877-5p and FOXM1. CircPIK3C2A function as competitive endogenous RNA via sponging miR-877-5p through certain binding sites, thereby modulating the expression of FOXM1. Our results collectively indicate that circPIK3C2A functions as ceRNA by mediating miR-877-5p/FOXM1 axis, providing a novel perspective of applying CircPIK3C2A in the clinical intervention of glioblastoma in the future.
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Affiliation(s)
- Jian Yang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shuaiwei Tian
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Baocheng Wang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiajia Wang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liangliang Cao
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qinhua Wang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wanqun Xie
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhuangzhuang Liang
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Heng Zhao
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Zhao
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Keman Liao
- Brain Injury Center, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Ma
- Department of Pediatric Neurosurgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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CircRNA circ_0006156 inhibits the metastasis of prostate cancer by blocking the ubiquitination of S100A9. Cancer Gene Ther 2022; 29:1731-1741. [PMID: 35760899 PMCID: PMC9663304 DOI: 10.1038/s41417-022-00492-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/10/2022] [Accepted: 06/08/2022] [Indexed: 02/04/2023]
Abstract
Circular RNAs (circRNAs) have been demonstrated to play vital roles in cancer development and progression. However, studies on the association between circRNAs and prostate cancer (PCa) are still lacking. CircRNA sequencing of two pairs of PCa tissues and adjacent normal tissues was conducted in the present study, and qRT-PCR was performed to verify the results. Functional experiments were performed to investigate cellular functions after specific changes. Mass spectrometry analysis after RNA pull-down experiments and Co-IP assays were further conducted. Downstream target proteins were predicted via online databases and detected in vitro by Western blot analysis and in vivo by immunohistochemistry. Hsa_circ_0006156 (subsequently named circ_0006156) expresses at low levels in both PCa tissues and cells, and it significantly inhibits the migration and invasion of PCa cells. Circ_0006156 binds to and blocks the ubiquitination of S100A9. Moreover, functional assays revealed that circ_0006156 represses the malignant progression of PCa by binding to S100A9. Finally, in vivo experiments showed that circ_0006156 suppresses PCa migration and invasion by increasing S100A9, revealing circ_0006156 as a potential novel effective target for PCa treatment.
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Cai Zhang, Li B, Huang Y, Gao S, Gao X. Biogenesis, Functions, and Cancer Relationships of a Specific Circular RNA: CircFoxo3. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s106816202106025x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Guo X, Piao H. Research Progress of circRNAs in Glioblastoma. Front Cell Dev Biol 2021; 9:791892. [PMID: 34881248 PMCID: PMC8645988 DOI: 10.3389/fcell.2021.791892] [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] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 11/02/2021] [Indexed: 01/10/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of single-stranded covalently closed non-coding RNAs without a 5' cap structure or 3' terminal poly (A) tail, which are expressed in a variety of tissues and cells with conserved, stable and specific characteristics. Glioblastoma (GBM) is the most aggressive and lethal tumor in the central nervous system, characterized by high recurrence and mortality rates. The specific expression of circRNAs in GBM has demonstrated their potential to become new biomarkers for the development of GBM. The specific expression of circRNAs in GBM has shown their potential as new biomarkers for GBM cell proliferation, apoptosis, migration and invasion, which provides new ideas for GBM treatment. In this paper, we will review the biological properties and functions of circRNAs and their biological roles and clinical applications in GBM.
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Affiliation(s)
- Xu Guo
- Department of Neurosurgery, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, China
| | - Haozhe Piao
- Department of Neurosurgery, Liaoning Cancer Hospital and Institute, Cancer Hospital of China Medical University, Shenyang, China
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41
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Sun G, Shen JF, Wei XF, Qi GX. Circular RNA Foxo3 Relieves Myocardial Ischemia/Reperfusion Injury by Suppressing Autophagy via Inhibiting HMGB1 by Repressing KAT7 in Myocardial Infarction. J Inflamm Res 2021; 14:6397-6407. [PMID: 34880642 PMCID: PMC8647308 DOI: 10.2147/jir.s339133] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/18/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction Myocardial infarction is coronary artery-related heart disease, and the leading cause of mortality globally. Circular RNAs (circRNAs) are a new type of regulatory RNAs and participate in multiple pathological cardiac progression. Methods However, the function of circFoxo3 in MI-induced myocardial injury remains obscure. Results Significantly, we identified that circFoxo3 was downregulated in the MI rat model and the overexpression of circFoxo3 ameliorated MI-induced cardiac dysfunction and attenuated MI-induced autophagy in rat model. Meanwhile, the overexpression of circFoxo3 repressed oxygen–glucose deprivation (OGD)-induced autophagy, apoptosis, inflammation, and injury of cardiomyocyte in vitro. Mechanically, we identified that the expression of KAT7 was reduced by circFoxo3 overexpression in cardiomyocytes. Meanwhile, the expression of HMGB1 was repressed by the depletion of KAT7 in cardiomyocytes. The enrichment of histone H3 lysine 14 acetylation (H3K14ac) and RNA polymerase II (RNA pol II) on HMGB1 promoter was inhibited by the knockdown of KAT7. Moreover, the overexpression of circFoxo3 suppressed HMGB1 expression and KAT7 overexpression rescued the expression of HMGB1 in cardiomyocytes. The enrichment of KAT7, H3K14ac, and RNA poly II on HMGB1 promoter was decreased by circFoxo3 overexpression, while the overexpression of KAT7 could reverse the effect. The overexpression of KAT7 or HMGB1 could reverse circFoxo3-attenuated cardiomyocyte injury and autophagy in vitro. Thus, we conclude that circular RNA circFoxo3 relieved myocardial ischemia/reperfusion injury by suppressing autophagy via inhibiting HMGB1 by repressing KAT7 in MI. Discussion Our finding provides new insight into the mechanism by which circFoxo3 regulates MI-related cardiac dysfunction by targeting KAT7/HMGB1 axis.
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Affiliation(s)
- Guang Sun
- Department of Geriatric Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, People's Republic of China
| | - Jian-Fen Shen
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, People's Republic of China
| | - Xiu-Fang Wei
- Department of Geriatric Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, People's Republic of China
| | - Guo-Xian Qi
- Department of Geriatric Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, 110001, People's Republic of China
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Chen S, Deng X, Sheng H, Rong Y, Zheng Y, Zhang Y, Lin J. Noncoding RNAs in pediatric brain tumors: Molecular functions and pathological implications. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 26:417-431. [PMID: 34552822 PMCID: PMC8426460 DOI: 10.1016/j.omtn.2021.07.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Brain tumors are common solid pediatric malignancies and the main reason for cancer-related death in the pediatric setting. Recently, evidence has revealed that noncoding RNAs (ncRNAs), including microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs), play a critical role in brain tumor development and progression. Therefore, in this review article, we describe the functions and molecular mechanisms of ncRNAs in multiple types of cancer, including medulloblastoma, pilocytic astrocytoma, ependymoma, atypical teratoid/rhabdoid tumor, glioblastoma, diffuse intrinsic pontine glioma, and craniopharyngioma. We also mention the limitations of using ncRNAs as therapeutic targets because of the nonspecificity of ncRNA targets and the delivery methods of ncRNAs. Due to the critical role of ncRNAs in brain oncogenesis, targeting aberrantly expressed ncRNAs might be an effective strategy to improve the outcomes of pediatric patients with brain tumors.
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Affiliation(s)
- Shaohuai Chen
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiangyang Deng
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hansong Sheng
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuxi Rong
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yanhao Zheng
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yusong Zhang
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian Lin
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
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Luo H, Yi T, Huang D, Chen X, Li X, Wan Q, Huang H, Huang H, Wei H, Song Y, Que T, Hu R, Huang H, Luo K, Li C, Qin C, Zheng C, Lan C, Chen W, Zhou D, Luo Q. circ_PTN contributes to -cisplatin resistance in glioblastoma via PI3K/AKT signaling through the miR-542-3p/PIK3R3 pathway. MOLECULAR THERAPY - NUCLEIC ACIDS 2021; 26:1255-1269. [PMID: 34853725 PMCID: PMC8607136 DOI: 10.1016/j.omtn.2021.08.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 08/31/2021] [Indexed: 10/24/2022]
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Zhou L, Wu B, Yang J, Wang B, Pan J, Xu D, Du C. Knockdown of circFOXO3 ameliorates cigarette smoke-induced lung injury in mice. Respir Res 2021; 22:294. [PMID: 34789242 PMCID: PMC8597310 DOI: 10.1186/s12931-021-01883-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/30/2021] [Indexed: 12/26/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) remains a prevalent chronic airway inflammatory disease. Circular RNAs (circRNAs) are associated with inflammation regulation; therefore, we examined distinct effects of circRNA FOXO3 (circFOXO3) against pneumonic inflammatory processes in COPD. Methods We first quantified and localized circFOXO3 in mouse lung epithelial cell line MLE12 by quantitative reverse-transcription PCR and in situ hybridization. Next, circFOXO3 was suppressed by therapeutic administration of circFOXO3 knockdown lentivirus in mice exposed to air or cigarette smoke (CS) for 12 weeks, and several hallmarks of COPD were evaluated. Results We noticed that circFOXO3 is upregulated in CS-exposed lungs and cigarette smoke extract (CSE)-treated murine alveolar epithelial cells. Knockdown of circFOXO3 attenuated the release of CXCL1 and IL-6 as well as inflammatory processes in the lungs of CS-exposed mice. In addition, we identified miR-214-3p as a circFOXO3-targeted microRNA. MiR-214-3p overexpression exerted protective effects against pneumonic inflammation after CS exposure. Silencing of circFOXO3 downregulated IKK-β mRNA (miR-214-3p’s target), resulting in the dysfunction of the NF-κB signaling pathway and attenuation of CSE-induced inflammatory-cytokine expression. Conclusions Collectively, these findings reveal a crucial function of circFOXO3 in the pathological remodeling related to CS-induced inflammatory processes. Hence, circFOXO3 might be a good target for the treatment of inflammatory disorders similar to CS-induced lung inflammation.
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Affiliation(s)
- Lei Zhou
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China
| | - Bo Wu
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China
| | - Jun Yang
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China
| | - Bing Wang
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China
| | - Jing Pan
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China
| | - Donghui Xu
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China
| | - Chunling Du
- Department of Respiratory Medicine, QingPu Branch of Zhongshan Hospital Affiliated To Fudan University, No.1158 Gongyuan Dong Road, Shanghai, 201700, China.
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Chen M, Yan C, Zhao X. Research Progress on Circular RNA in Glioma. Front Oncol 2021; 11:705059. [PMID: 34745938 PMCID: PMC8568300 DOI: 10.3389/fonc.2021.705059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 10/06/2021] [Indexed: 12/12/2022] Open
Abstract
The discovery of circular RNA (circRNA) greatly complements the traditional gene expression theory. CircRNA is a class of non-coding RNA with a stable cyclic structure. They are highly expressed, spatiotemporal-specific and conservative across species. Importantly, circRNA participates in the occurrence of many kinds of tumors and regulates the tumor development. Glioma is featured by limited therapy and grim prognosis. Cancer-associated circRNA compromises original function or creates new effects in glioma, thus contributing to oncogenesis. Therefore, this article reviews the biogenesis, metabolism, functions and properties of circRNA as a novel potential biomarker for gliomas. We elaborate the expression characteristics, interaction between circRNA and other molecules, aiming to identify new targets for early diagnosis and treatment of gliomas.
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Affiliation(s)
- Mengyu Chen
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Chunyan Yan
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xihe Zhao
- Department of Clinical Oncology, Shengjing Hospital of China Medical University, Shenyang, China
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Comprehensive Characterization of Androgen-Responsive circRNAs in Prostate Cancer. Life (Basel) 2021; 11:life11101096. [PMID: 34685466 PMCID: PMC8538364 DOI: 10.3390/life11101096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 01/22/2023] Open
Abstract
The androgen receptor (AR) signaling pathway plays an important role in the initiation and progression of prostate cancer. Circular RNAs (circRNAs), the novel noncoding RNAs without 5′ to 3′ polarity or 3′ poly (A), play an important role in multiple diseases. However, the potential roles of androgen-responsive circRNAs in prostate cancer remain unclear. In this study, we identified 3237 androgen-responsive circRNAs and 1954 androgen-responsive mRNAs after dihydrotestosterone (DHT) stimulation using microarray. Among them, the expression of 1296 androgen-responsive circRNAs was consistent with that of their parent genes, and we thought AR might regulate the expression of these circRNAs at the transcriptional level. In addition, 1941 circRNAs expression was not consistent with their parent genes, and we speculated that AR may regulate the expression of those circRNAs at the posttranscriptional level through affecting alternative splicing. Analyzing the androgen-responsive circRNAs regulated at the posttranscriptional level, we identified two key RNA binding proteins (RBPs), WTAP and TNRC6, using the circInteractome database, which may play important role in the biogenesis of androgen-responsive circRNAs. Furthermore, we explored the potential biological functions and predicted the molecular mechanisms of two dysregulated circRNAs (circNFIA and circZNF561) in prostate cancer. In this study, we revealed that circNFIA was upregulated in prostate cancer tissues and plasma samples from patients with prostate cancer; circNFIA may play an oncogenic role in prostate cancer. In contrast, circZNF561 was downregulated and may act as a tumor suppressor in prostate cancer. Our results suggest that androgen-responsive circRNAs might regulate the progression of prostate cancer and could be novel diagnostic biomarkers.
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Liu R, Dai W, Wu A, Li Y. CircCDC45 promotes the malignant progression of glioblastoma by modulating the miR-485-5p/CSF-1 axis. BMC Cancer 2021; 21:1090. [PMID: 34627193 PMCID: PMC8501713 DOI: 10.1186/s12885-021-08803-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 09/22/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Glioblastoma (GBM) is characterized by progressive growth and metastasis. Numerous studies claim that the deregulation of circular RNAs (circRNAs) is associated with cancer progression. However, the role of circRNAs in GBM is largely limited. The purpose of this study was to investigate the functions of circCDC45 in GBM and provide a feasible functional mechanism to support its role. METHODS The expression of circCDC45, miR-485-5p and colony-stimulating factor 1 (CSF-1) mRNA was examined using quantitative real-time polymerase chain reaction (qRT-PCR). Cell proliferation was assessed using cell counting kit - 8 (CCK-8) assay and colony formation assay. Cell migration and cell invasion were monitored using transwell assay. The protein levels of proliferation-related markers and CSF-1 were determined using western blot. The target relationship was predicted using bioinformatics tools and validated using dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay. Animal models were constructed to verify the role of circCDC45 in vivo. RESULTS The expression of circCDC45 and CSF-1 was elevated in GBM tissues and cells, while the expression of miR-485-5p was declined. Downregulation of circCDC45 or CSF-1 blocked GBM cell proliferation, invasion and migration as well as tumor growth in vivo. In mechanism, circCDC45 positively regulated the expression of CSF-1 by targeting miR-485-5p. Inhibition of miR-485-5p reversed the biological effects caused by circCDC45 downregulation in GBM cells. CONCLUSION CircCDC45 promoted the progression of GBM by mediating the miR-485-5p/CSF-1 axis, and circCDC45 might be a promising plasmatic biomarker for GBM diagnosis and treatment.
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Affiliation(s)
- Rongcai Liu
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
| | - Weimin Dai
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China.
| | - An Wu
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
| | - Yunping Li
- Department of Neurosurgery, Quzhou People's Hospital, No. 2, Zhongloudi, Kecheng District, Quzhou, 324000, Zhejiang, China
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Wang L, Chen J, Lu C. Circular RNA Foxo3 enhances progression of ovarian carcinoma cells. Aging (Albany NY) 2021; 13:22432-22443. [PMID: 34555810 PMCID: PMC8507305 DOI: 10.18632/aging.203550] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 09/03/2021] [Indexed: 01/25/2023]
Abstract
Background: Ovarian carcinoma (OC) is the deadliest gynecologic malignancy in females worldwide. Circular RNA Foxo3 (Foxo3) plays essential roles in various cancers. However, the detailed function of Foxo3 in OC remains unclear. This study aimed to investigate the role of Foxo3 in OC and the underlying molecular mechanism. Methods: The abundance of Foxo3 was detected in OC cell lines by qPCR. Lentivirus transduction, CCK-8, wound healing assays, transwell migration and invasion assays, luciferase reporter assay, western blotting, fluorescence in situ hybridization (FISH), transmission electron microscopy, nanoparticle tracking analysis, and bioinformatics analysis were performed to investigate the underlying mechanism. Results: The results demonstrated that Foxo3 was significantly upregulated in OC cell lines. Overexpression and knockdown of Foxo3 promoted and inhibited the proliferation, migration, and invasion of OC cells, respectively. Foxo3 could bind to miR-422a to negatively regulate miR-422a expression. Also, proteolipid protein 2 (PLP2) was a targeting gene of miR-422a. Additionally, Foxo3 was highly expressed in exosomes derived from OC cells. Furthermore, Foxo3 could be shuttled to OC cells by exosomes and promoted OC progression. Conclusions: Foxo3 promoted OC progression through exosome-mediated intercellular interaction to target miR-422a/PLP2 axis. Foxo3 may serve as a potential biomarker for OC.
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Affiliation(s)
- Li Wang
- Department of Gynaecology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
| | - Jing Chen
- Department of Gynaecology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
| | - Chunhua Lu
- Department of Urinary Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
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Zhao B, Li Z, Qin C, Li T, Wang Y, Cao H, Yang X, Wang W. Mobius strip in pancreatic cancer: biogenesis, function and clinical significance of circular RNAs. Cell Mol Life Sci 2021; 78:6201-6213. [PMID: 34342664 PMCID: PMC11073466 DOI: 10.1007/s00018-021-03908-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 02/07/2023]
Abstract
Pancreatic cancer (PC) is a kind of common digestive system cancer with the worst prognosis for its insidious symptoms and high invasiveness. Circular RNAs (circRNAs) are endogenous non-coding RNAs with covalently closed circular structure, which are more stable and conservative than linear RNAs and process major functions of microRNA (miRNA) sponge, RNA binding protein (RBP) sponge and polypeptide translation template. Incremental researches have proved that circRNAs express aberrantly and play a vital role in various types of cancer. Hence, we reviewed the biogenesis, degradation, characteristics, and biological functions of circRNAs and summarized the roles circRNAs played in the proliferation, invasion, metastasis, chemoresistance and exosome-mediated intercellular communication of PC. We then summed up a workflow regarding circRNA research in cancer and relative specific databases and experimental methods. In the future, more efforts ought to be put into circRNAs research in PC, including basic research of discovering and testifying circRNAs centered ceRNA networks, and clinical research of exploiting exosomal or circulating circRNAs as a diagnostic biomarker, chemotherapy sensitivity predictor and prognostic predictor.
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Affiliation(s)
- Bangbo Zhao
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Zeru Li
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Cheng Qin
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Tianhao Li
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yuanyang Wang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Hongtao Cao
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiaoying Yang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Weibin Wang
- Department of General Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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Tao M, Zheng M, Xu Y, Ma S, Zhang W, Ju S. CircRNAs and their regulatory roles in cancers. Mol Med 2021; 27:94. [PMID: 34445958 PMCID: PMC8393742 DOI: 10.1186/s10020-021-00359-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 08/18/2021] [Indexed: 01/17/2023] Open
Abstract
Circular RNAs (circRNAs), a novel type of non-coding RNAs (ncRNAs), have a covalently closed circular structure resulting from pre-mRNA back splicing via spliceosome and ribozymes. They can be classified differently in accordance with different criteria. As circRNAs are abundant, conserved, and stable, they can be used as diagnostic markers in various diseases and targets to develop new therapies. There are various functions of circRNAs, including sponge for miR/proteins, role of scaffolds, templates for translation, and regulators of mRNA translation and stability. Without m7G cap and poly-A tail, circRNAs can still be degraded in several ways, including RNase L, Ago-dependent, and Ago-independent degradation. Increasing evidence indicates that circRNAs can be modified by N-6 methylation (m6A) in many aspects such as biogenesis, nuclear export, translation, and degradation. In addition, they have been proved to play a regulatory role in the progression of various cancers. Recently, methods of detecting circRNAs with high sensitivity and specificity have also been reported. This review presents a detailed overview of circRNAs regarding biogenesis, biomarker, functions, degradation, and dynamic modification as well as their regulatory roles in various cancers. It’s particularly summarized in detail in the biogenesis of circRNAs, regulation of circRNAs by m6A modification and mechanisms by which circRNAs affect tumor progression respectively. Moreover, existing circRNA detection methods and their characteristics are also mentioned.
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Affiliation(s)
- Mei Tao
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Ming Zheng
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Yanhua Xu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Shuo Ma
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.,Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, China
| | - Weiwei Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China. .,Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Xisi Road, No.20, Nantong, 226001, Jiangsu, China.
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