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Hua R, Gao H, He C, Xin S, Wang B, Zhang S, Gao L, Tao Q, Wu W, Sun F, Xu J. An emerging view on vascular fibrosis molecular mediators and relevant disorders: from bench to bed. Front Cardiovasc Med 2023; 10:1273502. [PMID: 38179503 PMCID: PMC10764515 DOI: 10.3389/fcvm.2023.1273502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/27/2023] [Indexed: 01/06/2024] Open
Abstract
Vascular fibrosis is a widespread pathologic condition that arises during vascular remodeling in cardiovascular dysfunctions. According to previous studies, vascular fibrosis is characterized by endothelial matrix deposition and vascular wall thickening. The RAAS and TGF-β/Smad signaling pathways have been frequently highlighted. It is, however, far from explicit in terms of understanding the cause and progression of vascular fibrosis. In this review, we collected and categorized a large number of molecules which influence the fibrosing process, in order to acquire a better understanding of vascular fibrosis, particularly of pathologic dysfunction. Furthermore, several mediators that prevent vascular fibrosis are discussed in depth in this review, with the aim that this will contribute to the future prevention and treatment of related conditions.
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Affiliation(s)
- Rongxuan Hua
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Han Gao
- Department of Clinical Laboratory, Aerospace Center Hospital, Peking University, Beijing, China
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chengwei He
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Shuzi Xin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Boya Wang
- State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, Beijing Key Laboratory of Carcinogenesis and Translational Research, Peking University Cancer Hospital & Institute, Beijing, China
| | - Sitian Zhang
- Department of Clinical Medicine, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Lei Gao
- Department of Biomedical Informatics, School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Qiang Tao
- Department of Biomedical Informatics, School of Biomedical Engineering, Capital Medical University, Beijing, China
| | - Wenqi Wu
- Experimental Center for Morphological Research Platform, Capital Medical University, Beijing, China
| | - Fangling Sun
- Department of Experimental Animal Laboratory, Xuan-Wu Hospital of Capital Medical University, Beijing, China
| | - Jingdong Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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Bakinowska E, Kiełbowski K, Pawlik A. The Role of Extracellular Vesicles in the Pathogenesis and Treatment of Rheumatoid Arthritis and Osteoarthritis. Cells 2023; 12:2716. [PMID: 38067147 PMCID: PMC10706487 DOI: 10.3390/cells12232716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/24/2023] [Accepted: 11/25/2023] [Indexed: 12/18/2023] Open
Abstract
Cells can communicate with each other through extracellular vesicles (EVs), which are membrane-bound structures that transport proteins, lipids and nucleic acids. These structures have been found to mediate cellular differentiation and proliferation apoptosis, as well as inflammatory responses and senescence, among others. The cargo of these vesicles may include immunomodulatory molecules, which can then contribute to the pathogenesis of various diseases. By contrast, EVs secreted by mesenchymal stem cells (MSCs) have shown important immunosuppressive and regenerative properties. Moreover, EVs can be modified and used as drug carriers to precisely deliver therapeutic agents. In this review, we aim to summarize the current evidence on the roles of EVs in the progression and treatment of rheumatoid arthritis (RA) and osteoarthritis (OA), which are important and prevalent joint diseases with a significant global burden.
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Affiliation(s)
| | | | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland; (E.B.); (K.K.)
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3
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Genc S, Yagci T, Vageli DP, Dundar R, Doukas PG, Doukas SG, Tolia M, Chatzakis N, Tsatsakis A, Taghizadehghalehjoughi A. Exosomal MicroRNA-223, MicroRNA-146, and MicroRNA-21 Profiles and Biochemical Changes in Laryngeal Cancer. ACS Pharmacol Transl Sci 2023; 6:820-828. [PMID: 37200807 PMCID: PMC10186621 DOI: 10.1021/acsptsci.3c00038] [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: 02/23/2023] [Indexed: 05/20/2023]
Abstract
Laryngeal squamous cell carcinoma (LSCC) is one of the most aggressive cancers, and its early diagnosis is urgent. Exosomes are believed to have diagnostic significance in cancer. However, the role of serum exosomal microRNAs, miR-223, miR-146, and miR-21, and phosphatase and tensin homologue (PTEN) and hemoglobin subunit delta (HBD) mRNAs in LSCC is unclear. Exosomes were isolated from the blood serum of 10 LSCC patients and 10 healthy controls to perform scanning electron microscopy and liquid chromatography quadrupole time-of-flight mass spectrometry analyses to characterize them and to undergo reverse transcription polymerase chain reaction to identify miR-223, miR-146, miR-21, and PTEN and HBD mRNA expression phenotypes. Biochemical parameters, including serum C-reactive protein (CRP) and vitamin B12, were also obtained. Serum exosomes of 10-140 nm were isolated from LSCC and controls. Serum exosomal miR-223, miR-146, and PTEN were found to be significantly decreased (p < 0.05), in contrast to serum exosomal miRNA-21 (p < 0.01), and serum vitamin B12 and CRP (p < 0.05) were found to be significantly increased, in LSCC vs controls. Our novel data show that the combination of reduced serum exosomal miR-223, miR-146, and miR-21 profiles and biochemical alterations in CRP and vitamin B12 levels may be useful indicators of LSCC that could be validated by large studies. Our findings also suggest a possible negative regulatory effect of miR-21 on PTEN in LSCC, encouraging a more extensive investigation of its role.
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Affiliation(s)
- Sidika Genc
- Faculty
of Medicine, Department of Medical Pharmacology, Bilecik Seyh Edebali University, Bilecik 11230, Turkey
| | - Tarik Yagci
- Faculty
of Medicine, Department of ENT, Bilecik
Seyh Edebali University, Bilecik 11230, Turkey
| | - Dimitra P. Vageli
- Yale
Larynx Laboratory, Department of Surgery (Otolaryngology), Yale School of Medicine, New Haven, Connecticut 06510, United States
| | - Riza Dundar
- Faculty
of Medicine, Department of ENT, Bilecik
Seyh Edebali University, Bilecik 11230, Turkey
| | - Panagiotis G. Doukas
- Yale
Larynx Laboratory, Department of Surgery (Otolaryngology), Yale School of Medicine, New Haven, Connecticut 06510, United States
| | - Sotirios G. Doukas
- Department
of Internal Medicine, Division of Gastroenterology and Hepatology, Saint Peter University Hospital, New Brunswick New Jersey 08901-1780, United States
- Department
of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Maria Tolia
- Department
of Radiology, Faculty of Medicine, University
of Crete, 71003 Heraklion, Greece
| | - Nikolaos Chatzakis
- Otorhinolaryngologist
Consultant, ENT Department of University
Hospital of Crete, 71003 Heraklion, Greece
| | - Aristidis Tsatsakis
- Department
of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Ali Taghizadehghalehjoughi
- Faculty
of Medicine, Department of Medical Pharmacology, Bilecik Seyh Edebali University, Bilecik 11230, Turkey
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4
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Exosomal PD-L1 confers chemoresistance and promotes tumorigenic properties in esophageal cancer cells via upregulating STAT3/miR-21. Gene Ther 2023; 30:88-100. [PMID: 35440807 DOI: 10.1038/s41434-022-00331-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/12/2022] [Accepted: 03/02/2022] [Indexed: 11/08/2022]
Abstract
Chemotherapy resistance remains a major obstacle in the treatment of esophageal cancer. Previous researches have shown that an increase in exosomal PD-L1 expression was positively associated with a more advanced clinical stage, a poorer prognosis as well as drug resistance in patients with esophageal squamous cell carcinoma (ESCC). To explore the role of exosomal PD-L1 in ESCC, we performed bioinformatics analysis as well as several in vitro/in vivo functional experiments in a parental sensitive cell line EC-9706 and its derivative, a paclitaxel-resistant subline EC-9706R, and found that the exosomal PD-L1 from EC-9706R was higher than that from EC-9706. Moreover, exosomes from EC-9706R significantly increased invasion, migration and chemoresistance of EC-9706. Anti-PD-L1 treatment in combination with chemotherapy also led to reduced tumor burden in vivo. Inhibition of the release of exosomes by GW4869 or inhibition of STAT3 phosphorylation by stattic could effectively reverse the resistance to paclitaxel mediated by exosomal PD-L1. Furthermore, we found that PD-L1, miR-21, and multidrug resistance (MDR1) gene are involved in the process of exosomal transfer. Moreover, PD-L1 could enhance miR-21 expression by increasing the enrichment of STAT3 on miR-21 promoter. Our results suggested that exosomal PD-L1 may contribute to drug resistance to paclitaxel by regulating the STAT3/miR-21/PTEN/Akt axis and promote tumorigenic phenotype. This study provides a novel potential therapeutic approach to reverse chemoresistance and tumor progression through exosomal PD-L1 in ESCC patients.
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Jain G, Das P, Ranjan P, Neha, Valderrama F, Cieza-Borrella C. Urinary extracellular vesicles miRNA-A new era of prostate cancer biomarkers. Front Genet 2023; 14:1065757. [PMID: 36741322 PMCID: PMC9895092 DOI: 10.3389/fgene.2023.1065757] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/09/2023] [Indexed: 01/21/2023] Open
Abstract
Prostate cancer is the second most common male cancer worldwide showing the highest rates of incidence in Western Europe. Although the measurement of serum prostate-specific antigen levels is the current gold standard in PCa diagnosis, PSA-based screening is not considered a reliable diagnosis and prognosis tool due to its lower sensitivity and poor predictive score which lead to a 22%-43% overdiagnosis, unnecessary biopsies, and over-treatment. These major limitations along with the heterogeneous nature of the disease have made PCa a very unappreciative subject for diagnostics, resulting in poor patient management; thus, it urges to identify and validate new reliable PCa biomarkers that can provide accurate information in regard to disease diagnosis and prognosis. Researchers have explored the analysis of microRNAs (miRNAs), messenger RNAs (mRNAs), small proteins, genomic rearrangements, and gene expression in body fluids and non-solid tissues in search of lesser invasive yet efficient PCa biomarkers. Although the presence of miRNAs in body fluids like blood, urine, and saliva initially sparked great interest among the scientific community; their potential use as liquid biopsy biomarkers in PCa is still at a very nascent stage with respect to other well-established diagnostics and prognosis tools. Up to date, numerous studies have been conducted in search of PCa miRNA-based biomarkers in whole blood or blood serum; however, only a few studies have investigated their presence in urine samples of which less than two tens involve the detection of miRNAs in extracellular vesicles isolated from urine. In addition, there exists some discrepancy around the identification of miRNAs in PCa urine samples due to the diversity of the urine fractions that can be targeted for analysis such as urine circulating cells, cell-free fractions, and exosomes. In this review, we aim to discuss research output from the most recent studies involving the analysis of urinary EVs for the identification of miRNA-based PCa-specific biomarkers.
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Affiliation(s)
- Garima Jain
- Centre for Genetic Disorders, Institute of Science, Banaras Hindu University, Varanasi, India,*Correspondence: Garima Jain, ; Clara Cieza-Borrella,
| | - Parimal Das
- Centre for Genetic Disorders, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Prashant Ranjan
- Centre for Genetic Disorders, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Neha
- Centre for Genetic Disorders, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Ferran Valderrama
- Centre for Biomedical Education, Cell Biology and Genetics Research Centre, St. George’s University of London, London, United Kingdom
| | - Clara Cieza-Borrella
- Centre for Biomedical Education, Cell Biology and Genetics Research Centre, St. George’s University of London, London, United Kingdom,*Correspondence: Garima Jain, ; Clara Cieza-Borrella,
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6
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De Freitas JH, Bragato JP, Rebech GT, Costa SF, Dos Santos MO, Soares MF, Eugênio FDR, Dos Santos PSP, De Lima VMF. MicroRNA-21 and microRNA-148a affects PTEN, NO and ROS in canine leishmaniasis. Front Genet 2023; 14:1106496. [PMID: 37124626 PMCID: PMC10137164 DOI: 10.3389/fgene.2023.1106496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/24/2023] [Indexed: 05/02/2023] Open
Abstract
Canine Visceral leishmaniasis (CanL) poses a severe public health threat in several countries. Disease progression depends on the degree of immune response suppression. MicroRNAs (miRs) modulate mRNA translation into proteins and regulate various cellular functions and pathways associated with immune responses. MiR-21 and miR-148a can alter the parasite load and M1 macrophages are the principal cells in dogs' leishmanicidal activity. A previous study found increased miR-21 and miR-148a in splenic leukocytes (SL) of dogs with CanL using microarray analysis and in silico analysis identified PTEN pathway targets. PTEN is involved in the immune regulation of macrophages. We measured PTEN and the production of reactive oxygen species (ROS) and nitric oxide (NO) before and after transfection SLs of dogs with CanL with mimic and inhibition of miR-21 and miR-148a. PTEN levels increased, NO and ROS decreased in SLs from dogs with CanL. Inhibition of miRNA-21 resulted in PTEN increase; in contrast, PTEN decreased after miR-148a inhibition. Nitrite (NO2) levels increased after transfection with miR-21 inhibitor but were decreased with miR-148a inhibitor. The increase in miR-21 promoted a reduction in ROS and NO levels, but miR-148a inhibition increased NO and reduced ROS. These findings suggest that miR-21 and miR-148a can participate in immune response in CanL, affecting PTEN, NO, and ROS levels.
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Mikhailov VF, Saleeva DV, Shulenina LV, Raeva NF, Rozhdestvensky LM, Zasukhina GD. The Сonnection between the Growth Dynamics of Transplanted Lewis Carcinoma in Mice and Changes in the Activity of Genes and Noncoding RNAs after Low-Dose Irradiation. BIOL BULL+ 2022. [DOI: 10.1134/s1062359022120135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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8
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Chen M, Lei N, Tian W, Li Y, Chang L. Recent advances of non-coding RNAs in ovarian cancer prognosis and therapeutics. Ther Adv Med Oncol 2022; 14:17588359221118010. [PMID: 35983027 PMCID: PMC9379276 DOI: 10.1177/17588359221118010] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 07/15/2022] [Indexed: 01/17/2023] Open
Abstract
Ovarian cancer (OC) is the third most common gynecological malignancy with the highest mortality worldwide. OC is usually diagnosed at an advanced stage, and the standard treatment is surgery combined with platinum or paclitaxel chemotherapy. However, chemoresistance inevitably appears coupled with the easy recurrence and poor prognosis. Thus, early diagnosis, predicting prognosis, and reducing chemoresistance are of great significance for controlling the progression and improving treatment effects of OC. Recently, much insight has been gained into the non-coding RNA (ncRNA) that is employed for RNAs but does not encode a protein, and many types of ncRNAs have been characterized including long-chain non-coding RNAs, microRNAs, and circular RNAs. Accumulating evidence indicates these ncRNAs play very active roles in OC progression and metastasis. In this review, we briefly discuss the ncRNAs as biomarkers for OC prognosis. We focus on the recent advances of ncRNAs as therapeutic targets in preventing OC metastasis, chemoresistance, immune escape, and metabolism. The novel strategies for ncRNAs-targeted therapy are also exploited for improving the survival of OC patients.
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Affiliation(s)
- Mengyu Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Ningjing Lei
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Wanjia Tian
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yong Li
- Cancer Care Centre, St George Hospital, Level 2, Research and Education Centre, 4-10 South Street, Kogarah, NSW 2217, Australia
| | - Lei Chang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, No. 1 East Jianshe Road, Erqi District, Zhengzhou, Henan 450000, China
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Umbilical Cord Mesenchymal Stem Cell-Derived Small Extracellular Vesicles Deliver miR-21 to Promote Corneal Epithelial Wound Healing through PTEN/PI3K/Akt Pathway. Stem Cells Int 2022; 2022:1252557. [PMID: 35873535 PMCID: PMC9303509 DOI: 10.1155/2022/1252557] [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: 12/08/2021] [Revised: 05/19/2022] [Accepted: 06/23/2022] [Indexed: 12/30/2022] Open
Abstract
Objective. Rapid restoration of corneal epithelium integrity after injury is particularly important for preserving corneal transparency and vision. Mesenchymal stem cells (MSCs) can be taken into account as the promising regenerative therapeutics for improvement of wound healing processes based on the variety of the effective components. The extracellular vesicles form MSCs, especially exosomes, have been considered as important paracrine mediators though transferring microRNAs into recipient cell. This study investigated the mechanism of human umbilical cord MSC-derived small extracellular vesicles (HUMSC-sEVs) on corneal epithelial wound healing. Methods. HUMSC-sEVs were identified by transmission electron microscopy, nanoparticle tracking analysis, and Western blot. Corneal fluorescein staining and histological staining were evaluated in a corneal mechanical wound model. Changes in HCEC proliferation after HUMSC-sEVs or miR-21 mimic treatment were evaluated by CCK-8 and EdU assays, while migration was assessed by in vitro scratch wound assay. Full-length transcriptome sequencing was performed to identify the differentially expressed genes associated with HUMSC-sEVs treatment, followed by validation via real-time PCR and Western blot. Results. The sEVs derived from HUMSCs can significantly promote corneal epithelial cell proliferation, migration in vitro, and corneal epithelial wound healing in vivo. Similar effects were obtained after miR-21 transfection, while the beneficial effects of HUMSC-sEVs were partially negated by miR-21 knockdown. Results also show that the benefits are associated with decreased PTEN level and activated the PI3K/Akt signaling pathway in HCECs. Conclusion. HUMSC-sEVs could enhance the recovery of corneal epithelial wounds though restraining PTEN by transferring miR-21 and may represent a promising novel therapeutic agent for corneal wound repair.
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Cheng H, Wang M, Su J, Li Y, Long J, Chu J, Wan X, Cao Y, Li Q. Lipid Metabolism and Cancer. Life (Basel) 2022; 12:life12060784. [PMID: 35743814 PMCID: PMC9224822 DOI: 10.3390/life12060784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Lipid metabolism is involved in the regulation of numerous cellular processes, such as cell growth, proliferation, differentiation, survival, apoptosis, inflammation, movement, membrane homeostasis, chemotherapy response, and drug resistance. Reprogramming of lipid metabolism is a typical feature of malignant tumors. In a variety of cancers, fat uptake, storage and fat production are up-regulated, which in turn promotes the rapid growth, invasion, and migration of tumors. This paper systematically summarizes the key signal transduction pathways and molecules of lipid metabolism regulating tumors, and the role of lipid metabolism in programmed cell death. In conclusion, understanding the potential molecular mechanism of lipid metabolism and the functions of different lipid molecules may facilitate elucidating the mechanisms underlying the occurrence of cancer in order to discover new potential targets for the development of effective antitumor drugs.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Qinglin Li
- Correspondence: ; Tel.: +86-0551-65169051
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11
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Jia E, Ren N, Shi X, Zhang R, Yu H, Yu F, Qin S, Xue J. Extracellular vesicle biomarkers for pancreatic cancer diagnosis: a systematic review and meta-analysis. BMC Cancer 2022; 22:573. [PMID: 35606727 PMCID: PMC9125932 DOI: 10.1186/s12885-022-09463-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 03/28/2022] [Indexed: 02/14/2023] Open
Abstract
BACKGROUND Extracellular vesicle (EV) biomarkers have promising diagnosis and screening capacity for several cancers, but the diagnostic value for pancreatic cancer (PC) is controversial. The aim of our study was to review the diagnostic performance of EV biomarkers for PC. METHODS We performed a systematic review of PubMed, Medline, and Web Of Science databases from inception to 18 Feb 2022. We identified studies reporting the diagnostic performance of EV biomarkers for PC and summarized the information of sensitivity, specificity, area under the curve (AUC), or receiver operator characteristic (ROC) curve) in according to a pre-designed data collection form. Pooled sensitivity and specificity was calculated using a random-effect model. RESULTS We identified 39 studies, including 2037 PC patients and 1632 noncancerous, seven of which were conducted independent validation tests. Seventeen studies emphasized on EV RNAs, sixteen on EV proteins, and sixteen on biomarker panels. MiR-10b, miR-21, and GPC1 were the most frequently reported RNA and protein for PC diagnosis. For individual RNAs and proteins, the pooled sensitivity and specificity were 79% (95% CI: 77-81%) and 87% (95% CI: 85-89%), 72% (95% CI: 69-74%) and 77% (95% CI: 74-80%), respectively. the pooled sensitivity and specificity of EV RNA combined with protein panels were 84% (95% CI: 81-86%) and 89% (95% CI: 86-91%), respectively. Surprisingly, for early stage (stage I and II) PC EV biomarkers showed excellent diagnostic performance with the sensitivity of 90% (95% CI: 87-93%) and the specificity of 94% (95% CI: 92-95%). Both in sensitivity and subgroup analyses, we did not observe notable difference in pooled sensitivity and specificity. Studies might be limited by the isolation and detection techniques of EVs to a certain extent. CONCLUSIONS EV biomarkers showed appealing diagnostic preference for PC, especially for early stage PC. Solving the deficiency of technologies of isolation and detection EVs has important implications for application these novel noninvasive biomarkers in clinical practice.
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Affiliation(s)
- Erna Jia
- Department of Gastroenterology, The Third Hospital of Jilin University, Changchun, China
| | - Na Ren
- Department of Thoracic Surgery, The Third Hospital of Jilin University, No. 126, Xiantai Street, Jilin, Changchun, China
| | - Xianquan Shi
- Department of Ultrasound, Beijing Friendship Hospital of Capital Medical University, Beijing, China
| | - Rongkui Zhang
- Department of Radiology, The First Hospital of Jilin University, Changchun, China
| | - Haixin Yu
- Department of General Surgery, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fan Yu
- Department of Gastroenterology, The Third Hospital of Jilin University, Changchun, China
| | - Shaoyou Qin
- Department of Gastroenterology, The Third Hospital of Jilin University, Changchun, China
| | - Jinru Xue
- Department of Thoracic Surgery, The Third Hospital of Jilin University, No. 126, Xiantai Street, Jilin, Changchun, China.
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12
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Xie J, Wu W, Zheng L, Lin X, Tai Y, Wang Y, Wang L. Roles of MicroRNA-21 in Skin Wound Healing: A Comprehensive Review. Front Pharmacol 2022; 13:828627. [PMID: 35295323 PMCID: PMC8919367 DOI: 10.3389/fphar.2022.828627] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/10/2022] [Indexed: 12/12/2022] Open
Abstract
MicroRNA-21 (miR-21), one of the early mammalian miRNAs identified, has been detected to be upregulated in multiple biological processes. Increasing evidence has demonstrated the potential values of miR-21 in cutaneous damage and skin wound healing, but lack of a review article to summarize the current evidence on this issue. Based on this review, relevant studies demonstrated that miR-21 played an essential role in wound healing by constituting a complex network with its targeted genes (i.e., PTEN, RECK. SPRY1/2, NF-κB, and TIMP3) and the cascaded signaling pathways (i.e., MAPK/ERK, PI3K/Akt, Wnt/β-catenin/MMP-7, and TGF-β/Smad7-Smad2/3). The treatment effectiveness developed by miR-21 might be associated with the promotion of the fibroblast differentiation, the improvement of angiogenesis, anti-inflammatory, enhancement of the collagen synthesis, and the re-epithelialization of the wound. Currently, miRNA nanocarrier systems have been developed, supporting the feasibility clinical feasibility of such miR-21-based therapy. After further investigations, miR-21 may serve as a potential therapeutic target for wound healing.
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Affiliation(s)
- Jie Xie
- Department of Emergency Medicine, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
| | - Weizhou Wu
- Department of Urology, Maoming People's Hospital, Guangdong, China
| | - Liying Zheng
- Postgraduate Pepartment, First Affiliated Hospital of Gannan Medical College, Ganzhou, China
| | - Xuesong Lin
- Department of Burn Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
| | - Yuncheng Tai
- Department of Burn Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
| | - Yajie Wang
- Department of Burn Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
| | - Le Wang
- Department of Burn Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
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13
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Anti-PD-L1 Antibody Enhances T Cell Immune Responses and Reduces Resistance of Breast Cancer Cells to Radiotherapy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5938688. [PMID: 35295718 PMCID: PMC8920704 DOI: 10.1155/2022/5938688] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 12/09/2021] [Accepted: 01/21/2022] [Indexed: 12/12/2022]
Abstract
Immune escape is a frequent occurrence, which limits the duration of antitumor immune responses to radiotherapy. Here, we aimed to ascertain the roles and underlying mechanisms of programmed death ligand 1 (PD-L1) in tolerance of breast cancer (BC) to radiotherapy. We first quantified microRNA-21 (miR-21) and PD-L1 expression in BC tissues and cells, followed by identification of the interactions between miR-21, PD-L1, and programmed cell death protein 4 (PDCD4). miR-21 knock-in mice were used to construct tumor-bearing models, which were then treated with anti-PD-L1 antibody and irradiation, followed by measurement of tumor growth and tumor immune escape. Finally, we evaluated the synergistic effects of radiotherapy and anti-PD-L1 antibody in vivo. The results showed increased miR-21 expression in BC tissues and cells, which was positively correlated with PD-L1 expression. The treatment with radiotherapy or anti-PD-L1 antibody in the miR-21 knock-in mice diminished tumor weight and volume, along with decreased CD3+CD8+ positive cells, serum IL-2 and IFN-γ levels, and lower PD-L1 expression, but augmented apoptosis of T and BC cells. Moreover, miR-21 significantly augmented PD-L1 expression via PI3K/Akt pathway activation by targeting PDCD4 in BC cells. Thus, radiotherapy and anti-PD-L1 antibody synergistically accelerated the therapeutic effect against BC in mice, thereby implicating a close interplay between radiotherapy, T cells, and the miR-21/PDCD4/PI3K/Akt/PD-L1 axis.
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14
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Marques TM, Gama-Carvalho M. Network Approaches to Study Endogenous RNA Competition and Its Impact on Tissue-Specific microRNA Functions. Biomolecules 2022; 12:332. [PMID: 35204832 PMCID: PMC8868585 DOI: 10.3390/biom12020332] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
Abstract
microRNAs are small non-coding RNAs that play a key role in regulating gene expression. These molecules exert their function through sequence complementarity with microRNA responsive elements and are typically located in the 3' untranslated region of mRNAs, negatively regulating expression. Even though the relevant role of miRNA-dependent regulation is broadly recognized, the principles governing their ability to lead to specific functional outcomes in distinct cell types are still not well understood. In recent years, an intriguing hypothesis proposed that miRNA-responsive elements act as communication links between different RNA species, making the investigation of microRNA function even more complex than previously thought. The competing endogenous RNA hypothesis suggests the presence of a new level of regulation, whereby a specific RNA transcript can indirectly influence the abundance of other transcripts by limiting the availability of a common miRNA, acting as a "molecular sponge". Since this idea has been proposed, several studies have tried to pinpoint the interaction networks that have been established between different RNA species and whether they contribute to normal cell function and disease. The focus of this review is to highlight recent developments and achievements made towards the process of characterizing competing endogenous RNA networks and their role in cellular function.
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Affiliation(s)
| | - Margarida Gama-Carvalho
- BioISI—Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal;
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15
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Li J, Gu H. Paeonol suppresses lipid formation and promotes lipid degradation in adipocytes. Exp Ther Med 2021; 23:78. [PMID: 34938364 PMCID: PMC8688932 DOI: 10.3892/etm.2021.11001] [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: 06/04/2021] [Accepted: 07/23/2021] [Indexed: 12/14/2022] Open
Abstract
Paeonol can regulate a variety of physiological and pathological processes such as thrombosis, oxidative stress, inflammation and atherosclerosis. However, its potential role and underlying mechanisms in obesity and lipid metabolism remain to be elucidated. In the present study, 3T3-L1 cells were differentiated and collected on days 4, 6 and 8. The expression levels of fatty-acid-binding protein 4 (FABP4) and microRNA (miR)-21 were detected using reverse transcription-quantitative PCR and western blot analyses. Cell viability was assessed using a Cell Counting Kit-8 assay. A miR-21 mimic was constructed and transfected into 3T3-L1 preadipocytes. Adipocyte differentiation was detected using Oil Red O staining. The proteins CD36, glucose transporter 4, peroxisome proliferator-activated receptor γ (PPAR-γ) and adipocyte protein 2 (Ap2) were detected using western blot analysis. The expression levels of FABP4 and miR-21 were increased in differentiated 3T3-L1 cells. Paeonol exhibited no effects on cell activity, whereas it inhibited the expression levels of miR-21 in the 3T3-L1 differentiated adipocytes. Paeonol suppressed the differentiation of 3T3-L1 adipocytes and its effect was partially reversed by the overexpression of miR-21. In addition, paeonol promoted the lipid degradation of 3T3-L1 adipocytes, increased the expression levels of PPAR-γ and Ap2, and suppressed triglyceride synthesis in these cells. These effects were partially reversed by the overexpression of miR-21. In conclusion, the findings of the present study indicated that paeonol may exert protective effects against lipid formation and promote lipid degradation in adipocytes. These data provide evidence of the regulatory effect of paeonol on adipocyte differentiation and highlight its pathological significance.
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Affiliation(s)
- Ji Li
- Department of Pediatrics, Guang'anmen Hospital, Chinese Academy of Traditional Chinese Medicine, Beijing 100053, P.R. China
| | - Huan Gu
- Department of Cardiology of Integrated Traditional Chinese and Western Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
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16
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MiR-1246 regulates the PI3K/AKT signaling pathway by targeting PIK3AP1 and inhibits thyroid cancer cell proliferation and tumor growth. Mol Cell Biochem 2021; 477:649-661. [PMID: 34870753 PMCID: PMC8857084 DOI: 10.1007/s11010-021-04290-3] [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: 04/22/2021] [Accepted: 11/04/2021] [Indexed: 02/07/2023]
Abstract
One of the most prevalent forms of endocrine malignancies is thyroid cancer. Herein, we explored the mechanisms whereby miR-1246 is involved in thyroid cancer. Phosphoinositide 3-kinase adapter protein 1 (PIK3AP1) was identified as a potential miR-1246 target, with the online Gene Expression Omnibus (GEO) database. The binding between miR-1246 and PIK3AP1 and the dynamic role of these two molecules in downstream PI3K/AKT signaling were evaluated. Analysis of GEO data demonstrated significant miR-1246 downregulation in thyroid cancer, and we confirmed that overexpression of miR-1246 can inhibit migratory, invasive, and proliferative activity in vitro and tumor growth in vivo. Subsequent studies indicated that miR-1246 overexpression decreased the protein level of PIK3AP1 and the phosphorylation of PI3K and AKT, which were reversed by PIK3AP1 overexpression. At the same time, overexpression of PIK3AP1 also reversed the miR-1246 mimics-induced inhibition proliferative, migratory, and invasive activity, while promoting increases in apoptotic death, confirming that miR-1246 function was negatively correlated with that of PIK3AP1. Subsequently, we found that the miR-1246 mimics-induced inhibition of PI3K/AKT phosphorylation was reversed by the PI3K/AKT activator IGF-1. miR-1246 mimics inhibited proliferative, migratory, and invasive activity while promoting increases in apoptotic death, which were reversed by IGF-1. Furthermore, miR-1246 agomir can inhibit tumor growth in vivo. We confirmed that miR-1246 affects the signaling pathway of PI3K/AKT via targeting PIK3AP1 and inhibits the development of thyroid cancer. Thus, miR-1246 is a new therapeutic target for thyroid cancer.
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17
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Xu Z, Jin H, Duan X, Liu H, Zhao X, Fan S, Wang Y, Yao T. LncRNA PSMA3-AS1 promotes cell proliferation, migration, and invasion in ovarian cancer by activating the PI3K/Akt pathway via the miR-378a-3p/GALNT3 axis. ENVIRONMENTAL TOXICOLOGY 2021; 36:2562-2577. [PMID: 34520102 DOI: 10.1002/tox.23370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/10/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
The crucial roles of the long noncoding RNAs (lncRNAs) in the development of ovarian cancer (OC) have been extensively studied. According to the prediction result from the Kaplan-Meier Plotter database, high expression of lncRNA proteasome subunit α type-3 antisense RNA1 (PSMA3-AS1) is associated with the poor prognosis in patients with OC. Thus, the study aimed to investigate the role of lncRNA PSMA3-AS1 in OC. Reverse transcription quantitative polymerase chain reaction analysis revealed that PSMA3-AS1 expression was significantly upregulated in OC cells and tissues. PSMA3-AS1 silencing inhibited OC cell proliferation, migration, and invasion, as shown by results of cell counting kit-8, colony formation, wound healing, and Transwell assays, respectively. Additionally, PSMA3-AS1 deficiency suppressed tumor growth in vivo. Mechanistically, luciferase reporter and RNA pulldown assays implied that PSMA3-AS1 served as a competing endogenous RNA for miR-378a-3p to upregulate the expression of polypeptide N-acetylgalactosaminyltransferase 3 (GALNT3). GALNT3 was a target gene of miR-378a-3p in OC. Moreover, PSMA3-AS1 activated the PI3K/Akt pathway by upregulating GALNT3 expression. Overall, PSMA3-AS1 promotes OC cell proliferation, migration, invasion, and xenograft tumor growth by activating the PI3K/Akt pathway via the miR-378a-3p/GALNT3 axis.
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Affiliation(s)
- Zhihong Xu
- Department of Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hui Jin
- Department of Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiaoyang Duan
- Department of Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hong Liu
- Department of Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiwa Zhao
- Department of Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Shaoshuang Fan
- Department of Oncology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yan Wang
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Tiezhu Yao
- Department of Cardiology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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18
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Wang J, Liu L. MiR-149-3p promotes the cisplatin resistance and EMT in ovarian cancer through downregulating TIMP2 and CDKN1A. J Ovarian Res 2021; 14:165. [PMID: 34798882 PMCID: PMC8605569 DOI: 10.1186/s13048-021-00919-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/05/2021] [Indexed: 01/20/2023] Open
Abstract
Background Ovarian cancer (OC), a kind of gynecological cancer, is characterized by high mortality rate, with microRNAs (miRNAs) playing essential roles in it. However, the clinical significance of miRNAs and their molecular mechanisms in OC are mostly unknown. Methods miR-149-3p expression was predicted through Gene Expression Omnibus (GEO) data in OC and confirmed by q-PCR in various OC cells and tissues from patients with different clinical characteristics. Moreover, its roles in terms of proliferation, migration and invasion were measured by CCK-8, colony formation, wound healing and transwell assays in OC cells including cisplatin-resistant and cisplatin-sensitive cells. And its effect on epithelial-mesenchymal transition was also assessed through detecting related protein expression. Additionally, its potential targets were verified by dual luciferase assay and Ago-RIP assay. Finally, its oncogenic functions were explored in vivo. Results In data from GSE79943, GSE131790, and TCGA, miR-149-3p was found to be highly expressed in OC tissues and associated with poor survival. In metastasis and chemoresistant tissues and cisplatin-resistant OC cells, its high expression was confirmed. In terms of tumorigenic effects, miR-149-3p knockdown in cisplatin-resistant OC cells inhibited its cisplatin resistance and other malignant phenotypes, while miR-149-3p overexpression in cisplatin-resistant OC cells led to contrary results. Mechanistically, miR-149-3p targeted 3’UTR of CDKN1A and TIMP2 to function as an oncogenic miRNA. Conclusion In brief, miR-149-3p promoted cisplatin resistance and EMT in OC by downregulating CDKN1A and TIMP2, which might provide a potential therapeutic target for OC treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s13048-021-00919-5.
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Affiliation(s)
- Jin Wang
- Department of Gynecology, Banan People's Hospital of Chongqing, No. 659, Yunan Avenue, Banan District, Chongqing, 401320, China
| | - Lingxia Liu
- Department of Gynecology, Banan People's Hospital of Chongqing, No. 659, Yunan Avenue, Banan District, Chongqing, 401320, China.
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19
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Nguyen TT, Ung TT, Li S, Sah DK, Park SY, Lian S, Jung YD. Lithocholic Acid Induces miR21, Promoting PTEN Inhibition via STAT3 and ERK-1/2 Signaling in Colorectal Cancer Cells. Int J Mol Sci 2021; 22:ijms221910209. [PMID: 34638550 PMCID: PMC8508661 DOI: 10.3390/ijms221910209] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/19/2022] Open
Abstract
Micro-RNA-21 (miR-21) is a vital regulator of colorectal cancer (CRC) progression and has emerged as a potential therapeutic target in CRC treatment. Our study using real-time PCR assay found that a secondary bile acid, lithocholic acid (LCA), stimulated the expression of miR21 in the CRC cell lines. Promoter activity assay showed that LCA strongly stimulated miR21 promoter activity in HCT116 cells in a time- and dose-dependent manner. Studies of chemical inhibitors and miR21 promoter mutants indicated that Erk1/2 signaling, AP-1 transcription factor, and STAT3 are major signals involved in the mechanism of LCA-induced miR21 in HCT116 cells. The elevation of miR21 expression was upstream of the phosphatase and tensin homolog (PTEN) inhibition, and CRC cell proliferation enhancement that was shown to be possibly mediated by PI3K/AKT signaling activation. This study is the first to report that LCA affects miR21 expression in CRC cells, providing us with a better understanding of the cancer-promoting mechanism of bile acids that have been described as the very first promoters of CRC progression.
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Affiliation(s)
- Thinh-Thi Nguyen
- Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Korea; (T.-T.N.); (T.-T.U.); (S.L.); (D.K.S.); (S.-Y.P.)
- Nanogen Pharmaceutical Biotechnology Joint Stock Company, Ho Chi Minh City 71207, Vietnam
| | - Thuan-Trong Ung
- Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Korea; (T.-T.N.); (T.-T.U.); (S.L.); (D.K.S.); (S.-Y.P.)
- Nanogen Pharmaceutical Biotechnology Joint Stock Company, Ho Chi Minh City 71207, Vietnam
| | - Shinan Li
- Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Korea; (T.-T.N.); (T.-T.U.); (S.L.); (D.K.S.); (S.-Y.P.)
| | - Dhiraj Kumar Sah
- Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Korea; (T.-T.N.); (T.-T.U.); (S.L.); (D.K.S.); (S.-Y.P.)
| | - Sun-Young Park
- Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Korea; (T.-T.N.); (T.-T.U.); (S.L.); (D.K.S.); (S.-Y.P.)
| | - Sen Lian
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Correspondence: (S.L.); (Y.-D.J.); Tel.: +86-20-6278-9385 (S.L.); +82-61-379-2772 (Y.-D.J.); Fax: +86-20-6278-9385 (S.L.); +82-81-379-2781 (Y.-D.J.)
| | - Young-Do Jung
- Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-190, Korea; (T.-T.N.); (T.-T.U.); (S.L.); (D.K.S.); (S.-Y.P.)
- Correspondence: (S.L.); (Y.-D.J.); Tel.: +86-20-6278-9385 (S.L.); +82-61-379-2772 (Y.-D.J.); Fax: +86-20-6278-9385 (S.L.); +82-81-379-2781 (Y.-D.J.)
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20
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Borum RM, Moore C, Chan SK, Steinmetz NF, Jokerst JV. A Photoacoustic Contrast Agent for miR-21 via NIR Fluorescent Hybridization Chain Reaction. Bioconjug Chem 2021; 33:1080-1092. [PMID: 34406744 DOI: 10.1021/acs.bioconjchem.1c00375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Nucleic acids are well-established biomarkers of cancer with immense value in diagnostics and basic research. However, strategies to monitor these species in tissue can be challenging due to the need for amplification of imaging signal from low analyte concentrations with high specificity. Photoacoustic (PA) imaging is gaining traction for molecular imaging of proteins, small biomolecules, and nucleic acids by coupling pulsed near-infrared (NIR) excitation with broadband acoustic detection. This work introduces a PA nucleic acid contrast agent that harnesses NIR fluorophore and quencher-tagged hybridization chain reaction (HCR) for signal amplification. This HCR probe was designed to enable contact quenching between NIR dye-quencher pairs by coercing their direct alignment when miR-21, a microRNA cancer biomarker, is detected. The probe demonstrated a ratiometric PA limit of detection of 148 pM miR-21, sequence specificity against one- and two-base mutations, and selectivity over other microRNAs. It was further tested in live human ovarian cancer (SKOV3) and noncancerous (HEK 293T) cells to exemplify in situ PA activation based on differences in endogenous miR-21 regulation (p = 0.0002). The probe was lastly tested in tissue mimicking phantoms to exemplify sustained contrast in centimeter-range depths and 85.3% photostability after 15 min of laser irradiation. The probe's miR-21-specific activation and its ability to maintain contrast in biologically relevant absorbing and scattering media support its consideration for live-cell PA microscopy and potential cancer diagnostics. Results from this probe also underscore the combined detection power between ratiometric PA signaling and strand amplification for more sensitive DNA-based PA sensors.
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Affiliation(s)
- Raina M Borum
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093. United States
| | - Colman Moore
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093. United States
| | - Soo Khim Chan
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093. United States
| | - Nicole F Steinmetz
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093. United States.,Department of Radiology, University of California, San Diego, La Jolla, California 92093. United States.,Department of Bioengineering, University of California, San Diego, La Jolla, California 92093. United States.,Center for Nano-ImmunoEngineering, University of California, San Diego, La Jolla, California 92093. United States.,Institute for Materials Discovery and Design, University of California, San Diego, La Jolla, California 92093. United States.,Moores Cancer Center, University of California, San Diego, La Jolla, California 92037. United States
| | - Jesse V Jokerst
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093. United States.,Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093. United States.,Department of Radiology, University of California, San Diego, La Jolla, California 92093. United States
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21
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Huang Q, Chen L, Bai Q, Tong T, Zhou Y, Li Z, Lu C, Chen S, Chen L. The roles of microRNAs played in lung diseases via regulating cell apoptosis. Mol Cell Biochem 2021; 476:4265-4275. [PMID: 34398353 DOI: 10.1007/s11010-021-04242-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 08/10/2021] [Indexed: 01/24/2023]
Abstract
MicroRNAs (miRNAs) are a type of endogenous non-coding short-chain RNA, which plays a crucial role in the regulation of many essential cellular functions, including cellular migration, proliferation, invasion, autophagy, oxidative stress, apoptosis, and differentiation. The lung can be damaged by pathogenic microorganisms, as well as physical or chemical factors. Research has confirmed that miRNAs and lung cell apoptosis can affect the development and progression of several lung diseases. This article reviews the role of miRNAs in the development of lung disease through regulating host cell apoptosis.
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Affiliation(s)
- Qiaoling Huang
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, College of Public Health, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - Li Chen
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, College of Public Health, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - Qinqin Bai
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, College of Public Health, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - Ting Tong
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, College of Public Health, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - You Zhou
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, College of Public Health, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - Zhongyu Li
- Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - Chunxue Lu
- Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China
| | - Shenghua Chen
- Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.
| | - Lili Chen
- Department of Public Health Laboratory Sciences, College of Public Health, Hengyang Medical School, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China. .,Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, College of Public Health, University of South China, 28 West Changsheng Rd, Hengyang, 421001, Hunan, China.
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22
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Sun T, Duan L, Li J, Guo H, Xiong M. Gypenoside XVII protects against spinal cord injury in mice by regulating the microRNA‑21‑mediated PTEN/AKT/mTOR pathway. Int J Mol Med 2021; 48:146. [PMID: 34132355 PMCID: PMC8208621 DOI: 10.3892/ijmm.2021.4979] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/01/2021] [Indexed: 12/14/2022] Open
Abstract
Gypenoside XVII (GP‑17), one of the dominant active components of Gynostemma pentaphyllum, has been studied extensively and found to have a variety of pharmacological effects, including neuroprotective properties. However, the neuroprotective effects of GP‑17 against spinal cord injury (SCI), as well as its underlying mechanisms of action remain unknown. The present study aimed to investigate the effects of GP‑17 on motor recovery and histopathological changes following SCI and to elucidate the mechanisms underlying its neuroprotective effects in a mouse model of SCI. Motor recovery was evaluated using the Basso, Beattie and Bresnahan (BBB) locomotor rating scale. Spinal cord edema was detected by the wet/dry weight method. H&E staining was performed to examine the effect of GP‑17 on spinal cord damage. Inflammatory response production was assessed by ELISA. Candidate miRNAs were identified following the integrated analysis of the Gene Expression Omnibus (GEO) dataset GSE67515. Western blot analysis was also performed to detect the expression levels of associated proteins. The results revealed that GP‑17 treatment improved functional recovery, and suppressed neuronal apoptosis and the inflammatory response in the mouse model of SCI. Moreover, it was observed that miR‑21 expression was downregulated following SCI, whereas it was upregulated following the administration of GP‑17. The inhibition of miR‑21 eliminated the protective effects of GP‑17 on SCI‑induced neuronal apoptosis and the inflammatory response. In addition, phosphatase and tensin homologue (PTEN), a key molecule in the activation of the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway, was identified as a target of miR‑21, and PTEN expression was downregulated by GP‑17 through miR‑21. Furthermore, the PTEN/AKT/mTOR pathway was inactivated by SCI, whereas it was re‑activated by GP‑17 through the regulation of miR‑21 in mice with SCI. On the whole, the findings of the present study suggest that GP‑17 plays a protective role in SCI via regulating the miR‑21/PTEN/AKT/mTOR pathway.
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Affiliation(s)
- Tianyu Sun
- Department of Traumatology, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Liying Duan
- Department of Basic Medicine, Puyang Medical College, Puyang, Henan 457000, P.R. China
| | - Jiaju Li
- Department of Traumatology, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Hongyu Guo
- Department of Traumatology, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
| | - Mingyue Xiong
- Department of Traumatology, The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, P.R. China
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23
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Clinical Significance of Color Ultrasound, MRI, miR-21, and CA199 in the Diagnosis of Pancreatic Cancer. JOURNAL OF ONCOLOGY 2021; 2021:2380958. [PMID: 34367281 PMCID: PMC8337107 DOI: 10.1155/2021/2380958] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022]
Abstract
Background To investigate the clinical significance of color ultrasound, magnetic resonance imaging (MRI), miR-21, and CA199 in the diagnosis of pancreatic cancer (PC). Methods A total of 160 patients with PC admitted to our hospital from April 2018 to February 2021 were included in the PC group, and another 100 patients with benign pancreatic disease during the same period were included in the pancreatic benign disease group. Color ultrasound and MRI were used for imaging examination of the two groups of PC patients, and the sensitivity, accuracy, and specificity of the two methods for preoperative diagnosis of PC were calculated, respectively. A total of 100 healthy people who underwent physical examination during the same period were included in the control group. Serum CA199 levels of the three groups were detected by ELISA assay. The level of serum miR-21 in the three groups was detected by qRT-PCR. A receiver operating curve (ROC) was drawn to analyze and calculate the sensitivity, specificity, and accuracy of the two serum markers and the combination of color ultrasound and MRI in the detection of PC. Results Serum CA199 and miR-21 levels in the PC group were significantly higher than those in the benign lesion group and control group. CA199 and miR-21 levels in the benign lesion group were higher than those in the control group. Both color ultrasound and MRI showed a higher detection rate for PC, and the sensitivity and accuracy were significantly higher than those of CA199 and miR-21. The sensitivity, specificity, and accuracy of combined detection were 91.88%, 96.00%, and 93.46%, respectively, which were significantly higher than those of single detection. Conclusion The combined detection of color ultrasound, MRI, miR-21, and CA199 have a high application value in the early diagnosis of PC, which can effectively improve the sensitivity and accuracy of clinical diagnosis, reduce the probability of missed diagnosis and misdiagnosis, and provide a reference for the rational clinical treatment plan and prognosis.
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24
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Ma Y, Zheng W. H3K27ac-induced lncRNA PAXIP1-AS1 promotes cell proliferation, migration, EMT and apoptosis in ovarian cancer by targeting miR-6744-5p/PCBP2 axis. J Ovarian Res 2021; 14:76. [PMID: 34108034 PMCID: PMC8191132 DOI: 10.1186/s13048-021-00822-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 05/07/2021] [Indexed: 02/02/2023] Open
Abstract
We aimed to explore role of lncRNA PAX-interacting protein 1-antisense RNA1 (PAXIP1-AS1) in ovarian cancer (OC). RT-qPCR analysis identified upregulation of PAXIP1-AS1 in OC cell lines. Functionally, PAXIP1-AS1 knockdown inhibited cell proliferation, accelerated cell apoptosis, and suppressed cell migration and epithelial-mesenchymal transition (EMT) process. Upregulation of PAXIP1-AS1 was induced by CBP-mediated H3K27 acetylation (H3K27ac) via bioinformatic analysis and ChIP assay. Furthermore, PAXIP1-AS1 served as a competing endogenous RNA (ceRNA) to regulate PCBP2 expression by sponging microRNA-6744-5p (miR-6744-5p). Restoration experiments showed that overexpressed PCBP2 rescued effects of silenced PAXIP1-AS1 on cell proliferation, apoptosis, migration and EMT. Overall, lncRNA PAXIP1-AS1 activated by H3K27ac functioned as a tumor promoter in OC via mediating miR-6744-5p/PCBP2 axis, which provided promising insight into exploration on OC therapy.
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Affiliation(s)
- Yimin Ma
- Department of Gynecology, Ningbo Medical Center Lihuili Hospital, Ningbo, 315040, Zhejiang, China.
| | - Wei Zheng
- Department of Gynecology, Xi'an Military Industry Hospital, Xi'an, 710065, Shaanxi, China
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Zou HB, Sun XF. The mechanism of curcumin post-treatment relieving lung injuries by regulating miR-21/TLR4/NF-κB signalling pathway. J Int Med Res 2021; 48:300060520965809. [PMID: 33238792 PMCID: PMC7705296 DOI: 10.1177/0300060520965809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objective To investigate the mechanism by which curcumin prevents lung injury in a rat
model of limb ischaemia-reperfusion injury. Methods Rats were randomized into four groups (n = 20): control
group (sham group); ischaemia-reperfusion group (I/R group); curcumin group
(I/R+Cur group); and inhibitor of agomir-21 group (I/R+Cur+antagomir-21
group). At 3 h after reperfusion, lung tissues were collected for
histopathology and immunohistochemistry to determine the apoptosis index
(AI). Lung injury score (LIS) and lung wet/dry (W/D) ratio were determined.
Lung microRNA-21 (miR-21) mRNA levels were measured using reverse
transcription–polymerase chain reaction. Toll-like receptor 4 (TLR4) and
nuclear factor kappa-B p65 (NF-κB p65) protein levels were measured by
Western blot analysis. Tumour necrosis factor (TNF)-α and interleukin
(IL)-1β levels were determined by enzyme-linked immunosorbent assays. Results In the I/R group, the W/D, LIS, AI, miR-21 mRNA, TLR4, NF-κB p65, TNF-α and
IL-1β were significantly increased and the PaO2 was decreased
compared with the sham group. Evidence of lung injury was observed in the
I/R group and this was alleviated in the I/R+Cur group. An inhibitor of
miR-21 (antagomir-21) reversed the protective effects of curcumin. Conclusion Curcumin post-treatment can alleviate the lung injuries induced by limb
ischaemia-reperfusion via downregulating the levels of miR-21 mRNA.
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Affiliation(s)
- Hai-Bo Zou
- Department of Anaesthesiology, Affiliated Central Hospital, Shenyang Medical College, Shenyang, Liaoning Province, China
| | - Xiao-Feng Sun
- Department of Anaesthesiology, Affiliated Central Hospital, Shenyang Medical College, Shenyang, Liaoning Province, China
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Liang D, Wen Z, Han W, Li W, Pan L, Zhang R. Curcumin protects against inflammation and lung injury in rats with acute pulmonary embolism with the involvement of microRNA-21/PTEN/NF-κB axis. Mol Cell Biochem 2021; 476:2823-2835. [PMID: 33730297 DOI: 10.1007/s11010-021-04127-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 03/04/2021] [Indexed: 02/08/2023]
Abstract
This study was intended to investigate the effect of Curcumin on acute pulmonary embolism (APE) via microRNA-21 (miR-21)/PTEN/NF-κB axis. APE model was induced on rats and administrated with Curcumin. Western blot analysis and RT-qPCR manifested the downregulation of Sp1, miR-21 and NF-κB, but the upregulation of PTEN in Curcumin-treated APE rats. Blood gas analysis, ELISA, and weighing of wet weight/dry weight (W/D) ratio indicated that Curcumin diminished mPAP and RVSP levels, W/D ratio, thrombus volume, and inflammatory factors in the lungs of APE rats. Further mechanical analysis was conducted by dual-luciferase reporter assays and ChIP assay, which showed that Sp1 increased miR-21 expression by binding to the miR-21 promoter, and that PTEN was targeted by miR-21. The APE rats were injected with adenovirus to evaluate the effect of Sp1, miR-21, or PTEN on lung injury and inflammation. It was observed that downregulation of miR-21 or Sp1, or upregulation of PTEN diminished mPAP and RVSP levels, W/D ratio, thrombus volume, and inflammatory factors in the lungs of APE rats. In summary, Curcumin decreased miR-21 expression by downregulating Sp1 to upregulate PTEN and to impair the NF-κB signaling pathway, thus suppressing lung injury and inflammation in APE rats.
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Affiliation(s)
- Dean Liang
- Department of Vascular Surgery, Luoyang Central Hospital Affiliated To Zhengzhou University, Luoyang, 471009, Henan, People's Republic of China
| | - Zhiguo Wen
- Department of Vascular Surgery, Luoyang Central Hospital Affiliated To Zhengzhou University, Luoyang, 471009, Henan, People's Republic of China
| | - Wanli Han
- Department of Vascular Surgery, Luoyang Central Hospital Affiliated To Zhengzhou University, Luoyang, 471009, Henan, People's Republic of China
| | - Wenming Li
- Department of Vascular Surgery, Luoyang Central Hospital Affiliated To Zhengzhou University, Luoyang, 471009, Henan, People's Republic of China
| | - Longfei Pan
- Department of Emergency Medicine, Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, People's Republic of China
| | - Ruipeng Zhang
- Department of Vascular Surgery, Shaanxi Provincial People's Hospital, No. 256, Youyi West Road, Beilin District, Xi'an, 710068, Shaanxi, People's Republic of China.
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Protection against Glucolipotoxicity by High Density Lipoprotein in Human PANC-1 Hybrid 1.1B4 Pancreatic Beta Cells: The Role of microRNA. BIOLOGY 2021; 10:biology10030218. [PMID: 33805674 PMCID: PMC8000094 DOI: 10.3390/biology10030218] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 03/11/2021] [Indexed: 02/06/2023]
Abstract
High-density lipoproteins provide protection against the damaging effects of glucolipotoxicity in beta cells, a factor which sustains insulin secretion and staves off onset of type 2 diabetes mellitus. This study examines epigenetic changes in small non-coding microRNA sequences induced by high density lipoproteins in a human hybrid beta cell model, and tests the impact of delivery of a single sequence in protecting against glucolipotoxicity. Human PANC-1.1B4 cells were used to establish Bmax and Kd for [3H]cholesterol efflux to high density lipoprotein, and minimum concentrations required to protect cell viability and reduce apoptosis to 30mM glucose and 0.25 mM palmitic acid. Microchip array identified the microRNA signature associated with high density lipoprotein treatment, and one sequence, hsa-miR-21-5p, modulated via delivery of a mimic and inhibitor. The results confirm that low concentrations of high-density lipoprotein can protect against glucolipotoxicity, and report the global microRNA profile associated with this lipoprotein; delivery of miR-21-5p mimic altered gene targets, similar to high density lipoprotein, but could not provide sufficient protection against glucolipotoxicity. We conclude that the complex profile of microRNA changes due to HDL treatment may be difficult to replicate using a single microRNA, findings which may inform current drug strategies focused on this approach.
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Gaia-Oltean AI, Braicu C, Gulei D, Ciortea R, Mihu D, Roman H, Irimie A, Berindan-Neagoe I. Ovarian endometriosis, a precursor of ovarian cancer: Histological aspects, gene expression and microRNA alterations (Review). Exp Ther Med 2021; 21:243. [PMID: 33603851 PMCID: PMC7851621 DOI: 10.3892/etm.2021.9674] [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: 03/07/2020] [Accepted: 12/17/2020] [Indexed: 12/24/2022] Open
Abstract
Ovarian endometriosis is a frequent chronic gynecological disease with an uncertain evolution regarding its progression or association with ovarian malignant lesions. The present review summarized the histological aspects, gene expression and microRNA (miRNA/miR) alterations associated with ovarian endometriosis and cancer and their possible interaction. The endometriosis-ovarian cancer interaction has been proposed by certain researchers as a single entity. Histological results indicated that endometriosis has been in different circumstances coexisting with ovarian cancer, with reference to endometrioid and clear cell carcinoma. Endometriosis with moderate and severe atypia can influence cell proliferation and architecture, resulting in a possible malignant transformation. Gene expression analysis indicated that the pathologies of both endometriosis and ovarian cancer are characterized by genetic instability from a molecular point of view, as several important genetic mutations, including ARID1A, PI3KCA, PTEN, BRCA1, BRCA2, TP53 and KRAS genes, were identified. miRNA alterations have been implicated in the regulation of gene expression. Common dysregulated miRNAs, such as miR-331, miR-335, miR-891, miR-548, miR-124, miR-148, miR-215, miR-192, miR-337, miR-153, miR-155, miR-144, miR-221 and miR-3688 were extensively investigated in understanding endometriosis and ovarian cancer evolution. From a combined viewpoint including histological aspects, gene expression and miRNA alterations, it is reasonable to speculate that endometriosis is associated with ovarian cancer. Ovarian endometriosis lesions may present a risk for ovarian malignant lesions, which supports a model of endometriosis as a malignant precursor. However, the endometriosis-ovarian cancer association is not widely accepted in the literature and additional studies are required to validate this association.
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Affiliation(s)
- Adriana Ioana Gaia-Oltean
- Department of Oncological Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania
| | - Diana Gulei
- MedFuture-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania
| | - Razvan Ciortea
- Second Department of Obstetrics and Gynecology, Iuliu Hatieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania
| | - Dan Mihu
- Second Department of Obstetrics and Gynecology, Iuliu Hatieganu University of Medicine and Pharmacy, 400124 Cluj-Napoca, Romania
| | - Horace Roman
- Center of Endometriosis, Clinique Tivoli-Ducos, 33000 Bordeaux, France
| | - Alexandru Irimie
- Department of Oncological Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania.,Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania.,MedFuture-Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 40015 Cluj-Napoca, Romania.,Department of Functional Genomics and Experimental Pathology, Oncology Institute 'Prof. Dr. Ion Chiricuta', 400015 Cluj-Napoca, Romania
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Double-Targeted Knockdown of miR-21 and CXCR4 Inhibits Malignant Glioma Progression by Suppression of the PI3K/AKT and Raf/MEK/ERK Pathways. BIOMED RESEARCH INTERNATIONAL 2020; 2020:7930160. [PMID: 33123586 PMCID: PMC7584940 DOI: 10.1155/2020/7930160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/25/2020] [Accepted: 09/17/2020] [Indexed: 12/22/2022]
Abstract
Currently, miR-21 and CXCR4 are being extensively investigated as two key regulators in glioma malignancy. In this study, we investigated the combined effects of these two factors on glioma progression. Herein, the expression of miR-21 and CXCR4 was increased in tumor tissues and cell lines. Inhibition of miR-21, CXCR4, and miR-21 and CXCR4 together all reduced the migration, invasiveness, proliferation, and enhanced apoptosis in glioma cells, as well as reduced tumor volume and mass in xenograft model. The inhibition effect was strongest in double-targeted knockdown of miR-21 and CXCR4 group, whose downstream pathways involved in AKT axis and ERK axis activation. In conclusion, our findings reported that double-targeted knockdown of miR-21 and CXCR4 could more effectively inhibit the proliferation, migration, invasion, and growth of transplanted tumor and promote cell apoptosis, which were involved in the PI3K/AKT and Raf/MEK/ERK signaling pathways.
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30
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Zhou JS, Yang ZS, Cheng SY, Yu JH, Huang CJ, Feng Q. miRNA-425-5p enhances lung cancer growth via the PTEN/PI3K/AKT signaling axis. BMC Pulm Med 2020; 20:223. [PMID: 32838785 PMCID: PMC7447575 DOI: 10.1186/s12890-020-01261-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 08/10/2020] [Indexed: 02/07/2023] Open
Abstract
Background miRNAs regulate a multitude of cellular processes and their aberrant regulation is linked to human cancer. However, the role of miR-425-5p in lung cancer (LCa) is still largely unclear. Here, we explored the role of miR-425-5p during LCa tumorigenesis. Methods Cell proliferation was evaluated by cell counting Kit-8 and colony formation assay. Western blot and real-time PCR were accordingly used to detect the relevant proteins, miRNA and gene expression. Luciferase reporter assays were used to illustrate the interaction between miR-425-5p and PTEN. Results We demonstrate that miR-425-5p is overexpressed in LCa tissue and enhances the proliferative and colony formation capacity of the LCa cell lines A549 and NCI-H1299. Through predictive binding assays, PTEN was identified as a direct gene target and its exogenous expression inhibited the pro-cancer effects of miR-425-5p. Through its ability to down-regulate PTEN, miR-425-5p activated the PI3K/AKT axis. Conclusion We conclude that miR-425-5p promotes LCa tumorigenesis through PTEN/PI3K/AKT signaling.
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Affiliation(s)
- Jin-Shan Zhou
- Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangchen Road NO.1 of Yiwu, Zhejiang, 322000, China
| | - Ze-Shan Yang
- Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangchen Road NO.1 of Yiwu, Zhejiang, 322000, China
| | - Si-Yang Cheng
- Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangchen Road NO.1 of Yiwu, Zhejiang, 322000, China
| | - Jiang-Hao Yu
- Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangchen Road NO.1 of Yiwu, Zhejiang, 322000, China
| | - Chao-Jun Huang
- Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangchen Road NO.1 of Yiwu, Zhejiang, 322000, China
| | - Qiang Feng
- Cardiothoracic Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Shangchen Road NO.1 of Yiwu, Zhejiang, 322000, China.
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Circular RNA-9119 suppresses in ovarian cancer cell viability via targeting the microRNA-21-5p-PTEN-Akt pathway. Aging (Albany NY) 2020; 12:14314-14328. [PMID: 32675386 PMCID: PMC7425477 DOI: 10.18632/aging.103470] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/27/2020] [Indexed: 12/24/2022]
Abstract
We aimed to assess the regulatory role of circular RNA (circRNA)-9119 (circ9119) in ovarian cancer (OC) cell viability. The expression of circ9119 was clearly reduced in OC tissues and cell lines, whereas the microRNA-21-5p (miR-21) levels were elevated compared with those in normal healthy control tissues and immortalized fallopian epithelial cell line FTE187. Further, circ9119 was overexpressed, causing a notable decrease in the viability and proliferation of OC cells and an increase in apoptosis. Further study showed that circ9119 upregulation resulted in a decrease in miR-21 levels. Bioinformatics forecasting (starBase and TargetScan) and dual luciferase reporter assay demonstrated that circ9119 acts as an miR-21 sponge. Recovery of miR-21 expression in circ9119-overexpressing OC cells showed that miR-21 exhibited the opposite effect on circ9119; moreover, its recovery could suppress the effects of circ9119 overexpression, recover cell proliferation, and reduce apoptosis. Furthermore, miR-21 was found to target phosphatase and tensin homologue (PTEN) 3′ untranslated region. PTEN protein and mRNA expression was reduced in OC tissues and cells, whereas it was increased on transfection with an miR-21 inhibitor. Thus, circ9119 could regulate cell proliferation and apoptosis of OC cells via by acting as an miR-21 sponge and targeting the PTEN–Akt pathway.
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32
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Jiang N, Dai Q, Su X, Fu J, Feng X, Peng J. Role of PI3K/AKT pathway in cancer: the framework of malignant behavior. Mol Biol Rep 2020; 47:4587-4629. [PMID: 32333246 PMCID: PMC7295848 DOI: 10.1007/s11033-020-05435-1] [Citation(s) in RCA: 318] [Impact Index Per Article: 79.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/03/2020] [Indexed: 12/12/2022]
Abstract
Given that the PI3K/AKT pathway has manifested its compelling influence on multiple cellular process, we further review the roles of hyperactivation of PI3K/AKT pathway in various human cancers. We state the abnormalities of PI3K/AKT pathway in different cancers, which are closely related with tumorigenesis, proliferation, growth, apoptosis, invasion, metastasis, epithelial-mesenchymal transition, stem-like phenotype, immune microenvironment and drug resistance of cancer cells. In addition, we investigated the current clinical trials of inhibitors against PI3K/AKT pathway in cancers and found that the clinical efficacy of these inhibitors as monotherapy has so far been limited despite of the promising preclinical activity, which means combinations of targeted therapy may achieve better efficacies in cancers. In short, we hope to feature PI3K/AKT pathway in cancers to the clinic and bring the new promising to patients for targeted therapies.
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Affiliation(s)
- Ningni Jiang
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Qijie Dai
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Xiaorui Su
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Jianjiang Fu
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Xuancheng Feng
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
| | - Juan Peng
- Department of Pathology, The Third Affiliated Hospital of Guangzhou Medical University, 63 Duobao Road, Guangzhou, 510150 China
- The Third Clinical School of Guangzhou Medical University, Guangzhou, 510150 China
- Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, 510150 China
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157 USA
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Zhao Q, Liu C, Xie Y, Tang M, Luo G, Chen X, Tian L, Yu X. Lung Cancer Cells Derived Circulating miR-21 Promotes Differentiation of Monocytes into Osteoclasts. Onco Targets Ther 2020; 13:2643-2656. [PMID: 32280240 PMCID: PMC7127863 DOI: 10.2147/ott.s232876] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 03/06/2020] [Indexed: 02/05/2023] Open
Abstract
Objective Osteoclastogenesis is a key process in osteolytic bone metastasis (BM). Previous studies indicated that some miRNAs could regulate cancers progression and osteoclastogenesis. Our purpose was to investigate the roles of lung cancer cells-derived circulating miR-21 on osteoclastogenesis and its clinical significance in BM patients. Materials and Methods The difference of miRNA expression in two lung cancer cell lines SBC-5 (with characteristic BM ability) and SBC-3 (without BM ability) were analyzed by microarray and qRT-PCR. Circulating miR-21 levels of lung cancer patients with or without BM were compared by qRT-PCR. The TRAP staining was used to investigate the effects of conditioned media from lung cancer cell lines or patients’ plasma with different miR-21 levels on osteoclastogenesis. ROC curve was used to evaluate the diagnostic performance of circulating miR-21 in BM patients. Results We found that miR-21 expression was specifically higher in SBC-5 than that in SBC-3 cells. The supernatants of SBC-5 cells with higher-level miR-21 promoted osteoclastogenesis. Moreover, we demonstrated that the circulating miR-21 level was significantly higher in BM patients than that in non-BM patients. The plasma from BM patients with higher-level miR-21 could also promote osteoclastogenesis. Mechanistically, lung cancer cells-derived circulating miR-21 could be transferred into osteoclast precursor cells and promote osteoclastogenesis probably by inhibiting PTEN. Finally, clinical data showed that circulating miR-21 had a potential for the diagnosis of BM. Conclusion Overall, our findings suggested that circulating miR-21 played important roles in osteoclastogenesis of lung cancer patients and may serve as a biomarker to diagnose BM of lung cancer.
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Affiliation(s)
- Qian Zhao
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China.,Department of General Practice, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Chang Liu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Ying Xie
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Mengjia Tang
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Guojing Luo
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xiang Chen
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Li Tian
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
| | - Xijie Yu
- Laboratory of Endocrinology and Metabolism, Department of Endocrinology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, People's Republic of China
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Qin J, Fu M, Wang J, Huang F, Liu H, Huangfu M, Yu D, Liu H, Li X, Guan X, Chen X. PTEN/AKT/mTOR signaling mediates anticancer effects of epigallocatechin‑3‑gallate in ovarian cancer. Oncol Rep 2020; 43:1885-1896. [PMID: 32236585 PMCID: PMC7160558 DOI: 10.3892/or.2020.7571] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 03/12/2020] [Indexed: 12/17/2022] Open
Abstract
Epigallocatechin‑3‑gallate (EGCG), a polyphenol present in green tea, exhibits anticancer effects in various types of cancer. A number of studies have focused on the effects of EGCG on lung cancer, but not ovarian cancer. Previous reports have implicated that EGCG suppressed ovarian cancer cell proliferation and induced apoptosis, but its potential anticancer mechanisms and signaling pathways remain unclear. Thus, it is necessary to determine the anti‑ovarian cancer effects of EGCG and explore the underlying mechanisms. In the present study, EGCG exerted stronger proliferation inhibition on SKOV3 cells compared with A549 cells and induced apoptosis in SKOV3 cells, as well as upregulated PTEN expression and downregulated the expression of phosphoinositide‑dependent kinase‑1 (PDK1), phosphor (p)‑AKT and p‑mTOR. These effects were reversed by the PTEN inhibitor VO‑Ohpic trihydrate. The results of the mouse xenograft experiment demonstrated that 50 mg/kg EGCG exhibited increased tumor growth inhibition compared with 5 mg/kg paclitaxel. In addition, PTEN expression was upregulated, whereas the expression levels of PDK1, p‑AKT and p‑mTOR were downregulated in the EGCG treatment group compared with those in untreated mice in vivo. In conclusion, the results of the present study provided a new underlying mechanism of the effect of EGCG on ovarian cancer and may lead to the development of EGCG as a candidate drug for ovarian cancer therapy.
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Affiliation(s)
- Jianli Qin
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Minglei Fu
- Dispensary, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Juan Wang
- Research Center for Science, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Fengxiang Huang
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Haiping Liu
- Science and Technology Department, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Mengjie Huangfu
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Dan Yu
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Haowei Liu
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Xumei Li
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Xiao Guan
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Xu Chen
- College of Pharmacy, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
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Chen L, Ren P, Zhang Y, Gong B, Yu D, Sun X. Long non‑coding RNA GAS5 increases the radiosensitivity of A549 cells through interaction with the miR‑21/PTEN/Akt axis. Oncol Rep 2020; 43:897-907. [PMID: 32020207 PMCID: PMC7041238 DOI: 10.3892/or.2020.7467] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/19/2019] [Indexed: 12/27/2022] Open
Abstract
Radioresistance hinders the therapeutic outcomes of radiotherapy in non-small cell lung cancer (NSCLC). Although long non-coding RNAs (lncRNAs) have been demonstrated to participate in the regulation of multiple cell behaviors, whether they can modulate the radiosensitivity of NSCLC and the underlying molecular mechanisms have not been well investigated. In the present study, it was revealed that NSCLC NCI-H460 cells were more sensitive to ionizing radiation (IR) than A549 cells. Using the RNA-Seq method, four highly differentially expressed lncRNAs were identified, including the growth arrest-specific transcript 5 (GAS5), syntaxin binding protein 5 antisense RNA 1 (STXBP5-AS1), metastasis associated lung adenocarcinoma transcript 1 (MALAT1) and X-inactive specific transcript (XIST), which were predicted to play roles in the acquisition of radiosensitivity. Using real-time quantitative PCR (qPCR), it was demonstrated that lncRNA GAS5 was significantly upregulated in NCI-H460 cells but not in A549 cells during IR. Mechanistically, it was demonstrated that overexpression of lncRNA GAS5 decreased the level of microRNA-21 (miR-21). Overexpression of lncRNA GAS5 or suppression of miR-21 markedly increased the IR-induced cell apoptosis of A549 cells. It was also demonstrated that overexpression of lncRNA GAS5 increased PTEN expression and suppressed Akt phosphorylation through the modulation of miR-21. Notably, it was revealed that IR enhanced the interaction between lncRNA GAS5 and the miR-21/PTEN/Akt axis. In summary, the present findings revealed that lncRNA GAS5 has a radiosensitization effect on NSCLC, indicating the potential application of lncRNA GAS5 in NSCLC radiotherapy.
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Affiliation(s)
- Li Chen
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Oral Radiology, School and Hospital of Stomatology, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Ping Ren
- Department of Thoracic Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yandong Zhang
- Department of Rheumatology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Baijuan Gong
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Department of Orthodontics, School and Hospital of Stomatology, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Dehai Yu
- The Laboratory of Cancer Precision Medicine of The First Hospital of Jilin University, Changchun, Jilin 130061, P.R. China
| | - Xiguang Sun
- Hand Surgery Department, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Al-Alem LF, Baker AT, Pandya UM, Eisenhauer EL, Rueda BR. Understanding and Targeting Apoptotic Pathways in Ovarian Cancer. Cancers (Basel) 2019; 11:cancers11111631. [PMID: 31652965 PMCID: PMC6893837 DOI: 10.3390/cancers11111631] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/11/2022] Open
Abstract
Ovarian cancer cells evade the immune system as well as chemotherapeutic and/or biologic treatments through inherent or acquired mechanisms of survival and drug resistance. Depending on the cell type and the stimuli, this threshold can range from external forces such as blunt trauma to programmed processes such as apoptosis, autophagy, or necroptosis. This review focuses on apoptosis, which is one form of programmed cell death. It highlights the multiple signaling pathways that promote or inhibit apoptosis and reviews current clinical therapies that target apoptotic pathways in ovarian cancer.
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Affiliation(s)
- Linah F Al-Alem
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
| | - Andrew T Baker
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
| | - Unnati M Pandya
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
| | - Eric L Eisenhauer
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
- Gynecology and Oncology Division, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
| | - Bo R Rueda
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
- Gynecology and Oncology Division, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
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Chi Y, Wang D, Wang J, Yu W, Yang J. Long Non-Coding RNA in the Pathogenesis of Cancers. Cells 2019; 8:cells8091015. [PMID: 31480503 PMCID: PMC6770362 DOI: 10.3390/cells8091015] [Citation(s) in RCA: 519] [Impact Index Per Article: 103.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/25/2019] [Accepted: 08/29/2019] [Indexed: 12/24/2022] Open
Abstract
The incidence and mortality rate of cancer has been quickly increasing in the past decades. At present, cancer has become the leading cause of death worldwide. Most of the cancers cannot be effectively diagnosed at the early stage. Although there are multiple therapeutic treatments, including surgery, radiotherapy, chemotherapy, and targeted drugs, their effectiveness is still limited. The overall survival rate of malignant cancers is still low. It is necessary to further study the mechanisms for malignant cancers, and explore new biomarkers and targets that are more sensitive and effective for early diagnosis, treatment, and prognosis of cancers than traditional biomarkers and methods. Long non-coding RNAs (lncRNAs) are a class of RNA transcripts with a length greater than 200 nucleotides. Generally, lncRNAs are not capable of encoding proteins or peptides. LncRNAs exert diverse biological functions by regulating gene expressions and functions at transcriptional, translational, and post-translational levels. In the past decade, it has been demonstrated that the dysregulated lncRNA profile is widely involved in the pathogenesis of many diseases, including cancer, metabolic disorders, and cardiovascular diseases. In particular, lncRNAs have been revealed to play an important role in tumor growth and metastasis. Many lncRNAs have been shown to be potential biomarkers and targets for the diagnosis and treatment of cancers. This review aims to briefly discuss the latest findings regarding the roles and mechanisms of some important lncRNAs in the pathogenesis of certain malignant cancers, including lung, breast, liver, and colorectal cancers, as well as hematological malignancies and neuroblastoma.
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Affiliation(s)
- Yujing Chi
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing 100044, China
| | - Di Wang
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing 100044, China
| | - Junpei Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Key Laboratory of Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Beijing 100191, China
| | - Weidong Yu
- Department of Central Laboratory & Institute of Clinical Molecular Biology, Peking University People's Hospital, Beijing 100044, China
| | - Jichun Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
- Key Laboratory of Cardiovascular Science of the Ministry of Education, Center for Non-coding RNA Medicine, Beijing 100191, China.
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